MSW_Unit_4_Cell_5_Addendum_01_-_Drawings_IFP.pdf

PDF 5 MB Posted Aug 26, 2026

Attached to: UNIT 4 CELL 5 LINER CONSTRUCTION TWIN CHIMNEYS LANDFILL
Solicitation number: RFP #27008
Issued by: Greenville County, South Carolina

About this file

Written by GovTribe AI · Oct 12, 2026

This addendum document contains engineering drawings and technical specifications for Unit 4 Cell 5 Liner Construction at Twin Chimneys Landfill in Greenville County, South Carolina. The project encompasses construction of an 8.2-acre municipal solid waste cell liner system within an active landfill facility. The scope of work includes subgrade preparation, installation of 24 inches of on-site compacted clay liner (1x10-5 cm/sec permeability), geosynthetic clay liner, 60-mil textured HDPE geomembrane, geocomposite drainage media, leachate collection piping in various diameters (8-inch through 22-inch), and 24 inches of operational cover soil with site seeding. The drawings detail cell configuration relative to existing active cells (Cells 2, 3, and 4), grading and drainage requirements, control points for quality assurance, and construction details for liner anchor trenches, leachate pipe connections, and tie-ins with adjacent cells. Proposed quantities include approximately 28,000 cubic yards of compacted soil liner, 1,910 cubic yards of leachate column stone, and 28,000 cubic yards of operational cover material. The contractor must obtain on-site clay from available stockpiles and source off-site protective cover soil and riprap from approved borrow areas. Substantial Completion is required within 180 calendar days from Notice to Proceed, with Final Completion within 210 calendar days, subject to liquidated damages of $1,000 per day and $500 per day respectively.

The contractor is responsible for all construction quality control, surveying, and production of as-built documentation, while Greenville County will provide Construction Quality Assurance through a separate consultant. Key technical requirements include proof rolls of the subgrade to demonstrate stability, permeability testing of clay liner, thickness verification, HDPE panel layout approval, and GPS-controlled fine grading for precision installation. All leachate collection hardware must be stainless steel, perforated pipes require specific perforation patterns based on diameter, and temporary stormwater management infrastructure must be maintained throughout construction. The contractor must verify existing ground conditions prior to construction initiation and immediately notify the engineer of any groundwater encountered during excavation. A fuel price adjustment clause applies to soil work and materials, with triggers at 1.10 and 0.90 ratios using SCDOT monthly fuel price indices. The County will retain 10 percent from monthly invoices pending satisfactory completion, and the contractor must provide a 5 percent bid bond and performance/payment bonds equal to 100 percent of the contract value within fifteen working days of award. Insurance coverage must include $1,000,000 per occurrence general liability and automobile liability with statutory workers' compensation coverage.

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Other files

File	Type	Posted
UNIT_4_CELL_5_LINER_CONSTRUCTION_TWIN_CHIMNEYS_LANDFILL_(Addendum_#2_Revision).pdf	PDF	Aug 26, 2026
MSW_Unit_4_Cell_5_Addendum_01_-_00_42_13_-_PROPOSAL_FORM_IFP.pdf	PDF	Aug 26, 2026
UNIT_4_CELL_5_LINER_CONSTRUCTION_TWIN_CHIMNEYS_LANDFILL_(Addendum_#1_Revision).pdf	PDF	Aug 18, 2026
UNIT_4_CELL_5_LINER_CONSTRUCTION_TWIN_CHIMNEYS_LANDFILL.pdf	PDF	Jul 24, 2026
Sample_Construction_Agreement.pdf	PDF	Jul 21, 2026
Fuel_Price_Adjustment_Clause.pdf	PDF	Jul 21, 2026
Weather_Delays.pdf	PDF	Jul 21, 2026
Dwgs_IFP_TCLF_MSW_Unit_4_Cell_5_Landfill_Liner.pdf	PDF	Jul 21, 2026
Specs_IFP_TCLF_MSW_Unit_4_Cell_5_Landfill_Liner.pdf	PDF	Jul 21, 2026
COG_Sub_W9_.pdf	PDF	Jul 20, 2026

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720720

710710

0 75

0750 76

76076

ACTIVE CELL 4

ACTIVE CELL 3

8.5 ACRES

10.3 ACRES

8.5 ACRES

ACTIVE CELL 2

MW-24

PZ-6d

PZ-54

PZ-56

PZ-6s

PZ-77

MW-23

MW-22

MW-25

8.2 ACRES

PROPOSED CELL 5

3:1

4.0%

5.0%

10.0%

4.0%

UNIT 4 CELL 5 SUBGRADE

15C-02A.dwg

1"=60' 15C-02A

0 07/2026 ISSUED FOR PROPOSAL

1 08/2026 ADDENDUM 01

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 ARE BASED ON A DRONE SURVEY ON

AUGUST 06, 2026.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

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

2 3 4 5 6 7 8

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.

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

8/25/26

POINT TABLE

POINT NO.

NORTHING

983645.29

983663.83

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

983651.30

983666.68

983632.10

983620.77

983631.84

983309.83

983380.04

983286.96

983283.49

983236.07

983209.88

983361.19

983428.75

983586.77

EASTING

1605184.98

1605185.30

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

1605088.65

1605115.86

1605113.12

1605371.75

1605208.37

1605114.98

1604892.28

1605432.09

1605447.96

1605664.73

1605771.18

1606016.72

1606071.10

1605431.14

ELEVATION

730.00

0.00

728.00

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

754.00

750.00

743.66

724.00

740.00

750.00

710.73

710.00

700.00

696.00

693.47

691.89

720.00

DESCRIPTION

111 112 113

3:1

4.0%

5.0%10.0%

14110.0%

UNIT 4 CELL 5 SUBGRADE CONTROL

15C-02A.dwg

1"=60' 15C-03

0 07/2026 ISSUED FOR PROPOSAL

1 08/2026 ADDENDUM 01

LEGEND

CONTROL LINE

PROPOSED MAJOR CONTOURS

PROPOSED MINOR CONTOURS

PROPOSED CELL 5

8.2 ACRES

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.

2 3 4 5 6 7 8

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.

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

LF@1.1%

211 LF@2.5%

431 LF@2.5%

234 LF@2.0%

111 LF@2.5%

50 LF@2.0%

740740740

730730

ACTIVE

CELL 2

8.6 ACRES

ACTIVE

CELL 4

10.3 ACRES

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

PROPOSED

CELL 5

8.2 ACRES

10.0%

10.0% 4.0%

5.0%

5.0% 4.0%

4.0%

3:1

.3%

UNIT 4 CELL 5 TOP OF LINER

15C-04.dwg

1"=60' 15C-04

0 07/2026 ISSUED FOR PROPOSAL

1 08/2026 ADDENDUM 01

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 -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

2 3 4 5 6 7 8

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.

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

STORMWATER

DIVERSION CHANNEL

42 43

45 46

LF@1.1%

211 LF@2.5%

431 LF@2.5%

234 LF@2.0%

111 LF@2.5%

50 LF@2.0%

726728

SITE LAYOUT COORDINATE POINTS TABLE

POINT NO.

NORTHING

983591.53

983341.92

983312.42

983337.97

983305.92

983094.93

983224.67

983364.12

983663.17

983663.83

983380.33

983308.54

983431.34

983429.27

983330.14

983636.85

983657.76

983643.91

983620.77

983334.34

983347.86

983503.03

983468.88

983492.74

983540.40

983631.84

983318.12

983379.41

983312.55

983312.07

983288.11

983666.68

983648.69

983236.40

983210.87

983245.70

983348.27

983102.68

983209.88

983271.93

983612.63

983657.57

983547.29

983473.32

983303.71

983209.03

983312.15

983312.30

983317.62

EASTING

1605384.10

1604968.10

1604828.12

1604882.30

1605002.72

1605841.31

1606031.70

1606121.88

1605199.01

1605185.30

1604877.36

1605001.10

1606069.06

1606070.68

1604838.14

1605115.42

1605310.97

1605315.99

1605371.75

1605017.97

1605396.74

1605568.76

1605806.30

1605865.38

1605983.38

1605208.37

1605108.70

1604888.29

1605104.04

1605118.11

1605431.42

1605115.86

1605170.31

1605665.05

1605768.54

1605950.40

1606008.16

1605744.31

1605351.33

1605126.18

1605158.05

1605314.79

1605496.02

1605775.38

1605383.92

1605773.08

1605115.65

1605111.08

1605100.08

ELEVATION

724.00

748.00

749.00

757.99

754.63

730.00

723.33

718.11

732.00

732.22

749.98

754.01

694.07

694.00

750.00

744.00

728.98

732.00

726.00

746.00

716.00

714.00

703.59

702.00

699.45

742.00

740.35

751.48

742.56

741.76

713.06

750.00

737.92

702.00

698.11

698.39

695.80

734.14

745.00

751.00

743.72

728.95

718.23

704.95

716.00

698.16

742.00

742.18

742.66

DESCRIPTION

MAINT-AREA

MAINT AREA

MAINT-AREA

22" LLEACH

MAINT-AREA

8" LEACH

MAINT-AREA

MAINT. AREA

10" LEACH

MAINT-AREA

MAINT=-AREA

MAINT-AREA

CLEANOUT

MAINT-AREA

MAINT AREA

CLEANOUT

8" LEACH

MAINT-AREA

10" LEACH

CLEANOUT

16" LEACH

MAINT-AREA

UNIT 4 CELL 5 TOP OF LINER CONTROL

15C-05.dwg

1"= 60' 15C-05

0 07/2026 ISSUED FOR PROPOSAL

1 08/2026 ADDENDUM 01

LEGEND

CONTROL LINE

PROPOSED MAJOR CONTOURS

PROPOSED MINOR CONTOURS

2 3 4 5 6 7 8

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.

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

8.2 ACRES

ACTIVE CELL 4

10.3 ACRES

ACTIVE CELL3

8.5 ACRES

ACTIVE CELL 2

TEMPORARY

STORMWATER PIPE

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%

211 LF@2.5%

431 LF@2.5%

234 LF@2.0%

111 LF@2.5%

50 LF@2.0%

10.0%

5.0%

4.0%

PROPOSED

CELL 5

8.2 ACRES

UNIT 4 CELL 5 OPERATIONAL COVER

15C-06.dwg

1"=60 15C-06

0 07/2026 ISSUED FOR PROPOSAL

1 08/2026 ADDENDUM 01

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

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

2 3 4 5 6 7 8

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.

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 -0

B 15C-09

12" THICK CLASS "A" RIP

RAP WITH UNDERLYING

NON-WOVEN GEOTEXTILE

STORMWATER PIPE

CROSSING THROUGH

THE BERM

10.0%

5.0%

4.0%

3:1

740740

232233

OPERATIONAL COVER CONTROL TABLE

POINT NO.

NORTHING

983631.84

983591.40

983476.93

983347.78

EASTING

1605208.37

1605384.06

1605321.69

1605396.74

ELEVATION

744.00

726.00

724.93

718.00

DESCRIPTION

OPERATIONAL COVER

OPERATIONAL COVER CONTROL TABLE

POINT NO.

NORTHING

983547.29

983473.32

983645.63

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

983085.85

983100.46

983211.13

983659.03

983632.41

983400.42

983236.82

983492.74

983293.87

983215.27

983295.75

983310.93

EASTING

1605496.02

1605775.38

1605295.67

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

1605777.94

1605748.34

1605768.90

1605284.62

1605171.78

1605132.84

1605665.61

1605865.38

1605981.61

1605913.20

1605381.61

1605115.30

ELEVATION

720.23

706.95

736.00

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

732.00

736.00

700.10

732.00

746.00

742.97

703.99

704.00

699.54

701.02

718.00

744.00

DESCRIPTION

OPERATIONAL COVER

UNIT 4 CELL 5 OPERATIONAL COVER CONTROL

15C-07.dwg

1"=60' 15C-07

0 07/2026 ISSUED FOR PROPSAL

1 08/2026 ADDENDUM 01

LEGEND

CONTROL LINE

PROPOSED MAJOR CONTOURS

PROPOSED MINOR CONTOURS

2 3 4 5 6 7 8

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.

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

8.2 ACRES

ACTIVE CELL 4

10.3 ACRES

ACTIVE CELL3

8.5 ACRES

GEOCOMPOSITE DRAINAGE MEDIA

HDPE GEOMEMBRANE

GEOSYNTHETIC CLAY LINER

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

SEPARATOR

GEOTEXTILE

2' M

PERFORATED PIPE

RAINCOVER (TO BE REMOVED)

CONSTRUCTION

BASELINE

WELDED CAP TO BE

REMOVED AND NEW PIPE

WELDED TO EXISTING PIPE

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'

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

3.0'

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'

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'

12'

RAIN COVER

ANCHOR TRENCH

RAIN COVER

BALLAST

17'

CONSTRUCTION

BASELINE

WELDED CAP

1.00'

LINER ANCHOR TRENCH

LEACHATE

PIPE

2.00'

12'

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.

RAIN COVER (IN AREA SHOWN)

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

AS SHOWN 15C-08

0 07/2026 ISSUED FOR PROPOSAL

1 08/2026 ADDENDUM 01

2 3 4 5 6 7 8

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.

HDR Engineering Inc.

440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas

PROJECT ENGINEER

DRAWN BY

-0+50 0+00 0+50 1+00 1+50 2+00 2+50 3+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

0 07/2026 ISSUED FOR PROPOSAL

1 08/2026 ADDENDUM 01

2 3 4 5 6 7 8

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.

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 2026 SURVEY

CELL 5 OPERATIONAL COVER

CELL 5 TOP OF LINER

EXISTING 2026 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

720720

720 720

710710

0 75 0750 76

76076

DENSE BRUSH

RIP RAP

C/L DITCH

RIP RAP

LIMITS OF SURVEY

MW-24

OW-103

PZ-76

PZ-6d

PZ-54

PZ-56

PZ-6s

PZ-77

MW-23

MW-25

ACCESS ROAD AND

RAIN COVER

15C-10.dwg

1" = 100' 15C-100 08/2026 ISSUED FOR PROPOSAL

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 IN MISCELLANEOUS

SOIL STOCKPILE.

BORINGS (SB & B)

METHANE MONITORING (MM)

PIEZOMETER (PZ)

MONITORING AND OBSERVATION

WELL (MW,OW)

PROPOSED EXISTING ABANDONED

MW-P

MM-P

LEGEND

EXISTING 2021 & 2025 MAJOR CONTOURS

EXISTING 2021 & 2025 MINOR CONTOURS

WETLANDS

UNIT AND CELL BASELINES

PROPERTY LINE

EXISTING TREELINE

CONSTRUCTION AREA

MW-A

MM-#

B-# B-#

PZ-#PZ-#

2 3 4 5 6 7 8

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.

HDR Engineering Inc.

440 S. Church St. Suite 1200 Charlotte, NC 28202-2075 704.338.6700 of the Carolinas

PROJECT ENGINEER

DRAWN BY

CELL 1

17.0 ACRES

CELL 2

8.6 ACRES

CELL 3

8.5 ACRES

CELL 4

10.3 ACRES

PROPOSED CELL 5

8.2 ACRES

ACTIVE UNIT 4 MSW

MISC. SOIL STOCKPILE

1" = 5'

ACCESS ROAD1

CONSTRUCTION

BASELINE

2.0'

EXISTING RAIN COVER

EXISTING

RAIN COVER

BALLAST

17'

20'

EXISTING

20' WIDE

ACCESS ROAD

RAIN COVER

File details come from the government source that posted it. Updated Oct 12, 2026.