Dwgs_IFP_TCLF_MSW_Unit_4_Cell_5_Landfill_Liner.pdf
PDF 14 MB Posted
- Solicitation number
- RFP #27008
- Issued by
- Greenville County, South Carolina
About this file
This is a set of contract drawings issued by HDR Engineering, Inc. for Greenville County, South Carolina for the Twin Chimneys Landfill Unit 4 Cell 5 Liner civil construction project. The project encompasses the design and construction of an 8.6-acre municipal solid waste (MSW) landfill cell liner system, including subgrade preparation, a 2-foot soil liner component, geosynthetic clay liner (GCL), 60-mil HDPE geomembrane, geocomposite drainage media, protective cover, and leachate collection piping infrastructure. The drawings include nine sheets detailing existing conditions, subgrade specifications, liner installation requirements, operational cover specifications, and liner construction details with cross-sections. The project is located at the Twin Chimneys Landfill on Augusta Road in Greenville County and references an existing 2025 drone survey and 2021 aerial survey for baseline topography. The drawings are issued for proposals as of July 15, 2026, with Project Number 10174879.
The contractor is responsible for construction quality control (CQC) and surveying work, while the County will separately procure Construction Quality Assurance (CQA) services. The project requires substantial completion within 180 calendar days from Notice to Proceed and final completion within 210 calendar days from Notice to Proceed, with liquidated damages assessed at $1,000 per day for failure to achieve substantial completion and $500 per day for failure to achieve final completion. Key construction requirements include proof rolling of the subgrade, clay liner thickness verification and permeability testing, HDPE geomembrane panel layout approval, leachate pipe video inspection and cleaning, and final as-built surveying. Primary site access is via the existing Augusta Road (Highway 25) construction entrance, with restrictions on Bridge Road access requiring coordination with ongoing landfill operations. All excavated materials not used in construction must be stockpiled in designated areas.
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Text version
Twin Chimneys Landfill
Cell 5 Liner Civil
Project No.
11075 Augusta Road
C o n t r a c t D r a w i n g s F o r
10174879
July 2026
I N D E X O F D R A W I N G S
GENERAL
15G-00 COVER SHEET
15G-01 OVERALL SITE PLAN
CIVIL
15C-01 EXISTING CONDITIONS
15C-02 UNIT 4 CELL 5 SUBGRADE
15C-03 UNIT 4 CELL 5 SUBGRADE CONTROL PLAN
15C-04 UNIT 4 CELL 5 TOP OF LINER
15C-05 UNIT 4 CELL 5 TOP OF LINER CONTROL PLAN
15C-06 UNIT 4 CELL 5 OPERATIONAL COVER
15C-07 UNIT 4 CELL 5 OPERATIONAL COVER CONTROL PLAN
15C-08 LINER DETAILS
15C-09 CROSS SECTIONS
Issued for Proposals
MSW Unit 5
Greenville County, South Carolina
HDR Engineering, Inc.
of the Carolinas 440 S. Church St., Suite 1200 Charlotte, NC 28202-2075 704.338.6700
7/15/26
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CELL 2
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UNIT 7
FUTURE
UNIT 5
CELL 3
CELL 4 CELL 5
ACTIVE
UNIT 4 MSW
CLAY
STOCKPILE
SEDIMENT
BASIN B
SEDIMENT
BASIN C
E-WASTE
METALS
PAD
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WASTE
PAD
SEDIMENT
BASIN A
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17.0 ACRES
8.6 ACRES
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8.5 ACRES
10.3 ACRES
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MW-10R
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MW-23
MW-22
MW-42
MW-43
MW-44
MW-49
MW-25
OVERALL SITE PLAN
15G-01.dwg
1" = 300' 15G-01
GENERAL NOTES:
1. EXISTING TOPOGRAPHY FROM TWO SEPARATE SURVEYS,FREELAND
& ASSOCIATES AERIAL SURVEY DATED JULY 15, 2021 AND DRONE
SURVEY IN UNIT 1,2 AND 4 AREA BY RP &ASSOCIATES DATED JULY
09, 2025.
2. CONTRACTOR'S PRIMARY ACCESS TO THE SITE SHALL BE VIA THE
EXISTING AUGUSTA ROAD (HIGHWAY 25) CONSTRUCTION ENTRANCE
THAT LEADS DIRECTLY INTO UNIT 4. MAINTAIN BOTH IN GOOD
CONDITION AT ALL TIMES AND IMPROVE AS NECESSARY TO
COMPLETE THE WORK.
4. CONTRACTOR MAY ELECT TO INSTALL A NEW CONSTRUCTION
ENTRANCE IN THE LOCATION SHOWN ALONG HIGHWAY 25.
CONTRACTOR WILL NEED TO PROVIDE A GATE TO SECURE THE
ACCESS.
5. ACCESS TO THE BRIDGE ROAD IS RESTRICTED DUE TO LANDFILL
OPERATIONS. COORDINATE WITH OWNER A SCHEDULE FOR
TRAVERSING THE BRIDGE. SUPPLY FLAGGERS DURING LANDFILL
OPERATING HOURS TO COORDINATE CONTRACTORS TRAFFIC AND
LANDFILL TRAFFIC ON BRIDGE ROAD. GARBAGE TRUCKS AND
OTHER COUNTY VEHICLES SHALL ALWAYS HAVE PRIORITY.
6. CONTRACTOR RESPONSIBLE FOR SECURITY OF ALL TOOLS,
MATERIALS AND EQUIPMENT LEFT ON SITE. CONTRACTOR TO
SECURE ACCESS POINTS TO THE WORK SITE AS NECESSARY.
7. THE CONTRACTOR SHALL PROTECT ALL EXISTING WELLS,
STRUCTURES AND UTILITIES. ANY WELLS, STRUCTURES OR
UTILITIES THAT ARE DAMAGED SHALL BE REPLACED OR REPAIRED
(AS DIRECTED BY OWNER).
8. EROSION AND STORMWATER CONTROL MEASURES ARE INSTALLED
AND OPERATIONAL FOR THE DESIGNATED WORK AREAS.
CONTRACTOR TO MAINTAIN AND PROTECT THE STRUCTURES FROM
DAMAGE.
9. SITE BENCHMARK CONTROL IS LOCATED NEAR THE CELLULAR
TOWER.
CONSTRUCTION AREA
BORINGS (SB & B)
METHANE MONITORING (MM)
PIEZOMETER (PZ)
MONITORING AND OBSERVATION
WELL (MW,OW)
PROPOSED EXISTING ABANDONED
MW-P
MM-P
PL
LEGEND
EXISTING 2021 & 2025 MAJOR CONTOURS
EXISTING 2021 & 2025 MINOR CONTOURS
WETLANDS
UNIT AND CELL BASELINES
PROPERTY LINE
EXISTING TREELINE
PZ-# PZ-#
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MM-#
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SEDIMENT BASIN #10
DI #9
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TANKS
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EDUCATION
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SEDIMENT
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AUGUSTA RD
AUGUSTA RD
BRIDGE ROAD
SEDIMENT BASIN #11
100 YEAR FLOODPLAIN
LEACHATE
EVAPORATOR
CONCRETE
MONUMENT
N 987685.471 E 1604817.497
EL. 809.25
STOCKPILE ACCESS ROAD
TEMPORARY
SEDIMENT BASIN A
LIMITS OF SURVEY
LIMITS OF SURVEY
A
B
C
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D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
PWESTMOR
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LP
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36"RCP
INV:725.45
INV:728.84
GR
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x 724.39 TP x 724.90 TP x 7
.0 8 T
P x 7
.4 9 T
P
TP 724.29 x
TP 722.02 x
TP 719.23 x
TP 717.04 x
EB
OUTPARCEL
OUTPARCEL
CELL 1
CELL 2
FUTURE
UNIT 7
ACTIVE
UNIT 4 MSW
CELL 3
CELL 4
CELL 5
COMPOST AREA
EXISTING CONDITIONS
15C-01.dwg
1" = 200' 15C-01
GENERAL NOTES:
1. EXISTING TOPOGRAPHY FROM TWO SEPARATE SURVEYS,FREELAND
& ASSOCIATES AERIAL SURVEY DATED JULY 15, 2021 AND DRONE
SURVEY IN UNIT 1,2 & 4 AREA BY RP &ASSOCIATES DATED JULY 09,
2025.
2. STOCKPILE ALL EXCAVATED SOIL MATERIALS, NOT USED IN THE
WORK, IN THE DESIGNATED AREA INDICATED ON THE PLAN.
BORINGS (SB & B)
METHANE MONITORING (MM)
PIEZOMETER (PZ)
MONITORING AND OBSERVATION
WELL (MW,OW)
PROPOSED EXISTING ABANDONED
MW-P
MM-P
PL
LEGEND
EXISTING 2021 & 2025 MAJOR CONTOURS
EXISTING 2021 & 2025 MINOR CONTOURS
WETLANDS
UNIT AND CELL BASELINES
PROPERTY LINE
EXISTING TREELINE
CONSTRUCTION AREA
CONSTRUCTION SEQUENCE:
1. ESTABLISH LIMITS OF CONSTRUCTION.
2. REVIEW FIELD CONDITIONS AND THE AS-BUILT SURVEY FROM THE
PREVIOUS CONSTRUCTION PROJECT WITH ENGINEER PRIOR TO
INITIATING CONSTRUCTION.
3. PERFORM EXCAVATION AND FINE GRADING TO ACHIEVE SUBGRADE.
MAINTAIN POSITIVE DRAINAGE IN SEDIMENT BASIN A. A PUMP AND
SILT BAG MAY BE NECESSARY.
4. BEGIN CLAY LINER INSTALLATION. PROVIDE TEST DATA AND
PERIODIC CLAY THICKNESS SURVEY TO ENGINEER FOR REVIEW.
5. UPON RECEIPT OF PASSING CLAY TEST RESULTS AND SURVEY,
THICKNESS VERIFICATION, BEGIN GEOSYNTHETICS INSTALLATION.
6. UPON RECEIPT OF PASSING GEOSYNTHETICS TEST RESULTS, BEGIN
OPERATIONAL COVER AND LEACHATE PIPE INSTALLATION.
7. SUBMIT SURVEY OF OPERATIONAL COVER THICKNESS
VERIFICATION TO ENGINEER FOR REVIEW.
8. SEED DISTURBED AREAS AND STOCKPILES.
9. PERFORM LEACHATE PIPE VIDEO INSPECTION AND CLEANING.
10. SUBMIT OVERALL SURVEY OF DISTURBED AREAS.
OVERALL PROJECT SCOPE:
THE COUNTY IS CURRENTLY EXCAVATING THE CELL 5 AREA TO THE
SUBGRADE SHOWN ON SHEET 15C-02. THIS PROJECT MAY REQUIRE
ADDITIONAL EXCAVATION TO ACHIEVE THE SUBGRADE, FOLLOWING
SUBGRADE EXCAVATION, CONTRACTOR TO INSTALL THE LINER SECTION
SHOWN ON SHEET 15C-08 DETAIL 1.
MW-A
MM-#
B-# B-#
PZ-#PZ-#
EXISTING SEDIMENT
BASIN #T2
SEDIMENT
BASIN #T5
SEDIMENT
BASIN #T3
SEDIMENT BASIN #9
WETLANDS
SEDIMENT BASIN #10
DI #9
SEDIMENT
BASIN #T4
EXISTING
CONSTRUCTION
ENTRANCE
AUGUSTA RD
TEMPORARY SEDIMENT BASIN A
SEDIMENT BASIN #11
CURRENT MSW
PERMIT BOUNDARY
PROPOSED MSW
PERMIT BOUNDARY
SOIL STOCKPILE
CLAY STOCKPILE
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
BRIDGE ROAD
PWESTMOR
Snapshot
PWESTMOR
740740740
730730
ACTIVE CELL 4
ACTIVE CELL 3
8.5 ACRES
10.3 ACRES
8.6 ACRES
8.5 ACRES
ACTIVE CELL 2
PROPOSED CELL 5
MW-24
PZ-6d
PZ-54
PZ-56
PZ-6s
PZ-77
MW-23
MW-22
MW-25
710720730740
0720720
760760
3:1
3:1
3:
3:
3:1
3:1
4.0%
5.0%
5.0%
1.5%
0.9%
33.1%
UNIT 4 CELL 5 SUBGRADE
15C-02.dwg
1"=60' 15C-02
PL
LEGEND
EXISTING 2025 MAJOR CONTOURS
GENERAL NOTES:
1. CONTRACTOR SHALL PROVIDE AN AS-BUILT SURVEY OF THE SUBGRADE SIGNED
AND SEALED BY A LAND SURVEYOR, FOR ENGINEERS ACCEPTANCE PRIOR TO
INITIATING CLAY LINER INSTALLATION.
2. CONTRACTOR MAY UTILIZE THE SKIMMER DURING CLAY INSTALLATION. THE
CONTRACTOR MAY ABANDON THE SKIMMER PER THE DETAIL AND USE A PUMP
AND SILT BAG.
3. EXISTING CONDITIONS WITHIN THE CELL 5 DO NOT REPRESENT THE JULY 09, 2025
SURVEY DUE TO CURRENT EXCAVATION. CONTRACTOR TO VERIFY CONDITIONS
PRIOR TO INITIATING CONSTRUCTION.
4. PROPOSED CONTOURS WITHIN CONSTRUCTION BASELINE REPRESENT
SUBGRADE OF CELL 5.
5. AN ACCEPTABLE PROOF ROLL (AS DEFINED BY THE CQA CONSULTANT) MUST BE
OBSERVED TO DEMONSTRATE A STABLE SUBGRADE PRIOR TO CONSTRUCTION
OF THE LINER SYSTEM. THE SUBGRADE MAY BE ACCEPTED IN STAGES TO
FACILITATE CONSTRUCTION. REFER TO TECHNICAL SPEC SECTION 31 38 10.
6. REFER TO SPECIFICATIONS AND CQA PLAN FOR SURVEYING REQUIREMENTS TO
PRODUCE AS-BUILT DRAWINGS AND TO PROVIDE BASIS FOR VERIFYING
EXCAVATION QUANTITIES.
7. REMOVE ALL WET AND SOFT SOILS PRIOR TO BEGINNING STRUCTURAL FILL
PLACEMENT. COMPACT PER SPECIFICATIONS. "BRIDGE LIFTS" REQUIRE
APPROVAL OF ENGINEER AND CQA CONSULTANT.
8. PROTECT EXISTING WELLS, DROP INLETS AND OTHER STRUCTURES DURING THE
WORK.
9. IF CONTRACTOR ENCOUNTERS GROUNDWATER DURING EXCAVATION,
IMMEDIATELY STOP WORKING IN THAT AREA AND NOTIFY ENGINEER. EXISTENCE
OF WATER MAY REQUIRE REVISION TO GRADING. THE CONTRACTOR SHALL
IMPLEMENT ALL CHANGES BASED ON EXISTENCE OF GROUNDWATER IN THE
EXCAVATION.
EXISTING 2025 MINOR CONTOURS
WETLANDS
UNIT AND CELL BASELINES
PROPERTY LINE
GRADING LIMITS
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
EXISTING TREELINE
METHANE MONITORING (MM)
PIEZOMETER (PZ)
MONITORING AND OBSERVATION
WELL (MW,OW)
PROPOSED EXISTING ABANDONED
MW-P
MM-P
MW-A
MM-#
PZ-#PZ-#
PROPOSED
CONSTRUCTION
BASELINE
TEMPORARY
SEDIMENT BASIN A
SF
SILT FENCE
GEOSYNTHETIC CLAY LINER
(WITHIN CBL)
LOCATION THIS SHEET
2' OPERATIONAL COVER
SUBGRADE
2' SOIL LINER
60 MIL HDPE GEOMEMBRANE
GEOCOMPOSITE DRAINAGE MEDIA
KEY MAP
RAINCOVER
NTS
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
PROPOSED
CONSTRUCTION
BASELINE
15C-09
PWESTMOR
Snapshot
PWESTMOR
POINT TABLE
POINT NO.
NORTHING
983645.29
983663.17
983659.04
983657.57
983503.02
983496.46
983468.88
983492.70
983540.40
983364.12
983289.52
983205.49
983095.06
983305.92
983332.60
983344.21
983379.36
983393.08
983656.85
983666.68
983593.61
983416.08
983608.63
983459.60
983407.63
983286.96
983283.49
983236.07
983209.88
983361.19
983428.75
983586.77
EASTING
1605184.98
1605198.95
1605284.56
1605314.79
1605568.82
1605614.40
1605806.30
1605865.29
1605983.38
1606121.88
1606067.06
1606021.22
1605842.28
1605002.72
1604919.21
1604893.50
1604887.94
1604887.23
1605077.59
1605115.86
1605142.57
1605034.54
1605245.16
1605331.76
1605029.49
1605432.09
1605447.96
1605664.73
1605771.18
1606016.72
1606071.10
1605431.14
ELEVATION
730.00
730.00
728.00
754.00
754.00
710.00
701.59
700.00
754.00
718.11
720.30
723.03
729.97
754.63
758.00
759.12
751.00
750.00
754.07
750.00
728.00
720.00
728.00
720.00
719.59
710.73
710.00
700.00
696.00
693.47
691.89
720.00
DESCRIPTION
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
111 112 113
720730740750
3:1
3:1
3:
3:
3:
3:1
4.0%
4.0%
5.0%
5.0%
5.
0%
UNIT 4 CELL 5 SUBGRADE CONTROL
15C-03.dwg
1"=60' 15C-03
LEGEND
CONTROL LINE
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
PROPOSED CELL 5
8.6ACRES
NOTES
1. CONSTRUCT THE CELL FLOOR AND DITCHES TO THE GRADES SHOWN ON
THIS DRAWING. UTILIZE GPS EQUIPMENT FOR FINE GRADING SUBGRADE AND
THE CLAY LINER.
2. CONTOURS INSIDE THE CONSTRUCTION BASELINE REPRESENT PROPOSED
SUBGRADE AS SHOWN ON SHEET 15C-02.
3. EACH PANEL (PLANE) DEPICTS AN AREA OF CONSTANT GRADE. REFER TO
THE DETAILS FOR BASEGRADE GEOMETRY AROUND THE PIPING.
4. THE CONTROL POINTS DEFINE THE LOCATION OF THE CONSTRUCTION
BASELINE AND THE PANELS THAT MAKEUP THE CELL.
5. IF THERE ARE ANY CONFLICTS BETWEEN INFORMATION ON THIS SHEET AND
OTHER REPRESENTATIONS OF THE WORK, NOTIFY THE ENGINEER. THE
ENGINEER WILL DETERMINE PRECEDENCE OF CONFLICTS.
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
ACTIVE CELL 4
10.3 ACRES
ACTIVE CELL3
8.5 ACRES
ACTIVE CELL 2
PWESTMOR
Snapshot
PWESTMOR
LF@1.1%
LF@2.5%
LF@2.5%
LF@2.0%
LF@2.5%
LF@2.0%
740740740
730730
ACTIVE
CELL 2
8.6 ACRES
ACTIVE
CELL 4
10.3 ACRES
PROPOSED
CELL 5
8.6 ACRES
5.0
5.0%
2.9%
4.4
5.0%
5.0% 4.0%
4.0%
3:1
3:1
3:1
3:1
MW-62
MW-24
MW-63
PZ-54
PZ-56
PZ-77
PZ-25
PZ-25d
MW-21
MW-23
MW-22
CELL 3
8.5 ACRES
UNIT 4 CELL 5 TOP OF LINER
15C-04.dwg
1"=60' 15C-04
2' OPERATIONAL COVER
SUBGRADE
2' SOIL LINER
KEY MAP
NTS
GEOSYNTHETIC CLAY LINER
60 MIL HDPE GEOMEMBRANE
GEOCOMPOSITE DRAINAGE MEDIA
RAINCOVER
LEGEND
UNIT AND CELL BASELINES
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
1. CLAY FOR THE SOIL LINER SHALL BE OBTAINED
FROM THE CLAY STOCKPILE .
2. BACKFILL THE ANCHOR TRENCH WITH THE SAME
MATERIAL AS USED FOR SOIL LINER
COMPONENT.
3. THE CONSTRUCTION BASELINE GENERALLY
REPRESENTS THE HORIZONTAL EXTENT OF THE
LINER SYSTEM. SEE LINER DETAILS.
4. THESE CONTOURS REPRESENT THE TOP OF
SOIL LINER GRADES.
5. REFER TO SPECIFICATIONS AND CQA PLAN FOR
SURVEYING REQUIREMENTS TO PRODUCE
AS-BUILT DRAWINGS AND TO PROVIDE BASIS
FOR VERIFYING EXCAVATION QUANTITIES AND
REQUIRED LINER THICKNESS.
6. RECORD ALL PERMEABILITY TEST LOCATIONS BY
GPS, OR CONVENTIONAL SURVEY. DOCUMENT
LOCATION OF ALL OTHER TESTS BY METHOD
APPROVED BY CQA CONSULTANT.
7. CERTIFY IN WRITING TO THE CQA ENGINEER
THAT THE CLAY LINER MEETS SPECIFICATIONS
INCLUDING THICKNESS VERIFICATION PRIOR TO
INSTALLING HDPE LINER.
8. SUBMIT A HDPE LINER PANEL LAYOUT TO THE
ENGINEER FOR APPROVAL PRIOR TO
INSTALLATION. THE PANELS SHALL BE SEAMED
PARALLEL TO LINE OF MAXIMUM SLOPE. FLOOR
PANELS SHALL GENERALLY BE LAPPED ON THE
DOWNHILL SIDE. REFER TO SPECIFICATIONS AND
CQA PLAN.
9. USE TEXTURED 60 MIL HDPE GEOMEMBRANE
FOR ALL AREAS.
10. ALL LEACHATE PIPES TO BE PERFORATED. ALL
CONNECTIONS TO BE FUSED.
11. JOIN INTERSECTING PIPES WITH
APPROPRIATELY SIZED FITTINGS AND BUTT
FUSION WELDS.
12. PIPES SHOULD BE LAID STRAIGHT BETWEEN
CONTROL POINTS. ALL CLEANOUTS SHALL RUN
PERPENDICULAR TO SLOPE.
13. TEMPORARY STORM WATER PIPE MUST BE
SOLID AND SMOOTH WALLED. CONNECT
PROPOSED PIPE TO EXISTING CELL 2 PIPE USING
FUSION WELD.
NOTES
SEDIMENT BASIN #12
PROPOSED
CONSTRUCTION
BASELINE
A15C-09
C
C -0
CELL 2, 3 & 4 TIE-IN
WITH CELL 5 W/O PIPE
15C-08
LEACHATE PIPE3
15C-08
LEACHATE COLLECTION PIPE
(SIZE VARIES)
EXISTING MAJOR CONTOURS780
EXISTING MINOR CONTOURS
PIPE PERFORATION
(TYP)
15C-08
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
B 15C-09
CELL 2, 3 & 4 TIE-IN
WITH CELL 5 W/ PIPE
15C-08
LEACHATE
CLEANOUT
(TYP.)
15C-08
CONNECT TO EXISTING 15"
HDPE STORMWATER PIPE
(NOTE 13)
TEMPORARY
STORMWATER PIPE
15C-08
PIPE CROSS
CONNECTIONS
(TYP.)
15C-08
CELL 5 FUTURE
TIE-IN W/O PIPE
15C-08
CELL 5 FUTURE
TIE-IN W/PIPE
15C-08
METHANE MONITORING (MM)
PIEZOMETER (PZ)
MONITORING AND OBSERVATION
WELL (MW,OW)
PROPOSED EXISTING ABANDONED
MW-P
MM-P
PZ-# PZ-#
MM-#
MW-A
(WITHIN CBL)
LOCATION THIS SHEET
PWESTMOR
Snapshot
PWESTMOR
45 46
726728
LF@1.1%
LF@2.5%
LF@2.5%
LF@2.0%
LF@2.5%
LF@2.0%
SITE LAYOUT COORDINATE POINTS TABLE
POINT NO.
NORTHING
984025.77
983925.79
983656.08
983554.40
983393.08
983312.42
983337.97
983305.92
983094.93
983224.67
983364.12
983663.17
983663.83
983629.88
983380.33
983308.54
983431.34
983429.27
983330.14
983468.49
983656.78
984025.04
983841.87
983657.76
983659.03
983608.58
983476.89
983325.60
983503.03
983468.88
983492.74
983540.40
983595.81
983405.51
983404.27
983407.63
983370.21
983288.11
983666.68
983643.53
983236.40
983210.87
983245.70
983348.27
983102.68
983209.88
983271.93
983573.62
983657.57
983547.29
983473.32
983303.63
983209.03
983406.96
983403.20
EASTING
1605071.45
1605072.29
1605080.10
1605005.45
1604887.23
1604828.12
1604882.30
1605002.72
1605841.31
1606031.70
1606121.88
1605199.01
1605185.30
1605056.72
1604877.36
1605001.10
1606069.06
1606070.68
1604838.14
1604938.45
1605077.80
1605062.44
1605070.70
1605310.97
1605284.62
1605245.19
1605321.72
1605409.63
1605568.76
1605806.30
1605865.38
1605983.38
1605157.95
1605036.29
1605041.40
1605029.49
1605153.11
1605431.42
1605115.86
1605172.95
1605665.05
1605768.54
1605950.40
1606008.16
1605744.31
1605351.33
1605126.18
1605144.45
1605314.79
1605496.02
1605775.38
1605376.88
1605773.08
1605039.52
1605038.88
ELEVATION
757.00
756.00
753.25
752.00
750.00
749.00
757.99
754.63
730.00
723.33
718.11
732.00
732.22
0.00
749.98
754.01
694.07
694.00
750.00
752.00
754.00
760.00
756.00
728.98
730.00
730.00
722.93
714.81
714.00
703.59
702.00
699.45
730.00
719.44
721.37
719.59
718.87
714.45
750.00
730.00
703.65
699.76
698.38
1.65
0.00
0.00
0.00
730.65
728.95
718.23
704.95
713.96
699.85
721.52
1443.51
DESCRIPTION
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT AREA
MAINT AREA
MAINT-AREA
MAINT-AREA
CLEANOUT
MAINT-AREA
MAINT-AREA
22" LLEACH
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
8" LEACH
MAINT-AREA
MAINT. AREA
10" LEACH
10" LEACH
MAINT-AREA
MAINT=-AREA
MAINT=-AREA
MAINT=-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
MAINT-AREA
CLEANOUT
CLEANOUT
MAINT-AREA
MAINT-AREA
MAINT=-AREA
MAINT-AREA
MAINT AREA
CLEANOUT
CLEANOUT
CLEANOUT
CLEANOUT
8" LEACH
MAINT-AREA
10" LEACH
10" LEACH
CLEANOUT
CLEANOUT
16" LEACH
MAINT-AREA
UNIT 4 CELL 5 TOP OF LINER CONTROL
15C-05.dwg
1"= 60' 15C-05
LEGEND
CONTROL LINE
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
PROPOSED CELL 5
8.6 ACRES
ACTIVE CELL 4
10.3 ACRES
ACTIVE CELL3
8.5 ACRES
ACTIVE CELL 2
LEACHATE PIPE
LEGEND
CONTROL LINE
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
TEMPORARY
STORMWATER PIPE
PWESTMOR
Snapshot
PWESTMOR
740740740
730730
MW-24
PZ-6d
PZ-54
PZ-56
PZ-6s
PZ-77
MW-23
MW-22
ACTIVE
CELL 2
ACTIVE
CELL 4
10.3 ACRES
ACTIVE
CELL 3
8.5 ACRES
LF@1.1%
LF@2.5%
LF@2.5%
LF@2.0%
LF@2.5%
LF@2.0%
5.0%
5.0%
4.0%
3.
7%
PROPOSED
CELL 5
8.6 ACRES
UNIT 4 CELL 5 OPERATIONAL COVER
15C-06.dwg
1"=60 15C-06
KEY MAP
2' SOIL LINER
SUBGRADE
2' OPERATIONAL COVER
GEOSYNTHETIC CLAY LINER
(WITHIN CBL)
LOCATION THIS SHEET
60 MIL HDPE GEOMEMBRANE
GEOCOMPOSITE DRAINAGE MEDIA
RAINCOVER
PL
LEGEND
UNIT AND CELL BASELINES
PROPERTY LINE
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
1. THE GRADES WITHIN CELL 5 GENERALLY REPRESENT THE
TOP OF OPERATIONAL COVER.
2. CERTIFY IN WRITING TO THE CQA ENGINEER THAT THE
OPERATIONAL COVER MEETS SPECIFICATIONS INCLUDING
THICKNESS VERIFICATION.
3. TEMPORARY STORM WATER PIPE MUST BE SOLID AND
SMOOTH WALLED. CONNECT PROPOSED PIPE TO EXISTING
CELL 2 PIPE USING FUSION WELD.
NOTES
PROPOSED
CONSTRUCTION
BASELINE
CELL 2,3 & 4 TIE-IN
WITH CELL 5 W/O PIPE
15C-08
METHANE MONITORING (MM)
PIEZOMETER (PZ)
MONITORING AND OBSERVATION
WELL (MW,OW)
PROPOSED EXISTING ABANDONED
MW-P
MM-P
MW-A
MM-#
PZ-#PZ-#
LEACHATE
COLUMN
15C-08
EXISTING MAJOR CONTOURS780
EXISTING MINOR CONTOURS
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
CELL 2,3 & 4 TIE-IN
WITH CELL 5 W PIPE
15C-08
TEMPORARY
STORMWATER PIPE
LEACHATE CLEANOUT
TOE OF SLOPE8
15C-08
A15C-09
C
C -0
B 15C-09
12" THICK CLASS "A" RIP
RAP WITH UNDERLYING
NON-WOVEN GEOTEXTILE
TERMINATION BERM
PWESTMOR
Snapshot
PWESTMOR
5.
0%
5.
0%
5.0%
4.0%
3.
7%
3:1
3:1
3:1
3:1
3:1
3:1
3:1
204 205
210 211
232233
247248
OPERATIONAL COVER CONTROL TABLE
POINT NO.
NORTHING
983085.85
983100.46
983293.52
983296.75
983211.13
983332.60
983350.90
983337.97
983319.08
983321.53
983324.74
983308.87
983659.03
983368.43
983645.63
983462.67
983403.35
983313.93
983236.82
983492.74
983293.87
983215.27
983405.74
983397.97
983398.68
983306.12
983638.63
983597.57
983405.68
983476.93
983325.78
EASTING
1605777.94
1605748.34
1605047.71
1605002.13
1605768.90
1604919.21
1604892.38
1604882.30
1604872.92
1604865.67
1604849.15
1604832.96
1605284.62
1604815.11
1605185.30
1605076.93
1605041.61
1605005.27
1605665.61
1605865.38
1605981.61
1605913.20
1605035.55
1605044.59
1605042.68
1605003.11
1605193.83
1605169.01
1605037.66
1605321.69
1605409.53
ELEVATION
732.00
736.00
756.00
754.56
700.10
758.00
758.00
758.00
758.00
757.00
752.00
751.00
732.00
750.00
732.00
724.00
722.00
756.00
703.99
704.00
699.54
701.02
719.46
725.35
725.30
714.46
733.64
732.01
721.37
724.93
716.82
DESCRIPTION
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER CONTROL TABLE
POINT NO.
NORTHING
983547.29
983473.32
983608.58
984014.87
984025.04
984025.82
983975.31
983654.21
983647.98
983661.06
983666.68
983649.09
983648.69
983643.53
983644.61
983287.72
983663.83
983657.57
983503.02
983468.88
983540.40
983423.02
983431.91
983357.66
983335.60
983296.10
983266.30
983206.39
983159.90
983123.16
983101.74
983100.66
983092.96
EASTING
1605496.02
1605775.38
1605245.19
1605068.22
1605062.44
1605077.45
1605078.83
1605086.17
1605101.25
1605111.48
1605115.86
1605163.01
1605170.31
1605172.95
1605180.30
1605431.65
1605185.30
1605314.79
1605568.82
1605806.30
1605983.38
1606075.59
1606068.61
1606128.10
1606097.19
1606081.19
1606054.84
1606021.37
1605995.02
1605930.07
1605904.96
1605871.98
1605810.17
ELEVATION
720.23
706.95
732.00
758.00
760.00
759.00
758.00
755.25
750.00
750.00
750.00
734.00
732.00
730.00
730.00
714.46
732.22
730.77
716.00
705.59
701.45
698.19
696.10
718.11
722.00
720.00
724.00
726.00
724.66
730.00
728.00
732.00
734.00
DESCRIPTION
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
OPERATIONAL COVER
UNIT 4 CELL 5 OPERATIONAL COVER CONTROL
15C-07.dwg
1"=60' 15C-07
LEGEND
CONTROL LINE
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
PROPOSED CELL 5
8.6 ACRES
ACTIVE CELL 4
10.3 ACRES
ACTIVE CELL3
8.5 ACRES
PWESTMOR
Snapshot
PWESTMOR
GEOCOMPOSITE DRAINAGE MEDIA
HDPE GEOMEMBRANE
GEOSYNTHETIC CLAY LINER
2'
1'
1" = 1'
ANCHOR TRENCH2
24" INITIAL SOIL BARRIER
GEOSYNTHETIC CLAY LINER (GCL)
HDPE GEOMEMBRANE
GEOCOMPOSITE DRAINAGE MEDIA
24" OPERATIONAL LAYER
SUBGRADE
NOTES:
1. GCL AND GEOCOMPOSITE DRAINAGE NET ARE PRESENT
IN ALL LOCATIONS WHERE HDPE IS DETAILED.
2. THE REQUIRED THICKNESS OF LAYERS IS MEASURED
PERPENDICULAR TO THE SURFACE. THE HORIZONTAL
LOCATION OF THE SLOPE TOES WILL VARY BASED ON
INTERSECTING SLOPES.
3. GEOSYNTHETIC MATERIAL THICKNESS ARE
EXAGGERATED FOR ILLUSTRATION PURPOSES WHERE
SHOWN AND OMITTED FOR DETAIL CLARITY WHERE NOT
SHOWN.
SLOPESLOPE
B
SEPARATOR
GEOTEXTILE
2' M
IN
PERFORATED PIPE
RAINCOVER (TO BE REMOVED)
CONSTRUCTION
BASELINE
WELDED CAP TO BE
REMOVED AND NEW PIPE
WELDED TO EXISTING PIPE
6'
LINER AND RAINCOVER
ANCHOR TRENCH
LEACHATE
PIPE
2.00'
LEACHATE
PIPE
EXISTING
CELL 2/3/4
RAINCOVER
(TO BE REMOVED)
CONSTRUCTION
BASELINE
6.0'
LINER AND RAINCOVER
ANCHOR TRENCH
2.0'
2.0'
2.
0'
EXISTING
CELL 2/3/4
CELL 5
SEPARATOR GEOTEXTILE
(EXPOSED GEOTEXTILE TO BE
REMOVED BY THE OWNER
PRIOR TO WASTE PLACEMENT)
1" = 5'
LINER SECTION1
1" = 5'
LEACHATE COLUMN3
15C-05
1" = 5'
CELL 6 FUTURE TIE-IN
W/O PIPE4
15C-04 1" = 5'
CELL 2, 3 & 4 TIE-IN
WITH CELL 5 W/O PIPE5
15C-02
1" = 5'
CELL 6 FUTURE TIE IN W/PIPE6
15C-04
1" = 5'
CELL 2,3 & 4 TIE-IN
WITH CELL 5 W/PIPE7
15C-04
LINER
SECTION
1" = 5'
TEMPORARY STOMWATER PIPE10
15C-04
3.
6'
1.
3'
3.0'
0.
7' 3.5'
10'
A B C QTY
8 12 10 5
1" = 5'
LEACHATE COLLECTION CLEANOUT9
15C-04
NOTE: ALL LEACHATE COLLECTION
HARDWARE TO BE STAINLESS STEEL
CAST IN PLACE
CONCRETE
FRONT VIEW
SOLID HDPE PIPE "A"Ø
FUTURE
WASTE
SOLID HDPE CLEANOUT
PIPE "A"Ø
HDPE PROTECTIVE CASING "C"ØANCHOR BLOCK
"B"Ø PIPE
CONSTRUCTION BASELINE
PERFORATED HDPE PIPE "A"Ø
BLIND FLANGE
15" SMOOTH WALL
HDPE STORM DRAIN
PIPE @ 0.5% SLOPE
LINER SECTION
36.0'
18"
GEOTEXTILE
OVERLAP
7.5'
NOTE:
1. OVERLAP GEOTEXTILES 18" AT ALL SEAMS.
LINER SECTION
2.0'
2.
0'
M
IN
3.0'
EXPOSED GEOTEXTILE REMOVED
BY OWNER PRIOR TO WASTE
PLACEMENT
PERFORATED HDPE LEACHATE
COLLECTION HEADER PIPE
1" = 5'
TOE OF SLOPE8
15C-06
NOTE:
1. CONTRACTOR MUST PROVIDE FABRICATION DRAWING FOR
ALL PIPE CROSS CONNECTIONS FOR ENGINEER APPROVAL.
NOT TO SCALE
PIPE CROSS CONNECTION12
15C-04
PIPE DIA. (INCHES) B (FT)
8 TO 12 2
16 TO 22 3
CELL 5
CONSTRUCTION
BASELINE
1.0'
LINER ANCHOR
TRENCH
2.0'
2.0'
2.
0'
12'
RAIN COVER
ANCHOR TRENCH
RAIN COVER
RAIN COVER
BALLAST
17'
CONSTRUCTION
BASELINE
WELDED CAP
1.00'
LINER ANCHOR TRENCH
LEACHATE
PIPE
2.00'
12'
RAIN COVER
RAIN COVER
ANCHOR TRENCH
RAIN COVER
BALLAST
17'
NOTES:
1. CONCRETE TO BE READY MIXED CONCRETE CONFORMING TO ASTM C94/C94M.
2. CONCRETE MUST HAVE MIN. 28-DAY COMPRESSIVE STRENGTH OF 4000 PSI.
SPACING
4" CENTER
HOLE/PATTERN: 6/STAGGERED
3/8"Ø STAGGERED
PERFORATIONS
6" TO 14"
6" CENTER SPACING
1/2"Ø STAGGERED
PERFORATIONS
HOLE/PATTERN: 16/STAGGERED
16"- 36"
NOT TO SCALE
PIPE PERFORATION11
LINER DETAILS
15C-08.dwg
1"=60 15C-08
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
PWESTMOR
Snapshot
PWESTMOR
-0+50 0+00 0+50 1+00 1+50 2+00
-0+50 0+00 0+50 1+00 1+50 2+00
-0+50 0+00 0+50 1+00 1+50 2+00
TRASH GUARD
RISER
SKIMMER
NOTES:
1. CONTRACTOR TO CAREFULLY REMOVE THE SKIMMER, RISER, AND TRASH GUARD
AND PROVIDE TO THE OWNER.
2. EXCAVATE INTO THE BERM TO THE REMOVE A PORTION OF THE BARREL AS SHOWN.
3. GROUT THE REMAINING BARREL.
4. PLACE COMPACTED FILL OVER THE EXCAVATED AREA.
36" CPP 150 - FT LONG4'
BARREL
REMOVE THIS
PORTION OF THE
BARREL
CROSS SECTIONS
15C-09.dwg
AS SHOWN 15C-09
A
B
C
2 3 4 5 6 7 8
D
ISSUE DESCRIPTION
PROJECT MANAGER
PROJECT NUMBER
0 1" 2" FILENAME
SCALE
SHEET
DATE
UNIT 4 CELL 5 LINER
Greenville County South Carolina10174879
P. WESTMORELAND, P.E.
0 07/2026 ISSUED FOR PROPOSALS
HDR Engineering Inc.
440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas
PROJECT ENGINEER
DRAWN BY
H: 1" = 30' V: 1" = 30'
CROSS SECTIONSA
15C-04
H: 1" = 30' V: 1" = 30'
CROSS SECTIONSB
15C-04
H: 1" = 30' V: 1" = 30'
CROSS SECTIONSC
15C-04
EXISTING 2025 SURVEY
CELL 5 OPERATIONAL COVER
CELL 5 TOP OF LINER
EXISTING 2025 SURVEY
CELL 5 OPERATIONAL
COVER
CELL 5 TOP OF LINER
EXISTING 2025 SURVEY CELL 5 OPERATIONAL
COVER
CELL 5 TOP OF LINER
TEMPORARY SEDIMENT BASIN A
NTS
15C-02
PWESTMOR
Snapshot
PWESTMOR
File details come from the government source that posted it. Updated .