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Home My WebLink About8003_RowanCountyMSWLF_GWMR_20171201Ms. Jaclynne Drummond, Compliance Hydrogeologist December 1, 2017 NCDENR DWM Solid Waste Section 2 Project No. 063-6572017.300 2017-11-28 draft november 2017 methane report.docx Greg Greene, Planning and Development Specialist, Rowan County Department of Environmental Management, 2727-D Old Concord Road, Salisbury, North Carolina 28146; (704) 216-8591 Jeff Boyd, Landfill Supervisor, Rowan County Department of Environmental Management, 789 Campbell Road, Woodleaf, North Carolina 27054; (704) 278-2211 Mike Plummer, P.E., HDR, 440 S. Church Street, 10th Floor, Charlotte, NC 28202-2075, mplummer@hdrinc.com; (704) 338-6719 (electronic only) g:\projects\rowan\0636572017\phase 300 methane reports\200 delv\250 finals issued\256 final 2017 november re-test\production\2017-11-28 draft november 2017 methane report.docx i2 i3 i1 660650670 680 690 700 700 690 680 670 660 650 640640 OLD LANDFILL ENTRANCE SCALE HOUSE PROPERTY LINE 100-YEAR FLOODPLAIN EXISTING SEDIMENT BASIN EXISTING SEDIMENT BASIN FUTURE MSW LANDFILL (PHASES IV &V) FRENCH DRAIN SAMPLE POINT TO SW-1 (SEE NOTE 6) 710 710 EXISTING SEDIMENT BASIN EXISTING SEDIMENT BASIN EXISTING SEDIMENT BASIN MMW-6A MMW-2A MMW-3MMW-4 MMW-CD MMW-5A MMW-1 MMW-7 MMW-6 705.50MW-9 704.45MW-16 681.64 MW-13 677.98 MW-12 SW-4 664.46MW-23 664.45MW-23A <684.80MW-20 696.26MW-1 680.60MW-24R 661.51MW-6 SW-3 646.87 MW-7 642.43MW-18R 642.44MW-19 706.33MW-17 SW-5 SW-2 MW-25 MW-26 MW-27A MW-28 654.84654.99 659.60 660.94 MW-27 670.58 MMW-5 MMW-2 MMW-8 674.79MW-11 MW-28R661.85 CONSULTANT DESIGN PREPARED REVIEW APPROVED YYYY-MM-DD TITLE PROJECT No.Rev. PROJECTCLIENT Path: \\atlanta\Cadd\Waste Industries\0636572 - Rowan Co\PRODUCTION\_G - GW 2017\ | File Name: 0636572017G002.dwgIF THIS MEASUREMENT DOES NOT MATCH WHAT IS SHOWN, THE SHEET SIZE HAS BEEN MODIFIED FROM: ANSI D01 in0636572017 PHASE 100 DRAWING 10 2017/08/31 SEP MCG BSD RPK ROWAN COUNTY ACTIVE LANDFILLS PERMIT NO.80-03 ROWAN COUNTY, NORTH CAROLINA ROWAN COUNTY GROUNDWATER CONTOUR MAP JULY 24, 2017 0 FEET 250 500 SCALE EXISTING TOPOGRAPHIC CONTOUR FACILITY BOUNDARY APPROXIMATE LIMITS OF WASTE GROUNDWATER SURFACE CONTOURS APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT EXISTING GROUNDWATER MONITORING WELL WITH GROUNDWATER ELEVATION PROPOSED GROUNDWATER MONITORING WELL SURFACE WATER MONITORING POINT COMPLIANCE METHANE MONITORING POINT ASSESSMENT METHANE MONITORING POINT NOT AVAILABLE FRENCH DRAIN MONITORING POINT LEGEND NOTES REFERENCES i1i1 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET. 3. GROUNDWATER ELEVATIONS MEASURED ON JULY 24, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. SURFACE WATER MONITORING POINT SW-1 IS APPROXIMATELY 550 FEET OFF THE MAPPING LIMITS SHOWN AND IS COLLECTED FROM SECOND CREEK. 7. MONITORING WELL MW-27A IS UTILIZED FOR WATER LEVEL MONITORING ONLY. 8. THE LOCATION OF THE FRENCH DRAIN MONITORING POINT IS APPROXIMATE. 9. MW-28R WAS INSTALLED JULY 11, 2017 TO REPLACE MW-28. MW-28 WILL CONTINUE TO BE UTILIZED FOR WATER LEVEL MONITORING. 650 1. OVERALL SITE BASE TOPOGRAPHY PROVIDED BY S&ME ENGINEERING, INC. MW-25 NA SW-4 MW-7646.87 SITE LOCATION MAP 1" = 10,000' SITE LOCATION PE C-2862 PG C-399 GOLDER ASSOCIATES NC, INC.