HomeMy WebLinkAboutDERR-2025-005044Site Management Plan – Parcel A
Centro Civico Mexicano – Parcel A
155 South 600 West
Salt Lake City, Utah
VCP Site #C101
March 29, 2022
Terracon Project No. AL157355
Prepared for:
Centro Civico Housing Company, LLC
and Centro Civico Mexicano
Salt Lake City, Utah
Prepared by:
Terracon Consultants, Inc.
Midvale, Utah
Terracon Consultants Inc. 6949 South High Tech Drive Midvale, Utah 84047
P [801] 545-8500 F [801] 545-8600 terracon.com
March 29, 2022
Centro Civico Mexicano
155 South 600 West
Salt Lake City, Utah 84101
Attn: Ms. Brandy Farmer
P: 801-792-7131
E:brandyfarm@gmail.com
Re: Site Management Plan – Parcel A; VCP Site #101
Centro Civico Mexicano Parcel A (Parcel No. 15-01-108-036)
155 South 600 West, Salt Lake City, Utah
Terracon Project No. AL157355
Dear Ms. Farmer:
Terracon is pleased to provide this Site Management Plan pertaining to the southern portion of
the Centro Civico Mexicano property referred to as “Parcel A”, Salt Lake County Assessor’s
Parcel No. 15-01-108-036.
Please contact our office at (801) 545-8500 if you have questions regarding this information or if
we can provide any other services.
Sincerely,
Terracon Consultants, Inc.
Amy Austin Bob Roth, P.E.
Group Manager, Environmental Services Authorized Project Reviewer
Site Management Plan – Parcel A
Centro Civico Mexicano (VCP Site #C101)■ Parcel No. 15-01-108-036
March 29, 2022 ■Terracon Project No. AL157355
Responsive ■Resourceful ■Reliable 1
Table of Contents
INTRODUCTION ........................................................................................................................ 2
REMEDIAL ACTION ................................................................................................................... 2
SITE MANAGEMENT ................................................................................................................. 2
3.1 Environmental Covenant................................................................................................. 3
3.2 Institutional Controls ....................................................................................................... 3
3.3 Engineering Controls ...................................................................................................... 3
3.4 Soil Disturbance Requirements ....................................................................................... 4
3.5 Worker Health and Safety Requirements ........................................................................ 4
3.6 Contingency Plan ........................................................................................................... 5
3.7 Notification ..................................................................................................................... 5
Appendices
Appendix A: Exhibits
Exhibit 1: Topographic Map
Exhibit 2: Project Boundaries
Appendix B: Alta Survey with Legal Description
Appendix C: Sub-Slab Depressurization System Design
Appendix D: Annual Land Use Certification Form
Site Management Plan – Parcel A
Centro Civico Mexicano (VCP Site #C101)■ Parcel No. 15-01-108-036
March 29, 2022 ■Terracon Project No. AL157355
Responsive ■Resourceful ■Reliable 2
INTRODUCTION
Centro Civico Mexicano (CCM) completed a remedial action under the Utah Department of
Environmental Quality (UDEQ), Division of Environmental Response and Remediation’s
(DERR’s) Voluntary Cleanup Program (VCP) on Parcel A (Salt Lake County Assessor Parcel No.
15-01-108-036) of the CCM site (Exhibit 1 and Exhibit 2). Terracon developed an Analysis of
Brownfield Cleanup Alternatives [(ABCA); dated March 15, 2021] for the site. The Recommended
Cleanup Alternative selected as most efficient, cost effective, and reliable was Maintenance of
Hardscape and a Sub-slab Depressurization System (SSDS).Based on the selected cleanup
strategy, a Remedial Action Plan (RAP; Terracon, June 2, 2021) was developed for the site and
approved by the DERR on July 27, 2021.
The purpose of this Site Management Plan (SMP) is to maintain the protectiveness of the remedial
action. This SMP applies specifically to Parcel A, which is addressed as 155 South 600 West,
Salt Lake City, Utah, and has also been referred to as the “southern” parcel in previous documents
for the CCM VCP site. Parcel A is explicitly defined in the Alta Survey provided in Appendix B.
An Environmental Covenant (EC) and this SMP will be incorporated into the final Certificate of
Completion issued by the UDEQ. This SMP discusses specific details and procedures related to
the Activity and Use Limitations and Engineering and Institutional Controls imposed upon the
Property through the recorded EC. The SMP will be implemented by CCM. The SMP may be
amended from time to time with the acceptance of the UDEQ. Site access and reimbursement of
UDEQ oversight costs under this SMP are addressed in the EC.
REMEDIAL ACTION
To protect human health, the selected remedy was to maintain the current asphalt covering of the
site to prevent contact with impacted soils, and to install a vapor mitigation system (VMS)
consisting of a sub-slab depressurization system (SSDS) within the building, designed to remove
contaminant vapors from beneath the building footprint and prevent vapor intrusion of the
contaminants. The SSDS was installed in October of 2021. A copy of the SSDS Design and
Specifications is included in Appendix C.
SITE MANAGEMENT
At this time, redevelopment of Parcel A does not include excavation of soil or soil disturbance, or
demolition of the current structure.
Site Management Plan – Parcel A
Centro Civico Mexicano (VCP Site #C101)■ Parcel No. 15-01-108-036
March 29, 2022 ■Terracon Project No. AL157355
Responsive ■Resourceful ■Reliable 3
3.1 Environmental Covenant
CCM has prepared an Environmental Covenant that outlines the continuing obligations and
limitations associated with impacted soils remaining on the site and the maintenance and
operation of the SSDS. The Environmental Covenant will be recorded on the Site’s title.
3.2 Institutional Controls
The following land use limitations are imposed upon the Site:
n Land use will remain commercial (no residential land use) at and below ground level.
n Uses that include managed care facilities, hospitals or any type of business that would
require a caretaker to reside on the facility are not approved as future uses on the
ground floor or below.
n Commercial uses that would expose children to hazardous constituents at the site for
extended periods of time (such as day care, school, and playground/play area
facilities) are also not approved at ground level or below.
n Residential land use is prohibited below grade or at the ground level of the Property.
n Groundwater will not be accessed for drinking water, irrigation, or bathing purposes.
CCM will certify that land use and development restrictions are being followed on an annual basis.
The Annual Land Use Certification Form to be submitted to UDEQ is included as Appendix D.
3.3 Engineering Controls
The following engineering controls are applied to the site to prevent exposure to environmental
impacts:
n A vapor intrusion mitigation system has been installed at the site in the form of a sub-
slab depressurization system (SSDS). Operation of the system will be documented
quarterly by a visual inspection of the exterior gauges and the alarm system.
n The remedy for exposure to impacted soils will be to maintain a hardscape surface
over the Site to prevent contact with the soils. This will include a hardscape surface
completion and building footprint. The asphalt surface completion covering the site
must remain in a condition such that soils at the site are not exposed. The condition of
the asphalt surface will be inspected on a quarterly basis.
The Owner will inform any contractors performing maintenance or building renovation/demolition
of the presence of the SSDS prior to initiating site work. If repair or maintenance of the current
asphalt hardscape is necessary, CCM will submit notice to UDEQ and provide detail as the
Site Management Plan – Parcel A
Centro Civico Mexicano (VCP Site #C101)■ Parcel No. 15-01-108-036
March 29, 2022 ■Terracon Project No. AL157355
Responsive ■Resourceful ■Reliable 4
specification of the repair. If hardscape removal or soil disturbance is required, the guidelines
detailed in Section 3.4 will be followed.
CCM will certify that the engineering controls installed at the site are intact and operational on a
quarterly basis. The Quarterly Engineering Controls Inspection Form to be submitted to UDEQ
is included as Appendix D.
CCM may choose to reevaluate soil gas conditions in the future after the system has operated for
at least one year and then petition to discontinue operation of the SSDS system which is an option
if soil gas concentrations fall and stay below their respective vapor intrusion screening levels
(VISLs). If CCM chooses to petition to discontinue operating the SSDS system, CCM will prepare
a work plan proposing sampling to evaluate soil gas conditions and potential rebound of
contamination for UDEQ review and approval.
3.4 Soil Disturbance Requirements
As COCs remain in soils at the Site above unrestricted land use regulatory screening levels, any
excavation of soils, building demolition or redesign, or change in land use anywhere on the Site
will require that a Work Plan that includes a Quality Assurance Project Plan (QAPP) be submitted
to UDEQ for review and approval prior to implementing work at the Site.
Construction activities and other unforeseen events or disturbances that may result in
disturbances to impacted soil will require CCM to submit a work plan for approval by the UDEQ
to assess risks to human health and the environment and to properly manage the excavated
materials. The mitigation plan shall include construction worker notification and safety measures
and appropriate soil waste characterization and disposal requirements, if required.
Impacted soils to be transported off-site may require characterization by sampling and laboratory
analysis prior to approval for off-site disposal. Characterization of the soils will determine the
proper disposal methods. In all cases, soil must be disposed of in a lawful manner consistent
with all pertinent federal, state, and local environmental laws, and documentation must be
provided to the UDEQ. In the event that sampling activities are required to be conducted, all
sampling must be performed by qualified personnel. Samples must be analyzed by state-certified
laboratories and quality assurance procedures in the Centro Civico Mexicano Quality Assurance
Project Plan will be followed as appropriate.
3.5 Worker Health and Safety Requirements
The Owner will inform the UDEQ of any excavation of soils or sub-grade building
renovation/demolition prior to initiating site work. The Owner shall inform any workers conducting
sub-grade work on the Site of the presence of potential soil impacts that could be encountered at
Site Management Plan – Parcel A
Centro Civico Mexicano (VCP Site #C101)■ Parcel No. 15-01-108-036
March 29, 2022 ■Terracon Project No. AL157355
Responsive ■Resourceful ■Reliable 5
the Site. Contractors that could come into contact with soil impacts will prepare a Health and
Safety Plan that specifically addresses the tasks and potential contaminants that could be
encountered and any appropriate procedures and personal protective equipment (PPE) that are
required. It will be the Contractor’s responsibility to ensure worker protection and training meet
the Occupational Safety and Health Administration’s (OSHA’s) requirements.
3.6 Contingency Plan
If unforeseen events or unexpected contamination are encountered, UDEQ will be notified and a
contingency plan will be developed in consultation with UDEQ to address the situation.
3.7 Notification
CCM shall notify UDEQ either by phone at (801) 536-4100 or in writing at the address noted below
of any excavation into impacted soils. In addition to the SMP requirements, site activities must
comply with appropriate permitting authorities.
Project Manager, VCP ID# C101
Voluntary Cleanup/Brownfields Section
Division of Environmental Response and Remediation
Utah Department of Environmental Quality
P.O. Box 144840
Salt Lake City, Utah 84114-4840
(801) 536-4100
Appendix A
Exhibits
Appendix B
Alta Survey with Legal Description
('$
Appendix C
Sub-slab Depressurization System Design (SSDS)
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2.0 GENERAL REQUIREMENTS
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4.0 QUALITY ASSURANCE
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5ES321S,%,/,7< 2) 7+E SS'S S8%C2175$C725 72 127,)< 7+E 2:1E5 $1' SS'S 'ES,*1E5 :,7+,1
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35,25 72 ,1S7$//$7,21 2) SS'S C20321E17S 7+E SS'S 'ES,*1E5 S+$// ,1S3EC7 $1' $33529E 7+E
C20321E17S ,1 $CC25'$1CE :,7+ 7+ESE 3/$1S $1' S3EC,),C$7,21S ,1S7$//$7,21 2) SS'S
C20321E17S S+$// 127 352CEE' :,7+287 :5,77E1 $33529$/ %< 7+E SS'S 'ES,*1E5
$'',7,21$//< C2175$C725 S+$// C21'8C7 ,1S3EC7,21S $S C,7E' +E5E,1
5.0 SUBMITTALS
7+E SS'S S8%C2175$C725 S+$// S8%0,7 7+E )2//2:,1* ,1)250$7,21 )25 0$-25 SS'S
C20321E17S 72 7+E SS'S 'ES,*1E5 )25 5E9,E:$33529$/
·SC+ 39C 3,3E )25 3,3,1* )520 9E3s 72 %/2:E5 0$1,)2/'
·SS'S E48,30E17 9$C880 %/2:E5 02725 *$8*ES $1' 27+E5 ,1S7580E17$7,21
$7 7+E C203/E7,21 2) ,1S7$//$7,21 7+E SS'S S8%C2175$C725 S+$// S8%0,7 $ /E77E5 72 7+E
SS'S 'ES,*1E5 $1' 72 7+E 2:1E5 CE57,)<,1* 7+$7 SS'S ,1S7$//$7,21 :$S C203/E7E' ,1
$CC25'$1CE :,7+ 7+E 352-EC7 3/$1S $1' S3EC,),C$7,21S $S :E// $S 0$18)$C785E5
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6.0 WARRANTY
7E55$C21 5EC200E1'S 7+E 2:1E5 2%7$,1 $ :$55$17< )25 CE57$,1 C20321E17S 2) 7+E SS'S
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5E3257S *E27EC+1,C$/ 5E3257S 25 27+E5 '2C80E17$7,21 )25 5E9,E: 35,25 72 ,SS8,1* $
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7.0 JOB CONDITIONS
7+E $5E$S $'-$CE17 72 7+E SS'S C20321E17S $5E 72 %E 3527EC7E' %< 7+E SS'S
S8%C2175$C725 )25 7+E 3E5)250$1CE 2) 7+,S SC23E 2) :25. '85,1* 7+E SS'S ,1S7$//$7,21
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8.0 INSTALLATION
8.1 SSDS PIPING INSTALLATION
3,3,1* S+$// %E SC+ 39C 7+$7 C203/,ES :,7+ $S70 ' SS'S 3,3,1* S+$// %E C211EC7E' 72
3529,'E $ *$S7,*+7 SE$/ $7 $// C211EC7,21S $1' ),77,1*S $1' S+$// %E C21S758C7E' 2)
0$7E5,$/S 7+$7 C203/< :,7+ 7+E 81,)250 3/80%,1* $1' 0EC+$1,C$/ C2'ES $// -2,17S S+$// %E
7,*+7/< SE$/E' :,7+ $33529E' 0$7E5,$/S
3,3E $1' ),77,1*S S+$// S29E17 :E/'E' $1' 35E3$5E' :,7+ $ 35,0E5 3E5 $S70 ) S2/9E17
CE0E17 S+$// C21)250 72 $S70 '
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S+$// %E 8SE'
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8.2 BLOWER INSTALLATION
7+E %/2:E5S S+$// %E ,1S7$//E' $S S+2:1 +E5E,1 ,1S7$//$7,21 237,21S ,1C/8'E ,1S7$//,1* 21
287S,'E 2) %8,/',1* 21 $1 E;7E5,25 :$// ,1 $77,C 25 21 5,SE5 $%29E 7+E 522)
9.0 INSPECTIONS
7+E ,1S3EC7,21 2) $// 9$325 C21752/ 0E$S85ES S+$// %E 3E5)250E' %< 7+E SS'S 'ES,*1E5 $7
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'EE0E' 1ECESS$5< %< 7+E SS'S 'ES,*1E5
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127,CE )25 C2175$C725
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S+2:1 21 25 5E/$7E' 72 7+ESE 3/$1S S+$// C21'8C7 7+E,5
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2) 7+E 2:1E5 25 7+E 90S 'ES,*1E5
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5E48,5E0E17S 7+E $335235,$7E 3$57,ES C203$1,ES :,7+
C21)/,C7,1* '2C80E17$7,21 S+$// C21)E5 72 'E7E50,1E $
0878$//< $*5EE' 8321 S2/87,21
INDEX O) SHEETS
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
SDSS1 TITLE SHEET AND GENERAL NOTES
SDSS2 SSDS )LOOR PLAN
SDSS3 SSDS ROO) PLAN
SDSS4 CONSTRUCTION DETAILS
SDSS5 CONSTRUCTION DETAILS
PROJECT SITE LOCATION
PLANS SPECI)ICATIONS
)OR
SUBSLAB
DEPRESSURI=ATION SYSTEM
CENTRO CIVICO MEXICANO
155 SOUTH 600 WEST
SALT LA.E CITY UT 84108
TAS.S TO BE COMPLETED RECOMMENDED CONTRACTOR TRADE RESPONSIBLE )OR TAS.
*C SS'S S8% C2175$C725
*E1E5$/ C2175$C7,1*
9$325 E;75$C7,21 32,17 9E3 9E3
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Appendix D
Quarterly and Annual Inspection Forms and Photolog
Quarterly SSDS and Asphalt Inspection Form – VCP Site #101
Centro Civico Mexicano Parcel A (Parcel No. 15-01-108-036)
155 South 600 West, Salt Lake City, Utah
Quarterly Sub-slab Depressurization System Operation Inspection
A sub-slab depressurization system (SSDS) has been installed at this building. System operation checks
were installed as a way to validate the SSDS is operating in the form of three (3) audible alarms inside
the building and 3 external pressure gauges at each of the 3 blowers (see photolog). As required by the
Site Management Plan (SMP) for Parcel A (“Property”) of the Centro Civico Mexicano VCP site, I hereby
certify that I have observed the following two system operation checks:
A.Audible alarms were installed at 3 vapor extraction points of the system. The audible alarms
(please select one):
[ ] have not sounded.
; or
[ ] have sounded and been reported to the appropriate party and repaired.
; or
[ ] have sounded and have not been reported/not been repaired.
B.I have visually inspected the external pressure gauge at each of the three (3) blowers. Each
pressure gauge (please select one):
[ ] showed a vacuum of a minimum 1-inch w.c.
; or
[ ] one of more of the gauges showed a vacuum less than 1-inch. It was reported to the
appropriate party and the system has been adjusted to increase the vacuum in that vapor
extraction point (VEP).
; or
[ ] one of more of the gauges was below 1-inch w.c. It was not reported/not been repaired.
Quarterly Asphalt Surface Completion Inspection
I hereby certify that the asphalt surface completion at the site is in-tact and that no soils are exposed at
the surface of the site.
Signature Date
Name (printed)
Title Company/Affiliation
Annual Land Use Certification Form – VCP Site #101
Centro Civico Mexicano Parcel A (Parcel No. 15-01-108-036)
155 South 600 West, Salt Lake City, Utah
Annual Land Use Certification
As required by the Environmental Covenant (EC) and Site Management Plan (SMP) for Parcel A
(“Property”) of the Centro Civico Mexicano VCP site, I hereby certify that the terms and conditions of the
EC and SMP are being complied with, including:
A.Groundwater is not being used for drinking water, irrigation, or bathing purposes.
B.Land use has not changed. The property is not being used for residential purposes.
C.Since the last certification, disturbances into potentially impacted soils either (please select one):
[ ] have not occurred
; or
[ ] have been reported to DEQ and managed according to the EC and SMP.
D.Since the last certification, worker health and safety requirements either (please select one):
[ ] have been unnecessary because there has been no work in potentially impacted soils
; or
[ ] have been followed in compliance with the EC and SMP.
Signature Date
Name (printed)
Title Company/Affiliation
Centro Civico Mexicano, Parcel A
Terracon Project No. AL157355
Date PhotosTaken: November 16, 2021
Photo #1 Blower #1, located on east side on
north wall.
Photo #2 Blower #2, located on west side of
north wall.
Photo #3 Blower #3, located on south west
wall by roof access.
Photo #4 Audible alarm #1 installed on the
vent pipe in the utlity closet of the north
room.
Photo #5 Audible alarm #2 installed on the
vent pipe in the women’s bathroom.
Photo #6 Audible alarm #3 installed on the
vent pipe in the men’s bathroom.