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Construction Quality Assurance Report
Johnston County MSW Landfill — Phase 6A
Smithfield, North Carolina
Prepared for:
Johnston County Department of Solid Waste Services
Smithfield, North Carolina
September 2021
Prepared by:
NCLIC.NO.F-1370 (ENGINEERING)
SMITH+GARONER
14 N. Boylan Avenue, Raleigh NC 27603 1919.828.0577
APRINTED ON 100% RECYCLED PAPER
O 2021 Smith Gardner, Inc.
This document is intended for the sole use of the client for which it was prepared and
for the purpose agreed upon by the client and Smith Gardner, Inc.
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Construction Quality Assurance Report
Johnston County MSW Landfill— Phase 6A
Smithfield, North Carolina
Prepared For:
Johnston County Department of Solid Waste Services
Smithfield, North Carolina
S+G Project No.JOHNSTON-19-4
DocuSigned by:
Spt,l&U'r K (' bumbvu
8B13721B7E5F488...
SpencerW. Hollomon, P.E.
Project Engineer
D�oc�u}Signe�d+by:
5B6B31996A674D7...
Pieter K. Scheer, P.E.
Vice President, Senior Engineer
September 2021
NCLIC.NG.F-1370 (ENGINEERING)
SMITH+6ARONER
14 N. Boylan Avenue, Raleigh NC 27603 1919.828.0577
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Johnston County MSW Landfill— Phase 6A
Smithfield, North Carolina
Construction Quality Assurance Report
Table of Contents
Paqe
1.0
OVERVIEW....................................................................................................................1
2.0
PROJECT DESCRIPTION..............................................................................................
1
2.1 General......................................................................................................................1
2.2 Reference Documents...............................................................................................2
2.3 Design Clarifications and Modifications...................................................................2
2.4 Project Participants...................................................................................................3
2.4.1 Owner............................................................................................................3
2.4.2 Engineer/CQA Engineer................................................................................3
2.4.3 CQA Testing - Earthwork, Geosynthetics, & Construction Monitoring .......3
2.4.4 Contractor.....................................................................................................
4
2.4.5 Geosynthetics Installer.................................................................................4
2.4.6 Electrical Subcontractor...............................................................................4
2.4.7 Contractor's Surveyor...................................................................................4
3.0
SUMMARY OF CONSTRUCTION ACTIVITIES................................................................. 5
3.1 Site Preparation.........................................................................................................5
3.2 Erosion and Sedimentation Control Measures........................................................
5
3.3 Earthwork..................................................................................................................
5
3.4 Soil Liner....................................................................................................................6
3.5 Geosynthetic Clay Liner (GCL)..................................................................................
6
3.6 60 Mil HDPE Geomembrane.....................................................................................
7
3.7 Leachate Collection System/Protective Cover.........................................................7
3.8 Leachate Pumps and Force Main.............................................................................
7
3.9 Project Timeline........................................................................................................
8
4.0
CQA PROGRAM............................................................................................................
8
4.1 Scope of Services......................................................................................................8
5.0
EARTHWORK CQA........................................................................................................ 9
6.0
SOIL LINER CQA..........................................................................................................
9
7.0
GCL CQA....................................................................................................................
10
7.1 Material Approval....................................................................................................
10
7.2 Manufacturer's Quality Control Submittals...........................................................
10
7.3 Material Control Testing.........................................................................................
10
8.0
60 MIL HDPE GEOMEMBRANE CQA...........................................................................
11
8.1 Material Approval....................................................................................................
11
8.2 Manufacturer's Quality Control Certificates..........................................................
11
8.3 Material Control Testing.........................................................................................
11
8.4 Field Seam Control Tests........................................................................................
11
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8.5 Field Seam Record Tests........................................................................................
11
9.0
LEACHATE MANAGEMENT SYSTEM CQA...................................................................
12
9.1 Material Approval....................................................................................................
12
9.2 Manufacturer's Quality Control Submittals...........................................................
12
9.3 Material Control Testing.........................................................................................
12
9.4 Contractor CQC Testing..........................................................................................
13
9.5 Leachate Pump Start-Up........................................................................................
13
10.0
GEOTEXTILE CQA.......................................................................................................
13
10.1 Material Approval....................................................................................................
13
10.2 Manufacturer's Quality Control Submittals...........................................................
13
10.3 Material Control Testing.........................................................................................
14
11.0
DRAINAGE GEOCOMPOSITE CQA...............................................................................
14
11.1 Material Approval....................................................................................................
14
11.2 Manufacturer's Quality Control Submittals...........................................................
14
11.3 Material Control Testing.........................................................................................
14
12.0
RECORD DRAWINGS..................................................................................................
14
13.0
PROJECT CERTIFICATION.........................................................................................
15
TABLES
Table 1
Summary of Material Control and Record Tests - Structural Fill
Table 2
Summary of Material Control and Record Tests - Soil Liner Test Fill
Table 3
Summary of Material Control and Record Tests - Soil Liner
Table 4
Summary of Material Control Tests - GCL
Table 5
Summary of Material Control Tests - HDPE Geomembrane
Table 6
Summary of Material Record Tests - HDPE Geomembrane Seams
Table 7
Summary of Material Control Tests - Geotextiles
Table 8
Summary of Material Control Tests - Drainage Geocomposite
APPENDICES
Appendix A
Reference Documents (Permits/Approvals)
Appendix B
Design Clarifications and Modifications
Appendix C
Photographic Log
Appendix D
Subgrade Inspection and Well/Piezometer Abandonment Information
Appendix E
CQA Meeting Minutes
Appendix F
Earthwork CQA Data
F1. CQA Test Results - Control Tests
F2. CQA Test Results - Record Tests
Appendix G
Soil Liner CQA Data
G1. CQA Test Results - Control Tests
G2. CQA Test Results - Record Tests
Appendix H
Interface Shear Strength Test Data
Appendix I
GCL CQA Data
11. Manufacturer's Product Data Submittals and Quality Control
Certificates
12. Geosynthetics Inventory - GCL
13. CQA Test Results - Material Control Tests
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September 2021
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Appendix J
Geomembrane CQA Data
J1. Manufacturer's Product Data Submittals and Quality Control
Certificates
J2. Geosynthetics Inventory - HDPE Geomembrane
J3. CQA Test Results - Material Control Tests
J4. Installer Logs
Trial Seam Log
Panel Placement Log
Seaming and Non -Destructive Test Log
Destructive Test Log
Repair Log
Tensiometer Calibration Certificates
J5. CQA Test Results - Destructive Seam Testing (Laboratory)
Appendix K
Leachate Management System CQA Data
K1. Manufacturer's Product Data Submittals and Quality Control
Certificates
K2. CQA Test Results - Drainage Aggregate
K3. CQA Test Results - Protective Cover
K4. Leachate Collection System Video Inspection
K5. Leachate Force Main Pressure Test Documentation
K6. Leachate Pump Start -Up Documentation
Appendix L
Geotextile CQA Data
L1. Manufacturer's Product Data Submittals and Quality Control
Certificates
L2. Geosynthetics Inventory - Geotextiles (Type GT-C; Type GT-S)
L3. CQA Test Results - Material Control Tests
Appendix M
Drainage Geocomposite CQA Data
M1. Manufacturer's Product Data Submittals and Quality Control
Certificates
M2. Geosynthetics Inventory - Drainage Geocomposite
M3. CQA Test Results - Material Control Tests
Appendix N
Record Drawings
French Drain Record Drawing
Conformance Table (Layer Thicknesses)
Subgrade As -Built Survey
Soil Liner As -Built Survey
Geomembrane Record Layout
Protective Cover As -Built Survey
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1.0 OVERVIEW
This Construction Quality Assurance (CQA1 Report has been prepared to document the CQA
activities performed during the construction of Phase 6A of the Johnston County municipal solid
waste (MSW) landfill. The landfill facility is located on County Home Road near Smithfield,
North Carolina and is owned and operated by Johnston County under State Solid Waste Permit
No. 51-03. A Permit to Construct for Phase 6A was issued by the North Carolina Department of
Environmental Quality Division of Waste Management (NCDWM) on May 8, 2020.
2.0 PROJECT DESCRIPTION
2.1 General
Phase 6A is a 12.2 acre (lined) Subtitle D landfill unit designed by Smith Gardner, Inc.
(S+G). The components of the constructed alternative liner system include the following
components (top -down):
• a leachate collection system (LCS1 consisting of:
0 24 inches of protective cover (soil);
o a drainage geocomposite; and
o a system of collection pipes and gravel columns.
a 60 mil textured HDPE geomembrane liner;
a geosynthetic clay liner (GCL1; and
• an 18-inch thick soil liner with a hydraulic conductivity of no more than 1 x 10-5
cm/sec.
Leachate generated from Phase 6A will be collected in a sump at the north end of the
unit. From the sump, the leachate will be pumped via side -wall riser pumps and force
main to an existing gravity main which drains to the on -site leachate storage lagoon.
In addition to the liner and leachate management systems, the Phase 6A design also
includes associated perimeter berms and erosion and sedimentation control measures.
Also, part of the construction included the installation of geosynthetic rain cover over the
protective cover in order to provide stormwater/leachate separation and, thus, reduce
the quantity of leachate generated during initial operations.
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2.2 Reference Documents
Phase 6A was constructed in accordance with the following documents with
clarifications and modifications as described in Section 2.3.
Construction Documents - Johnston County MSWLF - Phase 6A:
Includes general and technical specifications, CQA manual, contract addenda,
and construction drawings prepared by Smith Gardner, Inc. (S+G) and dated
February 2020 (Conformed - April 2020).
Permit To Construct Application - Johnston County MSWLF - Phase 6:
Includes technical specifications, CQA manual, and permit drawings prepared by
S+G and dated March 2019 (as revised through May 2020) (Permit to Construct
issued by NCDWM on May 8, 2020 (copy provided in Appendix A.
Erosion and Sedimentation Control Plan for Johnston County MSWLF Phase 6
prepared by S+G dated February 2020 (as revised through May 2020). Letter of
approval correspondence dated May 18, 2020 from Land Quality Section (copy
provided in Appendix A).
NC DEQ DWR Approval of Individual 401 Water Quality Certification (WQC
004224) dated April 2, 2020 from NC DEQ DWR.
U.S. Army Corps of Engineers Approval (Action ID: SAW-2017-00348) dated
May 5, 2020 from U.S. Army C.O.E.
2.3 Design Clarifications and Modifications
Clarifications and modifications to the above documents for Phase 6A are provided in
Appendix B. A listing of each is as follows:
Desian Clarification:
Culvert Schedules
Design Modification:
Construction Dewatering (French Drain).
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2.4 Project Participants
The following parties were involved in the construction and CQA of Phase 6A:
2.4.1 Owner
Johnston County Department of Solid Waste Services
680 County Home Road
Smithfield, NC 27577
Phone: (919) 938-4750
Contact: Rick Proctor, Director
2.4.2 Engineer/CQA Engineer
Smith Gardner, Inc. (S+G1
14 N. Boylan Ave.
Raleigh, NC 27603
Phone: (919) 828-0577
Fax: (919) 828-3899
Contacts: Pieter Scheer, P.E., Project Manager
Herman Thio, P.E., Electrical Engineer
2.4.3 CQA Testing - Earthwork, Geosynthetics, C Construction Monitoring
Geotechnics (Soil Testing)
2200 Westinghouse Blvd., Suite 103
Raleigh, NC 27604
Phone: (919) 876-0405
Fax: (919) 876-0460
Contacts: Mike Smith, Regional Manager
Jeremy Shaw, Field Technician
Erik Lindquist, Field Technician
Geotechnics (Laboratory Testing of Geosynthetics)
544 Braddock Ave.
East Pittsburgh, PA 15112
Phone: (412) 823-7600
Fax: (412) 823-8999
Contact: J.P. Kline, P.E., Lab Director
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2.4.4 Contractor
Shamrock Environmental Corp. (Shamrock)
6106 Corporate Park Drive
Browns Summit, NC 27214
Phone: (800) 881-1098
Contacts: Bryan Gaidanowicz, Project Manager
Mike Shelden, Project Superintendent
2.4.5 Geosynthetics Installer
Chesapeake Containment Systems, Inc. (CCS)
2690-D Salisbury Hwy.
Statesville, NC 28677
Phone: (704) 208-3440
Contact: Jordan Sellers, Project Manager
2.4.6 Electrical Subcontractor
TEC Industrial, LLC
161 Gold Hill Rd
Madison NC 27025
Phone: (336) 223-6379
Contacts: Mac Taylor, Project Manager
2.4.? Contractor's Surveyor
Bateman Civil Survey Co., P.C.
2524 Reliance Avenue
Apex, North Carolina 27539
Phone: (919) 577-1080
Contact: Steven Carson, PLS, Project Manager
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3.0 SUMMARY OF CONSTRUCTION ACTIVITIES
Major elements of the project are discussed below. Photos documenting the construction of
Phase 6A can be found in Appendix C. Prior to Shamrock beginning work, a project Pre -
Construction Meeting was held on May 22, 2020.
3.1 Site Prenaration
Construction of Phase 6A began in June 2020 with the surveying/staking of the limits of
construction and the initiation of site preparation activities by Shamrock. During site
clearing, several wells and piezometers were abandoned (Appendix D).
3.2 Erosion and Sedimentation Control Measures
The construction of erosion and sedimentation control measures took place in
conjunction with project activities and under the site permits issued by the Land Quality
Section of the NC Division of Land Resources. Permanent drainage channels, culverts,
etc. were added as areas were brought to grade. Once areas reached final grade, the
areas were vegetated in accordance with project requirements.
3.3 Earthwork
Once portions of the site were cleared and grubbed, excavation and stockpiling activities
were performed. Excavated materials including stripped topsoil, unsuitable soils, and
structural fill were identified and separated. Topsoil and unsuitable soils were taken to
the stockpile area within Borrow Area D for future use by Shamrock or as daily or
intermediate cover by the County. The soils within the Phase 6A footprint identified for
use as structural fill were excavated and placed and compacted where needed. As
anticipated, during excavation activities, several areas required overexcavation and
backfill due to the presence of unsuitable materials.
During construction of the subgrade, continued seepage was observed along and near
the eastern slope in the southern half of Phase 6A due to significant precipitation during
the initial months of construction. Because of this, a French drain was added (Reference
Section 2.3 (Design Modification No. 1) and Appendix B). The French drain was
constructed using perforated corrugated polyethylene pipe encased in No. 57 stone,
which was wrapped in a Type GT-S geotextile. Upon construction, the top of the drain
(top of stone) was surveyed to verify that a minimum separation of 4 feet was maintained
to subgrade elevations (record information on the French drain is provided in Appendix
N.).
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Upon completion of the Phase 6A subgrade and in accordance with the permit, Ms. Joan
Smyth, P.G. visited and examined the site to identify any subgrade conditions that may
adverselyaffect the design, construction, or operation of the unit. As documented in Ms.
Smyth's report (Appendix D) no adverse conditions were observed.
A record drawing showing completed subgrade elevations is provided in Appendix N.
3.4 Soil Liner
Prior to the construction of the soil liner, a soil liner CQA meeting was held in
accordance with the requirements of the project CQA manual. A summary of this
meeting can be found in Appendix E.
Prior to construction of the soil liner, a test fill (pad) was constructed on November 23rd
and 241h, 2020 (Lifts 1 & 2) and December 2rd, 2020 (Lift 3) near the south end of Phase
6A. The test fill was constructed using the procedure described below and tested in
accordance with the project specifications and CQA manual. All tests on the test fill met
or exceeded project requirements. Once the test results for the test fill were obtained,
construction of the soil liner was initiated.
For the placement and compaction of the compacted soil liner, Shamrock used the
following procedure:
1. Shamrock would first excavate the material from the borrow area and
place the material in nominal 10 inch loose lifts.
2. The loose material was then processed using tracked equipment to break
down clods as needed.
3. Shamrock then used a water tanker to add moisture, as needed, to the
loose lift of soil liner.
4. Next a pad foot compactor was used to compact the liner.
5. Finally, each compacted lift was rolled with a smooth drum roller to seal
the surface against moisture loss and to protect the lift from
precipitation. Prior to the placement of subsequent lifts, the top of each
lift was scarified to allow bonding of the lifts.
A record drawing showing completed soil liner elevations is provided in Appendix N.
3.5 Geosynthetic Clay Liner (GCL)
Prior to the installation of geosynthetics, a geosynthetics CQA meeting was held in
accordance with the requirements of the project CQA manual. A summary of this
meeting can be found in Appendix E.
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GCL placement by CCS began on April 7, 2021 at the south end of Phase 6A and
proceeded to the north following the parameters of the project specifications and
standard industry practices.
3.6 60 Mil HOPE Geomembrane
The GCL installation was followed closely by placement of the 60 mil HDPE
geomembrane to minimize the potential for damage to the GCL by hydration. In
accordance with project requirements, textured HDPE geomembrane was placed over
the GCL.
A record drawing showing the orientation of geomembrane panels as well as destructive
sample and repair locations is provided in Appendix N.
3.7 Leachate Collection System/Protective Cover
As the 60 mil HDPE geomembrane installation was proceeding, placement of cushion
(Type GT-C) geotextile (under gravel columns) and drainage geocomposite was begun.
As these materials were placed, the overlying protective cover soil was placed by
Shamrock beginning at the south end of Phase 6A and proceeding to the north. In order
to protect the underlying geosynthetics from damage, trucks operated on at least 3 feet
of material and low ground pressure dozers were used to push out the material. Only
minor wrinkling of the geomembrane was observed during placement (as is typical) and
good contact between the HDPE geomembrane and the underlying GCL was apparent.
Along with placement of protective cover, Shamrock constructed the gravel
columns/pipes across the base of Phase 6A. The gravel columns were covered with
Type GT-S geotextile.
The soils used for protective cover were excavated from Borrow Area D and were silty
sands (SM) and clayey sands (SC). The material was compacted by tracked equipment
during placement and the majority of Phase 6A was covered with geosynthetic rain cover
upon completion of protective cover placement.
3.8 Leachate Pumos and Force Main
During protective cover placement, Shamrock installed the Leachate force main along
the northern perimeter berm.
Once the leachate sump area was completed, the leachate side risers and pumps along
with the associated electrical conduits and equipment were installed and connected with
the Leachate force main. A pump start-up was performed as described in Section 9.5.
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3.9 Project Timeline
The following is a timeline of major items of work and project milestones:
Notice to Proceed:
Start of Site Work:
Compacted Soil Liner
Geosynthetics Installation:
Aggregate/Protective Cover Placement
Geosynthetic Rain Cover Installation:
Pump Start Up:
4.0 CQA PROGRAM
4.1 Scope of Services
06/15/20
06/15/20
11/23/20 - 12/2/20 (Test Fit[)
12/30/20 - 3/27/21 (General Fit[)
4/7/21 - 5/3/21
4/27/21 - 6/7/21
6/7/21 - 6/14/21
9/23/21
In satisfying the requirements of the Project CQA Manual for Phase 6A, the following
activities were performed:
• Observation and documentation of construction of prepared subgrade, structural
fill, soil liner, GCL, HDPE geomembrane, and leachate collection system (LCS).
• Field and/or laboratory testing of structural fill, soil liner, geosynthetics, and
drainage aggregate.
• Review of submittals from the Contractor for conformance with project
specification and CQA requirements.
• Review/preparation of record drawings.
• Preparation of the final CQA report.
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5.0 EARTHWORK CQA
The criteria for construction of structural fill per the project specifications included the
following:
Materials: SM, SP, SC, ML, MH, CL-ML, CL, or CH (ASTM D 2488) with
no topsoil or other deleterious material and no stones or
rocks in excess of one half the lift thickness as compacted;
Density: Minimum 95% Maximum Standard Proctor Dry Density
(98% under roads and structures) (ASTM D 698);
Moisture Content: As necessary for compaction; and
Lift Thickness: 8-inch max. (compacted).
The number and results of material control and record tests performed on the structural fill are
summarized in Table 1. Other tests performed on an on -going basis during construction
included a visual classification of soils (ASTM D 2488) and monitoring of loose lift thickness.
Note that the number of tests required was based on an approximate quantity of 150,000 CY of
material placed (in -place measure). The results of field and laboratory testing of structural fill
can be found in Appendix F. A record drawing showing completed subgrade elevations is
provided in Appendix N.
6.0 SOIL LINER CQA
The criteria for construction of soil liner per the project specifications included the following:
Materials:
Soil type as required to achieve the hydraulic conductivity
criteria with no organics, debris, or other detrimental
material;
Clod Size:
Max. 1/4 inch;
Gradation:
Max. ='/2 inch (finished soil liner surface) and Max. = 11/2
inches (below finished soil liner surface);
Lift Thickness:
6-inch max. (compacted).
Density:
Minimum 95% Maximum Standard Proctor Dry Density
(ASTM D 698);
Moisture Content:
> optimum moisture content (ASTM D 698);
Hydraulic Conductivity:
< 1 x 10-5 cm/sec; and
Thickness:
18 inches min.
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The number and results of material control and record tests performed on the soil liner are
summarized in Table 2 (Test Fill) and Table 3. Note that the number of tests required was
based on an approximate quantity of 29,800 CY of material placed (in -place measure). Other
tests performed on an on -going basis during construction included a visual classification of
soils (ASTM D 2488) and monitoring of clod size and loose lift thickness. The results of field and
laboratory testing of the soil liner can be found in Appendix G. Final thickness of the soil liner
was verified by Bateman Civil Survey Co. An as -built of the soil liner can be found in Appendix
N.
7.o GCL CQA
7.1 MaterialApproval
S+G reviewed and approved the geosynthetic clay liner (GCL) product submittals
provided by Shamrock. The selected material was BentoLiner NWL-35 as manufactured
by Solmax Geosynthetics, LLC of Houston, TX. Copies of selected product submittals for
these products can be found in Appendix 11.
Note that, as part of the submittal information for all geosynthetics, interface shear
strength testing was performed for the potential critical geosynthetic/soil or
geosynthetic/geosynthetic interfaces within the liner systems. This testing was
performed on representative material samples by Geotechnics of Pittsburgh, PA under
subcontract to CCS. A summary of this testing performed is provided in Appendix H.
The results for each interface were found to meet or exceed project design
requirements.
7.2 Manufacturer's Quality Control Submittals
S+G reviewed and approved Solmax's quality control certificates upon delivery to the
site. Copies of these certificates can be found in Appendix 11.
7.3 Material Control Testing
The number and results of material control tests performed on the GCL are summarized
in Table 4. Note that the number of tests required was based on a quantity of 590,550
SF (254 rolls/6 lots) of material received. A geosynthetics inventory log for the GCL can
be found in Appendix 12. This log identifies the rolls which were sampled for material
control testing. The results of material control testing of GCL can be found in Appendix
13.
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8.0 60 MIL HOPE GEOMEMBRANE CQA
8.1 MaterialApproval
S+G reviewed and approved the 60 mil HDPE geomembrane product submittals provided
by Shamrock. The selected material was 60 mil Double -Side Textured HDPE
geomembrane as manufactured by Solmax Geosynthetics, LLC of Houston, TX. Copies
of selected product submittals for these products can be found in Appendix J1.
8.2 Manufacturer's Quality Control Certificates
S+G reviewed and approved Solmax's quality control certificates upon delivery to the
site. Copies of these certificates can be found in Appendix J1.
8.3 Material Control Testi
The number and results of material control tests performed on the 60 mil HDPE
geomembrane is summarized in Table 5. Note that the number of tests required was
based on a quantity of 626,184 SF (54 rolls/1 lot) of material received. A geosynthetics
inventory log for HDPE geomembrane can be found in Appendix J2. This log identifies
the rolls which were sampled for material control testing. The results of material
control testing of HDPE geomembrane can be found in Appendix J3.
8.4 Field Seam Control Tests
The results of trial welds performed by CCS can be found in Appendix J4.
s.5 Field Seam Record Tests
Seaming forms (including the results of nondestructive testing) can be found in
Appendix J4. The results of destructive CQC and CQA testing can be found in
Appendices J4 and J5, respectively. A geomembrane repair report documenting all
repairs of defects and destructive sample locations can be found in Appendix J4.
Record testing of HDPE geomembrane seams is summarized in Table 6.
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9.0 LEACHATE MANAGEMENT SYSTEM CQA
9.1 MaterialApproval
S+G reviewed and approved the leachate management system product submittals
provided by Shamrock. The selected materials included the following:
Drainage Aggregate:
I
Martin Marietta - Benson Quarry
(No. 57 Stone)
HDPE Pipe/Fittings:
I
Lee Supply
2", 3", and 8" Diam. (DR 11);
18" Diam. (DR 17)
Valves:
I
Ball & Check Valves:
Asahi America
Pumps:
Side Risers (2):
QED Environmental Systems
Torpedo Sideslope Pump Model 45SI0-3 (1 HP)
Geotextiles:
See Section 10.0
Drainage Geocomposite:
See Section 11.0
Geosynthetic Rain Cover:
Raven Dura-Skrim 12BV
Copies of selected product submittals for these products can be found in Appendix K1.
9.2 Manufacturer's Quality Control Submittals
S+G reviewed and approved stone gradation information from Shamrock related to the
No. 57 stone. This information is provided in Appendix K1.
9.3 Material Control Testi
The gradation of the No. 57 stone provided for use in the leachate collection system was
evaluated in accordance with ASTM C 136 for the approximate 3,300 CY of material
provided. One gradation test was performed on the No. 57 stone (meeting the 1 test per
5,000 CY project requirement) and the results met project requirements. Additionally,
carbonate content of the No. 57 stone was evaluated in accordance with ASTM D 3042.
The results demonstrated a carbonate content of 0.6%. The results of the CQA testing
on No. 57 stone can be found in Appendix K2.
Grain size analyses (in accordance with ASTM D 422) were either performed during the
project or previously performed for the borrow areas used as protective cover. A total of
Johnston County MSW Landfill- Phase 6A Construction Quality Assurance Report
September 2021 Page 12
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10 gradation tests (meeting the 1 test per 5,000 CY project requirement based on 39,700
CY of protective cover placed) documented the soils used for protective cover were
classified as silty sands (SM) and clayey sands (SC), which meet project requirements.
Note that compaction testing was not performed as tracking of the final lift was
specified. The results of the CQA testing on protective cover soil can be found in
Appendix K3.
9.4 Contractor CQC Testing
Upon completion of construction of the leachate collection system, the piping system
was flushed with water and inspected using a video camera by Jet Clean America, a
subcontractor to Shamrock. Documentation of the pipe inspection can be found in
Appendix K4.
During construction of the leachate force main, Shamrock performed a hydrostatic
pressure test on the force main. The pressure testing was conducted in accordance
with ASTM F 2164. Documentation of the successful test can be found in Appendix K5.
9.5 Leachate Pump Start -Up
Near completion of the project, Shamrock provided the services of the pump
manufacturer, QED Environmental Systems, to perform start-up of the leachate pumps
on September 23, 2021. Documentation of the pump start-up can be found in Appendix
K6.
10.0 GEOTEXTILE CQA
10.1 Material Approval
S+G reviewed and approved the geotextile product submittals provided by Shamrock.
The selected materials were Mirafi S1600 (Type GT-C geotextile) as manufactured by
Tencate Geosynthetics of Pendergrass, CA and TerraTex N06 (Type GT-S geotextile) as
manufactured by Thrace Linq for Hanes Geo Components of Winston-Salem, NC. Copies
of selected product submittals for this product can be found in Appendix L1.
10.2 Manufacturer's Qualitv Control Submittals
S+G reviewed and approved manufacturer quality control certificates upon delivery to
the site. Copies of these certificates can be found in Appendix L1.
Johnston County MSW Landfill- Phase 6A Construction Quality Assurance Report
September 2021 Page 13
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10.3 Mate ria[Control Testi
The number and results of material control tests performed on the geotextiles is
summarized in Table 9. Note that the number of tests required was based on a quantity
of 67,500 SF (15 rolls/1 lot) of Type GT-C geotextile and 67,500 SF (15 rolls/1 lot) of Type
GT-S geotextile material received and used in Phase 6A. A geosynthetics inventory log
for Type GT-C and Type GT-S geotextile can be found in Appendix L2. The results of
material control testing of geotextiles can be found in Appendix L3.
11.0 DRAINAGE GEOCOMPOSITE CQA
11.1 MaterialARproval
S+G reviewed and approved the drainage geocomposite product submittals provided by
Shamrock. The selected material was FabriNet TRX 300 as manufactured by Solmax
Geosynthetics, LLC of Houston, TX. Copies of selected product submittals for this
product can be found in Appendix M1.
11.2 Manufacturer's Oualitv Control Submittals
S+G reviewed and approved Solmax's quality control certificates upon delivery to the
site. Copies of these certificates can be found in Appendix M1.
11.3 Material Control Testi
The number and results of material control tests performed on the drainage
geocomposite is summarized in Table 9. Note that the number of tests required was
based on a quantity of 726,750 SF (255 rolls/2 lots) of material received. A geosynthetics
inventory log for drainage geocomposite can be found in Appendix M2. The results of
material control testing of drainage geocomposite can be found in Appendix M3.
12.0 RECORD DRAWINGS
The following record (as -built) drawings depicting the construction of Phase 6A can be found in
Appendix N:
• French Drain;
• Conformance Table (Layer Thicknesses) (prepared by Bateman Civil Survey);
• Subgrade (prepared by Bateman Civil Survey);
• Soil Liner (prepared by Bateman Civil Survey);
• HDPE Geomembrane (prepared by Chesapeake Containment Systems); and
• Protective Cover (prepared by Bateman Civil Survey);
Johnston County MSW Landfill- Phase 6A Construction Quality Assurance Report
September 2021 Page 14
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13.0 PROJECT CERTIFICATION
Based on the observations and results of the CQA program documented herein, it is my
professional opinion that the construction of Phase 6A of the Johnston County MSW Landfill was
completed in accordance with the following:
i. The Project CQA Manual;
ii. The conditions of the Permit to Construct Phase 6A;
iii. The requirements of 15A NCAC 13B.1624; and
iv. Acceptable engineering practices.
SMITH GARDNER, INC. ®®.�$° � �� °°ell
DocuSigned by:
I-P
r.L ti SAL r
an
a
5B6631996A674D7...4.
Pieter K. Scheer, P.E.��
Project Manager �����@���
'P40,'ensena�en®"y@ 9/29/2021
Johnston County MSW Landfill— Phase 6A Construction Quality Assurance Report
September 2021 Page 15
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Johnston County MSW Landfill
Phase BA Construction
TABLET
SUMMARY OF MATERIAL CONTROL
AND RECORD TESTS
STRUCTURAL FILL
Property
Control Tests
Record Tests
Moisture -Density
Relationship (Proctor)
In -Place Density
In -Place Moisture Content
Units
-----
% Std. Proctor
%
Test Method
ASTM D 698
ASTM D 2922'
ASTM D 30172
Required Test Frequency
5,000 CY per each soil
20,000 ft2 per lift & 1 per
500 LF of Berms (<200 ft.
base width) (+/- 1 Per 500
CY)
20,000 ft2 per lift & 1 per
500 LF of Berms (<200 ft.
base width) (+/- 1 Per 500
CY)
No. of Tests Required
30
300
300
No. of Tests Performed
13 (See Note 31
341
341
Specified Value
-----
> 95% Std. Proctor
As Required for Density
Minimum Value
-----
95.0
-5.8% Opt.
Maximum Value
-----
103.0
10.7% Opt.
Average Value
-----
97.0
1.1 % Opt.
Quantity of Structural Fill (In-PLace): 150,000 CY
Notes:
1. Nuclear density values verified periodically by sand cone (ASTM D 1556), rubber balloon [ASTM D 2167), and/or
drive cylinder (ASTM D 29371 test methods.
2. Nuclear moisture values verified periodically by oven (ASTM D 22161, microwave oven (ASTM D 46431, and/or
direct heating (ASTM D 4959) test methods.
3. Fewer tests were deemed acceptable based on the consistency of materials used.
SMITH GARDNER, INC. Table 1 - Structural Fill JC Phase 6A MSWLF CQA Report Tables
,7190436A-6:25782A/,)A.!++,,-$-A&-& A#! 'A"' -#A$ #(-+(""%'.
Johnston County MSW Landfill
Phase 6A Construction
TABLE 2
SUMMARY OF MATERIAL CONTROL
AND RECORD TESTS
COMPACTED SOIL LINER TEST FILL
1of1
Property
Control Tests
Record Tests
Grain Size Analysis
Atterberg Limits
Moisture -Density
Relationship
(Proctor)
Hydraulic
Conductivity
(Remolded)
In -Place Density
In -Place Moisture
Content
Hydraulic
Conductivity
(Undisturbed)
Units
-----
-----
-----
cm/sec
% Std. Proctor
%
cm/sec
Test Method
ASTM D 6913
ASTM D 4318
ASTM D 698
ASTM D 5084
ASTM D 29221
ASTM D 30172
ASTM D 5084
Required Test Frequency
1 per lift
1 per lift
1 per lift
1 per Lift
3 per lift
3 per Lift
1 per lift
No. of Tests Required
3
3
3
3
9
9
3
No. of Tests Performed
3
3
3
3
17
17
3
Specified Value
< 1.5"
-----
-----
< 1 x 10-5
o
> 95 /o Std. Proctor
> % Opt. & As
Required for
Hydraulic
Conductivity
5
< 1 x 10-
Minimum Value
Pass
-----
-----
3.0E-08
96
0.0% Opt.
2.7E-08
Maximum Value
Pass
-----
-----
1.2E-07
100
5.3% Opt.
7.0E-08
Average Value
Pass
-----
-----
6.2E-08
98
1.6% Opt.
4.7E-08
Number of Lifts: 3
Notes:
1. Nuclear density values verified periodically by sand cone [ASTM D 15561, rubber balloon [ASTM D 21671, and/or drive cylinder [ASTM D 2937) test methods.
2. Nuclear moisture values verified periodically by oven (ASTM D 2216), microwave oven [ASTM D 4643), and/or direct heating (ASTM D 4959) test methods.
SMITH GARNER, INC. Table 2 - CSL Test FiLL JC Phase 6A MSWLF COA Report Tables
,7190436A-6:25782A/,)A.!++,,-$-A&-& A#! 'A"' -#A$ #(-+(""%'.
Johnston County MSW Landfill
Phase 6A Construction
TABLE 3
SUMMARY OF MATERIAL CONTROL
AND RECORD TESTS
COMPACTED SOIL LINER
1of1
Property
Control Tests
Record Tests
Grain Size Analysis
Atterberg Limits
Moisture -Density
Relationship
(Proctor)
Hydraulic
Conductivity
(Remolded)
In -Place Density
In -Place Moisture
Content
Hydraulic
Conductivity
(Undisturbed)
Units
-----
-----
-----
cm/sec
% Std. Proctor
%
cm/sec
Test Method
ASTM D 6913
ASTM D 4318
ASTM D 698
ASTM D 5084
ASTM D 2922'
ASTM D 30172
ASTM D 5084
Required Test Frequency
2,000 CY
2,000 CY
5,000 CY
10,000 CY
10,000 ft2 per lift
10,000 ft2 per lift
40,000 ft2 per lift
No. of Tests Required
15
15
6
3
160
160
40
No. of Tests Performed
20
20
8
6
254
254
42
Specified Value
< 1.5"
-----
-----
< 1 x 10-5
> 95% Std. Proctor
> Opt. & As Required
for Hydraulic
Conductivity
< 1 x 10-5
Minimum Value
Pass
-----
-----
2.4E-08
95
-0.2% Opt.
3.8E-09
Maximum Value
Pass
-----
-----
2.3E-06
100
5.3% Opt.
7.0E-07
Average Value
Pass
-----
-----
4.2E-07
98
1.3% Opt.
6.9E-08
Quantity of Compacted Soil Liner (In -Place): 29,800 CY
Area of Compacted Soil Liner: 12.2 AC
Number of Lifts: 3
Notes:
1. Nuclear density values verified periodically by sand cone (ASTM D 1556), rubber balloon (ASTM D 2167), and/or drive cylinder (ASTM D 2937) test methods.
2. Nuclear moisture values verified periodically by oven (ASTM D 2216), microwave oven (ASTM D 4643), and/or direct heating (ASTM D 49591 test methods.
SMITH GARDNER, INC. Table 3 - CSL JC Phase 6A MSWLF CQA Report Tables
,7190436A-6:25782A/,)A.!++,,-$-A&-& A#! 'A"' -#A$ #(-+(""%'.
Johnston County MSW Landfill TABLE 4 1 of 1
Phase 6A Construction SUM MARY OF MATERIAL CONTROL TESTS
GEOSYNTHETIC CLAY LINER
Property
Hydraulic
Conductivity
Bentonite Content
Peel Strength
Average
Units
cm/sec
psf
lbs
Test Method
ASTM D 5887
ASTM D 5993
ASTM D 6496
Required Test Frequency
100,000 ftz or
1 per Lot
100,000 ftz or
1 per Lot
100,000 ft2 or 1 per Lot
No. of Tests Required
6
6
6
No. of Tests Performed
6
6
6
Specified Value
< 5 X 10-9
> 0.75
> 5.3
Sample I.D.
Results
Roll2335-089143 (L20-120-002-001)
1.04E-09
0.89
11.4
Roll 2335-089186 (L20-120-002-002)
1.14E-09
0.91
10.9
Roll 2335-089229 (L20-120-002-003)
1.30E-09
0.87
12.7
Roll 2335-089272 (L20-120-002-004)
1.17E-09
0.93
11.8
Roll2335-089315(1-20-120-002-005)
1.28E-09
0.93
12.2
Roll, 2335-089358(L20-120-002-006)
1.79E-09
0.76
14.6
Minimum Value
1.04E-09
0.76
10.9
Maximum Value
1.79E-09
0.93
14.6
Average Value
1.29E-09
0.88
12.3
Quantity of GCL Received: 590,550 ftz
6 Lots
Notes:
1. At 0% Moisture.
SMITH GARDNER, INC. Table 4 - GCL JC Phase 6A MSWLF COA Report Tables
,7190436A-6:25782A/,)A.!++"-$-A&-& A#! 'A"' -#A$ #(-+(""%"
Johnston County MSW Landfill
Phase BA Construction
TABLE 5
SUMMARY OF MATERIAL CONTROLTESTS
HOPE GEOMEMBRANE
1 of 1
Property
Thickness
Density
Carbon Black
Content
Carbon Black
Dispersion
Tensile Properties
Tear Resistance
Tensile Strength at
Yield
Tensile Strength at
Break
Elongation at Yield
Elongation at Break
MD' CD'
MD CD
MD CD
MD CD
MD CD
Units
mils
g/cm3
%
Category
lb/inch
lb/inch
%
%
Lbs
Test Method
ASTM D 5994
ASTM D 1505
ASTM D 4218
ASTM D 5596
ASTM D 6693 (Type IV)
ASTM
D 1004
Required Test Frequency
100,000 ft2 or
1 per Lot
100,000 ft2 or
1 per Lot
100,000 ft2 or
1 per Lot
100,000 ft2 or
1 per Lot
100,000 ft2
or 1 per Lot
100,000 ft2 or
1 per Lot
No. of Tests Required
7
7
7
7
7
7
7
7
7
No. of Tests Performed
7
7
7
7
7
7
7
7
7
Specified Value
60 (See Note 31
> 0.940
2.0 - 3.0
1, 2, or 3
> 126
> 90
>
12
> 100
> 42
Sample I.D.
Results
Roll 1001-148561 (L20-120-001-001)
59
0.946
2.46
Pass
172
168
187
170
15
14
440
440
60.7
58.3
Roll 1001-148569 (L20-120-001-002)
58
0.947
2.30
Pass
152
161
172
173
15
13
440
470
55.7
55.6
Roll 1001-148578 (L20-120-001-003)
60
0.947
2.41
Pass
153
161
184
173
15
15
500
480
57.0
55.1
Roll 1001-148587 (L20-120-001-004)
59
0.946
2.38
Pass
156
160
186
164
15
14
460
280
58.0
55.9
Roll 1001-148595 (L20-120-001-005)
59
0.946
2.62
Pass
160
161
183
173
15
14
430
480
57.4
56.8
Roll 1001-148604 (L20-120-001-006)
60
0.947
2.55
Pass
159
162
193
175
15
14
520
470
57.2
57.0
Roll 1001-148613 (L20-120-001-007)i
60
0.947
2.43
Pass
164
168
190
175
14
14
430
350
57.2
57.0
Minimum Value
58
0.946
2.30
Pass
152
160
172
164
14
13
430
280
55.7
55.1
Maximum Value
60
0.947
2.62
Pass
172
168
193
175
15
15
520
480
60.7
58.3
Average Value
59
0.947
2.45
Pass
159
163
185
172
15
14
460
424
58
56.5
Quantity of HDPE Geomembrane Received:
626,184 ft2
1 Lots
Notes:
1. Carbon black dispersion for 10 different views: Min. 9 of 10 in Categories 1 or 2; All 10 in Categories 1, 2, or 3.
2. MD = Machine Direction; CD = Cross Machine Direction
3. Thickness value is a nominal value. Minimum average can be-5% (57 mils).
SMITH GARDNER, INC. Table 5 - HDPE-GM JC Phase 6A MSWLF CQA Report Tables
,7190436A-6:25782A/,)A.!++"-$-A&-& A#! 'A"' -#A$ #(-+(""%"
Johnston County MSW Landfill TABLE 6 1 of 3
Phase 6A Construction SUMMARY OF MATERIAL RECORD TESTS
HOPE GEOMEMBRANESEAMS
Property
Peel Strength '
Shear Strength '
Peak Load Outside
Track (Weld "A")
Locus of Break &
Incursion
Peak Load Inside
Track (Weld "B"I
Locus of Break &
Incursion
Peak Load
Locus of Break &
Incursion
Units
Lbs/inch
-----
lbs/inch
-----
Lbs/inch
-----
Test Method
ASTM D 6392
COC Field Destructive Seam Testing
Required Test Frequency
500 LF
No. of Tests Required
55
No. of Tests Performed
59
Specified Value
> 91 (Hot Wedge)
> 78 (Ex. Fillet)
(See Note 21
> 91 (Hot Wedge)
-
> 78 (Ex. Fillet)
(See Note 2)
> 120
(See Note 21
Results - See Appendix J
COA Laboratory Destructive Seam Testing
Required Test Frequency
1 per day of Production Seaming
No. of Tests Required
11
No. of Tests Performed
20
Specified Value (See Note 21
> 91 (Hot Wedge)
> 78 (Ex. Fillet)
(See Note 21
>> 91 (Hot Wedge)
> 78 (Ex. Fillet)
(See Note 2)
> 120
(See Note 21
Sample I.D.
Results
DS-1
128.4
Pass
135.5
Pass
169.5
Pass
DS-2
135.8
Pass
132.3
Pass
160.0
Pass
DS-3
125.3
Pass
123.1
Pass
158.9
Pass
DS-4
131.1
Pass
128.1
Pass
172.1
Pass
DS-5
134.5
Pass
121.6
Pass
160.9
Pass
DS-6
132.4
Pass
122.9
Pass
164.8
Pass
DS-7
135.9
Pass
136.5
Pass
168.4
Pass
DS-8
128.5
Pass
139.9
Pass
173.4
Pass
DS-9
130.6
Pass
130.3
Pass
162.5
Pass
DS-10
128.1
Pass
127.3
Pass
164.5
Pass
DS-11
133.8
Pass
135.6
Pass
160.3
Pass
DS-12
134.7
Pass
131.2
Pass
168.1
Pass
DS-13
128.1
Pass
124.4
Pass
163.2
Pass
DS-14
139.1
Pass
134.2
Pass
164.9
Pass
DS-15
147.8
Pass
143.9
Pass
158.7
Pass
DS-16
125.9
Pass
141.6
Pass
162.9
Pass
DS-17
129.5
Pass
134.7
Pass
160.5
Pass
DS-18
130.4
Pass
140.1
Pass
160.8
Pass
DS-19
132.4
Pass
129.5
Pass
173.1
Pass
DS-20
130.8
Pass
138.9
Pass
166.7
Pass
SMITH GARGNER, INC. Table 6 - HDPE-GM Seams JC Phase 6A MSWLF CDA Report Tables
,7190436A-6:25782A/,)A.!++"-$-A&-& A#! 'A"' -#A$ #(-+(""%"
Johnston County MSW Landfill TABLE 6 2 of 3
Phase 6AConstruction SUMMARY OF MATERIAL RECORD TESTS
HOPE GEOMEMBRANE SEAMS
COA Laboratory Destructive Seam Testing IContinuedl
Specified Value (See Note 2)
> 91 Hot Wedge
(See Note 21
> 91 Hot Wedge
-78 [Ex
(See Note 21
> 120
(See Note 21
Sample I.D.
Results
DS-21
138.2
Pass
129.2
Pass
164.0
Pass
DS-22
130.2
Pass
118.4
Pass
163.6
Pass
DS-23
121.9
Pass
136.5
Pass
168.2
Pass
DS-24
126.5
Pass
117.1
Pass
160.5
Pass
DS-25
130.7
Pass
133.2
Pass
165.9
Pass
DS-26
129.2
Pass
137.8
Pass
167.2
Pass
DS-27
133.8
Pass
132.8
Pass
165.4
Pass
DS-28
147.1
Pass
153.6
Pass
185.0
Pass
DS-29
127.0
Pass
136.2
Pass
168.7
Pass
DS-30
128.1
Pass
151.1
Pass
170.5
Pass
DS-31
131.6
Pass
129.6
Pass
164.1
Pass
DS-32
130.1
Pass
131.4
Pass
166.8
Pass
DS-33
131.0
Pass
143.4
Pass
177.3
Pass
DS-34
131.1
Pass
138.5
Pass
169.9
Pass
DS-35
151.0
Pass
140.0
Pass
175.2
Pass
DS-36
127.9
Pass
138.5
Pass
175.1
Pass
DS-37
152.0
Pass
155.3
Pass
166.9
Pass
DS-38
132.5
Pass
138.8
Pass
169.6
Pass
DS-39
126.3
Pass
129.0
Pass
166.4
Pass
DS-40
136.5
Pass
137.0
Pass
173.5
Pass
DS-41
129.1
Pass
137.9
Pass
166.2
Pass
DS-42
131.5
Pass
120.7
Pass
166.4
Pass
DS-43
153.9
Pass
150.2
Pass
167.2
Pass
DS-44
127.3
Pass
132.6
Pass
173.9
Pass
DS-45
125.4
Pass
141.3
Pass
169.1
Pass
DS-46
149.4
Pass
150.5
Pass
161.3
Pass
DS-47
133.5
Pass
139.7
Pass
178.6
Pass
DS-48
131.4
Pass
142.1
Pass
171.6
Pass
DS-49
133.7
Pass
144.7
Pass
169.8
Pass
DS-50
135.4
Pass
136.4
Pass
165.3
Pass
DS-51
144.2
Pass
148.9
Pass
167.8
Pass
DS-52
134.3
Pass
134.2
Pass
164.3
Pass
DS-53
129.7
Pass
129.9
Pass
168.7
Pass
DS-54
132.6
Pass
127.1
Pass
169.9
Pass
DS-55
128.4
Pass
125.6
Pass
165.5
Pass
DS-56
141.5
Pass
150.0
Pass
164.4
Pass
DS-57
123.2
Pass
143.9
Pass
170.2
Pass
DS-58(Extrusion)
109.1
Pass
-----
-----
171.5
Pass
DS-59lExtrusion)
137.1
Pass
168.3
Pass
SMITH GARGNER, INC. Table 6 - HDPE-GM Seams JC Phase 6A MSWLF CDA Report Tables
,7190436A-6:25782A/,)A.!++,,-$-A&-& A#! 'A"' -#A$ #(-+(""%"
Johnston County MSW Landfill TABLE 6 3 of 3
Phase 6AConstruction SUMMARY OF MATERIAL RECORD TESTS
HOPE GEOMEMBRANE SEAMS
CQA Laboratory Destructive Seam Testing [Continued)
Specified Value (See Note 21
> 91 (Hot Wedge)
> 78 (Ex. Fillet)
(See Note 21
> 91 (Hot Wedge)
> 78 (Ex. Fillet)
(See Note 21
> 120
(See Note 21
Minimum Value
109.1
Pass
117.1
Pass
158.7
Pass
Maximum Value
153.9
Pass
155.3
Pass
185.0
Pass
Average Value
132.8
Pass
135.7
Pass
167.4
Pass
Quantity of Geomembrane Seams:
Number of Production Seaming Days:
27,280 LF W-)
11 Days
Notes:
1. Values listed for shear and peel strengths are for 4 out of 5 test specimens; the 51" specimen can be as low as 80 % of the specified values.
2. Regarding the locus -of -break patterns of the different seaming methods in shear and peel, refer to the project specifictions.
SMITH GARDNER, INC. Table 6 - HDPE-GM Seams JC Phase 6A MSWLF CQA Report Tables
,7190436A-6:25782A/,)A.!++"-$-A&-& A#! 'A"' -#A$ #(-+(""%"
Johnston County MSW Landfill TABLE7 1 of 1
,Has e 6A Construction SUMMARY OF MATERIAL CONTROL TESTS
GEOTEXTILES
Property
Tensile Properties
Puncture Resistance
Trapezoidal Tear
Strength
Mass Per Unit Area
Apparent Opening Size
LAOS)
Grab Strength
Grab Elongation
MD' CD1
MD CD
MD CD
Units
lbs
%
Las
its
lbs
U.S. Sieve
Test Method
ASTM D 4632
ASTM D 6241
ASTM D 4533
ASTM D 5261
ASTM D 4751
Required Test Frequency
100.000 fte or 1 per Lot
100.000 fte or
1 per Lot
100,000 fte or
1 per Lot
100,000 fte or
1 per Lot
100,000 fte or
1 per Lot
Type GT-C Geotextile
No. of Tests Required
1
1
1
1
1
NA
No. of Tests Performed
1
1
1
1
1
-----
Specified Value
> 205
> 50
> 900
> 80
> 16
-----
Sample I.D.
Results
Roll J1040846 (L21-061-004-0011
494 1 485 64 1 86 1,489 173 1 193 18 -----
Minimum Value
494
485
64
86
1,489
173
193
18
-----
Maximum Value
494
485
64
86
1,489
173
193
18
-----
Average Value
494
485
64
86
1,489
173
193
18
-----
Quantity of Type GT-C Geotextile Received: 67,500 SF
1 Lots
Type GT-S Geotextile
No. of Tests Required
1
1
1
1
NA
1
No, of Tests Performed
1
1
1
1
-----
1
Specified Value
> 160
> 50
> 410
> 55
-----
> 70
Sample I.D.
Results
ROLL T0001844201L21-061-005-001
183 1 225 54 1 55 583 55 1 74 ----- 120
Minimum Value
183
225
54
55
583
55
74
-----
120
Maximum Value
183
225
54
55
583
55
74
-----
120
Average Value
183
225
E
54
55
583
55
74
-----
120
Quantity of Type GT-S Geotextile Received: 67,500 SF
1 Lots
Notes:
1. MID = Machine Direction; CID = Cross Machine Direction
SMITH GARDNER, INC. Table 7 - Geotextites JC Phase 6A MSW LF COA Report Tables
,7190436A-6:25782A/,)A.!++"-$-A&-& A#! 'A"' -#A$ #(-+(""%"
Johnston County MSW Landfill TABLES 1 of 1
Phase 6A Construction SOMMARY OF MATERIAL CONTROL TESTS
DRAINAGE GEOCOMPOSITE
Property
Geonet Thickness
Geonet Density
Ply Adhesion
Transmissivity
Side A
Side B
MD'
MD
Units
inches
g/cm3
Lbs
m3/m/sec
Test Method
ASTM D 5199
ASTM D 1505
ASTM D 7005
ASTM D 4716
Required Test Frequency
100.000 ft2 or
1 per Lot
100.000 ft2 or
1 per Lot
100,000 ft2 or 1 per Lot
1 per Lot
No. of Tests Required
8
8
8
2
No. of Tests Performed
7 (See Note 21
7 (See Note 21
7 (See Note 21
2
Specified Value
> 0.25
> 0.94
> 2.0 (Typ.)/> 1.0 (Min. Avg.)
> 4.9 x 10-4
Sample I.D.
Results
Roll 2331-588400(L20-120-003-001)
0.300
0.9566
3.17
4.19
6.33E-04
0112331-588440(L20-120-003-002)
0.315
0.9564
3.58
3.68
7.55E-04
o1L2331-588480(L20-120-003-0031
0.304
0.9555
2.20
5.18
-----
0112331-588523(L20-120-003-004)
0.303
0.9565
2.61
2.68
-----
olL 2331-588565 (L20-120-003-0051
0.308
0.9571
2.79
3.31
-----
o112331-588605(L20-120-003-006)
0.306
0.9567
1.35
2.58
-----
0112331-588645(L20-120-003-0071
0.309
0.9560
2.97
2.89
Minimum VaLue
0.300
0.9555
1.35
2.58
6.33E-04
Maximum Value
0.315
0.9571
3.58
5.18
7.55E-04
Average Value
0.306
0.9564
2.67
3.50
6.94E-04
Quantity of Drainage Geocomposite Received: 726,750 ft2
2 Lots
Notes:
1. MD = Machine Direction
2. Actual frequency (Approx. 1 per 103,800 SF) was deemed acceptable given the test results obtained.
SMITH GARONER, INC. Table 8 - Drainage Geocomposite JC Phase 6A MSWLF COA Report Tables
Appendix A
Reference Documents (Permits/Approvals)
Construction Quality Assurance Report
Johnston County MSW Landfill- Phase 6A
Smithfield, North Carolina
RGY COOPER
Governor
MICHAEL 5. REGAN
Secretary
MICHAEL SCOTT
Director
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 1 of 16
NORTH CAROLINA
Environmental Quality
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WASTE MANAGEMENT
SOLID WASTE SECTION
MUNICIPAL SOLID WASTE AND C&D LANDFILL FACILITY
Permit No. 5103
JOHNSTON COUNTY
is hereby issued a
PERMIT TO CONSTRUCT
5103-MSWLF — JOHNSTON COUNTY MSW LANDFILL, PHASE 6
PERMIT TO OPERATE
5103-MSWLF - JOHNSTON COUNTY MSW LANDFILL, PHASE 4A
5103-CDLF — JOHNSTON COUNTY C&D LANDFILL, AREA 2, CELLS 1 AND 2
PERMIT FOR CLOSURE
MSW PHASES 1 THROUGH 4 AND C&D AREA 1
Located at 680 County Home Road, west of Smithfield, in Johnston County, North Carolina in
accordance with Article 9, Chapter 130A, of the General Statutes of North Carolina and all rules
promulgated thereunder and subject to the conditions set forth in this permit. The legal description of
the site is identified on the deeds recorded for this property listed in Attachment No. 1 of this permit.
Digitally signed by
Sherri Stanley
Date: 2020.05.08
11:53:13-04'00'
Sherri C. Stanley, Supervisor
Permitting Branch, Solid Waste Section
Division of Waste Management
D1E Q
0. W 111nNR e! FAYeI.I�Y ��
North Carolina Department of Environmental Quality I Division of Waste Management
217 West Jones Street 1 1646 Mai[ Service Center 1 Ratetgh, North Carolina 27699-1646
919.707,8200
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 2 of 16
ATTACHMENT 1
GENERAL PERMIT CONDITIONS AND INFORMATION
Permit to Operate Data Table
Permit
Issuance
Expiration*
5103-MSWLF
May 8, 2020
August 6, 2057
5103-CDLF
May 8, 2020
August 6, 2057
*Life -of -site pursuant to NCGS 130A-294 (a2) is when the fill operation reaches final permitted elevations, or
no later than 60 years from August 6, 1997, which is the initial operation of the lined units.
PART I GENERAL FACILITY
This permit is issued by the North Carolina Department of Environmental Quality, Division of
Waste Management, Solid Waste Section (Section). In accordance with North Carolina Solid
Waste Management Rule 15A NCAC 13B .0201(d), a solid waste management facility permit
shall have two parts: a permit approval to construct and a permit approval to operate. The permit
approval to construct must be implemented in accordance with Attachment 2 of this permit. The
permit approval to operate must be implemented in accordance with Attachment 3 of this permit.
2. The persons to whom this permit is issued ("permittee") are the owners and operators of the solid
waste management facility.
3. The Permit to Construct and Operate dated May 27, 2015, was recorded with the Johnston County
Register of Deeds on June 4, 2015. The document is recorded in Deed Book 4607, pages 81-100.
The recordation can also be viewed on the Section's online documents database.
4. When this property is sold, leased, conveyed, or transferred in any manner, the deed or other
instrument of transfer must contain in the description section, in no smaller type than that used in
the body of the deed or instrument, a statement that the property has been used as a sanitary
landfill and a reference by book and page to the recordation of the permit.
5. By beginning construction or receiving waste at this facility the permittee shall be considered to
have accepted the terms and conditions of this permit.
6. Construction and operation of this solid waste management facility must be in accordance with the
Solid Waste Management Rules, 15A NCAC 13B, Article 9 of Chapter 130A of the North
Carolina General Statutes (NCGS 130A-290, et seq.), the conditions contained in this permit, and
the approved plan. Should the approved plan and the rules conflict, the Solid Waste Management
Rules shall take precedence unless specifically addressed by permit condition. Failure to comply
may result in compliance action or permit revocation.
7. This permit is issued based on the documents submitted in support of the application for permitting
the facility identified in Attachment 1, "List of Documents for Approved Plan," which constitutes
the approved plan for the facility. Where discrepancies exist, the most recent submittals and the
conditions of permit shall govern.
8. This permit may be transferred only with the approval of the Section, through the issuance of a
new or substantially amended permit in accordance with applicable statutes and rules.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 3 of 16
9. In accordance with NCGS 130A-295.2(g), the permittee must notify the Section thirty (30) days
prior to any significant change in the identity or business structure of either the owner or the
operator, including but not limited to, a proposed transfer of ownership of the facility or a change
in the parent company of the owner or operator of the facility.
10. The permittee is responsible for obtaining all permits and approvals necessary for the development
of this project including approval from appropriate agencies for sedimentation and erosion control,
and a General or Individual National Pollutant Discharge Elimination System (NPDES)
Stormwater Discharge Permit. Issuance of this permit does not remove the permittee's
responsibilities for compliance with any other local, state or federal rule, regulation or statute.
Properties Approved for the Solid Waste Management Facility
Johnston County, N.C. Register of Deeds
Book
Page
Grantee (sold to)
Acres
763
525
Johnston County
86.6
1228
652
Johnston County
248.75
1215
747
Johnston County
63
E-3
1
Johnston County
—29
2109
599
Johnston County
14.02
Plat Book 81
219
Johnston County Landfill Recombination Survey
Total Site Acreage: 529 acres
Johnston County Parcel No. 15I08028. The actual disposal area consists of approximately 226.4 acres,
which includes Phases 1 through 10, both MSW and C&D (construction and demolition debris) landfill
units. Deeds have not been located for all parcels of the landfill property.
Filled and Current Landfill Units
Latitude and Longitude,
ap rox. center of the Phase(s)
Phases 1 and 2
35.514450,-78.426652
Phases 3, 4, 4A, and C&D Area 1
35.518818,-78.427060
C&D Area 2
35.517529,-78.423941
Phase 5
35.515484,-78.432306
Phase 6
35.515074,-78.434195
Permitting History
Issuance
Date
Doc/File
ID
Permit No. 51-01 PTO Phase 4
March 13, 1984
Permit No. 51-01 PTO vertical expansion
October 25, 1990
Permit No. 51-01 PTO vertical expansion
July 30, 1991
Permit No. 51-01 PTO C&D Phase 4A (C&D Area 1)
December 22, 1998
Permit No. 51-01 PTO C&D Phase 4A (C&D Area 1)
January 22, 2002
14472
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 4 of 16
Permit No. 51-02 PTC Phase 5
December 22, 1995
Permit No. 51-02 PTO Phase 5
August 6, 1997
Permit No. 51-02 PTO Phase 5 leachate recirculation
March 27, 2001
Permit No. 51-03 PTC MSW Phase 4A Cells 1 and 2
and C&D Phase 4A (C&D Area 1)
April 3, 2002
14584
PTO Phase 5 and C&D Phase 4A vertical expansion
(C&D Area 1)
April 3, 2002
14584
PTO MSW Phase 4A Cell 1 and C&D Phase 4A
(C&D Area 1)
December 20, 2002
PTO MSW Phase 4A Cell 2 and C&D Area 1
August 1, 2005
14587
PTC C&D Area 2, Cell 1
August 31, 2006
14588
PTO C&D Area 2, Cell 1
August 24, 2007
2934
PTC MSW Phase 4A, Cell 3
January 16, 2009
6088
PTO MSW Phase 4A, Cell 3, fill sequence 1
September 28, 2009
8483
PTO MSW Phase 4A, permit renewal
May 27, 2015
24159
PTC C&D Area 2, Cell 2, and PTO permit renewal
May 27, 2015
24159
PTO C&D Area 2, Cells 1 and 2
May 26, 2017
27742
PTO MSW Phase 4A Vertical Expansion
May 8, 2020
1389224
PTC MSW Phase 6
May 8, 2020
1389224
In 1973, landfill operations began in Phase 1 on this property. Phases 2, 3, and 4 began operating
in 1974, 1979, and 1984, respectively. In 1984, landfill permit number 51-01 was issued for the
facility. Phases 1 through 4 were not constructed with a liner below the waste. Acreage and
volume information on the unlined Phases of the landfill are following:
Unlined Landfill Unit
Area (acres)
Gross Capacity (cubic yards)
Phases 1 and 2
22.1
732,363
Phase 3
25.4
1,174,139
Phase 4
37.3
1,631,731
Total Unlined
84.8
3,538,233
2. In 1997, landfill operations began in Phase 5, which was constructed with a Subtitle D liner. Phase
5 was issued permit number 51-02.
3. In 1998, a separate C&D landfill cell began operating on top of closed MSW Phase 4. This area
was called C&D Phase 4A at that time, but was later named C&D Area 1.
4. In 2002, permit number 5103 was issued. This permit approved operation of MSW Phase 4A (Cell
1), which is a lined landfill cell between closed MSW Phases 3 and 4. Phase 4A also piggybacks
the side slopes over closed Phases 3 and 4. This permit issuance incorporated previous permits 51-
01 and 51-02 into one permit, now called permit number 51-03.
In 2005, landfill operations began in MSW Phase 4A, Cell 2. A vertical expansion was approved
for C&D disposal in C&D Area 1 on top of closed Phase 4.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 5 of 16
6. In 2007, C&D Area 2 was approved and began operating. Part of this area (Cell 1) is adjacent and
east of closed MSW Phase 3, and part of Area 2 (Cell 2) piggybacks the side slope of closed Phase
3. C&D Area 2 is designed with a geomembrane liner and leachate collection system.
7. In 2015, the property boundary was increased to include the yard waste management area and
additional buffer east of C&D Area 2. Property parcels were combined.
8. In 2020, a vertical expansion was approved for Phase 4A, increasing the final elevation of Phase
4A by 13 feet to a final height of 345 msl.
PART II: LIST OF DOCUMENTS FOR APPROVED PLAN
Note — Documents referenced in this permit (e.g., File ID 1389226) can be viewed online at the NC
Solid Waste Section website in the Documents database.
Johnston County Subtitle D Landfill Phase 5, Permit 51-02. Construction Quality Assurance
(CQA), As -Built Certification, and Revised Engineering Plan. Prepared by McKim & Creed
Engineers, P.A., Cary, NC. March 1997. 3 Volumes and drawings.
2. Letter Grimes to Fry. Requesting approval of Alternative Daily Cover, Tarpomatic. July 27,
1998. Doc ID 14565.
3. Johnston County C&D Landfill Vertical Expansion. Prepared by G.N. Richardson & Associates,
Inc., Raleigh, NC. December 1998.
4. Cap Closure Certification Letter for the Johnston County Landfill, Dec. 1998.
5. Permit to Construct Application. Johnston County MSW Landfill -Phase 4A. Prepared by G.N.
Richardson & Associates, Inc., Raleigh, NC. April 2000. Revised December 2001.
6. Permit Modification Application. Johnston County C&D Landfill Vertical Expansion. Prepared
by G.N. Richardson & Associates, Inc., Raleigh, NC. January 2002. (Modification, Area 4A,
Permit No. 51-01).
7. Division of Water Quality Permit No. WQ0019631, Johnston County, Conjunctive Use at
Johnston County Landfill, Reclaimed Water Utilization System. March 27, 2002. Modified
June 13, 2003, December 20, 2004, May 5, 2006, and November 16, 2006.
8. CQA Report, Johnston County MSW Landfill, Phase 4A, Cell 1. Prepared by G.N. Richardson &
Associates, Raleigh, NC. December 2002.
9. Permit Modification Application. Johnston County C&D Landfill Vertical Expansion. Prepared
by G.N. Richardson & Associates, Inc., Raleigh, NC. December 2003, Revised August 2005.
10. CQA Report, Johnston County MSW Landfill, Phase 4A, Cell 2. Prepared by G.N. Richardson
& Associates, Raleigh, NC. July 2005.
11. Permit to Construct Application. Johnston County C&D Landfill, Area 2. Prepared b: G.N.
Richardson & Associates, Inc., Raleigh, NC. October 2005. Revised May 2006.
12. CQA Report, Johnston County C&D Landfill, Area 2, Cell 1. Prepared by Richardson Smith
Gardner & Associates, Raleigh, NC. June 2007. Doc ID 2769.
13. Johnston County Landfill Equalization Facility Drawings. Prepared by Dewberry & Davis, Inc.,
Raleigh, NC. October 2007.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 6 of 16
14. Letter from Pieter Scheer, Richardson, Smith, Gardner & Associates, to Donna Wilson, NC
DENR, November 6, 2007. Revised Permit Modification Request, Modification of Existing
Leachate Storage Pond for use as Equalization Basin. Doc ID 3348.
15. Permit Amendment Application, Johnston County MSW Landfill, Phase 4A, Cell 3. Prepared by
Richardson Smith Gardner & Associates, Raleigh, NC. June 2007, amended January 2009. Doc
ID 6615.
16. Closure and Post -Closure Plans and Financial Assurance for Continued Operation of the C&D
Landfill (0547 Requirements). Prepared by Richardson Smith Gardner & Associates, Raleigh,
NC. June 2008, amended January 2009. Doc ID 8491.
17. Seep Repair and Miscellaneous Site Improvement, Johnston County MSW Landfill. Prepared by
Richardson Smith Gardner & Associates, Raleigh, NC. April 3, 2009. Doc ID 8551.
18. CQA Report, Johnston County MSW Landfill, Phase 4A, Cell 3. Prepared by G.N. Richardson
& Associates, Raleigh, NC. July 2009, revised August 2009. Doc ID 8084.
19. Closure CQA for C&D Area 1. Prepared by Richardson Smith Gardner, Raleigh, NC. July
2011. Doc ID 21740.
20. Construction Documentation, Landfill Gas Collection System. Prepared by SCS Engineers, PC,
Charlotte, NC. November 2011, revised December 2011. Doc ID 16068.
21. Permit Amendment and Permit to Construct Application, Area 2, Cell 2, Johnston County C&D
Landfill. Prepared by Smith Gardner, Inc., Raleigh, NC. Feb. 2013, amended through May
2015. Doc ID 24160 and 24161.
22. Permit Amendment Application, Johnston County MSW Landfill, Phase 4A, Cell 3. Prepared by
Smith Gardner, Inc., Raleigh, NC. April 2014, amended through May 2015. Doc ID 24165 and
24166.
23. CQA Report, Johnston County C&D Landfill, Area 2 Cell 2. Prepared by Smith Gardner,
Raleigh, NC. April 2017. Doc ID 27741.
24. Application for Permit to Construct Application, MSW Phase 6 and Application for Vertical
Expansion of MSW Phase 4A. Prepared by Smith Gardner, Raleigh, NC. April 2019, revised
through May 2020. Main application - File ID 1389226. Sedimentation and Erosion Control -
File ID 1389798. Design Hydrogeologic Report - File IDs 1405296 and 1405299. Water
Quality Monitoring Plan - File ID 1390438. Landfill Gas Monitoring Plan - File ID 1377148.
- End of Section -
ATTACHMENT 2
CONDITIONS OF PERMIT TO CONSTRUCT
This permit approves the construction of MSW unit Phase 6. The initial, substantial,
construction authorized by this Permit to Construct must commence within 18 months from the
issuance date of this permit (May 8, 2020). If substantial construction does not begin within 18
months from the issuance date of this permit, then the permit to construct shall expire.
Substantial construction includes, but is not limited to, issuance of construction contracts,
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 7 of 16
mobilization of equipment onsite, and construction activities including installation of
sedimentation and erosion control structures. The permittee may reapply for the permit to
construct prior to the expiration date. The re -application will be subject to the statutes and rules
in effect on that date and may be subject to additional fees.
2. The permittee must conduct a preconstruction meeting at the facility prior to initiating
construction of any unit/cell and must notify the Section at least 10 days prior to the meeting.
Construction of all solid waste management units within this facility must be in accordance with
the approved plans and only for those phases of development approved for construction as
described in the list of approved documents in Attachment 1.
4. Modifications or revisions of the approved documents or changes during construction of any
landfill unit/cell require approval by the Section, and may constitute a permit modification.
Construction of groundwater monitoring wells and landfill gas monitoring wells, and
abandonment of groundwater and landfill gas wells, shall be in accordance with the conditions of
Attachment 3, Monitoring and Reporting Conditions.
6. Any modifications in sedimentation and erosion control activities require approval by the Land
Quality Section. The Section must be notified of any sedimentation and erosion control
modifications.
7. Burning of land -clearing debris generated on -site as a result of construction activities requires
approval by the Section prior to initiating the burn. The facility must also ensure the activity is
in compliance with all air pollution and open burning laws, regulations, and ordinances.
In areas with streams and/or wetlands, the permittee shall provide to the Section an electronic
(pdf) copy of the 404/401 approval from the U.S. Army Corps of Engineers and/or the NCDEQ
Division of Water Resources, prior to construction in the affected areas.
9. MSW landfill units identified as future phases (Phases 7 through 10) are deemed suitable for
preparation of a permit application in accordance with Solid Waste Rule 15A NCAC 13B
.1618(a)(1). An application for a permit approval to construct for each phase, prepared in
accordance with applicable statutes and rules in effect on that date, must be submitted to the
Section for approval.
10. The following requirements must be met prior to operation of any newly constructed area in
Phase 6:
a. Abandonment records for the monitoring wells within the Phase 6 footprint, MW-5-2, MW-
5-3, and MW-5-4, shall be submitted to the Section.
b. Construction Quality Assurance (CQA) documentation and a certification by the project
engineer that the unit was built in accordance with approved plans and the conditions of the
permit must be submitted to the Section for review and approval.
c. The edge of waste footprint must be identified with permanent physical markers.
d. The Permittee must contact the regional environmental specialist and permitting engineer to
determine whether the Section chooses to hold a pre -operative meeting with key landfill
personnel and representatives of the Section.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 8 of 16
e. Documentation of financial assurance mechanisms must be submitted to the Section. The
financial assurance amount must include closure and post -closure costs including the new
area to receive the permit to operate.
f. The Permittee must obtain a permit to operate for the unit from the Section.
g. Groundwater monitoring wells MW-6-1 and MW-6-2 must be installed, developed, and
added to the routine monitoring schedule. New site plan drawings showing the location and
identification of the new and existing wells must be submitted to the Section.
- End of Section —
ATTACHMENT 3
CONDITIONS OF OPERATING PERMIT
PART I: GENERAL FACILITY CONDITIONS
In accordance with 130A-294 (a2), this permit is for the life -of -site. Life -of -site ends when the
facility reaches its final permitted elevations but no later than August 6, 2057. Sixty years from
the initial approval to receive waste of the lined units is August 6, 2057. Continued operation
after this date will require a permit renewal in accordance with rules and requirements at that
time.
2. This facility is permitted to receive non -hazardous solid waste generated within the State of
North Carolina, consistent with local government waste management plans(s) and with local
government approval and as defined in G.S. 130A-290(a) (35), except where prohibited by the
North Carolina General Statutes Article 9 of Chapter 130A, and the rules adopted by the
Commission for Health Services.
3. The following must not be accepted for disposal: hazardous waste, yard trash, liquid wastes,
regulated medical waste, sharps not properly packaged, PCB waste as defined in 40 CFR 761,
and wastes banned from disposal in North Carolina by G.S. 130A-309.10(f).
4. The annual disposal rate for the MSW and C&D units must be no more than 401,000 tons per
year, for years 2016-2025, and no more than 425,000 tons per year, for years 2026-2035. No
more than 156,000 tons per year shall be waste generated outside of Johnston County, in
accordance with the local government approval issued for this facility, dated January 3, 2006.
Reference File ID 1390279.
5. The permittee must not knowingly dispose of solid waste that is generated within the boundaries
of a unit of local government that by ordinance:
a. Prohibits generators or collectors of solid waste from disposing of that type or form of solid
waste.
b. Requires generators or collectors of solid waste to recycle that type or form of solid waste.
6. The facility operator must complete an approved operator training course in compliance with
G.S. 130A-309.25.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 9 of 16
a. A responsible individual certified in landfill operations must be on -site during all operating
hours of the facility while open for public use to ensure compliance with operational
requirements.
b. All pertinent landfill -operating personnel must receive training and supervision necessary to
properly operate the landfill units in accordance with G.S. 130A-309.25 and addressed by
memorandum dated November 29, 2000.
7. The facility must be adequately secured by means of gates, chains, berms, fences, or other
security measures approved by the Section to prevent unauthorized entry.
Signs must be posted at the entrance to the facility that state types of waste that can and cannot
be received at the facility, the hours of operation, the permit number(s), contact name, telephone
number, and other pertinent information. Traffic signs or markers must be provided as necessary
to promote an orderly traffic pattern to and from the operating areas and to maintain efficient
operating conditions.
9. Interior roadways must be of all-weather construction and maintained in good condition. Fire
lanes must be maintained and passable at all times. Dimensions of the fire lanes must be
coordinated with the Fire Marshall having jurisdiction over the site.
10. Permanent physical markers must be maintained to identify the edge of the approved waste
disposal boundary. Boundaries must be marked for all active and inactive/filled landfill units.
11. The permittee must actively employ a screening program at the facility for detecting and
preventing the disposal of excluded or unauthorized waste. At a minimum, the program must
include:
a. Random inspections of incoming loads or other comparable procedures.
b. Records of any inspections.
c. Training of personnel to recognize hazardous, liquid, and other excluded waste types.
d. Development of a contingency plan to properly manage any identified hazardous, liquid, or
other excluded or unauthorized wastes. The plan must address identification, removal,
storage, and final disposition of these wastes.
12. In accordance with 130A-295.6, this landfill may use alternative daily cover (ADC) that has been
previously approved at another sanitary landfill in North Carolina. The Section maintains a list
of approved ADC and its appropriate use, which may be referred to, but is not required to be, in
determining ADC types and uses. The owner must follow the implementation notice and
notification requirements of the guidance document Approved Alternative Daily Cover Materials
for Use at Sanitary Landfills.
a. The use of ADC that does not meet the condition above requires approval of the Section prior
to implementation. Requests for ADC approval must include a plan detailing the
comprehensive use and a demonstration of the effectiveness of the alternative cover,
developed according to Section guidelines. Plans that are approved by the Section will be
added to the list of approved documents in Attachment 1.
b. The use of tarps and auto shredder fluff are approved as alternate cover.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 10 of 16
c. The permittee must maintain records for all solid waste materials accepted and used as ADC.
The records must include: the date of receipt, weight of material, general description of the
material, identity of the generator and transporter, and county of origin. Records must be
made available to the Section upon request.
d. The application of ADC materials in excess of normal application of daily cover of the
material shall constitute disposal.
13. The leachate collection system must be cleaned and maintained in accordance with 15A NCAC
13B.1626(12)(a), NCGS 130A-295.6 (h)(3), and the approved plan. Remote camera inspections
of leachate lines must be conducted upon completion of construction and at least once every five
years. Cleaning of leachate collection lines must be conducted as necessary for proper
functioning and to address buildup of leachate on the liner. Any blockages encountered must be
repaired and reported to the Section. Documentation of leachate line inspections, cleaning and
maintenance must be included in the operating record of the facility and provided to the Section
upon request.
14. The owner or operator must maintain a record of the amount of solid waste received at the
landfill units, compiled monthly. Scales must be used to weigh the amount of waste received.
15. Open burning of solid waste is prohibited. Fires must be reported to the Regional Waste
Management Specialist within 24 hours of the occurrence with a written notification to be
submitted within 15 calendar days of the occurrence.
16. Burning of land -clearing debris generated on -site, as a result of construction activities, requires
approval by the Section prior to initiating the burn. The facility must also ensure the activity is in
compliance with all air pollution and open burning laws, regulations, and ordinances.
17. Financial assurance for the MSW and C&D landfill units, as required by state rules and statutes,
must be continuously maintained for the duration of the facility in accordance with applicable
rules and statutes. Closure and Post -Closure cost estimates and financial instruments must be
updated annually pursuant to 15A NCAC 13B .1628.
18. Copies of this permit, the approved plans, and all records required to be maintained in the
operating record by the permittee must be maintained at the facility, unless otherwise approved
by the Section, and made available to the Section upon request.
Monitoring and Reporting Conditions
19. Groundwater, surface water, and landfill gas monitoring must be established and monitored as
identified in the approved monitoring plans. The permittee must obtain approval from the
Section for the design, installation, development or abandonment of any groundwater monitoring
well or landfill gas monitoring well. Any modification to the approved monitoring plans must
be submitted to the Section Hydrogeologist for review.
20. A licensed geologist must be present to supervise the installation of any new groundwater
monitoring wells and landfill gas monitoring wells.
21. Within thirty (30) days of the completed construction of each new groundwater monitoring well
and landfill gas monitoring well, the well construction record (GW-1 form), well schematic,
boring log, field log and notes, and description of well development activities must be submitted
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 11 of 16
to the Section. Within thirty (30) days of the completed permanent abandonments of a
groundwater monitoring well and landfill gas monitoring well, the well abandonment record
(GW-30 form) and any additional information included in the abandonment record must be
submitted to the Section.
22. Each groundwater monitoring well and landfill gas well must be surveyed for location and
elevation. Each groundwater monitoring well and landfill gas monitoring well must have an
identification plate permanently attached to the well, in accordance with 15A NCAC 2C .0108.
23. Groundwater, surface water, and landfill gas monitoring shall be conducted in accordance with
the approved monitoring plans. Any modification to the approved monitoring plans must be
submitted to the Section Hydrogeologist for review.
24. Groundwater monitoring wells and surface water sampling locations must be sampled for the
constituents listed in the approved monitoring plan, at least semi-annually, according to the
approved plan and the current policies and guidelines of the Section in effect at the time of
sampling. Groundwater monitoring for the C&D units must be conducted in accordance with
15A NCAC 13B .1630 through .1633. Landfill gas monitoring must be conducted quarterly in
accordance with applicable Rules and the approved landfill gas monitoring plan. Assessment
monitoring must continue in accordance with the Solid Waste Management Rules and any
additional requirements set forth by the Section.
25. The four independent samples which comprise the initial baseline sampling event must be
collected from each groundwater monitoring well and the report must be submitted to the Section
within six months after issuance of the Permit to Operate.
26. Untreated leachate must be sampled and analyzed at least semi-annually concurrently with the
water quality monitoring. The leachate must be analyzed for all Appendix I constituents, pH,
specific conductance, BOD, COD, phosphate, nitrate, and sulfate. Test results must be submitted
to the Section along with the water quality monitoring results. In the event leachate is
recirculated, additional leachate sampling may be required.
27. Reports of the analytical data for each water quality monitoring event must be submitted to the
Section within 120 days of the sample collection date. The permittee must provide a
potentiometric surface map for the current sampling event that shows groundwater and surface
water sampling locations, and all new, existing, and abandoned groundwater well locations.
Analytical data must be submitted in a manner prescribed by the Section.
28. A readily accessible unobstructed path must be maintained so that monitoring wells and surface
water sampling locations are accessible using four-wheel drive vehicles.
29. All landfill gas monitoring must be conducted by properly trained personnel. Landfill gas
monitoring must include interior monitoring of onsite buildings. Landfill gas monitoring results
must be recorded on forms provided by the Section and be maintained in the facility's operating
record.
30. Documentation of well completion, development details, repair, abandonment, and all other
pertinent activities associated with each monitoring well and all sampling activities associated
with each groundwater well, landfill gas monitoring well, surface water location, and leachate
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 12 of 16
sampling location must be maintained in the facility operating record. Records of all monitoring
events and analytical data must be kept as part of the operating record.
Erosion and Sedimentation Control Requirements
31. All earth disturbing and sedimentation and erosion control activities must be conducted in
accordance with the Sedimentation Control Act N.C.G.S. 113A-50, et seq., and rules
promulgated under 15A NCAC 4, and must be consistent with any other local, state, or federal
requirements. All required sedimentation and erosion control measures must be installed and
operable to mitigate excessive on -site erosion and to prevent silt from leaving the area of the
landfill unit during the service life of the facility.
32. Modifications to the approved sedimentation and erosion control activities require approval by
the North Carolina Land Quality Section. The Section must be notified of any sedimentation and
erosion control plan modifications.
33. Facility construction, operations or practices must not cause or result in a discharge of pollution,
dredged material, and/or fill material into waters of the state in violation of the requirements
under Sections 402 and 404 of the Clean Water Act, as amended.
PART II: MUNICIPAL SOLID WASTE LANDFILL SPECIFIC CONDITIONS
34. This permit approves the vertical expansion of Phase 4A, the continued operation of Phase 4A,
as well as the onsite environmental management and protection facilities as described in the
approved plans. Phase 4A is a lined MSW unit that piggy -backs the unlined MSW units 3 and 4.
35. The following table lists the dimensions and details for the lined MSW landfill units, both
existing and planned. Gross capacity is the measured volume between the bottom of waste and
the top of final cover.
Lined (Subtitle D)
MSW Units
Acres
Gross Capacity
(cubic yards)
Approximate
Service Years'
Phase 5
19.2
1,087,199
Inactive
Phase 4A2
29.4
3,443,753
2.9 — 3.8
Phase 63
19.7
2,396,265
8 - 12
Phase 74
23.4
2,841,196
9.5 — 14.2
Phase 8
19.8
3,122,359
10.4 —15.6
Phase 9
23.1
1,558,088
5.2 — 7.8
Phase 10
18
4,360,867
13.2 —19.8
Total (Lined)
152.6
18,809,727
49.2 — 73.2
'Life expectancy as calculated June 2018.
2Phase 4A capacity includes vertical expansion approved May 2020.
PPhase 6 is approved for construction but not yet approved for disposal.
4Applications must be submitted to the Section for review and approval prior to the construction and
operation of Phases 7 through 10.
36. Adjustments to the landfill capacity that would result in a total capacity of 21,890,000 cubic
yards or more would require a substantial amendment to the permit. This total capacity consists
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 13 of 16
of the capacity of the lined MSW and C&D landfill units: MSW Phases 4A, and 5 through 10,
and C&D Areas 1 and 2.
37. The facility is permitted to co -dispose of wastewater treatment sludge generated within the
facility's approved service area, and subject to the terms and procedures of the approved plan.
38. Closure or partial closure of any MSWLF unit must be in accordance with the Closure Plans
described in the approved plans and 15A NCAC 13B .1629. Final Closure Plans must be
submitted to the Division at least 90 days prior to implementation.
39. The use of leachate recirculation as a leachate management tool requires approval by the Section
prior to implementation. Requests for leachate recirculation approval must include a
comprehensive management plan developed according to Section guidelines. Plans which are
approved by the Section will be included in the list of approved documents in Attachment 1.
40. On or before August 1 annually, the Permittee must submit an annual facility report to the
Section, on forms prescribed by the Section.
a. The reporting period shall be for the previous year beginning July 1 and ending June 30.
b. The annual report must list the amount of waste received and landfilled in tons and be
compiled:
i. On a monthly basis.
ii. By county, city or transfer station of origin.
iii. By specific waste type.
iv. By disposal location within the facility.
v. By diversion to alternative management facilities.
c. A measurement of volume utilized in the MSW cells must be performed during the second
quarter of the calendar year. The date and volumes, in cubic yards, must be included in the
report.
d. The amount of MSW waste, in tons from scale records, disposed in landfill cells since
August 6, 1997 through the date of the annual volume survey must be included in the report.
e. The completed report must be forwarded to the Regional Waste Management Specialist for
the facility by the date due on the prescribed annual facility report form.
f. A copy of the completed report must be forwarded to each county manager for each county
from which waste was received at the facility. Documentation that a copy of the report has
been forwarded to the county managers must be sent to the Regional Waste Management
Specialist by the date due on the prescribed annual facility report form.
PART III: CONSTRUCTION AND DEMOLITION DEBRIS UNIT SPECIFIC CONDITIONS
41. This permit approves the continued operation of Area 2 for the disposal of C&D waste. The
following table lists the dimensions and details for the C&D landfill units, both existing and
planned. Gross capacity is defined as the volume measured from the bottom of waste through
the top of final cover.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 14 of 16
C&D Units
Acres
Gross Capacity
(cubic yards)
Approximate
Service Years'
Area 1
16.2
614,472
Closed
Area 2
15.8
873,334
1.6 — 2.7
Total
32.0
1,487,806
1.6 — 2.7
'Life expectancy as calculated June 2018.
42. The C&DLF unit is permitted to receive construction and demolition waste and land clearing and
inert debris as follows:
a. C&D solid waste as defined in 15A NCAC 13B, Rule .0532(8) means solid waste generated
solely from the construction, remodeling, repair, or demolition operations on pavement and
buildings or structures. C&D waste does not include municipal and industrial wastes that
may be generated by the on -going operations at buildings or structures.
b. Inert debris as defined in NCGS 130A-290 (a) (14) means solid waste that consists solely of
material such as concrete, brick, concrete block, uncontaminated soil, rock, and gravel.
c. Land Clearing Waste as defined in G.S. 13OA-290 (a)(15) means solid waste which is
generated solely from land clearing activities, limited to stumps, trees, limbs, brush, grass,
and other naturally occurring vegetative material.
d. Asphalt in accordance with G.S. §130A-294(m).
43. The C&DLF unit must not accept wastes excluded for disposal as specified in 15A NCAC 13B,
Rule .0542(e).
44. The leachate collection system within the C&D units must be operated to remove leachate from
the landfill in such a way as to ensure that the leachate head on the liner does not exceed one foot
under normal operating conditions.
45. The C&D units must be closed in accordance with the approved plan and the requirements of the
Section at the time of closure. A final closure plan must be submitted for review at least ninety
(90) days prior to closure of any phase of the C&D landfill units.
46. On or before August 1 annually, the Permittee must submit an annual facility report to the
Section, on forms prescribed by the Section.
a. The reporting period shall be for the previous year beginning July 1 and ending June 30.
b. The annual report must list the amount of waste received and landfilled in tons and be
compiled:
i. On a monthly basis.
ii. By county, city or transfer station of origin.
iii. By specific waste type.
iv. By disposal location within the facility.
v. By diversion to alternative management facilities.
c. A measurement of volume utilized in the C&D cells must be performed during the second
quarter of the calendar year. The date and volumes, in cubic yards, must be included in the
report.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 15 of 16
d. The amount of C&D waste, in tons from scale records, disposed in landfill cells since August
24, 2007, through the date of the annual volume survey must be included in the report.
e. The completed report must be forwarded to the Regional Waste Management Specialist for
the facility by the date due on the prescribed annual facility report form.
f. A copy of the completed report must be forwarded to each county manager for each county
from which waste was received at the facility. Documentation that a copy of the report has
been forwarded to the county managers must be sent to the Regional Waste Management
Specialist by the date due on the prescribed annual facility report form.
PART IV: POST -CLOSURE SPECIFIC CONDITIONS FOR THE UNLINED MSW
LANDFILL UNITS AND CONSTRUCTION AND DEMOLITION DEBRIS UNIT
47. Unlined MSW landfill units Phase 1 and 2 were closed prior to October 1993, and unlined MSW
landfill units Phase 3 and 4 were closed in 1999. An enhanced closure cap was also installed
over Phases 1 and 2 in 1999. C&D landfill Area 1 is located on top of unlined MSW Phase 4,
and was closed in 2011.
48. The integrity and effectiveness of the cap system must be maintained. Maintenance and repairs
to the cover must be conducted as necessary to correct the effects of settlement, subsidence,
erosion, or other events, and to prevent surface water from impounding over waste, and run-on
and run-off from eroding or otherwise damaging the cap system. Mowing and removal of trees
on the final cover is required at least once per year.
49. Any post -closure use of the property, including but not limited to, residential, commercial,
industrial, agricultural, or recreational use, is subject to review and approval by the Section and
must not disturb the integrity of the cap system, or the function of the monitoring systems. The
Section may approve any other disturbance if the owner or operator demonstrates that
disturbance of the cap system, including any removal of waste, will not increase the potential
threat to human health or the environment.
50. The permittee must conduct groundwater and surface water sampling in accordance with the
approved groundwater monitoring plan, corrective action program, and the N.C. Solid Waste
Management Rules (1600 et seq.).
51. Permanent physical markers must be maintained to identify the edge of the waste disposal
boundary.
PART V: MISCELLANEOUS SOLID WASTE MANAGEMENT UNIT SPECIFIC
CONDITIONS
Yard Waste Processing and Storage Unit
52. Yard waste must be managed within the approved boundaries, reference Doc ID 27823.
Management of yard waste in areas of the facility other than that referenced above, require
written approval of the Section.
53. The yard waste processing area must be operated in accordance with the Rules for Solid Waste
Compost Facilities, 15A NCAC 13B .1401 et seq, as applicable, and the approved plan,
reference File ID 1389226, pdf page 426.
Facility Permit No: 5103
Johnston County MSW & C&D Landfill
May 8, 2020
File ID: 1389224
Page 16 of 16
Recycling Collection Areas
54. Recycling areas, including the white goods, battery, waste oil, and tire collection areas, must be
located in areas of the facility as shown on Drawing S 1, Doc ID 1389226, pdf page 645, and
operated in accordance with the approved plans. The Section must be notified of any planned
changes to the locations of these processing or collection areas.
55. Wastes and recyclables must be stored in reasonably sized areas or piles with adequate fire
breaks and lanes.
56. Surface water must be diverted from all operational and storage areas to prevent standing water.
57. White goods containing refrigerants must be stored upright and handled in a manner to prevent
leakage. Refrigerants must be properly removed by trained personnel prior to removal off -site
for recycling.
- End of Permit Conditions —
ROY COOPER
Gfive/ tvr
MICHAEL S. REGAN
Sc(retar).
BRIAN WRENN
.4c1Jnq Uirr: for
NORTH CAROLINA
Environmental Quality
May 18, 2020
LETTER OF APPROVAL
Johnston County
ATTN: Rick J. Hester, County Manager
207 E. Johnston Street
Smithfield, NC 27577
RE: Project Name: Johnston County MSW Landfill — Phase 6
Project ID: JOHNS-2020-024
Approved Acres: 38.9 (not previously approved)
County: JOHNSTON City: Smithfield Address: County Home Road
River Basin: Neuse, Stream Classification: Other
Submitted By: Smith + Gardner Engineers
Date Received by LQS: May 14, 2020
Plan Type: Revised
Dear Mr. Hester:
The subject erosion and sedimentation control plan has been approved. The enclosed Certificate of
Approval must be posted at the job site. This plan approval shall expire three (3) years following the date
of approval, if no land -disturbing activity has been undertaken, as is required by Title 15A NCAC 413.0129.
As of April 1, 2019, all new construction activities are required to complete and submit an electronic Notice
of Intent (eNOI) form requesting a Certificate of Coverage (COC) under the NCG010000 Construction
General Permit. After the form is reviewed and found to be complete, you will receive a link with payment
instructions for the $100 annual permit fee. After the fee is received, you will receive the COC via
email. You MUST obtain the COC prior to commencement of any land disturbing; activity. The eNOI
form may be accessed at deq.nc.gov/NCG01. Please direct questions about the eNOI form to Annette
Lucas at Annette. Lucas@ncdenngov or Paul Clark at Paul.Clark Damcdenr.gov. If the owner`operator of
this project changes in the future, the new responsible party is required to apply for hislher own COC.
Title 15A NCAC 4B .011$(a) and the NCGO1 permit require that the following documentation be kept on
file at the job site:
1. The approved E&SC plan as well as any approved deviation.
2. The NCGO1 permit and the COC, once it is received.
3. Records of inspections made during the previous 12 months.
r�,D'
EQNo)� tit Carolina Vcpar intent of Environmental Qunli:}' Vivl.;!on of Cncryy. hllncral and Lind i r,aur. cs
—
919.791.,Uoo
Ro1v:9 t Rr�1ional Oliirr Ih23 Ala ISCrv;ry C�rntvr :i800IMrrc1t ThM— R.rlciult. Nnrth C:arrdirta 271ot1`+
Letter of Approval
Johnston County
May 18, 2020
Page 2 of 2
Also, this letter gives the notice required by G.S. 113A-61.1(a) of our right of periodic inspection to insure
compliance with the approved plan.
Title 15A NCAC 413.0118(a) requires that a copy of the approved erosion control plan be on file at the job
site. Also, this letter gives the notice required by G.S. 113A-61.1(a) of our right of periodic inspection to
insure compliance with the approved plan.
North Carolina's Sedimentation Pollution Control Act is performance -oriented, requiring protection of
existing natural resources and adjoining properties. If, following the commencement of this project, it is
determined that the erosion and sedimentation control plan is inadequate to meet the requirements of the
Sedimentation Pollution Control Act of 1973 (North Carolina General Statute 113A-51 through 66), this
office may require revisions to the plan and implementation of the revisions to ensure compliance with the
Act.
Acceptance and approval of this plan is conditioned upon your compliance with Federal and State water
quality laws, regulations, and rules. In addition, local city or county ordinances or rules may also apply to
this land -disturbing activity. This approval does not supersede any other permit or approval.
Please note that this approval is based in part on the accuracy of the information provided in the Financial
Responsibility Form, which you provided. You are requested to file an amended form if there is any change
in the information included on the form. This permit allows for a land -disturbance, as called for on the
application plan, not to exceed the approved acres. Exceeding the acreage will be a violation of this permit
and would require a revised plan and additional application fee. In addition, it would be helpful if you notify
this office of the proposed starting date for this project. Please notify us if you plan to have a preconstruction
conference.
Your cooperation is appreciated.
Sincerely,
15,4S*de
Sally Castle, El
Regional Engineering Associate
Land Quality Section
Enclosures: Certificate of Approval
NPDES NCGO1 Fact Sheet
cc: Pieter K. Sheer, PE (pieterftsmithgardnerinc.com ) Electronic Copy
Regional Office File
Appendix
Design Clarifications and Modifications
Construction Quality Assurance Report
Johnston County MSW Landfill- Phase 6A
Smithfield, North Carolina
SMITH GARDNER
Project:
Johnston County MSW Landfill - Phase 6A
Smithfield, North Carolina
Owner:
Johnston County Department of Solid Waste Services
680 County Home Road
Smithfield, North Carolina 27577
Contractor:
Shamrock Environmental Corp.
ATTN: Bryan Gaidanowicz
6106 Corporate Park Drive
Browns Summit, NC 27410
Reference(s):
Culvert Schedules shown on Drawing S2 and Drawing EC1
Design Clarification No.
Regulatory Review Required (Y/N): N
*If Yes, see below.
Strike out the culvert schedule on Drawing S2 (Subgrade Grading and Drainage Plan). Refer instead to the culvert schedule shown on Drawing EC1 (Phase 6A Erosion and Sedimentation
Control Plan) which is correct.
Reason for Clarification(sl:
Discrepancies between the culvert schedules shown on Drawings S2 and EC1
Attachments:
None
Regulatory Agency:
ATTN:
Digitally signed by Pieter K. Scheer, P.E.
Pieter
K. Scheer, Gardner, Inc.,
K. Scheer P.E
ou, emaPieter
er@smiithgar, erSmith
� u,email=pieter@smithgardnerinccom, c=US
Date: 2020.07.0211:20:17-04'00'
BY:
Pieter K. Scheer, P.E.
Title:
Project Manager
Date:
July 2, 2020
Distribution: I X Owner I Contractor I Field I File I IRegulatoryAgency
SMITH GARDNER
Project:
Johnston County MSW Landfill - Phase 6A
Smithfield, North Carolina
Owner:
Johnston County Department of Solid Waste Services
680 County Home Road
Smithfield, North Carolina 27577
Contractor:
Shamrock Environmental Corp.
ATTN: Bryan Gaidanowicz
6106 Corporate Park Drive
Browns Summit, NC 27410
Reference(s):
Drawing S2 (Subgrade Grading and Drainage Plan)
Design Modification No
Regulatory Review Required IY/NI: Y
*If Yes, see below.
NOTE: Each modification described herein is a revision of a
previously approved permit and/or design feature.
A French drain network is being added to Phase 6A as shown on the attached Figure 1. It is expected that the layout of the drain will be adjusted as needed including addition of laterals
based on actual field conditions. However, the top of the drains (top of stone for perforated piping/stone) will be a minimum of 4.0 feet below the finished subgrade elevations. The water
collected in the drain will be outleted to the north of Phase 6A into Sediment Basin 3W.
Reason for Modification(s):
To address soft and wet subgrade conditions in the eastern and central portions of Phase 6A which were occurring due to groundwater seepage and significantly above average rainfall.
Attachments:
Figure 1 (Phase 6A Construction Dewatering Plan)
Regulatory Agency: NC DEO - DWM - Solid Waste Section
ATTN: Donna Wilson/Christine Ritter
donna.wilson(a)ncdenr.aov
ch ristine. ritter(a)ncdenr.aov
DocuSigned by:
PsA4 Z
5MB31996A674D7...
By:
Pieter K. Scheer, P.E.
Title:
Project Manager
Date:
October 9, 2020
Distribution: I X Owner I Contractor I Field I File I RegulatoryAgency
Jpo�f���i
FRENCH DRAIN
(SEE NOTES 1,2,& 4)
'OILD Pl� 176 183 ` —z20
(6"0 CPE (TYPE S))
1 i i(TYP.) (SEE NOTE 2) 194 \ )
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mith Gardner, Inc.
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190
�—
LEGEND
200EXISANG 10' CONTOUR (SEE REFERENCE 1)
— — — — — — EXISANG 2' CONTOUR
200 PROPOSED 10' CONTOUR (SEE REFERENCE 2)
PROPOSED 2' CONTOUR
FRENCH DRAIN (SEE NOTES 1, 2, & 4)
SOLID PIPE (SEE NOTE 2)
195 BOTTOM OF TRENCH ELEVATION (SEE NOTE 3)
NOTES
1. ADJUST ALIGNMENT AND ADD LATERALS AS NEEDED TO
ADDRESS WET AREAS.
2. MAINTAIN 1% FALL ON PIPE.
3. BOTTOM OF TRENCH ELEVATIONS CAN BE LOWER IF NEEDED TO
CAPTURE FLOW.
4. MAINTAIN 4.0' MIN. FROM TOP OF STONE TO FINISHED
SUBGRADE.
REFERENCE
1. SITE BASE TOPOGRAPHY PROVIDED BY SHAMROCK
ENVIRONMENTAL CORPORATION OCTOBER 2020.
2. DESIGN GRADES PER DRAWING S2 OF THE CONSTRUCTION
PLANS TITLED "JOHNSTON COUNTY MSW LANDFILL PHASE 6A
CONSTRUCTION DRAWINGS", PREPARED BY SMITH GARDNER, INC.
DATED APRIL 2020.
TOP OF SUBGRADE
TYPE GT—S GE" XTILE WRAP
4.0 MIN.
NCDOT NO 57
(OR SIMILAR) STONE//�//\IT,
/j /i;� 6'0 PERFORATED PIPE
\(CPE TYPE SP)
I* BEDDING
FRENCH DRAIN
DETAIL
NOT TO SCALE FIG.1
z
w W
J�
z�
a
U a
Z U
s �
-
c U
C�
m
z
CD
N
O
N
Appendix
Photographic Log
Construction Quality Assurance Report
Johnston County MSW Landfill- Phase 6A
Smithfield, North Carolina
,3+ 6 ENa1NEER5
Client Name:
Johnston County, North Carolina
Photo No. Date:
j 6/25/20
Direction Photo Taken:
South
Description:
Site Clearing
Site Location:
Johnston County MSW Landfill - Phase 6A
PHOTOGRAPHIC LOG
Project No.
JOHNSTON-19-4