0403_AnsonLF_Mod_20240118

Weaver
Consultants
� Group
Donna Wilson, P.E.
Division of Waste Management
North Carolina Department of Environmental Quality
1646 Mail Service Center
Raleigh, North Carolina 27699
January 18, 2024
Project No. 0601-369-11-04
Re: Phase 4 Cell 2 East Minor Modification
Anson County Landfill, Anson County, North Carolina
Permit Number 04-03
Dear Ms. Wilson:
Weaver Consultants Group, LLC on behalf of Chambers Development of North Carolina,
Inc. is submitting this minor modification application for Phase 4 Cell 2 East leachate
collection system. The following section describes how leachate will be
collected/managed in the Phase 4 Cell 2 East area.
1). Phase 4 Cell 2 East leachate will flow to the temporary extraction point located at
the southern end of the cell. (See Drawing 2)
2). A pump will be inserted into the interim riser to pump leachate from the
temporary extraction point. The 4-inch temporary forcemain will be connected
into the side of the interim riser with a tee. (See Drawing 4, Detail L7)
3). A generator will be used to power the pump. It is anticipated that the pump will
be turned on/off manually.
4). Leachate will be pumped from the extraction point through the 4-inch temporary
forcemain to the 2023 previously installed forcemain and ultimately conveyed to
the existing leachate storage area located in the southern side of the Phase 1 area.
(See Drawing 213)
The leachate collection system is detailed in the drawings included in Attachment 1.
During the course of your review, if you have any questions or require further
information, please call.
Sincerely,
Weaver Consultants Group, LLC
Jonathan V. Queen, P.E.
Project Director
6420 Southwest Blvd • Suite 206 • Fort Worth, Texas 76109 • 817.735.9770 • wcgrp.com • Offices Nationwide

Donna Wilson, P.E.
January 18, 2024
Attachments: Attachment 1: Phase 4 Cell 2 East Minor Modificaton Drawings
cc: Brady Stewart, Chambers Development of North Carolina, Inc.
Tyler Fitzgerald, Chambers Development of North Carolina, Inc.
Matt Crockett, Chambers Development of North Carolina, Inc.
Q: WASTE CONNECTIONSIANSON COHNTYIPHASE 4 CELL 2 � PHASE 4 CELL 2 EASTI PHASE 4 CELL 2 MINOR MOD.DOC
2 Weaver Consultants Group

ATTACHMENT 1
PHASE 4 CELL 2 EAST MINOR MODIFICATION DRAWINGS

0
BASIN T13
(SEE NOTE 4) �B_13 SEE NOTE 6
11
-10 ` 36" CMP CULVERT �� >♦
� � r 300 \1
NIIII
N 460000 /
NOTE 5)
(SEE
-9
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Ln .:..
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290
.................
d::::(:::::::(::::::::::::(:::::::(::::::::::
.........................
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....... ....
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312
:C.:.:..:.:.:...:.:..:.:.:...:.:..:.:.::..:.:..:.:.:...::.......:.:.
....
.....................................
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1
00
1
1................ 3
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vs:..:.:.:..:.::.:...:.:...
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2023 CONSTRUCTION
BORROW AREA
I `:..:....:.-.:..:.-.:..:-.:....-.
g16
/ (SEE NOTE 4)
3:1.-=-06
i:.:.- ......:.:....:.......:: i:.:.3:1.::::::.: r
31
`
......
.......................
/
(SEE NOTES 5 AND 6)
..........
`
INTERCELL
TIE-IN
N 459521.55
E 1650923.71
1� i
O D v EXISTING TO
BE AVOIDED
INTERCELL TIE-IN
I V I
N 459989.89
I I
E 1651197.34
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INTERCELL TIE-IN
N 459598.80
E 1651167.28
u?
I
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330
- 330------
-
I \
I \
EXISTING PHASE 4 n
CELL 1 IJ
I I
I
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PHASE
i
I
0 50 100
SCALE IN FEET
LEGEND
- — — — — -
LIMITS OF WASTE
PHASE BOUNDARY
-
CELL BOUNDARY
350
EXISTING CONTOUR
N 460000
STATE PLANE GRID
320.5
PHASE 4 CELL 2 EAST CONSTRUCTED
SUBGRADE CONTOUR
314
PHASE 4 CELL 2 WEST SUBGRADE CONTOUR
- -4- — — f -
LEACHATE LINE
7Z/-JJ�7
TIE-IN ZONE
t 77717-7 f
INTERCELL TIE-IN ZONE
2023 PREVIOUSLY INSTALLED FORCEMAIN
0 B-9
DIGITIZED PIEZOMEfER OR WELL
DESIGNED TOP OF CLAY
LINER CONTOUR (SEE NOTE 2)
\
FUTURE PHASE 4 CELL 2 WEST
1
REDEVELOPMENT AREA
NOTES:
1. EXISTING CONTOURS AND ELEVATIONS PROVIDED BY
FIRMATEK, LLC. COMPILED FROM AERIAL PHOTOGRAPHY
FLOWN 02-20-2023.
2. PHASE 1 AND 2 DESIGN TOP OF CLAY LINER CONTOURS
OBTAINED FROM FIGURE 1-PERMIT AIRSPACE LINER
GRADES PREPARED BY CIVIL DESIGN SOLUTIONS, INC.
DATED 10-08-2018.
3. MONITORING WELLS AND PIEZOMETERS WERE DIGITIZED FROM
FIGURE 3, DETAILED SITE MAP, DATED JULY 2017 AND
DEVELOPED BY CEC, INCLUDED IN APPENDIX E OF THE
PERMIT APPLICATION ANSON COUNTY LANDFILL PHASE 5,
DATED 12-21-2018.
4. STORMWATER FROM THE NORTH SIDE OF PHASE 4 CELL 2
WILL BE DIRECTED TOWARD BASIN T13 DEVELOPED IN 2022.
MATERIAL FOR PHASE 4 CELL 2 CONSTRUCTION WILL COME
FROM THE 2023 CONSTRUCTION BORROW AREA. THE 2023
CONSTRUCTION BORROW AREA WILL BE GRADED TO DRAIN
TOWARD BASIN 9 DEVELOPED IN 2022. THE SITE EROSION
CONTROL PLAN WILL BE UPDATED TO INCORPORATE 2023
CONSTRUCTION ACTIVITIES.
5. THIS REVISED SUBGRADE PLAN IS DEVELOPED UNDER THE
ASSUMPTION THAT THE PERIMETER CHANNEL, ACCESS
ROAD, AND TRUCK PAD WAS BUILT TO THE GRADES
INCLUDED IN THE 05/31/2023 CONSTRUCTION PLANS.
6. SITE TO DETERMINE LOCATION AND DEVELOPMENT OF CELL
ACCESS LOCATION BASED ON OPERATION CONDITIONS.
COPYRIGHT ® 2024 WEAVER CONSULTANTS GROUP, LC. ALL RIGHTS RESERVED.

EXISTING PHASE 2 \
I r\
I / o
I /
3 8
30 -
41
- 00-
i9 \\
\
' CHECK VALVE INSTALLATION
I
JUST INSIDE RAINFLAP BERM/CELL
VUA' �N9f
D EXISTING CULVERT TO - _ - N : • Q I l=,
BE AVOIDED-320-- _ _ SEA4 +
Lj
051678
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PHASE
N
r
0 50 100
SCALE IN FEET
I EGENt7
— — - LIMITS OF WASTE
PHASE BOUNDARY
- CELL BOUNDARY
350 EXISTING CONTOUR
N 460000 STATE PLANE GRID
322.5 PHASE 4 CELL 2 EAST CONSTRUCTED
TOP OF PROTECTIVE COVER CONTOUR
319.5 PHASE 4 CELL 2 WEST TOP OF
PROTECTIVE COVER CONTOUR
i - f — — f - LEACHATE LINE
7��/7JJJJ7 TIE-IN ZONE
7��/7JJjj INTERCELL TIE-IN ZONE
2023 PREVIOUSLY INSTALLED FORCEMAIN
0 B-9 DIGITIZED PIEZOMETER OR WELL
DESIGNED TOP OF CLAY
----300----- LINER CONTOUR (SEE NOTE 2)
(SEE
PREVIOUSLYNOTE 5) STALLED SILT FENCE
\ — — — — TEMPORARY 4" SDR-11 FORCEMAIN
1 FUTURE PHASE 4 CELL 2 WEST
REDEVELOPMENT AREA
1 NOTES:
1. EXISTING CONTOURS AND ELEVATIONS PROVIDED BY
FIRMATEK, LLC. COMPILED FROM AERIAL PHOTOGRAPHY
\ FLOWN 02-20-2023.
2. PHASE 1 AND 2 DESIGN TOP OF CLAY LINER CONTOURS
OBTAINED FROM FIGURE 1-PERMIT AIRSPACE LINER
GRADES PREPARED BY CIVIL DESIGN SOLUTIONS, INC.
DATED 10-08-2018.
3. MONITORING WELLS AND PIEZOMETERS WERE DIGITIZED FROM
FIGURE 3, DETAILED SITE MAP, DATED JULY 2017 AND
DEVELOPED BY CEC, INCLUDED IN APPENDIX E OF THE
PERMIT APPLICATION ANSON COUNTY LANDFILL PHASE 5,
DATED 12-21-2018.
4. STORMWATER FROM THE NORTH SIDE OF PHASE 4 CELL 2
WILL BE DIRECTED TOWARD BASIN T13 DEVELOPED IN 2022.
MATERIAL FOR PHASE 4 CELL 2 CONSTRUCTION WILL COME
FROM THE 2023 CONSTRUCTION BORROW AREA. THE 2023
CONSTRUCTION BORROW AREA WILL BE GRADED TO DRAIN
TOWARD BASIN 9 DEVELOPED IN 2022. THE SITE EROSION
CONTROL PLAN WILL BE UPDATED TO INCORPORATE 2023
CONSTRUCTION ACTIVITIES.
5. THIS REVISED SUBGRADE PLAN IS DEVELOPED UNDER THE
ASSUMPTION THAT THE PERIMETER CHANNEL, ACCESS
1 ROAD, AND TRUCK PAD WAS BUILT TO THE GRADES
INCLUDED IN THE 05/31/2023 CONSTRUCTION PLANS.
6. SITE TO DETERMINE LOCATION AND DEVELOPMENT OF CELL
ACCESS LOCATION BASED ON OPERATION CONDITIONS.
7. CONTRACTOR TO REMOVE PORTIONS OF ACCESS TRUCK
PAD TO ALLOW FOR DEVELOPMENT OF REVISED WESTERN
PORTION EXCAVATION PLAN AND TEMPORARY SUMP.

FLOW TO LEACHATE
STORAGE AREA
0
50 100
SCALE IN FEET
I EGENt7
- - - - - -
LIMITS OF WASTE
PHASE BOUNDARY
-
CELL BOUNDARY
350
EXISTING CONTOUR
N 460000
STATE PLANE GRID
322.5
PHASE 4 CELL 2 EAST CONSTRUCTED
TOP OF PROTECTIVE COVER CONTOUR
319.5
PHASE 4 CELL 2 WEST TOP OF
PROTECTIVE COVER CONTOUR
- f - - f -
LEACHATE LINE
7��/7JJJJ7
TIE-IN ZONE
7��/7JJjj
INTERCELL TIE-IN ZONE
2023 PREVIOUSLY INSTALLED FORCEMAIN
PREVIOUSLY INSTALLED
PHASE 4 CELL 1 FORCEMAIN
0 B-20
DIGITIZED PIEZOMETER OR WELL
PREVIOUSLY INSTALLED SILT FENCE
TEMPORARY 4" SDR-11 FORCEMAIN
FUTURE PHASE 4 CELL 2 WEST
REDEVELOPMENT AREA
DIRECTION OF LEACHATE FLOW
NOTES:
1. EXISTING CONTOURS AND ELEVATIONS PROVIDED BY
FIRMATEK, LLC. COMPILED FROM AERIAL PHOTOGRAPHY
FLOWN 02-20-2023.
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051678
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01 /18/2024
COPYRIGHT ® 2024 WEAVER CONSULTANTS GROUP, LC. ALL RIGHTS RESERVED.

24" PROTECTIVE COVER
K > 1.9x10-4 cm/s
2'-0" 60-MIL TEXTURED
HDPE GEOMEMBRANE
1'-6"
I—III=1 .
DEPTH
VARIES 1
PREPARED SUBGRADE NATURAL 3
INORGANIC SOIL OR COMPACTED
STRUCTURAL FILL i
18" COMPACTED CLAY LINER
K < 1x10-5cm/s
DOUBLE -SIDED HEAT -BONDED
DRAINAGE GEOCOMPOSITE (TRANSMISSI
K > 5x10-4 m%s) WITH 8 OZ/SY
NON -WOVEN GEOTEXTILE-BOTH SIDES
24" PROTECTIVE COVER
K > 1.900-4 cm/s
2'-0"
60-MIL TEXTURED
HDPE GEOMEMBRANE
I—III=1 .
DEPTH
VARIES 1 L—
PREPARED SUBGRADE NATURAL 3
INORGANIC SOIL OR COMPACTED
STRUCTURAL FILL
18" COMPACTED CLAY
K < 1 x10-5 cm/s
DOUBLE -SIDED HEAT -BONDED
DRAINAGE GEOCOMPOSITE (TRANSMISS
K > 5x10-4 m%s) WITH 8 OZ/SY
NON -WOVEN GEOTEXTILE-BOTH SIDES
PHASE 4 CELL 2 WEST I PHASE 4 CELL 2 EAST
10'-0" 10'-0" 10'-0"
LEACHATE LINE DRAIN LINER TIE-IN
ZONE 5'-0" /
REINFORCED GEOSYNTHETIC CLAY LINER COMPACTED FILL
(GCL) K < 100-9cm/s RAIN FLAP 2'-0" / `ILL A
REA
IV —V
LEACHATE LINE DRAIN
�1 I DEPTH
3 j VARIES
EXTEND GEOMEMBRANE LINER
(7' INTO TIE-IN ZONE)
EXTRUSION WELD (WELD RAIN
FLAP TO GEOMEMBRANE ON FLOOR)
WIDTH VARIES
60-MIL TEXTURED—
HDPE GEOMEMBRANE
PREPARED SUBGRADE NATURAL -
INORGANIC SOIL OR COMPACTED
STRUCTURAL FILL
REINFORCED GEOSYNTHETIC CLAY LINER
(GCL) K < 1 x10-9 cm/s
EAST INTERCELL TIE—IN L5
(SEE NOTE 1) n a
0 3 6
SCALE IN FEET
PHASE 4 CELL 2 WEST
(FUTURE REDEVELOPMEN'
18" COMPACTED CLAY LINER
K < 1x10-5cm/s
DOUBLE -SIDED HEAT -BONDED
DRAINAGE GEOCOMPOSITE (TRANSMISSIVITY
K > 5x10-4 mYs) WITH 8 OZ/SY
NON -WOVEN GEOTEXTILE-BOTH SIDES
NOTE:
1. A RAINFLAP BERM WILL BE INSTALLED TO ALLOW
LEACHATE TO DRAIN TO A CENTRALIZED LOCATION
IN PHASE 4 CELL 2 EAST. IN THIS CENTRALIZED
LOCATION, ADDITIONAL ROCK WILL BE ADDED AND
AN INTERIM RISER WILL BE UTILIZED AS AN ACCESS
POINT TO EXTRACT LEACHATE UTILIZING A TYPICAL
PUMP.THE LEACHATE WILL BE PUMPED THROUGH A
TEMPORARY 4" SDR-11 FORCEMAIN WHICH WILL BE
CONNECTED TO THE PREVIOUSLY INSTALLED FORCEMAIN.
PHASE 4 CELL 2 EAST THE RAINFLAP AND ASSOCIATED LEACHATE COMPONENTS
WILL BE REMOVED UPON APPROVAL OF PHASE 4 CELL 2
(CONSTRUCTED) WEST TO ALLOW FOR CONTINUED FLOW OF LEACHATE TO
EXTRACTION POINTS AT THE EDGE OF PHASE 4 CELL 2 WEST.
LINER TIE-IN
ZONE
5'-0" TEMPORARY 4" SDR-11
FORCEMAIN
RAIN FLAP COMPACTED FILL /
2'-0" / / FILL AREA
4'x8' PLYWOOD 2
(3/8" THICK) 1 3
60-MIL TEXTURED
EXTEND GEOMEMBRANE LINER-HDPE GEOMEMBRANE
(7' INTO TIE-IN ZONE) PREPARED SUBGRADE NATURAL —
INORGANIC SOIL OR COMPACTED
EXTRUSION WELD (WELD RAIN STRUCTURAL FILL
FLAP TO GEOMEMBRANE ON FLOOR)
REINFORCED GEOSYNTHETIC CLAY LINER
(GCL) K < 1 x 10-9 cm/s
SOUTH INTERCELL TIE—IN L6
(SEE NOTE 1) z" a
0 3 6
SCALE IN FEET
18" COMPACTED CLAY LINER
K < 1x10-5cm/s
DOUBLE -SIDED HEAT -BONDED
DRAINAGE GEOCOMPOSITE (TRANSMISSIVITY
K > 5x10-4m�s) WITH 8 OZ/SY
NON -WOVEN GEOTEXTILE-BOTH SIDES
24" PROTECTIVE COVER
K > 1.9x10-4 cm/S
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COPYRIGHT ® 2024 WEAVER CONSULTANTS GROUP, LC. ALL RIGHTS RESERVE).

3'-0"
PREPARED SUBGRADE NATURAL -
INORGANIC SOIL OR COMPACTED
STRUCTURAL FILL
END CAP
10'-0"
24" PROTECTIVE COVER LEACHATE LINE DRAIN
K > 1.9x10-4 Cm/s
60-MIL TEXTURED
HDPE GEOMEMBRANE
DEPTH
VARIES 1�
3
18" COMPACTED CLAY LINER
K < 1 x10'5 Cm/s
DOUBLE -SIDED HEAT -BONDED
DRAINAGE GEOCOMPOSITE (TRANSMISSIVITY
K > 5x10-4 m%s) WITH 8 OZ/SY
NON -WOVEN GEOTEXTILE-BOTH SIDES
0 0 0 0 0 U o
PHASE 4 CELL 2 WEST
(FUTURE REDEVELOPMENT)
VARIES 10'-0"
LINER TIE-IN
ZONE
END CAP TO BE REMOVED UPON —I
APPROVAL OF PHASE 4 CELL 2 I RAIN
WESTERN PORTION AND CONNECT
TO PHASE 4 CELL 2 WESTERN
LEACHATE COLLECTION PIPE
0 0
EXTEND GEOMEMBRANE
(7' INTO TIE-IN ZONE)
4'x8' PLYWOOD
(3/8" THICK) 77
0 0 0
PHASE 4 CELL 2 EAST
(CONSTRUCTED)
BLIND FLANGE
5'-0" 8" DIA HDPE SDR-II PERFORAT/FILL
LEACHATE COLLECTION PIPE
1 COMPACTED FILL /
DRAINAGE AGGREGATE 2'-0 (K >1x10-2CM/S)// AREA
3 2 INTERIM RISER
0.7
o 0 3'-0„
(MIN)
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ='�
EXTRUSION WELD (WELD RAIN
FLAP TO GEOMEMBRANE ON FLOOR)
REINFORCED GEOSYNTHETIC CLAY LINER
(GCL) K < 1 x10-9 cm/s
NOTE:
1. A RAINFLAP BERM WILL BE INSTALLED TO ALLOW
LEACHATE TO DRAIN TO A CENTRALIZED LOCATION
IN PHASE 4 CELL 2 EAST. IN THIS CENTRALIZED
LOCATION, ADDITIONAL ROCK WILL BE ADDED AND
AN INTERIM RISER WILL BE UTILIZED AS AN ACCESS
POINT TO EXTRACT LEACHATE UTILIZING A TYPICAL
PUMP.THE LEACHATE WILL BE PUMPED THROUGH A
TEMPORARY 4" SDR-11 FORCEMAIN WHICH WILL BE
CONNECTED TO THE PREVIOUSLY INSTALLED FORCEMAIN.
THE RAINFLAP AND ASSOCIATED LEACHATE COMPONENTS
WILL BE REMOVED UPON APPROVAL OF PHASE 4 CELL 2
WEST TO ALLOW FOR CONTINUED FLOW OF LEACHATE TO
EXTRACTION POINTS AT THE EDGE OF PHASE 4 CELL 2 WEST.
TEMPORARY LEACHATE EXTRACTION POINT L7
(SEE NOTE 1) 2A `
0 3 6
SCALE IN FEET
WYE TO BE REMOVED UPON APPROVAL
DOUBLE -SIDED HEAT -BONDED
OF PHASE 4 CELL 2 WESTERN PORTION
DRAINAGE GEOCOMPOSITE (TRANSMISSIVITY
AND CONNECT TO PHASE 4 CELL 2
K > 5x10-4 m/s) WITH 8 OZ/SY
WESTERN PORTION LEACHATE COLLECTION
NON -WOVEN GEOTEXTILE-BOTH SIDES
PIPE SYSTEM
18" COMPACTED CLAY LINER
K < 1 x1 0-5 cm/S
60-MIL TEXTURED
HDPE GEOMEMBRANE
PREPARED SUBGRADE NATURAL
NORGANIC SOIL OR COMPACTED
STRUCTURAL FILL
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051678
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01 /18/2024
COPYRIGHT ® 2024 WEAVER CONSULTANTS GROUP, LC. ALL RIGHTS RESERVED.