DRC-2025-001197

299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111
[phone] ▪ Fax: [phone] ▪ www.energysolutions.com

April 2, 2025 CD-2025-062

Mr. Doug Hansen, Director
Division of Waste Management and Radiation Control
P.O. Box 144880
Salt Lake City, UT 84114-4880

Subject: Ground Water Quality Discharge Permit UGW450005: Request for Modification to
Appendix C, CQA Plan for Collection Lysimeter Construction & Collection Lysimeter
Operation, Maintenance, and Closure Plan

Dear Mr. Hansen:

In a letter dated March 5, 2025 (CD-2025-049), EnergySolutions requested Modification to
Appendix C, CQA Plan for Collection Lysimeter Construction. In accordance with Part 1.E.11 of
the Ground Water Quality Discharge Permit No. UGW450005 EnergySolutions hereby re-
submits a follow-up request for approval from the Director of the Utah Division of Waste
Management and Radiation Control for the modification of Appendix C, CQA Plan for Collection
Lysimeter Construction and Collection Lysimeter Operation, Maintenance, and Closure Plan

The purpose of this follow-up request is to include the Collection Lysimeter Operation,
Maintenance, and Closure Plan as well as include the redline strikeout revision of Appendix C,
CQA Plan for Collection Lysimeter Construction. Enclosed please find replacement documents.
Changes to the existing requirements are minor and administrative. The purpose of the changes
were simply made due to differences in personnel and forms no longer in use.

Should you have any questions regarding this submission please feel free to contact Nick Clarke
or myself at [phone].

Sincerely,

For,
Mathew R Schon
Manager, Groundwater and Environmental Program

I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance
with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry
of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations.
Digitally signed by Nick Clarke DN: dc=com, dc=energysolutions, ou=North
America, ou=Users, ou=CLUT, cn=Nick Clarke, email=[e-mail] Date: 2025.04.03 08:34:50 -06'00'

Collection Lysimeter Operation, Maintenance, and Closure Plan
April 2, 2025Ju ne 27, 2011
1.0 GENERAL

This plan outlines the procedures for the operation, maintenance, and closure of the
collection lysimeters as required by Part 1.E.11 of Ground Water Quality Discharge
Permit No. UG W450005 (Permit).

The primary purpose of collection lysimeters is to monitor the performance of the bottom
liner of the LLR W and Class A cells. If free liquid is detected in the collection lysimeters, it
will provide an early warning of leachate migrating toward Groundwater.

Collection lysimeters will be constructed using the plans and specifications approved by
the Utah Division of Waste Management and Radiation Control (UDWMRC)Radiation
Control ( DRC). General collection lysimeter design incorporates a 20 to 25-foot deep
manhole with a standpipe or riser just beyond the edge of a disposal cell and a collection
pan situated approximately 300 feet from the edge of waste, under the clay liner of a
disposal cell. A transfer pipe connects the collection pan to the standpipe.

2.0 OPERATION PLAN

2.1 Monitoring for Free Liquids

The standpipe in the manhole will be monitored as follows for the presence of
free liquids.

• Weekly for the first year after the date of initial waste placement over the
lysimeter pan.
• Twice per month (on approximately the 1st and 15th of the month) for the
second year after the date of initial waste placement.
• Monthly thereafter until the final cover is completed over the
collection lysimeter.
• Annually for the first 5 years after final cover construction; then
• Every other year throughout the post-closure monitoring period.

The collection lysimeter will be monitored by removing the manhole cover and
standpipe end plug. The collection lysimeter is then probed for free liquids using
an electronic water level meter. The depth to water measurement is recorded on
the Collection Lysimeter Free Liquids Monitoring fom1 form (the Form) provided
as Attachment 4 of Appendix J of the Permit if free liquids are detected.
Completed forms will be maintained at the site and made available for State
inspections as required by Part 11.H and 11.K.2 of the Permit.
EnergySolutions Clive Facility Collection Lysimeter Operation, Maintenance, and Closure Plan
.April 2, 2025lune 27,
2011
Page 2 of 4

If and when free liquids are detected in a standpipe, the DRC UDWMRC will be
notified verbally within 24 hours and in writing within 7 calendar days.
Immediately following the initial detection of free liquids, the monitoring frequency
will be increased to daily in order to assess the flow rate into the collection
lysimeter. Free liquid samples will be taken in accordance with Section 2.3 below.
Daily monitoring will continue until otherwise approved by the DirectorExecutive
Secretary. Considerations for a request to reduce monitoring frequency will include
if the flow rate has stabilized, and quarterly purging and sampling of the lysimeter
standpipe are scheduled. The free liquids monitoring frequency will then be
decreased to an appropriate monitoring interval following the Director’sExecutive
Secretary's approval.

Note: Some of the older collection lysimeters have settled since construction,
leading to isolated low spots where standing water may collect without
draining. Removal of this water to facilitate video inspections does not trigger
the increased monitoring frequency requirements.

Free liquids will not be allowed to accumulate iIn the standpipe to a level less than
12 inches below the intersection of the transfer pipe. The standpipe will be purged
of free liquids when they are detected unless a sampling event is planned, and the
volume is being allowed to accumulate to provide adequate sample volume for
analysis. Purging will be performed using a dedicated bailer or a peristaltic pump.
The volume of water removed from a collection lysimeter will be recorded on the
Fonnform. Other information required on the fForm includes the date, time,
monitoring personnel, collection lysimeter identification number, the presence of
free liquids, a depth to water measurement, the collection lysimeter total depth, and
the total volume of water removed. The formFonn must be signed and dated by
appropriate monitoring personnel and reviewed by the ManagerDirector of
Compliance and Pe1111itting Permitting or designee, prior to transferring custody to
Document Control.

Water removed from a collection lysimeter and not included in samples will be
disposed in an evaporation pond permitted under Part I.E.1 4 of the Permit. or in the
Mixed Waste evaporation tanks.

2.2 Confined Spaced Entry

Collection lysimeter manhole entry is to be made following applicable procedures as
determined by the Safety and Health Department.

Collection Lysimeter Operation, Maintenance. and Closure Plan EnergySolutions Clive Facility
April 2, 2025June 27,
2011
Page 34 of
4

2.3 Sampling of Free Liquids

Free liquid samples will be collected within 24 hours of initial detection as
specified in Part l. F.6 of the Permit. Because of the limited amount of water
expected to be in the collection lysimeters, samples for analysis will be collected
using the following priority list, if less than 34,720 milliliters (ml) are present.

Priority Parameter Sample
Volume
(ml)

1 Field Parameters - Temperature, pH, Specific Conductivity 100
2 Radiologicals - LARW Suite 23,000
3 Metals/Inorganics - LARW Suite 500
4 TDS/TSS 500
5 Major Cations and Anions 500
6 Volatile Organic Compounds (VOCs) 3 X 40
TOTAL 34,720

Any deviation from this priority list must be approved by the DirectorExecutive
Secretary. Samples will be collected using either a dedicated bailer or a peristaltic
pump.

3.0 MAINTENANCE PLAN

The inspection/maintenance procedures for the collection lysimeters will consist of a
visual inspection performed annually, starting in the year construction is completed, which
includes visually checking the leachate collection manhole and exposed piping for cracks,
end plug leaks, shitting, or other damage. The visual inspection will include a video
inspection of the transfer pipe that will be accessed from the cleanout port. The video
inspection will be recorded on magnetic or optical media and will include checking the
transfer pipe for leaking joints, penetrations in the pipe, and cracked or otherwise damaged
pi pe sections. If damaged or leaking pipes are discovered, these sections will require
repair unless otherwise approved by the DirectorExecutive Secretary.

Details of the inspection and maintenance activities will be recorded in a groundwater
field notebook containing waterproof paper that will be kept on file at Clive for at least
three years following the date of the inspection as required by Part I I.H of the Penni
tPermit. These documents shall be made available to State inspection as required by Part
11.K.2 of the Permit. Any observation of structural failure or upset that would
compromise the function or performance of the collection lysimeter system shall be

reported to the DirectorExecutive Secretary verbally within 24 hours and in writing within
7 calendar days, as required by Part I I.I of the Permit.
Collection Lysimeter Operation, Maintenance. and Closure Plan EnergySolutions Clive Facility
April 2, 2025June 27,
2011
Page 34 of
4

4.0 CLOSURE PLAN

Lysimeter closure will be performed only when one of the following criteria is met, as
approved by the DirectorExecutive Secretary:

l) Post-closure monitoring has been completed, or the
2) The Lysimeter collection system is damaged beyond repair or the
3) The Lysimeter collection system is permanently abandoned.

DRC UDWMRC will be notified at least 7 calendar days prior to lysimeter closure. Any
deviation from the following closure method will be approved by UDWMRCDRC prior to
lysimeter closure.

Lysimeter closure will be accomplished by pressure grouting using a sand, cement, and
bentonite slurry mixture. Grouting will be performed from the cleanout port back into the
transfer pipe. The volume of the slurry mixture pumped will be measured to determine the
extent of the slurry injected into the collection pan and transfer pipe.

The standpipe will then be cut off of the transfer pipe and be disposed as Class A waste. The
entire manhole shall be removed. The transfer pipe shall be cut off from the outside of the
manhole so that manhole removal does not pull it out from beneath the liner.
Radiological sampling will be performed to demonstrate that the excavated area meets the
release criteria of operating procedure CL-RS-PR-115180, Radiological SurveysRestricted
Area Release Surveys, prior to backfilling. Any soils that exceed the limits of this
procedure shall be excavated and disposed in the Class A cell. The excavated area where
the manhole was removed shall be backfilled in accordance with the LLRW and 11e.(2)
CQA/QC Manual, work element "Foundation Preparation".

CQA Plan for Collection Lysimeter
Construction
Revision 2
Authored By:
Date
Reviewed By:
Date
Approved By
Date
Approved By
Date
Electronic documents, once printed, are uncontrolled and may become outdated.
Refer to the Intraweb or the Document Control authority for the correct revision.
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CQA Plan for Collection Lysimeter Construction

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Table of Contents

Section Page

1. PURPOSE ................................................................................................................3
2. SCOPE .....................................................................................................................3
3. DEFINITIONS .........................................................................................................3
4. RESPONSIBILITIES ..............................................................................................4
5. GENERAL ...............................................................................................................5
6. PROCEDURE ..........................................................................................................6
7. REFERENCES ........................................................................................................7
8. ATTACHMENTS ....................................................................................................8
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1.0 PURPOSE
To establish the material specifications, construction specifications, quality
control and quality assurance requirements that shall be used to ensure that
construction and inspection activities of the Collection Lysimeter(s) comply with
applicable State and Federal regulations and approved design criteria.
2.0 SCOPE
This Construction Quality Assurance (CQA) Collection Lysimeter Plan applies to
all aspects of Collection Lysimeter (Lysimeter) construction activities for
EnergySolutions, Inc at the South Clive Disposal Facility. This plan addresses
responsibilities, design criteria, inspections and testing, requirements and
frequencies, documentation, and acceptance criteria associated with Earthwork,
HDPE Liner, Piping, Geotextile, and Manhole installation activities of a
lysimeter.
3.0 DEFINITIONS
Clearing and Grubbing
The removal of vegetation, debris, organic, or deleterious material from
areas to be excavated for construction of cells. Grubbing depth will
depend on the type of vegetation, debris, organic, or deleterious material
on the site.
Documentation (Document)
Any written or pictorial information describing, defining, specifying,
reporting, or certifying activities, requirements, procedures, or results.
HDPE Liner
A synthetic membrane having a water permeability less than 1X10-12
cm/sec, used to line the lysimeter sump.
Geotextile
Any permeable woven textile used with foundation, soil, rock, earth, or
any other geotechnical engineering related material as an integral part of a
man-made project, structure, or system.
Inspection Frequency
Inspection activities established in this plan are minimum requirements.
Additional inspections or tests shall be performed any time it is deemed
necessary by Quality Control, Quality Assurance SpecialistConstruction
Quality Engineer (CQE), Clive Quality Assurance Manager (CQAM), or
the Clive Facility EngineerDirector of Engineering.
Lysimeter
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A component of the LLRW embankment installed below the embankment
clay liner. It is designed to monitor liquids that may permeate the cover
system, waste column, and embankment clay liner. The collected liquid
can then be quantified and analyzed.
Quality Control
Those quality assurance activities/actions necessary to provide a means to
control and measure the characteristics of an item, process, or facility to
established requirements.
Quality Record
A completed document that furnishes evidence of the quality of items
and/or activities affecting quality. For the purpose of this plan, a
document is considered a quality assurance record when the quality related
document has been completed and validated by the Quality Control
TechnicianOfficer (QCO).
Subgrade
The soil prepared and compacted to support a structure, lysimeter or a
pavement system.
Vendor Data
Supplier-furnished data that may be required by the contractor or purchase
order; e.g.; drawings, operating and performance data, wiring diagrams,
motor data, maintenance and operation control systems and procedures,
test reports and procedures, personnel qualifications and certification,
material certifications and fabrication techniques.
Witness Point
Designated points in embankment construction where the Quality
AssuranceQCO, or the CQE and/or the Utah Division of Waste
Management and Radiation Control (UDWMRC)Radiation Control
(UDRC) shall randomly monitor, observe, inspect, review, or test the
operation.
4.0 RESPONSIBILITIES
4.1 The Clive Facility EngineerDirector of Engineering is responsible for
design, design changes, as-built reports, and the overall specification and
inspection requirements of this CQA Plan.
4.2 The Site Engineer has the overall responsibility for the construction of the
lysimeter including direction of the contractor(s) and may also work as the
Clive Facility Engineer. The Site Engineer is also responsible for any
required notifications to the Division of Radiation Control (DRC).
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4.3 The Quality Control SupervisorManager has the overall responsibility
for the implementation of the quality control inspection activities.
4.4 The Quality Assurance SpecialistConstruction Quality Engineer
(CQE) reports to the Clive Quality Assurance Manager and is responsible
for hold and witness points, and surveillance activities that address
inspections, observations, and documentation review, as applicable. The
Quality Assurance Specialist is also responsible for any required
notifications to the UDWMRC.
4.5 The Quality Control TechnicianOfficer (QCO) is responsible for
implementing and/or directing inspection activities, and review and
approval of inspection and testing records.
4.6 The Quality Control Inspector(s) are responsible for field surveillance
and adhering to the inspection and testing requirements of this project plan
and may also be known as a Quality Control Technician. These
individuals report to the Quality Control SupervisorQCO.
4.7 The Engineering Technical Assistant is responsible for maintaining the
construction quality assurance records and transmitting those records to
Document Control and may include those reporting to the Clive Facility
Engineer and/or the Quality Control Supervisor.
4.8 Document Control is responsible for maintenance of the embankment
construction quality records in accordance with CL-QA-PR-005, Quality
Assurance Records.
5.0 GENERAL
5.1 EnergySolutions, Inc. shall perform all construction inspections under the
direction the Site Engineer.
5.2 Design Changes shall be handled in accordance with CL-EN-PR-001,
Engineering Design Control.
5.3 All personnel, including the contractor, shall be trained to the
requirements of this document. All other applicable personnel
qualifications shall be performed in accordance with the CL-TN-PR-010,
General Qualification Procedure.
5.4 All measuring and test equipment shall be calibrated in accordance with
CL-QA-WI-120, Control of M&TE.
5.5 Specific design, construction, and quality requirements are identified in
the attachments to this CQA plan.
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5.6 The Clive Facility EngineerDirector of Engineering shall issue a unique
Collection Lysimeter Detail drawing, approved for construction, for each
lysimeter project. This drawing is required in addition to Drawing 0210-
01, LLRW Embankments Collection Lysimeter Details, (Attachment 8.5)
which only provides lysimeter construction details.
5.7 The contractor shall be notified of testing results that do not meet the
specifications. Failing areas shall be reworked and retested.
6.0 PROCEDURE
Note: The following can occur simultaneously.
6.1 Earthwork
6.1.1 The earthwork (excavation) for the project shall be to the lines,
grades, and dimensions established by the Approved for
Construction Project Drawings.
Earthwork for the Project encompasses excavations for the lysimeter
sump, pipe trench, and the manhole. See Attachment 8.1, Earthwork
for specifications.
6.1.2 Quality Assurance testing and inspection requirements (e.g. methods,
frequencies, acceptance criteria) for the specified design criteria are
delineated in Attachment 8.1, Earthwork Requirements.
6.2 Lysimeter Sump
6.2.1 The construction of the lysimeter sump includes the installation of
the compacted Clay layer, HDPE, Geotextile, gravel, and sand.
Note: This sump construction is also inclusive of the piping
(perforated and non-perforated) and pipe boot installation
that penetrates under and into the lysimeter sump.
6.2.2 The design, material, and construction requirements are delineated in
Attachment 8.2 Sump Requirements. The piping aspects of the sump
are defined in Attachment 8.3, Piping Requirements. Additional
details are specified in the Approved for Construction Project
Drawings.
6.2.3 The compacted clay layer shall be completely constructed and
approved prior to any excavation for the pipe trench into the sump.
After piping installation into the sump, the compacted clay layer
shall be replaced, inspected and approved in accordance with
Attachment 8.2 Sump Requirements. Requirements .
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Note: These are Witness Points and the Quality Assurance
SpecialistCQE shall be notified.
6.2.4 Quality Assurance testing and inspection requirements (e.g. methods,
frequencies, acceptance criteria) for the specified design criteria are
delineated in Attachment 8.2, Sump Requirements and Attachment
8.3, Piping Requirements.
6.3 Lysimeter Piping
6.3.1 The design, material, and construction requirements for the piping
installation are specified in Attachment 8.3, Piping Requirements.
Additional details are specified in the Approved for Construction
Project Drawings.
6.3.2 Quality Assurance testing and inspection requirements (e.g. methods,
frequencies, acceptance criteria) for the specified design criteria are
delineated in Attachment 8.3, Piping Requirements.
6.4 Lysimeter Manhole
6.4.1 The design, material, and construction requirements for the piping
installation are specified in Attachment 8.4, Manhole Requirements.
Additional details are specified in the Approved for Construction
Project Drawings.
6.4.2 Quality Assurance testing and inspection requirements (e.g. methods,
frequencies, acceptance criteria) for the specified design criteria are
delineated in Attachment 8.4, Manhole Requirements.
6.5 Records
6.5.1 All records generated to support construction quality and compliance
of the embankment shall be maintained in accordance with CL-QA-
PR-005, Quality Assurance Records . Examples of quality assurance
records in support of this plan are attached. See Attachment 8.6.
6.6 Vendor Data
6.6.1 The contractor is responsible for submitting vendor data to
EnergySolutions’ Quality Assurance Department for any and all
procured material(s) specified for construction.
6.7 Surveillance
6.7.1 Surveillance activities shall be performed by the CQAM or designee
in accordance with ES-QA-PR-002 , Quality Assurance Surveillance.
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6.8 Construction Certification Report
6.8.1 Within 30 days of completion of the construction of each
lysimeter, a construction certification report shall be prepared
under the direction of the Clive Facility Engineer Director of
Engineering and submitted to the UDWMRCExecutive Secretary
for approval.
7.0 REFERENCES
7.1 CL-QA-PR-005, Quality Assurance Records
7.2 CL-QA-WI-120, Control of Measuring and Test Equipment
7.3 CL-EN-PR-001, Engineering Design Control
7.4 CL-TN-PR-010, General010, General Qualification Procedure
7.5 ES-QA-PR-002, Quality Assurance Surveillances
7.6 Current revision of LLRW and 11e.(2) CQA/QC Manual for List of
Forms.

8.0 ATTACHMENTS

8.1 Attachment 8.1, Earthwork Requirements– Page 9 of 22

8.2 Attachment 8.2, Lysimeter Sump Installation Requirements
Page 10 of 22

8.3 Attachment 8.3, Piping Installation Requirements – Page13 of 22

8.4 Attachment 8.4, Manhole Installation Requirements – Page15 of 22

8.5 Attachment 8.5, Collection Lysimeter Details, Drawing NO. 0210-01,
Revision 1 -1 - Page167 of 1622

8

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Earthwork
Attachment 8.1

Page 9 of 16

SUMP EXCAVATION: The subgrade for the
collection lysimeter sump shall be excavated to at least
1.0-foot below the compacted clay layer elevation shown
on Drawing 0210-01. Survey the elevation of the
compacted subgrade at the 4 bottom and 4 top corners of
the sump side slopes.

Perform the required survey of the compacted subgrade
and attach the reviewed and approved survey notes to the
Daily Construction Report (ES 1902).

SUMP SUBGRADE COMPACTION: The subgrade
shall be compacted to at least 90 percent of the Standard
Proctor (ASTM D698) maximum dry density.
Perform at least one Standard Proctor (ASTM D698)
moisture-density relationship at a rate of one test per soil
type. Proctor results for representative samples taken for
embankment foundation QC testing may be utilized.
Conduct in-place moisture-density tests in accordance
with ASTM D-6938 at a rate of one test per sump.

Perform the required testing. Include the related standard
proctor results in the project file. Record the results of the
density testing on the Field Density Test form (ES 1905).
PIPE TRENCH EXCAVATION: The pipe trench
shall be excavated to at least 0.5 foot below pipe grade.
The trench width shall be at least 3feet wide. Measure
the trench width at a minimum of three places over the
length of the trench using a commercial grade tape
measure. Survey the subgrade elevation at the bottom of
the pipe trench. Survey points shall be less than or equal
to 50-feet apart.

Perform the required survey of the pipe trench excavation
and attach the reviewed and approved survey notes to the
Daily Construction Report (ES 1902). Measure the trench
width and document the results on the Daily Construction
Report (ES 1902).
MANHOLE EXCAVATION: The manhole
excavation shall extend to at least 0.67 foot0.67 foot
below the bottom-of-manhole grade shown on Drawing
0210-01. Survey the subgrade elevation at one point
near the center of the manhole.

Perform the survey of the manhole subgrade elevation and
attach the reviewed and approved survey notes to the Daily
Construction Report (ES 1902).

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CQA Plan for Collection Lysimeter Construction

Sump
Attachment 8.2

Page 10 of 16

COMPACTED CLAY LAYER: Place the compacted
clay layer to the elevation shown on Drawing 0210-01.
The compacted clay layer shall be placed in 12-inch
maximum loose lifts compacted to at least 90 percent of
the Standard Proctor (ASTM D698) maximum dry
density. Perform at least one Standard Proctor (ASTM
D698) moisture-density relationship at a rate of one test
per soil type. Proctor results for representative samples
taken for embankment clay layer QC testing may be
utilized. Conduct in-place moisture-density tests in
accordance with ASTM D-6938 at a rate of one test per
sump.
Measure the loose thickness of each lift using one grade
pole near the center of each lift.

Record the results of the density testing on the Field
Density Test form (ES-1905).

Perform the required lift thickness measurement and
document the results on Daily Construction Report (ES
1902).

COMPACTED CLAY SURVEY: Survey the elevation
of the completed compacted clay layer at the 4 bottom
and 4 top corners of the sump side slopes. Grade
tolerance shall be grade to 0.2-foot below grade. The
completed compacted clay layer surface shall not have
breaks in grade greater than 1 inch and be free of sharp
edges or rocks.

Perform the final elevation survey of the compacted clay
layer and attach the reviewed and approved survey notes
to the Daily Construction Report (ES 1902). Visually
inspect the final surface for breaks in grade, sharp edges
or rocks in accordance with the specifications and
document results on the Daily Construction Report (ES
1902).

WITNESS POINT: The Compacted Clay Surface
shall be inspected by the Quality Assurance
SpecialistCQE or designee prior to the surface being
covered.

HDPE LINER MATERIAL REQUIREMENTS:
The lysimeter sump shall be lined with a 60-mil HDPE
liner. The contractor shall provide the unique roll
identification number and the liner manufacturer’s QC
certificate(s) of physical properties for the roll of liner
used. Review the certificates for compliance with the
specification.

Perform the required inspection. Attach the certificates
to the Daily Construction Report (ES 1902).

GEOTEXTILE MATERIAL REQUIREMENTS:
The geotextile cushion and filter layers shall consist of 8-
ounce non-woven geotextile with a minimum mass per
unit area of 7.0-ounces per square yard (7.0 oz/sy).
The contractor shall provide certification documentation
that the supplied material meets the above criteria.

Obtain the supplied documentation and attach to the
Daily Construction Report (ES 1902).

HDPE LINER INSTALLATION: Place the HDPE
liner on the compacted clay layer and extend the
perimeter edges of the liner at least 0.5 foot beyond the
top of the sump side slopes. Secure any lifted edges of
the liner to the ground. Repair or patch any damage,
holes, seams or relief cuts within the sump using
standard fusion or extrusion welding methods in
Observe the liner installation for conformance to the
specifications. Notify contractor of any deficiencies
requiring correction. Observe corrective measures and
Document results on the Daily Construction Report (ES
1902).

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Sump
Attachment 8.2

Page 11 of 16

accordance with standard industry practice. Vacuum test
any seams or repairs in accordance with ASTM D5641.
The contractor shall provide all testing documentation to
the QC Inspector. Construct the pipe boot as shown on
Drawing 0210-01 and in accordance with ASTM D6497.

GRAVEL GRADATION MATERIAL
REQUIREMENTS: The gravel shall meet the
following gradation: 100% passing a 1½ -inch sieve, 0 to
55% passing a 3/8-inch sieve, and 0 to 10% passing a
No. 4 sieve. The gravel shall be tested in accordance
with ASTM C136 prior to use. Gradation results
obtained from representative samples taken for
embankment or concrete QC testing may be utilized.

Perform the required testing. Document the gradation on
the Soil Classification Form (ES 1908). Include
documentation of the gradation testing in the project file.
Provide written justification for the use of representative
samples on the Daily Construction Report (ES-1902)

GRAVEL THICKNESS: A 0.9 to 1.0 foot thick layer
of gravel shall be placed around the perforated pipe in
the collection lysimeter as shown on Drawing No. 0210-
01. Measure the thickness of the gravel layer with at
least one grade pole near the center of the sump.
Compaction of the gravel layer is not required.

Perform the required thickness measurement of the
gravel layer and document the results in the Daily
Construction Report (ES 1902).

SAND GRADATION MATERIAL
REQUIREMENTS: The sand shall meet the following
gradation: 100 percent passing a 3/4" sieve, 55 to 100
percent passing a No. 8 sieve, 20 to 65 percent passing a
No. 30 sieve, and 0 to 15 percent passing a No. 100
sieve. The sand shall be tested in accordance with ASTM
C136 prior to use. Gradation results obtained from
representative samples taken for embankment or
concrete QC testing may be utilized.

Perform the required testing. Document the gradation on
the Soil Classification Form (ES 1908). Include
documentation of the gradation testing in the project file.
Provide written justification for the use of representative
samples on the Daily Construction Report (ES-1902)

SAND THICKNESS: A 0.9 to 1.0 foot thick sand layer
will be placed above the gravel layer as shown on
Drawing No. 0210-01. Measure the thickness of the sand
layer with at least one grade pole near the center of the
sump. Compaction of the sand layer is not required.

Perform the required thickness measurement of the sand
layer and document the results in the Daily Construction
Report (ES 1902).

GEOTEXTILE PLACEMENT: Place at least one
layer of geotextile on the HDPE liner prior to gravel
placement, above the gravel prior to sand placement, and
above the sand prior to compacted clay layer placement
as shown on Drawing No. 0210-01. Each component,
including the perforated pipe shall be completely
covered by the geotextile.

Verify that the placement of the lysimeter sump
components meets specifications and document results in
the Daily Construction Report (ES 1902).

GEOTEXTILE SURVEY: Survey the top elevation of
the completed sump installation at the center and 4
corners of the sump. The top elevation of the completed
sump shall not exceed the clay liner foundation grade of
the disposal cell.
Perform the required survey of the top elevations at the
center and 4 corners of the completed sump installation.
attach the reviewed and approved survey notes to the
Daily Construction Report (ES1902).

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CQA Plan for Collection Lysimeter Construction

Piping Installation
Attachment 8.3

Page 12 of 16

PIPE MATERIAL REQUIREMENTS: All pipe and
fittings shall consist of Schedule 80 PVC (ASTM
D1785), except that the pipe and fittings inside of the
collection manhole may alternatively consist of Schedule
40 PVC. The pipe within the lysimeter sump shall have
1/2-inch diameter holes at 4-inches on-center on both
sides of the pipe as shown on Drawing 0210-01. All
pipe and fittings shall be joined using PVC cement
recommended by the pipe manufacturer.

Perform the required inspections and document the
results in the Daily Construction Report (ES1902).

GRANULAR BEDDING MATERIAL
REQUIREMENTS: Granular bedding shall meet the
following gradation: 100 % passing the 1½ inch sieve,
50 to 100% passing the ¾ inch sieve, 0 to 55 % passing
the 3/8 inch sieve, and 0 to 10% passing the No. 4 sieve.
The granular bedding shall be tested in accordance with
ASTM C136 prior to use. Gradation results obtained
from representative samples taken for embankment or
concrete QC testing may be utilized.

Perform the required testing. Document the gradation on
the Soil Classification Form (ES 1908). Include
documentation of the gradation testing in the project file.
Provide written justification for the use of representative
samples on the Daily Construction Report (ES-1902)

PIPE BEDDING INSTALLATION: Place granular
bedding to within  0.1 foot of pipe grade and survey the
trench bedding elevation. Survey points shall be less than
or equal to 50-feet apart.

Perform the required survey of the granular bedding and
attach the reviewed and approved survey notes to the
Daily Construction Report (ES 1902).

PIPE JOINING: Place pipe sections on graded bedding
and glue all joints using PVC cement. All pipe and
fittings shall utilize socket type joints using PVC cement
recommended by the pipe manufacturer.

Inspect pipe connection for presence of PVC cement and
document the results in the Daily Construction Report
(ES 1902).

PIPE BEDDING INFILL: Place granular bedding to at
least 0.5 feet above the crown of the pipe.

Observe that bedding is placed as required above the
crown of the pipe and document the results in the Daily
Construction Report (ES 1902).

PIPE TRENCH BACKFILL: Trench backfill,
excluding the wedge beneath the sump, shall consist of
granular bedding, or of native soils excavated from the
pipe trench. If granular bedding is used as trench
backfill, the final 1.0  0.2-foot thick lift shall consist of
native soils. All clay and native soils shall be placed in
1.0  0.2-foot thick loose lifts. Compact all lifts to at
least 90 percent of a Standard Proctor (ASTM D698)
maximum dry density. Perform at least one Standard
Proctor (ASTM D698) moisture-density relationship at a
rate of one test per soil type. Proctor results for
representative samples taken for embankment clay liner
QC testing may be utilized. Conduct in-place moisture-
density tests in accordance with ASTM D6938 at a rate
of one test per 100 feet of trench for each lift of clay
and/or native soil backfill.

Perform the required testing. Include the related
standard proctor results in the project file. Record the
results of the density testing on the Field Density Test
form (ES 1905).
Provide written justification for the use of representative
samples on the Daily Construction Report (ES-1902)

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CQA Plan for Collection Lysimeter Construction

Piping Installation
Attachment 8.3

Page 13 of 16

Compaction testing of granular bedding material is not
required.

BACKFILL LIFT THICKNESS: Measure the loose
lift thickness of clay and native soil backfill with grade
poles at a spacing less than or equal to 50-feet apart.

Perform the required thickness measurement and
document the results on the Daily Construction Report
(ES 1902).

BACKFILL UNDER SUMP: The wedge of trench
backfill below the sump shall also consist of compacted
clay. All clay and native soils shall be placed in 1.0 
0.2 foot thick loose lifts compacted to at least 90% of the
Standard Proctor maximum dry density (ASTM D698) at
a rate of one test per soil type. Proctor results for
representative samples taken for embankment clay liner
QC testing may be utilized. Conduct in-place moisture-
density tests in accordance with ASTM D6938.at a rate
of one test per lift of clay backfill.

Perform the required testing. Include the related
standard proctor results in the project file. Record the
results of the density testing on the Field Density Test
form (ES 1905). Record the results of the lift thickness
measurements on the Daily Construction Report (ES-
1902).

WITNESS POINT: The Compacted Clay Surface in
the sump shall be inspected by the Quality Assurance
SpecialistCQE or designee prior to the surface being
covered.

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CQA Plan for Collection Lysimeter Construction

Manhole Installation
Attachment 8.4

Page 14 of 16

GRANULAR BEDDING MATERIAL
REQUIREMENTS: Granular bedding shall meet the
following gradation: 100 % passing the 1½ inch sieve,
50 to 100% passing the ¾ inch sieve, 0 to 55 % passing
the 3/8 inch sieve, and 0 to 10% passing the No. 4 sieve.
The granular bedding shall be tested in accordance with
ASTM C136 prior to use. Gradation results obtained
from representative samples taken for embankment or
concrete QC testing may be utilized.

Perform the required testing. Document the gradation on
the Soil Classification Form (ES 1908). Include
documentation of the gradation testing in the project file.
Provide written justification for the use of representative
samples on the Daily Construction Report (ES-1902)

GRANULAR BEDDING INSTALLATION: Place at
least one 0.67foot thick lift of granular bedding on the
subgrade prior to placing the base section of the
manhole. Measure the bedding thickness with at least
one grade pole near the center of the manhole.

Compaction testing of the granular bedding layer is not
required.

Perform the required measurement of the granular
bedding and document results on the Daily Construction
Report (ES 1902).

MANHOLE MATERIAL REQUIREMENTS: The
manhole base and riser sections shall consist of precast
concrete with a full-height ladder. The precast manhole
sections and ladder shall conform to ASTM C478. The
contractor shall provide written evidence that the ASTM
requirements are met.

Inspect manhole riser section for the presence of ladder
rungs and good general condition. Document results of
the inspection on the Daily Construction Report (ES
1902) and attach the applicable vendor data.

SEALANTS: Assemble the manhole sections and seal
each joint using preformed flexible joint sealant or a
similar product (ASTM C990). Seal the pipe penetration
on each side of the manhole wall using Quikrete®
Mortar Mix or similar Portland cement mortar mix or a
manufacturer specified pipe boot.

Inspect the assembled manhole riser joints for the
presence of sealant. Inspect pipe penetrations for the
presence of mortar mix or a pipe boot around the pipe.
Document the results of the inspections on the Daily
Construction Report (ES 1902).

BACKFILL: The backfill within 3-feet of the manhole
shall consist of granular bedding to a level greater than
or equal to 5-feet below final grade. The final 5-feet of
backfill shall consist of clay placed in 1.0  0.1-foot
thick loose lifts compacted to at least 90% of the
Standard Proctor maximum dry density (ASTM D698) at
a rate of one test per soil type. All other backfill may
consist of granular bedding, clay or native soils
excavated from the manhole excavation. Native soil and
clay backfill shall be placed in 1.0  0.1 foot thick loose
lifts compacted to at least 90% of the Standard Proctor
maximum dry density (ASTM D698) at a rate of one test
per soil type. Proctor results for representative samples
taken for embankment clay liner QC testing may be
utilized. Conduct in-place moisture-density tests in
accordance with ASTM D6938 at a rate of one test per
soil type.
Perform the required testing. Include the related
standard proctor results in the project file. Record the
results of the density testing on the Field Density Test
form (ES 1905). Record the results of the lift thickness
measurements on the Daily Construction Report (ES-
1902). Provide written justification for the use of
representative samples on the Daily Construction Report
(ES-1902)

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CQA Plan for Collection Lysimeter Construction

Manhole Installation
Attachment 8.4

Page 15 of 16

Measure the loose lift thickness of clay and native soil
backfill with at least one grade pole per lift.

Compaction testing of granular bedding material is not
required.

FINAL INSPECTION: A final inspection of the project
shall be conducted and documented by the QC
Supervisor or designeeQCO prior to acceptance of the
work.
Perform final inspection and document results. Notify
contractor of any corrective actions required and repeat
inspection until all discrepancies are corrected.

CQA Plan for Collection Lysimeter Construction

Lysimeter Details
Drawing 0210-01 (Revision 1)
Attachment 8.5

Page 16 of 16