DAQ-2024-011468

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DAQC-1097-24
Site ID 10121 (B1)

MEMORANDUM

TO: FILE – HILL AIR FORCE BASE (HAFB) – Main Base

THROUGH: Harold Burge, Major Source Compliance Section Manager

FROM: Joe Rockwell, Environmental Scientist

DATE: October 24, 2024

SUBJECT: FULL COMPLIANCE EVALUATION (FCE), Major, Davis/Weber Counties,
FRS ID #UT0000004901100007

INSPECTION DATES: September 10-13, 2024

SOURCE ADDRESS: Hill Air Force Base – Main Base, 7290 Weiner Street, Utah 84056

SOURCE CONTACT: Erik Dettermaier, Air Compliance Program Manager
Office: 801-777-0888, Cell: 385-368-1042

OPERATING STATUS: Operating Normally.

PROCESS DESCRIPTION: General: Hill Air Force Base (HAFB) is located about 30 miles north of
Salt Lake City and comprises 6,600 acres including the Little Mountain
facility located 18 miles northwest of the main base. The base provides
worldwide logistics support for some of the Air Force and Defense
Department's most sophisticated weapon systems. Support operations
include systems management, spare parts, and major maintenance and
modification services. HAFB has extensive industrial facilities for
painting, paint stripping, plating, parts warehousing/distribution, and
industrial wastewater treatment. In addition, HAFB manages and
maintains other systems such as conventional air munitions, solid
propellants, landing gear, and training devices. A methane-fueled power
plant has been installed that operates on landfill gas.

HAFB is a major source of air pollution for PM2.5,PM10, NOx, CO, VOC,
and HAP emissions. HAFB is subject to 40 CFR 60 Subparts A, Dc, Kb,
IIII, and JJJJ; 40 CFR 63, Subparts A, N, T, GG, DDDDD, and ZZZZ;
and 40 CFR 82 Subparts B and F (the enforcement primacy of 40 CFR
82 remains with EPA at this time). Applicable State of Utah rules are
also incorporated into the permit.

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Little Mountain operates a survivability testing facility where they
expose components to various stresses that might be reflective of
wartime exposures for viability. Included in these tests are radiation
exposure, vibration, shock, and other stimuli. These tests are all generally
done indoors with very specialized machines designed specifically to
perform that function. The facilities at Little Mountain are included in
the HAFB main base permit conditions for the applicable operations.

APPLICABLE REGULATIONS:

Title V Operating Permit #1100007004 issued June 30, 2022, revised
June 30, 2022

SOURCE INSPECTION EVALUATION:
SECTION I: GENERAL PROVISIONS
I.A Federal Enforcement.

All terms and conditions in this permit, including those provisions designed to limit the potential to emit,
are enforceable by the EPA and citizens under the Clean Air Act of 1990 (CAA) except those terms and
conditions that are specifically designated as "State Requirements". (R307-415-6b)

Status:

This is a statement of fact and not an inspection item.

I.B Permitted Activity(ies).

Except as provided in R307-415-7b(1), the permittee may not operate except in compliance with this
permit. (See also Provision I.E, Application Shield)

Status: In compliance – HAFB was operating in compliance with the applicable conditions of the permit at
time of inspection.

I.C Duty to Comply.

I.C.1 The permittee must comply with all conditions of the operating permit. Any permit noncompliance
constitutes a violation of the Air Conservation Act and is grounds for any of the following: enforcement
action; permit termination; revocation and reissuance; modification; or denial of a permit renewal
application. (R307-415-6a(6)(a))

I.C.2 It shall not be a defense for a permittee in an enforcement action that it would have been necessary to halt
or reduce the permitted activity in order to maintain compliance with the conditions of this permit.
(R307-415-6a(6)(b))

I.C.3 The permittee shall furnish to the Director, within a reasonable time, any information that the Director
may request in writing to determine whether cause exists for modifying, revoking and reissuing, or
terminating this permit or to determine compliance with this permit. Upon request, the permittee shall also
furnish to the Director copies of records required to be kept by this permit or, for information claimed to
be confidential, the permittee may furnish such records directly to the EPA along with a claim of
confidentiality. (R307-415-6a(6)(e))

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I.C.4 This permit may be modified, revoked, reopened, and reissued, or terminated for cause. The filing of a
request by the permittee for a permit modification, revocation and reissuance, or termination, or of a
notification of planned changes or anticipated noncompliance shall not stay any permit condition, except
as provided under R307-415-7f(1) for minor permit modifications. (R307-415-6a(6)(c))

Status: In compliance – No confidential records were taken from the site. All records were provided at time
of the inspection. Portions of this condition are statement of fact and not an inspection item.

I.D Permit Expiration and Renewal.

I.D.1 This permit is issued for a fixed term of five years and expires on the date shown under "Enforceable
Dates and Timelines" at the front of this permit. (R307-415-6a(2))

I.D.2 Application for renewal of this permit is due on or before the date shown under "Enforceable Dates and
Timelines" at the front of this permit. An application may be submitted early for any reason.
(R307-415-5a(1)(c))

I.D.3 An application for renewal submitted after the due date listed in I.D.2 above shall be accepted for
processing, but shall not be considered a timely application and shall not relieve the permittee of any
enforcement actions resulting from submitting a late application. (R307-415-5a(5))

I.D.4 Permit expiration terminates the permittee's right to operate unless a timely and complete renewal
application is submitted consistent with R307-415-7b (see also Provision I.E, Application Shield) and
R307-415-5a(1)(c) (see also Provision I.D.2). (R307-415-7c(2))

Status: The permit expires June 30, 2027. Application for permit renewal is due December 30, 2026.

I.E Application Shield.

If the permittee submits a timely and complete application for renewal, the permittee's failure to have an
operating permit will not be a violation of R307-415, until the Director takes final action on the permit
renewal application. In such case, the terms and conditions of this permit shall remain in force until permit
renewal or denial. This protection shall cease to apply if, subsequent to the completeness determination
required pursuant to R307-415-7a(3), and as required by R307-415-5a(2), the applicant fails to submit by
the deadline specified in writing by the Director any additional information identified as being needed to
process the application. (R307-415-7b(2))

Status: Application for permit renewal is due December 30, 2026.

I.F Severability.

In the event of a challenge to any portion of this permit, or if any portion of this permit is held invalid, the
remaining permit conditions remain valid and in force. (R307-415-6a(5))

Status: This is a statement of fact and not an inspection item.

I.G Permit Fee.

I.G.1 The permittee shall pay an annual emission fee to the Director consistent with R307-415-9.
(R307-415-6a(7))

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I.G.2 The emission fee shall be due on October 1 of each calendar year or 45 days after the source receives
notice of the amount of the fee, whichever is later. (R307-415-9(4)(a))

Status: In compliance – The annual emission fee was in the process of being paid at time of the inspection.

I.H No Property Rights.

This permit does not convey any property rights of any sort, or any exclusive privilege.
(R307-415-6a(6)(d))

Status: This is a statement of fact and not an inspection item.

I.I Revision Exception.

No permit revision shall be required, under any approved economic incentives, marketable permits,
emissions trading and other similar programs or processes for changes that are provided for in this permit.
(R307-415-6a(8))

Status: This is a statement of fact and not an inspection item.

I.J Inspection and Entry.

I.J.1 Upon presentation of credentials and other documents as may be required by law, the permittee shall allow
the Director or an authorized representative to perform any of the following:

I.J.1.a Enter upon the permittee's premises where the source is located or emissions related activity is conducted,
or where records are kept under the conditions of this permit. (R307-415-6c(2)(a))

I.J.1.b Have access to and copy, at reasonable times, any records that must be kept under the conditions of this
permit. (R307-415-6c(2)(b))

I.J.1.c Inspect at reasonable times any facilities, equipment (including monitoring and air pollution control
equipment), practice, or operation regulated or required under this permit. (R307-415-6c(2)(c))

I.J.1.d Sample or monitor at reasonable times substances or parameters for the purpose of assuring compliance
with this permit or applicable requirements. (R307-415-6c(2)(d))

I.J.2 Any claims of confidentiality made on the information obtained during an inspection shall be made
pursuant to Utah Code Ann. Section 19-1-306. (R307-415-6c(2)(e))

Status: In compliance. A Visitor Pass was required to be obtained prior to being granted access to the base.
Once on base it was required to be escorted. Required records were provided, with the exception of
some confidential records.

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I.K Certification.

Any application form, report, or compliance certification submitted pursuant to this permit shall contain
certification as to its truth, accuracy, and completeness, by a responsible official as defined in R307-415-3.
This certification shall state that, based on information and belief formed after reasonable inquiry, the
statements and information in the document are true, accurate, and complete. (R307-415-5d)

Status: In compliance – All reports and certifications submitted, by HAFB, appeared to have certification
statements and were signed by responsible officials (RO).

I.L Compliance Certification.

I.L.1 Permittee shall submit to the Director an annual compliance certification, certifying compliance with the
terms and conditions contained in this permit, including emission limitations, standards, or work practices.
This certification shall be submitted no later than the date shown under "Enforceable Dates and Timelines"
at the front of this permit, and that date each year following until this permit expires. The certification
shall include all the following (permittee may cross-reference this permit or previous reports):
(R307-415-6c(5))

I.L.1.a The identification of each term or condition of this permit that is the basis of the certification;

I.L.1.b The identification of the methods or other means used by the permittee for determining the compliance
status with each term and condition during the certification period. Such methods and other means shall
include, at a minimum, the monitoring and related recordkeeping and reporting requirements in this
permit. If necessary, the permittee also shall identify any other material information that must be included
in the certification to comply with section 113(c)(2) of the Act, which prohibits knowingly making a false
certification or omitting material information;

I.L.1.c The status of compliance with the terms and conditions of the permit for the period covered by the
certification, including whether compliance during the period was continuous or intermittent. The
certification shall be based on the method or means designated in Provision I.L.1.b. The certification shall
identify each deviation and take it into account in the compliance certification. The certification shall also
identify as possible exceptions to compliance any periods during which compliance is required and in
which an excursion or exceedance as defined under 40 CFR Part 64 occurred; and

I.L.1.d Such other facts as the Director may require to determine the compliance status.

I.L.2 The permittee shall also submit all compliance certifications to the EPA, Region VIII, at the following
address or to such other address as may be required by the Director: (R307-415-6c(5)(d))

Environmental Protection Agency, Region VIII
Office of Enforcement, Compliance and Environmental Justice
(mail code 8ENF)
1595 Wynkoop Street
Denver, CO 80202-1129

Status: In compliance – The initial annual compliance certification, dated August 13, 2024, was received on
August 21, 2024. The compliance certification for report period June 1, 2023 – May 31, 2024, was
revised to indicate that condition II.B.47.a.2 is intermittent. The revised report was resubmitted on
October 21, 2024, and deemed acceptable.

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I.M Permit Shield.

I.M.1 Compliance with the provisions of this permit shall be deemed compliance with any applicable
requirements as of the date of this permit, provided that:

I.M.1.a Such applicable requirements are included and are specifically identified in this permit, or
(R307-415-6f(1)(a))

I.M.1.b Those requirements not applicable to the source are specifically identified and listed in this permit. (R307-
415-6f(1)(b))

I.M.2 Nothing in this permit shall alter or affect any of the following:

I.M.2.a The emergency provisions of Utah Code Ann. Section 19-1-202 and Section 19-2-112, and the provisions
of the CAA Section 303. (R307-415-6f(3)(a))

I.M.2.b The liability of the owner or operator of the source for any violation of applicable requirements under Utah
Code Ann. Section 19-2-107(2)(a)(xiii) and Section 19-2-110 prior to or at the time of issuance of this
permit. (R307-415-6f(3)(b))

I.M.2.c The applicable requirements of the Acid Rain Program, consistent with the CAA Section 408(a). (R307-
415-6f(3)(c))

I.M.2.d The ability of the Director to obtain information from the source under Utah Code Ann. Section 19-2-120,
and the ability of the EPA to obtain information from the source under the CAA Section 114. (R307-415-
6f(3)(d))

Status: N/A – See section III of this permit.

I.N Emergency Provision.

I.N.1 An "emergency" is any situation arising from sudden and reasonably unforeseeable events beyond the
control of the source, including acts of God, which situation requires immediate corrective action to
restore normal operation, and that causes the source to exceed a technology-based emission limitation
under this permit, due to unavoidable increases in emissions attributable to the emergency. An emergency
shall not include noncompliance to the extent caused by improperly designed equipment, lack of
preventive maintenance, careless or improper operation, or operator error. (R307-415-6g(1))

I.N.2 An emergency constitutes an affirmative defense to an action brought for noncompliance with such
technology-based emission limitations if the affirmative defense is demonstrated through properly signed,
contemporaneous operating logs, or other relevant evidence that:

I.N.2.a An emergency occurred and the permittee can identify the causes of the emergency. (R307-415-6g(3)(a))

I.N.2.b The permitted facility was at the time being properly operated. (R307-415-6g(3)(b))

I.N.2.c During the period of the emergency the permittee took all reasonable steps to minimize levels of emissions
that exceeded the emission standards, or other requirements in this permit. (R307-415-6g(3)(c))

I.N.2.d The permittee submitted notice of the emergency to the Director within two working days of the time
when emission limitations were exceeded due to the emergency. This notice must contain a description of

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the emergency, any steps taken to mitigate emissions, and corrective actions taken. This notice fulfills the
requirement of Provision I.S.2.c below. (R307-415-6g(3)(d))

I.N.3 In any enforcement proceeding, the permittee seeking to establish the occurrence of an emergency has the
burden of proof. (R307-415-6g(4))

I.N.4 This emergency provision is in addition to any emergency or upset provision contained in any other
section of this permit. (R307-415-6g(5))

Status: No emergencies have occurred, at HAFB, since the last inspection which was conducted on August 9,
2023.

I.O Operational Flexibility.

Operational flexibility is governed by R307-415-7d(1).

Status: In compliance – The facility operational flexibility is conducted according to the flexibility
provisions in conditions II.B.2.b, II.B.6.b, II.B.9.e, II.B.13.b, II.B.24.b, II.B.35.b, II.B.39.b and
II.B.41.c.

I.P Off-permit Changes.

Off-permit changes are governed by R307-415-7d(2).

I.Q Administrative Permit Amendments.

Administrative permit amendments are governed by R307-415-7e.

I.R Permit Modifications.

Permit modifications are governed by R307-415-7f.

Status: These are statements of fact and not inspection items (I.P through I.R).

I.S Records and Reporting.

I.S.1 Records.

I.S.1.a The records of all required monitoring data and support information shall be retained by the permittee for a
period of at least five years from the date of the monitoring sample, measurement, report, or application.
Support information includes all calibration and maintenance records, all original strip-charts or
appropriate recordings for continuous monitoring instrumentation, and copies of all reports required by
this permit. (R307-415-6a(3)(b)(ii))

I.S.1.b For all monitoring requirements described in Section II, Special Provisions, the source shall record the
following information, where applicable: (R307-415-6a(3)(b)(i))

I.S.1.b.1 The date, place as defined in this permit, and time of sampling or measurement.

I.S.1.b.2 The date analyses were performed.

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I.S.1.b.3 The company or entity that performed the analyses.

I.S.1.b.4 The analytical techniques or methods used.

I.S.1.b.5 The results of such analyses.

I.S.1.b.6 The operating conditions as existing at the time of sampling or measurement.

Status: In compliance – Required records were provided at time of the inspection.

I.S.2 Reports.

I.S.2.a Monitoring reports shall be submitted to the Director every six months, or more frequently if specified in
Section II. All instances of deviation from permit requirements shall be clearly identified in the reports.
(R307-415-6a(3)(c)(i))

I.S.2.b All reports submitted pursuant to Provision I.S.2.a shall be certified by a responsible official in accordance
with Provision I.K of this permit. (R307-415-6a(3)(c)(i)

I.S.2.c The Director shall be notified promptly of any deviations from permit requirements including those
attributable to upset conditions as defined in this permit, the probable cause of such deviations, and any
corrective actions or preventative measures taken. Prompt, as used in this condition, shall be defined as
written notification within the number of days shown under "Enforceable Dates and Timelines" at the front
of this permit. Deviations from permit requirements due to breakdowns shall be reported in accordance
with the provisions of R307-107. (R307-415-6a(3)(c)(ii))

I.S.3 Notification Addresses.

I.S.3.a All reports, notifications, or other submissions required by this permit to be submitted to the Director are
to be sent to the following address or to such other address as may be required by the Director:

Utah Division of Air Quality
P.O. Box 144820
Salt Lake City, UT 84114-4820
Phone: [phone]

I.S.3.b All reports, notifications or other submissions required by this permit to be submitted to the EPA should
be sent to one of the following addresses or to such other address as may be required by the Director:

For annual compliance certifications:

Environmental Protection Agency, Region VIII
Office of Enforcement, Compliance and Environmental Justice
(mail code 8ENF)
1595 Wynkoop Street
Denver, CO 80202-1129

For reports, notifications, or other correspondence related to permit modifications, applications, etc.:

Environmental Protection Agency, Region VIII
Air Permitting and Monitoring Branch (mail code 8ARD-PM)

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1595 Wynkoop Street
Denver, CO 80202-1129
Phone: [phone]

Status: In compliance – The six-month monitoring reports, concerning the above referenced annual
compliance certification, were received on August 21, 2024 and January 18, 2024. They were
deemed acceptable. The appropriate deviation reports were also submitted and deemed acceptable.
See status of condition I.L.

I.T Reopening for Cause.

I.T.1 A permit shall be reopened and revised under any of the following circumstances:

I.T.1.a New applicable requirements become applicable to the permittee and there is a remaining permit term of
three or more years. No such reopening is required if the effective date of the requirement is later than the
date on which this permit is due to expire, unless the terms and conditions of this permit have been
extended pursuant to R307-415-7c(3), application shield. (R307-415-7g(1)(a))

I.T.1.b The Director or EPA determines that this permit contains a material mistake or that inaccurate statements
were made in establishing the emissions standards or other terms or conditions of this permit. (R307-415-
7g(1)(c))

I.T.1.c EPA or the Director determines that this permit must be revised or revoked to assure compliance with
applicable requirements. (R307-415-7g(1)(d))

I.T.1.d Additional applicable requirements are to become effective before the renewal date of this permit and are
in conflict with existing permit conditions. (R307-415-7g(1)(e))

I.T.2 Additional requirements, including excess emissions requirements, become applicable to a Title IV
affected source under the Acid Rain Program. Upon approval by EPA, excess emissions offset plans shall
be deemed to be incorporated into this permit. (R307-415-7g(1)(b))

I.T.3 Proceedings to reopen and issue a permit shall follow the same procedures as apply to initial permit
issuance and shall affect only those parts of this permit for which cause to reopen exists. (R307-415-
7g(2))

Status: This is a statement of fact and not an inspection item.

I.U Inventory Requirements.

An emission inventory shall be submitted in accordance with the procedures of R307-150, Emission
Inventories. (R307-150)

Status: In compliance – HAFB’s 2023 emission inventory was submitted on April 12, 2024, before the due
date of April 15, 2024.

I.V Title IV and Other, More Stringent Requirements

Where an applicable requirement is more stringent than an applicable requirement of regulations
promulgated under Title IV of the Act, Acid Deposition Control, both provisions shall be incorporated into
this permit. (R307-415-6a(1)(b))

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Status: This is a statement of fact and not an inspection item.

SECTION II: SPECIAL PROVISIONS

II.A Emission Unit(s) Permitted to Discharge Air Contaminants.
(R307-415-4(3)(a) and R307-415-4(4))

II.A.1 Permitted Source
Source-wide

II.A.2 Non-chemical Depainting General Requirements
Unit 1 Description: This category includes all non-chemical depainting (NCD) including abrasive blasting
(ABCL) emission units, the following laser depainting processes: LADS II (controlled by a cartridge filter
system), building 576 (controlled by a cartridge filter system), building 275 (controlled by a cartridge
filter system), building 269 (controlled by a cartridge filter system), building 220 (controlled by a
cartridge filter system), and portable laser depainting units throughout the base controlled by HEPA filters.
This unit also includes the polishing/grinding process controlled by a pulse-jet dust collector in the
Evaluation and Inspection (E&I) Shop in Bldg. 507. The unit includes the sanding room dust collector
(DC-1) with cartridge filters and vacuum system dust collector (DC-2) for the sanding equipment in Bldg.
238; six vacuum system dust collectors (DC-3), two with cyclonic filters and four with HEPA filters, that
are contained in Bldg. 674; a vacuum system dust collector (DC-4), with cartridge filters, for sanding
equipment is contained in Building 507; a vacuum system dust collector (DC-5), with cyclonic filters, to
clean residual abrasive blast material is contained in Bldg. 220; a sanding room exhaust filter system (DC-
6) at Bldg. 265; and a vacuum system dust collector (DC-7) for a composite, metal, woodworking shop
contained in Bldg. 5.

II.A.3 Non-chemical Depainting Subject to A-NESHAP
Unit 2 Description: All outer surface area abrasive blasting and non-chemical depainting of aerospace
vehicles or components subject to the Aerospace NESHAP (40 CFR 63 Subpart GG). This unit includes
the following laser depainting processes: LADS II (controlled by a cartridge filter system), building 576
(controlled by a cartridge filter system), building 275 (controlled by a cartridge filter system), building
269 (controlled by a cartridge filter system), building 220 (controlled by a cartridge filter system), and
portable laser depainting units throughout the base controlled by HEPA filters. This unit includes: the
polishing/grinding process controlled by a pulse-jet dust collector in the E&I Shop in Bldg. 507; the
sanding room dust collector (DC-1) with cartridge filters, and vacuum system dust collector (DC-2) for the
sanding equipment in Bldg. 238; six vacuum system dust collectors (DC-3), two with cyclonic filters and
four with HEPA filters at Bldg. 674; a sanding room exhaust filter system (DC-6) at Bldg. 265; and a
vacuum system dust collector (DC-7) for a composite, metal, woodworking shop contained in Bldg. 5.
These operations occur at various locations throughout the base and are a subset of Unit 1 Non-Chemical
Depainting General Requirements.

II.A.4 Non-chemical Depainting not Subject to A-NESHAP
Unit 3 Description: All non-chemical depainting emission units including confined and unconfined
abrasive blasting not subject to Aerospace NESHAP (40 CFR 63 Subpart GG). A vacuum system dust
collector (DC-4), with cartridge filters, for sanding equipment is contained in Building 507. A vacuum
system dust collector (DC-5), with cyclonic filters, to clean residual abrasive blast material is contained in
Bldg. 220. These operations occur at various locations throughout the base and are a subset of Unit 1 Non-
Chemical Depainting General Requirements.

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II.A.5 Aggregated Aircraft Engine Test Facilities
Unit 4 Description: All aircraft engine sound suppressors, engine test cells, mobile test stands, hush houses
in Buildings 5134, 240, 5184, 5185, 5186, 5187, and 5196, aircraft engine pickling booths in Building
279, and auxiliary power testing using. JP-4, JP-5, JP-6, JP-8, JP-10, Jet A, or equivalent fuels as
determined by the Director.

II.A.6 Liquid Calibration Systems
Unit 5 Description: Located throughout the base, various liquid calibration systems and associated
equipment, including test stands and atomizers, used for testing and calibrating fluid flow parts (such as
pumps, meters, valves, and controls) and fuel system components.

II.A.7 Hydrazine Thermal Oxidizer
Unit 6 Description: Single chambered, forced air, propane fired thermal oxidizer, adjacent to Bldg 2005,
to burn excess hydrazine from testing of Emergency Power Units (EPUs).

II.A.8 Rocket Engine, Munition Test, Indoor Test Range
Unit 7 Description: Rocket motor testing in Building 11647 with exhaust vented to the atmosphere;
miscellaneous munition testing in Building 1642; indoor test firing range including a pea gravel bullet trap
system in Building 746.

II.A.9 Limited Use Power Supply Units
Unit 11 Description: IC engines ranging from >11 to <= 2,210 KW used to provide mechanical or electric
power during emergency situations including: primary electric or mechanical power interruptions, fires,
malfunctioning aircraft landings, or others approved by the Director. Some units are subject to 40 CFR 60
Subpart IIII, 40 CFR 60 Subpart JJJJ, or 40 CFR 63 Subpart ZZZZ. These units therefore are a subset of
Unit 55 NSPS Compression Ignition Internal Combustion Engines, Unit 56 NSPS Compression Ignition
Internal Combustion Engine Non Fire Pump Engines, Unit 57 NSPS Compression Ignition Internal
Combustion Engine Fire Pump Engines, Unit 58 NSPS Spark Ignition Internal Combustion Engines, Unit
60 NESHAP Existing Compression Ignition Emergency Internal Combustion Engines <= 500 Hp, Unit 61
NESHAP New Compression Ignition Emergency Internal Combustion Engines > 500 Hp, Unit 62
NESHAP New Spark Ignition Emergency Internal Combustion Engines > 500 Hp or Unit 63 NESHAP
Existing Spark Ignition Emergency Internal Combustion Engines <= 500 Hp.

II.A.10 Metal Flame Spray Operations
Unit 12 Description: Includes two oxygen fuel flame spray booths controlled with cartridge filters on each
booth, five High Velocity Oxygenated Fuel (HVOF) flame spray booths controlled with a cartridge dust
collector on each booth, the HVOF and Wire Arc spray booth controlled with water wall filtration, the
oxygen/acetylene fuel and plasma spray booth (powder and wire spray) controlled with water wall
filtration, and other grandfathered flame spray equipment located in Building 511. There are no unit-
specific applicable requirements for the grandfathered flame spray equipment.

II.A.11 Metal Plating Subject to Hard Chrome NESHAP
Unit 13 Description: The open surface hard chromium electroplating tanks contained in two chrome
plating lines (1-4) are subject to 40 CFR 63 Subpart N, Chromium Electroplating NESHAP. These plating
lines are located in Building 505 and each tank is controlled by a composite mesh-pad scrubber (S-1, S-2).

II.A.12 Metal Plating Not Subject to Hard Chrome NESHAP
Unit 15 Description: Cadmium and Nickel plating lines, a zinc-nickel plating line, anodize and anodize
stripping lines and a tungsten carbide cobalt strip tank line. These units are not subject to 40 CFR 63
Subpart N, Chromium Electroplating NESHAP. These units are located in Building 505 and 511 and are
controlled by eight packed bed/composite mesh-pad scrubbers (S-4 to S-11).

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II.A.13 Degreasing and Solvent Cleaning Operations
Unit 17 Description: Immersion cold cleaning (Unit 17a), solvent cleaning operations (Unit 17b), remote
reservoir cold cleaning (Unit 17c), and vapor degreasing equipment (Unit 17d) using VOC containing
solvent(s) to clean soils and/or grease from parts.

II.A.14 Immersion Cold Cleaning Equipment > 2 Gallons
Unit 17a Description: Equipment not included in emission unit's 17b and 18 and not subject to 40 CFR 63
Subpart T where parts are immersed in solvent(s) below its boiling point. Units that include flushing and
immersion are included in this emission unit. These operations occur at various locations throughout the
base and are a subset of Unit 17 Degreasing and Solvent Cleaning Operations.

II.A.15 Solvent Cleaning Operations
Unit 17b Description: Solvent cleaning operations performed using a solvent that contains any VOC, or
combination of VOCs, which is used to clean parts, tools, machinery, equipment and work areas.
Cleaning operations include, but are not limited to, spraying, wiping, flushing, and purging. Also includes
small incidental cold cleaning equipment <= 2 gallons: mainly touchup activities that use small quantities
of solvent over/in small containers with the capacity of 2 gallons or less. Does not include emission units
with capacities > 2 gallons. Solvent cleaning does not include degreasing operations subject to R307-335,
operations subject to R307-342 through R307-347 and operations subject to R307-349 through R307-355.
These operations occur at various locations throughout the base and are a subset of Unit 17 Degreasing
and Solvent Cleaning Operations.

II.A.16 Remote Reservoir Cold Cleaning Equipment
Unit 17c Description: Equipment not subject to 40 CFR 63 Subpart T in which solvent(s) below its boiling
point is pumped to a sink-like work area that drains back into an enclosed container, allowing no solvent
to pool in the work area. These operations occur at various locations throughout the base and are a subset
of Unit 17 Degreasing and Solvent Cleaning Operations.

II.A.17 Open-Top Vapor Degreasing Equipment
Unit 17d Description: Equipment not subject to 40 CFR 63 Subpart T which has its upper surface open to
air and boils solvent(s) to create a vapor to clean soils and/or grease from parts. These operations occur at
various locations throughout the base and are a subset of Unit 17 Degreasing and Solvent Cleaning
Operations.

II.A.18 Cold Solvent Tanks, Building 2013
Unit 18 Description: Two cold solvent tanks and a 1500-gallon waste solvent storage tank located in
Building 2013.

II.A.19 Curing and Burnout Ovens
Unit 20 Description: Two natural gas-fired curing and burnout ovens.

II.A.20 Plastics Shop Dust Collector in Bldg 257
Unit 65 Description: Cyclone dust collector (DC-1) to control particulate emissions from the plastics shop
in Building 257.

II.A.21 IC Engine/Turbine Test Stands, Load Test System, and Generator Load Testing Operations
Unit 23 Description: IC engine/turbine test stands (AQUIS #34360) rated above 25 horsepower, load
testing operations and associated equipment (AQUIS #44887), and generator load testing operations (AQ
ID 3617). These units, located base-wide, can be fired on JP-4, JP-5, JP-6, JP-8, JP-10, Jet A, gasoline, or
diesel fuel, or equivalent fuels as determined by the Director.

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II.A.22 Aircraft Fuel/Distillation Systems
Unit 24 Description: Closed loop distillation systems at bldgs. 287, 236 and 680 used to purge JP-5, JP-6,
JP-8, JP-10, Jet A, or equivalent fuels as determined by the Director, out of aircraft fuel tanks; includes
nine above ground storage tanks, and three vacuum distillation units. These storage tanks are not a subset
of Unit 52 Fuel Storage Tanks.

II.A.23 Carbon Brake Facility
Unit 25 Description: Abrasive cleaning and brake coating operations with vented hoods and coating
booths at the Carbon Brake Facility located in Building 507.

II.A.24 Surface Coating Operation Group
Unit 26 Description: Aggregated Aerospace NESHAP surface coating operations, Aerospace Manufacture
and Rework Facilities subject to R307-355, chemical depainting operations and Non Aerospace NESHAP
surface coating operations excluding architectural coating and facility maintenance. These units are
located at various locations throughout the base.

II.A.25 Aerospace NESHAP General
Unit 27 Description: Aggregation of all surface coating operations of aerospace vehicles or components
subject to 40 CFR 63 Subpart GG National Emission Standards for Aerospace Manufacturing and Rework
Facilities. 'Aerospace vehicles or components' are defined in 40 CFR 63 Subpart GG. These operations
occur at various locations throughout the base and are a subset of Unit 26 Surface Coating Operation
Group.

II.A.26 Aerospace NESHAP Chemical Cleaning
Unit 28 Description: Aggregation of hand-wipe cleaning, spray gun cleaning, and/or flush cleaning of
aerospace vehicles or components on base which are subject to 40 CFR 63, Subpart GG National
Emission Standards for Aerospace Manufacturing and Rework Facilities. 'Aerospace vehicles or
components' are defined in 40 CFR 63 Subpart GG. These operations occur at various locations
throughout the base and are a subset of Unit 26 Surface Coating Operation Group.

II.A.27 Aerospace NESHAP Coating
Unit 29 Description: Application of primer, topcoat, and specialty coating to aerospace vehicles or
components subject to 40 CFR 63, Subpart GG National Emission Standards for Aerospace
Manufacturing and Rework Facilities. 'Aerospace vehicles or components' are defined in 40 CFR 63
Subpart GG. These operations occur at various locations throughout the base and are a subset of Unit 26
Surface Coating Operation Group.

II.A.28 Aerospace NESHAP Chemical Depainting
Unit 30 Description: All outer surface area chemical depainting of aerospace vehicles or components
subject to 40 CFR 63, Subpart GG National Emission Standards for Aerospace Manufacturing and
Rework Facilities. 'Aerospace vehicles or components' are defined in 40 CFR 63 Subpart GG. These
operations occur at various locations throughout the base and are a subset of Unit 26 Surface Coating
Operation Group.

II.A.29 Miscellaneous Metal Parts and Products Coatings
Unit 31 Description: Surface coating of miscellaneous metal parts and products coatings including, but not
limited to, large and small farm machinery, small appliances, commercial machinery, industrial machinery
and fabricated metal products. These units are located at various locations throughout the base and are a
subset of Unit 26 Surface Coating Operation Group.

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II.A.30 Composite Core Processes in Building 238
Unit 32 Description: Three 5-axis routers vented to two baghouses, miscellaneous cutting equipment
vented to one baghouse.

II.A.31 Wood working baghouse in Building 849
Unit 34 Description: Baghouse to control PM10 emissions from wood working operations in Building 849.

II.A.32 Bake Oven in Building 1701
Unit 35 Description: Natural gas-fired bake oven rated at 2 MMBTU/hr. The bake oven is subject to 40
CFR 63 Subpart DDDDD and is a subset of Unit 66 NESHAP Existing Boilers and Process Heaters.

II.A.33 Aggregated Boiler Group
Unit 36 Description: 35 natural gas-fired, low NOx boilers rated from 1.27 to 87.5 MMBTU/hr including
those listed in Units 37 and 38 and excluding those listed in Unit 39. Most are capable of combusting
diesel, # 2 Fuel Oil, JP-4, JP-5, JP-6, JP-8, JP-10, and/or Jet A, or equivalent fuels as determined by the
Director as backup fuel. Some of the boilers are subject to 40 CFR 63 Subpart DDDDD and are a subset
of Unit 66 NESHAP Existing Boilers and Process Heaters or Unit 67 NESHAP New/Reconst Boilers and
Process Heaters.

II.A.34 NSPS Boilers
Unit 37 Description: Thirteen natural gas-fired, low NOx, boilers rated between 10.5 to 87.5 MMBTU/hr
each, capable of combusting diesel, #2 Fuel Oil, JP-4, JP-5, JP-6, JP-8, JP-10, and/or Jet A, or equivalent
fuels as determined by the Director as backup fuel. All of these boilers are subject to 40 CFR 60, Subpart
Dc. These boilers are also subject to 40 CFR 63 Subpart DDDDD and a subset of Unit 66 NESHAP
Existing Boilers and Process Heaters or Unit 67 NESHAP New/Reconst Boilers and Process Heaters.

II.A.35 Used Oil Boiler in Building 1703
Unit 38 Description: Used oil boiler rated at 25.0 MMBTU/hr with dual burner (natural gas and used oil).
This boiler is capable of combusting diesel, #2 Fuel Oil, JP-4, JP-5, JP-6, JP-8, JP-10, and/or Jet A, or
equivalent fuels as determined by the Director as backup fuel. This boiler is subject to 40 CFR 60,
Subpart Dc and is a subset of Unit 37 NSPS Boilers. This boiler is also subject to 40 CFR 63 Subpart
DDDDD and is a subset of Unit 66 NESHAP Existing Boilers and Process Heaters.

II.A.36 Grandfathered Boilers
Unit 39 Description: Fourteen boilers ranging in size from small process boilers to large commercial
boilers installed prior to November 29, 1969. These boilers are fueled by natural gas, diesel, #2 Fuel Oil,
JP-4, JP-5, JP-6, JP-8, JP-10, and/or Jet A, or equivalent fuels as determined by the Director. All the
boilers pre-date 40 CFR 60, Subpart Dc. Some of the boilers are subject to 40 CFR 63 Subpart DDDDD
and are a subset of Unit 66 NESHAP Existing Boilers and Process Heaters.

II.A.37 Waste Solvent Reclamation Units
Unit 40 Description: Waste solvent reclamation stand alone units located throughout the base.

II.A.38 Basewide Gasoline Stations and Transfer Operations
Unit 41 Description: Various gasoline storage tanks equipped with submerged-fill equipment and vapor
return line. Various gasoline transporting vehicles operating at the base.

II.A.39 Melt Furnaces in Building 507
Unit 42 Description: One 2.5 MMBtu/hr and two 0.350 MMBtu/hr natural gas-fired melt furnaces.

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II.A.40 Industrial Wastewater Treatment Plant (IWTP)
Unit 48 Description: The IWTP has two packed-bed air stripper towers used to remove VOC and H2S
from wastewater. VOC emissions from the air streams are controlled by carbon adsorption. Only one air
stripper operates at any one time. Unit also includes a steam heated, no combustion, sludge dryer for
dewatering. A wet scrubber controls particulate emissions from the sludge dryer.

II.A.41 Landfill
Unit 49 Description: Construction and demolition landfill not subject to NSPS or NESHAP. No unit-
specific applicable requirements.

II.A.42 Air Handlers
Unit 50 Description: Natural gas-fired air handlers with Low NOx burners located throughout the base.
Each unit is rated at greater than or equal to 5 MMBtu/hr and less than or equal to 20 MMBtu/hr. If
indirect-fired, the air handlers are subject to 40 CFR 63 Subpart DDDDD and are a subset of Unit 66
NESHAP Existing Boilers and Process Heaters or Unit 67 NESHAP New/Reconst Boilers and Process
Heaters.

II.A.43 Landfill Gas Fired Power Generation Facility
Unit 51 Description: Landfill gas fueled power generation station consisting of one 814 bhp, one 1148
bhp, and one 1350 bhp lean burn engines powering one 590 KW, one 790 KW, and one 975 KW
generator, respectively. Only natural gas or landfill gas shall be used as fuel in the generators. The
engines are subject to 40 CFR 63 Subpart ZZZZ. The 1350 bhp engine is also subject to 40 CFR 60
Subpart JJJJ.

II.A.44 Fuel Storage Tanks
Unit 52 Description: Unit includes: Thirty-five diesel, gasoline and jet fuel above ground and underground
storage tanks, each ≥19,812 gallons specifically identified in the reviewer comments; various underground
and aboveground flex fuel storage tanks (each ≥500 gal and <19,812 gal) and small fuel storage tanks
(each <500 gal) containing diesel fuel, gasoline or Jet A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene, or
equivalent fuels as determined by the Director; and associated fuel dispensing and loading equipment.
Fuel storage tanks are located throughout the base. The small fuel storage tanks have no unit-specific
applicable requirements. Some gasoline fuel storage tanks in Unit 52 may also be a subset of Unit 41
Basewide Gasoline Station and Transfer Operations. Fuel storage tanks included in Unit 24 Aircraft
Fuel/Distillation Systems are not a subset of Unit 52.

II.A.45 Plasma Cutting Booth and Baghouse in Building 507
Unit 53 Description: A plasma cutting booth and baghouse for the demilitarization of aircraft landing gear
parts.

II.A.46 NSPS Compression Ignition Internal Combustion Eng
Unit 55 Description: Stationary emergency and non-emergency compression ignition (CI) internal
combustion engines (ICE) not covered by national security exemption under 60.4200(d) or classified as
temporary replacement units under 40 CFR 60.4200(e) that are ordered, modified, or reconstructed after
July 11, 2005, excluding those ordered that are manufactured before either April 1, 2006, or July 1, 2006
(certified as NFPA fire pump engines only). These units are located throughout the base.

II.A.47 NSPS CI ICE Non Fire Pump Engines
Unit 56 Description: Stationary emergency and non-emergency CI ICE as defined under Unit 55 that are
not certified as NFPA fire pump engines. These units are located throughout the base.

16
II.A.48 NSPS CI ICE Emergency Fire Pump Engines
Unit 57 Description: Stationary emergency CI ICE as defined under Unit 55 that are certified as NFPA
fire pump engines. These units are located throughout the base.

II.A.49 NSPS SI Emergency Internal Combustion Engines
Unit 58 Description: Stationary emergency spark ignition (SI) ICE, except those covered by national
security exemption under 40 CFR 60.4230(e) or classified as temporary replacement units under 40 CFR
60.4230(f), that are ordered, modified, or reconstructed after June 12, 2006. These units are subject to 40
CFR 60 Subpart JJJJ located throughout the base.

II.A.50 NESHAP Existing CI Emergency RICE <= 500 Hp
Unit 60 Description: Existing stationary emergency CI reciprocating internal combustion engines (RICE)
with a site rating less than or equal to 500 brake HP that are not covered by national security exemption
under 40 CFR 63.6585(e), and that commenced construction or reconstruction before June 12, 2006.
These units are subject to 40 CFR 63 Subpart ZZZZ and are located throughout the base.

II.A.51 NESHAP New CI Emergency RICE > 500 Hp
Unit 61 Description: New stationary emergency CI RICE with a site rating greater than 500 brake HP that
are not covered by national security exemption under 40 CFR 63.6585(e), and that commenced
construction or reconstruction on or after December 19, 2002. These units are subject to 40 CFR 63
Subpart ZZZZ and are located throughout the base.

II.A.52 NESHAP New SI Emergency RICE > 500 Hp
Unit 62 Description: New stationary emergency SI RICE with a site rating greater than 500 brake HP that
are not covered by national security exemption under 40 CFR 63.6585(e), and that commenced
construction or reconstruction on or after December 19, 2002. These units are subject to 40 CFR 63
Subpart ZZZZ and are located throughout the base.

II.A.53 NESHAP Existing SI Emergency RICE <= 500 Hp
Unit 63 Description: Existing stationary emergency SI RICE with a site rating less than or equal to 500
brake HP that are not covered by national security exemption under 40 CFR 63.6585(e), and that
commenced construction or reconstruction before June 12, 2006. These units are subject to 40 CFR 63
Subpart ZZZZ and are located throughout the base.

II.A.54 Integrated Basewide Shredding System
Unit 64 Description: Portable shear shredder and a 350 kW (470 HP) non-emergency diesel-fired CI
RICE. Unit will be used to shred different materials throughout the base. The engine is subject to 40 CFR
63 Subpart ZZZZ and 40 CFR 60 Subpart IIII.

II.A.55 NESHAP Existing Boilers and Process Heaters
Unit 66 Description: Gas 1-fired boilers and process heaters that are not new or reconstructed. The
affected emission unit is each existing industrial, commercial, or institutional boiler or process heater as
defined in 40 CFR 63 Subpart DDDDD. These units are located throughout the base. Hot water heaters,
temporary boilers and process heaters, and residential boilers as defined in 40 CFR 63 Subpart DDDDD
are not affected emission units.

II.A.56 NESHAP New/Reconst Boilers and Process Heaters
Unit 67 Description: Gas 1-fired boilers and process heaters that commence construction or
reconstruction after June 4, 2010. The affected emission unit is each new or reconstructed industrial,
commercial, or institutional boiler or process heater as defined in 40 CFR 63 Subpart DDDDD. These

17
units are located throughout the base. Hot water heaters, temporary boilers and process heaters, and
residential boilers as defined in 40 CFR 63 Subpart DDDDD are not affected emission units.

II.A.57 Adhesives and Sealants
Unit 68 Description: This unit includes the base-wide sale, supply, or application of any adhesive, sealant,
adhesive primer or sealant primer manufactured on or after September 1, 2014. These operations occur at
various locations throughout the base and are a subset of Unit 26 Surface Coating Operation Group.

II.A.58 Architectural Coatings
Unit 69 Description: This unit includes the base-wide supply, sale, offer for sale, application, or
solicitation for application of any architectural coating, or the blending, or repackaging of any
architectural coating for use within Box Elder, Cache, Davis, Salt Lake, Tooele, Utah, and Weber
counties.

II.A.59 SIP Section IX, Part H Boilers
Unit 71 Description: This unit includes all boilers rated at greater than or equal to 5 MMBtu/hr base-wide.
The boilers are subsets of Unit 36 Aggregated Boiler Group, Unit 37 NSPS Boilers, Unit 38 Used Oil
Boiler in Building 1703 and Unit 39 Grandfathered Boilers.

II.A.60 Firefighting Training Facility
Unit 72 Description: The firefighting training facility includes associated operations used for training
personnel to respond to aircraft, structural, and automobile fires.

II.A.61 Non-destructive Inspection (NDI) Process
Unit 73 Description: The NDI is an automated and manual fluorescent penetrant system used to inspect
aircraft parts for cracks and defects. Parts are sprayed with penetrant in an enclosed station by either
automated or manual methods. One 700-gal dip tank is used to apply emulsifier to parts. One additional
700-gal dip tank is used to apply developer (non-VOC) to parts. The developer station also includes one
100-gal mixing tank. These operations occur in Building 507 and are a subset of Unit 26 Surface Coating
Operation Group.

Status: In compliance – No unapproved equipment was noted at time of the inspection. The old booth is
currently being replaced with a new powder wire booth (item II.A.10). Temporary Approval Letters
have been submitted regarding the three rental boilers (building 260) that started operations on
September 14, 2024. The old #3 burn-out oven has been replaced with a new burn-out oven (item
II.A.19). Removed all boilers, but 4 (item II.A.33). The Seven old boiler have been replaced with new
Low NOx boilers (item II.A.34). The used oil boiler (item II.A.35) and the Grandfathered boilers
(item II.A.36) have been removed. Next, underground fuel storage tanks (item II.A.44) have been
removed. The three approved above ground fuel tanks have not been constructed to date . Finally,
one of the three approved CI emergency generators > 500 Hp (item II.A.51) has been installed and
is operating.

II.B Requirements and Limitations

The following emission limitations, standards, and operational limitations apply to the permitted facility
as indicated:

II.B.1 Conditions on permitted source (Source-wide).

II.B.1.a Condition:

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Sulfur content of any fuel oil combusted shall be no greater than 0.85 pounds sulfur per MMBtu gross
heat input unless otherwise specified in this permit. [Origin: R307-203-1(1)]. [R307-203-1(1)]

II.B.1.a.1 Monitoring:

For each delivery of oil, the permittee shall either:
(1) Determine the fuel sulfur content expressed as lb/MMBtu in accordance with the methods of
the American Society for Testing Materials (ASTM) and Equation 1;
(2) Inspect the fuel sulfur content expressed as lb/MMBtu determined by the vendor using
methods of the ASTM and Equation 1; or
(3) Inspect documentation provided by the vendor that indirectly demonstrates compliance with
this provision.

Equation 1:
Fuel Sulfur Content, lb/MMBtu = [(Weight percent sulfur/100) x Density (lb/gal)] / [(gross
heating value (Btu/gal)) x (1 MMBtu/1,000,000 Btu)].

II.B.1.a.2 Recordkeeping:

The records required for monitoring shall be maintained as described by Provision S.1 in Section I
of this permit.

II.B.1.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB complies with item 3 above. Defense Logistic Agency (DLA) invoices
indicated that Diesel #2 is combusted on base.

II.B.1.b Condition:

At all times, including periods of startup, shutdown, and malfunction, the permittee shall, to the extent
practicable, maintain and operate any permitted plant equipment, including associated air pollution control
equipment, in a manner consistent with good air pollution control practice for minimizing emissions.
Determination of whether acceptable operating and maintenance procedures are being used will be based
on information available to the Director which may include, but is not limited to, monitoring results,
opacity observations, review of operating and maintenance procedures, and inspection of the source.
[Origin: 40 CFR 60.11(d)]. [40 CFR 60.11(d), R307-401-8(2)]

II.B.1.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.1.b.2 Recordkeeping:

Permittee shall document activities performed to assure proper operation and maintenance.
Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.1.b.3 Reporting:

19
There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Contractors and HAFB conducts base maintenance. There are
maintenance shops throughout the base. The Air Program Information Management
System (APIMS) and Facility Equipment Maintenance System (FEMS) are used to track
contractors and HAFB maintenance.

II.B.1.c Condition:

The permittee shall comply with the applicable requirements for servicing of motor vehicle air
conditioners pursuant to 40 CFR 82, Subpart B - Servicing of Motor Vehicle Air Conditioners. [Origin:
40 CFR 82 Subpart B]. [40 CFR 82.30(b)]

II.B.1.c.1 Monitoring:

The permittee shall certify, in the annual compliance statement required in Section I of this
permit, its compliance status with the requirements of 40 CFR 82, Subpart B.

II.B.1.c.2 Recordkeeping:

All records required in 40 CFR 82, Subpart B shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.1.c.3 Reporting:

All reports required in 40 CFR 82, Subpart B shall be submitted as required. There are no
additional reporting requirements except as specified in Section I of this permit.

Status: In compliance – HAFB certifies compliance with this condition in their annual compliance
certification report.

II.B.1.d Condition:

The permittee shall comply with the applicable requirements for recycling and emission reduction for
class I and class II refrigerants and their substitutes pursuant to 40 CFR 82, Subpart F - Recycling and
Emissions Reduction. [Origin: 40 CFR 82 Subpart F]. [40 CFR 82.150(b)]

II.B.1.d.1 Monitoring:

The permittee shall certify, in the annual compliance statement required in Section I of this
permit, its compliance status with the requirements of 40 CFR 82, Subpart F.

II.B.1.d.2 Recordkeeping:

All records required in 40 CFR 82, Subpart F shall be maintained consistent with the requirements
of Provision S.1 in Section I of this permit.

II.B.1.d.3 Reporting:

20
All reports required in 40 CFR 82, Subpart F shall be submitted as required. There are no
additional reporting requirements except as specified in Section I of this permit.

Status: In compliance – HAFB certifies compliance with this condition in their annual compliance
certification report.

II.B.1.e Condition:

Visible emissions shall be no greater than 20 percent opacity for affected emission units, unless otherwise
specified in this permit or R307-305-3(4). [Origin: R307-305-3]. [R307-305-3(1)]

II.B.1.e.1 Monitoring:

Unless otherwise specified, a visual opacity survey of each affected emission unit shall be
performed on a quarterly basis while the unit is operating. The visual opacity survey shall be
performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A,
Method 9. If visible emissions other than condensed water vapor are observed from an emission
unit, an opacity determination of that emission unit shall be performed by a certified observer
within 24 hours of the initial survey. The opacity determination shall be performed in accordance
with 40 CFR 60, Appendix A, Method 9.

The permittee is not required to perform quarterly surveys on sources that do not have the
potential to generate opacity (no-opacity sources) such as combustion sources operating on natural
gas or propane, petroleum storage tanks, paint booths, fuel/oil purge system, and solvent cleaning
units. For these no-opacity sources, proper documentation of natural gas / propane use, tank
content, or solvent use shall be maintained in accordance with the requirements of Provisions S.1
in Section I of this permit.

II.B.1.e.2 Recordkeeping:

Results of monitoring shall be maintained as described in Provision I.S.1 of this permit as well as
in 40 CFR 60 Appendix A, Method 9.

II.B.1.e.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Visual surveys are completed at least quarterly for emission units (EU) that
do not have a specific emission limit in another condition of this permit. This condition
limits grandfathered sources to 20% opacity, including: the grandfathered Metal Flame
Booths in Bldg. 551 (AQUIS 3355, 3380, 3382, 3387, 3391 and 3686). Review of opacity
survey log sheets confirm compliance with this condition. Method 9 sheets are maintained
when Method 9 opacity observations are required. Standtec conducts oversight inspections
of visible emission observations (VEOs) which are tracked in APIMS.

II.B.1.f Condition:

The permittee shall comply with the applicable requirements for emission reduction for halons pursuant to
40 CFR 82, Subpart H, Halon Emission Reduction. [Origin: 40 CFR 82 Subpart H]. [40 CFR 82.250(b)]

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II.B.1.f.1 Monitoring:

The permittee shall certify, in the annual compliance statement required in Section I of this
permit, its compliance status with the requirements of 40 CFR 82, Subpart H.

II.B.1.f.2 Recordkeeping:

All records required in 40 CFR 82, Subpart H shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.1.f.3 Reporting:

All reports required in 40 CFR 82, Subpart H shall be submitted as required. There are no
additional reporting requirements except as specified in Section I of this permit.

Status: In compliance – HAFB certifies compliance with this condition in their annual compliance
certification report and records.

II.B.1.g Condition:

Visible emissions caused by fugitive dust shall not exceed 10% at the property boundary, and 20% onsite.
Opacity shall not apply when the wind speed exceeds 25 miles per hour if the permittee has implemented,
and continues to implement, the accepted fugitive dust control plan and administers one or more of the
following contingency measures:
(1) Pre-event watering;
(2) Hourly watering;
(3) Additional chemical stabilization;
(4) Cease or reduce fugitive dust producing operations to the extent practicable.
[Origin: R307-309]. [R307-309-5]

II.B.1.g.1 Monitoring:

In lieu of monitoring via visible emissions observations, adherence to the most recently approved
fugitive dust control plan shall be monitored to demonstrate that appropriate measures are being
implemented to control fugitive dust.

II.B.1.g.2 Recordkeeping:

If wind speeds are measured to establish an exception from the above visible emissions limits,
records of the administered contingency measures and the wind speed measurements shall be
maintained. Wind speed shall be measured by an anemometer. Records required by the most
recently approved fugitive dust control plan shall be maintained in accordance with the plan and
section I.S.1 of this permit.

II.B.1.g.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The most recent fugitive dust plan (FDCP) is dated July 2020. HAFB
ceases any operation that generated excessive fugitive dust. No fugitive dust was observed

22
at time of the inspection. Standtec conducts oversight inspections of fugitive dust base wide.
See status of condition II.B.1.i.

II.B.1.h Condition:

i) If the permittee is responsible for construction or maintenance of any existing road or has right-of-
way easement or possesses the right to use the same whose activities result in fugitive dust from the
road, the permittee shall minimize fugitive dust to the maximum extent possible. If materials are
deposited that may create fugitive dust on a public or private paved road, the permittee shall clean the
road promptly.
ii) Unpaved Roads. If the permittee is responsible for construction or maintenance of any new or existing
unpaved road, the permittee shall prevent, to the maximum extent possible, the deposit of material
from the unpaved road onto any intersecting paved road during construction or maintenance. If
materials are deposited that may create fugitive dust on a public or private paved road, the permittee
shall clean the road promptly.
[Origin: R307-309]. [R307-309-9]

II.B.1.h.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.1.h.2 Recordkeeping:

Records that demonstrate compliance with this condition and records required by the most
recently approved fugitive dust control plan shall be maintained in accordance with the plan and
section I.S.1 of this permit.

II.B.1.h.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – No track-outs were observed at time of the inspection. Track-out records
are maintained according to the most recent FDCP. Monthly inspections are conducted of
base wide construction sites, according to the Stormwater Program.

II.B.1.i Condition:

The permittee shall implement a fugitive dust control plan that has been approved by the Director.
Activities regulated by R307-309 shall not commence before the fugitive dust control plan is approved by
the director. If site modifications result in emission changes, the permittee shall submit an updated
fugitive dust control plan. At a minimum, a fugitive dust control plan shall include the requirements in
R307-309-6(4), as applicable. The fugitive dust control plan shall include contact information, site
address, total area of disturbance, expected start and completion dates, identification of dust suppressant
and plan certification by signature of a responsible person. [Origin: R307-309]. [R307-309-6]

II.B.1.i.1 Monitoring:

Adherence to the most recently approved fugitive dust control plan shall be monitored to
demonstrate that appropriate measures are being implemented to control fugitive dust.

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II.B.1.i.2 Recordkeeping:

Records demonstrating compliance and records required by the most recently approved fugitive
dust control plan shall be maintained in accordance with the plan and section I.S.1 of this permit.
These records shall be available to the director upon request.

II.B.1.i.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The most recent FDCP is dated July 2020. HAFB ceases any operation that
generated excessive fugitive dust. No fugitive dust was observed at time of the inspection.
Standtec conducts oversight inspections of fugitive dust base wide. See status of condition
II.B.1.g.

II.B.1.j Condition:

Land managers shall not conduct prescribed burning or pile burning when the clearing index is below 500
until the Director approves the application required in the reporting condition.
[Origin: R307-240]. [R307-240-4(2)]

II.B.1.j.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.1.j.2 Recordkeeping:

Records of Director approvals, the clearing index at the time of ignition, and records
demonstrating compliance with this condition shall be maintained in accordance with Provision
I.S.1 of this permit.

II.B.1.j.3 Reporting:

Land managers who request a burn permit when the clearing index is below 500 shall submit to the
Director an application that demonstrates that the conditions in Subsections 19-2a-105(3) through 19-
2a-105(5) are met. (R307-240-4(1))

To ensure proper credit when notifying the Director, send the documentation to the Director, attn.:
Smoke Coordinator. There are no additional reporting requirements for this provision except
those specified in Section I of this permit.

Status: In compliance – HAFB’s Fire Chief complies with the State’s Open Burn Rules.

II.B.2 Conditions on Non-chemical Depainting General Requirements (Unit #1).

II.B.2.a Condition:

The throughput of media shall not exceed 2,350 tons per rolling 12-month period from externally vented
abrasive cleaning and non-chemical depainting at HAFB and Little Mountain. [Origin: DAQE-
AN0121167-04]. [R307-401-8]

24

II.B.2.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.2.a.2 Recordkeeping:

The quantity of media added and date shall be recorded each time blasting media is added to
externally vented abrasive cleaning equipment. These records can utilize purchase records,
operation logs, and/or inventory records as a basis to determine blasting media throughput. By
the 30th day of each month (28th for February), the permittee shall calculate a new 12-month
total, using the throughput data from the previous 12 months. The records required by this
condition may be kept in electronic form and shall be maintained in accordance with Provision
I.S.1 of this permit.

II.B.2.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Non-chemical depainting media throughput was 153 tons as of July 31,
2024.

II.B.2.b Condition:

Flexibility Provisions - HAFB is allowed to add or modify any blasting equipment at the Main Base or
Little Mountain, provided that each of the following conditions are met:
1. The proposed addition or modification does not cause an increase in the currently established base-
wide (including Little Mountain) allowable PM10 and HAP emissions limit of 1.62 tons per rolling 12
month total of PM10 and 0.0063 tons per rolling 12 month total of combined HAP's.
2. The new or modified installation or piece of equipment must meet the corresponding Pre-Approved
BACT determination provided in Appendix 1 of the cited approval order. If new BACT for this type
of process is established, DAQ has the right to re-open the cited approval order to change BACT for
this process accordingly.
[Origin: DAQE-AN0121167-04]. [R307-401-8]

II.B.2.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.2.b.2 Recordkeeping:

Records of the notifications required by this condition shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.2.b.3 Reporting:

In addition to the reporting requirements in Section I of this permit, the permittee shall provide the
following notifications.
1. Notification of new equipment installation must be submitted to DAQ seven days prior to such
installation. Relocation or removal of equipment which does not involve a modification

25
(increase in emissions or installation of new air pollution control equipment) will not require
prior notification. Notification shall include equipment size, type, location, whether it is
applicable to federal standards, conformity with BACT Standards, estimated emissions,
impact of estimated emissions from equipment to the emissions limit in this permit.
2. A copy of any pertinent testing protocols, as required by the Pre-Approved BACT (i.e., initial
compliance testing for new pollution control equipment) must be included with the
notification. Where applicable, initial compliance testing must be performed within 180 days
of the start up of the new emission source.
3. Hill shall generate a list of all operating blasting equipment (equipment list) that is subject to
state and federal rules within three working days upon request from a representative of the
director. This equipment list shall contain abrasive blasting equipment type, NESHAP's
applicability, location and equipment identification numbers.

Status: In compliance – Notifications for any flexibility provision, which include emission limits,
BACT and equipment lists, are submitted and reviewed by NSR. PM10 emissions were
0.00326 tons and HAP emissions were 0.0000492 tons as of July 31, 2024.

II.B.3 Conditions on Non-chemical Depainting Subject to A-NESHAP (Unit #2).

II.B.3.a Condition:

Visible emissions from abrasive blasting operations subject to the Aerospace NESHAP shall not exceed
40 percent opacity, except for an aggregate period of three minutes in any one-hour period. The abrasive
blasting operations shall use confined blasting. [Origin: R307-306, DAQE-AN0121167-04]. [R307-306-
4(2), R307-306-6]

II.B.3.a.1 Monitoring:

Once per month the permittee shall apply one of the following monitoring techniques to each
affected emission unit:

A. A visual opacity survey conducted by an individual trained on the observation procedures of
40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor are
observed from an emission unit, an opacity determination of that emission unit shall be
performed by a certified observer within 24 hours of the initial survey. The opacity
determination shall be performed in accordance with 40 CFR 60, Appendix A, Method 9 and
in accordance with the following provision:
1. Emissions from confined blasting shall be read at the densest point after the air
contaminant leaves the enclosure by a certified Method 9 observer within 24 hours of the
initial visual emission observation.
B. A photogrametric opacity determination shall be conducted by an individual trained on the
observation procedures of 40 CFR 60, Appendix A, Method 9 while the blasting operation is
occurring. If an opacity of 15 percent or more is detected by the photogrametric analysis, an
opacity determination of that emission point shall be performed by a certified observer in
accordance with 40 CFR 60, Appendix A, Method 9 within 24 hours of the initial survey and
in accordance with the following provision:
1. Emissions from confined blasting shall be read at the densest point after the air
contaminant leaves the enclosure by a certified Method 9 observer within 24 hours of the
initial visual emission observation.

26
Either of the above monitoring techniques may be applied to different affected emission units or
to a given affected emission unit from month to month.

II.B.3.a.2 Recordkeeping:

The permittee shall maintain a log of visual opacity surveys and/or photogrametric observations
which include the following information for each affected emission points checked: the date and
time of each visual opacity survey or photogrametric observation, the specific monitoring
technique used (opacity survey or photogrametric observation) and the result of the opacity
monitoring. The records required by this provision and all data required by EPA Method 9 shall
be maintained in accordance with Provision I.S.1 of this permit.

II.B.3.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB complies with item A. above, by performing monthly visual opacity
surveys. Records of monthly observations are kept.

II.B.3.b Condition:

(1) Each aerospace depainting operation subject to this condition shall emit no organic HAP from
chemical stripping formulations and agents or chemical paint softeners, except as provided in
paragraph (2) below and 40 CFR 63.746(b)(3) (see Aerospace NESHAP Chemical Depainting
condition in this permit):
(2) Where non-chemical based equipment is used to comply with paragraph (1), either in total or in part,
the permittee shall operate and maintain the equipment according to the manufacturer's specifications
or locally prepared operating procedures. During periods of malfunctions of such equipment, the
permittee may use substitute materials during the repair period provided the substitute materials used
are those available that minimize organic HAP emissions. In no event shall substitute materials be
used for more than 15 days annually, unless such materials are organic HAP-free.
(3) The permittee shall comply with the following requirements for each non-chemical depainting
operation that generates airborne inorganic HAP emissions from dry media blasting equipment, as
specified in 40 CFR 63.746(b)(4)(i) through (b)(4)(v):
(i) Perform the depainting operation in an enclosed area, unless a closed-cycle depainting system is
used.
(ii) Pass any air stream removed from the enclosed area or closed-cycle depainting system through a
dry particulate filter system, certified using the method described in 40 CFR 63.750(o) to meet
or exceed the efficiency data points in Tables 2 and 3 of 40 CFR 63.745, or through a baghouse
before exhausting it to the atmosphere.
(iii) If a dry particulate filter system is used, the following requirements shall be met:
(A) Maintain the system in good working order;
(B) Install a differential pressure gauge across the filter banks;
(C) Continuously monitor the pressure drop across the filter; and
(D) Take corrective action when the pressure drop exceeds or falls below the filter
manufacturer's recommended limits.
(iv) If the pressure drop, as recorded pursuant to 40 CFR 63.752(e)(7), is outside the limit(s)
specified by the filter manufacturer or in locally prepared operating procedures, whichever is
more stringent, shut down the operation immediately and take corrective action. If the booth
manufacturer's or locally prepared maintenance procedures for the filter have not been

27
performed as scheduled, shut down the operation immediately and take corrective action. The
operation shall not be resumed until the pressure drop is returned within the specified limit(s).
In accordance with 40 CFR 63.746(b)(5), mechanical and hand sanding operations are exempt from the
requirements listed in paragraph (3) above.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0121167-04, DAQE-AN101210232-13, DAQE-
AN101210284-22]. [40 CFR 63.746(b)]

II.B.3.b.1 Monitoring:

(a) For affected emission units that generate airborne inorganic HAP emissions from dry media
blasting equipment, the permittee shall comply with the following requirements as specified
in 40 CFR 63.746(b)(4)(v) and 40 CFR 63.751(d).

If a dry particulate filter system is used to meet the requirements of this permit condition, the
permittee shall install a differential pressure gauge across the filter banks and, while non-
chemical depainting operations are occurring, continuously monitor the pressure drop across
the particulate filters. The permittee shall read and record the pressure drop once per shift in
accordance with the recordkeeping requirements of 40 CFR 63.752(e).

If the pressure drop, as recorded pursuant to 40 CFR 63.752(e)(7), is outside the limit(s)
specified by the filter manufacturer or in locally prepared operating procedures, whichever is
more stringent, the permittee shall shut down the operation immediately and take corrective
action.

If the recommended maintenance procedures for the filter system have not been performed as
scheduled, the permittee shall shut down the operation immediately and take corrective
action. The operation shall not be resumed until the pressure drop is returned within the
specified limit(s).

(b) Records required for this permit condition will also serve as monitoring.

II.B.3.b.2 Recordkeeping:

For affected emission units subject to the depainting standards specified in 40 CFR 63.746, the
permittee shall record the following information, as appropriate, in accordance with paragraphs
(e)(4), (e)(5), and (e)(7) of 40 CFR 63.752:

(1) For each type of aircraft depainted at the facility, a listing of the parts, subassemblies, and
assemblies normally removed from the aircraft before depainting. Prototype, test model or
aircraft that exist in low numbers (i.e., less than 25 aircraft of any one type) are exempt from
this requirement.
(2) For all emission units using non-chemical based equipment, including dry media blasting
equipment, to comply with the organic HAP emission limit specified in 40 CFR
63.746(b)(1):
(i) The names and types of non-chemical based equipment; and
(ii) For periods of malfunction,
(A) The non-chemical method or technique that malfunctioned;
(B) The date that the malfunction occurred;
(C) A description of the malfunction;
(D) The methods used to depaint aerospace vehicles during the malfunction period;
(E) The dates that these methods were begun and discontinued; and

28
(F) The date that the malfunction was corrected.
(3) If dry media blasting equipment is used, the permittee shall record the actual pressure drop
across the filters of the dry particulate filter system once each shift in which the depainting
process is in operation. This log shall include the acceptable limit(s) of the pressure drop as
specified by the filter manufacturer or in locally prepared operating procedures.

For laser depainting only, the permittee shall record the following additional information:
(1) For periods of malfunction, the name of substitute materials, if they are used during the repair
period, and documentation that the substitute materials minimize organic HAP emissions;
and
(2) The permittee shall keep records of the manufacturer's specifications for operating and
maintaining the equipment or locally prepared operating procedures.

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected sources
or equipment, an estimate of the quantity of each regulated pollutant emitted over any
emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.3.b.3 Reporting:

(1) The permittee shall submit semiannual reports occurring every 6 months from the date of the
notification of compliance status that identify:
(i) Any new non-chemical depainting technique in use at the base since the notification of
compliance status or any subsequent semiannual report was filed;
(ii) For periods of malfunctions:
(A) The non-chemical method or technique that malfunctioned;
(B) The date that the malfunction occurred;
(C) A description of the malfunction;
(D) The methods used to depaint aerospace vehicles during the malfunction period;
(E) The dates that these methods were begun and discontinued; and
(F) The date that the malfunction was corrected;
(iii) All periods where a non-chemical depainting operation subject to 40 CFR 63.746(b)(2)
and (b)(4) for the control of inorganic HAP emissions was not immediately shut down
when the pressure drop or recommended booth parameter(s) was outside the limit(s)
specified by the filter or booth manufacturer or in locally prepared operational
procedures;
(iv) A list of new and discontinued aircraft models depainted at the base over the last 6
months and a list of the parts normally removed for depainting for each new aircraft
model being depainted; and
(v) If the depainting operation has been in compliance for the semiannual period, a
statement signed by a responsible company official that the depainting operation was in
compliance with the applicable standards. The semiannual report shall also include a

29
statement of compliance signed by a responsible company official certifying that the
facility is in compliance with all applicable requirements.
Semiannual compliance reports for each type of operation subject to Subpart GG (i.e.
cleaning, primer and topcoat application, depainting, chemical milling maskant application)
can be combined into a single semiannual compliance report.
(2) The permittee shall submit annual reports occurring every 12 months from the date of the
notification of compliance status that identify:
(i) The number of times the pressure drop limit(s) for each filter system were outside the
limit(s) specified by the filter or booth manufacturer or in locally prepared operating
procedures.

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – All dry media blasting is performed in an enclosed area and sent to
baghouses. Thus, none of the monitoring requirements apply. No substitute materials were
used in 2023 or 2024. The only applicable requirement is to perform an opacity observation
on baghouse stacks. Records are maintained and the semi-annual and annual reports are
submitted. The annual report requirements are listed within each semi-annual report.

II.B.3.c Condition:

Visible emissions shall be no greater than 10 percent opacity from the following laser depainting
processes: LADS II, building 576, building 275, building 269, building 220. [Origin: DAQE-
AN101210232-13]. [R307-401-8]

II.B.3.c.1 Monitoring:

A visual opacity survey of each affected emission unit shall be performed once each month when
the unit operates, by an individual trained on the observation procedures of 40 CFR 60, Appendix
A, Method 9. The individual is not required to be a certified visible emissions observer. If any
visible emissions are observed, an opacity determination of that emission unit shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method 9.

II.B.3.c.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall also keep a log of the
following information for each observed visual emission: date and time visual emissions
observed, emission point location and description, time and date of opacity test, and percent
opacity. The records required by this provision and all data required by 40 CFR 60, Appendix A,
Method 9 shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.3.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Logbooks for opacity monitoring are maintained in each building and are
maintained by Environmental Representatives (ERs) for various branches. The records are
produced and/or compiled by Unit Environmental Coordinators (UECs) in each facility.

30
Oversight of the ERs and UECs is done by the Base Environmental staff and Standtec .
Standtec can verify that the stationary lasers (LADs II) are currently in-active. Portable or
handheld lasers are currently used in building 843 and 586. APIMS is used to track VEO
records which was available for review at time of inspection.

II.B.3.d Condition:

Visible emissions from the dust collector on the polishing/grinding process in the E&I Shop shall be no
greater than 10 percent opacity. [Origin: DAQE-AN101210216-11]. [R307-401-8]

II.B.3.d.1 Monitoring:

An opacity survey of each affected emission unit shall be performed once each month when the
unit operates, by an individual trained on the observation procedures of 40 CFR 60, Appendix A,
Method 9. The individual is not required to be a certified visible emissions observer. If any
visible emissions are observed, an opacity determination of that emission unit shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method 9.

II.B.3.d.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall also keep a log of the
following information for each opacity determination: date and time visual emissions observed,
emission point location and description, time and date of opacity test, and percent opacity. The
records required by this provision and all data required by 40 CFR 60, Appendix A, Method 9
shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.3.d.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Logbooks for opacity monitoring are maintained in each building and are
maintained by Environmental Representatives (ERs) for various branches. The records are
produced and/or compiled by Unit Environmental Coordinators (UEC’s) in each facility.
UEC’s conduct monthly inspections. Annual oversight of the ERs and UEC’s is done by the
Base Environmental staff and Standtec. APIMS is used to track VEO records which was
available for review at time of inspection.

II.B.3.e Condition:

At all times, the permittee shall operate and maintain any affected source, including associated air
pollution control equipment and monitoring equipment, in a manner consistent with safety and good air
pollution control practices for minimizing emissions. The general duty to minimize emissions does not
require the permittee to make any further efforts to reduce emissions if levels required by the applicable
standard have been achieved. Determination of whether a source is operating in compliance with
operation and maintenance requirements will be based on information available to the Director which may
include, but is not limited to, monitoring results, review of operation and maintenance procedures, review
of operation and maintenance records, and inspection of the source.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.743(e)]

31
II.B.3.e.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.3.e.2 Recordkeeping:

The permittee shall document activities performed to assure proper operation and maintenance.
The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected sources
or equipment, an estimate of the quantity of each regulated pollutant emitted over any
emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.3.e.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB documents activities to confirm compliance. The 2023 and 2024
semi-annual reports have documented that there have been no failures to meet applicable
standards. Records of maintenance are kept on-site. Maintenance is also tracked in FEMS,
which receives an oversight review on a monthly basis.

II.B.3.f Condition:

Visible emissions from the sanding room dust collector (DC-1), vacuum system dust collectors (DC-2,
DC-3, DC-7), and sanding room exhaust filter system (DC-6) shall be no greater than 10 percent opacity.
[Origin: DAQE-AN101210284-22]. [R307-401-8]

II.B.3.f.1 Monitoring:

A visual opacity survey of each affected emission unit shall be performed once each month when
the unit operates, by an individual trained on the observation procedures of 40 CFR 60, Appendix
A, Method 9. The individual is not required to be a certified visible emissions observer. If any
visible emissions are observed, an opacity determination of that emission unit shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method 9.

II.B.3.f.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall also keep a log of the
following information for each opacity determination: date and time visual emissions observed,
emission point location and description, time and date of opacity test, and percent opacity. The

32
records required by this provision and all data required by 40 CFR 60, Appendix A, Method 9
shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.3.f.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Logbooks for opacity monitoring are maintained in each building and are
maintained by Environmental Representatives (ERs) for various branches. The records are
produced and/or compiled by Unit Environmental Coordinators (UEC’s) in each facility.
UEC’s conduct monthly inspections. Annual oversight of the ERs and UEC’s is done by the
Base Environmental staff and Standtec. APIMS is used to track VEO records which was
available for review at time of inspection.

II.B.3.g Condition:

The permittee shall notify the Director in writing when the installation of the building 275 laser depainting
system and building 220 laser depainting system has been completed and is operational. To ensure proper
credit when notifying the Director, send your correspondence to the Director, attn: Compliance Section.
[Origin: DAQE-AN101210232-13]. [R307-401-8]

II.B.3.g.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.3.g.2 Recordkeeping:

As applicable, the permittee shall maintain a copy of each notification required by this permit
condition in accordance with Provision I.S.1 of this permit.

II.B.3.g.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – A new Approval Order (AO) dated June 2022 was issued to HAFB. The AO
regards replacing LADS II with LADS III. According to HAFB, a construction installation
notice will be provided when the LADS III is operational. See status of condition II.B.3.c.

II.B.4 Conditions on Non-chemical Depainting not Subject to A-NESHAP (Unit #3).

II.B.4.a Condition:

(a) All non-NESHAP abrasive blasting operations shall comply with at least one of the following
performance standards:
(1) Confined blasting;
(2) Wet abrasive blasting;
(3) Hydroblasting; or
(4) Unconfined blasting using abrasives as defined in paragraph (b).

33
(b) Abrasives used for dry unconfined blasting referenced in paragraph (a)(4) above shall comply with
the following performance standards:
(1) Before blasting the abrasive shall not contain more than 1% by weight material passing a #70
U.S. Standard sieve.
(2) After blasting the abrasive shall not contain more than 1.8% by weight material 5 microns or
smaller.
(3) Abrasives reused for dry unconfined blasting are exempt from paragraph (b)(2), but must
conform with paragraph (b)(1).
(c) If using the performance standard of paragraph (a)(4), the permittee must demonstrate that the
abrasives were obtained from a supplier who has certified (submitted test results) to the Director at
least annually that such abrasives meet the requirements of paragraph (b) above.
[Origin: DAQE-AN0121167-04, R307-306-6]. [R307-306-6, R307-401-8]

II.B.4.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.4.a.2 Recordkeeping:

Documentation that demonstrates adherence to the performance standards of this condition shall
be maintained in accordance with Provision I.S.1 of this permit.

II.B.4.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Confined blasting is the performance standard used on base. Currently, no
unconfined blasting is allowed. APIMS is used to track abrasive blasting records which was
available for review at time of inspection.

II.B.4.b Condition:

Visible emissions shall be no greater than 10 percent opacity from any point or fugitive source associated
with non-NESHAP abrasive blasting operations. [Origin: DAQE-AN0121167-04, R307-306-4]. [R307-
401-8]

II.B.4.b.1 Monitoring:

Once per month the permittee shall apply the following monitoring technique to each affected
emission unit:

A visual opacity survey conducted by an individual trained on the observation procedures of 40
CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor are
observed from an emission unit, an opacity determination of that emission unit shall be performed
by a certified observer within 24 hours of the initial survey. The opacity determination shall be
performed in accordance with 40 CFR 60, Appendix A, Method 9 in accordance with the
following provisions:
(1) Visible emissions shall be measured using EPA Method 9. Visible emissions from
intermittent sources shall use procedures similar to Method 9, but the requirement for
observations to be made at 15 second intervals over a six-minute period shall not apply.

34
(2) Visible emissions from unconfined blasting shall be measured at the densest point of the
emission after a major portion of the spent abrasive has fallen out, at a point not less than five
feet nor more than twenty-five feet from the impact surface from any single abrasive blasting
nozzle.
(3) An unconfined blasting operation that uses multiple nozzles shall be considered a single
source unless it can be demonstrated by the permittee that each nozzle, measured separately,
meets the emission and performance standards provided in R307-306-4.
(4) Visible emissions from confined blasting shall be measured at the densest point after the air
pollutant leaves the enclosure.

II.B.4.b.2 Recordkeeping:

The permittee shall record the date of each visual survey. The permittee shall also keep a log of
the following information for each observed visual emission: date and time visual emissions
observed, emission point location and description, time and date of opacity determination, and
percent opacity. The records required by this provision and all data required by 40 CFR 60,
Appendix A, Method 9 shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.4.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Logbooks for opacity monitoring are maintained in each building and are
maintained by Environmental Representatives (ERs) for various branches. The records are
produced and/or compiled by Unit Environmental Coordinators (UEC’s) in each facility.
UEC’s conduct monthly inspections. Annual oversight of the ERs and UECs is done by the
Base Environmental staff and Standtec. APIMS is used to track abrasive blasting VEO
records which were available for review at time of inspection.

II.B.4.c Condition:

Visible emissions from the vacuum system dust collectors (DC-4, DC-5) shall be no greater than 10
percent opacity. [Origin: DAQE-AN101210247-17]. [R307-401-8]

II.B.4.c.1 Monitoring:

An opacity survey of each affected emission unit shall be performed once each month when the
unit operates, by an individual trained on the observation procedures of 40 CFR 60, Appendix A,
Method 9. The individual is not required to be a certified visible emissions observer. If any
visible emissions are observed, an opacity determination of that emission unit shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method 9.

II.B.4.c.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall also keep a log of the
following information for each opacity determination: date and time visual emissions observed,
emission point location and description, time and date of opacity test, and percent opacity. The
records required by this provision and all data required by 40 CFR 60, Appendix A, Method 9
shall be maintained in accordance with Provision I.S.1 of this permit.

35

II.B.4.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Logbooks for opacity monitoring are maintained in each building and are
maintained by Environmental Representatives (ERs) for various branches. The records are
produced and/or compiled by Unit Environmental Coordinators (UECs) in each facility.
UECs conduct monthly inspections. Annual oversight of the ERs and UECs is done by the
Base Environmental staff and Standtec. APIMS is used to track abrasive blasting VEO
records which were available for review at time of inspection.

II.B.5 Conditions on Aggregated Aircraft Engine Test Facilities (Unit #4).

II.B.5.a Condition:

The total emissions from all of the Jet Engine Testing, Auxiliary Power Testing, and Engine pickling
operations on the base, combined, shall not exceed the following emission limits:

Pollutant Tons / Rolling 12-Month Period
PM10 4.5
SO2 8.1
NOx 64.0
CO 48.0
VOC 24.0
[Origin: DAQE-AN101210223-12]. [R307-401-8]

II.B.5.a.1 Monitoring:

Data required for recordkeeping shall be used to determine the monthly rolling 12-month total
emissions using JETS emission estimating software or equivalent emission estimating
methodology approved by the Director. By the 30th day of each month, (or the 28th for February),
the permittee shall calculate a new monthly rolling 12-month total for each pollutant using the
data from the previous 12 months.

II.B.5.a.2 Recordkeeping:

Records of all jet engine tests shall be kept on a daily basis, when in operation. For each jet engine
test, the type of engine, date and time of test and duration of the test in each test mode (idle,
intermediate, military and afterburner, as applicable) shall be recorded in a test log kept at the test
site. For Auxiliary Power Unit Testing and pickling operations, the permittee shall record, on a
monthly basis (when in operation), the total fuel consumption and/or the total minutes of
operation. These records, along with all the input and the output from the emissions estimating
software or approved methodology for each pollutant shall be maintained in accordance with
Provision I.S.1 of this permit.

II.B.5.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

36

Status: In compliance – The rolling 12-month totals as of July 31, 2024 are as follows:

Pollutant Tons / Rolling 12-Month Period
PM10 0.5
SO2 0.3
NOX 8.8
CO 5.5
VOC 0.9

II.B.5.b Condition:

Visible emissions, from Jet Engine Testing and Auxiliary Power Testing, shall be no greater than 20
percent opacity except for a period not exceeding 1 minute in any hour. [Origin: DAQE-AN101210223-
12]. [R307-401-8]

II.B.5.b.1 Monitoring:

In lieu of monitoring via visible emission observations, activities shall be monitored to ensure the
proper operation and maintenance of the jet engines being tested.

II.B.5.b.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.5.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Logbooks for opacity monitoring are maintained in each building and are
maintained by Environmental Representatives (ERs) for various branches. The records are
produced and/or compiled by Unit Environmental Coordinators (UECs) in each facility.
UECs conduct monthly inspections. Annual oversight of the ERs and UECs is done by the
Base Environmental staff and Standtec. APIMS – Jet Share Point is used to track jet engine
maintenance and operation records which were available for review at time of inspection.

II.B.6 Conditions on Liquid Calibration Systems (Unit #5).

II.B.6.a Condition:

The total amount of VOC emissions generated by the liquid calibration systems shall not exceed 10 tons
per rolling 12-month period. [Origin: DAQE-AN101210225-12]. [R307-401-8]

II.B.6.a.1 Monitoring:

By the 30th day of each month (or the 28th for February), the permittee shall calculate a 12-month
rolling total of VOC emissions generated by the liquid calibration systems using data from the
previous 12 calendar months.

37
II.B.6.a.2 Recordkeeping:

Records of material shall be kept on a daily basis when the liquid calibration systems are in
operation.
1. Name of VOC-containing material
2. VOC content of material
3. SDS for each material
4. Quantity of material
5. Monitoring records required above

VOC = % VOC by Weight x [Density ( lb )] x Gal Consumed x 1 ton
(100) (gal) 2000 lb

Records of material may be based upon purchase and/or issue records. These records may be kept
in electronic form and shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.6.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The total amount of VOC generated by the liquid calibration systems was
1.35 tons as of July 31, 2024.

II.B.6.b Condition:

Flexibility Provisions - HAFB is allowed to add or modify any liquid calibration system, provided that
each of the following conditions is met:
1. The proposed addition or modification does not cause an increase in the currently established base-
wide limit of 10 tons of VOC per rolling 12-month period.

2. The new or modified equipment meets the approved BACT determination as provided in the subject
approval order.
[Origin: DAQE-AN101210225-12]. [R307-401-8]

II.B.6.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.6.b.2 Recordkeeping:

Records of the notifications required by this condition shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.6.b.3 Reporting:

In addition to the reporting requirements in Section I of this permit, the permittee shall provide the
following notifications.
1. Notification of new or modified equipment installation shall be submitted to DAQ seven days
prior to such installation. Relocation, replacement, or removal of equipment which does not
involve a modification (increase in emissions or installation of new air pollution control

38
equipment) will not require prior notification. Notification shall include equipment size, type,
location, conformity with BACT standards, estimated usage, and impact on the limitations in
this permit.
2. The permittee shall generate a list of operating test stand and atomizing units (equipment list)
that are subject to this condition within three working days upon request from a representative
of the Director. This equipment list shall contain liquid calibration system equipment size,
type, location and equipment identification.

Status: In compliance – Notifications for any flexibility provision, which include emission limits,
BACT and equipment lists, are submitted and reviewed by NSR. The last notice, regarding
liquid calibration systems, was submitted in 2019.

II.B.7 Conditions on Hydrazine Thermal Oxidizer (Unit #6)

II.B.7.a Condition:

The number of Emergency Power Unit (EPU) test firings shall be no greater than 520 test firings per
rolling 12-month period. [Origin: DAQE-AN101210233-14]. [R307-401-8]

II.B.7.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.7.a.2 Recordkeeping:

The permittee shall maintain a log of the date of each test firing. By the 30th day (28th day for
February) of each month, a rolling 12-month total shall be determined using records from the
previous 12-months. The Log and results of monitoring shall be maintained as described in
Provision I.S.1 of this permit.

II.B.7.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The total number of EPU or Auxiliary Power Units (APU) test firings was
131, as of July 31, 2024.

II.B.7.b Condition:

Combustion temperature of the thermal oxidizer shall be no less than 1800 degrees F during operation.
[Origin: DAQE-AN101210233-14]. [R307-401-8]

II.B.7.b.1 Monitoring:

A verification of the thermal oxidizer combustion chamber temperature shall be performed via the
external temperature gauge each day that test firing commences. This data shall be documented in
a test log. The verification shall be performed by having an operator visually monitor the external
temperature gauge to confirm that the Emergency Power Unit (EPU) test system will not proceed
with testing until the temperature reaches 1,800 degrees F.

39
II.B.7.b.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.7.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The Hydrazine Thermal Oxidizer (TO) was not operating, so the
temperature of the TO could not be determined at time of the inspection. The Hydrazine
Inspection Check List used to log TO operating temperatures is maintained at the EPU/APU
facility. The temperature of the TO is visually verify prior to test firing.

The records are produced and/or compiled by Unit Environmental Coordinators (UECs) in
each facility. UECs conduct monthly inspections. Annual oversight of the ERs and UECs is
done by the Base Environmental staff and Standtec. APIMS is used to track the Hydrazine
temperature records.

II.B.8 Conditions on Rocket Engine, Munition Test, Indoor Test Range (Unit #7).

II.B.8.a Condition:

The combined net explosive weight (NEW) of all miscellaneous munitions tested (Building 1642) shall
not exceed 1,000 lbs per rolling 12-month period. This limit applies to all munitions with a NEW of 5
pounds or more. [Origin: DAQE-AN101210249-17]. [R307-401-8]

II.B.8.a.1 Monitoring:

The permittee shall monitor the total NEW from miscellaneous munitions testing operations on a
monthly basis when operations occur. By the 30th day of each month (28th day for February), the
permittee shall calculate the rolling 12-month total NEW using the data from the previous 12
months.

II.B.8.a.2 Recordkeeping:

The permittee shall maintain a log of all miscellaneous munitions fired. The log can be in either
electronic or written form as long as it contains the following information:
(a) The dates and the type of munitions fired.
(b) The number of munitions fired.
(c) The net explosive weight for each munition fired.
(d) The rolling 12-month total NEW from all miscellaneous munitions fired shall be calculated
and recorded by the 30th of each month (28th day for February).
Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.:B.8:.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

40
Status: In compliance – The combined net explosives weight (NEW) was 0.0 lbs as of July 31, 2024.
Logs of miscellaneous munitions fired are maintained at the test facility and are
accumulated by the UEC.

II.B.8.b Condition:

The combined net explosive weight (NEW) of all rocket motors tested in the Rocket Motor Test Facility
(Building 11647) shall not exceed 19,600 pounds per rolling 12-month period.

In addition, test firing operations are limited to the following testing schedule based on the forecasted
wood/coal burn condition during the No-Burn Season and on the forecasted Clearing Index for the rest of
the year.
From November 1 through March 1 (or current DAQ no-burn season date range):
i. 665 pounds NEW per day on unrestricted action burn days (or current DAQ terminology for days
where there are no restrictions on the use of solid fuel burning devices),
ii. 399 pounds NEW per day on voluntary action burn days (or current DAQ terminology for days where
voluntary restrictions are in place for solid fuel burning devices), and
iii. No test firings shall be allowed on mandatory action burn days (or current DAQ terminology for days
where solid fuel burning devices may not be used).

From March 2 through October 31 (or current date range outside of the DAQ no-burn season):
iv. 665 pounds NEW per day on days with Clearing Index 500 and above,
v. 399 pounds NEW per day on days with Clearing Index between 500 and 200, and
vi. No test firings shall be allowed on days with a Clearing Index 200 and below.

Any combination of rocket motors can be tested as long as the NEW restrictions are satisfied. [Origin:
DAQE-AN101210249-17]. [R307-401-8]

II.B.8.b.1 Monitoring:

The permittee shall monitor the forecasted wood/coal burn condition for Davis County during the
no-burn season (November 1 through March 1 or current DAQ no-burn season date range) and the
forecasted Clearing Index for Airshed 5 (or current airshed area which incorporates the majority
of Davis and Weber Counties) the remainder of the year (March 2 through Oct 31 or current date
range outside of the DAQ no-burn season). The permittee shall also monitor the NEW from rocket
motor testing operations on a daily basis when operations occur. By the 30th day of each month
(28th day for February), the rolling 12-month total NEW shall be calculated using the data from
the previous 12 months.

II.B.8.b.2 Recordkeeping:

The permittee shall maintain a log of all rocket motors firings. The log can be in either electronic
or written form as long as it contains the following information:
(a) The dates and the type of rocket fired.
(b) The number of rockets fired.
(c) The NEW for each rocket fired.
(d) The forecasted burn condition for each rocket firing occurring from November 1 through
March 1 or current DAQ no-burn season date range.
(e) The forecasted Clearing Index for each rocket firing occurring from March 2 through October
31 or current date range outside of the DAQ no-burn season.

41
(f) The rolling 12-month total NEW from all rocket motors tested shall be calculated and
recorded by the 30th of each month (28th day for February).
Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.8.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The combined net explosive weight (NEW) of all rocket motors tested in the
Rocket Motor Test Facility was 0.0 lbs as of July 31, 2024. Logs are kept at the test facility
and are maintained by the UEC.

Burn Conditions Results (lbs)
Unrestricted Action Burn Days 0.0
Voluntary Action Burn Days 0.0
Mandatory Action Burn Days 0.0

Clearing Index Days ≥ 500 0.0
Clearing Index Days between 500 and 200 0.0
Clearing Index Days ≤200 0.0

II.B.8.c Condition:

Test firing at the indoor firing range (Building 746) shall be limited to: two 20 mm guns in one hour or
one 25 mm gun in one hour or one 30 mm gun in one hour. The 12-month rolling maximum shall be
50,000 rounds of 20 mm cartridges and 20,000 rounds of 25 mm cartridges and 20,000 rounds of 30 mm
cartridges. [Origin: DAQE-AN101210249-17]. [R307-401-8]

II.B.8.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.8.c.2 Recordkeeping:

When the indoor firing range is in use, the permittee shall keep hourly records of the number and
size of guns being test fired. The permittee shall maintain a log of all ammunition fired on a
monthly basis. The log can be in either electronic or written form as long as it contains the date,
time, type, and quantity of ammunition fired. By the 30th day of each month (28th day for
February), the permittee shall calculate and record the rolling 12-month total, by cartridge type,
using the data from the previous 12 months. Records shall be maintained in accordance with
Provision I.S.1 of this permit.

II.B.8.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status

In compliance – Rounds fired at the indoor firing range as of July 31, 2024:

42
Guns ((mm) Number of Rounds Fired
20 1,358
25 0.0
30 100

APIMS is used to track rounds fired records which were available for review at time of
inspection.

II.B.9 Conditions on Limited Use Power Supply Units (Unit #11).

II.B.9.a Condition:

For units with a rated capacity of <=1,700 kW, the permittee shall not exceed 8,670 combined hours of
maintenance-related operations per rolling 12-month period for all the limited use power supply units
combined. No single limited use power supply unit shall exceed 500 hours of maintenance-related
operation per rolling 12-month period unless otherwise specified. [Origin: DAQE-AN0121175-06].
[R307-401-8]

II.B.9.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.9.a.2 Recordkeeping:

Hours of operation for each limited use power supply unit on base shall be monitored and
recorded on a monthly basis in an operation and maintenance log. Records shall distinguish
between maintenance-related hours and limited use-related hours. A description of the limited use
hours shall also be provided (e.g. electric or mechanical power interrupted, fire, etc.). By the 30th
day of each month (28th for February), a monthly rolling 12-month total shall be calculated for
each unit and for the total of all units using the data from the previous 12 months. Results of
monitoring shall be maintained as described in Provision I.S.1 of this permit.

II.B.9.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The combined maintenance hours of operation, for the limited use engines,
was 1,060, as of July 31, 2024. Records also indicated that the maximum maintenance hours
for a single unit as of July 31, 2024, was 24.2 hours.

II.B.9.b Condition:

Unless otherwise specified in this permit, sulfur content of the diesel fuels combusted shall be no greater
than 0.5 percent by weight. [Origin: DAQE-AN0121175-06]. [R307-401-8]

II.B.9.b.1 Monitoring:

For each delivery of diesel fuel, the permittee shall either:
(1) Determine the fuel sulfur content expressed as wt% in accordance with the methods of the
American Society for Testing Materials (ASTM);

43
(2) Inspect the fuel sulfur content expressed as wt% determined by the vendor using methods of
the ASTM; or
(3) Inspect documentation provided by the vendor that indirectly demonstrates compliance with
this provision.

II.B.9.b.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.9.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB complies with item 3 above. The Defense Logistic Agency (DLA)
invoices indicated that Diesel #2 is combusted on base. See status of condition II.B.1.a.

II.B.9.c Condition:

Unless otherwise specified in this permit, visible emissions from limited use power supply units shall be
no greater than 20 percent opacity, except for a period not exceeding 3 minutes in any hour for diesel-fired
units only. [Origin: DAQE-AN0121175-06, DAQE-AN101210266-19]. [R307-305-3, R307-401-8]

II.B.9.c.1 Monitoring:

A. For emission units operating on natural gas only, in lieu of monitoring via visible emission
observations the permittee shall monitor fuel usage to demonstrate that only pipeline-quality
natural gas is being used as fuel.
B. For all other emission units operating on fuel other than natural gas, the permittee shall apply
one of the following monitoring techniques to each affected emission unit when in operation:
(1) Monthly visual opacity survey conducted by an individual trained on the observation
procedures of 40 CFR 60, Appendix A, Method 9. If any visible emissions other than
condensed water vapor are observed from an emission point, an opacity determination
of that emission point shall be performed in accordance with 40 CFR 60, Method 9
within 24 hours of the initial visual opacity survey or upon startup if the unit must be
shutdown for maintenance. If the unit must be permanently removed from service, no
follow-up opacity determination is required.
(2) Quarterly photogrametric opacity observations conducted by an individual trained on
the observation procedures of 40 CFR 60, Appendix A, Method 9. If an opacity of 15
percent or more is detected by the photogrametric analysis, an opacity determination of
that emission point shall be performed in accordance with 40 CFR 60, Appendix A,
Method 9 within 24 hours of the initial photogrametric opacity observation or upon
startup if the unit must be shutdown for maintenance. If the unit must be permanently
removed from service, no follow-up opacity determination is required.
(3) An annual opacity determination performed in accordance with 40 CFR 60, Appendix A,
Method 9.

The monitoring option selected can vary from unit to unit. For example, if quarterly
photogrametric opacity observations are being conducted for a given unit and the permittee cannot
conduct a photogrametric opacity observation in a quarter that unit operated, an opacity

44
determination conducted in accordance with the procedures of 40 CFR 60, Appendix A, Method 9
will satisfy the monitoring requirements of this condition.

II.B.9.c.2 Recordkeeping:

For emission units fired on natural gas, the permittee shall maintain records such as gas bills, and
gas meter readings to demonstrate natural gas usage. Records shall be maintained as described in
Provision I.S of this permit.

For all other emission units, the permittee shall maintain a log of monthly visual opacity surveys,
quarterly photogrametric observations, and/or annual opacity determinations which includes the
following information for each affected emission unit: the date and time of each visual opacity
survey, photogrametric opacity observation, annual opacity determination, the specific monitoring
technique used (visual opacity survey, 40 CFR 60 Appendix A Method 9, or photogrametric
observation) and the result of the opacity monitoring. The records required by this provision and
all data required by 40 CFR 60, Appendix A, Method 9 shall be maintained in accordance with
Provision I.S.1 of this permit.

II.B.9.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB complies with item 3 above. Opacity determinations are not
conducted regarding the one natural gas engine, which operates on pipeline-quality natural
gas. Records are maintained and were reviewed at time of inspection.

II.B.9.d Condition:

For each gasoline-fired affected emission unit, the permittee shall not allow, cause or permit the emissions
of visible pollutants. [Origin: R307-305-3(2)]. [R307-305-3(2)]

II.B.9.d.1 Monitoring:

The permittee shall apply one of the following monitoring techniques to each gasoline-fired
engine affected emission unit when in operation:
(1) Monthly visual opacity survey conducted by an individual trained on the observation
procedures of 40 CFR 60, Appendix A, Method 9. If any visible emissions other than
condensed water vapor are observed from an emission point, an opacity determination of that
emission point shall be performed in accordance with 40 CFR 52.128, Appendix A, Method
203C within 24 hours of the initial visual opacity survey or upon startup if the unit must be
shutdown for maintenance. If the unit must be permanently removed from service, no
follow-up opacity determination is required.
(2) Quarterly photogrametric opacity observations conducted by an individual trained on the
observation procedures of 40 CFR 60, Appendix A, Method 9. If an opacity is detected by the
photogrametric analysis, an opacity determination of that emission point shall be performed
in accordance with 40 CFR 52.128, Appendix A, Method 203C within 24 hours of the initial
photogrametric opacity observation or upon startup if the unit must be shut down for
maintenance. If the unit must be permanently removed from service, no follow-up opacity
determination is required.

45
(3) An annual opacity determination performed in accordance with 40 CFR 52.128, Appendix A,
Method 203C.

The monitoring option selected can vary from unit to unit. For example, if quarterly
photogrametric opacity observations are being conducted for a given unit and the permittee cannot
conduct a photogrametric opacity observation in a quarter that unit operated, an opacity
determination conducted in accordance with the procedures of 40 CFR 52.128, Appendix A,
Method 203C will satisfy the monitoring requirements of this condition.

II.B.9.d.2 Recordkeeping:

The permittee shall maintain a log of monthly visual opacity surveys, quarterly photogrametric
observations, and/or annual opacity determinations which includes the following information for
each affected emission unit: the date and time of each visual opacity survey, photogrametric
opacity observation, annual opacity determination, the specific monitoring technique used (visual
opacity survey, 40 CFR 52.128, Appendix A, Method 203C, or photogrametric observation) and
the result of the opacity monitoring. The records required by this provision and all data required
by 40 CFR 52.128, Appendix A, Method 203C shall be maintained in accordance with Provision
I.S.1 of this permit.

II.B.9.d.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – There are no gasoline limited use power engines on base. The old gasoline barrier
engines have recently been replaced with new diesel barrier engines.

II.B.9.e Condition:

Flexibility Provisions - HAFB is allowed to add or modify any limited use power supply units with a rated
capacity of <=1,700 kW, provided that each of the following conditions are met:
1. The proposed addition or modification does not cause an increase in the currently established base-
wide 8,670 combined hours of maintenance-related operations per rolling 12-month period for all the
limited use power supply units combined.
2. The new or modified installation or piece of equipment must be properly operated and maintained. If
new BACT for this type of process is established, DAQ has the right to re-open this permit to change
BACT for this process accordingly.
[Origin: DAQE-AN0121175-06]. [R307-401-8]

II.B.9.e.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.9.e.2 Recordkeeping:

Records of the notifications required by this condition shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.9.e.3 Reporting:

46
In addition to the reporting requirements in Section I of this permit, the permittee shall provide the
following notifications.
1. Notification of new equipment installation must be submitted to DAQ seven days prior to such
installation. Relocation or removal of equipment which does not involve a modification
(increase in emissions or installation of new air pollution control equipment) will not require
prior notification. Notification shall include equipment size, type, location, estimated
emissions, impact of estimated maintenance hours for new equipment and existing
maintenance hours limit consumed.
2. Hill shall generate a list of all operating limited use power supply equipment (equipment list)
that are subject to this condition within three working days upon request from a representative
of the Director. This equipment list shall contain each limited use power supply equipment's
output capacity, manufacture type, fuel type, location and equipment identification numbers.

Status: In compliance – Notifications for any flexibility provision, which include emission limits,
BACT and equipment lists, are submitted and reviewed by NSR. The last notice was
emailed on August 15, 2024.

II.B.10 Conditions on Metal Flame Spray Operations (Unit #12).

II.B.10.a Condition:

Visible emissions shall be no greater than 10 percent opacity from each affected emission unit. [Origin:
DAQE-AN101210229-12]. [R307-401-8]

II.B.10.a.1 Monitoring:

A visual opacity survey of each affected emission unit shall be performed on a monthly basis by
an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If
visible emissions other than condensed water vapor are observed from an emission unit it will be
shutdown. An opacity determination of that emission unit shall be performed by a certified
observer on startup. The opacity determination shall be performed in accordance with 40 CFR 60,
Appendix A, Method 9.

II.B.10.a.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall also keep a log of the
following information for each opacity determination: date and time visual emissions observed,
emission point location and description, time and date of opacity test, and percent opacity. The
records required by this provision and all data required by 40 CFR 60, Appendix A, Method 9
shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.10.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The Metal Flam Spray Operations (MFSO) / High Velocity Oxygen
Furnaces (HVOF) are located in building 511. Visible observations are conducted monthly
and are recorded in a log book. This condition limits grandfathered sources to 20% opacity,
including: the grandfathered Metal Flame Booths in Bldg. 511 (AQUIS 3355, 3380, 3382,

47
3387, 3391 and 3686). Method 9 sheets are maintained when Method 9 opacity observations
are required. Standtec conducts oversight inspections of visible emission observations
(VEOs) which are tracked in APIMS. APIMS visual opacity survey records were available
at time of the inspection.

II.B.10.b Condition:

The permittee shall notify the Director in writing when the installation of the two new guns in the HVOF
and Wire Arc spray booth with water wall filtration have been completed and are operational. To ensure
proper credit when notifying the Director, send your correspondence to the Director, attn: Compliance
Section. [Origin: DAQE-AN101210229-12]. [R307-401-8]

II.B.10.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.10.b.2 Recordkeeping:

As applicable, the permittee shall maintain a copy of each notification required by this permit
condition in accordance with Provision I.S.1 of this permit.

II.B.10.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – This condition is no longer required.

II.B.11 Conditions on Metal Plating Subject to Hard Chrome NESHAP (Unit #13).

II.B.11.a Condition:

The permittee shall prepare and implement an operation and maintenance (O & M) plan. The plan shall
include the following elements:
(A) The plan shall specify the operation and maintenance criteria for the affected source, the add-on air
pollution control device, and the process and control system monitoring equipment, and shall
include a standardized checklist to document the operation and maintenance of this equipment;
(B) The plan shall incorporate the following operation and maintenance practices:
1. Once per quarter visually inspect the scrubber to ensure that there is proper drainage, no chromic
acid buildup on the pads, and no evidence of chemical attack on the structural integrity of the
device.
2. Once per quarter visually inspect the back portion of the mesh pad closest to the fan to ensure
there is no breakthrough of chromic acid mist
3. Once per quarter visually inspect the ductwork from the tank to the scrubber to ensure that there
are no leaks.
4. At the frequency specified by the manufacturer, perform washdown of the composite mesh pads
in accordance with manufacturer's recommendations;
(C) The plan shall specify procedures to be followed to ensure that equipment or process malfunctions
due to poor maintenance or other preventable conditions do not occur;

48
(D) The plan shall include a systematic procedure for identifying malfunctions of process equipment,
add-on air pollution control devices, and process and control system monitoring equipment and for
implementing corrective actions to address such malfunctions, and
(E) The plan shall include the following housekeeping procedures.
1. For any substance used in an affected chromium electroplating tank that contains hexavalent
chromium, the permittee shall:
a) At all times, except when transferring the substance to and from the container, store the
substance in a closed container in an enclosed storage area or building; and
b) Whenever transporting the substance, except when transferring the substance to and from
the container, use a closed container when transporting the substance from the enclosed
storage area.
2. For each affected tank, to minimize spills of bath solution that result from dragout, the permittee
shall:
a) Prior to operating the tank, install drip trays that collect and return to the tank any bath
solution that drips or drains from parts as the parts are removed from the tank; or
b) Whenever removing parts from an affected tank, contain and return to the tank any bath
solution that drains or drips from parts as the parts are removed from the tank; or
c) Whenever removing parts from an affected tank, collect and treat in an onsite wastewater
treatment plant any bath solution that drains or drips from parts as the parts are removed
from the tank.
Note: this measure does not require the return of contaminated bath solution to the tank. This
requirement applies only as the parts are removed from the tank. Once away from the tank area,
any spilled solution shall be handled in accordance with Item 4 below.
3. Prior to each spraying operation for removing excess chromic acid from parts removed from,
and occurring over, an affected tank, the permittee shall install a splash guard to minimize
overspray during spraying operations and to ensure that any hexavalent chromium laden liquid
captured by the splash guard is returned to the affected chromium electroplating tank.
4. For each operation that involves the handling or use of any substance used in an affected
chromium electroplating tank that contains hexavalent chromium, the permittee shall, within 1
hour of a spill, begin clean up, or otherwise contain, all spills of the substance.
Note: substances that fall or flow into drip trays, pans, sumps, or other containment areas are not
considered spills.
5. For surfaces within the enclosed storage area, open floor area, walkways around affected tanks
contaminated with hexavalent chromium from an affected chromium electroplating tank, the
permittee shall:
a) At least once every 7 days if one or more chromium electroplating tanks were used, or at
least after every 40 hours of operating time of one or more affected chromium electroplating
tank, whichever is later, clean the surfaces using one or more of the following methods:
HEPA vacuuming; Hand-wiping with a damp cloth; Wet mopping; Hose down or rinse with
potable water that is collected in a wastewater collection system; Other cleaning method
approved by the Director; or
b) According to manufacturer's recommendations, apply a non-toxic chemical dust suppressant
to the surfaces.
6. For all buffing, grinding, or polishing operations that are located in the same room as chromium
electroplating operations, prior to beginning the buffing, grinding, or polishing operation, the
permittee shall separate the operation from any affected electroplating operation by installing a
physical barrier; the barrier may take the form of plastic strip curtains.
7. For all chromium or chromium-containing wastes generated from housekeeping activities, at all
times, the permittee shall store, dispose, recover, or recycle the wastes using practices that do
not lead to fugitive dust and in accordance with hazardous waste requirements.

49

To satisfy these applicable requirements, the permittee may use applicable standard operating procedure
(SOP) manuals, Occupational Safety and Health Administration (OSHA) plans, or other existing plans,
provided the alternative plans meet the requirements of this permit condition. If the operation and
maintenance plan fails to address or inadequately addresses an event that meets the characteristics of a
malfunction at the time the plan is initially developed, the permittee shall revise the operation and
maintenance plan within 45 days after such an event occurs. The revised plan shall include procedures for
operating and maintaining the process equipment, add-on air pollution control device, or monitoring
equipment during similar malfunction events, and a program for corrective action for such events.
[Origin: 40 CFR 63 Subpart N]. [40 CFR 63.342(f)(3)(i), 40 CFR 63.342(f)(3)(ii), 40 CFR
63.342(f)(3)(vi)]

II.B.11.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.11.a.2 Recordkeeping:

The permittee shall maintain the following records for each affected source:
(1) Inspection records for the add-on air pollution control device and monitoring equipment, to
document that the inspection and maintenance required by the work practice standards of
this condition have taken place. The record can take the form of a checklist and should
identify the device inspected, the date of inspection, a brief description of the working
condition of the device during the inspection, and any actions taken to correct deficiencies
found during the inspection.
(2) Records of all maintenance performed on the affected source, the add-on air pollution
control device, and monitoring equipment, except routine housekeeping practices;
(3) Records of the occurrence, duration, and cause (if known) of each malfunction of process,
add-on air pollution control, and monitoring equipment;
(4) Records of actions taken during periods of malfunction when such actions are inconsistent
with the operation and maintenance plan;
(5) Other records, which may take the form of checklists, necessary to demonstrate consistency
with the provisions of the operation and maintenance plan required by this condition.
(6) The specific identification (i.e., the date and time of commencement and completion) of
each period of excess emissions, as indicated by monitoring data, that occurs during
malfunction of the process, add-on air pollution control, or monitoring equipment;
(7) The specific identification (i.e., the date and time of commencement and completion) of
each period of excess emissions, as indicated by monitoring data, that occurs during periods
other than malfunction of the process, add-on air pollution control, or monitoring
equipment;
(8) The total process operating time of the affected source during the reporting period; and
(9) All documentation supporting the notifications and reports required by 40 CFR 63.9, 40
CFR 63.10, and 40 CFR 63.347.

The permittee shall keep the written operation and maintenance plan on record after it is
developed to be made available for inspection, upon request, by the Director for the life of the
affected source or until the source is no longer subject to the provisions of 40 CFR 63 Subpart N.
In addition, if the operation and maintenance plan is revised, the permittee shall keep previous
(i.e., superseded) versions of the operation and maintenance plan on record to be made available
for inspection, upon request, by the Director for a period of 5 years after each revision to the plan.

50
II.B.11.a.3 Reporting:

In addition to the reporting required in Section I of this permit, if actions taken by the permittee
during periods of malfunction are inconsistent with the procedures specified in the operation and
maintenance plan required by this condition, the permittee shall record the actions taken for that
event and shall report by phone such actions within 2 working days after commencing actions
inconsistent with the plan. This report shall be followed by a letter within 7 working days after the
end of the event, unless the permittee makes alternative reporting arrangements, in advance, with
the Director.

Also a summary report shall be submitted to document the ongoing compliance status. This
summary report shall be submitted semiannually unless a stack test shows that the emission limit
has been exceeded or operation occurs outside the range of compliant values for the pressure drop
established during stack testing, in which case the report shall be submitted quarterly until a
request to reduce reporting frequency, submitted in accordance with 40 CFR 63.347(g)(2), is
approved. The summary report shall contain the following information:
(i) The company name and address of the affected source;
(ii) An identification of the operating parameter that is monitored for compliance determination,
as required by this permit;
(iii) The relevant emission limitation for the affected source, and the operating parameter value,
or range of values, that correspond to compliance with this emission limitation as specified
in the notification of compliance status required by this permit;
(iv) The beginning and ending dates of the reporting period;
(v) A description of the type of process performed in the affected source;
(vi) The total operating time of the affected source during the reporting period;
(vii) A summary of operating parameter values, including the total duration of excess emissions
during the reporting period as indicated by those values, the total duration of excess
emissions expressed as a percent of the total source operating time during that reporting
period, and a breakdown of the total duration of excess emissions during the reporting
period into those that are due to process upsets, control equipment malfunctions, other
known causes, and unknown causes;
(viii) A certification by a responsible official that the work practice standards in of this permit
were followed in accordance with the operation and maintenance plan for the source;
(ix) If the operation and maintenance plan required by this permit was not followed, an
explanation of the reasons for not following the provisions, an assessment of whether any
excess emission and/or parameter monitoring exceedances are believed to have occurred,
and a copy of the report(s) required by this permit documenting that the operation and
maintenance plan was not followed;
(x) A description of any changes in monitoring, processes, or controls since the last reporting
period;
(xi) The number, duration, and a brief description for each type of malfunction which occurred
during the reporting period and which caused or may have caused any applicable emission
limitation to be exceeded. The report shall also include a description of actions taken by the
permittee during a malfunction of an affected source to minimize emissions in accordance
with Condition II.B.11.c, including actions taken to correct a malfunction.
(xii) The name, title, and signature of the responsible official who is certifying the accuracy of
the report; and
(xiii) The date of the report.

When more than one monitoring device is used to comply with the continuous compliance
monitoring required by this permit, the permittee shall report the results as required for each

51
monitoring device. However, when one monitoring device is used as a backup for the primary
monitoring device, the permittee shall only report the results from the monitoring device used to
meet the monitoring requirements of this subpart. If both devices are used to meet these
requirements, then the permittee shall report the results from each monitoring device for the
relevant compliance period. (origin: 40 CFR 63.347(g)(4)).

Status: In compliance – HAFB has prepared an O&M Plan (last revised June 7, 2013) The plan
contains all of the requirements listed above. The base has also developed a Chrome Plating
Plan dated April 1, 2024. Records required under this condition are maintained on-site.
HAFB is aware of the malfunction reporting requirements of this condition. HAFB does
submit a semiannual “ongoing compliance status summary report” (July and January of
each year). Semi-annual reports for 2023 and 2024 have been submitted. The reports have
indicated no exceedances. The last report was received by the DAQ on July 26, 2024.

II.B.11.b Condition:

On and after the date on which the initial performance test is required to be completed except during
automatic washdown cycles, the composite mesh-pad system shall be operated within plus or minus two
inches of water column of the pressure drop value established during the initial performance test, or shall
be operated within the range of compliant values for pressure drop established during multiple
performance tests. [Origin: 40 CFR 63 Subpart N]. [40 CFR 63.343(c)(1)(ii) and (iv)]

II.B.11.b.1 Monitoring:

The permittee shall monitor and record the pressure drop across the composite mesh-pad system
once each day that any affected source is operated. All monitoring equipment shall be installed
such that representative measurements of process parameters are obtained. For monitoring
equipment purchased from a vendor, verification of the operational status of the monitoring
equipment shall include execution of the manufacturer's written specifications or
recommendations for installation, operation and calibration of the system. Specification for
differential pressure measurement devices used to measure pressure drop across a control system
shall be in accordance with manufacturer's accuracy specifications.
(i) Pressure taps shall be installed at any of the following locations:
(A) At the inlet and outlet of the control system. The inlet tap should be installed in the
ductwork just prior to the control device and the corresponding outlet pressure tap
should be installed on the outlet side of the control device prior to the blower or on the
downstream side of the blower;
(B) On each side of each mesh pad within the control system; or
(C) On the front side of the first mesh pad and back side of the last mesh pad within the
control system.
(ii) Pressure taps shall be sited at locations that are:
(A) Free from pluggage as possible and away from any flow disturbances such as cyclonic
demisters.
(B) Situated such that no air infiltration at measurement site will occur that could bias the
measurement.
(iii) Pressure taps shall be constructed of either polyethylene, polybutylene, or other nonreactive
materials.
(iv) Nonreactive plastic tubing shall be used to connect the pressure taps to the device used to
measure pressure drop.
(v) Any of the following pressure gauges can be used to monitor pressure drop: a magnehelic
gauge, an inclined manometer, or a "U" tube manometer.

52
(vi) Prior to connecting any pressure lines to the pressure gauge(s), each gauge should be zeroed.
No calibration of the pressure gauges is required.
(40 CFR 63.343(c)(1)(ii), 40 CFR 63.344(d)(2), 40 CFR 63.344(d)(5)).

II.B.11.b.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.11.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB has three chrome NESHAP plating lines and nine non-chrome lines
in Bldg. 505 and one non-chrome line in Bldg. 511:

Line Tank
(CR)
Vents to
stack
Recirculating
Tank
Compliant
Value reading

1 1-4 S-1 n/o Chrome
NESHAP
2 5-8 S-1 n/o Chrome
NESHAP
3 9-10 S-2 n/o Chrome
NESHAP
4 15-16 S-2 n/o Non-Chrome
5, 9, 10, 11,
12, 13, 14, 15,
16,17, 18,
and 19
S-4 to S-
10
4 tanks n/o Non-Chrome
– 6 scrubber
stacks
Bldg. 511 S-11 none n/o Non-Chrome

Pressure drop initial values are posted on each pressure drop meter. They match the values
during the most recent stack test. The real time readings were not observed at time of the
inspection. Pressure taps were installed according to item A above. A magnehelic gauge is
used to monitor pressure drop across the mesh pad system. Non-reactive plastic tubing is
used to connect the pressure taps to the pressure gauge. Records are maintained and
confirmed compliance. The semi-annual compliance status reports submitted in 2023 and
2024 indicate that work practice standards were followed and that no exceedances reported.
The last Semi-annual compliance status report was submitted on July 26, 2024.

II.B.11.c Condition:

At all times, including periods of startup, shutdown, and malfunction, the permittee shall operate and
maintain the affected emission unit, including associated air pollution control devices and monitoring
equipment, in a manner consistent with safety and good air pollution control practices for minimizing
emissions. The general duty to minimize emissions does not require the permittee to make any further
efforts to reduce emissions if levels required by 40 CFR 63 Subpart N have been achieved. Determination
of whether acceptable operation and maintenance procedures are being used will be based on information
available to the Director, which may include, but is not limited to: monitoring results; review of the
operation and maintenance plan, procedures, and records; and inspection of the affected emission unit.

53
Malfunctions shall be corrected as soon as practicable after their occurrence in accordance with the
operation and maintenance plan. Operation and maintenance requirements are enforceable independent of
emissions limitations or other requirements in relevant standards. [Origin: 40 CFR 63 Subpart N]. [40
CFR 63.342(a)(1), 40 CFR 63.342(f)(1), 40 CFR 63.342(f)(2)(i)]

II.B.11.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.11.c.2 Recordkeeping:

The permittee shall document activities performed to assure proper operation and maintenance.
The permittee shall maintain records of actions taken during periods of malfunction to minimize
emissions, including corrective actions to restore malfunctioning process and air pollution control
and monitoring equipment to its normal or usual manner of operation. (origin: 40 CFR
63.346(b)(4)) Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.11.c.3 Reporting:

In addition to the reporting requirements of Section I of this permit, the permittee shall submit the
notifications required by 40 CFR 63.345 and 40 CFR 63.347(c)(2) for new or reconstructed
sources.

Status: In compliance – Acceptable O&M procedures were being utilized at the time of this
inspection. Notification required by 40 CFR 63.346 - provisions for new and reconstructed
sources and 40 CFR 347(c)(2) – initial notification appeared to have been met and were
evaluated in previous inspections and are no longer a compliance concern unless the source
reconstructs or modifies its lines. O&M Plans and Compliance Notices are submitted.

II.B.11.d Condition:

The concentration of total chromium in the exhaust gas stream discharged to the atmosphere shall not
exceed 0.011 milligrams of total chromium per dry standard cubic meter (mg/dscm) (4.8 x 10E-6 grains
per dry standard cubic foot (gr/dscf)) of ventilation air for all existing affected emission units during tank
operation and during periods of startup and shutdown. In response to an action to enforce the standards
set forth in this condition, the permittee may assert a defense to a claim for civil penalties for violations of
such standards that are caused by a malfunction, as defined in 40 CFR 40 CFR 63.2, in accordance with
40 CFR 63.342(b)(1). [Origin: 40 CFR 63 Subpart N]. [40 CFR 63.342(b)(1), 40 CFR 63.342(c)(1)(i)]

II.B.11.d.1 Monitoring:

Stack testing shall be performed as specified below:
(a) Testing and Frequency. Following the initial performance test for existing sources, the
permittee may also repeat the performance test and establish new site-specific operating
parameters as specified in 40 CFR 63.343(c)(1)(iii).
(b) Notification. The permittee of shall notify the Director in writing of his or her intention to
conduct a performance test at least 60 calendar days before the test is scheduled to begin to
allow the Director to have an observer present during the test. The test plan to be followed
shall be made available to the Director prior to the testing, if requested. (40 CFR 63.344(a)
and 40 CFR 63.347(d)(1))

54
(c) Sample Location. The emission sample point shall conform to the requirements of 40 CFR
60, Appendix A, Method 1 and 40 CFR 63.7(d). In addition, Occupational Safety and Health
Administration (OSHA) approved access shall be provided to the test location.
(d) Method to be used. Method 306 or 306A, "Determination of Chromium Emissions From
Decorative and Hard Chromium Electroplating and Anodizing Operations" (40 CFR 63,
Appendix A, Method 306 and 306A). The sampling time and sample volume for each run of
Methods 306 and 306A shall be at least 120 minutes and 1.70 dscm (60 dscf) respectively.
(origin: 40 CFR 63.344(c))
(e) Establishment of Site Specific Operating Parameters. During the repeat performance test, the
permittee, shall establish as a site-specific operating parameter the pressure drop across the
system, setting the value that corresponds to compliance with the emission limit of this
condition using pressure drop monitoring procedures specified for the affected emission unit
in this permit. The permittee may conduct multiple performance tests to establish a range of
compliant pressure drop values, or may set as the compliant value the average pressure drop
measured over the three test runs of one performance test and accept +/- 2 inches of water
column from this value as the compliant range.(origin: 40 CFR 63.343(c)(1)(i) and 40 CFR
63.344(d)(5))
(f) Performance tests shall be conducted using the test methods and procedures in this condition.
Performance tests shall be conducted under such conditions as the Director specifies to the
permittee based on representative performance of the affected source for the period being
tested. Upon request, the permittee shall make available to the Director such records as may
be necessary to determine the conditions of performance tests. (origin: 40 CFR 63.344(a))
(g) If the permittee conducts performance testing at startup to obtain an operating permit in the
State in which the affected emission unit is located, the results of such testing may be used to
demonstrate compliance with this condition if:
(i) The test methods and procedures identified in paragraph (d) of this section were used
during the performance test;
(ii) The performance test was conducted under representative operating conditions for the
source;
(iii) The performance test report contains the elements required by condition II.B.11.d.2;
(iv) The permittee has sufficient data to establish the operating parameter value(s) that
correspond to compliance with the standards, as required for continuous compliance
monitoring under paragraph (e); and
(v) The performance test was conducted after January 25, 1995;
(vi) As of September 19, 2012, the affected emission unit was using the same emissions
controls that were used during the compliance test;
(vii) As of September 19, 2012, the affected emission unit was operating under conditions
that are representative of the conditions under which it was operating during the
compliance test; and
(viii) Based on approval from the Director.
(origin: 40 CFR 63.344(b)(1)).

II.B.11.d.2 Recordkeeping:

Results of all stack testing shall be documented in complete test reports that contain the following
information, as specified in 40 CFR 63.344(a) Subpart N:
1. Brief process description
2. Sampling location description
3. Description of sampling and analytical procedures and any modifications to standard
procedures
4. Test results

55
5. Quality assurance procedures and results
6. Records of operating conditions during the test, preparation of standards, and calibration
procedures
7. Raw data sheets for field sampling and field and laboratory analyses
8. Documentation of calculations and,
9. Any other information required by the test method.

The test report documenting results of all performance tests, all measurements as may be
necessary to determine the conditions of performance tests, and records of monitoring data used to
demonstrate compliance with the standard including the date and time the data are collected, shall
be kept in accordance with provision I.S.1 of this permit.

II.B.11.d.3 Reporting:

Reports of performance test results shall be submitted no later than 90 days following the
completion of the performance test. A notification of compliance status (NOC) shall also be
submitted pursuant to 40 CFR 63.347(e). The NOC shall be submitted no later than 90 calendar
days following the completion of the compliance demonstration required by the condition and
shall include the performance test results. (origin: 40 CFR 63.347(e), (f)(2))

Within 60 days after the date of completing each performance test the permittee shall submit the
results of the performance tests, including any associated fuel analyses, required by 40 CFR 63
Subpart N to the EPA's WebFIRE database by using the Compliance and Emissions Data
Reporting Interface (CEDRI) that is accessed through the EPA's Central Data Exchange (CDX)
(www.epa.gov/cdx). Performance test data shall be submitted in the file format generated through
use of the EPA's Electronic Reporting Tool (ERT) (see
http://www.epa.gov/ttn/chief/ert/index.html). Only data collected using test methods on the ERT
Web site are subject to this requirement for submitting reports electronically to WebFIRE. If some
of the information being submitted for performance tests is confidential business information
(CBI), the permittee shall submit a complete ERT file including information claimed to be CBI on
a compact disk, flash drive or other commonly used electronic storage media to the EPA. The
electronic media shall be clearly marked as CBI and mailed to U.S. EPA/OAPQS/CORE CBI
Office, Attention: WebFIRE Administrator, MD C404-02, 4930 Old Page Rd., Durham, NC
27703. The same ERT file with the CBI omitted shall be submitted to the EPA via CDX as
described earlier in this paragraph. At the discretion of the delegated authority, the permittee shall
also submit these reports, including the confidential business information, to the delegated
authority in the format specified by the delegated authority. For any performance test conducted
using test methods that are not listed on the ERT Web site, the permittee shall submit the results
of the performance test to the Administrator at the appropriate address listed in 40 CFR 63.13.
(origin: 40 CFR 63.347(f)(3))

If the permittee seeks to assert an affirmative defense, they shall submit a written report with all
necessary supporting documentation, that it has met the requirements set forth in 40 CFR
63.342(b)(1)(i). This affirmative defense report shall be included in the first periodic compliance,
deviation report or excess emission report otherwise required after the initial occurrence of the
violation of the relevant standard (which may be the end of any applicable averaging period). If
such compliance, deviation report or excess emission report is due less than 45 days after the
initial occurrence of the violation, the affirmation defense report may be included in the second
compliance, deviation report or excess emission report due after the initial occurrence of the
violation of the relevant standard. (origin: 40 CFR 63.342(b)(1)(ii)) There are no additional
reporting requirements for this provision except those specified in Section I of this permit.

56

Status: In compliance – On September 19, 2012, EPA tightened the total chromium standard from
0.015 mg/dscm (6.6 x 10E-6 gr/dscf) to 0.011 mg/dscm (4.8 x 10E-6 gr/dscf). HAFB
submitted performance test data to EPA WebFire for Lines 1-4. Lines 1 and 2 were tested
on March 21 and 22, 2016. Results were 0.003 mg /dscm (1.49 x 10E-6 gr/dscf). Lines 3 and
4 were tested November 18, 2008. Results were 0.005 mg/dscm (no gr/dscf available). These
test results only need to be submitted to the DAQ upon request.

II.B.12 Conditions on Metal Plating Not Subject to Hard Chrome NESHAP (Unit #15).

II.B.12.a Condition:

The scrubbing liquor shall be either fresh water (tap, deionized or distilled water acceptable) or
recirculating water with fresh water makeup. The recirculation scrubbing water pH shall not be less than
2.5 or exceed 11.0. [Origin: DAQE-AN0101210214-11]. [R307-401-8]

II.B.12.a.1 Monitoring:

The scrubber water pH shall be measured once per week by collecting a sample from each of the
corresponding recirculating tanks.

II.B.12.a.2 Recordkeeping:

A log of the scrubber water testing shall be kept which shall include:
A. pH
B. Time and date of testing
C. Corrective action taken

II.B.12.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB analyzes the pH of the scrubbing liquor on Wednesdays from each of
the 4 recirculating tanks. Records are maintained.

II.B.12.b Condition:

The hydrogen cyanide emissions from scrubber No. 6 shall not exceed 0.047 tons per rolling 12-month
period. The cadmium emissions from scrubber No. 6 shall not exceed 0.00021 tons per rolling 12-month
period. Based on a correlation established between cadmium emissions and the magnitude of electrical
current applied during the cadmium plating process, and based on sampling results indicating that the
cadmium emissions limit would be reached before the hydrogen cyanide limit (reference: report submitted
by Hill AFB on April 12, 2000), compliance with a limitation of 2,460,000 amp-hours per rolling 12-
month period at plating line 10 shall constitute compliance with the hydrogen cyanide and cadmium
emission limits for scrubber No. 6. [Origin: DAQE-AN0101210214-11]. [R307-401-8]

II.B.12.b.1 Monitoring:

Records of amp-hour consumption for plating line 10 shall be maintained for all periods when the
line is in operation. Compliance with the amp-hour limitations shall be based on a rolling 12-

57
month total. By the end of each calendar month, a monthly rolling 12-month total shall be
calculated using data from the previous 12 months.

II.B.12.b.2 Recordkeeping:

Records of amp-hour consumption shall be kept on site and made available to the Director upon
request. Results of monitoring shall be maintained as described in Provision I.S.1 of this permit.

II.B.12.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Plating line 10 amp-hours were 47.648, as of July 31, 2024.

II.B.12.c Condition:

Each scrubber shall be operated within plus or minus two inches of water of the provisional compliant
pressure drop. A provisional compliant pressure drop range is based on operational experience.
Provisional compliant pressure drop ranges shall be posted near the pressure drop monitor in a way that it
is accessible to plant personnel as well as to the Director or a representative. The compliant range for each
scrubber must be included in the corresponding Operation and Maintenance Plan for each of these air
pollution control devices. An excursion of more than two inches of water outside the compliant range will
be allowed for a maximum of ten minutes. [Origin: DAQE-AN0101210214-11]. [R307-401-8]

II.B.12.c.1 Monitoring:

All scrubbers shall be equipped with a primary pressure drop monitoring system (pressure
differential gauge) with set point alarms that are actuated if the pressure drop exceeds the
provisional compliant pressure drop. This pressure drop monitoring system must be operated at all
times that the plating line is operational. The permittee shall monitor and record the pressure drop
across the composite mesh-pad system once each day that any affected source is operated. Any
maintenance of the primary pressure drop monitoring system that cannot be performed within one
(1) hour shall be scheduled for times when plating line is not in use unless a secondary pressure
drop monitoring system (std. manometer) is installed. If a secondary system is used, an hourly
log of manometer readings shall be maintained. A visual inspection of all the mesh pads used in
scrubbers must be performed semi-annually.

II.B.12.c.2 Recordkeeping:

The permittee shall maintain records of daily pressure drop monitoring in accordance with
provision I.S.1 of this permit. In addition, records of each non- routine (not regularly scheduled)
alarm occurrence shall be kept in accordance with provision I.S.1 of this permit and shall include:
A. Date & time of day of alarm
B. Problems encountered
C. Corrective action required

Records of each mesh pad/packing material inspection shall be kept which shall include:
A. Date of inspection
B. Problems encountered
C. Corrective action taken, if any

58

II.B.12.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The provisional compliant pressure drop range is posted on each gauge and
is included in the corresponding O&M Plan. During the inspection a random sampling of
pressure drops were read. Records of pressure drop are recorded daily and visual
inspections of the mesh pads are conducted semiannually. See Condition II.B.11.b.3 for a list
of applicable lines in Bldgs. 505 and 511.

II.B.13 Conditions on Degreasing and Solvent Cleaning Operations (Unit #17)

II.B.13.a Condition:

VOC emissions shall be no greater than 35 tons per 12-month rolling period combined for all immersion
cold cleaning equipment > 2 gallons, small incidental cold cleaning equipment <= 2 gallons, remote
reservoir cold cleaning equipment and open-top vapor degreasing equipment. [Origin: DAQE-
AN101210228-12]. [R307-401-8]

II.B.13.a.1 Monitoring:

VOC emissions shall be recorded by the 30th day of each month (28th for February) using the
consumption data from the previous 12 months. The permittee shall determine VOC emissions
monthly from immersion cold cleaning equipment > 2 gallons, remote reservoir cold cleaning
equipment, and open-top vapor degreasing equipment. The permittee shall determine VOC
emissions from small incidental cold cleaning equipment <= 2 gallons at least once per calendar
year using records described in this condition. These emissions will be added to the 12 month
rolling total VOC emission from immersion cold cleaning equipment > 2 gallons, remote reservoir
cold cleaning equipment, and open-top vapor degreasing equipment to determine the rolling 12
month total VOC emissions from the affected emission unit.

II.B.13.a.2 Recordkeeping:

Records of material shall be kept on a daily basis for immersion cold cleaning equipment > 2
gallons, remote reservoir cold cleaning equipment, and open-top vapor degreasing equipment.
Records of material shall be kept on an annual basis for small incidental cold cleaning equipment
<= 2 gallons.
1. Name of VOC-containing material
2. VOC content of material
3. SDS for each material
4. Quantity of material
5. Monitoring records required above

Records of material may be based on purchase and/or issue records. These records may be kept in
electronic form. Records of materials as applicable under the categories defined above shall be
kept for all periods when respective operations are performed.

II.B.13.a.3 Reporting:

59
There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – VOC emissions were 16.37 tons, as of July 31, 2024.

II.B.13.b Condition:

Flexibility Provisions - HAFB is allowed to add or modify any non-NESHAP equipment, provided that
each of the following conditions is met:
1. The proposed addition or modification does not cause an increase in the currently established base-
wide allowable VOC emissions limit of 35 tons per rolling 12 month total.
2. The new or modified installation or piece of equipment must meet the corresponding approved BACT
determination as provided in the subject approval order.
[Origin: DAQE-AN101210228-12]. [R307-401-8]

II.B.13.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.13.b.2 Recordkeeping:

Records of the notifications required by this condition shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.13.b.3 Reporting:

In addition to the reporting requirements in Section I of this permit, the permittee shall provide the
following notifications.
1. Notification of new non-NESHAP equipment installation (except industrial solvent cleaning
operations) must be submitted to DAQ seven days prior to such installation. Relocation or
removal of equipment which does not involve a modification (increase in emissions or
installation of new air pollution control equipment) will not require prior notification.
Notification shall include equipment size, type, location, conformity with BACT Standards,
estimated emissions, impact of estimated emissions from equipment to the emissions limit in
this permit.
2. A copy of any pertinent testing protocols, as required by the Pre-Approved BACT (i.e., initial
compliance testing for new pollution control equipment) must be included with notice
submittal. Where applicable, initial compliance testing must be performed within 180 days of
the start up of the new emission source.
3. The permittee shall generate a list of all operating degreasing cleaning equipment (equipment
list) (except for industrial solvent cleaning operations) that is subject to state and permit
standards within three working days upon request from a representative of the Director. This
equipment list shall contain degreasing cleaning equipment type, conformity with BACT
standards, location and equipment identification numbers.

Status: In compliance – Notifications for any flexibility provision, which include emission limits,
BACT and equipment lists, are submitted and reviewed by NSR. The last notice was
emailed on March 4, 2024.

II.B.14 Conditions on Immersion Cold Cleaning Equipment > 2 Gallons (Unit #17a).

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II.B.14.a Condition:

Each affected emission unit shall meet state standards of R307-335-4 with the following requirements:
1. Waste or used solvent shall be stored in covered containers. Waste solvents or waste materials that
contain solvents shall be disposed of by recycling, reclaiming, by incineration in an incinerator
approved to process hazardous materials, or by an alternate means approved by the director.
2. Hill shall drain solvent cleaned parts for 15 seconds or until dripping has stopped, whichever is longer.
Parts having cavities or blind holes shall be tipped or rotated while draining.
3. If the solvent volatility is greater than 4.3 kPa (33 mm Hg or 0.6 psi) measured at 38 degrees C (100
degrees F), or if solvent is heated above 50 degrees C (120 degrees F), then one of the following
control devices shall be used:
(a) freeboard that gives a freeboard ratio greater than 0.7;
(b) water cover if the solvent is insoluble in and heavier than water; or
(c) other systems of equivalent control, such as a refrigerated chiller or carbon adsorption.
4. A cover shall be installed which shall remain closed except during actual loading, unloading or
handling of parts in cleaner. The cover shall be designed so that it can be easily operated with one
hand if:
(a) The volatility of the solvent is greater than 2 kPa (15 mm Hg or 0.3 psi) measured at 38 degrees C
(100 degrees F),
(b) The solvent is agitated, or
(c) The solvent is heated.
5. If used, the solvent spray shall be a solid fluid stream at a pressure which does not cause excessive
splashing and may not be a fine, atomized or shower type spray.
6. Tanks, containers and all associated equipment shall be maintained in good operating condition, and
leaks shall be repaired immediately or the degreaser shall be shutdown.
[Origin: DAQE-AN101210228-12, R307-335-4]. [R307-401-8]

II.B.14.a.1 Monitoring:

Visual inspections shall be made at least once per semi-annual period to determine compliance
with this condition. Checklists used during each visual inspection shall contain the requirements
for the operation and maintenance of degreasing or solvent cleaning equipment.

II.B.14.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.14.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Visual inspection records are produced and/or compiled by Unit
Environmental Coordinators (UECs) in each facility. UECs conduct monthly inspections.
Semiannual oversight of the visual inspection records is conducted by the Base
Environmental staff and Standtec.

II.B.15 Conditions on Solvent Cleaning Operations (Unit #17b)

II.B.15.a Condition:

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(1) For all solvent cleaning operations, the permittee shall not use solvent products with a VOC content
greater than the amounts specified in Table 1.
Table 1 Solvent Cleaning VOC Limits
(excluding water and solvents exempt from the definition of volatile organic compounds found in R307-
101-2)
Solvent Cleaning Category VOC Limit (lb/gal) (g/L)
Coatings, adhesives and ink manufacturing 4.2 500
Electronic parts and components 4.2 500
Medical devices and pharmaceutical
Tools, equipment and machinery 6.7 800
General surface cleaning 5.0 600
Screening printing operations 4.2 500
Semiconductor tools, maintenance and equipment cleaning 6.7 800
Advanced composites manufacturing 6.7 800
(2) As an alternative to the limits in Table 1 and for all general miscellaneous cleaning operations, the
permittee may use a cleaning material with a VOC composite vapor pressure no greater than 8 mm
Hg at 20 degrees Celsius.
(3) The permittee shall store used applicators and shop towels in closed fireproof containers.

These requirements do not apply to the exemptions listed in R307-304-3, including operations that are
exclusively covered by Department of Defense military technical data and performed by a Department of
Defense contractor and/or on site at installations owned and/or operated by the United States Armed
Forces; janitorial cleaning; graffiti removal; solvent cleaning in laboratory tests and analysis and research
and development projects; cleaning with aerosol products; cleaning solvents that are defined as a
consumer product in R307-357; and cleaning of solar cells, laser hardware, scientific instruments, and
high-precision optics.
[Origin: R307-304]. [R307-304]

II.B.15.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.15.a.2 Recordkeeping:

The permittee shall maintain records demonstrating compliance with this condition. Records shall
include the VOC content or composite vapor pressure of the solvent product applied. Records
shall be maintained in accordance with Provision I.S.1 of this permit and shall be available to the
director upon request.

II.B.15.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – All VOCs are screened by the EESOH Authorization Process prior to
being accepted or used on HAFB. The EESOH Authorization Process follows the VOC
limits listed in Table 1.

II.B.16 Conditions on Remote Reservoir Cold Cleaning Equipment (Unit #17c).

II.B.16.a Condition:

62

Each affected emission unit shall meet state standards of R307-335-4 with the following requirements.
1. Waste or used solvent shall be stored in covered containers. Waste solvents or waste materials that
contain solvents shall be disposed of by recycling, reclaiming, by incineration in an incinerator
approved to process hazardous materials, or by an alternate means approved by the director.
2. Hill shall drain solvent cleaned parts for 15 seconds or until dripping has stopped, whichever is longer.
Parts having cavities or blind holes shall be tipped or rotated while draining.
3. Hill's remote-reservoir batch cold solvent cleaning machines shall employ a tightly fitting cover over
the solvent sump that shall be closed at all times except during the cleaning of parts.
4. Tanks, containers and all associated equipment shall be maintained in good operating condition and
leaks shall be repaired immediately or the degreaser shall be shutdown.
5. If used, the solvent spray shall be a solid fluid stream at a pressure which does not cause excessive
splashing and may not be a fine, atomized or shower type spray.
[Origin: DAQE-AN101210228-12, R307-335-4]. [R307-401-8]

II.B.16.a.1 Monitoring:

Visual inspections shall be made at least once per semi-annual period to determine compliance
with this condition. Checklists used during each visual inspection shall contain the requirements
for the operation and maintenance of degreasing or solvent cleaning equipment.

II.B.16.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.16.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – A random HAFB audit shows Compliance Assessment Summary reports
indicating that HAFB uses the above methods to control VOC emissions from the remote
solvent cleaning equipment. Monthly inspections are conducted at each individual location
where the units are housed. UECs conduct monthly inspections and semiannual oversite
inspections are conducted by Standtec.

II.B.17 Conditions on Open-Top Vapor Degreasing Equipment (Unit #17d).

II.B.17.a Condition:

Each affected emission unit shall meet state standards of R307-335-5 with the following requirements.
(1) Equip the vapor degreaser with a cover that can be opened and closed without disturbing the vapor
zone. The cover shall be closed except when processing workloads through the degreaser;
(2) Install one of the following control devices:
(a) Equipment necessary to sustain:
(i) a freeboard ratio greater than or equal to 0.75, and
(ii) a powered cover if the degreaser opening is greater than 1 square meter (10.8 square feet),
(b) Refrigerated chiller,
(c) Enclosed design (cover or door opens only when the dry part is actually entering or exiting the
degreaser),

63
(d) Carbon adsorption system, with ventilation greater than or equal to 15 cubic meters per minute
per square meter (50 cubic feet per minute per square foot) of air/vapor area when cover is open
and exhausting less than 25 parts per million of solvent averaged over one complete adsorption
cycle;
(3) Minimize solvent carryout by:
(a) Racking parts to allow complete drainage,
(b) Moving parts in and out of the degreaser at less than 3.3 meters per minute (11 feet per minute),
(c) Holding the parts in the vapor zone at least 30 seconds or until condensation ceases,
(d) Tipping out any pool of solvent on the cleaned parts before removal, and
(e) Allowing the parts to dry within the degreaser for at least 15 seconds or until visibly dry.
(4) Spray parts only in or below the vapor level,
(5) Not use ventilation fans near the degreaser opening, nor provide exhaust ventilation exceeding 20
cubic meters per minute per square meter (65 cubic feet per minute per square foot) in degreaser open
area, unless necessary to meet state and federal occupational, health, and safety requirements. The
exhaust ventilation flow indicated above shall be measured using EPA Reference Methods 1 and 2 of
40 CFR Part 60, or by EPA-approved equivalent state methods;
(6) Not degrease porous or absorbent materials, such as cloth, leather, wood or rope;
(7) Not allow workloads to occupy more than half of the degreaser's open top area;
(8) Ensure that solvent is not visually detectable in water exiting the water separator;
(9) Install safety switches on the following:
(a) Condenser flow switch and thermostat (shuts off sump heat if condenser coolant is either not
circulating or too warm); and
(b) Spray switch (shuts off spray pump if the vapor level drops excessively, i.e., greater than 10 cm
(4 inches); and
(10) Waste or used solvent shall be stored in covered containers.
(11) Tanks, containers and all associated equipment shall be maintained in good operating condition, and
leaks shall be repaired immediately or the degreaser shall be shutdown.

Open top vapor degreasers with an open area smaller than one square meter (10.8 square feet) are exempt
from (2)(b) and (d) above. [Origin: DAQE-AN101210228-12, R307-335-5]. [R307-335-5, R307-401-8]

II.B.17.a.1 Monitoring:

Visual inspections shall be made at least once per semi-annual period to determine compliance
with this condition. Checklists used during each visual inspection shall contain the requirements
for the operation and maintenance of degreasing or solvent cleaning equipment.

II.B.17.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.17.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – As of the date of this inspection, vapor degreasers subject to this condition
are listed as follows:

64
Bldg. Visual semi-
annually
AQUIS
238 Yes 43282
503B Yes 39636
503C1 Yes 42980
843M Yes 44232
238 Yes 45219

Compliance Assessment Summary Records confirm compliance with this condition.

II.B.18 Conditions on Cold Solvent Tanks, Building 2013 (Unit #18).

II.B.18.a Condition:

The permittee shall operate the affected emission units in accordance with the following conditions:
(1) A cover shall be installed on each tank. The covers shall remain closed except during actual periods
of operation of the tanks.
(2) An internal draining rack for cleaned parts shall be installed in both tanks. The parts shall be drained
until all dripping ceases.
(3) Waste or used solvent shall be stored in covered containers and disposed of by a method which
prevents its emission to the atmosphere.
(4) Tanks, containers, and all associated equipment shall be maintained in good operating condition and
leaks shall be repaired immediately.
(5) Written procedures for the operation and maintenance of the solvent cleaning equipment shall be
posted in an accessible and conspicuous location near the equipment.
(6) The cleaning solvent used shall be isopropyl alcohol.
[Origin: DAQE-353-88]. [R307-401-8]

II.B.18.a.1 Monitoring:

Visual inspection shall be made at least once per semi-annual period to determine compliance
with items 1 through 5 of this condition. Compliance with item 6 of this condition shall be
determined from records of invoices showing the solvent type purchased.

II.B.18.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.18.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – Building 2013 is the hydrazine overhaul area which is located in Weber County. This
building houses two immersion tanks (AQUIS 34230 and 34228). AQUIS 34228 is inactive
and AQUIS 34230 uses 815GD. The Safety Data Sheet (SDS) for this solvent shows a VOC
content of 0%. The underlying AO for this condition has been rescinded. Unit
Environmental Coordinators (UECs) monthly and semiannual oversight inspections are still
conducted of both tanks. This condition is no longer required.

65
II.B.19 Conditions on Curing and Burnout Ovens (Unit #20)

II.B.19.a Condition:

The permittee shall not exceed the following consumption limit:
A. 10.78 MMSCF/yr of natural gas consumed per rolling 12-month period for the curing and burnout
ovens.
[Origin: DAQE-AN101210261-18]. [R307-401-8]

II.B.19.a.1 Monitoring:

The amount of natural gas consumed shall be monitored on a monthly basis. By the 30th day of
each calendar month (28th day for February), the rolling 12-month total shall be calculated based
on the previous 12 months of data.

II.B.19.a.2 Recordkeeping:

Consumption or usage records shall be maintained for all periods of operation. These records can
utilize purchase records and/or operation logs as a basis for consumption determinations. All
records shall be maintained as described by Provision I.S.1 of this permit.

II.B.19.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – There are a total of three burn-out ovens (AQUIS 34356, 45018 and 45551)
on-site. The old #3 burn-out oven (AQUIS 34369) has been replaced with the new #3 burn-
out oven (AQUIS 45551). Natural gas consumed was 0.4 MMSCF/yr., as of July 31, 2024.

II.B.19.b Condition:

Visible emissions from natural gas-fired equipment shall be no greater than 10 percent opacity. [Origin:
DAQE-AN101210261-18]. [R307-401-8]

II.B.19.b.1 Monitoring:

In lieu of monitoring via visible emission observations, fuel usage shall be monitored to
demonstrate that only pipeline-quality natural gas is used as fuel.

II.B.19.b.2 Recordkeeping:

A copy of the required records shall be maintained in accordance with Provision I.S.1. of this
permit and made available to the Director upon request.

II.B.19.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

66
Status: In compliance – Fuel usage is monitored to confirm compliance with this condition. The
burn-out ovens only consume pipeline quality natural gas.

II.B.20 Conditions on Plastics Shop Dust Collector in Bldg 257 (Unit #65).

II.B.20.a Condition:

Visible emissions shall be no greater than 10 percent opacity. [Origin: DAQE-AN0101210206-10].
[R307-401-8]

II.B.20.a.1 Monitoring:

A visual opacity survey of each affected emission unit shall be performed once each month when
the unit operates, by an individual trained on the observation procedures of 40 CFR 60, Appendix
A, Method 9. The individual is not required to be a certified visible emissions observer. If any
visible emissions are observed, an opacity determination of that emission unit shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method 9.

II.B.20.a.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall also keep a log of the
following information for each opacity determination: date and time visual emissions observed,
emission point location and description, time and date of opacity test, and percent opacity. The
records required by this provision and all data required by 40 CFR 60, Appendix A, Method 9
shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.20.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Review of monthly opacity logs confirms compliance with this condition.
HAFB records the date, time of observation, location, description and percent opacity. This
condition applies to the DC-1 cyclone.

II.B.21 Conditions on IC Engine/Turbine Test Stands, Load Test System, and Generator Load Testing
Operations (Unit #23)

II.B.21.a Condition:

Visible emissions from the combustion of JP-4, JP-5, JP-6, JP-8, JP-10, Jet A, or equivalent fuels as
determined by the Director in the test stand/load test system, and diesel-fired engines shall be no greater
than 20 percent opacity, except for a period not exceeding three minutes in any hour for diesel-fired
operation. [Origin: DAQE-AN101210261-18, R307-305-3(3)]. [R307-401-8]

II.B.21.a.1 Monitoring:

Once per month while the unit is operating, the permittee shall apply one of the following
monitoring techniques to each JP-4, JP-5, JP-6, JP-8, JP-10, Jet A, or equivalent fuels as
determined by the Director, and diesel-fired affected emission unit:

67
A. A visual opacity survey conducted by an individual trained on the observation procedures of
40 CFR 60, Appendix A, Method 9. The observer does not have to be a certified Method 9
observer. If any visible emissions other than condensed water vapor are observed from an
emission point, an opacity determination of that emission point shall be performed by a
certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method 9
within 24 hours of the initial visual opacity survey or upon startup if the unit must be
shutdown for maintenance. If the unit is permanently removed from service, no follow-up
opacity determination is required.
B. A photogrametric opacity determination shall be conducted by an individual trained on the
observation procedures of 40 CFR 60, Appendix A, Method 9. The observer does not have to
be a certified Method 9 observer. If an opacity of 15 percent or more is detected by the
photogrametric analysis, an opacity determination of that emission point shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method
9 within 24 hours of the initial photogrametric opacity determination or upon startup if the
unit must be shutdown for maintenance. If the unit is permanently removed from service, no
follow-up opacity determination is required.

Either of the above monitoring techniques may be applied to different affected emission units or
to a given affected emission unit from month to month.

II.B.21.a.2 Recordkeeping:

The permittee shall maintain a log of visual opacity surveys and/or photogrametric observations
which include the following information for each affected emission points checked: the date and
time of each visual opacity survey or photogrametric observation, the specific monitoring
technique used (opacity survey or photogrametric observation) and the result of the opacity
monitoring. The records required by this provision and all data required by 40 CFR 60, Appendix
A, Method 9 shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.21.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The four RICE testing bays are located in building 843. HAFB complies
with item A. above. Monthly opacity logs were reviewed at time of inspection.

II.B.21.b Condition:

For each gasoline-fired affected emission unit, the permittee shall not allow, cause or permit the emissions
of visible pollutants. [Origin: R307-305-3(2)]. [R307-305-3(2)]

II.B.21.b.1 Monitoring:

The permittee shall apply one of the following monitoring techniques to each gasoline-fired
affected emission unit when in operation:
(1) Monthly visual opacity survey conducted by an individual trained on the observation
procedures of 40 CFR 60, Appendix A, Method 9. If any visible emissions other than
condensed water vapor are observed from an emission point, an opacity determination of that
emission point shall be performed in accordance with 40 CFR 52.128, Appendix A, Method
203C within 24 hours of the initial visual opacity survey or upon startup if the unit must be

68
shutdown for maintenance. If the unit must be permanently removed from service, no
follow-up opacity determination is required.
(2) Quarterly photogrametric opacity observations conducted by an individual trained on the
observation procedures of 40 CFR 60, Appendix A, Method 9. If an opacity is detected by the
photogrametric analysis, an opacity determination of that emission point shall be performed
in accordance with 40 CFR 52.128, Appendix A, Method 203C within 24 hours of the initial
photogrametric opacity observation or upon startup if the unit must be shutdown for
maintenance. If the unit must be permanently removed from service, no follow-up opacity
determination is required.
(3) An annual opacity determination performed in accordance with 40 CFR 52.128, Appendix A,
Method 203C.

The monitoring option selected can vary from unit to unit. For example, if quarterly
photogrametric opacity observations are being conducted for a given unit and the permittee cannot
conduct a photogrametric opacity observation in a quarter that unit operated, an opacity
determination conducted in accordance with the procedures of 40 CFR 52.128, Appendix A,
Method 203C will satisfy the monitoring requirements of this condition.

II.B.21.b.2 Recordkeeping:

The permittee shall maintain a log of monthly visual opacity surveys, quarterly photogrametric
observations, and/or annual opacity determinations which includes the following information for
each affected emission unit: the date and time of each visual opacity survey, photogrametric
opacity observation, annual opacity determination, the specific monitoring technique used (visual
opacity survey, 40 CFR 52.128, Appendix A, Method 203C, or photogrametric observation) and
the result of the opacity monitoring. The records required by this provision and all data required
by 40 CFR 52.128, Appendix A, Method 203C shall be maintained in accordance with Provision
I.S.1 of this permit.

II.B.21.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – Gasoline fired engines are currently not used or tested on base.

II.B.21.c Condition:

The permittee shall not exceed 40,000 gallons of combined fuels consumed (JP-4, JP-5, JP-6, JP-8, JP-10,
Jet A, diesel, or equivalent fuels as determined by the Director) by the IC engine/turbine test stands, load
test system, and generator testing equipment per rolling 12-month period. [Origin: DAQE-
AN101210261-18]. [R307-401-8]

II.B.21.c.1 Monitoring:

Combined fuel consumption shall be determined by fuel transfer orders and inventory records. By
the 30th day of each calendar month (28th day for February), a new rolling 12-month total shall
be calculated using data from the previous 12 months.

II.B.21.c.2 Recordkeeping:

69
Records of fuel consumption shall be kept on a monthly basis for each affected emission unit.
Results of monitoring shall be maintained as described in Provision I.S.1 of this permit.

II.B.21.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Combined fuel consumption was 2,418 gallons as of July 31, 2024.

II.B.21.d Condition:

Gasoline fuel consumed by the IC engine/turbine test stands shall not exceed 5,400 gallons per rolling 12-
month period. [Origin: DAQE-AN101210261-18]. [R307-401-8]

II.B.21.d.1 Monitoring:

Gasoline fuel consumption shall be determined by fuel transfer orders and inventory records. By
the 30th day of each calendar month (28th day for February), a new rolling 12-month total shall
be calculated using data from the previous 12 months.

II.B.21.d.2 Recordkeeping:

Records of fuel consumption shall be kept on a monthly basis for each affected emission unit.
Results of monitoring shall be maintained as described in Provision I.S.1 of this permit.

II.B.21.d.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Gasoline fuel consumption was 0.0 gallons as of July 31, 2024.

II.B.22 Conditions on Aircraft Fuel/Distillation System (Unit #24)

II.B.22.a Condition:

Extraction of JP-5, JP-6, JP-8, JP-10, Jet A, or equivalent fuels as determined by the Director shall be no
greater than 170,820 gallons per rolling 12-month period. [Origin: DAQE-AN101210250-17]. [R307-
401-8]

II.B.22.a.1 Monitoring:

By the 30th day (28th day for February) of each month, a rolling 12-month total shall be
determined using records from the previous 12 months.

II.B.22.a.2 Recordkeeping:

Records of all extracted fuel shall be kept in a log for all periods when the purge system is
operational. All records shall be maintained as described by Provision I.S.1 of this permit.

70
II.B.22.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Fuel extraction was 36,015 gallons as July 31, 2024.

II.B.23 Conditions on Carbon Brake Facility (Unit #25).

II.B.23.a Condition:

Visible emissions shall be no greater than 10 percent opacity. [Origin: DAQE-AN0121160-04]. [R307-
401-8]

II.B.23.a.1 Monitoring:

A visual opacity survey of each affected emission unit shall be performed on a monthly basis by
an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If
visible emissions other than steam are observed from an emission unit, an opacity determination
of that emission unit shall be performed by a certified observer within 24 hours of the initial
survey. The opacity determination shall be performed in accordance with 40 CFR 60, Appendix
A, Method 9.

II.B.23.a.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall maintain all the records
required by this provision and all data required by 40 CFR 60, Appendix A, Method 9 in
accordance with Provision I.S.1 of this permit.

II.B.23.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – The Carbon Brake Facility is no longer used. The facility may be brought back on-
line in the future.

II.B.23.b Condition:

The permittee shall not consume more than 80 gallons of P-13 (in the process tank) per rolling 12-month
period. [Origin: DAQE-AN0121160-04]. [R307-401-8]

II.B.23.b.1 Monitoring:

Records of consumption shall be kept on a daily basis when in operation. By the 30th of each
month (or the 28th for February), the permittee shall calculate a new rolling 12-month total using
data from the previous 12 months.

II.B.23.b.2 Recordkeeping:

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Daily consumption or usage records shall be maintained for all periods of operation. These
records can utilize purchase records, operation logs, and/or inventory records as a basis for
consumption determinations. Records shall be maintained as described by Provision I.S.1 of this
permit.

II.B.23.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – P-13 consumption was 0.0 gallons as of July 31, 2024.

II.B.24 Conditions on Surface Coating Operation Group (Unit #26).

II.B.24.a Condition:

VOC emissions shall not exceed 201.2 tons per rolling 12-month period from painting equipment or
operations, solvent uses associated with paint booths, and chemical depainting operations that fall into
categories A, B, C, D, E, F and G at HAFB main base and Little Mountain sites.
A Cleaning Operations Subject to NESHAP GG
B Primer and Topcoat Application Operations Subject to NESHAP GG
C Depainting (Chemical) Operations Subject to NESHAP GG
D Specialty Coating Application Operations to Aerospace Vehicles or Components
E Surface Coating Application Operations not Subject to NESHAP GG
F Specialty Coating Application Operations to non-Aerospace Vehicles or Components
G Depainting (Chemical) operations not Subject to NESHAP GG.
[Origin: DAQE-AN0101210200A-09]. [R307-401-8]

II.B.24.a.1 Monitoring:

By the 30th of each month (or the 28th for February), a rolling 12-month VOC total shall be
calculated using throughput data from the previous 12 calendar months.

II.B.24.a.2 Recordkeeping:

Records of material shall be kept on a daily basis for equipment and operations under categories
A, B, C, D, E. F and G except for equipment and operations exempted out of paint booths/bays in
condition II.B.24.c which shall be kept annually (except for exemption II.B.24.c(6) which is
daily).
1. Name of VOC-containing material
2. VOC content of material
3. SDS for each material
4. Quantity of material used
5. Monitoring records required above

Records of material usage may be based on purchase and/or issue records. Records of
consumption of the materials as applicable under the categories defined above shall be kept for all
periods when respective operations are performed. These records may be kept in electronic form
and shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.24.a.3 Reporting:

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There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – VOC emission as were 58.82 tons of July 31, 2024.

II.B.24.b Condition:

Flexibility Provisions - HAFB will be allowed to add or modify any paint booth, chemical stripping
operation, and/or any other piece of equipment associated with painting or chemical stripping at the main
base or Little Mountain, provided that each of the following conditions is met:
1. The proposed addition or modification does not cause an increase in the currently established base-
wide (including Little Mountain) allowable VOC emissions limit of 201.2 tons per rolling 12 month
total.
2. The new or modified installation or piece of equipment must meet the following corresponding Pre-
Approved BACT determination.
a) Aerospace Operations
i. Cleaning Operations
Compliance with the Maximum Achievable Control Technology (MACT) requirements for
Cleaning Operations, as described in 40 CFR 63.744, Subpart GG: National Emission
Standards for Aerospace Manufacturing and Rework Facilities satisfies the requirements of
Best Available Control Technology (BACT) for the Standards: Cleaning Operations.
ii. Primer and Topcoat application operations
Compliance with the Maximum Achievable Control Technology (MACT) requirements for
Primer and Topcoat application Operations, as described in 40 CFR 63.745, Subpart GG:
National Emission Standards for Aerospace Manufacturing and Rework Facilities satisfies
the requirements of Best Available Control Technology (BACT) for the Standards: Primer
and Topcoat application operations.
iii. Depainting Operations
Compliance with the Maximum Achievable Control Technology (MACT) requirements for
Depainting operations, as described in 40 CFR 63.746, Subpart GG: National Emission
Standards for Aerospace Manufacturing and Rework Facilities satisfies the requirements of
Best Available Control Technology (BACT) for the Standards: Depainting operations.
iv. Specialty Coating Operations
Compliance with the Maximum Achievable Control Technology (MACT) requirements for
Specialty Coating Operations, as described in Control Techniques Guidelines (CTG) Series -
Control of Volatile Organic Compound Emissions from Coating Operations at Aerospace
Manufacturing and Rework Operations dated December 1997 - 453/R-97-004.
b) Non-Aerospace Operations
i. Surface Coating operations
Compliance with the RACT requirements for Surface Coatings of Miscellaneous Metal Parts
and Products as described in R307-350. UAC satisfies the requirements of BACT for the
coating of non-aerospace surfaces. Operations involving coatings of Non-Aerospace surfaces
which do not meet the definition of Miscellaneous Metal Parts must undergo a complete
BACT analyses specific to that operation.
ii. Specialty coating operations
Hill Air Force Base has agreed to voluntarily limit the VOC content of all specialty coatings
on base to those levels specified by the CTG document Control of Volatile Organic
Compound Emissions from Coating Operations at Aerospace Manufacturing and Rework
Operations (see condition II.B.24.b.2a)iv), regardless of the type of surface to which the
specialty coating is applied. This voluntary RACT application also satisfies requirements of

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BACT for control of VOC emissions from the surface coating and cleaning of non-aerospace
vehicles and components.
iii. Touch-ups
Due to the brief nature of the emissions associated with touch-up operations, `No Controls' is
the appropriate BACT determination for these operations.
iv. Architectural Painting & Facility Maintenance
Architectural painting operations, including facility maintenance, are not covered under the
referenced Approval Order.
v. Chemically Depainting Operations
BACT requirements for chemical depainting and surface cleaning of non-aerospace surfaces,
consist of the use of solvent application technique that minimize emissions while providing
high transfer efficiency, such as low-pressure spray wands, airless delivery systems, rollers or
hand wiping applications. In addition, good work practice techniques for the proper handling
and storage of solvent and solvent laden rags, as described in R307-340-4, must be followed.
[Origin: DAQE-AN0101210200A-09]. [R307-401-8]

II.B.24.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.24.b.2 Recordkeeping:

Records of the notifications required by this condition shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.24.b.3 Reporting:

In addition to the reporting requirements in Section I of this permit, the permittee shall provide the
following notifications.
1. Notification (notify and go) of installations of new equipment must be submitted to UDAQ
seven days prior to the installation of the new equipment. Relocation or removal of equipment
which does not involve a modification (increase in emissions or installation of new air
pollution control equipment) will not require prior notification. Notification shall include
equipment size, type, location, whether it is applicable to federal standards, conformity with
BACT Standards, estimated emissions, and impact of estimated emissions from equipment to
the emissions limit in this permit.
2. A copy of any pertinent testing protocols, as required by the Pre-Approved BACT (i.e., initial
compliance testing for new pollution control equipment) must be included with the
notification submittal. Where applicable, initial compliance testing must be performed within
180 days of the start up of the new emission source.
3. An analysis of the applicability of offset requirements (offset analysis) and current actual
emissions for the painting and chemical depainting operations must be included with each
notify and go submission. The analysis shall take into account actual emissions from the
painting and chemical depainting operation and proposed actual emission increase due to the
addition of the new equipment.
4. Hill shall generate a list (equipment list) of all operating painting/depainting equipment that is
subject to state and federal rules within three working days upon request from a representative
of the director. This equipment list shall contain painting and depainting equipment type,
NESHAP's applicability, location and AQUIS ID's.

Status: In compliance – Notifications for any flexibility provision, which include emission limits,

74
BACT and equipment lists, are submitted and reviewed by NSR. The last notice, regarding
surface coating, was submitted in 2022.

II.B.24.c Condition:

All painting equipment and operations under the affected emission unit must be applied inside a paint
booth except for the following operations:
1. Painting performed using non-spray application methods
2. Painting with hand-held spray cans (aerosol paints)
3. Touch-up painting (defined as incidental painting to cover minor imperfections in the coating finish or
to achieve complete coverage. This definition includes out-of-cycle and out of sequence painting.)
4. Stenciling
5. Incidental painting as required for assembly or joining of dissimilar metal components as long as paint
is applied by either aerosol spray or a non-spray method.
6. Painting of items deemed by the Director as not technically feasible to be moved inside a paint booth.
This specifically includes museum aerospace displays, established touch-up operations, and assorted
painting operations at Little Mountain to support Little Mountain Test operations.
[Origin: DAQE-AN0101210200A-09]. [R307-401-8]

II.B.24.c.1 Monitoring:

On a semi-annual basis, the permittee shall review operations to verify compliance with this
condition.

II.B.24.c.2 Recordkeeping:

The permittee shall maintain operation exemption notes. These notes and results of monitoring
shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.24.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – This condition applies to non-NESHAP surface coating operations. HAFB
does maintain any exemption notes. HAFB no longer uses waterfall to control particulate
emissions, only paint arrestor particulate filters are used.

II.B.24.d Condition:

All non-NESHAP paint booths shall be equipped with a waterfall or a set of paint arrestor particulate
filters to control particulate emissions unless only the exempt operations: of painting performed using
non-spray application methods or painting with hand-held spray cans (aerosol paints) are conducted in the
booth. As applicable, all air exiting the booth shall pass through a control system before venting to the
atmosphere. [Origin: DAQE-AN0101210200A-09]. [R307-401-8]

II.B.24.d.1 Monitoring:

Except as described in this condition, while in operation visual inspections of all paint booth
filters and waterfalls shall be conducted weekly by designated personnel to determine compliance
with this condition. Specifically inspectors should check for:

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A) Proper installation of filter pads,
B) Good condition of filter pads,
C) Proper water flow through the waterfalls.

A weekly visual inspection is not required if the only operations conducted in the booth during a
week are the exempt operations of: painting performed using non-spray application methods or
painting with hand-held spray cans (aerosol paints).

II.B.24.d.2 Recordkeeping:

A log shall be kept on the results of visual inspections of the paint booth filters. The log and
results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.24.d.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – This condition applies to non-NESHAP surface coating operations. HAFB
does maintain any exemption notes. HAFB no longer uses waterfall to control particulate
emissions, only paint arrestor particulate filters are used.

II.B.24.e Condition:

For all applications of coatings to aerospace vehicles or components:
(1) The permittee shall not apply coatings with a VOC content greater than the amounts specified in
Table 1 to aerospace vehicles or components.
TABLE 1
(Values in grams of VOC per liter of material, minus water and exempt solvents (compounds not
classified as VOC as defined in R307-101-2), as applied)

Coating type VOC Content Limit (g/l)

Ablative Coating 600
Adhesion Promoter 890
Adhesive Bonding Primers Cured at 250 degrees F or below 850
Adhesive Bonding Primers Cured above 250 degrees F 1030
Commercial Interior Adhesive 760
Cyanoacrylate Adhesive 1,020
Fuel Tank Adhesive 620
Nonstructural Adhesive 360
Rocket Motor Bonding Adhesive 890
Rubber-based Adhesive 850
Structural Autoclavable Adhesive 60
Structural Nonautoclavable Adhesive 850
Antichafe Coating 660
Bearing Coating 620
Caulking and Smoothing Compounds 850
Chemical Agent-Resistant Coating 550
Clear Coating 720

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Commercial Exterior Aerodynamic Compatible Substrate Primer 780
Corrosion Prevention Compound 710
Cryogenic Flexible Primer 645
Dry Lubricative Material 880
Cryoprotective Coating 600
Electric or Radiation-Effect Coating 800
Electrostatic Discharge and Electromagnetic Interference (EMI) Coating 800
Elevated-Temperature Skydrol-Resistant Primer 740
Epoxy Polyamide Topcoat 660
Fire-Resistant (interior) Coating 800
Flexible Primer 640
Flight-Test Coatings - Missile or Single Use Aircraft 420
Flight-Test Coatings - All Other 840
Fuel-Tank Coating 720
General Aviation Rework Primer and Topcoat 540
High-Temperature Coating 850
Insulation Covering 740
Intermediate Release Coating 750
Lacquer 830
Bonding Maskant 1,230
Critical Use and Line Sealer Maskant 1,020
Seal Coat Maskant 1,230
Metalized Epoxy Coating 740
Mold Release 780
Optical Anti-Reflective Coating 750
Part Marking Coating 850
Pretreatment Coating 780
Primer 350
Rain Erosion Resistant Coating 850
Rocket Motor Nozzle Coating 660
Scale Inhibitor 880
Screen Print Ink 840
Extrudable/Rollable/Brushable Sealant 280
Sprayable Sealant 600
Silicone Insulation Material 850
Solid Film Lubricant 880
Specialized Function Coating 890
Temporary Protective Coating 320
Thermal Control Coating 800
Topcoat 420
Type I chemical milling maskant 622
Type II chemical milling maskants 160
Wet Fastener Installation Coating 675
Wing Coating 850

(2) The permittee shall not apply any coating to aerospace vehicles or components unless one of the
following application methods is used:
(a) Electrostatic application;
(b) Flow/curtain coat;
(c) Dip/electrodeposition coat;
(d) Roll coat;

77
(e) Brush coating;
(f) Cotton-tipped swab application;
(g) High-Volume, Low-Pressure (HVLP) Spray;
(h) Hand Application Methods; or
(i) Other coating application methods that achieve emission reductions equivalent to HVLP or
electrostatic spray application methods, as determined according to the requirements in 40 CFR
63.750(i).

(3) The following conditions are exempt from paragraph (2) above.
(a) Any situation that normally requires the use of an airbrush or an extension on the spray gun to
properly reach limited access spaces.
(b) The application of coatings that contain fillers that adversely affect atomization with HVLP
spray guns and that cannot be applied by any of the application methods specified in paragraph
(2).
(c) The application of coatings that normally have dried film thickness of less than 0.0013
centimeters (0.0005 inches) and that cannot be applied by any of the application methods
specified in paragraph (2).
(d) Airbrush application methods for stenciling, lettering, and other identification markings.
(e) Application of specialty coatings.

(4) This condition does not apply to the following:
(a) Cleaning and coating activities in research and development, quality control, laboratory testing,
and electronic parts and assemblies, except for cleaning and coating of completed assemblies;
(b) Manufacturing or rework operations involving space vehicles;
(c) Rework operations performed on antique aerospace vehicles or components;
(d) Touchup and repair operations;
(e) Hand-held aerosol spray cans up to 24 fluid ounces;
(f) Department of Defense classified coatings;
(g) Separate formulations that are used in volumes of less than 50 gallons per year subject to a
maximum exemption of 200 gallons in any calendar year;
(h) Adhesives with separate formulations that are used in volumes of less than 0.5 gallons on any
day or 10 gallons in any calendar year; and
(i) Cleaning of laser hardware, scientific instruments, and high-precision optics.
[Origin: R307-355-3, R307-355-5, R307-355-6]. [R307-355-3, R307-355-5, R307-355-6]

II.B.24.e.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.24.e.2 Recordkeeping:

The permittee shall maintain records demonstrating compliance with this condition. Records shall
include, but are not limited to, inventory and product data sheets of all coatings and solvents
subject to this condition. Records shall be maintained in accordance with Provision I.S.1 of this
permit and shall be available to the Director upon request.

II.B.24.e.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

78
Status: In compliance – All coating materials containing VOCs are screened by the EESOH
Authorization Process prior to being accepted or used on HAFB. The EESOH Authorization
Process follows the VOC limits listed in Table 1 above. Noncompliant materials used were
0.0 gallons as of July 31, 2024.

II.B.24.f Condition:

For all coatings and solvent cleaning operations on aerospace vehicles or components as defined in R307-
355-4:
(1) The permittee shall implement control techniques and work practices at all times to reduce VOC
emissions. Control techniques and work practices shall include, but are not limited to:
(a) Storing all VOC-containing coatings, adhesives, thinners, and coating-related waste materials in
closed containers, containers with activated carbon, or other control approved by the EPA
Administrator;
(b) Ensuring that mixing and storage containers used for VOC-containing coatings, adhesives,
thinners, and coating-related waste material are kept closed at all times except when depositing
or removing these materials unless a container has an activated carbon, or other control
approved by the EPA Administrator;
(c) Minimizing spills of VOC-containing coatings, adhesives, thinners, and coating-related waste
materials; and
(d) Conveying VOC-containing coatings, adhesives, thinners, and coating-related waste materials
from one location to another in closed container, in pipes, containers with activated carbon, or
other control approved by the EPA Administrator.
(2) This condition does not apply to the following:
(a) Cleaning and coating activities in research and development, quality control, laboratory testing,
and electronic parts and assemblies, except for cleaning and coating of completed assemblies;
(b) Manufacturing or rework operations involving space vehicles;
(c) Rework operations performed on antique aerospace vehicles or components;
(d) Touchup and repair operations;
(e) Hand-held aerosol spray cans up to 24 fluid ounces;
(f) Department of Defense classified coatings;
(g) Separate formulations that are used in volumes of less than 50 gallons per year subject to a
maximum exemption of 200 gallons in any calendar year;
(h) Adhesives with separate formulations that are used in volumes of less than 0.5 gallons on any
day or 10 gallons in any calendar year; and
(i) Cleaning of laser hardware, scientific instruments, and high-precision optics.
[Origin: R307-355-3, R307-355-7]. [R307-355-3, R307-355-7]

II.B.24.f.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.24.f.2 Recordkeeping:

The permittee shall keep records of the control techniques, work practices, as applicable, that are
used to reduce VOC emissions. The permittee shall maintain records demonstrating compliance
with this condition. Records shall include, but are not limited to, inventory and product data
sheets of all coatings and solvents subject to this condition. Records shall be maintained in
accordance with Provision I.S.1 of this permit and shall be available to the Director upon request.

II.B.24.f.3 Reporting:

79

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – UECs conduct monthly inspections of the on-site Hazmarts, which are
material distribution locations. Annual oversight inspections of the Hazmarts are also
conducted by Standtec. Finally, An Annual General Solvent Surface Coating inspection is
conducted. See status of condition II.B.24.e.3.

II.B.24.g Condition:

For all solvent cleaning on aerospace vehicles or components as defined in R307-355-4:
(1) Hand-wipe cleaning. Cleaning solvents (excluding water and exempt solvents) used in hand-wipe
cleaning operations on aerospace vehicles or components shall meet one of the following
requirements:
(a) Have a VOC composite vapor pressure less than or equal to 45 mm Hg at 68 degrees Fahrenheit;
(b) Have an aqueous cleaning solvent in which water is at least 80% of the solvent as applied; or
(c) Have a low vapor pressure hydrocarbon-based cleaning solvent.
(2) The following exemptions apply:
(a) Cleaning during the manufacture, assembly, installation, maintenance, or testing of components
of breathing oxygen systems that are exposed to the breathing oxygen.
(b) Cleaning during the manufacture, assembly, installation, maintenance, or testing of parts,
subassemblies, or assemblies that are exposed to strong oxidizers or reducers (e.g., nitrogen
tetroxide, liquid oxygen, hydrazine).
(c) Cleaning and surface activation prior to adhesive bonding.
(d) Cleaning of electronics parts and assemblies containing electronics parts.
(e) Cleaning of aircraft and ground support equipment fluid systems that are exposed to the fluid,
including air-to-air heat exchangers and hydraulic fluid systems.
(f) Cleaning of fuel cells, fuel tanks, and confined spaces.
(g) Surface cleaning of solar cells, coated optics, and thermal control surfaces.
(h) Cleaning during fabrication, assembly, installation, and maintenance of upholstery, curtains,
carpet, and other textile materials used on the interior of the aircraft.
(i) Cleaning of metallic and nonmetallic materials used in honeycomb cores during the manufacture
or maintenance of these cores, and cleaning of the completed cores used in the manufacture of
aerospace vehicles or components.
(j) Cleaning of aircraft transparencies, polycarbonate, or glass substrates.
(k) Cleaning and solvent usage associated with research and development, quality control, or
laboratory testing.
(l) Cleaning operations, using nonflammable liquids, conducted within five feet of energized
electrical systems.
(3) Flush cleaning. Cleaning solvents used in flush cleaning of aerospace vehicles or component parts,
assemblies and coating unit components must be emptied into an enclosed container or collection
system that is kept closed when not in use.
(4) Spray gun cleaning. All spray guns used to apply coatings to aerospace vehicles or components shall
be cleaned by one or more of the following methods:
(a) Enclosed system that is closed at all times except when inserting or removing the spray gun. If
leaks in the system are found, repairs shall be made as soon as practicable, but no later than 15
days after the leak was found. If the leak is not repaired by the 15th day, the cleaning solvent
shall be removed and the enclosed cleaner shall be shut down until the leak is repaired or its use
is permanently discontinued.
(b) Nonatomized cleaning.

80
(i) Spray guns shall be cleaned by placing cleaning solvent in the pressure pot and forcing it
through the gun with the atomizing cap in place.
(ii) The cleaning solvent from the spray gun shall be directed into a vat, drum, or other waste
container that is closed when not in use.
(c) Disassembled spray gun cleaning.
(i) Spray guns shall be cleaned by disassembling and cleaning the components by hand in a vat,
which shall remain closed at all times except when in use.
(ii) Spray gun components shall be soaked in a vat, which shall remain closed during the
soaking period and when not inserting or removing components.
(d) Atomizing spray into a waste container that is fitted with a device designed to capture atomized
solvent emissions.
(e) Cleaning of the nozzle tips of automated spray equipment systems, except for robotic systems
that can be programmed to spray into a closed container, shall be exempt from these
requirements.
(5) This condition does not apply to the following:
(a) Cleaning and coating activities in research and development, quality control, laboratory testing,
and electronic parts and assemblies, except for cleaning and coating of completed assemblies;
(b) Manufacturing or rework operations involving space vehicles;
(c) Rework operations performed on antique aerospace vehicles or components;
(d) Touchup and repair operations;
(e) Hand-held aerosol spray cans up to 24 fluid ounces;
(f) Department of Defense classified coatings;
(g) Separate formulations that are used in volumes of less than 50 gallons per year subject to a
maximum exemption of 200 gallons in any calendar year;
(h) Adhesives with separate formulations that are used in volumes of less than 0.5 gallons on any
day or 10 gallons in any calendar year; and
(i) Cleaning of laser hardware, scientific instruments, and high-precision optics.
[Origin: R307-355-3, R307-355-8]. [R307-355-3, R307-355-8]

II.B.24.g.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.24.g.2 Recordkeeping:

The permittee shall maintain records demonstrating compliance with this condition. Records shall
include, but are not limited to, inventory and product data sheets of all coatings and solvents
subject to this condition. Records shall be maintained in accordance with Provision I.S.1 of this
permit and shall be available to the Director upon request.

II.B.24.g.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Data sheets are reviewed as part of the EESOH Authorization Process. See
status of conditions II.B.24.e and II.B.24.f.

II.B.24.h Condition: [State-only Requirement]

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VOC emissions from painting and chemical depainting operations shall not exceed 0.58 tons per day
(tpd). [Origin: Utah SIP IX.H.12.q]. [SIP Section IX.H.12.q]

II.B.24.h.1 Monitoring:

By the 28th of each month, the permittee shall demonstrate compliance by calculating a rolling
30-day VOC emission average for the previous month. Records required for this permit condition
will also serve as monitoring.

II.B.24.h.2 Recordkeeping:

Records of VOC-containing materials used for painting and chemical depainting operations shall
be kept on a daily basis during all periods of operation. For each VOC-containing material
subject to this condition, records shall include, but are not limited to, inventory and product data
sheets, VOC content, and quantity of VOC-containing material used. The permittee shall keep
records of VOC calculations used for compliance demonstration. Records shall be maintained in
accordance with Provision I.S.1 of this permit.

II.B.24.h.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Daily VOC painting and chemical depainting operation emissions were
0.133 tons as of July 31, 2024.

II.B.25 Conditions on Aerospace NESHAP General (Unit #27).

II.B.25.a Condition:

Except as provided in 40 CFR 63.743(a)(10) and Table 1 of 40 CFR 63 subpart GG, the permittee shall
comply with the applicable requirements of:
40 CFR 63.4 Prohibited activities and circumvention;
40 CFR 63.5 Preconstruction review and notification requirements; and,
40 CFR 63.6 Compliance with standards and maintenance requirements.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.743(a)]

II.B.25.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.25.a.2 Recordkeeping:

The permittee shall fulfill the recordkeeping requirements contained in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.

82
(2) For each failure to meet an applicable standard, record and retain a list of the affected sources
or equipment, an estimate of the quantity of each regulated pollutant emitted over any
emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.25.a.3 Reporting:

The permittee shall fulfill the notification requirements contained in 40 CFR 63.9(a) through (e)
and (h) through (j), and the reporting requirements of the General Provisions, 40 CFR part 63,
subpart A, except as provided in 40 CFR 63.753 paragraphs (a)(2) through (a)(5). There are no
additional reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Air quality compliance procedures to document process modification are
found in HAFB’s Instruction 32-7002. Permit applications are submitted as required. And
Semiannual Aerospace NESHAP reports are submitted as required. The last Semiannual
Aerospace NESHAP report, for the First half of 2024, was submitted on August 2, 2024.
Details of compliance with Subpart GG are specified below.

II.B.25.b Condition:

At all times, the permittee shall operate and maintain any affected source, including associated air
pollution control equipment and monitoring equipment, in a manner consistent with safety and good air
pollution control practices for minimizing emissions. The general duty to minimize emissions does not
require the permittee to make any further efforts to reduce emissions if levels required by the applicable
standard have been achieved. Determination of whether a source is operating in compliance with
operation and maintenance requirements will be based on information available to the Director which may
include, but is not limited to, monitoring results, review of operation and maintenance procedures, review
of operation and maintenance records, and inspection of the source.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.743(e)]

II.B.25.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.25.b.2 Recordkeeping:

The permittee shall document activities performed to assure proper operation and maintenance.
The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected sources
or equipment, an estimate of the quantity of each regulated pollutant emitted over any
emission limit and a description of the method used to estimate the emissions.

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(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.25.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – A random audit of equipment and review of records and reports confirms
compliance. Activities are documented through daily usage logs, pressure drop and flow
meter logs, and malfunction logs are maintained. HAFB’s preventative maintenance (PM),
maintenance as required activities and corrective actions are tracked in FEMS.

II.B.25.c Condition:

If the permittee wishes to use an air pollution control device or equipment not listed in 40 CFR 63 Subpart
GG, they shall submit for approval by the Director, a description of the device or equipment, test data
verifying the performance of the device or equipment in controlling organic HAP and/or VOC emissions,
as appropriate, and specific operating parameters that will be monitored to establish compliance with the
standards not later than 120 days prior to the compliance date. [Origin: 40 CFR 63 Subpart GG, DAQE-
AN0101210200A-09]. [40 CFR 63.743(c)]

II.B.25.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.25.c.2 Recordkeeping:

Records demonstrating compliance with this condition, including copies of Director approvals,
shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.25.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – A request to use an alternative air pollution control device has not been submitted to
the DAQ to date. A request will be submitted to the DAQ, when required.

II.B.26 Conditions on Aerospace NESHAP Chemical Cleaning (Unit #28).

II.B.26.a Condition:

For hand-wipe cleaning subject to this condition (excluding cleaning of spray gun equipment performed in
accordance with 40 CFR 63.744(c)), the permittee shall use cleaning solvents that meet one of the
following requirements, as specified in paragraphs (b)(1), (b)(2), and (b)(3) of 40 CFR 63.744(b):
(1) Meet one of the following composition requirements:
(a) For aqueous solvents - Cleaning solvents in which water is the primary ingredient (≥ 80 percent
of cleaning solvent solution, as applied must be water). Detergents, surfactants, and bioenzyme

84
mixtures and nutrients may be combined with the water along with a variety of additives, such
as organic solvents (e.g. high boiling point alcohols), builders, saponifiers, inhibitors,
emulsifiers, pH buffers, and antifoaming agents. Aqueous solutions must have a flash point
greater than 93 deg C (200 deg F) (as reported by the manufacturer) and the solution must be
miscible with water.
(b) For hydrocarbon-based solvents - Cleaners that are composed of photochemically reactive
hydrocarbons and/or oxygenated hydrocarbons and have a maximum vapor pressure of 7 mm
Hg at 20 deg C (3.75 in. H2O and 68 deg F). These cleaners also contain no HAP.
(2) Have a composite vapor pressure of 45 mm Hg (24.1 in. H2O) or less at 20 deg C (68 deg F); or
(3) Demonstrate that the volume of hand-wipe solvents used in cleaning operations has been reduced by
at least 60% from a baseline adjusted for production. The baseline shall be established as part of an
approved alternative plan administered by the Director.
(4) The following cleaning operations are exempt from the hand-wipe cleaning requirements of 40 CFR
63.744:
(a) Cleaning during the manufacture, assembly, installation, maintenance, or testing of components
of breathing oxygen systems that are exposed to the breathing oxygen;
(b) Cleaning during the manufacture, assembly, installation, maintenance, or testing of parts,
subassemblies, or assemblies that are exposed to strong oxidizers or reducers (e.g., nitrogen
tetroxide, liquid oxygen, or hydrazine);
(c) Cleaning and surface activation prior to adhesive bonding;
(d) Cleaning of electronic parts and assemblies containing electronic parts;
(e) Cleaning of aircraft and ground support equipment fluid systems that are exposed to the fluid,
including air-to-air heat exchangers and hydraulic fluid systems;
(f) Cleaning of fuel cells, fuel tanks, and confined spaces;
(g) Surface cleaning of solar cells, coated optics, and thermal control surfaces;
(h) Cleaning during fabrication, assembly, installation, and maintenance of upholstery, curtains,
carpet, and other textile materials used in the interior of the aircraft;
(i) Cleaning of metallic and non-metallic materials used in honeycomb cores during the
manufacture or maintenance of these cores, and cleaning of the completed cores used in the
manufacture of aerospace vehicles or components;
(j) Cleaning of aircraft transparencies, polycarbonate, or glass substrates;
(k) Cleaning and cleaning solvent usage associated with research and development, quality control,
and laboratory testing;
(l) Cleaning operations, using nonflammable liquids, conducted within five feet of energized
electrical systems. Energized electrical systems means any AC or DC electrical circuit on an
assembled aircraft once electrical power is connected, including interior passenger and cargo
areas, wheel wells and tail sections; and,
(m) Cleaning operations identified as essential uses under the Montreal Protocol for which the
Administrator has allocated essential use allowances or exemptions in 40 CFR 82.4.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.744(b), 40 CFR 63.744(e)]

II.B.26.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.26.a.2 Recordkeeping:

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):

85
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected
sources or equipment, an estimate of the quantity of each regulated pollutant emitted over
any emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

In addition, for each new or existing cleaning operation subject to 40 CFR 63, subpart GG the
permittee shall record the following information, as appropriate, in accordance with paragraphs
(b)(1) through (b)(4) of 40 CFR 63.752(b):
(1) The name, vapor pressure, and documentation showing the organic HAP constituents of each
cleaning solvent used for affected cleaning operations at the facility.
(2) For each cleaning solvent used in hand-wipe cleaning operations that complies with the
composition requirements specified in 40 CFR 63.744(b)(1), as determined by 40 CFR
63.750(a), or for semi-aqueous cleaning solvents used for flush cleaning operations:
(i) The name of each cleaning solvent used;
(ii) All data and calculations that demonstrate that the cleaning solvent complies with one
of the composition requirements; and
(iii) Annual records of the volume of each solvent used, as determined from facility
purchase records or usage records.
(3) For each cleaning solvent used in hand-wipe cleaning operations that does not comply with
the composition requirements in 40 CFR 63.744(b)(1), but does comply with the composite
vapor pressure requirement in 40 CFR 63.744(b)(2) as calculated by 40 CFR 63.750(b):
(i) The name of each cleaning solvent used;
(ii) The composite vapor pressure of each cleaning solvent used;
(iii) All vapor pressure test results, if appropriate, data, and calculations used to determine
the composite vapor pressure of each cleaning solvent; and
(iv) The amount (in gallons) of each cleaning solvent used each month at each operation.
(4) For each cleaning solvent used for the exempt hand-wipe cleaning operations specified in 40
CFR 63.744(e) that does not conform to the vapor pressure or composition requirements of
40 CFR 63.744(b):
(i) The identity and amount (in gallons) of each cleaning solvent used each month at each
operation; and
(ii) A list of the processes set forth in 40 CFR 63.744(e) to which the cleaning operation
applies.
[Origin: DAQE-AN0101210200A-09, 40 CFR 63.750(a), (b), 40 CFR 63.752(a), (b)].

Records demonstrating compliance with this condition shall be maintained in accordance with
Provision I.S.1 of this permit.

II.B.26.a.3 Reporting:

The permittee shall submit semiannual reports occurring every 6 months from the date of the
notification of compliance status that identify:
(1) Any instance where a noncompliant cleaning solvent is used for a non-exempt hand-wipe
cleaning operation;
(2) A list of any new cleaning solvents used for hand-wipe cleaning in the previous 6 months
and, as appropriate, their composite vapor pressure or notification that they comply with the
composition requirements specified in 40 CFR 63.744(b)(1);

86
(3) If the hand-wipe cleaning operations have been in compliance for the semiannual period, a
statement that the cleaning operations have been in compliance with the applicable standards.
The semiannual report shall also include a statement of compliance signed by a responsible
company official certifying that the facility is in compliance with all applicable requirements.

Semiannual compliance reports for each type of operation subject to Subpart GG (i.e. cleaning,
primer and topcoat application, depainting, chemical milling maskant application) can be
combined into a single semiannual compliance report.

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – HAFB complies by meeting the composition requirements in items (1)(a),
(2) and (4) above. Semiannual Aerospace NESHAP reports are submitted as required. The
last Semiannual Aerospace NESHAP report, for the First half of 2024, was submitted on
August 2, 2024.

II.B.26.b Condition:

The permittee shall use one or more of the following techniques, or their equivalent, specified in 40 CFR
63.744(c) paragraphs (c)(1) through (c)(4) for all spray gun cleaning operations subject to this condition in
which spray guns are used for the application of coatings or any other materials that require the spray guns
to be cleaned:
(1) (i) Enclosed system. Clean the spray gun in an enclosed system that is closed at all times except
when inserting or removing the spray gun. Cleaning shall consist of forcing solvent through the
gun.
(ii) If leaks are found during the monthly inspection required in 40 CFR 63.751(a), repairs shall be
made as soon as practicable, but no later than 15 days after the leak was found. If the leak is
not repaired by the 15th day after detection, the cleaning solvent shall be removed, and the
enclosed cleaner shall be shut down until the leak is repaired or its use is permanently
discontinued.
(2) Nonatomized cleaning. Clean the spray gun by placing cleaning solvent in the pressure pot and
forcing it through the gun with the atomizing cap in place. No atomizing air is to be used. Direct the
cleaning solvent from the spray gun into a vat, drum, or other waste container that is closed when not
in use.
(3) Disassembled spray gun cleaning. Disassemble the spray gun and clean the components by hand in a
vat, which shall remain closed at all times except when in use. Alternatively, soak the components in
a vat, which shall remain closed during the soaking period and when not inserting or removing
components.
(4) Atomizing cleaning. Clean the spray gun by forcing the cleaning solvent through the gun and direct
the resulting atomized spray into a waste container that is fitted with a device designed to capture the
atomized cleaning solvent emissions.
(5) Cleaning of the nozzle tips of automated spray equipment systems, except for robotic systems that
can be programmed to spray into a closed container, shall be exempt from these requirements.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.744(c)]

II.B.26.b.1 Monitoring:

The permittee shall visually inspect the seals and all other potential sources of leaks associated
with each enclosed gun spray cleaner system subject to 40 CFR 63.744(c)(1), at least once per
month. Each inspection shall occur while the system is in operation. All detected leaks shall be

87
repaired within 15 days after detection. If the leak is not repaired by the 15th day after detection,
the solvent shall be removed and the enclosed cleaner shall be shut down until the cleaner is
repaired or its use is permanently discontinued.

Records required for this permit condition will also serve as monitoring.

II.B.26.b.2 Recordkeeping:

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f) except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected sources
or equipment, an estimate of the quantity of each regulated pollutant emitted over any
emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

In addition, for each new or existing cleaning operation subject to 40 CFR 63, subpart GG the
permittee shall record the following information as specified in paragraph (b)(5) of 40 CFR
63.752(b):

A record of all leaks from enclosed spray gun cleaners identified pursuant to 40 CFR 63.751(a)
that includes for each leak found:
(i) Source identification;
(ii) Date leak was discovered; and
(iii) Date leak was repaired.

Records demonstrating compliance with this condition shall be maintained in accordance with
Provision I.S.1 of this permit.

II.B.26.b.3 Reporting:

The permittee shall submit semiannual reports occurring every 6 months from the date of the
notification of compliance status that identify:
(1) Any instance where a noncompliant spray gun cleaning method is used;
(2) Any instance where a leaking enclosed spray gun cleaner remains unrepaired and in use for
more than 15 days; and
(3) If the spray gun cleaning operations have been in compliance for the semiannual period, a
statement that the cleaning operations have been in compliance with the applicable standards.
The semiannual report shall also include a statement of compliance signed by a responsible
company official certifying that the facility is in compliance with all applicable requirements.

Semiannual compliance reports for each type of operation subject to Subpart GG (i.e. cleaning,
primer and topcoat application, depainting, chemical milling maskant application) can be
combined into a single semiannual compliance report.

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

88

Status: In compliance – HAFB uses the enclosed systems in items (1) flushing method and (3)
emersion method for cleaning spray guns. HAFB maintains a “NESHAP” paint booth
operator/supervisor inspection form that documents that spray guns operated leak free.
Inspections are preformed weekly by operations and reviewed monthly by UEC.
Semiannual oversight inspections are also conducted by Standtec. Semiannual Aerospace
NESHAP reports are submitted as required. The last Semiannual Aerospace NESHAP
report, for the First half of 2024, was submitted on August 2, 2024.

II.B.26.c Condition:

For operations subject to this condition, each time aerospace parts or assemblies, or components of a
coating unit (with the exception of spray guns) are flush cleaned, the permittee shall empty the used
cleaning solvent into:
1. an enclosed container, or
2. a collection system that is kept closed when not in use, or
3. into a system with equivalent emission control
unless the flush cleaning operation subject to 40 CFR 63, Subpart GG uses either a cleaning solvent listed
in Table 1 of 40 CFR 63.744, or a semi-aqueous cleaning solvent. [Origin: 40 CFR 63 Subpart GG,
DAQE-AN0101210200A-09]. [40 CFR 63.744(d)]

II.B.26.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.26.c.2 Recordkeeping:

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10 (a), (b), (d),
and (f) except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected
sources or equipment, an estimate of the quantity of each regulated pollutant emitted over
any emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of
operation.

In addition, for each cleaning operation subject to 40 CFR 63, Subpart GG, the permittee shall
record the following information, as appropriate, in accordance with paragraphs (b)(1) and (b)(2)
of 40 CFR 63.752(b).
(1) The name, vapor pressure, and documentation showing the organic HAP constituents of each
cleaning solvent used for affected cleaning operations at the facility.
(2) For each cleaning solvent used in hand-wipe cleaning operations that complies with the
composition requirements specified in 40 CFR 63.744(b)(1) or for semi-aqueous cleaning
solvents used for flush cleaning operations:
(i) The name of each cleaning solvent used
(ii) All data and calculations that demonstrate that the cleaning solvent complies with one of
the composition requirements; and

89
(iii) Annual records of the volume of each solvent used, as determined from facility purchase
records or usage records.

Records demonstrating compliance with this condition shall be maintained in accordance with
Provision I.S.1 of this permit.

II.B.26.c.3 Reporting:

The permittee shall submit semiannual reports occurring every 6 months from the date of the
notification of compliance status that certifies that the flush cleaning operations have been in
compliance with the applicable standards for the semiannual period. The semiannual report shall
also include a statement of compliance signed by a responsible company official certifying that
the facility is in compliance with all applicable requirements.

Semiannual compliance reports for each type of operation subject to Subpart GG (i.e. cleaning,
primer and topcoat application, depainting, chemical milling maskant application) can be
combined into a single semiannual compliance report.

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – Only small flush bottles are used occasionally. There are no reporting
requirements for this process. This process is tracked in EESOH and included in the
Semiannual Aerospace NESHAP reports. The last Semiannual Aerospace NESHAP report,
for the First half of 2024, was submitted on August 2, 2024.

II.B.26.d Condition:

All cleaning operations subject to this condition shall comply with the following housekeeping
requirements unless they use cleaning solvents that meet the requirements for aqueous or hydrocarbon-
based cleaners identified in Table 1 of 40 CFR 63.744 or meets the definition of 'Non-HAP material' in 40
CFR 63.742 by containing no more than 0.1 percent by mass of any individual organic HAP that is an
Occupational Safety and Health Administration-defined carcinogen as specified in 29 CFR
1910.1200(d)(4) and no more than 1.0 percent by mass for any other individual HAP:
(1) Place used solvent-laden cloth, paper, or any other absorbent applicators used for cleaning in bags or
other closed containers. Ensure that these bags and containers are kept closed at all times except when
depositing or removing these materials from the container. Use bags and containers of such design so
as to contain the vapors of the cleaning solvent. Cotton-tipped swabs used for very small cleaning
operations are exempt from this requirement.
(2) Store fresh and spent cleaning solvents, except semi-aqueous solvent cleaners, used in aerospace
cleaning operations in closed containers.
(3) Conduct the handling and transfer of cleaning solvents to or from enclosed systems, vats, waste
containers, and other cleaning operation equipment that hold or store fresh or spent cleaning solvents
in such a manner that minimizes spills.
The requirements above do not apply to spent cleaning solvents, and solvent-laden applicators that are
subject to and handled and stored in compliance with 40 CFR parts 262 through 268 (including the air
emission control requirements in 40 CFR part 265, subpart CC).
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.744(a)]

II.B.26.d.1 Monitoring:

90
A visual inspection of each operation (building or weapon system) shall be made monthly for
proper control techniques and work practices to ensure: minimization of fugitive VOC emissions,
equipment is in good operating condition, and the proper disposal of waste solvents.

II.B.26.d.2 Recordkeeping:

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected sources
or equipment, an estimate of the quantity of each regulated pollutant emitted over any
emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

The permittee shall record the date, operation, and results of each inspection required under this
provision. The records shall be maintained in accordance with provisions of Section I.S.1 of this
permit.

II.B.26.d.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB maintains weekly logs for housekeeping. Weekly inspections are
conducted by operations and monthly inspections are completed by UECs. Semiannual
oversite inspections are conducted by Standtec. This process is tracked in EESOH.

II.B.27 Conditions on Aerospace NESHAP Coating (Unit #29).

II.B.27.a Condition:

For each primer, topcoat, or specialty coating application operation subject to this condition in which any
of the coatings that are spray applied (as defined in 40 CFR 63.742) and contain inorganic HAPs and
except as provided in paragraph (4) of this condition, the permittee shall comply with the following
applicable requirements, as specified in 40 CFR 63.745(g)(1) through (g)(3):
(1) Apply these coatings in a booth, hangar, or portable enclosure in which air flow is directed
downward onto or across the part or assembly being coated and exhausted through one or more
outlets.
(2) Control the air stream from this operation as follows:
(i) For existing sources, the permittee must choose one of the following:
(A) Before exhausting it to the atmosphere, pass the air stream through a dry particulate filter
system certified using the methods described in 40 CFR 63.750(o) to meet or exceed the
following efficiency data points in Table 2 and 3: or

91
Table 2- Two-Stage Arrestor; Liquid Phase Challenge for Existing Sources
Filtration Efficiency Requirement Aerodynamic Particle Size Range (micron)
> 90 % > 5.7
> 50 % > 4.1
> 10 % > 2.2

Table 3- Two-Stage Arrestor; Solid Phase Challenge for Existing Sources
Filtration Efficiency Requirement Aerodynamic Particle Size Range (micron)
> 90 % > 8.1
> 50 % > 5.0
> 10 % > 2.6

(B) Before exhausting it to the atmosphere, pass the air stream through a waterwash system
that shall remain in operation during all coating application operations; or
(C) Before exhausting it to the atmosphere, pass the air stream through an air pollution
control system that meets or exceeds the efficiency data points in Tables 2 and 3 of this
section and is approved by the Director.
(ii) For new sources, either:
(A) Before exhausting it to the atmosphere, pass the air stream through a dry particulate filter
system certified using the methods described in 40 CFR 63.750(o) to meet or exceed the
following efficiency data points in Table 4 and 5: or

Table 4- Three-Stage Arrestor; Liquid Phase Challenge for New Sources
Filtration Efficiency Requirement Aerodynamic Particle Size Range (micron)
> 95 % > 2.0
> 80 % > 1.0
> 65 % > 0.42

Table 5- Three-Stage Arrestor; Solid Phase Challenge for New Sources
Filtration Efficiency Requirement Aerodynamic Particle Size Range (micron)
> 95 % > 2.5
> 85 % > 1.1
> 75 % > 0.70

(B) Before exhausting it to the atmosphere, pass the air stream through an air pollution
control system that meets or exceeds the efficiency data points in Tables 4 and 5 of this
section and is approved by the Director.
(iii) New sources that have commenced construction or reconstruction after June 6, 1994 but prior
to October 29, 1996 may comply with the following requirements in lieu of the requirements in
paragraph(2)(ii):
(A) Pass the air stream through either a two-stage dry particulate filter system or a waterwash
system before exhausting it to the atmosphere.
(B) If the primer, topcoat, or specialty coating contains chromium or cadmium, control shall
consist of a HEPA filter system, three-stage filter system, or other control system
equivalent to the three-stage filter system as approved by the Director.
(iv) If a dry particulate filter system is used, the following requirements shall be met:
(A) Maintain the system in good working order;
(B) Install a differential pressure gauge across the filter banks;

92
(C) Continuously monitor the pressure drop across the filter and read and record the pressure
drop once per shift, or install an interlock system that will automatically shut down the
coating spray application system if the pressure drop exceeds or falls below the filter
manufacturer's recommended limit(s); and
(D) Take corrective action when the pressure drop exceeds or falls below the filter
manufacturer's recommended limit(s).
(v) If a conventional waterwash system is used, continuously monitor the water flow rate and read
and record the water flow rate once per shift, or install an interlock system that will
automatically shut down the coating spray application system if the water flow rate falls below
or exceeds the limit(s) specified by the booth manufacturer or in locally prepared operating
procedures. If a pumpless system is used, continuously monitor the booth parameter(s) that
indicate performance of the booth per the manufacturer's recommendations to maintain the
booth within the acceptable operating efficiency range and read and record the parameters once
per shift, or install an interlock system that will automatically shut down the coating spray
application system if the booth parameters are outside the parameter range in the
manufacturer's recommendations.
(3) If the pressure drop across the dry particulate filter system, as recorded pursuant to 40 CFR
63.752(d)(1), is outside the limit(s) specified by the filter manufacturer or in locally prepared
operating procedures, shut down the operation immediately and take corrective action. If the water
path in the waterwash system fails the visual continuity/flow characteristics check, or the water flow
rate recorded pursuant to 40 CFR 63.752(d)(2) exceeds the limit(s) specified by the booth
manufacturer or in locally prepared operating procedures, or the booth manufacturer's or locally
prepared maintenance procedures for the filter or waterwash system have not been performed as
scheduled, shut down the operation immediately and take corrective action. The operation shall not
be resumed until the pressure drop or water flow rate is returned within the specified limit(s).
(4) The requirements of paragraphs(1) through (3), specified above, do not apply to the following:
(i) Touch-up of scratched surfaces or damaged paint;
(ii) Hole daubing for fasteners;
(iii) Touch-up of trimmed edges;
(iv) Coating prior to joining dissimilar metal components;
(v) Stencil operations performed by brush or airbrush;
(vi) Section joining;
(vii) Touch-up of bushings and other similar parts;
(viii) Sealant detackifying;
(ix) Spray application of primers, topcoats, and specialty coatings in an area identified in a Title V
permit, where the Director has determined that it is not technically feasible to spray apply
coatings to the parts in a booth;
(x) The use of hand-held non-refillable aerosol containers; and
(xi) The spray application of no more than 3.0 fluid ounces of coating in a single application (i.e.,
the total volume of a single coating formulation applied during any one day to any one
aerospace vehicle or component) from a hand-held device with a paint cup capacity that is
equal to or less than 3.0 fluid ounces (89 cubic centimeters). Using multiple small paint cups
or refilling a small paint cup to apply more than 3.0 fluid ounces under the requirements of this
paragraph is prohibited. If a paint cup liner is used in a reusable holder or cup, then the holder
or cup must be designed to hold a liner with a capacity of no more than 3.0 fluid ounces. For
example, under the requirements of this paragraph, a 3.0 ounce liner cannot be used in a holder
that can also be used with a 6.0 ounce liner.
(5) For a primer, topcoat, or specialty coating application operation that emits inorganic HAP, the
operation is in compliance when:
(i) It is operated according to the requirements specified in paragraphs (1) through (3) of this
condition; and

93
(ii) It is shut down immediately whenever the pressure drop or water flow rate is outside the
limit(s) established for them and is not restarted until the pressure drop or water flow rate is
returned within these limit(s), as required under paragraph (3) of this condition.
(6) Dry particulate filters used to comply with paragraph (2) of this condition must be certified by the
filter manufacturer or distributor, paint/depainting booth supplier, and/or the permittee using method
319 in 40 CFR 63, appendix A, to meet or exceed the efficiency data points in paragraph 2(i)(A) and
2(ii)(A) of this condition for existing or new sources respectively.
Specialty coating application operations that are existing on February 17, 2015 shall be in compliance
with the requirements of this condition on or before December 7, 2018. Specialty coating application
operations that begin construction or reconstruction after February 17, 2015 and all primer and topcoat
operations shall be in compliance with the requirements of this condition upon startup.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.745(g), 40 CFR 63.749(a),
40 CFR 63.749(e), 40 CFR 63.750(o)]

II.B.27.a.1 Monitoring:

When a dry particulate filter system is used to meet the requirements of 40 CFR 63.745(g)(2), the
permittee shall, while the primer, topcoat, and specialty coating application operations are
occurring, continuously monitor the pressure drop across the system and read and record the
pressure drop once per shift following the recordkeeping requirements of 40 CFR 63.752(d), or
install an interlock system as specified in 40 CFR 63.745(g)(2)(iv)(C).

When a conventional waterwash system is used to meet the requirements of 40 CFR 63.745(g)(2),
the permittee shall, while the primer or topcoat application operations are occurring, continuously
monitor the water flow rate through the system and read and record the water flow rate once per
shift following the recordkeeping requirements of 40 CFR 63.752(d), or install an interlock
system as specified in 40 CFR 63.745(g)(2)(v).

When a pumpless waterwash system is used to meet the requirements of 40 CFR 63.745(g)(2), the
permittee shall, while primer, topcoat, and specialty coating application operations are occurring,
measure and record the parameter(s) recommended by the booth manufacturer that indicate booth
performance once per shift, following the recordkeeping requirements of 40 CFR 63.752(d), or
install an interlock system as specified in 40 CFR 63.745(g)(2)(v).

II.B.27.a.2 Recordkeeping:

If the permittee is complying with 40 CFR 63.745(g) for the control of inorganic HAP emissions
from primer, topcoat, and specialty coating application operations through the use of a dry
particulate filter system or a HEPA filter system, they shall record the pressure drop across the
operating system once each shift during which coating operations occur.

If the permittee is complying with 40 CFR 63.745(g) through the use of a conventional waterwash
system, they shall record the water flow rate through the operating system once each shift during
which coating operations occur.

If the permittee is complying with 40 CFR 63.745(g) through the use of a pumpless waterwash
system, they shall record the parameter(s) recommended by the booth manufacturer that indicate
the performance of the booth once each shift during which coating operations occur.

A log including the acceptable limit(s) of pressure drop, water flow rate, or for the pumpless
waterwash booth, the booth manufacturer recommended parameter(s) that indicate the booth

94
performance, as applicable, shall be maintained. The acceptable limits shall be as specified by the
filter or booth manufacturer or in locally prepared operating procedures.

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected sources
or equipment, an estimate of the quantity of each regulated pollutant emitted over any
emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.27.a.3 Reporting:

(1) The permittee shall submit semiannual reports occurring every 6 months from the date of the
notification of compliance status that identify:
(a) Each exceedance of the operating parameter(s) established for the control device under
the initial performance test during which compliance was demonstrated;
(b) All times when a primer, topcoat, or specialty coating application operation was not
immediately shut down when the pressure drop across a dry particulate filter or HEPA
filter system, the water flow rate through a conventional waterwash system, or the
recommended parameter(s) that indicate the booth performance for pumpless systems,
as appropriate, was outside the limit(s) specified by the filter or booth manufacturer or
in locally prepared operating procedures;
(c) If the coating operations have been in compliance for the semiannual period, a
statement that the coating operations have been in compliance with the applicable
standards; and,

The semiannual report shall also include a statement of compliance signed by a responsible
company official certifying that the facility is in compliance with all applicable
requirements.

Semiannual compliance reports for each type of operation subject to Subpart GG (i.e.
cleaning, primer and topcoat application, depainting, chemical milling maskant application)
can be combined into a single semiannual compliance report.

(2) The permittee shall submit annual reports beginning 12 months after the date of the
notification of compliance status listing the number of times the pressure drop or water flow
rate for each dry filter or waterwash system, as applicable, was outside the limit(s) specified
by the filter or booth manufacturer or in locally prepared operating procedures.

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – All coatings are applied in paint booths, unless a written exemption is given.
Booths and hangars are constructed so that air flow is directed as required. Air streams are

95
controlled by dry particulate filters. Only NESHAP Method 319 compliant, three stage A-
3000 filters are used. Installation of new systems, or any modifications of new systems, or
any modifications to existing systems are reviewed by HAFB to ensure compliance with this
condition. Systems are operated in accordance with an O&M Plan. A manometer to record
pressure drop is installed on each system. Manometer/Dry Filter System forms are
completed in the event that the pressure drop across a dry filter system. Corrective actions
are documented on maintenance records. For primer and topcoat applications, paint booths
are shut down when pressure drops or flow rates are outside operating parameters specified
on each unit. Records of pressure drop flow meter and maintained are maintained.
Waterwash systems are no longer used. Paint booths are tracked with APIMS. Semiannual
Aerospace NESHAP reports are submitted as required. The last Semiannual Aerospace
NESHAP report, for the First half of 2024, was submitted on August 2, 2024.

II.B.27.b Condition:

Except as provided in paragraph (3), the permittee shall comply with the following application
requirements specified in 40 CFR 63.745 (f)(1) and (f)(2), for all primer, topcoat (including self-priming
topcoats), or specialty coating application operations subject to this condition in which any of the coatings
contain organic HAP or VOCs.
(1) All spray applied primers, topcoats (including self-priming topcoats), and specialty coating shall be
applied using one or more of the following spray application techniques, as specified in paragraphs
40 CFR 63.745 (f)(1)(i) through (f)(1)(v):
(i) High volume low pressure (HVLP) spraying;
(ii) Electrostatic spray application;
(iii) Airless spray application;
(iv) Air-assisted airless spray application, or;
(v) Any other coating spray application methods that achieve emission reductions or a transfer
efficiency equivalent to or better than HVLP spray, electrostatic spray, airless spray, or air-
assisted airless spray application methods, as determined according to the requirements in 40
CFR 63.750(i).
(2) All coating spray application devices used to apply primers, topcoats (including self-priming
topcoats), or specialty coatings shall be operated according to company procedures, local specified
operating procedures, and/or the manufacturer's specifications, whichever is most stringent, at all
times. Spray application equipment modified by the facility shall maintain a transfer efficiency
equivalent to HVLP spray, electrostatic spray, airless spray, or air-assisted airless spray application
techniques.
(3) The following situations are exempt from the requirements of paragraph (1):
(i) Any situation that normally requires an extension on the spray gun to properly reach limited
access spaces;
(ii) The application of coatings that contain fillers that adversely affect atomization with HVLP
spray guns;
(iii) The application of coatings that normally have a dried film thickness of less than 0.0013
centimeter (0.0005 in.) and that the permitting agency has determined cannot be applied by any
of the application methods specified in paragraph(1);
(iv) The use of airbrush application methods for stenciling, lettering, and other identification
markings, and the spray application of no more than 3.0 fluid ounces of coating in a single
application (i.e., the total volume of a single coating formulation applied during any one day to
any one aerospace vehicle or component) from a hand-held device with a paint cup capacity
that is equal to or less than 3.0 fluid ounces (89 cubic centimeters). Using multiple small paint
cups or refilling a small paint cup to apply more than 3.0 fluid ounces under the requirements
of this paragraph is prohibited. If a paint cup liner is used in a reusable holder or cup, then the

96
holder or cup must be designed to hold a liner with a capacity of no more than 3.0 fluid ounces.
For example, a 3.0 ounce liner cannot be used in a holder that can also be used with a 6.0 ounce
liner under the requirements of this paragraph;
(v) The use of hand-held non-refillable aerosol containers;
(vi) Touch-up and repair operations;
(vii) Adhesives, sealants, maskants, caulking materials, and inks; and
(viii) The application of coatings that contain less than 20 grams of VOC per liter of coating.

If the permittee is seeking to use an alternative application method (as allowed in 40 CFR
63.745(f)(1)(v)) in complying with the standards for primers, topcoats, and specialty coatings, he/she shall
use the procedures specified in 40 CFR 63.750 paragraphs(i)(2)(i) and (i)(2)(ii) or (i)(2)(iii) to determine
the organic HAP and VOC emission levels of the alternative application technique as compared to either
HVLP, electrostatic spray application methods, air-assisted airless application methods, or airless
application methods. For specialty coatings, the permittee may use any other coating application method
capable of achieving emission reductions or a transfer efficiency equivalent to or better than that provided
by HVLP, electrostatic spray, air-assisted airless, or airless application. If using an application method
pursuant to 40 CFR 63.750(i)(2)(ii), the permittee shall maintain records demonstrating the transfer
efficiency achieved.

Specialty coating application operations that are existing on February 17, 2015 shall be in compliance
with the requirements of this condition on or before December 7, 2018. Specialty coating application
operations that begin construction or reconstruction after February 17, 2015 and all primer and topcoat
operations shall be in compliance with the requirements of this condition upon startup.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.745(f), 40 CFR 63.749(a)]

II.B.27.b.1 Monitoring:

At least every six months, the permittee shall review each primer and topcoat application
operation to verify compliance with the requirements of this condition.

II.B.27.b.2 Recordkeeping:

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected sources
or equipment, an estimate of the quantity of each regulated pollutant emitted over any
emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

An operator's log shall be maintained which shall include the results of the monitoring required.
All records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.27.b.3 Reporting:

The permittee shall submit semiannual reports occurring every 6 months from the date of the
notification of compliance status that certifies that the coating operations have been in compliance

97
with the applicable standards for the semiannual period. The semiannual report shall also include
a statement of compliance signed by a responsible company official certifying that the facility is
in compliance with all applicable requirements.

Semiannual compliance reports for each type of operation subject to Subpart GG (i.e. cleaning,
primer and topcoat application, depainting, chemical milling maskant application) can be
combined into a single semiannual compliance report.

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – Application techniques are documented in usage logs. Application devices
are operated in accordance with manufacturer specifications or locally prepared plans.
Semi-annual reviews are performed by HAFB. Weekly inspections are conducted by
operations and monthly inspections are completed by UECs. Semiannual oversite
inspections are conducted by Standtec. Semiannual Aerospace NESHAP reports are
submitted as required. The last Semiannual Aerospace NESHAP report, for the First half of
2024, was submitted on August 2, 2024.

II.B.27.c Condition:

For each primer, topcoat, or specialty coating application operations subject to this condition that uses
coatings that are uncontrolled (no control device is used to reduce organic HAP emissions from the
operation), the permittee shall comply with the following organic HAP and VOC content limits, as
specified in paragraphs (c)(1) through (c)(6) of 40 CFR 63.745(c) :
(1) Organic HAP emissions from primers shall be limited to an organic HAP content level of no more
than: 350 g/L (2.9 lb/gal) of primer (less water) as applied or 540 g/L (4.5 lb/gal) of primer (less
water) as applied for general aviation rework facilities.
(2) VOC emissions from primers shall be limited to a VOC content level of no more than: 350 g/L (2.9
lb/gal) of primer (less water and exempt solvents) as applied or 540 g/L (4.5 lb/gal) of primer (less
water and exempt solvents) as applied for general aviation rework facilities.
(3) Organic HAP emissions from topcoats shall be limited to an organic HAP content level of no more
than: 420 g/L (3.5 lb/gal) of coating (less water) as applied or 540 g/L (4.5 lb/gal) of coating (less
water) as applied for general aviation rework facilities. Organic HAP emissions from self-priming
topcoats shall be limited to an organic HAP content level of no more than: 420 g/L (3.5 lb/gal) of
self-priming topcoat (less water) as applied or 540 g/L (4.5 lb/gal) of self-priming topcoat (less
water) as applied for general aviation rework facilities.
(4) VOC emissions from topcoats shall be limited to a VOC content level of no more than: 420 g/L (3.5
lb/gal) of coating (less water and exempt solvents) as applied or 540 g/L (4.5 lb/gal) of coating (less
water and exempt solvents) as applied for general aviation rework facilities. VOC emissions from
self-priming topcoats shall be limited to a VOC content level of no more than: 420 g/L (3.5 lb/gal) of
self-priming topcoat (less water and exempt solvents) as applied or 540 g/L (4.5 lb/gal) of self-
priming topcoat (less water) as applied for general aviation rework facilities.
(5) Organic HAP emissions from specialty coatings shall be limited to an organic HAP content level of
no more than the HAP content limit specified in Table 1 below of 40 CFR 63.745 for each applicable
specialty coating type. Coating limits for HAP are expressed in terms of mass (grams or pounds) of
HAP per volume (liters or gallons) of coating less water.
(6) VOC emissions from specialty coatings shall be limited to a VOC content level of no more than the
VOC content limit specified in Table 1 below of 40 CFR 63.745 for each applicable specialty coating
type. Coating limits for VOC are expressed in terms of mass (grams or pounds) of VOC per volume
(liters or gallons) of coating less water and less exempt solvent.

98

Table 1: Specialty Coatings -HAP and VOC Content Limits

Coating Type HAP Limit g/L VOC Limit g/L
(lb/gallon) (lb/gallon)1
Ablative Coating 600 (5.0) 600 (5.0)
Adhesion Promoter 890 (7.4) 890 (7.4)
Adhesive Bonding Primers: Cured at 250 degrees F or below 850 (7.1) 850 (7.1)
Adhesive Bonding Primers: Cured above 250 degrees F 1030 (8.6) 1030 (8.6)
Commercial Interior Adhesive 760 (6.3) 760 (6.3)
Cyanoacrylate Adhesive 1,020 (8.5) 1,020 (8.5)
Fuel Tank Adhesive 620 (5.2) 620 (5.2)
Nonstructural Adhesive 360 (3.0) 360 (3.0)
Rocket Motor Bonding Adhesive 890 (7.4) 890 (7.4)
Rubber-based Adhesive 850 (7.1) 850 (7.1)
Structural Autoclavable Adhesive 60 (0.5) 60 (0.5)
Structural Nonautoclavable Adhesive 850 (7.1) 850 (7.1)
Antichafe Coating 660 (5.5) 660 (5.5)
Bearing Coating 620 (5.2) 620 (5.2)
Caulking and Smoothing Compounds 850 (7.1) 850 (7.1)
Chemical Agent-Resistant Coating 550 (4.6) 550 (4.6)
Clear Coating 720 (6.0) 720 (6.0)
Commercial Exterior Aerodynamic Structure Primer 650 (5.4) 650 (5.4)
Compatible Substrate Primer 780 (6.5) 780 (6.5)
Corrosion Prevention System 710 (5.9) 710 (5.9)
Cryogenic Flexible Primer 645 (5.4) 645 (5.4)
Cryoprotective Coating 600 (5.0) 600 (5.0)
Dry Lubricative Material 880 (7.3) 880 (7.3)
Electric or Radiation-Effect Coating 800 (6.7) 800 (6.7)
Electrostatic Discharge and Electromagnetic Interference (EMI) Coating 800 (6.7) 800 (6.7)
Elevated-Temperature Skydrol-Resistant Commercial Primer 740 (6.2) 740 (6.2)
Epoxy Polyamide Topcoat 660 (5.5) 660 (5.5)
Fire-Resistant (interior) Coating 800 (6.7) 800 (6.7)
Flexible Primer 640 (5.3) 640 (5.3)
Flight-Test Coatings: Missile or Single Use Aircraft 420 (3.5) 420 (3.5)
Flight-Test Coatings: All Other 840 (7.0) 840 (7.0)
Fuel-Tank Coating 720 (6.0) 720 (6.0)
High-Temperature Coating 850 (7.1) 850 (7.1)
Insulation Covering 740 (6.2) 740 (6.2)
Intermediate Release Coating 750 (6.3) 750 (6.3)
Lacquer 830 (6.9) 830 (6.9)
Bonding Maskant 1,230 (10.3) 1,230 (10.3)
Critical Use and Line Sealer Maskant 1,020 (8.5) 1,020 (8.5)
Seal Coat Maskant 1,230 (10.3) 1,230 (10.3)
Metallized Epoxy Coating 740 (6.2) 740 (6.2)
Mold Release 780 (6.5) 780 (6.5)
Optical Anti-Reflective Coating 750 (6.3) 750 (6.3)
Part Marking Coating 850 (7.1) 850 (7.1)
Pretreatment Coating 780 (6.5) 780 (6.5)
Rain Erosion-Resistant Coating 850 (7.1) 850 (7.1)
Rocket Motor Nozzle Coating 660 (5.5) 660 (5.5)

99
Scale Inhibitor 880 (7.3) 880 (7.3)
Screen Print Ink 840 (7.0) 840 (7.0)
Extrudable/Rollable/Brushable Sealant 280 (2.3) 280 (2.3)
Sprayable Sealant 600 (5.0) 600 (5.0)
Silicone Insulation Material 850 (7.1) 850 (7.1)
Solid Film Lubricant 880 (7.3) 880 (7.3)
Specialized Function Coating 890 (7.4) 890 (7.4)
Temporary Protective Coating 320 (2.7) 320 (2.7)
Thermal Control Coating 800 (6.7) 800 (6.7)
Wet Fastener Installation Coating 675 (5.6) 675 (5.6)
Wing Coating 850 (7.1) 850 (7.1)

(7) Compliance with the organic HAP and VOC content limits specified in paragraphs (1) through (6)
shall be accomplished by using the following methods, as specified in 40 CFR 63.745 paragraphs
(e)(1) and (e)(2), either by themselves or in conjunction with one another:
(i) Use primers, topcoats (including self-priming topcoats), and specialty coatings with HAP and
VOC content levels equal to or less than the limits specified in paragraphs (1) through (6)
above; or
(ii) Use the averaging provisions described in 40 CFR 63.743(d).
(8) The permittee shall conduct the handling and transfer of primers, topcoats, and specialty coatings to
or from containers, tanks, vats, vessels, and piping systems in such a manner that minimizes spills.

The primer application operation is considered in compliance when the conditions specified in 40 CFR
63.749(d)(3)(i) through (d)(3)(iv), as applicable, and in 40 CFR 63.749(e) are met. The compliance
demonstration for a primer may be based on the organic HAP content or the VOC content of the primer;
demonstrating compliance with both the HAP content limit and the VOC content limit is not required. If a
primer contains HAP solvents that are exempt from the definition of VOC in 40 CFR 63.741 and 40 CFR
51.100, then the HAP content must be used to demonstrate compliance.

The topcoat application operation is considered in compliance when the conditions specified in 40 CFR
63.749(d)(4)(i)(A) are met. The specialty coating application operation is considered in compliance when
the conditions specified in 40 CFR 63.749 (d)(4)(i)(B) are met. The compliance demonstration for a
topcoat or a specialty coating may be based on the organic HAP content or the VOC content of the
coating; demonstrating compliance with both the HAP content limit and the VOC content limit is not
required. If a topcoat or specialty coating contains HAP solvents that are exempt from the definition of
VOC in 40 CFR 63.741 and 40 CFR 51.100, then the HAP content must be used to demonstrate
compliance.

Specialty coating application operations that are existing on February 17, 2015 shall be in compliance
with the requirements of this condition on or before December 7, 2018. Specialty coating application
operations that begin construction or reconstruction after February 17, 2015 and all primer and topcoat
operations shall be in compliance with the requirements of this condition upon startup.
[Origin: 40 CFR 63 Subpart GG, DAQE-AN0101210200A-09]. [40 CFR 63.745, 40 CFR 63.749(a), 40
CFR 63.749(d)]

II.B.27.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.27.c.2 Recordkeeping:

100
The permittee shall record the following information, as appropriate, when complying with the
organic HAP and VOC content limits established by this condition, in accordance with paragraphs
(c)(1) through (c)(6) of 40 CFR 63.752. If using coating manufacturer's supplied data to
demonstrate compliance with the applicable organic HAP or VOC limit specified in 40 CFR
63.745(c), the permittee may retain the manufacturer's documentation and annual purchase
records in place of the records specified in paragraphs (2) and (3) of this section. If using the
coating manufacturer's supplied data to demonstrate compliance based on the HAP content of the
coating, and adding non-HAP solvent to those coatings, the permittee shall also maintain records
of the non-HAP solvent added to the coating.
(1) The name and VOC content as received and as applied of each primer, topcoat, and specialty
coating used at the facility.
(2) For uncontrolled primers, topcoats, and specialty coatings that meet the organic HAP and
VOC content limits specified in paragraphs (1) through (6) of this condition, without
averaging:
(i) The mass of organic HAP emitted per unit volume of coating as applied (less water)
(Hi) and the mass of VOC emitted per unit volume of coating as applied (less water and
exempt solvents) (Gi) for each coating formulation within each coating category used
each month (as calculated using the procedures specified in 40 CFR 63.750(c) and (e));
(ii) All data, calculations, and test results (including EPA Method 24 results) used in
determining the values of Hi and Gi; and
(iii) The volume (gal) of each coating formulation within each coating category used each
month.
(3) For "low HAP content" uncontrolled primers with organic HAP content less than or equal to
250 g/l (2.1 lb/gal) less water as applied and VOC content less than or equal to 250 g/l (2.1
lb/gal) less water and exempt solvents as applied:
(i) Annual purchase records of the total volume of each primer purchased; and
(ii) All data, calculations, and test results (including EPA Method 24 results) used in
determining the organic HAP and VOC content as applied. These records shall consist
of the manufacturer's certification when the primer is applied as received, or the data
and calculations used to determine Hi if not applied as received.
(4) For primers, topcoats, and specialty coatings complying with the organic HAP or VOC
content level by averaging:
(i) The monthly volume-weighted average masses of organic HAP emitted per unit volume
of coating as applied (less water) (Ha) and of VOC emitted per unit volume of coating
as applied (less water and exempt solvents) (Ga) for all coatings (as determined by the
procedures specified in 40 CFR 63.750(d) and (f)); and
(ii) All data, calculations, and test results (including EPA Method 24 results) used to
determine the values of Ha and Ga.

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected
sources or equipment, an estimate of the quantity of each regulated pollutant emitted over
any emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

101
Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.27.c.3 Reporting:

The permittee shall submit semiannual reports occurring every 6 months from the date of the
notification of compliance status that identify:
(a) For primers, topcoats, and specialty coatings where compliance is not being achieved
through the use of averaging, the HAP or VOC content in manufacturer's supplied data as
recorded under 40 CFR 63.752(c), or each value of Hi (the mass of organic HAP emitted per
unit of volume of coating as applied (less water)) and (Gi) (the mass of VOC emitted per unit
of volume of coating as applied (less water and exempted solvents)), as recorded under 40
CFR 63.752(c)(2)(i), that exceeds the applicable organic HAP or VOC content limit specified
in 40 CFR 63.745(c);
(b) For primers, topcoats, and specialty coatings where compliance is being achieved through the
use of averaging, each value of Ha (the monthly volume-weighted average masses of organic
HAP emitted per unit volume of coating as applied (less water)) and Ga (the monthly
volume-weighted average masses of VOC emitted per unit volume of coating as applied (less
water and exempt solvents)), as recorded under 40 CFR 63.752(c)(4)(i), that exceeds the
applicable organic HAP or VOC content limit specified in 40 CFR 63.745(c);
(c) If the coating operations have been in compliance for the semiannual period, a statement that
the coating operations have been in compliance with the applicable standards.

The semiannual report shall also include a statement of compliance signed by a responsible
company official certifying that the facility is in compliance with all applicable requirements.

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – HAFB complies with the HAP and VOC content limits in item (7)(i)).
Material issued and used is tracked in EESOH. A random audit confirms that magnehelic
gauges are installed on each system. Records are maintained by the shift operator.
Semiannual Aerospace NESHAP reports are submitted as required. The last Semiannual
Aerospace NESHAP report, for the First half of 2024, was submitted on August 2, 2024.

II.B.28 Conditions on Aerospace NESHAP Chemical Depainting (Unit #30).

II.B.28.a Condition:

(1) Each aerospace depainting operation subject to this condition shall emit no organic HAP from
chemical stripping formulations and agents or chemical paint softeners, except as provided in 40 CFR
63.746(b)(2) (see NESHAP non-chemical depainting condition in this permit) and paragraph (2)
below:
(2) The permittee shall not, on an annual average basis, use more than 50 gallons of organic HAP-
containing chemical strippers or alternatively 365 pounds of organic HAP per military aircraft
depainted for spot stripping and decal removal.
[Origin: 40 CFR 63 Subpart GG]. [40 CFR 63.746(b)]

II.B.28.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

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II.B.28.a.2 Recordkeeping:

For all emission units subject to the depainting standards specified in 40 CFR 63.746, the
permittee shall record the following information, as appropriate, in accordance with paragraphs
(e)(1), (e)(4), and (e)(6) of 40 CFR 63.752:
(1) For all chemical strippers used in the depainting operation:
(i) The name of each chemical stripper; and
(ii) Monthly volumes of each organic HAP containing chemical stripper used or monthly
weight of organic HAP-material used for spot stripping and decal removal.
(2) For each type of aircraft depainted at the facility, a listing of the parts, subassemblies, and
assemblies normally removed from the aircraft before depainting. Prototype, test model or
aircraft that exist in low numbers (i.e., less than 25 aircraft of any one type) are exempt from
this requirement.
(3) For spot stripping and decal removal, the permittee shall record the volume of organic HAP-
containing chemical stripper or weight of organic HAP used, the annual average volume of
organic HAP-containing chemical stripper or weight of organic HAP used per aircraft, the
annual number of aircraft stripped, and all the data and calculations used.

The permittee shall fulfill all recordkeeping requirements specified in 40 CFR 63.10(a), (b), (d),
and (f), except 40 CFR 63.10(b)(2)(i), (iv) and (v). The permittee shall also record and maintain
according to 40 CFR 63.10(b)(1) the information specified in paragraph (a)(1) through (3) of 40
CFR 63.752(a):
(1) In the event that an affected unit fails to meet an applicable standard, record the number of
failures. For each failure record the date, time, and duration of each failure.
(2) For each failure to meet an applicable standard, record and retain a list of the affected
sources or equipment, an estimate of the quantity of each regulated pollutant emitted over
any emission limit and a description of the method used to estimate the emissions.
(3) Record actions taken to minimize emissions in accordance with 40 CFR 63.743(e), and any
corrective actions taken to return the affected unit to its normal or usual manner of operation.

The log shall be maintained in accordance with the requirements of Provision S.1 in Section I of
this permit.

II.B.28.a.3 Reporting:

(1) The permittee shall submit semiannual reports occurring every 6 months from the date of the
notification of compliance status that identify:
(i) Any 24-hour period where organic HAP were emitted from the depainting of aerospace
vehicles, other than from the exempt operations listed in 40 CFR 63.746 (a), (b)(3), and
(b)(5).
(ii) Any new chemical strippers used at the facility during the reporting period;
(iii) The organic HAP content of these new chemical strippers;
(iv) For each chemical stripper that undergoes reformulation, its organic HAP content;
(v) For periods of malfunctions:
(A) The date that the malfunction occurred;
(B) A description of the malfunction;
(C) The methods used to depaint aerospace vehicles during the malfunction period;
(D) The dates that these methods were begun and discontinued; and
(E) The date that the malfunction was corrected;

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(vi) A list of new and discontinued aircraft models depainted at the base over the last 6
months and a list of the parts normally removed for depainting for each new aircraft
model being depainted; and
(vii) If the depainting operation has been in compliance for the semiannual period, a
statement signed by a responsible company official that the depainting operation was in
compliance with the applicable standards. The semiannual report shall also include a
statement of compliance signed by a responsible company official certifying that the
facility is in compliance with all applicable requirements.

Semiannual compliance reports for each type of operation subject to Subpart GG (i.e.
cleaning, primer and topcoat application, depainting, chemical milling maskant application)
can be combined into a single semiannual compliance report.

(2) The permittee shall submit annual reports occurring every 12 months from the date of the
notification of compliance status that identify:
(i) The average volume per aircraft of organic HAP-containing chemical strippers or
weight of organic HAP used for spot stripping and decal removal operations if it
exceeds the limits specified in 40 CFR 63.746(b)(3).

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – Organic HAP containing chemical strippers used was 10.7 gallons, per
aircraft tail number, as of July 31, 2024. Semiannual Aerospace NESHAP reports are
submitted as required. The last Semiannual Aerospace NESHAP report, for the First half of
2024, was submitted on August 2, 2024.

II.B.29 Conditions on Miscellaneous Metal Parts and Products Coatings (Unit #31)

II.B.29.a Condition:

For all applications of surface coatings to miscellaneous metal parts and products, no coatings with a VOC
content greater than the amounts specified in Table 1 shall be applied.
TABLE 1 METAL PARTS AND PRODUCTS VOC CONTENT LIMITS
(values in pounds of VOC per gallon of coating, minus water and exempt solvents (compounds not
classified as VOC as defined in R307-101-2), as applied)

COATING CATEGORY VOC CONTENT LIMITS (lb/gal)
Air Dried Baked
General One Component 2.8 2.3
General Multi Component 2.8 2.3
Camouflage 3.5 3.5
Electric-Insulating varnish 3.5 3.5
Etching Filler 3.5 3.5
Extreme High-Gloss 3.5 3.0
Extreme Performance 3.5 3.0
Heat-Resistant 3.5 3.0
High Performance architectural 6.2 6.2
High Temperature 3.5 3.5
Metallic 3.5 3.5
Military Specification 2.8 2.3

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Mold-Seal 3.5 3.5
Pan Backing 3.5 3.5
Prefabricated Architectural Multi-Component 3.5 2.3
Prefabricated Architectural One-Component 3.5 2.3
Pretreatment Coatings 3.5 3.5
Repair and Touch Up 3.5 3.0
Silicone Release 3.5 3.5
Solar-Absorbent 3.5 3.0
Vacuum-Metalizing 3.5 3.5
Drum Coating, New, Exterior 2.8 2.8
Drum Coating, New, Interior 3.5 3.5
Drum Coating, Reconditioned, Exterior 3.5 3.5
Drum Coating, Reconditioned, Interior 4.2 4.2

If more than one content limit indicated in this section applies to a specific coating, then the most stringent
content limit shall apply.

These requirements do not apply to the exemptions listed in R307-350-3, including the surface coating of
automobiles subject to R307-354 and light-duty trucks; flat metal sheets and strips in the form of rolls or
coils; surface coating of aerospace vehicles and components subject to R307-355; the exterior of marine
vessels; customized top coating of automobiles and trucks if production is less than 35 vehicles per day;
military munitions manufactured by or for the Armed Forces of the United States; operations that are
exclusively covered by Department of Defense military technical data and performed by a Department of
Defense contractor and/or on site at installations owned and/or operated by the United States Armed
Forces; stripping of cured coatings and adhesives; canned aerosol coating products; research and
development, quality control, or performance testing activities; or coating products on medical devices up
to 800 pounds of VOC per year. The requirements do not apply to stencil and hand lettering coatings;
safety-indicating coatings; solid-film lubricants; electric-insulating and thermal-conducting coatings;
magnetic data storage disk coatings; or plastic extruded onto metal parts to form a coating.

This condition applies to miscellaneous metal parts and products coating operations that use a combined
20 gallons or more of coating products and associated solvents per year.
[Origin: DAQE-AN0101210200A-09, R307-350]. [R307-350-2, R307-350-3, R307-350-5]

II.B.29.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.29.a.2 Recordkeeping:

The permittee shall maintain records demonstrating compliance with this condition. Records shall
include, but are not limited to, inventory and product data sheets of all coatings and solvents
subject to this condition. Records shall be maintained as described in Provision I.S.1 of this permit
and shall be available to the Director upon request.

II.B.29.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

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Status: In compliance – All coating materials containing VOCs are screened by the EESOH
Authorization Process prior to being accepted or used on HAFB. The EESOH Authorization
Process follows the VOC limits listed in Table 1 above. HAFB used 7,876 gallons of
Miscellaneous Metal Parts (MMP) coating as of July 31, 2024.

II.B.29.b Condition:

(1) When applied to parts and components not subject to 40 CFR 63, Subpart GG, the following
specialty coatings, including any VOC-containing materials added to the original coating supplied by
the manufacturer, shall contain VOCs not exceeding the following limits:
Coating Type VOC Content (g/L)
Ablative Coating 600
Adhesion Promoter 890
Adhesive Bonding Primer Cured at 250 F or below 850
Adhesive Bonding Primer Cured above 250 F 1030
Commercial Interior Adhesive 760
Cyanoacrylate Adhesive 1020
Fuel Tank Adhesive 620
Nonstructural Adhesive 360
Rocket Motor Bonding Adhesive 890
Rubber-based Adhesive 850
Structural Autoclavable Adhesive 60
Structural Nonautoclavable Adhesive 850
Bearing Coating 620
Caulking and Smoothing Compounds 850
Antichafe Coating 660
Chemical Agent-Resistant Coating 550
Clear Coating 720
Commercial Exterior Aerodynamic Structure Primer 650
Compatible Substrate Primer 780
Corrosion Prevention Compound 710
Cryogenic Flexible Primer 645
Cryoprotective Coating 600
Electric or Radiation -Effect Coating 800
Dry Lubricative Material 880
Electrostatic Discharge and Electromagnetic Interference (EMI) Coating 800
Elevated temperature Skydrol Resistant Commercial Primer 740
Epoxy Polyamide Topcoat 660
Fire-Resistant (interior) Coating 800
Flexible Primer 640
Flight Test Coatings - Missile or Single Use Aircraft 420
Flight Test Coatings - All Other 840
Fuel-Tank Coating 720
High-Temperature Coating 850
Insulation Covering 740
Intermediate Release Coating 750
Lacquer 830
Bonding Maskant 1230
Critical Use and Line Sealer Maskant 1020
Seal Coat Maskant 1230
Metallized Epoxy Coating 740

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Mold Release 780
Optical Anti-Reflective Coating 750
Part Marking Coating 850
Pretreatment Coating 780
Rain erosion-Resistant Coating 850
Rocket Motor Nozzle Coating 660
Scale Inhibitor 880
Screen Print Ink 840
Extrudable/Rollable/Brushable Sealant 240
Sprayable Sealant 600
Silicone Insulation Material 850
Solid Film Lubricant 880
Self-priming Topcoat 420
Specialized Function Coating 890
Temporary Protective Coating 320
Thermal Control Coating 800
Wet Fastener Installation Coating 675
Wing Coating 850
(2) The permittee may comply with the VOC content provisions of paragraph (1) by using approved air
pollution control equipment provided that the control system has combined VOC emissions capture
and control equipment efficiency of at least 81 percent by weight.
(3) The VOC content provisions of paragraph (1) do not apply to:
(a) manufacturing or rework operations involving space vehicles,
(b) rework operations performed on antique aerospace vehicles or components, or
(c) the following activities where cleaning and coating of aerospace components and vehicles may
take place:
(i) research and development
(ii) quality control
(iii) laboratory testing
(iv) electronic parts and assemblies (except for cleaning and coating of completed assemblies
(4) The following coating applications are exempt from the VOC content limits of paragraph (1):
(a) Touch up, aerosol and DOD classified coatings,
(b) Coatings used on space vehicles,
(c) Facilities that use separate formulations in volume of less than 50 gallons per year, subject to a
maximum exemption of 200 gallons for all formulations applied annually.
[Origin: DAQE-AN0101210200A-09]. [R307-401-8]

II.B.29.b.1 Monitoring:

(1) When complying with VOC content limits specified in Paragraph (1) through the use of
compliant specialty coatings, records required for this permit condition will serve as
monitoring.
(2) When complying with VOC content limits specified in Paragraph (1) through the use of an
approved air pollution control equipment, the permittee shall submit a monitoring plan that
specifies the applicable operating parameter value, or range of values, to ensure ongoing
compliance with the VOC content limits. The monitoring device shall be installed,
calibrated, operated, and maintained in accordance with the manufacturer's specifications.

II.B.29.b.2 Recordkeeping:

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(1) For each coating operation using specialty coatings listed in paragraph (a)(1)(i), the permittee
shall:
(a) Maintain a current list of coatings in use with category and VOC content as applied.
(b) Record coating usage on an annual basis based on purchase and/or issue records.
(2) For each coating operation using a control equipment under paragraph (a)(1)(ii) shall record
monitoring parameters as specified in the monitoring plan required.

II.B.29.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – All coating materials containing VOCs are screened by the EESOH
Authorization Process prior to being accepted or used on HAFB. The EESOH Authorization
Process follows the VOC limits listed in the Table above. No controls are used; therefore, no
Monitoring Plan is required.

II.B.29.c Condition:

For all miscellaneous metal parts and products coatings:
(1) The permittee shall implement control techniques and work practices at all times to reduce VOC
emissions. Control techniques and work practices shall include:
(a) Storing all VOC-containing coatings, thinners, and coating-related waste materials in closed
containers, containers with activated carbon or other control method approved by the EPA
Administrator;
(b) Ensuring that mixing and storage containers used for VOC-containing coatings, thinners, and
coating-related waste material are kept closed at all times except when depositing or removing
these materials, unless a container has activated carbon or other control method approved by the
EPA Administrator;
(c) Minimizing spills of VOC-containing coatings, thinners, and coating-related waste materials;
(d) Conveying VOC-containing coatings, thinners, and coating-related waste materials from one
location to another in closed containers, containers with activated carbon or other control method
approved by the EPA Administrator, or pipes; and
(e) Minimizing VOC emission from cleaning of application, storage, mixing, and conveying
equipment by ensuring that equipment cleaning is performed without atomizing the cleaning
solvent and all spent solvent is captured in closed containers.
(2) Solvent cleaning operations shall be performed using cleaning materials having a VOC composite
vapor pressure no greater than 1 mm Hg at 20 degrees Celsius.
(3) VOC containing coatings, except touch-up coatings, repair coatings or textured finishes, shall be
applied to metal parts and products with equipment operated according to the equipment
manufacturer specifications, and by the use of one of the following methods:
(a) Electrostatic application;
(b) Flow coat;
(c) Dip/electrodeposition coat;
(d) Roll coat;
(e) Hand Application Methods;
(f) High-volume, low-pressure (HVLP) spray; or
(g) Another application method capable of achieving 65% or greater transfer efficiency equivalent or
better to HVLP spray, as certified by the manufacturer.

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These requirements do not apply to the exemptions listed in R307-350-3, including the surface coating of
automobiles subject to R307-354 and light-duty trucks; flat metal sheets and strips in the form of rolls or
coils; surface coating of aerospace vehicles and components subject to R307-355; the exterior of marine
vessels; customized top coating of automobiles and trucks if production is less than 35 vehicles per day;
military munitions manufactured by or for the Armed Forces of the United States; operations that are
exclusively covered by Department of Defense military technical data and performed by a Department of
Defense contractor and/or on site at installations owned and/or operated by the United States Armed
Forces, stripping of cured coatings and adhesives; canned aerosol coating products; research and
development, quality control, or performance testing activities; or coating products on medical devices up
to 800 pounds of VOC per year.

This condition applies to miscellaneous metal parts and products coating operations that use a combined
20 gallons or more of coating products and associated solvents per year.
[Origin: R307-350-2, R307-350-3, R307-350-6, R307-350-7, DAQE-AN0101210200A-09]. [R307-350-2,
R307-350-3, R307-350-6, R307-350-7]

II.B.29.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.29.c.2 Recordkeeping:

The permittee shall keep records of the control techniques, work practices, application equipment,
as applicable, that are used to reduce VOC emissions. Records shall include, but are not limited
to, inventory and product data sheets of all coatings and solvents subject to this condition.
Records demonstrating compliance with this condition shall be maintained in accordance with
provisions of Section I.S.1 of this permit and shall be available to the Director upon request.

II.B.29.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – All coating materials containing VOCs are screened by the EESOH
Authorization Process prior to being accepted or used on HAFB. Weekly inspections are
conducted by operations and monthly inspections are completed by UECs. Semiannual
oversite inspections are conducted by Standtec.

II.B.30 Conditions on Composite Core Processes in Building 238 (Unit #32).

II.B.30.a Condition:

Visible emissions from the baghouses shall be no greater than 10 percent opacity except for a period not
exceeding 1 minute in any hour. [Origin: DAQE-AN0101210204-10]. [R307-401-8]

II.B.30.a.1 Monitoring:

An opacity survey of each affected emission unit shall be performed once each month when the
unit operates, by an individual trained on the observation procedures of 40 CFR 60, Appendix A,
Method 9. The individual is not required to be a certified visible emissions observer. If any

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visible emissions are observed, an opacity determination of that emission unit shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method 9.

II.B.30.a.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall also keep a log of the
following information for each opacity determination: date and time visual emissions observed,
emission point location and description, time and date of opacity test, and percent opacity. The
records required by this provision and all data required by 40 CFR 60, Appendix A, Method 9
shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.30.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – UECs perform monthly opacity observations of the Composite Core
Processes baghouse. They also maintain a Monthly Observation Checklist. Oversite
inspections of the checklists are conducted annually by Standtec. EPA Method observation
are also completed by Standtec if required. The Observation Checklists are tracked in
APIMS, which were reviewed at time of the inspection.

II.B.31 Conditions on Wood working baghouse in Building 849 (Unit #34).

II.B.31.a Condition:

Visible emissions shall be no greater than 10 percent opacity. [Origin: DAQE-1098-97]. [R307-401-8]

II.B.31.a.1 Monitoring:

A visual opacity survey of each affected emission unit shall be performed on a monthly basis by
an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If
visible emissions other than steam are observed from an emission unit, an opacity determination
of that emission unit shall be performed by a certified observer within 24 hours of the initial
survey. The opacity determination shall be performed in accordance with 40 CFR 60, Appendix
A, Method 9.

II.B.31.a.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall maintain all the records
required by this provision and all data required by 40 CFR 60, Appendix A, Method 9 in
accordance with Provision I.S.1 of this permit.

II.B.31.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

110
Status: In compliance – UECs perform monthly opacity observations of the Wood Working
baghouse (AQUIS 3651). They also maintain a Monthly Observation Checklist. Oversite
inspections of the checklists are conducted annually by Standtec. EPA Method observation
are also completed by Standtec if required. The Observation Checklists are tracked in
APIMS, which were reviewed at time of the inspection.

II.B.32 Conditions on Bake Oven in Building 1701 (Unit #35).

II.B.32.a Condition:

Natural gas consumption shall be no greater than 2.2 MMSCF per rolling 12 month period. [Origin:
DAQE-AN0121162-04]. [R307-401-8]

II.B.32.a.1 Monitoring:

By the 30th day (28th day for February) of each month, a rolling 12-month total shall be
determined using records from the previous 12 months.

II.B.32.a.2 Recordkeeping:

Records of natural gas used for the bake oven shall be kept for all periods and shall be maintained
as described in Provision I.S.1 of this permit.

II.B.32.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Natural gas consumption of the bake oven was 0.0 MMSCF as of July 31,
2024.

II.B.33 Conditions on Aggregated Boiler Group (Unit #36).

II.B.33.a Condition:

Visible emissions shall be no greater than 10 percent opacity. [Origin: DAQE-AN101210245-16]. [R307-
401-8]

II.B.33.a.1 Monitoring:

A. For emission units operating on natural gas only, in lieu of monitoring via visible emission
observations the permittee shall monitor fuel usage to demonstrate that only pipeline-quality
natural gas is being used as fuel.
B. For all other emission units operating on fuel other than natural gas, the permittee shall apply
one of the following monitoring techniques to each affected emission unit when in operation:
(1) Monthly visual opacity survey conducted by an individual trained on the observation
procedures of 40 CFR 60, Appendix A, Method 9. If any visible emissions other than
condensed water vapor are observed from an emission point, an opacity determination
of that emission point shall be performed in accordance with 40 CFR 60, Method 9
within 24 hours of the initial visual opacity survey or upon startup if the unit must be

111
shut down for maintenance. If the unit must be permanently removed from service, no
follow-up opacity determination is required.
(2) Quarterly photogrametric opacity observations conducted by an individual trained on
the observation procedures of 40 CFR 60, Appendix A, Method 9. If an opacity of 15
percent or more is detected by the photogrametric analysis, an opacity determination of
that emission point shall be performed in accordance with 40 CFR 60, Appendix A,
Method 9 within 24 hours of the initial photogrametric opacity observation survey or
upon startup if the unit must be shut down for maintenance. If the unit must be
permanently removed from service, no follow-up opacity determination is required.
(3) An annual opacity determination performed in accordance with 40 CFR 60, Appendix
A, Method 9.

The monitoring option selected can vary from unit to unit. For example, if quarterly
photogrametric opacity observations are being conducted for a given unit and the permittee cannot
conduct a photogrametric opacity observation in a quarter that unit operated, an opacity
determination conducted in accordance with the procedures of 40 CFR 60, Appendix A, Method 9
will satisfy the monitoring requirements of this condition.

II.B.33.a.2 Recordkeeping:

For emission units fired on natural gas, the permittee shall maintain records such as gas bills, and
gas meter readings to demonstrate natural gas usage. Records shall be maintained as described in
Provision I.S of this permit.

For all other emission units, the permittee shall maintain a log of monthly visual opacity surveys,
quarterly photogrametric observations, and/or annual opacity determinations which includes the
following information for each affected emission unit: the date and time of each visual opacity
survey, photogrametric opacity observation, annual opacity determination, the specific monitoring
technique used (visual opacity survey, 40 CFR 60 Appendix A Method 9 or photogrametric
observation) and the result of the opacity monitoring. The records required by this provision and
all data required by 40 CFR 60, Appendix A, Method 9 shall be maintained in accordance with
Provision I.S.1 of this permit.

II.B.33.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Natural gas is used to fuel all of the boilers. Natural gas usage is monitored
indicating that only pipeline quality natural gas is burned. At times of natural gas
curtailment only diesel #2 is burned in the boilers .

When diesel is burned in the boiler’s monthly opacity observations are performed by
Standtec oversite inspectors, which are EPA Method 9 certified. There is also a Tank
Program which monitors the levels of on-site diesel tanks. Monthly Opacity Surveys are
tracked in APIMS, which were reviewed at time of the inspection.

II.B.33.b Condition:

The combined heat input to all natural gas-fired boilers at Hill Air Force Base and Little Mountain shall
not exceed 2.76E12 BTU per rolling 12-Month period. This heat input limit shall not apply to any boilers

112
in which combustion takes place at no greater pressure than 1 inch of mercury above ambient pressure
with a rated capacity of less than 5 MMBTU/hr using no other fuel than natural gas, LPG or equivalent,
any comfort heating boiler with a rated capacity of less than 1 MMBTU/hr if fueled only by fuel oil
numbers 1 to 6, or any boiler installed prior to November 29, 1969 (grandfathered sources). [Origin:
DAQE-AN101210245-16]. [R307-401-8]

II.B.33.b.1 Monitoring:

The fuel use for all affected boilers shall be monitored monthly. Within 30 days of the previous
month, the 12-month total heat input from all affected boilers shall be calculated using fuel use
records and the following heat conversion factors:
1. For JP-8, 123,000 BTU/gallon
2. For JP-10, 141,500 BTU/gallon
3. For No.2 Fuel Oil, 141,000 BTU/gallon
4. For Diesel Fuel, 137,000 BTU/gallon
5. For Natural Gas/ Propane, 1020 BTU/SCF
6. For Used Oil, 141,000 BTU/gallon
7. For JP-4, JP-5, JP-6, Jet A, appropriate heating value as approved by the Director.

II.B.33.b.2 Recordkeeping:

The records required for monitoring shall be maintained as described by Provision S.1 in Section I
of this permit.

II.B.33.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The combined heat input of all on-site natural gas boilers was 938,354
MMBTU, as of July 31, 2024. The limit is 2.76 E+06 MMBTU.

II.B.33.c Condition:

NOx emission limits, calculated as the product of 0.09 lb/MMBtu * Rated Capacity in MMBtu/hr, shall
not be exceeded.

Building Location AQUIS# Rated Capacity (MMBtu/hr)
260(#8) 3507 87.5
260(#9) 3508 87.5
260(#2) 3501 80.0
260(#3) 3502 80.0
1286(#1) 3519 60.0
[Origin: DAQE-AN101210245-16]. [R307-401-8]

II.B.33.c.1 Monitoring:

Stack testing shall be performed as specified below for boilers with capacities of 50 MMBtu/hour
or greater:
(a) Frequency. Emissions shall be tested every three (3) years, based on the most recent stack
test.

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(b) Notification. At least 30 days before the test, the source shall notify the Director of the date,
time, and place of testing and provide a copy of the test protocol. The source shall attend a
pretest conference if determined necessary by the Director.
(c) Methods.
(1) Sample Location - Occupational Safety and Health Administration (OSHA) approved
access shall be provided to the test location.
(2) 40 CFR 60, Appendix A, Method 7, 7A, 7B, 7C, 7D, or 7E shall be used to determine
the pollutant emission rate.
(3) 40 CFR 60, Appendix A, Method 2, or Method 19 shall be used to determine the
volumetric flow rate.
(d) Calculations. To determine mass emission rates (lb/hr, etc.) the pollutant concentration as
determined by the appropriate methods above shall be multiplied by the volumetric flow rate
and any necessary conversion factors determined by the Director to give the results in the
specified units of the emission limitation.
(e) Production Rate During Testing. The production rate during all compliance testing shall be
the average production achieved in the previous three (3) years unless the Director or
representative agrees to an alternative production rate.

II.B.33.c.2 Recordkeeping:

Results of all stack testing shall be recorded and maintained in accordance with the associated test
method and Provision S.1 in Section I of this permit.

II.B.33.c.3 Reporting:

The results of stack testing shall be submitted to the Director within 60 days of completion of the
testing. Reports shall clearly identify results as compared to permit limits and indicate
compliance status. There are no additional reporting requirements for this provision except those
specified in Section I of this permit.

Status: N/A – The last stack test was conducted on January 10-12, 2022 with the following results:

Source Test Date RM/Pollutant DAQ Result Test Result Limit
Boiler #1 1/12/22 7E/NOX 0.061 lb/MMBtu 0.061 lb/MMBtu 0.09 lb/MMBtu
Boiler #2 1/12/22 7E/NOX 0.055 lb/MMBtu 0.055 lb/MMBtu 0.09 lb/MMBtu
Boiler #3 1/11/22 7E/NOX 0.046 lb/MMBtu 0.045 lb/MMBtu 0.09 lb/MMBtu
Boiler #8 1/10/22 7E/NOX 0.072 lb/MMBtu 0.072 lb/MMBtu 0.09 lb/MMBtu
Boiler #9 1/11/22 7E/NOX 0.076 lb/MMBtu 0.076 lb/MMBtu 0.09 lb/MMBtu

However, the older boilers are currently being replaced with new boilers. Boiler (#1) in building
1286 has been removed. The boilers (#2,#3,#8 and #9) in building 260 were in the process of being
removed at time of the inspection. There are currently three new temporary rentals boiler operating
on-site. However, these boilers will not be on-site in 2025, when the next stack test is required to be
performed.

II.B.34 Conditions on NSPS Boilers (Unit #37).

II.B.34.a Condition:

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At all times, including periods of startup, shutdown, and malfunction, the sulfur content of any fuel oil
combusted shall be no greater than 0.5 percent by weight. [Origin: 40 CFR 60 Subpart Dc]. [40 CFR
60.42c(d), 40 CFR 60.42c(i)]

II.B.34.a.1 Monitoring:

For each affected emission unit the permittee shall monitor in accordance with either a) or b).
a) Demonstrate compliance based on a certification from the fuel supplier that includes the
following information:
i. The name of the oil supplier;
ii. A statement from the oil supplier that the oil complies with the specifications under the
definition of distillate oil in 40 CFR 60.41c; and
iii. The sulfur content or maximum sulfur content of the oil.
b) Demonstrate compliance based on shipment fuel sampling. The initial performance test shall
consist of sampling and analyzing the oil in the initial tank of oil to be fired in the affected
emission unit to demonstrate that the oil contains 0.5 weight percent sulfur or less. Thereafter,
the permittee shall sample the oil in the fuel tank after each new shipment of oil is received.
Oil samples shall be collected from the fuel tank for each affected emission unit immediately
after the fuel tank is filled and before any oil is combusted. The permittee shall analyze the oil
sample to determine the sulfur content of the oil. If a partially empty fuel tank is refilled, a
new sample and analysis of the fuel in the tank would be required upon filling. Results of the
fuel analysis taken after each new shipment of oil is received shall be used as the daily value
when calculating the 30-day rolling average until the next shipment is received. If the fuel
analysis shows that the sulfur content in the fuel tank is greater than 0.5 weight percent sulfur,
the permittee shall ensure that the sulfur content of subsequent oil shipments is low enough to
cause the 30-day rolling average sulfur content to be 0.5 weight percent sulfur or less.
[40 CFR 60.42c(h), 40 CFR 60.44c(g), 40 CFR 60.44c(h), 40 CFR 60.46c(d)(2), 40 CFR
60.46c(e), 40 CFR 60.48c(f)].

II.B.34.a.2 Recordkeeping:

For each affected emission unit subject to the fuel oil sulfur limits under 40 CFR 60.42c, that
demonstrates compliance based on shipment fuel sampling, the permittee shall keep records
including the following information, as applicable: each 30-day average sulfur content (weight
percent), calculated during the reporting period, ending with the last 30-day period; reasons for
any noncompliance with the emission standards; and a description of corrective actions taken.
Records of fuel supplier certifications shall be kept if used to demonstrate compliance as
described in the monitoring for this condition.
[40 CFR 60.48c(e)]

These records shall be maintained in accordance with Provision I.S.1. of this permit.

II.B.34.a.3 Reporting:

A report for each six-month period shall be submitted to the Director and shall be postmarked by
the 30th day following the end of the reporting period and shall include the following information,
as applicable:
a) The performance test data from the initial and any subsequent performance tests.
b) Calendar dates covered in the reporting period.

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c) Each 30-day average sulfur content (weight percent), calculated during the reporting period,
ending with the last 30-day period; reasons for any noncompliance with the emission
standards; and a description of corrective actions taken.
d) If fuel supplier certification is used to demonstrate compliance, in addition to records of fuel
supplier certifications, the report shall include a certified statement signed by the Responsible
Official that the records of fuel supplier certifications submitted represent all of the fuel
combusted during the reporting period.
[40 CFR 60.48c(b), 40 CFR 60.48c(d), 40 CFR 60.48c(e), 40 CFR 60.48c(j)]

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – HAFB complies with item (a) under II.B.34.a.1, by using DLA Bills of
Ladings that confirm that Diesel #2 is combusted on base. HAFB also complies with item (d)
under II.B.34.a.3, requiring a Responsible Official signature on fuel documents.
Semiannual NSPS Dc Reports are submitted as required. The last NSPS DC report was
submitted on July 26, 2024. See status of conditions II.B.1.a and II.B.9.b.

II.B.34.b Condition:

The permittee shall record and maintain records of the amount of each fuel combusted during each
calendar month, for each affected emission unit. [Origin: 40 CFR 60 Subpart Dc]. [40 CFR 60.48c(g)(2)]

II.B.34.b.1 Monitoring:

Fuel consumption for each affected emission unit shall be determined by a fuel meter.

II.B.34.b.2 Recordkeeping:

Records of the amounts of each fuel combusted during each month for each affected unit shall be
maintained as described in Provision I.S.1 of this permit.

II.B.34.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – There are reporting requirements under 40 CFR 60.48c when fuel oil is
combusted during a report period. No report is due if only natural gas was burned during
the report period. Semi-annual NSPS Dc reports are submitted as required by 40 CFR
60.48c, when Diesel Readiness Testing and natural gas curtailments take place. The last
NSPS Dc report was received on July 26, 2024.

II.B.34.c Condition:

Unless otherwise specified in this permit, on and after the date on which the initial performance test is
completed or required to be completed under 40 CFR 60.8, whichever date comes first, no affected
emission unit that combusts oil and has a heat input capacity of 30 MMBtu/hr or greater shall discharge
into the atmosphere any gases that exhibit greater than 20 percent opacity (6-minute average), except for
one 6-minute period per hour of not more than 27 percent opacity. The opacity standard applies at all

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times, except during periods of startup, shutdown, or malfunction.
[Origin: 40 CFR 60 Subpart Dc]. [40 CFR 60.43c(c), 40 CFR 60.43c(d)]

II.B.34.c.1 Monitoring:

a) The permittee shall conduct an initial performance test as required under 40 CFR 60.8, within
180 days after initial startup using the procedures in 40 CFR 60.11 and 40 CFR 60, Appendix
A-4, Method 9 for determining the opacity of stack emissions. The permittee shall conduct
subsequent performance tests as requested by the Director and shall comply with either
paragraph (a)(1), (a)(2), or (a)(3). The observation period for Method 9 performance tests may
be reduced from 3 hours to 60 minutes if all 6-minute averages are less than 10 percent and all
individual 15-second observations are less than or equal to 20 percent during the initial 60
minutes of observation.
(1) Except as provided in paragraph (a)(2) and (a)(3), the permittee shall conduct subsequent
Method 9 performance tests using the procedures in paragraph (a) according to the
applicable schedule in paragraphs (a)(1)(i) through (a)(1)(iv), as determined by the most
recent Method 9 performance test results.
(i) If no visible emissions are observed, a subsequent Method 9 performance test shall
be completed within 12 calendar months from the date that the most recent
performance test was conducted or within 45 days of the next day that fuel with an
opacity standard is combusted, whichever is later;
(ii) If visible emissions are observed but the maximum 6-minute average opacity is less
than or equal to 5 percent, a subsequent Method 9 performance test shall be
completed within 6 calendar months from the date that the most recent performance
test was conducted or within 45 days of the next day that fuel with an opacity
standard is combusted, whichever is later;
(iii) If the maximum 6-minute average opacity is greater than 5 percent but less than or
equal to 10 percent, a subsequent Method 9 performance test shall be completed
within 3 calendar months from the date that the most recent performance test was
conducted or within 45 days of the next day that fuel with an opacity standard is
combusted, whichever is later; or
(iv) If the maximum 6-minute average opacity is greater than 10 percent, a subsequent
Method 9 performance test shall be completed within 45 calendar days from the
date that the most recent performance test was conducted.
(2) If the maximum 6-minute opacity is less than 10 percent during the most recent Method 9
performance test, the permittee may, as an alternative to performing subsequent Method
9 performance tests, elect to perform subsequent monitoring using Method 22 of 40 CFR
60, appendix A-7 according to the procedures specified in paragraphs (a)(2)(i) and (ii).
(i) The permittee shall conduct 10 minute observations (during normal operation) each
operating day the affected emission unit fires fuel for which an opacity standard is
applicable using Method 22 and demonstrate that the sum of the occurrences of any
visible emissions is not in excess of 5 percent of the observation period (i.e., 30
seconds per 10 minute period). If the sum of the occurrence of any visible emissions
is greater than 30 seconds during the initial 10 minute observation, the permittee
shall immediately conduct a 30 minute observation. If the sum of the occurrence of
visible emissions is greater than 5 percent of the observation period (i.e., 90 seconds
per 30 minute period), the permittee shall either document and adjust the operation
of the affected emission unit and demonstrate within 24 hours that the sum of the
occurrence of visible emissions is equal to or less than 5 percent during a 30 minute
observation (i.e., 90 seconds) or conduct a new Method 9 performance test using the

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procedures in paragraph (a) of this section within 45 calendar days according to the
requirements in 40 CFR 60.45c(a)(8).
(ii) If no visible emissions are observed for 10 operating days during which an opacity
standard is applicable, observations can be reduced to once every 7 operating days
during which an opacity standard is applicable. If any visible emissions are
observed, daily observations shall be resumed.
(3) If the maximum 6-minute opacity is less than 10 percent during the most recent Method 9
performance test, the owner or operator may, as an alternative to performing subsequent
Method 9 performance tests, elect to perform subsequent monitoring using a digital
opacity compliance system according to a site-specific monitoring plan approved by the
Director. The observations shall be similar, but not necessarily identical, to the
requirements in paragraph (a)(2). For reference purposes in preparing the monitoring
plan, see OAQPS "Determination of Visible Emission Opacity from Stationary Sources
Using Computer-Based Photographic Analysis Systems." This document is available
from the U.S. Environmental Protection Agency (U.S. EPA); Office of Air Quality and
Planning Standards; Sector Policies and Programs Division; Measurement Policy Group
(D243-02), Research Triangle Park, NC 27711. This document is also available on the
Technology Transfer Network (TTN) under Emission Measurement Center Preliminary
Methods.
b) For affected emission units that burn only distillate oil that contains no more than 0.5 weight
percent sulfur and/or liquid or gaseous fuels with potential sulfur dioxide emission rates of 26
ng/J (0.060 lb/MMBtu) heat input or less and that do not use a post-combustion technology to
reduce SO2 or PM emissions and that are subject to an opacity standard in 40 CFR 60.43c(c),
the permittee is not required to operate a COMS if the applicable procedures in 40 CFR
60.48c(f) below are followed. Fuel supplier certification shall include the following
information:
(1) The name of the oil supplier;
(2) A statement from the oil supplier that the oil complies with the specifications under the
definition of distillate oil in 40 CFR 60.41c; and
(3) The sulfur content or maximum sulfur content of the oil.
c) Affected emission units that are subject to an opacity standard in 40 CFR 60.43c(c) are not
required to operate a COMS provided the affected emission unit meets the conditions in either
paragraph (c)(1), (2), or (3).
(1) The affected emission unit uses a fabric filter (baghouse) as the primary PM control
device and, the permittee operates a bag leak detection system to monitor the
performance of the fabric filter according to the requirements in 40 CFR 60.48Da.
(2) The affected emission unit uses an ESP as the primary PM control device, and the
permittee uses an ESP predictive model to monitor the performance of the ESP
developed in accordance and operated according to the requirements in section 40 CFR
60.48Da.
(3) The affected emission unit burns only gaseous fuels and/or fuel oils that contain no
greater than 0.5 weight percent sulfur, and the permittee operates the unit according to a
written site-specific monitoring plan approved by the Director. This monitoring plan
shall include procedures and criteria for establishing and monitoring specific parameters
for the affected emission unit indicative of compliance with the opacity standard. For
testing performed as part of this site-specific monitoring plan, the Director may require
as an alternative to the notification and reporting requirements specified in 40 CFR 60.8
and 40 CFR 60.11 that the permittee submit any deviations with the excess emissions
report required under 40 CFR 60.48c(c).

[40 CFR 60.45c(a), 40 CFR 60.47c(a), 40 CFR 60.47c(c), 40 CFR 60.47c(f), 40 CFR 60.48c(f)].

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II.B.34.c.2 Recordkeeping:

a) In addition to the applicable requirements in 40 CFR 60.7, for affected emission units subject
to the opacity limits in 40 CFR 60.43c(c) the permittee shall maintain records according to the
requirements specified in paragraphs (a)(1) through (3), as applicable to the visible emissions
monitoring method used.
(1) For each performance test conducted using Method 9 of 40 CFR 60, appendix A-4, the
permittee shall keep records including the information specified in paragraphs (i) through
(iii) of this section.
(i) Dates and time intervals of all opacity observation periods;
(ii) Name, affiliation, and copy of current visible emission reading certification for each
visible emission observer participating in the performance test; and
(iii) Copies of all visible emission observer opacity field data sheets;
(2) For each performance test conducted using Method 22 of 40 CFR 60, appendix A-4, the
permittee shall keep records including the information specified in paragraphs (i) through
(iv) of this section.
(i) Dates and time intervals of all visible emissions observation periods;
(ii) Name and affiliation for each visible emission observer participating in the
performance test;
(iii) Copies of all visible emission observer opacity field data sheets; and
(iv) Documentation of any adjustments made and the time the adjustments were
completed to the affected emission unit operation by the permittee to demonstrate
compliance with the applicable monitoring requirements.
(3) For each digital opacity compliance system, the permittee shall maintain records
according to the requirements specified in the site-specific monitoring plan approved by
the Director.
[40 CFR 60.48c(c)]

Records shall be maintained as described in Provision I.S.1 of this permit.

II.B.34.c.3 Reporting:

A report for each six-month period shall be submitted to the Director and shall be postmarked by
the 30th day following the end of the reporting period and shall include the following information,
as applicable:
a) The performance test data from the initial and any subsequent performance tests.
b) In addition to the applicable requirements in 40 CFR 60.7, the permittee shall submit excess
emission reports for any excess emissions from the affected emission unit that occur during
the reporting period.
c) For each digital opacity compliance system, the permittee shall submit reports according to the
requirements specified in the site-specific monitoring plan approved by the Director.
[40 CFR 60.48c(b), 40 CFR 60.48c(c) , 40 CFR 60.48c(j)]

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – HAFB complies with (b) above, by using DLA Bill of Ladings that indicates
that only Diesel #2 is combusted on base. Two new boilers were being installed and
commissioned, in building 1286, at time of the inspection. The Initial Opacity Test for the
boilers was conducted on September 19, 2024. Boilers #2, #3, #8 and #9 in building 260 were

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being removed at time of the inspection. Semiannual NSPS Dc reports are submitted as
required and include results of the Opacity Tests. The last NSPS Dc report was received on
July 26, 2024. See Status of conditions II.B.33.c, II.B.34.a and II.B.34.b.

II.B.34.d Condition:

For each affected emission unit, the permittee shall submit notification of the date of construction or
reconstruction and actual startup, as provided by 40 CFR 60.7. [Origin: 40 CFR 60 Subpart Dc]. [40 CFR
60.48c(a)]

II.B.34.d.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.34.d.2 Recordkeeping:

The permittee shall keep a copy of each notification in accordance with Provision I.S.1 of this
permit.

II.B.34.d.3 Reporting:

In addition to the date of construction or reconstruction and actual startup, as provided by 40 CFR
60.7, each notification submitted to the Director shall include:
(1) The design heat input capacity of the affected emission unit and identification of fuels to be
combusted in the affected emission unit.
(2) If applicable, a copy of any federally enforceable requirement that limits the annual capacity
factor for any fuel or mixture of fuels under 40 CFR 60.42c, or 40 CFR 60.43c.
(3) The annual capacity factor at which the permittee anticipates operating the affected emission
unit based on all fuels fired and based on each individual fuel fired.
[40 CFR 60.48c(a)]

The permittee shall notify the EPA Administrator if an emerging technology will be used for
controlling SO2 emissions in accordance with 40 CFR 60.48c(a)(4).

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – A Construction Notice regarding the two new boilers in building 1286 was
received on August 12, 2024. And a Construction Notice regarding the three new temporary
rental boilers, which are temporarily replacing the five boilers in building 260 that are being
removed, was received on July 10, 2024. See status of conditions II.B.33.c and II.B.34.c.

II.B.35 Conditions on Waste Solvent Reclamation Units (Unit #40).

II.B.35.a Condition:

The total amount of waste solvent reclaimed shall be no greater than 40,000 gallons per rolling 12 month
period. [Origin: DAQE-AN0101210215-11]. [R307-401-8]

II.B.35.a.1 Monitoring:

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Records of waste solvent reclaimed shall be kept on a daily basis when in operation. By the 30th
of each month (or the 28th for February), the permittee shall calculate a new rolling 12-month
total using data from the previous 12 months.

II.B.35.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.35.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The total amount of waste solvent reclaimed was 84 gallons, as of July 31,
2024.

II.B.35.b Condition:

Flexibility Provisions - HAFB will be allowed to add or modify any waste solvent reclamation units,
provided that each of the following conditions are met:
1. The proposed addition or modification does not cause an increase in the currently established base-
wide limit of 40,000 gallons of reclaimed solvent per rolling 12 month period.
2. The new or modified equipment meets the approved BACT determination as provided in the subject
approval order.
[Origin: DAQE-AN0101210215-11]. [R307-401-8]

II.B.35.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.35.b.2 Recordkeeping:

Records of the notifications required by this condition shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.35.b.3 Reporting:

In addition to the reporting requirements in Section I of this permit, the permittee shall provide the
following notifications.
1. Notification of new or modified equipment installation shall be submitted to DAQ seven days
prior to such installation. Relocation or removal of equipment which does not involve a
modification (increase in emissions or installation of new air pollution control equipment) will
not require prior notification. Notification shall include equipment size, type, location,
conformity with BACT standards, estimated usage, and impact on the limitations in this
permit.
2. The permittee shall generate a list of operating waste solvent reclamation units (equipment
list) that are subject to this condition within three working days upon request from a
representative of the Director. This equipment list shall contain waste solvent reclamation
equipment size, type, location and equipment identification.

Status: In compliance – Notifications for any flexibility provision, which include emission limits,

121
BACT and equipment lists, are submitted and reviewed by NSR. The last notice, regarding
modification of waste solvent reclamation units was submitted and dated December 20,
2022.

II.B.35.c Condition:

The permittee shall operate each affected emission unit as specified below:
1. A cover shall be installed which shall remain closed except during set up of reclamation operations or
when adding or removing solvent.
2. Waste or used solvent shall be stored in covered containers. Waste solvents or waste materials which
contain solvents shall be disposed of by recycling, reclaiming, by incineration in an incinerator
approved to process hazardous materials, or by an alternate means approved by the Director.
3. Written procedures for the operation and maintenance of the waste solvent reclamation equipment
shall be permanently posted in an accessible and conspicuous location near the equipment.
4. Each affected emission unit shall be equipped with either a water cooled condenser, a refrigerated
chiller, carbon absorption, or other equivalent control device.
[Origin: DAQE-AN0101210215-11]. [R307-401-8]

II.B.35.c.1 Monitoring:

Visual inspection shall be made annually to determine compliance with this condition.

II.B.35.c.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.35.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – UECs conduct monthly visual inspections of the waste solvent reclamation
units. Oversite annual inspections are also conducted by Standtec. Inspections are entered
into a logbook which is not part of APIMS.

II.B.36 Conditions on Basewide Gasoline Stations and Transfer Operations (Unit #41).

II.B.36.a Condition:

For tanks subject to this condition, the permittee shall maintain records of the average monthly storage
temperature, the type of liquid, throughput quantities, and the maximum true vapor pressure. [Origin:
R307-327-4]. [R307-327-4]

II.B.36.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.36.a.2 Recordkeeping:

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The permittee shall maintain records of the average monthly storage temperature, the type of
liquid, throughput quantities, and the maximum true vapor pressure in accordance with Provision
I.S.1 of this permit.

II.B.36.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – There are 3 gas stations on HAFB. The control tower provides
meteorological data (temperature) and it is known that the maximum true vapor pressure of
gasoline is 7.8. Finally, gas stations provide the throughput of gasoline.

II.B.36.b Condition:

(1) For any stationary storage container or service station that dispenses 10,000 gallons or more in any
one calendar month, the permittee shall not transfer or permit the transfer of gasoline from any
gasoline cargo tank into any stationary storage container with a capacity of 250 gallons or greater
unless such container is equipped with a submerged fill pipe that extends to no more than twelve
inches from the bottom of the storage tank for fill pipes installed on or before November 9, 2006, and
no more than six inches from the bottom of the storage tank for fill pipes installed after November 9,
2006, and at least 90 percent of the gasoline vapor, by weight, displaced during the filling of the
stationary storage container is prevented from being released to the atmosphere. This requirement
shall not apply to:
(a) the transfer of gasoline into any stationary storage container of less than 550 gallons used
primarily for the fueling of implements of husbandry if such container is equipped with a
permanent submerged fill pipe;
(b) the transfer of gasoline into any stationary storage container having a capacity of less than 2,000
gallons which was installed prior to January 1, 1979, if such container is equipped with a
permanent submerged fill pipe;
(c) the transfer of gasoline to storage tanks equipped with floating roofs or their equivalent that
have been approved by the Director.
(2) The 90 percent performance standard of the vapor control system shall be based on operating
procedures and equipment specifications. The design effectiveness of such equipment and the
operating procedure must be documented and submitted to and approved by the Director.
(3) Each gasoline storage tank or gasoline cargo tank subject to paragraph (1), shall be equipped with
vapor control equipment, which includes, but is not limited to:
(a) vapor return lines and connections sufficiently free of restrictions to allow transfer of vapor to
the gasoline cargo tank or to the vapor control system, and to achieve the required recovery;
(b) a means of assuring that the vapor return lines are connected to the gasoline cargo tank, or vapor
control system, and storage tank during tank filling;
(c) restrictions in the storage tank vent line designed and operated to prevent:
(i) the release of gasoline vapors to the atmosphere during normal operation; and
(ii) gauge pressure in the gasoline cargo tank from exceeding 18 inches of water and vacuum
from exceeding 6 inches of water.
[Origin: R307-328-5]. [R307-328-5]

II.B.36.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

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II.B.36.b.2 Recordkeeping:

Records documenting compliance with the design requirements for each affected unit shall be
maintained in accordance with Provision I.S.1 of this permit.

II.B.36.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB showed drawings that confirm that submerged fill pipes having no
more the five inches from the bottom of the tank have been installed. In 2003, HAFB
submitted the operation and design document in a December 12, 2003, email . See Comment
12 of the Title V permit 1100007004.

II.B.36.c Condition:

(1) The permittee shall only use gasoline cargo tanks designed and maintained to be vapor tight during
loading and unloading operations as well as during transport, except for normal pressure venting
required under United States Department of Transportation Regulations.
(2) The design of the vapor recovery system shall be such that when the gasoline cargo tank is connected
to an approved storage tank vapor recovery system or loading terminal, 90% vapor recovery
efficiencies are realized. The connectors of the gasoline cargo tanks shall be compatible with the
fittings on the fill pipes and vapor vents at the storage containers and gasoline loading terminals
where the gasoline cargo tank will service or be serviced. Adaptors may be used to achieve
compatibility.
(3) The permittee shall not knowingly allow the introduction of gasoline into, dispensing of gasoline
from, or transportation of gasoline in a gasoline cargo tank that does not meet the leak tight testing
requirements of 40 CFR 63.425(e).
(4) A vapor-laden gasoline cargo tank may be refilled only at installations equipped to recover, process
or dispose of vapors. Gasoline cargo tanks that only service locations with storage containers
specifically exempted from the requirements of R307-328-5 need not be retrofitted to comply with
the requirements of R307-328-6(1)-(3), provided such gasoline cargo tanks are loaded through a
submerged fill pipe or approved equivalent equipment. The design and effectiveness of all equivalent
equipment shall be documented and submitted to and approved by the Director.
[Origin: R307-328-6, R307-328-7]. [R307-328-6, R307-328-7]

II.B.36.c.1 Monitoring:

Annually, based on the date of the most recent test, all gasoline cargo tanks and their vapor
collection systems shall be tested for leakage in accordance with the test methods and vapor
tightness standards in 40 CFR 63.425(e). (origin: R307-328-7).

II.B.36.c.2 Recordkeeping:

(a) The permittee or operator of a gasoline cargo tank shall have documentation in their
possession demonstrating that the gasoline cargo tank has passed the annual test in 40 CFR
63.425(e) within the preceding twelve months.
(b) Vapor tightness documentation, as well as record of any maintenance performed, shall be
retained by the permittee or operator of the gasoline cargo tank for a five year period and be
available for review by the director or the director's representative.

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(origin: R307-328-7)

Records and results of monitoring shall be maintained in accordance with Provision I.S.1 of this
permit.

II.B.36.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – This condition applies to the one gasoline tanker truck (AQUIS 18436) that
is owned and operated by HAFB. According to APIMS the truck came into operation in
February 17, 2004. APIMS also indicated that the last vapor tightness test was conducted on
November 2023, and that the next test is due November 2024.

II.B.37 Conditions on Melt Furnaces in Building 507 (Unit #42).

II.B.37.a Condition:

Natural gas consumption from melt furnaces shall be no greater than 0.289 MMSCF per calendar year
combined total for all melt furnaces. [Origin: DAQE-AN0101210189-08]. [R307-401-8]

II.B.37.a.1 Monitoring:

On a monthly basis, the permittee shall record the information needed to estimate natural gas
consumption. By the 30th day of January, the annual natural gas consumption for the previous
calendar year shall be calculated using the appropriate conversion of acf to scf, as recommended
by the vendor.

II.B.37.a.2 Recordkeeping:

Records such as gas meters, hours of operation, metal throughput, and estimated average burner
rate as a percent of design capacity can be used to determine natural gas consumption and shall be
maintained as described in Provision I.S.1 of this permit.

II.B.37.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – There is one melt furnace currently operating on HAFB, out of a total of three. The
other two furnaces have been removed. The one operating furnace is currently not being
used.

II.B.38 Conditions on IWTP (Unit #48)

II.B.38.a Condition:

Emissions from the IWTP air stripper system shall not exceed the following:
12.01 tons of VOC per rolling 12-month period
1.04 tons of Chloroform per rolling 12-month period

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7.38 tons of Methylene Chloride per rolling 12-month period
1.01 tons of all other HAPs combined per rolling 12-month period
[Origin: DAQE-AN101210262-19]. [R307-401-8]

II.B.38.a.1 Monitoring:

At least once each quarter, when in operation, wastewater samples shall be collected upstream and
downstream of the towers and analyzed for VOC and HAP concentrations in accordance with one
or more of the following methods: Method 624, Method 625-1, and/or other EPA-approved
methods, as approved by the Director, as necessary to quantify VOC and HAP concentrations in
the wastewater sample. All wastewater samples shall be collected, preserved and handled in
accordance with the applicable collection, preservation and handling protocols required by the test
method and as follows:
(1) Samples shall be collected in clean vials/bottles of a size appropriate for the required method.
(2) Vial/bottle shall be inverted to avoid collecting any bubbles.
(3) Vial/bottle shall be filled with minimum disturbance of the stream surface.

The permittee shall demonstrate compliance with the rolling 12-month total for each emission
limit. By the 30th day of each month (28th day for February), a rolling 12-month total of VOC
and HAP emissions shall be calculated using the differential VOC and HAP concentrations (from
the quarterly or more frequent sampling), daily wastewater throughput, and data from the previous
12 months.

Wastewater sampling for VOCs and HAPs shall not be required for those quarters in which the air
strippers were not in operation.

II.B.38.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.38.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Emissions from the IWTP air stripper, as of July 31, 2024:

Pollutant Permitted Limit (Tons) Rolling 12-Month Period (Tons)
VOC 12.01 0.027
Chloroform 1.04 0.00
Methylene Chloride 7.38 0.069
Combined HAPs 1.01 0.00

II.B.38.b Condition:

Visible emissions from the wet scrubber shall be no greater than 20 percent opacity. [Origin: DAQE-
AN101210262-19]. [R307-401-8]

II.B.38.b.1 Monitoring:

126

A visual opacity observation of the sludge dryer wet scrubber stack shall be performed on a
monthly basis when the unit operates, by an individual trained on the observation procedures of
40 CFR 60, Appendix A, Method 9. The individual is not required to be a certified visible
emissions observer. If visible emissions are observed, an opacity determination of that emission
unit shall be performed within 24 hours of the initial survey or upon startup if the unit must be
shut down for maintenance by a certified visible emissions observer in accordance with 40 CFR
60, Appendix A, Method 9.

II.B.38.b.2 Recordkeeping:

The permittee shall record the date of each visual opacity observation. The permittee shall also
keep a log of the following information for each opacity determination: emission point location
and description, date and time visible emissions observed, date and time of opacity test, and
percent opacity. The records required by this provision and all data required by 40 CFR 60,
Appendix A, Method 9 shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.38.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The IWTP operator performs monthly opacity observations of the wet
scrubber. The operator also maintains a Monthly Observation Checklist. Oversite
inspections of the checklists are conducted semiannually by Standtec. EPA Method
observation are also completed by Standtec if required. The Observation Checklists are
tracked in APIMS, which were reviewed at time of the inspection.

II.B.38.c Condition:

The scrubber shall operate at all times that the sludge dryer is operated. A provisional compliant pressure
drop range shall be determined and documented within the first 120 hours of scrubber operation. The
scrubber shall be operated within the provisional compliant pressure drop range determined by operational
experience. The provisional compliant pressure drop range shall be posted near the pressure drop monitor
in a way that it is accessible to plant personnel as well as to the Director or a representative. The
provisional compliant pressure drop range shall be included in the corresponding Operation and
Maintenance Plan for this air pollution control device. Dryer operation shall cease if an excursion of more
than two inches of water column outside the provisional compliant pressure drop range occurs.
[Origin: DAQE-AN101210262-19]. [R307-401-8]

II.B.38.c.1 Monitoring:

The permittee shall install a pressure drop monitoring system (manometer or magnehelic pressure
differential gauge) to measure the pressure drop across the scrubber. The scrubber shall be
equipped with a primary pressure drop monitoring system (pressure differential gauge) with set
point alarms that are actuated if the pressure drop exceeds the provisional compliant pressure
drop. This pressure drop monitoring system shall be operated at all times that the sludge dryer is
operational. The permittee shall monitor and record the pressure drop once each day the scrubber
operates. Any maintenance of the primary pressure drop monitoring system that cannot be
performed within one (1) hour shall be scheduled for times when the sludge dryer is not in use
unless a secondary pressure drop monitoring system (std. manometer) is installed.

127

II.B.38.c.2 Recordkeeping:

The permittee shall maintain records of daily pressure drop measurements. In addition, records of
each non- routine (not regularly scheduled) alarm occurrence shall be kept and shall include:
A. Date & time of alarm
B. Problems encountered
C. Corrective action performed.

Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.38.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – A pressure drop monitoring system is installed and the range posted. The
daily pressure drop measurements are logged in a log book. Oversite inspections, of the log
book, are conducted semiannually by Standtec. The pressure drop log book is tracked in
APIMS, which was reviewed at time of the inspection.

II.B.39 Conditions on Air Handlers (Unit #50).

II.B.39.a Condition:

The combined consumption of natural gas in the air handlers rated at greater than or equal to 5 MMBtu/hr
and less than or equal to 20 MMBtu/hr shall not exceed 450 MMcf per rolling 12-month period. [Origin:
DAQE-AN101210237-15]. [R307-401-8]

II.B.39.a.1 Monitoring:

The combined consumption of natural gas shall be monitored with fuel meters on the heaters. By
the 30th of each month (or the 28th for February), the permittee shall calculate a new rolling 12-
month total using data from the previous 12 months.

II.B.39.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.39.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Natural gas consumption of the air handlers was 36.8 MMCF, as of July 31,
2024.

II.B.39.b Condition:

128
Flexibility Provisions - The permittee is allowed to add or modify any air handler rated at greater than or
equal to 5 MMBtu/hr and less than or equal to 20 MMBtu/hr, equipped with a Low NOx burner, provided
that each of the following conditions is met:
1. The proposed addition or modification does not cause an increase in the currently established base-
wide limit of 450 MMcf of natural gas consumed per rolling 12 month period for air handlers rated at
greater than or equal to 5 MMBtu/hr and less than or equal to 20 MMBtu/hr.
2. The new or modified equipment shall meet the requirements listed in the subject approval order as
BACT.
[Origin: DAQE-AN101210237-15]. [R307-401-8]

II.B.39.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.39.b.2 Recordkeeping:

Records of the notifications required by this condition shall be maintained consistent with the
requirements of Provision S.1 in Section I of this permit.

II.B.39.b.3 Reporting:

In addition to the reporting requirements in Section I of this permit, the permittee shall provide the
following notifications.
1. Notification of new or modified equipment installation shall be submitted to DAQ seven days
prior to such installation. Relocation, replacement, or removal of equipment which does not
involve a modification (increase in emissions or installation of new air pollution control
equipment) will not require prior notification. Notification shall include equipment size, type,
location, conformity with BACT Standards, NESHAP applicability, estimated usage, and
impact on the limitation in this permit.
2. The permittee shall generate a list of all operating air handlers rated at greater than or equal to
5 MMBtu/hr and less than or equal to 20 MMBtu/hr that are subject to this condition within
three working days upon request from a representative of the director. This equipment list
shall contain air handler equipment size, NESHAP applicability, type, location and equipment
identification.

Status: In compliance – Notifications for any flexibility provision, which include emission limits,
BACT and equipment lists, are submitted and reviewed by NSR. The last notice, regarding
modification of air handlers was submitted on November 24, 2014.

II.B.40 Conditions on Landfill Gas Fired Power Generation Facility (Unit #51).

II.B.40.a Condition:

Visible emissions shall be no greater than 10 percent opacity. [Origin: DAQE-AN101210251-17]. [R307-
401-8]

II.B.40.a.1 Monitoring:

The permittee shall apply one of the following monitoring techniques to each affected emission
unit:

129
A. An annual opacity determination performed by a certified visible emissions observer in
accordance with 40 CFR 60, Appendix A, Method 9.
B. Quarterly photogrametric opacity observations conducted by an individual trained on the
observation procedures of 40 CFR 60, Appendix A, Method 9. The observer does not have to
be a certified Method 9 observer. If an opacity of 10 percent or more is detected by the
photogrametric analysis, an opacity determination of that emission point shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method
9 within 24 hours of the initial photogrametric opacity observation.

The monitoring option selected can vary from unit to unit. Also if quarterly photogrametric
opacity observations are being conducted for a given unit and the permittee cannot conduct a
photogrametric opacity observation in a quarter, an opacity determination conducted in
accordance with the procedures of 40 CFR 60, Appendix A, Method 9 will satisfy the monitoring
requirements of this condition.

II.B.40.a.2 Recordkeeping:

The permittee shall maintain a log of opacity determinations and/or photogrametric observations
which includes the following information for each affected emission unit: the date and time of
each photogrametric opacity observation and/or 40 CFR 60, Appendix A, Method 9 opacity
determination, the specific monitoring technique used (Method 9 or photogrametric) and the result
of the opacity monitoring. The records required by this provision and all data required by 40 CFR
60, Appendix A, Method 9 shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.40.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – There are three Landfill Gas Generator (LFG) engines (AQUIS 38838,
38539 and 38538) in Bldg. 737. HAFB complies with item (A.) above, by conducting an
annual Visible Emission Observation (VEO) of the engines. The VEOs are performed by
Standtec inspectors who are EPA Method 9 certified. The engines may not be operating,
when it is time to conduct the VEO, due circumstances of the contractor currently operating
the engines.

II.B.40.b Condition:

Emissions of CO shall be no greater than 3.3 grams/bhp-hr from each of the 814 bhp and 1148 bhp lean
burn engines. [Origin: DAQE-AN101210251-17]. [R307-401-8]

II.B.40.b.1 Monitoring:

Stack testing shall be performed as specified below:
(a) Frequency. Initial compliance testing is required on each engine within 180 days of startup.
Emissions shall then be tested every three years using a portable analyzer or every five years
using methods noted below. If the source is suspected to be in violation with the emission
limits stated in the permit, testing may be required.
(b) Notification. At least 30 days before the test, the permittee shall notify the Director of the
date, time, and place of testing and provide a copy of the test protocol. The source shall
attend a pretest conference if determined necessary by the Director.

130
(c) Sample Location. The emission point shall be designed to conform to the requirements of 40
CFR 60, Appendix A, Method 1A, or other methods as approved by the Director. An
Occupational Safety and Health Administration (OSHA) or Mine Safety and Health
Administration (MSHA) approved access shall be provided to the test location.
(d) Volumetric Flow Rate. 40 CFR 60, Appendix A, Method 2 or 40 CFR 60, Appendix A,
Method 19.
(e) Carbon Monoxide (CO). 40 CFR 60, Appendix A, Method 10
(f) Calculations. To determine mass emission rates (grams/bhp-hr, etc.) the pollutant
concentration as determined by the appropriate methods above shall be multiplied by the
volumetric flow rate if using 40 CFR 60, Appendix A, Method 2 or using the appropriate
equation in 40 CFR 60 Appendix A Method 19 and any necessary conversion factors
determined by the Director, to give the results in the specified units of the emission
limitation.

II.B.40.b.2 Recordkeeping:

Results of all stack testing shall be recorded and maintained in accordance with the associated test
method and Provision S.1 in Section I of this permit.

II.B.40.b.3 Reporting:

In addition to the reporting requirements of Section I of this permit, the permittee shall submit the
results of the stack tests to the Director within 60 days of completion of the testing. Results shall
clearly identify test results as compared to permit limits and indicate compliance status.

Status: N/A – Stack tests are reviewed by the DAQ stack test auditor. The last stack test in the
source’s file is as follows:

Source Test
Date
RM/Pollutan
t
DAQ
Result
Test Result Limit
Engine 1 5/10/23
7E/NOx 1.8 g/bhp-
hr
1.8 g/bhp-
hr
2.0 g/bhp-hr
10/CO 2.1 g/bhp-
hr
2.1 g/bhp-
hr
3.3 g/bhp-hr
Engine 2 5/9/23
7E/NOx 1.5 g/bhp-
hr
1.5 g/bhp-
hr
2.0 g/bhp-hr
10/CO 1.5 g/bhp-
hr
1.5 g/bhp-
hr
3.3 g/bhp-hr
Engine 3 12/6/23 -
12/7/23
7E/NOx 0.34 g/bhp-
hr
0.34 g/bhp-
hr
0.1 g/bhp-hr
10/CO 2.1 g/bhp-
hr
2.1 g/bhp-
hr
2.5 g/bhp-hr
Alt
096/VOC
0.37 g/bhp-
hr
0.37 g/bhp-
hr
1.0 g/bhp-hr

See DAQC-789-23 memo.

The next stack test is required to be conducted in 2026. However, the LFG engines will not be in
operation in 2026. Therefore, the next stack test will not be conducted.

131
II.B.40.c Condition:

Emissions of NOx shall be no greater than 2.0 grams/bhp-hr from each of the 814 bhp and 1148 bhp lean
burn engines. [Origin: DAQE-AN101210251-17]. [R307-401-8]

II.B.40.c.1 Monitoring:

Stack testing shall be performed as specified below:
(a) Frequency. Initial compliance testing is required on each engine within 180 days of startup.
Emissions shall then be tested every three years using a portable analyzer or every five years
using methods noted below. If the source is suspected to be in violation with the emission
limits stated in the permit, testing may be required.
(b) Notification. At least 30 days before the test, the permittee shall notify the Director of the
date, time, and place of testing and provide a copy of the test protocol. The source shall
attend a pretest conference if determined necessary by the Director.
(c) Sample Location. The emission point shall be designed to conform to the requirements of 40
CFR 60, Appendix A, Method 1A, or other methods as approved by the Director. An
Occupational Safety and Health Administration (OSHA) or Mine Safety and Health
Administration (MSHA) approved access shall be provided to the test location.
(d) Volumetric Flow Rate. 40 CFR 60, Appendix A, Method 2 or 40 CFR 60, Appendix A,
Method 19.
(e) Nitrogen Oxides (NOx). 40 CFR 60, Appendix A, Method 7, 7A, 7B, 7C, 7D or 7E
(f) Calculations. To determine mass emission rates (grams/bhp-hr, etc.) the pollutant
concentration as determined by the appropriate methods above shall be multiplied by the
volumetric flow rate if using 40 CFR 60, Appendix A, Method 2 or using the appropriate
equation in 40 CFR 60 Appendix A Method 19 and any necessary conversion factors
determined by the Director, to give the results in the specified units of the emission
limitation.

II.B.40.c.2 Recordkeeping:

Results of all stack testing shall be recorded and maintained in accordance with the associated test
method and Provision S.1 in Section I of this permit.

II.B.40.c.3 Reporting:

In addition to the reporting requirements of Section I of this permit, the permittee shall submit the
results of the stack tests to the Director within 60 days of completion of the testing. Results shall
clearly identify test results as compared to permit limits and indicate compliance status.

Status: N/A – Stack tests are reviewed by the DAQ stack test auditor. The next stack test is required
to be conducted in 2026. However, the LFG engines will not be in operation in 2026.
Therefore, the next stack test will not be conducted. See the last stack test, regarding NOx,
in condition II.B.40.b.

II.B.40.d Condition:

Permittee shall ensure that 10 percent or more of the gross heat input to the affected emission units on an
annual basis shall be from the combustion of landfill gas. In addition, the permittee shall operate the
affected emission units in a manner that reasonably minimizes HAP emissions. [Origin: 40 CFR 63
Subpart ZZZZ]. [40 CFR 63.6625(c)]

132

II.B.40.d.1 Monitoring:

The permittee shall monitor and record fuel usage daily with separate fuel meters to measure the
volumetric flow rate of each fuel. (40 CFR 63.6625(c)).

II.B.40.d.2 Recordkeeping:

The permittee shall keep records of daily fuel usage for each fuel type in accordance with
Provision I.S.1 of this permit.

II.B.40.d.3 Reporting:

In addition to the reporting requirements specified in Section I of this permit, the permittee shall
submit an annual report postmarked or delivered no later than January 31. The report shall contain
the following data:
(1) Fuel flow rate of each fuel and the heating values that were used in calculations provided in
this paragraph. The permittee shall demonstrate that the percentage of heat input provided by
landfill gas is equivalent to 10 percent or more of the total fuel consumption on an annual
basis.
(2) The operating limits provided in the federally enforceable permit, and any deviations from
these limits.
(3) Any problems or errors suspected with the meters.
(40 CFR 63.6650(g)).

Status: In compliance – A Landfill Annual Gas Report / RICE NESHAP Report was submitted
correcting engine #3 heat input value, as of April 2023, from 34% to 12%. There were no
deviations from the operating limits for opacity, CO and NOx. No problems or errors were
reported for the fuel metering equipment. The 2023 NESHAP Landfill Fired Powered
Generation Facility report was original submitted on January 22, 2024, and resubmitted on
April 8, 2024.

II.B.40.e Condition:

i. For each affected emission unit with a maximum engine power greater than 19 KW (25 HP), that is
modified or reconstructed after June 12, 2006, the permittee shall comply with the emission standards
specified in 40 CFR 60.4233(e) for stationary landfill/digester gas engines. (40 CFR 60.4233(f)(5))
ii. The permittee shall operate and maintain affected emission units that achieve the emission standards
as required in this condition over the entire life of the engine. (40 CFR 60.4234)
iii. Additionally, for the 1350 bhp lean burn engine, emissions of NOx shall not exceed 1.0 g/bhp-hr and
emissions of CO shall not exceed 2.5 g/bhp-hr. (DAQE-AN101210251-17)
[Origin: 40 CFR 60 Subpart JJJJ, DAQE-AN101210251-17]. [40 CFR 60.4233, 40 CFR 60.4234, 40 CFR
60 Subpart JJJJ Table 1, R307-401-8]

II.B.40.e.1 Monitoring:

For each affected non-certified emission unit, the permittee shall demonstrate compliance as
follows.
(a) Keep a maintenance plan and records of conducted maintenance and shall, to the extent
practicable, maintain and operate the engine in a manner consistent with good air pollution
control practice for minimizing emissions. (40 CFR 60.4243(b)(2)(ii))

133
(b) Following the initial performance test, subsequent performance testing shall be conducted
every 8,760 hours or 3 years, whichever comes first, thereafter to demonstrate compliance.
(40 CFR 60.4243(b)(2)(ii), 40 CFR 60.4243(i)(2))
(c) Conduct performance tests in accordance with the procedures in 40 CFR 60.4244(a) through
(g). (40 CFR 60.4244)
(40 CFR 60.4243(c))

II.B.40.e.2 Recordkeeping:

For each affected emission unit, the permittee shall keep records of the information in paragraphs
(a) through (c) of this section.
(a) All notifications submitted to comply with this condition and all documentation supporting
any notification.
(b) Maintenance conducted on each affected emission unit.
(c) If the affected emission unit is not a certified engine, documentation that the engine meets the
emission standards.
(40 CFR 60.4245(a))

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.40.e.3 Reporting:

The permittee shall submit the following notifications and reports.
(a) For affected emission units greater than or equal to 500 HP that have not been certified by an
engine manufacturer to meet the emission standards in 40 CFR 60.4231, the permittee shall
submit an initial notification as required in 40 CFR 60.7(a)(1). The notification shall include
the information in paragraphs (a)(1) through (5) of this section.
(1) Name and address of the permittee;
(2) The address of the affected emission unit;
(3) Engine information including make, model, engine family, serial number, model year,
maximum engine power, and engine displacement;
(4) Emission control equipment; and
(5) Fuel used.
(40 CFR 60.4245(c))
(b) For affected emission units that are subject to performance testing, the permittee shall submit
a copy of each performance test as conducted in 40 CFR 60.4244 within 60 days after the test
has been completed. Reports shall be submitted in accordance with 40 CFR 60.4245(d) and
Section I of this permit.

Status: N/A – This condition incorporates the AO issued October 25, 2017, for the rebuilt #3 LFG
imported engine AQUIS 58838 (1,350 hp). The next stack test is required to be conducted in 2026.
However, the LFG engines will not be in operation in 2026. Therefore, the next stack test will not
be conducted. Maintenance is performed as required. See condition II.B.40.b for engine #3 test
results.

II.B.40.f Condition:

For each new or reconstructed stationary RICE with a site rating of more than 500 brake HP which
combusts landfill or digester gas equivalent to 10 percent or more of the gross heat input on an annual
basis, the permittee shall submit an Initial Notification as required in 40 CFR 63.6645(f). [Origin: 40
CFR 63 Subpart ZZZZ]. [40 CFR 63.6590(b)(2)]

134

II.B.40.f.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.40.f.2 Recordkeeping:

The permittee shall keep a copy of each notification in accordance with 40 CFR 63.6660 and
Provision I.S.1 of this permit.

II.B.40.f.3 Reporting:

For each affected emission unit, the permittee shall submit an Initial Notification containing the
information in 40 CFR 63.9(b)(2)(i) through (v), and a statement that the stationary RICE has no
additional requirements and that explains the basis of the exclusion. There are no additional
reporting requirements for this provision except those specified in Section I of this permit.

Status: In compliance – This condition pertains to the #3 LFG engine, which was rebuilt in 2017
(AO issued October 25, 2017). HAFB keeps a copy of the initial notice. The rebuilt of the
engine triggered Subpart J.

II.B.41 Conditions on Fuel Storage Tanks (Unit #52)

II.B.41.a Condition:

The combined fuel received by above ground and underground fuel storage tanks with a capacity greater
than or equal to 19,812 gallons, shall not exceed the following rolling 12-month limits:
1) 7,500,000 gallons diesel fuel
2) 642,000 gallons gasoline fuel
3) 102,000,000 gallons jet fuel*
*Jet fuel consists of Jet-A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene, or equivalent fuels as determined
by the director.
[Origin: DAQE-AN101210260-19]. [R307-401-8]

II.B.41.a.1 Monitoring:

To demonstrate compliance with each limit, by the 30th day (28th for February) of each month, a
rolling 12-month total of fuel received shall be determined using records from the previous 12
months.

II.B.41.a.2 Recordkeeping:

Records demonstrating compliance with this permit condition shall be maintained in accordance
with Provision I.S.1 of this permit. Records may be kept in electronic form and include, but are
not limited to, tanker truck and pipeline delivery logs.

II.B.41.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

135
Status: In compliance – The combined fuel received by above ground and underground storage
tanks greater than or equal to 19, 812 gallons, as of July 31, 2024:

Fuel Permitted Limit (Gallons) Rolling 12-Month Period (Gallons)
Diesel 7,500,000 219,726
Gasoline 642,000 104,714
Jet 102,000,000 20,897,237

II.B.41.b Condition:

For above ground and underground fuel storage tanks with a capacity greater than or equal to 500 gallons
and less than 19,812 gallons, the total combined capacity of in-service fuel storage tanks basewide, by fuel
type, shall not exceed the following limits at any time:
1) 770,000 gallons combined capacity for diesel tanks
2) 123,000 gallons combined capacity for gasoline tanks
3) 600,000 gallons combined capacity for jet fuel* tanks
*Jet fuel consists of Jet-A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene, or equivalent fuels as determined
by the director.
[Origin: DAQE-AN101210260-19]. [R307-401-8]

II.B.41.b.1 Monitoring:

To demonstrate compliance with each limit, by the 30th day (28th for February) of each month,
the total combined tank capacity (by fuel type) shall be determined.

II.B.41.b.2 Recordkeeping:

Records demonstrating compliance with this permit condition shall be maintained in accordance
with Provision I.S.1 of this permit. Records may be kept in electronic form and include, but are
not limited to, tank capacity and fuel contained.

II.B.41.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The combined fuel received by above ground and underground storage
tanks greater than or equal to 500 gallons and less than 19,812, as of July 31, 2024:

Fuel Permit Limit (Gallons) Rolling 12-Month Period (Gallons)
Diesel 770,000 194,746
Gasoline 123,000 59,050
Jet 600,000 132,500

II.B.41.c Condition:

Flexibility Provisions - The permittee is allowed to add or modify any above ground or underground fuel
storage tank, provided the fuel storage tank capacity is less than 19,812 gallons and the capacity
limitations in condition II.B.41.b are not exceeded. The new or modified fuel storage tanks shall be
horizontal, fixed roof tanks or better with submerged fill. [Origin: DAQE-AN101210260-19]. [R307-401-
8]

136
II.B.41.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.41.c.2 Recordkeeping:

The permittee shall maintain records demonstrating compliance with this condition including, but
not limited to, records of the required notifications. Records shall be maintained in accordance
with Provision I.S.1 of this permit.

II.B.41.c.3 Reporting:

The permittee shall provide a notification for the addition or modification of any above ground or
underground fuel storage tank with a tank capacity greater than or equal to 500 gallons and less
than 19,812 gallons. The notification shall meet the following:
a) Notification shall be submitted to UDAQ seven days prior to installation. Relocation,
replacement, or removal of fuel storage tanks with capacity less than 19,812 gallons does not
trigger a modification and does not require prior notification.
b) Notification shall include the following information on the new storage tank: fuel storage tank
capacity, fuel type, tank type, and updated total combined capacity of fuel storage tanks.
c) The permittee shall demonstrate the proposed addition does not cause an increase in the
currently established base-wide fuel storage tank capacity limits. This demonstration shall
include fuel storage tanks listed with AQUIS number, fuel type, fuel tank capacity and status
of equipment.
d) The permittee shall conduct a new BACT analysis on fuel storage tanks to address new fuel
storage tank control technology if requested by UDAQ. The referenced AO may be reissued
by UDAQ to incorporate the new BACT for any future changes under this condition.
e) The permittee shall generate a list of all fuel storage tank capacity greater than or equal to 500
gallons and less than 19,812 gallons that is subject to this condition within three working days
upon request from a representative of the Director. This fuel storage tank list shall include
AQUIS number, fuel type, fuel tank capacity and status of equipment.

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – Notifications of flexibility provision, regarding above ground and
underground fuel takes are submitted with the above requirements. The last notice was
emailed on April 15, 2024.

II.B.42 Conditions on Plasma Cutting Booth and Baghouse in Building 507 (Unit #53).

II.B.42.a Condition:

Visible emissions shall be no greater than 10 percent opacity. [Origin: DAQE-AN0121159-04]. [R307-
401-8]

II.B.42.a.1 Monitoring:

A visual opacity survey of each affected emission unit shall be performed on a monthly basis by
an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If
visible emissions other than steam are observed from an emission unit, an opacity determination

137
of that emission unit shall be performed by a certified observer within 24 hours of the initial
survey. The opacity determination shall be performed in accordance with 40 CFR 60, Appendix
A, Method 9.

II.B.42.a.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall maintain all the records
required by this provision and all data required by 40 CFR 60, Appendix A, Method 9 in
accordance with Provision I.S.1 of this permit.

II.B.42.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – The booth has been removed.

II.B.43 Conditions on NSPS Compression Ignition Internal Combustion Eng (Unit #55).

II.B.43.a Condition:

The permittee shall operate and maintain affected emission units that achieve the emission standards as
required in 40 CFR 60.4204 and 40 CFR 60.4205 over the entire life of the engine. The permittee shall do
all of the following, except as permitted in II.B.43.a.1(b):
(1) Operate and maintain the stationary CI ICE and control device according to the manufacturer's
emission-related written instructions;
(2) Change only those emission-related settings that are permitted by the manufacturer; and
(3) Meet the requirements of 40 CFR part 1068, as applicable.
[Origin: 40 CFR 60 Subpart IIII]. [40 CFR 60.4206, 40 CFR 60.4211(a), 40 CFR 63 Subpart ZZZZ]

II.B.43.a.1 Monitoring:

(a) The permittee shall document activities performed to assure proper operation and
maintenance.
(b) If the permittee does not install, configure, operate, and maintain affected emission units and
control devices according to the manufacturer's emission-related written instructions, or
changes emission-related settings in a way that is not permitted by the manufacturer, the
permittee shall demonstrate compliance as follows:
(1) For affected emission units with maximum engine power less than 100 HP:
a. Keep a maintenance plan and records of conducted maintenance to demonstrate
compliance; and
b. To the extent practicable, maintain and operate the engine in a manner consistent
with good air pollution control practice for minimizing emissions; and
c. If the permittee does not install and configure the engine and control device
according to the manufacturer's emission-related written instructions, or changes the
emission-related settings in a way that is not permitted by the manufacturer, the
permittee shall conduct an initial performance test to demonstrate compliance with
the applicable emission standards within 1 year of such action.
(2) For affected emission units greater than or equal to 100 HP and less than or equal to 500
HP:

138
a. Keep a maintenance plan and records of conducted maintenance; and
b. To the extent practicable, maintain and operate the engine in a manner consistent
with good air pollution control practice for minimizing emissions; and
c. Conduct an initial performance test to demonstrate compliance with the applicable
emission standards within 1 year of startup, or within 1 year after an engine and
control device is no longer installed, configured, operated, and maintained in
accordance with the manufacturer's emission-related written instructions, or within 1
year after changing emission-related settings in a way that is not permitted by the
manufacturer.
(3) For affected emission units greater than 500 HP:
a. Keep a maintenance plan and records of conducted maintenance; and
b. To the extent practicable, maintain and operate the engine in a manner consistent
with good air pollution control practice for minimizing emissions; and
c. Conduct an initial performance test to demonstrate compliance with the applicable
emission standards within 1 year of startup, or within 1 year after an engine and
control device is no longer installed, configured, operated, and maintained in
accordance with the manufacturer's emission-related written instructions, or within 1
year after changing emission-related settings in a way that is not permitted by the
manufacturer. The permittee shall conduct subsequent performance testing every
8,760 hours of engine operation or 3 years, whichever comes first, thereafter to
demonstrate compliance with the applicable emission standards.
(Origin: 40 CFR 60.4211(g)).

II.B.43.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.43.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Compression ignition (CI) engines are installed, maintained and operated
according to the manufacture recommendations. Monthly inspection checklists and hours of
operation are tracked in APIMS.

II.B.43.b Condition:

The permittee of affected emission units with a displacement of less than 30 liters per cylinder that use
diesel fuel shall use diesel fuel that meets the following ULSD per-gallon standards of 40 CFR 1090.305
for nonroad diesel fuel.
1. Maximum sulfur content of 15 ppm and
2. A minimum cetane index of 40 or a maximum aromatic content of 35 volume percent.
[Origin: 40 CFR 60 Subpart IIII]. [40 CFR 60.4207(b), 40 CFR 63 Subpart ZZZZ]

II.B.43.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.43.b.2 Recordkeeping:

139
For each fuel load received, the permittee shall maintain either fuel receipt records or other
documentation showing fuel meets the specifications of ASTM D975 for the cetane index and
sulfur content for Grades No. 1-D S15 or 2-D S15 diesel. The permittee shall maintain
documentation demonstrating compliance with the condition. These records shall be maintained
in accordance with Provision I.S.1. of this permit.

II.B.43.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Defense Logistic Agency (DLA) invoices indicated that Diesel #2 with a
minimum cetane index of 40 is used to fuel on base engines.

II.B.43.c Condition:

The permittee shall operate the emergency affected emission units according to the requirements in
paragraphs (1) through (3). In order for the engine to be considered an emergency stationary ICE under
40 CFR 60 Subpart IIII, any operation other than emergency operation, maintenance and testing, and
operation in non-emergency situations for 50 hours per year, as described in (1) through (3), is prohibited.
If the engine is not operated in accordance with paragraphs (1) through (3), it will not be considered an
emergency engine and shall meet all requirements for non-emergency engines.
(1) There is no time limit on the use of emergency stationary ICE in emergency situations.
(2) Emergency stationary ICE may be operated for any combination of the purposes specified in
paragraph (a) for a maximum of 100 hours per calendar year. Any operation for non-emergency
situations as allowed by paragraph (3) counts as part of the 100 hours per calendar year allowed by
this paragraph (2).
(a) Emergency stationary ICE may be operated for maintenance checks and readiness testing,
provided that the tests are recommended by federal, state or local government, the manufacturer,
the vendor, the regional transmission organization or equivalent balancing authority and
transmission operator, or the insurance company associated with the engine. A petition for
approval of additional hours to be used for maintenance checks and readiness testing is not
required if the permittee maintains records indicating that federal, state, or local standards
require maintenance and testing of emergency ICE beyond 100 hours per calendar year.
(3) Emergency engines may operate up to 50 hours per calendar year in non-emergency situations. The
50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar
year for maintenance and testing provided in paragraph (2). Except as provided in paragraph (3)(a),
the 50 hours per calendar year for non-emergency situations cannot be used for peak shaving or non-
emergency demand response, or to generate income for the permittee to an electric grid or otherwise
supply power as part of a financial arrangement with another entity.
(a) The 50 hours per year for non-emergency situations can be used to supply power as part of a
financial arrangement with another entity if all of the following conditions are met:
(i) The engine is dispatched by the local balancing authority or local transmission and
distribution system operator;
(ii) The dispatch is intended to mitigate local transmission and/or distribution limitations so as
to avert potential voltage collapse or line overloads that could lead to the interruption of
power supply in a local area or region.
(iii) The dispatch follows reliability, emergency operation or similar protocols that follow
specific NERC, regional, state, public utility commission or local standards or guidelines.
(iv) The power is provided only to the permittee itself or to support the local transmission and
distribution system.

140
(v) The permittee identifies and records the entity that dispatches the engine and the specific
NERC, regional, state, public utility commission or local standards or guidelines that are
being followed for dispatching the engine. The local balancing authority or local
transmission and distribution system operator may keep these records on behalf of the
permittee.
[Origin: 40 CFR 40 CFR 60 Subpart IIII]. [40 CFR 60.4211(f), 40 CFR 63 Subpart ZZZZ]

II.B.43.c.1 Monitoring:

If an emergency affected emission unit does not meet the standards applicable to non-emergency
engines, the permittee shall install a non-resettable hour meter prior to startup of the engine.
[origin: 40 CFR 60.4209(a)] Records required for this permit condition will also serve as
monitoring.

II.B.43.c.2 Recordkeeping:

Records of each affected emission unit shall be kept on a monthly basis in an operation and
maintenance log. Records shall distinguish between maintenance-related hours and emergency
use-related hours. If additional hours are to be used for maintenance checks and readiness testing,
the permittee shall maintain records indicating that federal, state, or local standards require
maintenance and testing of emergency ICE beyond 100 hours per calendar year.

Starting with the model years in Table 5 of 40 CFR 60 Subpart IIII, if an affected emission unit
does not meet the standards applicable to non-emergency engines in the applicable model year,
the permittee shall keep records of the operation of the engine in emergency and non-emergency
service that are recorded through the non-resettable hour meter. The permittee shall record the
time of operation of the engine and the reason the engine was in operation during that time.
(Origin: 40 CFR 60.4214(b))

Records shall be maintained as described in Provision I.S.1 of this permit.

II.B.43.c.3 Reporting:

For each affected emergency emission unit with a maximum engine power more than 100 HP that
operates for the purposes specified in Condition II.B.43.c(3) (40 CFR 60.4211(f)(3)(i)), the
permittee shall submit an annual report according to the requirements in paragraphs (i) through
(iii) below.
i. The report shall contain the following information:
a) Company name and address where the engine is located.
b) Date of the report and beginning and ending dates of the reporting period.
c) Engine site rating and model year.
d) Latitude and longitude of the engine in decimal degrees reported to the fifth decimal
place.
e) Hours spent for operation for the purposes specified in Condition II.B.43.c(3)(a) (40 CFR
60.4211(f)(3)(i)), including the date, start time, and end time for engine operation for the
purposes specified in Condition II.B.43.c(3)(a) (40 CFR 60.4211(f)(3)(i)). The report
shall also identify the entity that dispatched the engine and the situation that necessitated
the dispatch of the engine.
ii. Annual reports for each calendar year shall be submitted no later than March 31 of each
calendar year.

141
iii. The annual report shall be submitted electronically using the subpart specific reporting form
in the Compliance and Emissions Data Reporting Interface (CEDRI) that is accessed through
EPA's Central Data Exchange (CDX) (www.epa.gov/cdx). However, if the reporting form
specific to this subpart is not available in CEDRI at the time that the report is due, the written
report shall be submitted to the Administrator at the appropriate address listed in 40 CFR 60.4.
(Origin: 40 CFR 60.4214(d))

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – Records of nonresectable hour meter readings confirm engines are used
only for emergency purposes and operate under the 100/50-hour limit per year. Hours of
operation, for each engine, are tracked in APIMS. Annual reports are submitted in CEDRI.

II.B.44 Conditions on NSPS CI ICE Non Fire Pump Engines (Unit #56).

II.B.44.a Condition:

For all affected emission units, except those that are modified, reconstructed, or removed from one
existing location and reinstalled at a new location, the permittee shall comply with paragraphs (a) through
(c).
(a) After December 31, 2008, the permittee shall not install affected emission units (excluding fire pump
engines) that do not meet the applicable requirements for 2007 model year engines.
(b) After December 31, 2009, the permittee shall not install affected emission units (excluding fire pump
engines) with a maximum engine power of less than 19 KW (25 HP) that do not meet the applicable
requirements for 2008 model year engines.
(c) The permittee shall not import affected emission units with a displacement of less than 30 liters per
cylinder that do not meet the applicable requirements specified in paragraphs (a) and (b) of this
condition after the dates specified in paragraphs (a) and (b) of this condition.
[Origin: 40 CFR 60 Subpart IIII]. [40 CFR 60.4208, 40 CFR 63 Subpart ZZZZ]

II.B.44.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.44.a.2 Recordkeeping:

The permittee shall keep records of the install date of each affected emission unit and the
applicable requirements under 40 CFR 60 Subpart IIII for the respective model year engine.
Records shall be maintained as described in Provision I.S.1 of this permit.

II.B.44.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB is aware that engines must meet the applicable model year emission
standards prior to installation. Engine records are tracked in APIMS.

II.B.44.b Condition:

142
Pre-2007 model year emergency affected emission units with a displacement of less than 10 liters per
cylinder that are not fire pump engines shall comply with the emission standards in Table 1 of 40 CFR 60
Subpart IIII. Pre-2007 model year emergency affected emission units with a displacement of greater than
or equal to 10 liters per cylinder and less than 30 liters per cylinder that are not fire pump engines shall
comply with the Tier 1 emission standards in 40 CFR part 1042, appendix I. Modified or reconstructed
affected emission units with a displacement of less than 10 liters per cylinder that are not fire pump
engines shall meet the emission standards in Table 1 of 40 CFR 60 Subpart IIII applicable to the model
year, maximum engine power, and displacement of the modified or reconstructed engine. Modified or
reconstructed affected emission units with a displacement of greater than or equal to 10 liters per cylinder
and less than 30 liters per cylinder that are not fire pump engines shall meet the Tier 1 emission standards
in 40 CFR part 1042, appendix I applicable to the model year, maximum engine power, and displacement
of the modified or reconstructed engine. If the permittee conducts performance tests in-use on stationary
CI ICE with a displacement of less than 30 liters per cylinder they shall meet the not-to-exceed (NTE)
standards as indicated in 40 CFR 60.4212. [Origin: 40 CFR 60 Subpart IIII]. [40 CFR 60.4205(a), 40
CFR 60.4205(e), 40 CFR 60.4205(f), 40 CFR 63 Subpart ZZZZ]

II.B.44.b.1 Monitoring:

The permittee shall demonstrate compliance according to one of the methods specified in
paragraphs (1) through (5) of this section.
(1) Purchasing an engine certified to emission standards for the same model year and maximum
engine power as described in 40 CFR parts 1039 and 1042, as applicable. The engine must be
installed and configured according to the manufacturer's specifications.
(2) Keeping records of performance test results for each pollutant for a test conducted on a
similar engine. The test must have been conducted using the same methods specified in 40
CFR 60 Subpart IIII and these methods must have been followed correctly.
(3) Keeping records of engine manufacturer data indicating compliance with the standards.
(4) Keeping records of control device vendor data indicating compliance with the standards.
(5) Conducting an initial performance test to demonstrate compliance with the emission
standards according to the requirements specified in 40 CFR 60.4212, as applicable.
(Origin: 40 CFR 60.4211(b))

For modified or reconstructed affected emission units that must comply with the emission
standards specified in 40 CFR 60.4205(f), the permittee shall demonstrate compliance by
purchasing, or otherwise owning or operating, an engine certified to the emission standards in 40
CFR 60.4205(f) or by conducting a performance test to demonstrate initial compliance with the
emission standards according to the requirements specified in 40 CFR 60.4212. The test shall be
conducted within 60 days after the engine commences operation after the modification or
reconstruction. [40 CFR 60.4211(e)].

II.B.44.b.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.44.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB only purchases engines that meet the EPA Tier certification
requirements (certified engines). Engine records are tracked in APIMS.

143

II.B.44.c Condition:

2007 model year and later emergency affected emission units with a displacement of less than 30 liters per
cylinder that are not fire pump engines shall comply with the emission standards for new nonroad CI ICE
in 40 CFR 60.4202, for all pollutants, for the same model year and maximum engine power for their 2007
model year and later emergency stationary CI ICE. Modified or reconstructed affected emission units shall
meet the emission standards for new nonroad CI ICE in 40 CFR 60.4202 applicable to the model year,
maximum engine power, and displacement of the modified or reconstructed engine. If the permittee
conducts performance tests in-use on emergency stationary CI ICE with a displacement of less than 30
liters per cylinder they shall meet the not-to-exceed (NTE) standards as indicated in 40 CFR 60.4212.
[Origin: 40 CFR 60 Subpart IIII]. [40 CFR 63 Subpart ZZZZ, 40 CFR 60.4205(b), 40 CFR 60.4205(e), 40
CFR 60.4205(f)]

II.B.44.c.1 Monitoring:

The permittee shall comply by purchasing an engine certified to the emission standards in 40 CFR
60.4205(b) for the same model year and maximum engine power. The engine must be installed
and configured according to the manufacturer's emission-related specifications, except as
permitted below. (Origin: 40 CFR 60.4211(c))

If the permittee does not install, configure, operate, and maintain affected emission units and
control devices according to the manufacturer's emission-related written instructions, or changes
emission-related settings in a way that is not permitted by the manufacturer, the permittee shall
demonstrate compliance as follows:
(a) For affected emission units with maximum engine power less than 100 HP:
i. Keep a maintenance plan and records of conducted maintenance to demonstrate
compliance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. If the permittee does not install and configure the engine and control device according to
the manufacturer's emission-related written instructions, or changes the emission-related
settings in a way that is not permitted by the manufacturer, the permittee shall conduct an
initial performance test to demonstrate compliance with the applicable emission standards
within 1 year of such action.
(b) For affected emission units greater than or equal to 100 HP and less than or equal to 500 HP:
i. Keep a maintenance plan and records of conducted maintenance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. Conduct an initial performance test to demonstrate compliance with the applicable
emission standards within 1 year of startup, or within 1 year after an engine and control
device is no longer installed, configured, operated, and maintained in accordance with the
manufacturer's emission-related written instructions, or within 1 year after changing
emission-related settings in a way that is not permitted by the manufacturer.
(c) For affected emission units greater than 500 HP:
i. Keep a maintenance plan and records of conducted maintenance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. Conduct an initial performance test to demonstrate compliance with the applicable
emission standards within 1 year of startup, or within 1 year after an engine and control
device is no longer installed, configured, operated, and maintained in accordance with the

144
manufacturer's emission-related written instructions, or within 1 year after changing
emission-related settings in a way that is not permitted by the manufacturer. The permittee
shall conduct subsequent performance testing every 8,760 hours of engine operation or 3
years, whichever comes first, thereafter to demonstrate compliance with the applicable
emission standards.
(Origin: 40 CFR 60.4211(g))

For modified or reconstructed affected emission units that must comply with the emission
standards specified in 40 CFR 60.4205(f), the permittee shall demonstrate compliance by
purchasing, or otherwise owning or operating, an engine certified to the emission standards in 40
CFR 60.4205(f) or by conducting a performance test to demonstrate initial compliance with the
emission standards according to the requirements specified in 40 CFR 60.4212. The test shall be
conducted within 60 days after the engine commences operation after the modification or
reconstruction. [40 CFR 60.4211(e)]

II.B.44.c.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.44.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB only purchases engines that meet the EPA Tier certification
requirements (certified engines). Engine records are tracked in APIMS. See status of
condition II.B.44.b.

II.B.44.d Condition:

2007 model year and later non-emergency affected emission units with a displacement of less than 30
liters per cylinder shall comply with the emission standards for new CI ICE in 40 CFR 60.4201 for their
2007 model year and later stationary CI ICE, as applicable. Modified or reconstructed affected emission
units shall meet the emission standards for new CI ICE in 40 CFR 60.4201 applicable to the model year,
maximum engine power, and displacement of the modified or reconstructed engine. If the permittee
conducts performance tests in-use on non-emergency stationary CI ICE with a displacement of less than
30 liters per cylinder they shall meet the not-to-exceed (NTE) standards as indicated in 40 CFR 60.4212.
[Origin: 40 CFR 60 Subpart IIII]. [40 CFR 63 Subpart ZZZZ, 40 CFR 60.4204(b), 40 CFR 60.4204(d),
40 CFR 60.4204(e)]

145
II.B.44.d.1 Monitoring:

The permittee shall comply by purchasing an engine certified to the emission standards in 40 CFR
60.4204(b) for the same model year and maximum engine power. The engine must be installed
and configured according to the manufacturer's emission-related specifications, except as
permitted below. (Origin: 40 CFR 60.4211(c))

If the permittee does not install, configure, operate, and maintain affected emission units and
control devices according to the manufacturer's emission-related written instructions, or changes
emission-related settings in a way that is not permitted by the manufacturer, the permittee shall
demonstrate compliance as follows:
(a) For affected emission units with maximum engine power less than 100 HP:
i. Keep a maintenance plan and records of conducted maintenance to demonstrate
compliance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. If the permittee does not install and configure the engine and control device according to
the manufacturer's emission-related written instructions, or changes the emission-related
settings in a way that is not permitted by the manufacturer, the permittee shall conduct an
initial performance test to demonstrate compliance with the applicable emission
standards within 1 year of such action.
(b) For affected emission units greater than or equal to 100 HP and less than or equal to 500 HP:
i. Keep a maintenance plan and records of conducted maintenance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. Conduct an initial performance test to demonstrate compliance with the applicable
emission standards within 1 year of startup, or within 1 year after an engine and control
device is no longer installed, configured, operated, and maintained in accordance with the
manufacturer's emission-related written instructions, or within 1 year after changing
emission-related settings in a way that is not permitted by the manufacturer.
(c) For affected emission units greater than 500 HP:
i. Keep a maintenance plan and records of conducted maintenance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. Conduct an initial performance test to demonstrate compliance with the applicable
emission standards within 1 year of startup, or within 1 year after an engine and control
device is no longer installed, configured, operated, and maintained in accordance with the
manufacturer's emission-related written instructions, or within 1 year after changing
emission-related settings in a way that is not permitted by the manufacturer. The
permittee shall conduct subsequent performance testing every 8,760 hours of engine
operation or 3 years, whichever comes first, thereafter to demonstrate compliance with
the applicable emission standards.
(Origin: 40 CFR 60.4211(g))

For modified or reconstructed affected emission units that must comply with the emission
standards specified in 40 CFR 60.4204(e), the permittee shall demonstrate compliance by
purchasing, or otherwise owning or operating, an engine certified to the emission standards in 40
CFR 60.4204(e) or by conducting a performance test to demonstrate initial compliance with the
emission standards according to the requirements specified in 40 CFR 60.4212. The test shall be
conducted within 60 days after the engine commences operation after the modification or
reconstruction. [40 CFR 60.4211(e)].

146
II.B.44.d.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.44.d.3 Reporting:

Reports shall be submitted as specified in Section I of this permit.

Status: N/A – There are no NSPS CI non-emergency engines currently operated on HAFB to date.

II.B.45 Conditions on NSPS CI ICE Emergency Fire Pump Engines (Unit #57).

II.B.45.a Condition:

Affected emission units with a displacement of less than 30 liters per cylinder shall comply with the
emission standards in Table 4 of 40 CFR 60 Subpart IIII, for all pollutants. Modified or reconstructed
affected emission units shall meet the emission standards in Table 4 of 40 CFR 60 Subpart IIII applicable
to the model year, maximum engine power, and displacement of the modified or reconstructed engine. If
the permittee conducts performance tests in-use on emergency stationary CI ICE with a displacement of
less than 30 liters per cylinder they shall meet the not-to-exceed (NTE) standards as indicated in 40 CFR
60.4212. [Origin: 40 CFR 60 Subpart IIII]. [40 CFR 63 Subpart ZZZZ, 40 CFR 60.4205(c), 40 CFR
60.4205(e), 40 CFR 60.4205(f)]

II.B.45.a.1 Monitoring:

For affected emission units that are manufactured prior to the model years in Table 3 of 40 CFR
60 Subpart IIII, the permittee shall demonstrate compliance according to one of the methods
specified in paragraphs (a) through (e) of this paragraph.
(a) Purchasing an engine certified to emission standards for the same model year and maximum
engine power as described in 40 CFR parts 1039 and 1042, as applicable. The engine must be
installed and configured according to the manufacturer's specifications.
(b) Keeping records of performance test results for each pollutant for a test conducted on a
similar engine. The test must have been conducted using the same methods specified in 40
CFR 60 Subpart IIII and these methods must have been followed correctly.
(c) Keeping records of engine manufacturer data indicating compliance with the standards.
(d) Keeping records of control device vendor data indicating compliance with the standards.
(e) Conducting an initial performance test to demonstrate compliance with the emission
standards according to the requirements specified in 40 CFR 60.4212, as applicable.
(Origin: 40 CFR 60.4211(b))

For affected emission units that are manufactured during or after the applicable model years for
fire pump engine power rating in Table 3 of 40 CFR 60 Subpart IIII, the permittee shall comply
by purchasing an engine certified to the emission standards in 40 CFR 60.4205(c) for the same
model year and maximum (or in the case of fire pumps, NFPA nameplate) engine power. The
engine must be installed and configured according to the manufacturer's emission-related
specifications, except as permitted below. (Origin: 40 CFR 60.4211(c))

If the permittee does not install, configure, operate, and maintain affected emission units and
control devices according to the manufacturer's emission-related written instructions, or changes
emission-related settings in a way that is not permitted by the manufacturer, the permittee shall
demonstrate compliance as follows:

147
(a) For affected emission units with maximum engine power less than 100 HP:
i. Keep a maintenance plan and records of conducted maintenance to demonstrate
compliance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. If the permittee does not install and configure the engine and control device according to
the manufacturer's emission-related written instructions, or changes the emission-related
settings in a way that is not permitted by the manufacturer, the permittee shall conduct an
initial performance test to demonstrate compliance with the applicable emission
standards within 1 year of such action.
(b) For affected emission units greater than or equal to 100 HP and less than or equal to 500 HP:
i. Keep a maintenance plan and records of conducted maintenance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. Conduct an initial performance test to demonstrate compliance with the applicable
emission standards within 1 year of startup, or within 1 year after an engine and control
device is no longer installed, configured, operated, and maintained in accordance with
the manufacturer's emission-related written instructions, or within 1 year after changing
emission-related settings in a way that is not permitted by the manufacturer.
(c) For affected emission units greater than 500 HP:
i. Keep a maintenance plan and records of conducted maintenance; and
ii. To the extent practicable, maintain and operate the engine in a manner consistent with
good air pollution control practice for minimizing emissions; and
iii. Conduct an initial performance test to demonstrate compliance with the applicable
emission standards within 1 year of startup, or within 1 year after an engine and control
device is no longer installed, configured, operated, and maintained in accordance with
the manufacturer's emission-related written instructions, or within 1 year after changing
emission-related settings in a way that is not permitted by the manufacturer. The
permittee shall conduct subsequent performance testing every 8,760 hours of engine
operation or 3 years, whichever comes first, thereafter to demonstrate compliance with
the applicable emission standards.
(Origin: 40 CFR 60.4211(g))

For modified or reconstructed affected emission units that must comply with the emission
standards specified in 40 CFR 60.4205(f), the permittee shall demonstrate compliance by
purchasing, or otherwise owning or operating, an engine certified to the emission standards in 40
CFR 60.4205(f) or by conducting a performance test to demonstrate initial compliance with the
emission standards according to the requirements specified in 40 CFR 60.4212. The test shall be
conducted within 60 days after the engine commences operation after the modification or
reconstruction. [40 CFR 60.4211(e)].

II.B.45.a.2 Recordkeeping:

Results of monitoring shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.45.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

148
Status: In compliance – HAFB only purchases NFPA certified fire pump engines that meet the EPA
Tier certification requirements. Engine records are tracked in APIMS.

II.B.46 Conditions on NSPS SI Emergency Internal Combustion Engines (Unit #58).

II.B.46.a Condition:

(a) For each affected emission unit where construction commenced (i.e., date the affected emission unit
is ordered by the Permittee) after June 12, 2006, with a maximum engine power:
(1) Less than or equal to 19 KW (25 HP) manufactured on or after July 1, 2008, the Permittee shall
comply with the emission standards in 40 CFR 60.4231(a) (origin 40 CFR 60.4233(a));
(2) Greater than 19 KW (25 HP) manufactured on or after January 1, 2009 that use gasoline, the
Permittee shall comply with the emission standards in 40 CFR 60.4231(b) (origin 40 CFR
60.4233(b));
(3) Greater than 19 KW (25 HP) manufactured on or after January 1, 2009 that are rich burn
engines that use LPG, the Permittee shall comply with the emission standards in 40 CFR
60.4231(c) (origin 40 CFR 60.4233(c));
(4) Greater than 19 KW (25 HP) and less than 75 KW (100 HP) (except gasoline and rich burn
engines that use LPG) the Permittee shall comply with the emission standards in Table 1 of 40
CFR 60 Subpart JJJJ (origin 40 CFR 60.4233(d)); or
(5) Greater than or equal to 75 KW (100 HP) (except gasoline and rich burn engines that use LPG),
the Permittee shall comply with the emission standards in Table 1 of 40 CFR 60 Subpart JJJJ.
Alternatively for engines manufactured prior to January 1, 2011 that were certified to the
certification emission standards in 40 CFR part 1048 applicable to engines that are not severe
duty engines, if such stationary SI ICE was certified to a carbon monoxide (CO) standard above
the standard in Table 1 40 CFR 60 Subpart JJJJ, the Permittee may meet the CO certification
(not field testing) standard for which the engine was certified. (origin 40 CFR 60.4233(e))
(b) For each affected emission unit that is modified or reconstructed after June 12, 2006 with a
maximum engine power:
(1) Less than or equal to 19 KW (25 HP), the Permittee shall comply with emission standards in 40
CFR 60.4231(a) for SI ICE. Engines with a date of manufacture prior to July 1, 2008 shall
comply with the emission standards specified in 40 CFR 60.4231(a) applicable to engines
manufactured on July 1, 2008. (origin 40 CFR 60.4233(f)(1));
(2) Greater than 19 KW (25 HP) that use gasoline, the Permittee shall comply with emission
standards in 40 CFR 60.4231(b) for SI ICE. Engines with a date of manufacture prior to
January 1, 2009 for emergency engines shall comply with the emission standards specified in 40
CFR 60.4231(b) applicable to engines manufactured on January 1, 2009 for emergency engines.
(origin 40 CFR 60.4233(f)(2));
(3) Greater than 19 KW (25 HP) that are rich burn engines that use LPG, the Permittee shall comply
with the same emission standards in 40 CFR 60.4231(c). Engines with a date of manufacture
prior to January 1, 2009 for emergency engines shall comply with the emission standards
specified in 40 CFR 60.4231(c) applicable to engines manufactured on January 1, 2009 for
emergency engines. (origin 40 CFR 60.4233(f)(3)); or
(4) Greater than 19 KW (25 HP) for SI natural gas and lean burn LPG, the Permittee shall comply
with the same emission standards as those specified in paragraph (a)(4) or (a)(5) of this
condition, except that engines greater than or equal to 130 HP shall meet a nitrogen oxides
(NOx) emission standard of 3.0 grams per HP-hour (g/HP-hr), a CO emission standard of 4.0
g/HP-hr, and a volatile organic compounds (VOC) emission standard of 1.0 g/HP-hr, or a NOx
emission standard of 250 ppmvd at 15 percent oxygen (O2), a CO emission standard 540 ppmvd
at 15 percent O2, and a VOC emission standard of 86 ppmvd at 15 percent O2, where the date of
manufacture of the engine is prior to January 1, 2009. (origin 40 CFR 60.4233(f)(4)).

149
(c) Deadline for importing or installing affected emission units produced in the previous model year
(1) After July 1, 2010, the Permittee shall not install affected emission units with a maximum
engine power of less than 500 HP that do not meet the applicable requirements in sections (a)
and (b) of this condition. (origin 40 CFR 60.4236(a))
(2) After July 1, 2009, the permittee shall not install affected emission units with a maximum
engine power of greater than or equal to 500 HP that do not meet the applicable requirements in
sections (a) and (b) of this condition, except that lean burn engines with a maximum engine
power greater than or equal to 500 HP and less than 1,350 HP that do not meet the applicable
requirements in sections (a) and (b) of this condition may not be installed after January 1, 2010.
(origin 40 CFR 60.4236(b))
(3) For affected emission units with a maximum engine power of greater than 19 KW (25 HP), the
Permittee shall not install engines that do not meet the applicable requirements in sections (a)
and (b) of this condition after January 1, 2011. (origin 40 CFR 60.4236(c))
(4) In addition to the requirements specified in 40 CFR 60.4231 and sections (a) and (b) of this
condition, it is prohibited to import affected emission units less than or equal to 19 KW (25 HP),
stationary rich burn LPG affected emission units, and stationary gasoline affected emission units
that do not meet the applicable requirements specified in paragraphs (1), (2), and (3) of section
(c) of this condition, after the date specified in paragraph (1), (2), and (3) of section (c) of this
condition. (origin 40 CFR 60.4236(d))
(5) The requirements of section (c) of this condition do not apply to affected emission units that
have been modified or reconstructed, and they do not apply to affected emission units that were
removed from one existing location and reinstalled at a new location. (origin 40 CFR
60.4236(e))
(d) The Permittee shall operate and maintain affected emission units that achieve the emission standards
as required in this condition over the entire life of the engine (origin 40 CFR 60.4234)
(e) The air-to-fuel ratio (AFR) controller, if used, shall be maintained and operated appropriately by the
Permittee in order to ensure proper operation of affected emission units and control device to
minimize emissions at all times. (origin 40 CFR 60.4243(g))
[Origin: 40 CFR 60 Subpart JJJJ]. [40 CFR 63 Subpart ZZZZ, 40 CFR 60.4233, 40 CFR 60.4234, 40
CFR 60.4236, 40 CFR 60.4243]

II.B.46.a.1 Monitoring:

(a) For affected emission units subject to (a)(1) through (3) of condition II.B.46.a, the Permittee
shall comply by purchasing an engine certified to the emission standards in 40 CFR
60.4231(a) through (c), as applicable, for the same engine class and maximum engine power.
In addition, the Permittee shall meet one of the requirements specified in (a)(1) and (2) of
this section.
(1) If the Permittee operates and maintains the certified stationary SI internal combustion
engine and control device according to the manufacturer's emission-related written
instructions, the Permittee shall keep records of conducted maintenance to demonstrate
compliance, but no performance testing is required for the Permittee. The Permittee
shall also meet the requirements as specified in 40 CFR part 1068, subparts A through
D, as they apply. If the Permittee adjusts engine settings according to and consistent
with the manufacturer's instructions, the affected emission unit will not be considered
out of compliance.
(2) If the Permittee does not operate and maintain the certified stationary SI internal
combustion engine and control device according to the manufacturer's emission-related
written instructions, the engine will be considered a non-certified engine, and the
Permittee shall demonstrate compliance according to (a)(2)(i) through (iii) of this
section, as appropriate.

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(i) If the affected emission unit is less than 100 HP, the Permittee shall keep a
maintenance plan and records of conducted maintenance to demonstrate
compliance and shall, to the extent practicable, maintain and operate the engine in
a manner consistent with good air pollution control practice for minimizing
emissions, but no performance testing is required for the Permittee.
(ii) If the affected emission unit is greater than or equal to 100 HP and less than or
equal to 500 HP, the Permittee shall keep a maintenance plan and records of
conducted maintenance and shall, to the extent practicable, maintain and operate
the engine in a manner consistent with good air pollution control practice for
minimizing emissions. In addition, the Permittee shall conduct an initial
performance test within 1 year of engine startup to demonstrate compliance.
(iii) If the affected emission unit is greater than 500 HP, the Permittee shall keep a
maintenance plan and records of conducted maintenance and shall, to the extent
practicable, maintain and operate the engine in a manner consistent with good air
pollution control practice for minimizing emissions. In addition, the Permittee
shall conduct an initial performance test within 1 year of engine startup and
conduct subsequent performance testing every 8,760 hours or 3 years, whichever
comes first, thereafter to demonstrate compliance.
(Origin: 40 CFR 60.4243(a))
(b) For affected emission units subject to (a)(4) or (5) of condition II.B.46.a, the Permittee shall
demonstrate compliance according to one of the methods specified in paragraphs (b)(1) and
(2) of this section.
(1) Purchasing an engine certified according to procedures specified in this condition, for
the same model year and demonstrating compliance according to one of the methods
specified in paragraph (a) of this section.
(2) Purchasing a non-certified engine and demonstrating compliance with the emission
standards specified in (a)(4) or (5) of this condition and according to the requirements
specified in 40 CFR 60.4244, as applicable, and according to paragraphs (b)(2)(i) and
(ii) of this section.
(i) If the affected emission unit is greater than 25 HP and less than or equal to 500
HP, the Permittee shall keep a maintenance plan and records of conducted
maintenance and shall, to the extent practicable, maintain and operate the engine in
a manner consistent with good air pollution control practice for minimizing
emissions. In addition, the Permittee shall conduct an initial performance test to
demonstrate compliance.
(ii) If the affected emission unit is greater than 500 HP, the Permittee shall keep a
maintenance plan and records of conducted maintenance and shall, to the extent
practicable, maintain and operate the engine in a manner consistent with good air
pollution control practice for minimizing emissions. In addition, the Permittee
shall conduct an initial performance test and conduct subsequent performance
testing every 8,760 hours or 3 years, whichever comes first, thereafter to
demonstrate compliance.
(Origin: 40 CFR 60.4243(b))
(c) For affected emission units subject to (b) of condition II.B.46.a:
(1) The Permittee shall demonstrate compliance according to paragraph (b)(2)(i) or (ii) of
this section, except that if the Permittee complies according to paragraph (b)(2)(i) of
this section, the Permittee demonstrates that the non-certified engine complies with the
emission standards specified in section (b) of this condition. (Origin: 40 CFR
60.4243(c))
(2) For modified or reconstructed affected emission units the permittee shall demonstrate
compliance according to one of the methods specified in paragraphs (i) or (ii) below.

151
(i) Purchasing, or otherwise owning or operating, an engine certified to the emission
standards in (b) of condition II.B.46.a as applicable, or
(ii) Conducting a performance test to demonstrate initial compliance with the emission
standards according to the requirements specified in 40 CFR 60.4244. The test
shall be conducted within 60 days after the engine commences operation after the
modification or reconstruction.
(Origin: 40 CFR 60.4243(i))
(d) For affected emission units less than or equal to 500 HP and the Permittee purchases a non-
certified engine or the Permittee does not operate and maintain the certified affected
emission unit and control device according to the manufacturer's written emission-related
instructions, the Permittee is required to perform initial performance testing as indicated in
this section, but the Permittee is not required to conduct subsequent performance testing
unless the stationary engine undergoes rebuild, major repair or maintenance. Engine
rebuilding means to overhaul an engine or to otherwise perform extensive service on the
engine (or on a portion of the engine or engine system). For the purpose of this paragraph
(d), perform extensive service means to disassemble the engine (or portion of the engine or
engine system), inspect and/or replace many of the parts, and reassemble the engine (or
portion of the engine or engine system) in such a manner that significantly increases the
service life of the resultant engine. (Origin: 40 CFR 60.4243(f))
(e) The Permittee shall conduct performance tests in accordance with the procedures in 40 CFR
60.4244(a) through (f). (Origin: 40 CFR 60.4244)
(f) Permittee of stationary SI ICE that are required to meet standards that reference 40 CFR
1048.101 shall, if testing their engines in use, meet the standards in that section applicable to
field testing, except as indicated in paragraph (a)(5) of this condition. (Origin: 40 CFR
60.4233(h)).

II.B.46.a.2 Recordkeeping:

(a) For the affected emission unit, the Permittee shall keep records of the information in
paragraphs (a)(1) through (4) of this section.
(1) All notifications submitted to comply with this condition and all documentation
supporting any notification.
(2) Maintenance conducted on each affected emission unit.
(3) If the affected emission unit is a certified engine, documentation from the manufacturer
that the affected emission unit is certified to meet the emission standards and
information as required in 40 CFR parts 1048, 1054, and 1060, as applicable.
(4) If the affected emission unit is not a certified engine or is a certified engine operating in
a non-certified manner and subject to section (a)(2) of monitoring, documentation that
the engine meets the emission standards.
(Origin: 40 CFR 60.4245(a))
(b) The permittee shall keep records of the install date of each affected emission unit and the
applicable requirements under 40 CFR 60 Subpart JJJJ for the respective model year engine.

Records and results of monitoring shall be maintained in accordance with Provision I.S.1 of this
permit.

II.B.46.a.3 Reporting:

In addition to the reporting requirements specified in Section I of this permit, the permittee shall
submit the following notifications and reports.

152
(a) For affected emission units greater than or equal to 500 HP that have not been certified by an
engine manufacturer to meet the emission standards in 40 CFR 60.4231, the Permittee shall
submit an initial notification as required in 40 CFR 60.7(a)(1). The notification shall include
the information in paragraphs (a)(1) through (5) of this section.
(1) Name and address of the Permittee;
(2) The address of the affected emission unit;
(3) Engine information including make, model, engine family, serial number, model year,
maximum engine power, and engine displacement;
(4) Emission control equipment; and
(5) Fuel used.
(Origin: 40 CFR 60.4245(c))
(b) For affected emission units that are subject to performance testing, the Permittee shall submit
a copy of each performance test as conducted in 40 CFR 60.4244 within 60 days after the test
has been completed. (Origin: 40 CFR 60.4245(d)).

Status: N/A – There are no NSPS spark ignition (SI) emergency engines currently operated on
HAFB with these specifications, to date.

II.B.46.b Condition:

The permittee shall operate the emergency affected emission unit according to the requirements in
paragraphs (1) through (3). In order for the engine to be considered an emergency stationary ICE under
40 CFR 60 Subpart JJJJ, any operation other than emergency operation, maintenance and testing, and
operation in non-emergency situations for 50 hours per year, as described in (1) through (3), is prohibited.
If the engine is not operated in accordance with paragraphs (1) through (3), it will not be considered an
emergency engine and shall meet all requirements for non-emergency engines.
(1) There is no time limit on the use of emergency stationary ICE in emergency situations.
(2) Emergency stationary ICE may be operated for the purposes specified in paragraph (a) for a
maximum of 100 hours per calendar year. Any operation for non-emergency situations as allowed by
paragraph (3) counts as part of the 100 hours per calendar year allowed by this paragraph (2).
(a) Emergency stationary ICE may be operated for maintenance checks and readiness testing,
provided that the tests are recommended by federal, state or local government, the manufacturer,
the vendor, the regional transmission organization or equivalent balancing authority and
transmission operator, or the insurance company associated with the engine. A petition for
approval of additional hours to be used for maintenance checks and readiness testing is not
required if the permittee maintains records indicating that federal, state, or local standards
require maintenance and testing of emergency ICE beyond 100 hours per calendar year.
(3) Emergency engines may operate up to 50 hours per calendar year in non-emergency situations. The
50 hours of operation in non-emergency situations are counted as part of the 100 hours per calendar
year for maintenance and testing provided in paragraph (2). Except as provided in paragraph (3)(a),
the 50 hours per calendar year for non-emergency situations cannot be used for peak shaving or non-
emergency demand response, or to generate income for the permittee to an electric grid or otherwise
supply power as part of a financial arrangement with another entity.
(a) The 50 hours per year for non-emergency situations can be used to supply power as part of a
financial arrangement with another entity if all of the following conditions are met:
(i) The engine is dispatched by the local balancing authority or local transmission and
distribution system operator;
(ii) The dispatch is intended to mitigate local transmission and/or distribution limitations so as
to avert potential voltage collapse or line overloads that could lead to the interruption of
power supply in a local area or region.

153
(iii) The dispatch follows reliability, emergency operation or similar protocols that follow
specific NERC, regional, state, public utility commission or local standards or guidelines.
(iv) The power is provided only to the permittee itself or to support the local transmission and
distribution system.
(v) The permittee identifies and records the entity that dispatches the engine and the specific
NERC, regional, state, public utility commission or local standards or guidelines that are
being followed for dispatching the engine. The local balancing authority or local
transmission and distribution system operator may keep these records on behalf of the
permittee.

The Permittee may operate affected natural gas fired emission units using propane for a maximum of 100
hours per year as an alternative fuel solely during emergency operations, but the Permittee shall keep
records of such use. If propane is used for more than 100 hours per year in an affected emission unit that is
not certified to the emission standards when using propane, the Permittee is required to conduct a
performance test to demonstrate compliance with the emission standards of 40 CFR 60.4233.
[Origin: 40 CFR 60 Subpart JJJJ]. [40 CFR 60.4243(d), 40 CFR 60.4243(e), 40 CFR 63 Subpart ZZZZ]

II.B.46.b.1 Monitoring:

(a) Starting on July 1, 2010, for each affected emission unit that is greater than or equal to 500
HP that was built on or after July 1, 2010, that does not meet the standards applicable to non-
emergency engines, the Permittee shall install a non-resettable hour meter. (Origin: 40 CFR
60.4237(a))
(b) Starting on January 1, 2011, for each affected emission unit that is greater than or equal to
130 HP and less than 500 HP that was built on or after January 1, 2011, that does not meet
the standards applicable to non-emergency engines, the Permittee shall install a non-
resettable hour meter. (Origin: 40 CFR 60.4237(b))
(c) For affected emission units less than 130 HP, built on or after July 1, 2008, and does not meet
the standards applicable to non-emergency engines, the Permittee shall install a non-
resettable hour meter upon startup of the affected emission unit. (Origin: 40 CFR
60.4237(c)).

II.B.46.b.2 Recordkeeping:

For each affected emission unit:
(a) greater than or equal to 500 HP manufactured on or after July 1, 2010, that does not meet the
standards applicable to non-emergency engines, the Permittee shall keep records of the hours
of operation of the affected emission unit that is recorded through the non-resettable hour
meter; or
(b) greater than or equal to 130 HP and less than 500 HP manufactured on or after July 1, 2011
that does not meet the standards applicable to non-emergency engines, the Permittee shall
keep records of the hours of operation of the affected emission unit that is recorded through
the non-resettable hour meter; or
(c) greater than 25 HP and less than 130 HP manufactured on or after July 1, 2008, that does not
meet the standards applicable to non-emergency engines, the Permittee shall keep records of
the hours of operation of the affected emission unit that is recorded through the non-
resettable hour meter.
The Permittee shall document how many hours are spent for emergency operation, including what
classified the operation as emergency and how many hours are spent for non-emergency
operation.

154
(Origin: 40 CFR 60.4245(b))

Records of each affected emission unit shall be kept on a monthly basis in an operation and
maintenance log. Records shall distinguish between maintenance-related hours and emergency
use-related hours. If additional hours are to be used for maintenance checks and readiness testing,
the permittee shall maintain records indicating that federal, state, or local standards require
maintenance and testing of emergency ICE beyond 100 hours per calendar year. (Origin: 40 CFR
60.4243(d))

Records shall be maintained as described in Provision I.S.1 of this permit.

II.B.46.b.3 Reporting:

For each affected emergency emission unit with a maximum engine power more than 100 HP that
operates for the purposes specified in Condition II.B.46.b(3)(a) (40 CFR 60.4243(d)(3)(i)), the
permittee shall submit an annual report according to the requirements in paragraphs (i) through
(iii) below.
i. The report shall contain the following information:
a) Company name and address where the engine is located.
b) Date of the report and beginning and ending dates of the reporting period.
c) Engine site rating and model year.
d) Latitude and longitude of the engine in decimal degrees reported to the fifth decimal
place.
e) Hours spent for operation for the purposes specified in Condition II.B.46.b(3)(a) (40 CFR
60.4243(d)(3)(i)), including the date, start time, and end time for engine operation for the
purposes specified in Condition II.B.46.b(3)(a) (40 CFR 60.4243(d)(3)(i)). The report
shall also identify the entity that dispatched the engine and the situation that necessitated
the dispatch of the engine.
ii. Annual reports for each calendar year shall be submitted no later than March 31 of the
following calendar year.
iii. The annual report shall be submitted electronically using the subpart specific reporting form
in the Compliance and Emissions Data Reporting Interface (CEDRI) that is accessed through
EPA's Central Data Exchange (CDX) (www.epa.gov/cdx). However, if the reporting form
specific to this subpart is not available in CEDRI at the time that the report is due, the written
report shall be submitted to the Administrator at the appropriate address listed in 40 CFR 60.4.
(Origin: 40 CFR 60.4245(e))

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: N/A – There are no NSPS SI emergency engines currently operated on HAFB with these
specifications, to date. See status of condition II.B.46.a.

II.B.46.c Condition:

The permittee shall use gasoline that meets the per gallon sulfur limit in 40 CFR 1090.205. [Origin: 40
CFR 60 Subpart JJJJ]. [40 CFR 60.4235, 40 CFR 63 Subpart ZZZZ]

II.B.46.c.1 Monitoring:

For each delivery of gasoline, the permittee shall either:

155
(1) Determine the fuel sulfur content expressed as ppm; or
(2) Inspect the fuel sulfur content expressed as ppm determined by the vendor using methods of
the ASTM; or
(3) Inspect documentation provided by the vendor that indirectly demonstrates compliance with
this provision.

II.B.46.c.2 Recordkeeping:

Records shall be maintained as described in Provision I.S.1 of this permit.

II.B.46.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – There are no NSPS SI emergency engines currently operated on HAFB with these
specifications, to date. See status of condition II.B.46.a. and II.B.46.b.

II.B.47 Conditions on NESHAP Existing CI Emergency RICE <= 500 Hp (Unit #60).

II.B.47.a Condition:

The permittee shall comply with the following operating limitations and other requirements at all times for
each emergency affected emission unit:
1. The permittee shall operate the affected emission unit according to the requirements in paragraphs 1.a
through 1.c. In order for the engine to be considered an emergency stationary RICE under 40 CFR 63
Subpart ZZZZ, any operation other than emergency operation, maintenance and testing, and operation
in non-emergency situations for 50 hours per year, as described in 1.a through 1.c, is prohibited. If the
engine is not operated in accordance with paragraphs 1.a through 1.c, it will not be considered an
emergency engine and shall meet all requirements for non-emergency engines.
a. There is no time limit on the use of emergency stationary RICE in emergency situations.
b. Emergency stationary RICE may be operated for any combination of the purposes specified in
paragraph (i) for a maximum of 100 hours per calendar year. Any operation for non-emergency
situations as allowed by paragraph 1.c counts as part of the 100 hours per calendar year allowed by
this paragraph 1.b.
(i) Emergency stationary RICE may be operated for maintenance checks and readiness testing,
provided that the tests are recommended by federal, state or local government, the
manufacturer, the vendor, the regional transmission organization or equivalent balancing
authority and transmission operator, or the insurance company associated with the engine. A
petition for approval of additional hours to be used for maintenance checks and readiness
testing is not required if the permittee maintains records indicating that federal, state, or local
standards require maintenance and testing of emergency RICE beyond 100 hours per calendar
year.
c. The permittee may operate the affected emission unit up to 50 hours per calendar year in non-
emergency situations. The 50 hours of operation in non-emergency situations are counted as part
of the 100 hours per calendar year for maintenance and testing provided in paragraph 1.b (40 CFR
63.6640(f)(2)). The 50 hours per year for non-emergency situations cannot be used for peak
shaving or non-emergency demand response, or to generate income for the permittee to supply
power to an electric grid or otherwise supply power as part of a financial arrangement with another
entity.
2. The permittee shall meet the following requirements at all times, except during periods of startup:

156
a. Change oil and filter every 500 hours of operation or annually, whichever comes first;
b. Inspect air cleaner every 1,000 hours of operation or annually, whichever comes first, and replace
as necessary;
c. Inspect all hoses and belts every 500 hours of operation or annually, whichever comes first, and
replace as necessary.
During periods of startup, the permittee shall minimize the engine's time spent at idle and minimize
the engine's startup time to a period needed for appropriate and safe loading of the engine, not to
exceed 30 minutes, after which time the non-startup emission limitations apply.
3. The permittee shall comply with the applicable general provisions in 40 CFR 63.1-15 as identified in
Table 8 of 40 CFR 63 Subpart ZZZZ.
[Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6595(a)(1), 40 CFR 63.6602, 40 CFR 63.6605(a), 40
CFR 63.6625(h), 40 CFR 63.6640(f), 40 CFR 63.6665, 40 CFR 63 Subpart ZZZZ Table 2c, 40 CFR 63
Subpart ZZZZ Table 8]

II.B.47.a.1 Monitoring:

The permittee shall install a non-resettable hour meter if one is not already installed. [40 CFR
63.6625(f)]

If an emergency engine is operating during an emergency and it is not possible to shut down the
engine in order to perform the work practice requirements on the required schedule, or if
performing the work practice on the required schedule would otherwise pose an unacceptable risk
under federal, state, or local law, the work practice can be delayed until the emergency is over or
the unacceptable risk under federal, state, or local law has abated. The work practice shall be
performed as soon as practicable after the emergency has ended or the unacceptable risk under
federal, state, or local law has abated. [40 CFR 63 Subpart ZZZZ Table 2c Footnote 1]

The permittee shall demonstrate continuous compliance by operating and maintaining the
stationary RICE and after-treatment control device (if any) according to the manufacturer's
emission-related written operation and maintenance instructions or develop and follow their own
maintenance plan which must provide to the extent practicable for the maintenance and operation
of the engine in a manner consistent with good air pollution control practice for minimizing
emissions. [40 CFR 63.6625(e), 40 CFR 63.6640(a), 40 CFR 63 Subpart ZZZZ Table 6]

The permittee has the option of utilizing an oil analysis program in order to extend the specified
oil change requirement in accordance with 40 CFR 63.6625(i).

The permittee shall comply with the applicable general provisions in 40 CFR 63.1-15 as identified
in Table 8 of 40 CFR 63 Subpart ZZZZ. [40 CFR 63.6665].

II.B.47.a.2 Recordkeeping:

The permittee shall keep the records described in 40 CFR 63.6655(a):
(a) A copy of each notification and report submitted to comply with 40 CFR 63 Subpart ZZZZ,
including all documentation supporting any Initial Notification or Notification of Compliance
Status submitted, according to the requirement in 40 CFR 63.10(b)(2)(xiv).
(b) Records of the occurrence and duration of each malfunction of operation (i.e., process
equipment) or the air pollution control and monitoring equipment.
(c) Records of all required maintenance performed on the air pollution control and monitoring
equipment.

157

For each affected emission unit that does not meet the standards applicable to non-emergency
engines, the permittee shall keep records of the hours of operation of the engine that are recorded
through the non-resettable hour meter. The permittee shall document how many hours are spent
for emergency operation, including what classified the operation as emergency and how many
hours are spent for non-emergency operation. [40 CFR 63.6655(f)]

If additional hours are to be used for maintenance checks and readiness testing, the permittee shall
maintain records indicating that federal, state, or local standards require maintenance and testing
of emergency RICE beyond 100 hours per calendar year. [40 CFR 63.6640(f)(2)(i)]

The permittee shall keep records that demonstrate continuous compliance with each applicable
operating limitation [including, but not limited to, the manufacturer's emission-related operation
and maintenance instructions or the permittee-developed maintenance plan]. [40 CFR 63.6655(d),
40 CFR 63 Subpart ZZZZ Table 6]

Records of the maintenance conducted shall be kept in order to demonstrate that the permittee
operated and maintained the affected emission unit and after-treatment control device (if any)
according to their own maintenance plan. [40 CFR 63.6655(e)]

The permittee shall comply with the applicable general provisions in 40 CFR 63.1-15 as identified
in Table 8 of 40 CFR 63 Subpart ZZZZ. [40 CFR 63.6665]

Records shall be maintained in accordance with 40 CFR 63.6660 and Provision I.S.1 of this
permit.

II.B.47.a.3 Reporting:

The permittee shall report any failure to perform the work practice on the schedule required and
the federal, state or local law under which the risk was deemed unacceptable. [40 CFR 63 Subpart
ZZZZ Table 2c Footnote 1]

The permittee shall comply with the applicable general provisions in 40 CFR 63.1-15 as identified
in 40 CFR 63 Subpart ZZZZ Table 8. [40 CFR 63.6665] The permittee shall also report each
instance in which it did not meet the applicable requirements in Table 8. [40 CFR 63.6640(e)]

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – Records of nonresectable hour meter reading confirm engines are used only
for emergency purposes. Hours of operation, for each engine, are tracked in APIMS. HAFB
uses oil analysis on a few of its engines.

II.B.47.b Condition:

At all times the permittee shall operate and maintain any affected source, including associated air
pollution control equipment and monitoring equipment, in a manner consistent with safety and good air
pollution control practices for minimizing emissions. The general duty to minimize emissions does not
require the permittee to make any further efforts to reduce emissions if levels required by this standard
have been achieved. Determination of whether such operation and maintenance procedures are being used
will be based on information available to the Director which may include, but is not limited to, monitoring

158
results, review of operation and maintenance procedures, review of operation and maintenance records,
and inspection of the source. [Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6595(a)(1), 40 CFR
63.6605(b)]

II.B.47.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.47.b.2 Recordkeeping:

The permittee shall keep records of actions taken during periods of malfunction to minimize
emissions in accordance with 40 CFR 63.6605(b), including corrective actions to restore
malfunctioning process and air pollution control and monitoring equipment to its normal or usual
manner of operation. [40 CFR 63.6655(a)] The permittee shall document activities performed to
assure proper operation and maintenance. Records shall be maintained in accordance with 40
CFR 63.6660 and Provision I.S.1 of this permit.

II.B.47.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Maintenance is conducted and maintenance records are maintained. Engine
Inspection Checklists are entered and tracked in APIMS.

The Power Pro Max Shop on HAFB complies with the Department of Air Force Manual
(DAFMAN 32-1062), when it come to the maintenance of larger engines.

II.B.48 Conditions on NESHAP New CI Emergency RICE >500 Hp (Unit #61)

II.B.48.a Condition:

The permittee shall submit an Initial Notification as required in 40 CFR 63.6645(f) for each new or
reconstructed emergency stationary RICE. [Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6590(b)(1)]

II.B.48.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.48.a.2 Recordkeeping:

The permittee shall keep a copy of each notification in accordance with 40 CFR 63.6660 and
Provision I.S.1 of this permit.

II.B.48.a.3 Reporting:

For each affected emission unit, the permittee shall submit an Initial Notification containing the
information in 40 CFR 63.9(b)(2)(i) through (v), and a statement that the stationary RICE has no
additional requirements and that explains the basis of the exclusion. There are no additional
reporting requirements for this provision except those specified in Section I of this permit.

159
Status: In compliance – Initial Notices and even Notices of Intent (NOIs) are submitted when
applicable. Flexibility Provision Notices are submitted when engines less than 500 Hp.
Initial Notices are submitted when engines are greater than 500 Hp. The last Initial Notice
was submitted on September 11, 2024.

II.B.48.b Condition:

The permittee shall operate the affected emission unit according to the requirements in paragraphs (i)
through (iii). In order for the engine to be considered an emergency stationary RICE under 40 CFR 63
Subpart ZZZZ, any operation other than emergency operation, maintenance and testing, and operation in
non-emergency situations for 50 hours per year, as described in (i) through (iii), is prohibited. If the
engine is not operated in accordance with paragraphs (i) through (iii), it will not be considered an
emergency engine and shall meet all requirements for non-emergency engines.
(i) There is no time limit on the use of emergency stationary RICE in emergency situations.
(ii) Emergency stationary RICE may be operated for any combination of the purposes specified in
paragraph (a) for a maximum of 100 hours per calendar year. Any operation for non-emergency
situations as allowed by paragraph (iii) counts as part of the 100 hours per calendar year allowed by
this paragraph (ii).
(a) Emergency stationary RICE may be operated for maintenance checks and readiness testing,
provided that the tests are recommended by federal, state or local government, the manufacturer,
the vendor, the regional transmission organization or equivalent balancing authority and
transmission operator, or the insurance company associated with the engine. A petition for
approval of additional hours to be used for maintenance checks and readiness testing is not
required if the permittee maintains records indicating that federal, state, or local standards
require maintenance and testing of emergency RICE beyond 100 hours per calendar year.
(iii) The permittee may operate the affected emission unit up to 50 hours per calendar year in non-
emergency situations. The 50 hours of operation in non-emergency situations are counted as part of
the 100 hours per calendar year for maintenance and testing provided in paragraph (ii) (40 CFR
63.6640(f)(2)). The 50 hours per year for non-emergency situations cannot be used for peak shaving
or non-emergency demand response, or to generate income for the permittee to supply power to an
electric grid or otherwise supply power as part of a financial arrangement with another entity.
[Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6640(f)]

II.B.48.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.48.b.2 Recordkeeping:

The permittee shall keep a copy of each notification and report submitted to comply with 40 CFR
63 Subpart ZZZZ, including all documentation supporting any Initial Notification or Notification
of Compliance Status submitted, according to the requirement in 40 CFR 63.10(b)(2)(xiv). [40
CFR 63.6655(a)]

If additional hours are to be used for maintenance checks and readiness testing, the permittee shall
maintain records indicating that federal, state, or local standards require maintenance and testing
of emergency RICE beyond 100 hours per calendar year. [40 CFR 63.6640(f)(2)(i)]

Records shall be maintained in accordance with 40 CFR 63.6660 and Provision I.S.1 of this
permit.

160
II.B.48.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Records of nonresectable hour meter reading confirm engines are used only
for emergency purposes. Hours of operation, for each engine, are tracked in APIMS. HAFB
uses oil analysis on a few of its engines.

II.B.48.c Condition:

At all times the permittee shall operate and maintain any affected source, including associated air
pollution control equipment and monitoring equipment, in a manner consistent with safety and good air
pollution control practices for minimizing emissions. The general duty to minimize emissions does not
require the permittee to make any further efforts to reduce emissions if levels required by this standard
have been achieved. Determination of whether such operation and maintenance procedures are being used
will be based on information available to the Director which may include, but is not limited to, monitoring
results, review of operation and maintenance procedures, review of operation and maintenance records,
and inspection of the source. [Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6605(b)]

II.B.48.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.48.c.2 Recordkeeping:

The permittee shall keep records of actions taken during periods of malfunction to minimize
emissions in accordance with 40 CFR 63.6605(b), including corrective actions to restore
malfunctioning process and air pollution control and monitoring equipment to its normal or usual
manner of operation. [40 CFR 63.6655(a)] The permittee shall document activities performed to
assure proper operation and maintenance. Records shall be maintained in accordance with 40
CFR 63.6660 and Provision I.S.1 of this permit.

II.B.48.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Maintenance is conducted and maintenance records are maintained. Engine
Inspection Checklists are entered and tracked in APIMS.

II.B.49 Conditions on NESHAP New SI Emergency RICE >500 Hp (Unit #62)

II.B.49.a Condition:

The permittee shall submit an Initial Notification as required in 40 CFR 63.6645(f) for each new or
reconstructed emergency stationary RICE. [Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6590(b)(1)]

II.B.49.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

161

II.B.49.a.2 Recordkeeping:

The permittee shall keep a copy of each notification in accordance with 40 CFR 63.6660 and
Provision I.S.1 of this permit.

II.B.49.a.3 Reporting:

For each affected emission unit, the permittee shall submit an Initial Notification containing the
information in 40 CFR 63.9(b)(2)(i) through (v), and a statement that the stationary RICE has no
additional requirements and that explains the basis of the exclusion. There are no additional
reporting requirements for this provision except those specified in Section I of this permit.

Status: N/A – There are no NESHAP SI emergency engines currently operated on HAFB.

II.B.49.b Condition:

The permittee shall operate the affected emission unit according to the requirements in paragraphs (i)
through (iii). In order for the engine to be considered an emergency stationary RICE under 40 CFR 63
Subpart ZZZZ, any operation other than emergency operation, maintenance and testing, and operation in
non-emergency situations for 50 hours per year, as described in (i) through (iii), is prohibited. If the
engine is not operated in accordance with paragraphs (i) through (iii), it will not be considered an
emergency engine and shall meet all requirements for non-emergency engines.
(i) There is no time limit on the use of emergency stationary RICE in emergency situations.
(ii) Emergency stationary RICE may be operated for any combination of the purposes specified in
paragraph (a) for a maximum of 100 hours per calendar year. Any operation for non-emergency
situations as allowed by paragraph (iii) counts as part of the 100 hours per calendar year allowed by
this paragraph (ii).
(a) Emergency stationary RICE may be operated for maintenance checks and readiness testing,
provided that the tests are recommended by federal, state or local government, the manufacturer,
the vendor, the regional transmission organization or equivalent balancing authority and
transmission operator, or the insurance company associated with the engine. A petition for
approval of additional hours to be used for maintenance checks and readiness testing is not
required if the permittee maintains records indicating that federal, state, or local standards
require maintenance and testing of emergency RICE beyond 100 hours per calendar year.
(iii) The permittee may operate the affected emission unit up to 50 hours per calendar year in non-
emergency situations. The 50 hours of operation in non-emergency situations are counted as part of
the 100 hours per calendar year for maintenance and testing provided in paragraph (ii) (40 CFR
63.6640(f)(2)). The 50 hours per year for non-emergency situations cannot be used for peak shaving
or non-emergency demand response, or to generate income for the permittee to supply power to an
electric grid or otherwise supply power as part of a financial arrangement with another entity.
[Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6640(f)]

II.B.49.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.49.b.2 Recordkeeping:

The permittee shall keep a copy of each notification and report submitted to comply with 40 CFR
63 Subpart ZZZZ, including all documentation supporting any Initial Notification or Notification

162
of Compliance Status submitted, according to the requirement in 40 CFR 63.10(b)(2)(xiv). [40
CFR 63.6655(a)]

If additional hours are to be used for maintenance checks and readiness testing, the permittee shall
maintain records indicating that federal, state, or local standards require maintenance and testing
of emergency RICE beyond 100 hours per calendar year. [40 CFR 63.6640(f)(2)(i)]

Records shall be maintained in accordance with 40 CFR 63.6660 and Provision I.S.1 of this
permit.

II.B.49.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – There are no NESHAP SI emergency engines currently operated on HAFB.
See status of condition II.B.49.a.

II.B.49.c Condition:

At all times the permittee shall operate and maintain any affected source, including associated air
pollution control equipment and monitoring equipment, in a manner consistent with safety and good air
pollution control practices for minimizing emissions. The general duty to minimize emissions does not
require the permittee to make any further efforts to reduce emissions if levels required by this standard
have been achieved. Determination of whether such operation and maintenance procedures are being used
will be based on information available to the Director which may include, but is not limited to, monitoring
results, review of operation and maintenance procedures, review of operation and maintenance records,
and inspection of the source. [Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6605(b)]

II.B.49.c.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.49.c.2 Recordkeeping:

The permittee shall keep records of actions taken during periods of malfunction to minimize
emissions in accordance with 40 CFR 63.6605(b), including corrective actions to restore
malfunctioning process and air pollution control and monitoring equipment to its normal or usual
manner of operation. [40 CFR 63.6655(a)] The permittee shall document activities performed to
assure proper operation and maintenance. Records shall be maintained in accordance with 40
CFR 63.6660 and Provision I.S.1 of this permit.

II.B.49.c.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – There are no NESHAP SI emergency engines currently operated on HAFB. See status
of conditions II.B.49.a. and II B.49.b.

II.B.50 Conditions on NESHAP Existing SI Emergency RICE <= 500 Hp (Unit #63)

163

II.B.50.a Condition:

The permittee shall comply with the following operating limitations and other requirements at all times for
each emergency affected emission unit:
1. The permittee shall operate the affected emission unit according to the requirements in paragraphs 1.a
through 1.c. In order for the engine to be considered an emergency stationary RICE under 40 CFR 63
Subpart ZZZZ, any operation other than emergency operation, maintenance and testing, and operation
in non-emergency situations for 50 hours per year, as described in 1.a through 1.c, is prohibited. If the
engine is not operated in accordance with paragraphs 1.a through 1.c, it will not be considered an
emergency engine and shall meet all requirements for non-emergency engines.
a. There is no time limit on the use of emergency stationary RICE in emergency situations.
b. Emergency stationary RICE may be operated for any combination of the purposes specified in
paragraph (i) for a maximum of 100 hours per calendar year. Any operation for non-emergency
situations as allowed by paragraph 1.c counts as part of the 100 hours per calendar year allowed
by this paragraph 1.b.
(i) Emergency stationary RICE may be operated for maintenance checks and readiness testing,
provided that the tests are recommended by federal, state or local government, the
manufacturer, the vendor, the regional transmission organization or equivalent balancing
authority and transmission operator, or the insurance company associated with the engine. A
petition for approval of additional hours to be used for maintenance checks and readiness
testing is not required if the permittee maintains records indicating that federal, state, or local
standards require maintenance and testing of emergency RICE beyond 100 hours per
calendar year.
c. The permittee may operate the affected emission unit up to 50 hours per calendar year in non-
emergency situations. The 50 hours of operation in non-emergency situations are counted as part
of the 100 hours per calendar year for maintenance and testing provided in paragraph 1.b (40 CFR
63.6640(f)(2)). The 50 hours per year for non-emergency situations cannot be used for peak
shaving or non-emergency demand response, or to generate income for the permittee to supply
power to an electric grid or otherwise supply power as part of a financial arrangement with
another entity.
2. The permittee shall meet the following requirements at all times, except during periods of startup:
a. Change oil and filter every 500 hours of operation or annually, whichever comes first;
b. Inspect spark plugs every 1,000 hours of operation or annually, whichever comes first, and replace
as necessary;
c. Inspect all hoses and belts every 500 hours of operation or annually, whichever comes first, and
replace as necessary.
During periods of startup, the permittee shall minimize the engine's time spent at idle and minimize
the engine's startup time to a period needed for appropriate and safe loading of the engine, not to
exceed 30 minutes, after which time the non-startup emission limitations apply.
3. The permittee shall comply with the applicable general provisions in 40 CFR 63.1-15 as identified in
Table 8 of 40 CFR 63 Subpart ZZZZ.
[Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6595(a)(1), 40 CFR 63.6602, 40 CFR 63.6605(a), 40
CFR 63.6625(h), 40 CFR 63.6640(f), 40 CFR 63.6665, 40 CFR 63 Subpart ZZZZ Table 2c, 40 CFR 63
Subpart ZZZZ Table 8]

II.B.50.a.1 Monitoring:

The permittee shall install a non-resettable hour meter if one is not already installed. [40 CFR
63.6625(f)]

164
If an emergency engine is operating during an emergency and it is not possible to shut down the
engine in order to perform the work practice requirements on the required schedule, or if
performing the work practice on the required schedule would otherwise pose an unacceptable risk
under federal, state, or local law, the work practice can be delayed until the emergency is over or
the unacceptable risk under federal, state, or local law has abated. The work practice shall be
performed as soon as practicable after the emergency has ended or the unacceptable risk under
federal, state, or local law has abated. [40 CFR 63 Subpart ZZZZ Table 2c Footnote 1]

The permittee shall demonstrate continuous compliance by operating and maintaining the
stationary RICE and after-treatment control device (if any) according to the manufacturer's
emission-related written operation and maintenance instructions or develop and follow their own
maintenance plan which must provide to the extent practicable for the maintenance and operation
of the engine in a manner consistent with good air pollution control practice for minimizing
emissions. [40 CFR 63.6625(e), 40 CFR 63.6640(a), 40 CFR 63 Subpart ZZZZ Table 6]

The permittee has the option of utilizing an oil analysis program in order to extend the specified
oil change requirement in accordance with 40 CFR 63.6625(j).

The permittee shall comply with the applicable general provisions in 40 CFR 63.1-15 as identified
in Table 8 of 40 CFR 63 Subpart ZZZZ. [40 CFR 63.6665].

II.B.50.a.2 Recordkeeping:

The permittee shall keep the records described in 40 CFR 63.6655(a):
(a) A copy of each notification and report submitted to comply with 40 CFR 63 Subpart ZZZZ,
including all documentation supporting any Initial Notification or Notification of Compliance
Status submitted, according to the requirement in 40 CFR 63.10(b)(2)(xiv).
(b) Records of the occurrence and duration of each malfunction of operation (i.e., process
equipment) or the air pollution control and monitoring equipment.
(c) Records of all required maintenance performed on the air pollution control and monitoring
equipment.

For each affected emission unit that does not meet the standards applicable to non-emergency
engines, the permittee shall keep records of the hours of operation of the engine that are recorded
through the non-resettable hour meter. The permittee shall document how many hours are spent
for emergency operation, including what classified the operation as emergency and how many
hours are spent for non-emergency operation. [40 CFR 63.6655(f)]

If additional hours are to be used for maintenance checks and readiness testing, the permittee shall
maintain records indicating that federal, state, or local standards require maintenance and testing
of emergency RICE beyond 100 hours per calendar year. [40 CFR 63.6640(f)(2)(i)]

The permittee shall keep records that demonstrate continuous compliance with each applicable
operating limitation [including, but not limited to, the manufacturer's emission-related operation
and maintenance instructions or the permittee-developed maintenance plan]. [40 CFR 63.6655(d),
40 CFR 63 Subpart ZZZZ Table 6]

Records of the maintenance conducted shall be kept in order to demonstrate that the permittee
operated and maintained the affected emission unit and after-treatment control device (if any)
according to their own maintenance plan. [40 CFR 63.6655(e)]

165

The permittee shall comply with the applicable general provisions in 40 CFR 63.1-15 as identified
in Table 8 of 40 CFR 63 Subpart ZZZZ. [40 CFR 63.6665]

Records shall be maintained in accordance with 40 CFR 63.6660 and Provision I.S.1 of this
permit.

II.B.50.a.3 Reporting:

The permittee shall report any failure to perform the work practice on the schedule required and
the federal, state or local law under which the risk was deemed unacceptable. [40 CFR 63 Subpart
ZZZZ Table 2c Footnote 1]

The permittee shall comply with the applicable general provisions in 40 CFR 63.1-15 as identified
in 40 CFR 63 Subpart ZZZZ Table 8. [40 CFR 63.6665] The permittee shall also report each
instance in which it did not meet the applicable requirements in Table 8. [40 CFR 63.6640(e)]

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – HAFB has one natural gas emergency generator that is less than 500 Hp.
Records of the nonresectable hour meter readings confirm engine is used only for
emergency purposes. Hours of operation of the engine are tracked in APIMS.

II.B.50.b Condition:

At all times the permittee shall operate and maintain any affected source, including associated air
pollution control equipment and monitoring equipment, in a manner consistent with safety and good air
pollution control practices for minimizing emissions. The general duty to minimize emissions does not
require the permittee to make any further efforts to reduce emissions if levels required by this standard
have been achieved. Determination of whether such operation and maintenance procedures are being used
will be based on information available to the Director which may include, but is not limited to, monitoring
results, review of operation and maintenance procedures, review of operation and maintenance records,
and inspection of the source. [Origin: 40 CFR 63 Subpart ZZZZ]. [40 CFR 63.6595(a)(1), 40 CFR
63.6605(b)]

II.B.50.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.50.b.2 Recordkeeping:

The permittee shall keep records of actions taken during periods of malfunction to minimize
emissions in accordance with 40 CFR 63.6605(b), including corrective actions to restore
malfunctioning process and air pollution control and monitoring equipment to its normal or usual
manner of operation. [40 CFR 63.6655(a)] The permittee shall document activities performed to
assure proper operation and maintenance. Records shall be maintained in accordance with 40
CFR 63.6660 and Provision I.S.1 of this permit.

II.B.50.b.3 Reporting:

166
There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Engine maintenance is conducted and maintenance records are maintained.
Engine Inspection Checklists are entered and tracked in APIMS.

II.B.51 Conditions on Integrated Basewide Shredding System (Unit #64).

II.B.51.a Condition:

Visible emissions from the diesel-fired emission unit shall be no greater than 20 percent opacity except for
a period not exceeding 3 minutes in any hour. [Origin: DAQE-AN0101210207-11]. [R307-305-3(3),
R307-401-8]

II.B.51.a.1 Monitoring:

A visual opacity survey of each affected emission unit shall be performed once each month when
the unit operates, by an individual trained on the observation procedures of 40 CFR 60, Appendix
A, Method 9. The individual is not required to be a certified visible emissions observer. If any
visible emissions are observed, an opacity determination of that emission unit shall be performed
by a certified visible emissions observer in accordance with 40 CFR 60, Appendix A, Method 9.

II.B.51.a.2 Recordkeeping:

The permittee shall record the date of each visual opacity survey and keep a list of the emission
points checked during the visual opacity survey. The permittee shall also keep a log of the
following information for each opacity determination: date and time visual emissions observed,
emission point location and description, time and date of opacity test, and percent opacity. The
records required by this provision and all data required by 40 CFR 60, Appendix A, Method 9
shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.51.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – The Base Wide Shredding System was removed from HAFB last year.

II.B.51.b Condition:

The permittee shall only operate the generator from 6 a.m. to 6 p.m. [Origin: DAQE-AN0101210207-11].
[R307-401-8]

II.B.51.b.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.51.b.2 Recordkeeping:

Records of operation demonstrating compliance with this permit condition shall be maintained in
accordance with Provision I.S.1 of this permit.

167

II.B.51.b.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: N/A – The Base Wide Shredding System was removed from HAFB last year. See status of
condition II.B.51.a.

II.B.52 Conditions on NESHAP Existing Boilers and Process Heaters (Unit #66)

II.B.52.a Condition:

The permittee shall conduct tune-ups as specified in the monitoring for this condition for each existing
affected emission unit with (1) a continuous oxygen trim system that maintains an optimum air to fuel
ratio, or (2) a heat input capacity of less than or equal to 5 million Btu per hour in the gas 1 subcategory.
[Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63 Subpart DDDDD(Table 3), 40 CFR 63.7495(b), 40
CFR 63.7500(a)]

II.B.52.a.1 Monitoring:

Tune-ups shall be conducted as specified in (a) through (e) below.
(a) As applicable, inspect the burner, and clean or replace any components of the burner as
necessary. Burner inspection may be performed prior to the tune-up or be delayed until the
next scheduled or unscheduled unit shutdown but the permittee shall inspect each burner at
least once every 72 months. At units where entry into a piece of process equipment or into a
storage vessel is required to complete the tune-up inspections, inspections are required only
during planned entries into the storage vessel or process equipment;
(b) Inspect the flame pattern, as applicable, and adjust the burner as necessary to optimize the
flame pattern. The adjustment should be consistent with the manufacturer's specifications, if
available;
(c) Inspect the system controlling the air-to-fuel ratio, as applicable, and ensure that it is
correctly calibrated and functioning properly. The permittee may delay the inspection until
the next scheduled unit shutdown;
(d) Optimize total emissions of CO. This optimization should be consistent with the
manufacturer's specifications, if available, and with any NOx requirement to which the unit is
subject;
(e) Measure the concentrations in the effluent stream of CO in parts per million, by volume, and
oxygen in volume percent, before and after the adjustments are made (measurements may be
either on a dry or wet basis, as long as it is the same basis before and after the adjustments
are made). Measurements may be taken using a portable CO analyzer.

Following the initial tune-up, the permittee shall conduct a tune-up of each affected emission unit
every 5 years to demonstrate continuous compliance. Each 5-year tune-up shall be conducted no
more than 61 months after the previous tune-up. If an oxygen trim system is utilized on an
affected emission unit, the permittee shall set the oxygen level no lower than the oxygen
concentration measured during the most recent tune-up. If the unit is not operating on the
required date for a tune-up, the tune-up shall be conducted within 30 calendar days of startup.

[40 CFR 63.7500(e), 40 CFR 63.7515(d), 40 CFR 63.7515(g), 40 CFR 63.7540(a)(10)(i)-(v), 40
CFR 63.7540(a)(12), 40 CFR 63.7540(a)(13)].

168

II.B.52.a.2 Recordkeeping:

The permittee shall maintain on-site, a report containing the following information.
(a) The concentrations of CO in the effluent stream in parts per million by volume, and oxygen
in volume percent, measured at high fire or typical operating load, before and after the tune-
up of the boiler or process heater;
(b) A description of any corrective actions taken as a part of the tune-up; and
(c) The type and amount of fuel used over the 12 months prior to the tune-up, but only if the unit
was physically and legally capable of using more than one type of fuel during that period.
Units sharing a fuel meter may estimate the fuel used by each unit.
[40 CFR 63.7540(a)(10)(vi)]

The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance, including all documentation supporting any Initial Notification or Notification of
Compliance Status or compliance report. [40 CFR 63.7555(a)(1)]

Records demonstrating compliance with this condition shall be maintained in accordance with 40
CFR 63.7560 and Provision I.S.1 of this permit.

II.B.52.a.3 Reporting:

The permittee shall submit the tune-up report if requested. [40 CFR 63.7540(a)(10)(vi)]

The permittee shall submit a compliance report every 5 years. Following submittal of the first
compliance report:
(a) Each subsequent 5-year compliance report shall cover the applicable 5-year period from
January 1 to December 31.
(b) Each subsequent 5-year compliance report shall be postmarked or submitted no later than
January 31.

The compliance report shall contain the following information.
(a) Company and Facility name and address.
(b) Process unit information.
(c) Date of report and beginning and ending dates of the reporting period.
(d) The date of the most recent tune-up for each unit.
(e) The date of the most recent burner inspection if it was not done on a 5-year period and was
delayed until the next scheduled or unscheduled unit shutdown.
(f) Statement by a responsible official with that official's name, title, and signature, certifying
the truth, accuracy, and completeness of the content of the report.

[40 CFR 63.7550(a), (b), (c), 40 CFR 63 Subpart DDDDD Table 9]

The permittee shall submit the reports according to the procedures specified in 40 CFR
63.7550(h)(3).

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – This condition applies to existing boilers less than or equal to 5 million Btu
per hour. The Initial Notices of Compliance (NOC), regarding Subpart DDDDD, was

169
submitted on May 31, 2013. HAFB provided a list of applicable boilers and process heaters.
The list showed the date of tune-up, the next tune-up date, CO concentration, 02% volume
before and after tune-up and any corrective actions. The last tune-up report was submitted
on January 18, 2024.

II.B.52.b Condition:

The permittee shall conduct tune-ups as specified in the monitoring for this condition for each existing
affected emission unit with a heat input capacity of less than 10 million Btu per hour, but greater than 5
million Btu per hour, in the gas 1 subcategory. [Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63
Subpart DDDDD(Table 3), 40 CFR 63.7495(b), 40 CFR 63.7500(a)]

II.B.52.b.1 Monitoring:

Tune-ups shall be conducted as specified in (a) through (e) below.
(a) As applicable, inspect the burner, and clean or replace any components of the burner as
necessary. Burner inspection may be performed prior to the tune-up or be delayed until the
next scheduled unit shutdown. At units where entry into a piece of process equipment or into
a storage vessel is required to complete the tune-up inspections, inspections are required only
during planned entries into the storage vessel or process equipment;
(b) Inspect the flame pattern, as applicable, and adjust the burner as necessary to optimize the
flame pattern. The adjustment should be consistent with the manufacturer's specifications, if
available;
(c) Inspect the system controlling the air-to-fuel ratio, as applicable, and ensure that it is
correctly calibrated and functioning properly. The permittee may delay the inspection until
the next scheduled unit shutdown;
(d) Optimize total emissions of CO. This optimization should be consistent with the
manufacturer's specifications, if available, and with any NOx requirement to which the unit is
subject;
(e) Measure the concentrations in the effluent stream of CO in parts per million, by volume, and
oxygen in volume percent, before and after the adjustments are made (measurements may be
either on a dry or wet basis, as long as it is the same basis before and after the adjustments
are made). Measurements may be taken using a portable CO analyzer.

Following the initial tune-up, the permittee shall conduct a tune-up of each affected emission unit
every 2 years to demonstrate continuous compliance. Each biennial tune-up shall be conducted
no more than 25 months after the previous tune-up. If the unit is not operating on the required date
for a tune-up, the tune-up shall be conducted within 30 calendar days of startup.

[40 CFR 63.7500(e), 40 CFR 63.7515(d), 40 CFR 63.7515(g), 40 CFR 63.7540(a)(10)(i)-(v), 40
CFR 63.7540(a)(11), 40 CFR 63.7540(a)(13)].

II.B.52.b.2 Recordkeeping:

The permittee shall maintain on-site, a report containing the following information.
(a) The concentrations of CO in the effluent stream in parts per million by volume, and oxygen
in volume percent, measured at high fire or typical operating load, before and after the tune-
up of the boiler or process heater;
(b) A description of any corrective actions taken as a part of the tune-up; and

170
(c) The type and amount of fuel used over the 12 months prior to the tune-up, but only if the unit
was physically and legally capable of using more than one type of fuel during that period.
Units sharing a fuel meter may estimate the fuel used by each unit.
[40 CFR 63.7540(a)(10)(vi)]

The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance, including all documentation supporting any Initial Notification or Notification of
Compliance Status or compliance report. [40 CFR 63.7555(a)(1)]

Records demonstrating compliance with this condition shall be maintained in accordance with 40
CFR 63.7560 and Provision I.S.1 of this permit.

II.B.52.b.3 Reporting:

The permittee shall submit the tune-up report if requested. [40 CFR 63.7540(a)(10)(vi)]

The permittee shall submit a compliance report every 2 years. Following submittal of the first
compliance report:
(a) Each subsequent 2-year compliance report shall cover the applicable 2-year period from
January 1 to December 31.
(b) Each subsequent 2-year compliance report shall be postmarked or submitted no later than
January 31.

The compliance report shall contain the following information.
(a) Company and Facility name and address.
(b) Process unit information.
(c) Date of report and beginning and ending dates of the reporting period.
(d) The date of the most recent tune-up for each unit.
(e) The date of the most recent burner inspection if it was not done biennially and was delayed
until the next scheduled or unscheduled unit shutdown.
(f) Statement by a responsible official with that official's name, title, and signature, certifying
the truth, accuracy, and completeness of the content of the report.

[40 CFR 63.7550(a), (b), (c), 40 CFR 63 Subpart DDDDD Table 9]

The permittee shall submit the reports according to the procedures specified in 40 CFR
63.7550(h)(3).

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – This condition applies to existing boilers between 5 and 10 million Btu per
hour. The Initial Notices of Compliance (NOC), regarding Subpart DDDDD, was submitted
on May 31, 2013. HAFB provided a list of applicable boilers and process heaters. The list
showed the date of tune-up, the next tune-up date, CO concentration, 02% volume before
and after tune-up and any corrective actions. The last tune-up report was submitted on
January 18, 2024.

II.B.52.c Condition:

171
The permittee shall conduct tune-ups as specified in the monitoring for this condition for each existing
affected emission unit with a heat input capacity of 10 million Btu per hour or greater and without a
continuous oxygen trim system. [Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63 Subpart
DDDDD(Table 3), 40 CFR 63.7495(b), 40 CFR 63.7500(a)]

II.B.52.c.1 Monitoring:

Tune-ups shall be conducted as specified in (a) through (e) below while burning the type of fuel
that provided the majority of the heat input to the affected emission unit over the 12 months prior
to the tune-up.
(a) As applicable, inspect the burner, and clean or replace any components of the burner as
necessary. Burner inspection may be performed prior to the tune-up or be delayed until the
next scheduled unit shutdown. At units where entry into a piece of process equipment or into
a storage vessel is required to complete the tune-up inspections, inspections are required only
during planned entries into the storage vessel or process equipment;
(b) Inspect the flame pattern, as applicable, and adjust the burner as necessary to optimize the
flame pattern. The adjustment should be consistent with the manufacturer's specifications, if
available;
(c) Inspect the system controlling the air-to-fuel ratio, as applicable, and ensure that it is
correctly calibrated and functioning properly. The permittee may delay the inspection until
the next scheduled unit shutdown;
(d) Optimize total emissions of CO. This optimization should be consistent with the
manufacturer's specifications, if available, and with any NOx requirement to which the unit is
subject;
(e) Measure the concentrations in the effluent stream of CO in parts per million, by volume, and
oxygen in volume percent, before and after the adjustments are made (measurements may be
either on a dry or wet basis, as long as it is the same basis before and after the adjustments
are made). Measurements may be taken using a portable CO analyzer.

Following the initial tune-up, the permittee shall conduct a tune-up of each affected emission unit
annually to demonstrate continuous compliance. Each annual tune-up shall be no more than 13
months after the previous tune-up. The permittee shall conduct this tune-up as a work practice for
all regulated emissions under 40 CFR 63 Subpart DDDDD. If the unit is not operating on the
required date for a tune-up, the tune-up shall be conducted within 30 calendar days of startup.

[40 CFR 63.7515(d), 40 CFR 63.7515(g), 40 CFR 63.7540(a)(10)(i)-(v), 40 CFR 63.7540(a)(13),
40 CFR 63 Subpart DDDDD Table 3].

II.B.52.c.2 Recordkeeping:

The permittee shall maintain on-site, a report containing the following information.
(a) The concentrations of CO in the effluent stream in parts per million by volume, and oxygen
in volume percent, measured at high fire or typical operating load, before and after the tune-
up of the boiler or process heater;
(b) A description of any corrective actions taken as a part of the tune-up; and
(c) The type and amount of fuel used over the 12 months prior to the tune-up, but only if the unit
was physically and legally capable of using more than one type of fuel during that period.
Units sharing a fuel meter may estimate the fuel used by each unit.
[40 CFR 63.7540(a)(10)(vi)]

The permittee shall keep a copy of each notification and report submitted to demonstrate

172
compliance, including all documentation supporting any Initial Notification or Notification of
Compliance Status or compliance report. [40 CFR 63.7555(a)(1)]

Records demonstrating compliance with this condition shall be maintained in accordance with 40
CFR 63.7560 and Provision I.S.1 of this permit.

II.B.52.c.3 Reporting:

The permittee shall submit the annual tune-up report if requested. [40 CFR 63.7540(a)(10)(vi)]

The permittee shall submit a compliance report annually. Following submittal of the first
compliance report:
(a) Each subsequent annual compliance report shall cover the applicable 1-year period from
January 1 to December 31.
(b) Each subsequent annual compliance report shall be postmarked or submitted no later than
January 31.

The compliance report shall contain the following information.
(a) Company and Facility name and address.
(b) Process unit information.
(c) Date of report and beginning and ending dates of the reporting period.
(d) The date of the most recent tune-up for each unit.
(e) The date of the most recent burner inspection if it was not done annually and was delayed
until the next scheduled or unscheduled unit shutdown.
(f) Statement by a responsible official with that official's name, title, and signature, certifying
the truth, accuracy, and completeness of the content of the report.

[40 CFR 63.7550(a), (b), (c), 40 CFR 63 Subpart DDDDD Table 9]

The permittee shall submit the reports according to the procedures specified in 40 CFR
63.7550(h)(3).

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – This condition applies to existing boilers 10 million Btu per hour or greater
and without oxygen trim. The Initial Notices of Compliance (NOC), regarding Subpart
DDDDD, was submitted on May 31, 2013. HAFB provided a list of applicable boilers and
process heaters. The list showed the date of tune-up, the next tune-up dated, CO
concentration, 02% volume before and after tune-up and any corrective actions. The last
tune-up report was submitted on January 18, 2024.

II.B.52.d Condition:

If the permittee intends to use a fuel other than natural gas, refinery gas, gaseous fuel subject to another
subpart of 40 CFR 63, 40 CFR 60, 40 CFR 61, or 40 CFR 65, or other gas 1 fuel to fire the affected
emission unit during a period of natural gas curtailment or supply interruption, as defined in 40 CFR
63.7575, the permittee shall submit a notification of alternative fuel use within 48 hours of the declaration
of each period of natural gas curtailment or supply interruption. [Origin: 40 CFR 63 Subpart DDDDD].
[40 CFR 63.7545(f)]

173
II.B.52.d.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.52.d.2 Recordkeeping:

The permittee shall keep records of the total hours per calendar year that alternative fuel is burned
and the total hours per calendar year that the unit operated during periods of gas curtailment or
gas supply emergencies. [40 CFR 63.7555(h)]

The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance. [40 CFR 63.7555(a)(1)]

Records demonstrating compliance with this condition shall be maintained in accordance with 40
CFR 63.7560 and Provision I.S.1 of this permit.

II.B.52.d.3 Reporting:

The notification shall include the following information.
(a) Company name and address.
(b) Identification of the affected unit.
(c) Reason the permittee is unable to use natural gas or equivalent fuel, including the date when
the natural gas curtailment was declared or the natural gas supply interruption began.
(d) Type of alternative fuel that the permittee intends to use.
(e) Dates when the alternative fuel use is expected to begin and end.
[40 CFR 63.7545(f)]

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – An alternative fuel use notice was submitted on September 11, 2024. It
regarded the use of diesel fuel to operate the new rental boilers during a natural gas
curtailment.

II.B.52.e Condition:

If the permittee has switched fuels or made a physical change to an affected emission unit and the fuel
switch or physical change resulted in the applicability of a different subcategory, the permittee shall
provide notice of the date upon which the permittee switched fuels or made the physical change within 30
days of the switch/change. The permittee shall be in compliance with the applicable existing source
provisions of 40 CFR 63 Subpart DDDDD on the effective date of the fuel switch or physical change. The
permittee shall demonstrate compliance within 60 days of the effective date of the switch, unless the
permittee had previously conducted a compliance demonstration for this subcategory within the previous
12 months.
[Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63.7495(h), 40 CFR 63.7510(k), 40 CFR 63.7545(h)]

II.B.52.e.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.52.e.2 Recordkeeping:

174

The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance. [40 CFR 63.7555(a)(1)] Records shall be maintained in accordance with 40 CFR
63.7560 and Provision I.S.1 of this permit.

II.B.52.e.3 Reporting:

The notification shall identify:
(a) The name of the permittee, the location of the affected emission unit, the affected emission
unit that has switched fuels, was physically changed, and the date of the notice.
(b) The currently applicable subcategory under 40 CFR 63 Subpart DDDDD.
(c) The date upon which the fuel switch or physical change occurred.
[40 CFR 63.7545(h)]

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – The last no fuel switch report was submitted in 2023 – 2024.

II.B.52.f Condition:

Unless otherwise specified in this permit, the permittee shall at all times, operate and maintain any
affected emission unit, including associated air pollution control equipment and monitoring equipment, in
a manner consistent with safety and good air pollution control practices for minimizing emissions.
Determination of whether such operation and maintenance procedures are being used will be based on
information available to the Director that may include, but is not limited to, monitoring results, review of
operation and maintenance procedures, review of operation and maintenance records, and inspection of
the source. [Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63.7495(b), 40 CFR 63.7500(a)(3)]

II.B.52.f.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.52.f.2 Recordkeeping:

Permittee shall document activities performed to assure proper operation and maintenance.
Records shall be maintained in accordance with 40 CFR 63.7560 and Provision I.S.1 of this
permit.

II.B.52.f.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The boilers and process heaters observed during this inspection appeared to
be operated in accordance with this condition. Boilers are inspected annually for
maintenance purposes and to minimize emissions. The Civil Engineering Tririga System is
used to track boiler maintenance.

II.B.53 Conditions on NESHAP New/Reconst Boilers and Process Heaters (Unit #67)

175
II.B.53.a Condition:

The permittee shall conduct tune-ups as specified in the monitoring for this condition for each new or
reconstructed affected emission unit with (1) a continuous oxygen trim system that maintains an optimum
air to fuel ratio, or (2) a heat input capacity of less than or equal to 5 million Btu per hour in the gas 1
subcategory. [Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63 Subpart DDDDD(Table 3), 40 CFR
63.7495(a), 40 CFR 63.7500(a), 40 CFR 63.7510(g)]

II.B.53.a.1 Monitoring:

The first tune-up shall be conducted no later than 61 months after initial startup. The first and
subsequent tune-ups shall be conducted as specified in (a) through (e) below.
(a) As applicable, inspect the burner, and clean or replace any components of the burner as
necessary. Burner inspection may be performed prior to the tune-up or be delayed until the
next scheduled or unscheduled unit shutdown but the permittee shall inspect each burner at
least once every 72 months. At units where entry into a piece of process equipment or into a
storage vessel is required to complete the tune-up inspections, inspections are required only
during planned entries into the storage vessel or process equipment;
(b) Inspect the flame pattern, as applicable, and adjust the burner as necessary to optimize the
flame pattern. The adjustment should be consistent with the manufacturer's specifications, if
available;
(c) Inspect the system controlling the air-to-fuel ratio, as applicable, and ensure that it is
correctly calibrated and functioning properly. The permittee may delay the inspection until
the next scheduled unit shutdown;
(d) Optimize total emissions of CO. This optimization should be consistent with the
manufacturer's specifications, if available, and with any NOx requirement to which the unit is
subject;
(e) Measure the concentrations in the effluent stream of CO in parts per million, by volume, and
oxygen in volume percent, before and after the adjustments are made (measurements may be
either on a dry or wet basis, as long as it is the same basis before and after the adjustments
are made). Measurements may be taken using a portable CO analyzer.

Following the first tune-up, the permittee shall conduct a tune-up of each affected emission unit
every 5 years to demonstrate continuous compliance. Each 5-year tune-up shall be conducted no
more than 61 months after the previous tune-up. If an oxygen trim system is utilized on an
affected emission unit, the permittee shall set the oxygen level no lower than the oxygen
concentration measured during the most recent tune-up. If the unit is not operating on the
required date for a tune-up, the tune-up shall be conducted within 30 calendar days of startup.

[40 CFR 63.7500(e), 40 CFR 63.7515(d), 40 CFR 63.7515(g), 40 CFR 63.7540(a)(10)(i)-(v), 40
CFR 63.7540(a)(12), 40 CFR 63.7540(a)(13)].

II.B.53.a.2 Recordkeeping:

The permittee shall maintain on-site, a report containing the following information.
(a) The concentrations of CO in the effluent stream in parts per million by volume, and oxygen
in volume percent, measured at high fire or typical operating load, before and after the tune-
up of the boiler or process heater;
(b) A description of any corrective actions taken as a part of the tune-up; and

176
(c) The type and amount of fuel used over the 12 months prior to the tune-up, but only if the unit
was physically and legally capable of using more than one type of fuel during that period.
Units sharing a fuel meter may estimate the fuel used by each unit.
[40 CFR 63.7540(a)(10)(vi)]

The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance, including all documentation supporting any Initial Notification or Notification of
Compliance Status or compliance report. [40 CFR 63.7555(a)(1)]

Records demonstrating compliance with this condition shall be maintained in accordance with 40
CFR 63.7560 and Provision I.S.1 of this permit.

II.B.53.a.3 Reporting:

The permittee shall submit the tune-up report if requested. [40 CFR 63.7540(a)(10)(vi)]

The permittee shall submit a compliance report every 5 years.
(a) The first compliance report shall cover the period beginning at startup and ending on
December 31 within five years after the beginning date of the report.
(b) The first 5-year compliance report shall be postmarked or submitted no later than January 31.
(c) Each subsequent 5-year compliance report shall cover the applicable 5-year period from
January 1 to December 31.
(d) Each subsequent 5-year compliance report shall be postmarked or submitted no later than
January 31.

The compliance report shall contain the following information.
(a) Company and Facility name and address.
(b) Process unit information.
(c) Date of report and beginning and ending dates of the reporting period.
(d) The date of the most recent tune-up for each unit.
(e) The date of the most recent burner inspection if it was not done on a 5-year period and was
delayed until the next scheduled or unscheduled unit shutdown.
(f) Statement by a responsible official with that official's name, title, and signature, certifying
the truth, accuracy, and completeness of the content of the report.

[40 CFR 63.7550(a), (b), (c), 40 CFR 63 Subpart DDDDD Table 9]

The permittee shall submit the reports according to the procedures specified in 40 CFR
63.7550(h)(3).

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – This condition applies to new boilers or boilers that were reconstructed
after June 4, 2010, with a continuous oxygen trim system and are less than or equal to 5
million Btu per hour. Records are maintained to show tune-ups are completed per the
schedule listed above for each applicable unit. This condition states that reports are to be
submitted to EPA’s CEDRI website (40 CFR 63.7550(h)(3). Semi-annual reports need not
be submitted, only annual, bi-annual or 5 year reports, whichever is applicable to each unit.

II.B.53.b Condition:

177

The permittee shall conduct tune-ups as specified in the monitoring for this condition for each new or
reconstructed affected emission unit with a heat input capacity of less than 10 million Btu per hour, but
greater than 5 million Btu per hour, in the gas 1 subcategory.
[Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63 Subpart DDDDD(Table 3), 40 CFR 63.7495(a), 40
CFR 63.7500(a), 40 CFR 63.7510(g)]

II.B.53.b.1 Monitoring:

The first tune-up shall be conducted no later than 25 months after initial startup. The first and
subsequent tune-ups shall be conducted as specified in (a) through (e) below.
(a) As applicable, inspect the burner, and clean or replace any components of the burner as
necessary. Burner inspection may be performed prior to the tune-up or be delayed until the
next scheduled unit shutdown. At units where entry into a piece of process equipment or into
a storage vessel is required to complete the tune-up inspections, inspections are required only
during planned entries into the storage vessel or process equipment;
(b) Inspect the flame pattern, as applicable, and adjust the burner as necessary to optimize the
flame pattern. The adjustment should be consistent with the manufacturer's specifications, if
available;
(c) Inspect the system controlling the air-to-fuel ratio, as applicable, and ensure that it is
correctly calibrated and functioning properly. The permittee may delay the inspection until
the next scheduled unit shutdown;
(d) Optimize total emissions of CO. This optimization should be consistent with the
manufacturer's specifications, if available, and with any NOx requirement to which the unit is
subject;
(e) Measure the concentrations in the effluent stream of CO in parts per million, by volume, and
oxygen in volume percent, before and after the adjustments are made (measurements may be
either on a dry or wet basis, as long as it is the same basis before and after the adjustments
are made). Measurements may be taken using a portable CO analyzer.

Following the first tune-up, the permittee shall conduct a tune-up of each affected emission unit
every 2 years to demonstrate continuous compliance. Each biennial tune-up shall be conducted
no more than 25 months after the previous tune-up. If the unit is not operating on the required date
for a tune-up, the tune-up shall be conducted within 30 calendar days of startup.

[40 CFR 63.7500(e), 40 CFR 63.7515(d), 40 CFR 63.7515(g), 40 CFR 63.7540(a)(10)(i)-(v), 40
CFR 63.7540(a)(11), 40 CFR 63.7540(a)(13)].

II.B.53.b.2 Recordkeeping:

The permittee shall maintain on-site, a report containing the following information.
(a) The concentrations of CO in the effluent stream in parts per million by volume, and oxygen
in volume percent, measured at high fire or typical operating load, before and after the tune-
up of the boiler or process heater;
(b) A description of any corrective actions taken as a part of the tune-up; and
(c) The type and amount of fuel used over the 12 months prior to the tune-up, but only if the unit
was physically and legally capable of using more than one type of fuel during that period.
Units sharing a fuel meter may estimate the fuel used by each unit.
[40 CFR 63.7540(a)(10)(vi)]

The permittee shall keep a copy of each notification and report submitted to demonstrate

178
compliance, including all documentation supporting any Initial Notification or Notification of
Compliance Status or compliance report. [40 CFR 63.7555(a)(1)]

Records demonstrating compliance with this condition shall be maintained in accordance with 40
CFR 63.7560 and Provision I.S.1 of this permit.

II.B.53.b.3 Reporting:

The permittee shall submit the tune-up report if requested. [40 CFR 63.7540(a)(10)(vi)]

The permittee shall submit a compliance report every 2 years.
(a) The first compliance report shall cover the period beginning at startup and ending on
December 31, within two years after the beginning date of the report.
(b) The first 2-year compliance report shall be postmarked or submitted no later than January 31.
(c) Each subsequent 2-year compliance report shall cover the applicable 2-year period from
January 1 to December 31.
(d) Each subsequent 2-year compliance report shall be postmarked or submitted no later than
January 31.

The compliance report shall contain the following information.
(a) Company and Facility name and address.
(b) Process unit information.
(c) Date of report and beginning and ending dates of the reporting period.
(d) The date of the most recent tune-up for each unit.
(e) The date of the most recent burner inspection if it was not done annually and was delayed
until the next scheduled or unscheduled unit shutdown.
(f) Statement by a responsible official with that official's name, title, and signature, certifying
the truth, accuracy, and completeness of the content of the report.

[40 CFR 63.7550(a), (b), (c), 40 CFR 63 Subpart DDDDD Table 9]

The permittee shall submit the reports according to the procedures specified in 40 CFR
63.7550(h)(3).

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – This condition applies to new boilers or boilers that were reconstructed
after June 4, 2010, and are less than 10 million Btu per hour, but greater than 5 million Btu
per hour. Records are maintained to show tune-ups are completed per the schedule listed
above for each applicable unit. This condition states that reports are to be submitted to
EPA’s CEDRI website (40 CFR 63.7550(h)(3). Semi-annual reports need not be submitted,
only annual, bi-annual or 5 year reports, whichever is applicable to each unit.

II.B.53.c Condition:

The permittee shall conduct tune-ups as specified in the monitoring for this condition for each new or
reconstructed affected emission unit with a heat input capacity of 10 million Btu per hour or greater and
without a continuous oxygen trim system.
[Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63 Subpart DDDDD(Table 3), 40 CFR 63.7495(a), 40
CFR 63.7500(a), 40 CFR 63.7510(g)]

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II.B.53.c.1 Monitoring:

The first tune-up shall be conducted no later than 13 months after initial startup. The first and
subsequent tune-ups shall be conducted as specified in (a) through (e) below while burning the
type of fuel that provided the majority of the heat input to the affected emission unit over the 12
months prior to the tune-up.
(a) As applicable, inspect the burner, and clean or replace any components of the burner as
necessary. Burner inspection may be performed prior to the tune-up or be delayed until the
next scheduled unit shutdown. At units where entry into a piece of process equipment or into
a storage vessel is required to complete the tune-up inspections, inspections are required only
during planned entries into the storage vessel or process equipment;
(b) Inspect the flame pattern, as applicable, and adjust the burner as necessary to optimize the
flame pattern. The adjustment should be consistent with the manufacturer's specifications, if
available;
(c) Inspect the system controlling the air-to-fuel ratio, as applicable, and ensure that it is
correctly calibrated and functioning properly. The permittee may delay the inspection until
the next scheduled unit shutdown;
(d) Optimize total emissions of CO. This optimization should be consistent with the
manufacturer's specifications, if available, and with any NOx requirement to which the unit is
subject;
(e) Measure the concentrations in the effluent stream of CO in parts per million, by volume, and
oxygen in volume percent, before and after the adjustments are made (measurements may be
either on a dry or wet basis, as long as it is the same basis before and after the adjustments
are made). Measurements may be taken using a portable CO analyzer.

Following the first tune-up, the permittee shall conduct a tune-up of each affected emission unit
annually to demonstrate continuous compliance. Each annual tune-up shall be no more than 13
months after the previous tune-up. The permittee shall conduct this tune-up as a work practice for
all regulated emissions under 40 CFR 63 Subpart DDDDD. If the unit is not operating on the
required date for a tune-up, the tune-up shall be conducted within 30 calendar days of startup.

[40 CFR 63.7515(d), 40 CFR 63.7515(g), 40 CFR 63.7540(a)(10)(i)-(v), 40 CFR 63.7540(a)(13),
40 CFR 63 Subpart DDDDD Table 3].

II.B.53.c.2 Recordkeeping:

The permittee shall maintain on-site, a report containing the following information.
(a) The concentrations of CO in the effluent stream in parts per million by volume, and oxygen
in volume percent, measured at high fire or typical operating load, before and after the tune-
up of the boiler or process heater;
(b) A description of any corrective actions taken as a part of the tune-up; and
(c) The type and amount of fuel used over the 12 months prior to the tune-up, but only if the unit
was physically and legally capable of using more than one type of fuel during that period.
Units sharing a fuel meter may estimate the fuel used by each unit.
[40 CFR 63.7540(a)(10)(vi)]

The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance, including all documentation supporting any Initial Notification or Notification of
Compliance Status or compliance report. [40 CFR 63.7555(a)(1)]

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Records demonstrating compliance with this condition shall be maintained in accordance with 40
CFR 63.7560 and Provision I.S.1 of this permit.

II.B.53.c.3 Reporting:

The permittee shall submit the tune-up report if requested. [40 CFR 63.7540(a)(10)(vi)]

The permittee shall submit a compliance report annually.
(a) The first compliance report shall cover the period beginning at startup and ending on
December 31, within one year after the beginning date of the report.
(b) The first annual compliance report shall be postmarked or submitted no later than January 31.
(c) Each subsequent annual compliance report shall cover the applicable 1-year period from
January 1 to December 31.
(d) Each subsequent annual compliance report shall be postmarked or submitted no later than
January 31.

The compliance report shall contain the following information.
(a) Company and Facility name and address.
(b) Process unit information.
(c) Date of report and beginning and ending dates of the reporting period.
(d) The date of the most recent tune-up for each unit.
(e) The date of the most recent burner inspection if it was not done annually and was delayed
until the next scheduled or unscheduled unit shutdown.
(f) Statement by a responsible official with that official's name, title, and signature, certifying
the truth, accuracy, and completeness of the content of the report.

[40 CFR 63.7550(a), (b), (c), 40 CFR 63 Subpart DDDDD Table 9]

The permittee shall submit the reports according to the procedures specified in 40 CFR
63.7550(h)(3).

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – This condition applies to new boilers or boilers that were reconstructed
after June 4, 2010, and 10 million Btu per hour or greater and without a continuous oxygen
trim system. Records are maintained to show tune-ups are completed per the schedule
listed above for each applicable unit. This condition states that reports are to be submitted
to EPA’s CEDRI website (40 CFR 63.7550(h)(3). Semi-annual reports need not be
submitted, only annual, bi-annual or 5 year reports, whichever is applicable to each unit.

II.B.53.d Condition:

If the permittee intends to use a fuel other than natural gas, refinery gas, gaseous fuel subject to another
subpart of 40 CFR 63, 40 CFR 60, 40 CFR 61, or 40 CFR 65, or other gas 1 fuel to fire the affected
emission unit during a period of natural gas curtailment or supply interruption, as defined in 40 CFR
63.7575, the permittee shall submit a notification of alternative fuel use within 48 hours of the declaration
of each period of natural gas curtailment or supply interruption. [Origin: 40 CFR 63 Subpart DDDDD].
[40 CFR 63.7545(f)]

II.B.53.d.1 Monitoring:

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Records required for this permit condition will serve as monitoring.

II.B.53.d.2 Recordkeeping:

The permittee shall keep records of the total hours per calendar year that alternative fuel is burned
and the total hours per calendar year that the unit operated during periods of gas curtailment or
gas supply emergencies. [40 CFR 63.7555(h)]

The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance. [40 CFR 63.7555(a)(1)]

Records demonstrating compliance with this condition shall be maintained in accordance with 40
CFR 63.7560 and Provision I.S.1 of this permit.

II.B.53.d.3 Reporting:

The notification shall include the following information.
(a) Company name and address.
(b) Identification of the affected unit.
(c) Reason the permittee is unable to use natural gas or equivalent fuel, including the date when
the natural gas curtailment was declared or the natural gas supply interruption began.
(d) Type of alternative fuel that the permittee intends to use.
(e) Dates when the alternative fuel use is expected to begin and end.
[40 CFR 63.7545(f)]

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – An alternative fuel use notice was submitted on September 11, 2024. It
regarded the use of diesel fuel to operate the new rental boilers during a natural gas
curtailment. See status of condition II.B.52.d.

II.B.53.e Condition:

If the permittee has switched fuels or made a physical change to an affected emission unit and the fuel
switch or physical change resulted in the applicability of a different subcategory, the permittee shall
provide notice of the date upon which the permittee switched fuels or made the physical change within 30
days of the switch/change. The permittee shall be in compliance with the applicable new source
provisions of 40 CFR 63 Subpart DDDDD on the effective date of the fuel switch or physical change. The
permittee shall demonstrate compliance within 60 days of the effective date of the switch, unless the
permittee had previously conducted a compliance demonstration for this subcategory within the previous
12 months. [Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63.7495(i), 40 CFR 63.7510(k), 40 CFR
63.7545(h)]

II.B.53.e.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.53.e.2 Recordkeeping:

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The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance. [40 CFR 63.7555(a)(1)] Records shall be maintained in accordance with 40 CFR
63.7560 and Provision I.S.1 of this permit.

II.B.53.e.3 Reporting:

The notification shall identify:
(a) The name of the permittee, the location of the affected emission unit, the affected emission
unit that has switched fuels, were physically changed, and the date of the notice.
(b) The currently applicable subcategory under 40 CFR 63 Subpart DDDDD.
(c) The date upon which the fuel switch or physical change occurred.
[40 CFR 63.7545(h)]

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – The last no fuel switch report was submitted in 2023 – 2024. See status of
condition II.B.52.e.

II.B.53.f Condition:

The permittee shall at all times, operate and maintain any affected emission unit, including associated air
pollution control equipment and monitoring equipment, in a manner consistent with safety and good air
pollution control practices for minimizing emissions. Determination of whether such operation and
maintenance procedures are being used will be based on information available to the Director that may
include, but is not limited to, monitoring results, review of operation and maintenance procedures, review
of operation and maintenance records, and inspection of the source. [Origin: 40 CFR 63 Subpart
DDDDD]. [40 CFR 63.7495(a), 40 CFR 63.7500(a)(3)]

II.B.53.f.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.53.f.2 Recordkeeping:

Permittee shall document activities performed to assure proper operation and maintenance.
Records shall be maintained in accordance with 40 CFR 63.7560 and Provision I.S.1 of this
permit.

II.B.53.f.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The boilers and process heaters observed during this inspection appeared to
be operated in accordance with this condition. Boilers are inspected annually for
maintenance purposes and to minimize emissions. The Civil Engineering Tririga System is
used to track boiler maintenance. See status of condition II.B.52.f.

II.B.53.g Condition:

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For each affected emission unit with a startup on or after January 31, 2013, the permittee shall submit an
Initial Notification, as specified in 40 CFR 63.9(b)(4) and (5), not later than 30 days after the actual date
of startup. [Origin: 40 CFR 63 Subpart DDDDD]. [40 CFR 63.7495(d), 40 CFR 63.7545(c), 40 CFR
63.9(i)]

II.B.53.g.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.53.g.2 Recordkeeping:

The permittee shall keep a copy of each notification and report submitted to demonstrate
compliance, including all documentation supporting any Initial Notification or Notification of
Compliance Status or compliance report. [40 CFR 63.7555(a)(1)] Records shall be maintained in
accordance with 40 CFR 63.7560 and Provision I.S.1 of this permit.

II.B.53.g.3 Reporting:

For each affected emission unit, the permittee shall submit an Initial Notification containing the
information specified in 40 CFR 63.9(b)(4) and (5). There are no additional reporting
requirements for this provision except those specified in Section I of this permit.

Status: In compliance – An initial notice was submitted pursuant to this condition on December 9,
2016 for two boilers in Bldg. 1590 and 1286. The NOC required under 40 CFR 63 Subpart
DDDDD was submitted on March 8, 2016. The NOC confirms that an energy assessment
was performed in accordance with Subpart DDDDD. The NOC also updated initial notices.
An initial startup notice of new boilers #44693, #44694 and #44695 was submitted on
October 17, 2018 (63.7545(c)). These boilers are located in buildings 2104 and 2203. An
initial startup notice was submitted on October 24, 2019, for Bldg. 2104, Subpart DDDDD
boiler – Gas 1 (8.2 MMBtu/hr) – has a startup of September 30, 2019.

II.B.54 Conditions on Adhesives and Sealants (Unit #68)

II.B.54.a Condition:

1. The permittee shall not sell supply or offer for sale any adhesive, sealant, adhesive primer or sealant
primer with a VOC content in excess of the limits in Table 1 and that was manufactured on or after
September 1, 2014.
2. The permittee shall not apply adhesives, sealants, adhesive primers or sealant primers with a VOC
content in excess of the limits specified in Table 1 unless the adhesive, sealant, adhesive primer or
sealant primer was manufactured before September 1, 2014.
3. The VOC content limits in Table 1 for adhesives applied to particular substrates shall apply as
follows:
a. If the permittee uses an adhesive or sealant subject to a specific VOC content limit for such
adhesive or sealant in Table 1, such specific limit is applicable rather than an adhesive-to-
substrate limit; and
b. If an adhesive is used to bond dissimilar substrates together, the applicable substrate category with
the highest VOC content shall be the limit for such use.
TABLE 1

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VOC Content Limits for Adhesives, Sealants, Adhesive Primers, Sealant Primers and Adhesives Applied
to Particular Substrates (minus water and exempt compounds (compounds that are not defined as VOC in
R307-101-2)), as applied

Adhesive, Sealant, Adhesive Primer Category VOC Content Limit
(grams VOC/liter)
Adhesives
ABS welding 400
Ceramic tile installation 130
Computer diskette jacket manufacturing 850
Contact bond 250
Cove base installation 150
CPVC welding 490
Indoor floor covering installation 150
Metal to urethane/rubber molding or casting 850
Multipurpose construction 200
Nonmembrane roof installation/repair 300
Other plastic cement welding 510
Outdoor floor covering installation 250
PVC welding 510
Single-ply roof membrane installation/repair 250
Structural glazing 100
Thin metal laminating 780
Tire retread 100
Perimeter bonded sheet vinyl flooring installation 660
Waterproof resorcinol glue 170
Sheet-applied rubber installation 850
Sealants
Architectural 250
Marine deck 760
Nonmembrane roof installation/repair 300
Roadway 250
Single-ply roof membrane 450
Other 420
Adhesive Primers
Automotive glass 700
Plastic cement welding 650
Single-ply roof membrane 250
Traffic marking tape 150
Other 250
Sealant Primers
Non-porous architectural 250
Porous architectural 775
Marine deck 760
Other 750
Adhesives Applied to the Listed Substrate
Flexible vinyl 250
Fiberglass 200
Metal 30
Porous material 120
Rubber 250

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Other substrates 250
4. The permittee shall only use the following equipment to apply adhesives and sealants:
a. Electrostatic application;
b. Flow coater;
c. Roll coater;
d. Dip coater;
e. Hand application method;
f. Airless spray and air-assisted airless spray;
g. High volume, low pressure spray equipment operated in accordance with the manufacturer’s
specifications; or
h. Other methods having a minimum 65% transfer efficiency.
5. Removal of an adhesive, sealant, adhesive primer or sealant primer from the parts of spray application
equipment shall be performed as follows:
a. In an enclosed cleaning system;
b. Using a solvent (excluding water and solvents exempt from the definition of volatile organic
compounds found in R307-101-2) with a VOC content less than or equal to 70 grams of VOC per
liter of material; or
c. Parts containing dried adhesive may be soaked in a solvent if the composite vapor pressure of the
solvent, excluding water and exempt compounds, is less than or equal to 9.5 mm Hg at 20 degrees
Celsius and the parts and solvent are in a closed container that remains closed except when adding
parts to or removing parts from the container.
d. Except as provided in 5.a. through 5.c., the permittee shall not use materials containing VOCs for
the removal of adhesives, sealants, or adhesive or sealant primers from surfaces, other than spray
application equipment, unless the composite vapor pressure of the solvent used is less than 45 mm
Hg at 20 degrees Celsius. (R307-342-7)
6. These requirements do not apply to the following:
a. Adhesives, sealants, adhesive primers or sealant primers being tested or evaluated in any research
and development, quality assurance or analytical laboratory;
b. Adhesives and sealants that contain less than 20 grams of VOC per liter of adhesive or sealant,
less water and exempt solvents, as applied;
c. Cyanoacrylate adhesives;
d. Adhesives, sealants, adhesive primers or sealant primers that are sold or supplied by the
manufacturer or supplier in containers with a net volume of 16 fluid ounces or less or that have a
net weight of one pound or less, except plastic cement welding adhesives and contact adhesives;
e. Contact adhesives that are sold or supplied by the manufacturer or supplier in containers with a
net volume of one gallon or less;
f. Aerosol adhesives and primers dispensed from aerosol spray cans; or
g. Polyester bonding putties to assemble fiberglass parts at fiberglass boat manufacturing facilities
and at other reinforced plastic composite manufacturing facilities.
7. These requirements do not apply to the use of adhesives, sealants, adhesive primers, sealant primers,
surface preparation and cleanup solvents in the following operations:
a. Tire repair operations, provided the label of the adhesive states 'for tire repair only;'
b. In the production, rework, repair, or maintenance of aerospace vehicles and components;
c. In the manufacture of medical equipment;
d. Operations that are exclusively covered by Department of Defense military technical
specifications and standards and performed by a Department of Defense contractor and/or on site
at installations owned and/or operated by the United States Armed Forces.
e. Plaque laminating operations in which adhesives are used to bond clear, polyester acetate laminate
to wood with lamination equipment installed prior to July 1, 1992.

186
8. These requirements do not apply to commercial and industrial operations if the total VOC emissions
from all adhesives, sealants, adhesive primers and sealant primers used at the source are less than 200
pounds per calendar year.
9. Adhesive products and sealant products shipped, supplied or sold exclusively outside of the areas
specified in R307-342-2 are exempt from these requirements.
10. These requirements shall not apply to any adhesive, sealant, adhesive primer or sealant primer
products manufactured for shipment and use outside of the counties specified R307-342-2 as long as
the manufacturer or distributor can demonstrate both that the product is intended for shipment and use
outside of the applicable counties and that the manufacturer or distributor has taken reasonable
prudent precautions to assure that the product is not distributed to the applicable counties.
11. These requirements shall not apply to the use of any adhesives, sealants, adhesive primers, sealant
primers, cleanup solvents and surface preparation solvents, provided the total volume of
noncomplying adhesives, sealants, primers, cleanup and surface preparation solvents applied facility-
wide does not exceed 55 gallons per rolling 12-month period.
[Origin: R307-342]. [R307-342]

II.B.54.a.1 Monitoring:

Records required for this permit condition will serve as monitoring.

II.B.54.a.2 Recordkeeping:

(a) For operations that are not exempt under R307-342-3, the permittee shall maintain records
demonstrating compliance, including:
i. A list of each adhesive, sealant, adhesive primer, sealant primer cleanup solvent and
surface preparation solvent in use and in storage;
ii. A material data sheet for each adhesive, sealant, adhesive primer, sealant primer, cleanup
solvent and surface preparation solvent;
iii. A list of catalysts, reducers or other components used and the mix ratio;
iv. The VOC content or vapor pressure, as applied; and
v. The monthly volume of each adhesive, sealant, adhesive primer, sealant primer cleanup
solvent and surface preparation solvent used.
(b) If an exemption is claimed pursuant to R307-342-3 the permittee shall record and maintain
operational records sufficient to demonstrate compliance. (R307-342-3(7))

Records shall be maintained in accordance with Provision I.S.1 of this permit.

II.B.54.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB does not sell, supply or offer for sale any VOC containing adhesives
or sealants listed in Table 1 in this condition. This condition applies because HAFB used
448 lbs of applicable coatings in a 12-month period (exemption limit is < 200 lbs/Cal yr ). All
VOCs are screened by the EESOH Authorization Process prior to being accepted or used
on HAFB. The EESOH Authorization Process follows the VOC limits listed in Table 1 of
this condition.

II.B.55 Conditions on Architectural Coatings (Unit #69)

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II.B.55.a Condition:

1. Except as provided in R307-361-4, the permittee shall not supply or apply within the counties in
R307-361-2 any architectural coating with a VOC content in excess of the corresponding limit
specified in Table 1.
TABLE 1
VOC Content Limit for Architectural and Industrial Maintenance Coatings
(Limits are expressed as VOC content, thinned to the manufacturer's maximum thinning recommendation,
excluding any colorant added to tint bases.)

COATING CATEGORY VOC Content Limit
(grams/liter)
Flat coatings 50
Non-flat coatings 100
Non-flat/high-gloss coatings 150
Specialty Coatings
Aluminum roofing 450
Basement Specialty Coatings 400
Bituminous Specialty Coatings 400
Bituminous roof coatings 270
Bituminous roof primers 350
Bond beakers 350
Calcimine recoaters 475
Concrete curing compounds 350
Concrete/masonry sealer 100
Concrete surface retarders 780
Conjugated oil varnish 450
Conversion varnish 725
Driveway sealers 50
Dry fog coatings 150
Faux finishing coatings 350
Fire resistive coatings 350
Floor coatings 100
Form-release compounds 250
Graphic arts coatings (sign paints) 500
High temperature coatings 420
Impacted Immersion Coatings 780
Industrial maintenance coatings 250
Low solids coatings 120
Magnesite cement coatings 450
Mastic texture coatings 100
Metallic pigmented coatings 500
Multi-color coatings 250
Nuclear coatings 450
Pre-treatment wash primers 420
Primers, sealers, and undercoaters 100
Reactive penetrating sealer 350
Reactive penetrating carbonate stone sealer 500
Recycled coatings 250
Roof coatings 250
Rust preventative coatings 250

188
Shellacs:
Clear 730
Opaque 550
Specialty primers, sealers, and undercoaters 100
Stains 250
Stone consolidant 450
Swimming pool coatings 340
Thermoplastic rubber coatings and mastic 550
Traffic marking coatings 100
Tub and tile refinish 420
Waterproofing membranes 250
Wood coating 275
Wood Preservatives 350
Zinc-Rich Primer 340

2. If a coating is recommended for use in more than one of the specialty coating categories listed in
Table 1, the most restrictive (lowest) VOC content limit shall apply.
a. This requirement applies to usage recommendations that appear anywhere on the coating
container, anywhere on any label or sticker affixed to the container, or in any sales, advertising, or
technical literature supplied by a manufacturer or anyone acting on their behalf.
b. Paragraph 2 (R307-361-5(2)) does not apply to the following coating categories:
(i) Aluminum roof coatings
(ii) Bituminous roof primers
(iii) High temperature coatings
(iv) Industrial maintenance coatings
(v) Low-solids coatings
(vi) Metallic pigmented coatings
(vii) Pretreatment wash primers
(viii) Shellacs
(ix) Specialty primers, sealers and undercoaters
(x) Wood Coatings
(xi) Wood preservatives
(xii) Zinc-rich primers
(xiii) Calcimine recoaters
(xiv) Impacted immersion coatings
(xv) Nuclear coatings
(xvi) Thermoplastic rubber coatings and mastic
(xvii) Concrete surface retarders
(xviii) Conversion varnish
3. Sell-through of coatings. A coating manufactured prior to January 1, 2015, may be supplied for up to
three years after January 1, 2015. A coating manufactured before January 1, 2015, may be applied at
any time. Paragraph 3 does not apply to any coating that does not display the date or date code
required by R307-361-6(1)(a).
4. Painting practices. All architectural coating containers used when applying the contents therein to a
surface directly from the container by pouring, siphoning, brushing, rolling, padding, ragging or other
means, shall be closed when not in use. These architectural coating containers include, but are not
limited to, drums, buckets, cans, pails, trays or other application containers. Containers of any VOC-
containing materials used for thinning and cleanup shall also be closed when not in use.
5. Thinning. The permittee shall not apply or solicit the application of any architectural coating that is
thinned to exceed the applicable VOC limit specified in Table 1.

189
6. Rust preventative coatings. The permittee shall not apply or solicit the application of any rust
preventative coating manufactured before January 1, 2015 for industrial use, unless such a rust
preventative coating complies with the industrial maintenance coating VOC limit specified in Table 1.
7. Coatings not listed in Table 1. For any coating that does not meet any of the definitions for the
specialty coatings categories listed in Table 1, the VOC content limit shall be determined by
classifying the coating as a flat, non-flat, or non-flat/high gloss coating, based on its gloss, as defined
in R307-361-3 and the corresponding flat, non-flat, or non-flat/high gloss coating VOC limit in Table
1 shall apply.
8. The following coatings are exempt from the requirements of this condition (R307-361).
a. Any architectural coating that is supplied, sold, offered for sale, or manufactured for use outside
of the counties in R307-361-2 or for shipment to other manufacturers for reformulation or
repackaging.
b. Any aerosol coating product.
c. Any architectural coating that is sold in a container with a volume of one liter (1.057 quarts) or
less, including kits containing containers of different colors, types or categories of coatings and
two component products and including multiple containers of one liter or less that are packaged
and shipped together with no intent or requirement to ultimately be sold as one unit.
(i) The exemption in paragraph 8.c (R307-361-4(3)) does not include bundling of containers one
liter or less, which are sold together as a unit with the intent or requirement that they be
combined into one container.
(ii) The exemption in paragraph 8.c (R307-361-4(3)) does not include packaging from which the
coating cannot be applied. This exemption does include multiple containers of one liter or
less that are packaged and shipped together with no intent or requirement to ultimately sell as
one unit.
9. The requirements of Table 1 do not apply to operations that are exclusively covered by Department of
Defense military technical data and performed by a Department of Defense contractor and/or on site at
installations owned and/or operated by the United States Armed Forces.
[Origin: R307-361]. [R307-361]

II.B.55.a.1 Monitoring:

The permittee shall use the following test methods.
(a) Determination of VOC content.
(i) For the purpose of determining compliance with the VOC content limits in Table 1, the
VOC content of a coating shall be calculated by following the appropriate formula
found in the definitions of VOC actual, VOC content, and VOC regulatory found in
R307-361-3.
(ii) The VOC content of a tint base shall be determined without colorant that is added after
the tint base is manufactured.
(iii) If the manufacturer does not recommend thinning, the VOC content shall be calculated
for the product as supplied.
(iv) If the manufacturer recommends thinning, the VOC content shall be calculated
including the maximum amount of thinning solvent recommended by the manufacturer.
(v) If the coating is a multi-component product, the VOC content shall be calculated as
mixed or catalyzed.
(vi) If the coating contains silanes, siloxanes, or other ingredients that generate ethanol or
other VOC during the curing process, the VOC content shall include the VOCs emitted
during curing.

190
II.B.55.a.2 Recordkeeping:

Records demonstrating compliance with this condition shall be maintained in accordance with
Provision I.S.1 of this permit.

II.B.55.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – HAFB does not supply or apply any VOC containing architectural coatings
listed in Table 1 in this condition. All VOCs are screened by the EESOH Authorization
Process prior to being accepted or used on HAFB. The EESOH Authorization Process
follows the VOC limits listed in Table 1 of this condition.

II.B.56 Conditions on SIP Section IX, Part H Boilers (Unit #71)

II.B.56.a Condition: [State-only Requirement]

i. The combined NOx emissions from all boilers greater than or equal to 5 MMBtu/hr shall not exceed 95
lb/hr. This limit shall not apply during periods of curtailment.
ii. No later than December 31, 2024, no boiler with a capacity greater than 30 MMBtu/hr and with a
manufacture date older than January 1, 1989 shall be operating on base.
[Origin: Utah SIP IX.H.12.q]. [SIP Section IX.H.12.q]

II.B.56.a.1 Monitoring:

By the 28th of each month, the permittee shall calculate the NOx lb/hr emission total for the
previous month. Calculations shall use the rated capacity of each affected boiler, heating value of
the fuel, manufacturer data, AP-42 emission factors, or other emission factors and conversion
factors acceptable to the Director, to give the results in the specified units of the emission
limitation. Records required for this permit condition will also serve as monitoring.

II.B.56.a.2 Recordkeeping:

Records of NOx calculations and documentation of boiler operational status shall be maintained in
accordance with Provision I.S.1 of this permit.

II.B.56.a.3 Reporting:

There are no additional reporting requirements for this provision except those specified in Section
I of this permit.

Status: In compliance – HAFB uses the rated capacity of boilers to confirm that the limit is not
exceeded for boilers under 30 MMBtu/hr. A SIP limit report shows NOx emissions to be
58.25 lbs/hr. Item ii above is currently a work in progress, to date.

191
II.B.57 Conditions on Firefighting Training Facility (Unit #72)

II.B.57.a Condition:

The following fuel and material consumption limits shall not be exceeded:
i. 30,000 gallons propane per rolling 12-month period
ii. 18,000 pounds class A fire materials (wood, paper) per rolling 12-month period
iii. Eight automobiles per rolling 12-month period
iv. 20 gallons liquid smoke per rolling 12-month period
[Origin: DAQE-AN101210272-20]. [R307-401-8]

II.B.57.a.1 Monitoring:

Compliance shall be demonstrated for each fuel and material consumption limit. By the 30th day
of each month (or the 28th for February), the permittee shall calculate a 12-month rolling total for
each fuel and material using data from the previous 12 months.

II.B.57.a.2 Recordkeeping:

Records of the quantity of fuels and materials used shall be kept for all periods the firefighting
training facility is in use. The 12-month rolling totals shall be recorded monthly. Records can be
in either electronic or written form and shall be maintained in accordance with Provision I.S.1 of
this permit.

II.B.57.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – The firefighting training tower has recently been constructed and is
currently not in operation. Firefighting fuel and material consumption as of July 31, 2024:

Fuel /Material Permit Limit Rolling 12-Month Period
Propane 30,000 (Gallons) 8,125 Gallons
Class A Fire Material (Wood &
Paper)
18,000 (lbs) 2,120 lbs
Automobiles 8 (Autos) 0.0 Autos
Liquid Smoke 20 (Gallons) 0.0 Gallons

II.B.58 Conditions on Non-destructive Inspection (NDI) Process (Unit #73)

II.B.58.a Condition:

i. The following material consumption limits shall not be exceeded:
(a) 760 gallons penetrant per rolling 12-month period
(b) 424 gallons emulsifier per rolling 12-month period
ii. The permittee shall close the spray enclosure for penetrant operations when in automated-spray mode
use.
[Origin: DAQE-AN101210275-21]. [R307-401-8]

192
II.B.58.a.1 Monitoring:

Compliance shall be demonstrated for each material consumption limit. By the 30th day of each
month (or the 28th for February), the permittee shall calculate a 12-month rolling total for each
material using data from the previous 12 months. Records required for this permit condition will
also serve as monitoring.

II.B.58.a.2 Recordkeeping:

Records of the quantity of materials used shall be kept for all periods the NDI process is in use.
The 12-month rolling totals shall be recorded monthly for each material consumption limit. The
permittee shall keep records demonstrating the spray enclosure for penetrant operations is closed
when in automated-spray mode use. Records can be in either electronic or written form and shall
be maintained in accordance with Provision I.S.1 of this permit.

II.B.58.a.3 Reporting:

There are no reporting requirements for this provision except those specified in Section I of this
permit.

Status: In compliance – Material consumed in the Non-destructive Inspection (NDI) Process as of July 31,
2024:

Material Permit Limit
(Gallons)
Rolling 12-Month Period (Gallons)
Penetrant 760 96.76
Emulsifier 424 70.65

II.C Emissions Trading
(R307-415-6a(10))

Not applicable to this source.

II.D Alternative Operating Scenarios.
(R307-415-6a(9))

Not applicable to this source.

SECTION III: PERMIT SHIELD

A permit shield was not granted for any specific requirements.

SECTION IV: ACID RAIN PROVISION
This source is not subject to Title IV. This section is not applicable.

193
EMISISON INVENTORY: HAFB submitted their 2023 Annual Emission Inventory on April 12,
2024.

PREVIOUS ENFORCEMENT
ACTIONS: None in the past five years

COMPLIANCE STATUS &
RECOMMENDATIONS: HAFB was in compliance with the conditions of Title V Operating
Permit 1100007004, dated June 30, 2022, and revised June 30, 2022.
At time of the inspection.

HPV STATUS: N/A

COMPLIANCE ASSISTANCE: None

RECOMMENDATION FOR
NEXT INSPECTION: Contact Erik Dettermaier prior to the inspection, by sending him an
email with a list of HAFB operations you would like to observe. Erik
is not available for the inspection the last week of September. Inspect
as usual.

ATTACHMENT: VEO Form
Correspondence

10/31/23, 10:17 AM State of Utah Mail - Fwd: NOTIFICATION: Hill AFB boiler NG interruption and diesel fuel usage
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1781275645553055376&simpl=msg-f:17812756455530553…1/2
Joe Rockwell <[e-mail]>
Fwd: NOTIFICATION: Hill AFB boiler NG interruption and diesel fuel usage
2 messages
Harold Burge <[e-mail]>Tue, Oct 31, 2023 at 6:53 AM
To: Joe Rockwell <[e-mail]>
FYI
---------- Forwarded message ---------
From: Cindy Beem <[e-mail]>
Date: Mon, Oct 30, 2023 at 12:39 PM
Subject: Fwd: NOTIFICATION: Hill AFB boiler NG interruption and diesel fuel usage
To: Harold Burge <[e-mail]>
Hi Harold: Would you please forward this notification to the HAFB (main base) inspector? And, can you
tell me who that is, so I can tell Erik?
Thanks,
Cindy Beem
Environmental Scientist | Division of Air Quality
P: [phone]
Emails to and from this email address may be considered public records and thus
subject to Utah GRAMA requirements.
---------- Forwarded message ---------
From: DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA <[e-mail]>
Date: Mon, Oct 30, 2023 at 7:43 AM
Subject: NOTIFICATION: Hill AFB boiler NG interruption and diesel fuel usage
To: Cindy Beem ([e-mail]) <[e-mail]>
Good Morning Cindy,
We had a natural gas supply interruption at Hill on Saturday 28 October due to a mechanical failure in the supply system
that lasted for a couple hours (see attached). To meet our 48 hr notification requirement, I am sending this electronically,
however I intend to follow up with a wet signature hand delivered letter today.
Thank you,

Erik

Erik Dettenmaier, Ph.D.
Lead Engineer/ Hill AFB Air Quality Program Manager
801-777-0888 (com)
10/31/23, 10:17 AM State of Utah Mail - Fwd: NOTIFICATION: Hill AFB boiler NG interruption and diesel fuel usage
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1781275645553055376&simpl=msg-f:17812756455530553…2/2
385-368-1042 (mobile)
75CEG/CEIE, Hill AFB, UT 84056-5003

Notification to UDAQ_Curtailment of Natural Gas Boilers Burning Fuel Oil.pdf
60K
Joe Rockwell <[e-mail]>Tue, Oct 31, 2023 at 10:17 AM
To: Harold Burge <[e-mail]>
Thanks Harold.
Joe Rockwell | Environmental Scientist
Phone: [phone]

195 North 1950 West, Salt Lake City, UT 84116

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
[Quoted text hidden]
3/15/24, 1:37 PM State of Utah Mail - OUA Passive Soil Vapor Meeting - NEHSAP 5G flow diagram
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1793354383002554423&simpl=msg-f:17933543830025544…1/2
Joe Rockwell <[e-mail]>
OUA Passive Soil Vapor Meeting - NEHSAP 5G flow diagram
2 messages
DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA <[e-mail]>Tue, Mar 12, 2024 at 2:40 PM
To: "[e-mail]" <[e-mail]>, "[e-mail]" <[e-mail]>, "[e-mail]"
<[e-mail]>
Cc: "MCNEILL, JULIE A CIV USAF AFMC AFCEC/CZOM" <[e-mail]>
Joe, Daniel and Craig,

Thank you for participating in the discussion on the OUA Passive Soil Venting process.
As promised attached is a flow diagram I developed to help me understand and follow the logic of the Site Remediation
NESHAP subpart GGGGG.

Questions welcome,
Erik

Erik Dettenmaier, Ph.D.
Lead Engineer/ Hill AFB Air Quality Program Manager
801-777-0888 (com)
385-368-1042 (mobile)
75CEG/CEIE, Hill AFB, UT 84056-5003

GGGGG Flow.pdf
211K
Joe Rockwell <[e-mail]>Tue, Mar 12, 2024 at 2:44 PM
To: "DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA" <[e-mail]>
Thank you Erik.
Joe Rockwell | Environmental Scientist
Phone: [phone]

195 North 1950 West, Salt Lake City, UT 84116
3/15/24, 1:37 PM State of Utah Mail - OUA Passive Soil Vapor Meeting - NEHSAP 5G flow diagram
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1793354383002554423&simpl=msg-f:17933543830025544…2/2

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
[Quoted text hidden]
Joe Rockwell <[e-mail]>
Hill AFB Rental Boiler Plant Breakdown - R307-107 Reporting
5 messages
DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA <[e-mail]>Thu, Apr 11, 2024 at 11:23
AM
To: "[e-mail]" <[e-mail]>
Dear Director -

In accordance with R307-107-1(a), Hill Air Force Base is subming this email noficaon of a breakdown of a
rental boiler permied via Approval Leer DAQE-GN101210289-23. The boiler experienced a mechanical
failure of the flue gas recirculaon valve at 6:00 pm on 4/10/24. A detailed wrien descripon of the
circumstance of the incident as described in R307-107-2, including a correcve program directed at
prevenng future such incidents, will be submied within 14 days of the onset of the breakdown.

Please feel free to contact me with any quesons or if you would like to discuss this issue further.

V/R
Erik

Erik Deenmaier, Ph.D.
Lead Engineer/ Hill AFB Air Quality Program Manager
801-777-0888 (com)
385-368-1042 (mobile)
75CEG/CEIE, Hill AFB, UT 84056-5003

Joe Rockwell <[e-mail]>Thu, Apr 25, 2024 at 4:54 PM
To: "DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA" <[e-mail]>
Erik -
Just wondering when the incident report, regarding the mechanical failure of the rental boiler, was submitted?
Thank You,
Joe Rockwell | Environmental Scientist
Phone: [phone]
4/26/24, 5:02 PM State of Utah Mail - Hill AFB Rental Boiler Plant Breakdown - R307-107 Reporting
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1796059914109212391&simpl=msg-f:17960599141092123…1/3

195 North 1950 West, Salt Lake City, UT 84116

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
[Quoted text hidden]
DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA <[e-mail]>Thu, Apr 25, 2024 at 5:16 PM
To: Joe Rockwell <[e-mail]>
Joe,
The unit was repaired the morning of the 12th and the mandatory follow up letter was hand delivered on Apr 18th (see
attached for details).
Best,
[Quoted text hidden]
Rental Boiler Breakdown_stamped.pdf
1900K
Joe Rockwell <[e-mail]>Thu, Apr 25, 2024 at 5:23 PM
To: "DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA" <[e-mail]>
Thank You,
Joe Rockwell | Environmental Scientist
Phone: [phone]

195 North 1950 West, Salt Lake City, UT 84116

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
[Quoted text hidden]
Joe Rockwell <[e-mail]>Thu, Apr 25, 2024 at 6:29 PM
To: "DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA" <[e-mail]>
Thank You.
Joe Rockwell | Environmental Scientist
Phone: [phone]
4/26/24, 5:02 PM State of Utah Mail - Hill AFB Rental Boiler Plant Breakdown - R307-107 Reporting
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1796059914109212391&simpl=msg-f:17960599141092123…2/3

195 North 1950 West, Salt Lake City, UT 84116

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
[Quoted text hidden]
4/26/24, 5:02 PM State of Utah Mail - Hill AFB Rental Boiler Plant Breakdown - R307-107 Reporting
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1796059914109212391&simpl=msg-f:17960599141092123…3/3
Joe Rockwell <[e-mail]>
Fwd: Hill AFB Rental Boilers Method 9 Testing Date Updates
2 messages
Harold Burge <[e-mail]>Mon, Jul 8, 2024 at 2:40 PM
To: Joe Rockwell <[e-mail]>
FYI
---------- Forwarded message ---------
From: DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA <[e-mail]>
Date: Mon, Jul 8, 2024 at 1:17 PM
Subject: Hill AFB Rental Boilers Method 9 Testing Date Updates
To: Harold Burge <[e-mail]>
Mr. Burge,
Hill AFB is commissioning three Victor Energy, 99.8 MMBtu/hr dual fuel rental boilers, under approval letter DAQE-
GN101210293-24. The boilers are subject to an opacity standard under 40 CFR 60.43c(c) when firing fuel oil. An initial
performance test for opacity is required by 40 CFR 60.45c to demonstrate compliance with established limits via visual
opacity determination in accordance with 40 CFR 60, appendix A, Method 9.

The boilers were scheduled to be started up individually for testing and commissioning while combusting fuel oil beginning
08 July 2024. Delays in commissioning the rental boilers have pushed the anticipated Method 9 testing date to begin
either 10 July 2024 or 11 July 2024.

V/R
Erik

Erik Deenmaier, Ph.D.
Lead Engineer/ Hill AFB Air Quality Program Manager
801-777-0888 (com)
385-368-1042 (mobile)
75CEG/CEIE, Hill AFB, UT 84056-5003

Joe Rockwell <[e-mail]>Tue, Jul 9, 2024 at 9:45 AM
To: Harold Burge <[e-mail]>
Thanks Harold.
Joe Rockwell | Environmental Scientist
Phone: [phone]
7/9/24, 10:02 AM State of Utah Mail - Fwd: Hill AFB Rental Boilers Method 9 Testing Date Updates
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1804044882086790012&simpl=msg-f:18040448820867900…1/2

195 North 1950 West, Salt Lake City, UT 84116

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
[Quoted text hidden]
7/9/24, 10:02 AM State of Utah Mail - Fwd: Hill AFB Rental Boilers Method 9 Testing Date Updates
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1804044882086790012&simpl=msg-f:18040448820867900…2/2
Joe Rockwell <[e-mail]>
Hill AFB TVOP Condition II.B.29.c Deviation letter
2 messages
DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA <[e-mail]>Tue, Sep 10, 2024 at 1:43 PM
To: "[e-mail]" <[e-mail]>
Joe,
Please see attached deviation letter for Hill AFB.

V/R
Erik

Erik Deenmaier, Ph.D.
Lead Engineer/ Hill AFB Air Quality Program Manager
801-777-0888 (com)
385-368-1042 (mobile)
75CEG/CEIE, Hill AFB, UT 84056-5003
309 AMXG Open Container Deviation 30 June 2023_NA_Notifications_Deviation_Historic_Final_
20230630_2165.pdf.pdf
610K
Joe Rockwell <[e-mail]>Tue, Sep 10, 2024 at 10:05 PM
To: "DETTENMAIER, ERIK M CIV USAF AFMC 75 CEG/CEIEA" <[e-mail]>
Thanks Eric,
Joe Rockwell | Environmental Scientist
Phone: [phone]

195 North 1950 West, Salt Lake City, UT 84116

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
[Quoted text hidden]
10/24/24, 9:23 AM State of Utah Mail - Hill AFB TVOP Condition II.B.29.c Deviation letter
https://mail.google.com/mail/u/0/?ik=391b7b8965&view=pt&search=all&permthid=thread-f:1809839463993135676&simpl=msg-f:18098394639931356…1/1