6601_NorthamptonCountyMSWLF_GWMR_20170509

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March 2017 Groundwater Monitoring Report

Northampton County Landfill Facility
NC Solid Waste Permit No. 66-01

Prepared for:

Northampton County Public Works
Jackson, North Carolina

May 2017

Prepared by:

© 2017 Smith Gardner, Inc.
This document is intended for the sole use of the client for which it was prepared and
for the purpose agreed on by the client and Smith Gardner, Inc.

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5/9/2017
5/9/2017
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MW1
TOC= 111.49
DTW= 12.89
GWE= 98.60
MW2A MW2BTOC= 111.09
DTW= 12.78
GWE= 98.31
MW3
TOC= 109.61
DTW= 12.45
GWE= 97.16
MW3D*
TOC= 110.07
DTW= 12.36
GWE= 97.71
MW4
TOC= 135.96
DTW= 35.72
GWE= 100.24
MW6
TOC= 137.51
DTW= 38.24
GWE= 99.27
MW7
TOC= 114.85
DTW= 17.02
GWE= 97.83
MW8*
TOC= 114.57
DTW= 16.14
GWE= 82.70
MW5
TOC= 127.48
DTW= 28.48
GWE= 99.00
G:\CAD\Northampton County\Northampton 15-1\sheets\NH-B0005.dwg - 5/1/2017 8:55 AMDRAWN:APPROVED:PROJECT NO:SCALE:FILENAME:DATE:FIGURE NO.PREPARED BY:PREPARED FOR:SMITH14 N. Boylan Avenue, Raleigh NC 27603NC LIC. NO. F-1370 (ENGINEERING)919.828.0577GARDNER+© 2017 Smith Gardner, Inc.NORTHAMPTON COUNTY LANDFILLPOTENTIOMETRIC SURFACE MAPMARCH 2017J.A.L.M.M.G.AS SHOWN1May 2017NORTHAMPTON 15-1NH-B0005MW-1
TOC=
DTW=
GWE=
*
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Table 1Groundwater Elevation DataNorthampton County LandfillMarch 30, 2017By: MGDate: 4/12/2017Monitoring LocationWell Installation DateLatitude LongitudeWell Diameter (in)Total Well Depth (ft bgs)Ground Surface Elevation (ft amsl) TOC Elevation (ft amsl)Depth to Water (ft)5Water Table Elevation (ft amsl)Screen Interval (ft bgs)Screen GeologyMW-1 NA 36.41016 -77.44358 2 37.90 6109.21 111.49 12.89 98.60 NA NAMW-2B NA 36.40955 -77.44385 2 35.00 6108.80 111.09 12.78 98.31 NA NAMW-3 NA 36.40876 -77.44423 2 28.10 6106.78 109.61 12.45 97.16 NA NAMW-3D 4/1/1994 36.40879 -77.44420 2 43.00 108.06 110.07 12.36 97.71 38-43 sand and clayMW-4 NA 36.40892 -77.44079 2 48.25 133.64 135.96 35.72 100.24 NA NAMW-5 3/30/1994 36.41021 -77.44195 2 40.00 127.41 127.48 28.48 99.00 30-40 sand with gravelMW-6 3/29/1994 36.40900 -77.44016 2 47.00 135.62 137.51 38.24 99.27 32-47 clay and sand with gravelMW-7 3/31/1994 36.40799 -77.44379 2 25.00 112.05 114.85 17.02 97.83 10-25 silty sandMW-8 4/27/1994 36.40880 -77.44479 2 6.67 96.69 98.84 16.14 82.70 1.67-6.67 silty sandNOTE:1.) NA = not available2.) bgs = below ground surface3.) amsl = above mean sea level4.)5.) Depth to water, below top of casing, measured by Smith Gardner, Inc personnel March 30, 20176.) Depth to well bottom measured by Smith Gardner, Inc personnel March 30, 2017.Well construction information from well logs (provided in Appendix A). Logs for MW-1, MW-2, MW-3 and MW-4 could not be located.H:\Projects\Groundwater Monitoring\2. Groundwater Monitoring Reports\Northampton\4. Mar 2017\mar17 NH gw tables.xlsxDocuSign Envelope ID: BABC5740-1975-4447-BC7E-A286A7990489
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Table 4Detected Organic ConstituentsNorthampton County LandfillMarch 30, 2017By: MGDate: 4/11/2017MDL RL SWSL2L StandardMCL MW-2B MW-3 MW-3D MW-4 MW-5 MW-6 MW-7 MW-81,1-Dichloroethane 0.083 0.50 5 6 NE 2.3 <0.083 <0.083 3.2 0.53 1.1 2.6 1.61,1-Dichloroethene 0.083 0.50 5 7 100 <0.083 <0.083 <0.083 <0.083 <0.083 <0.083 <0.083 1.41,4 Dichlorobenzene 0.050 0.50 1 6 75 1.3 2.4 <0.05171.1 0.797.84.6Acetone0.31 5 100 6000 NE <0.31 <0.31 <0.31 95 9 350 7.8 40Benzene 0.048 0.50 1 1 51.5 1.6<0.0483.30.732 4 2.1Chlorobenzene 0.062 0.50 3 50 100 3.6 22 <0.062 6.6 2 0.87 39 9.1Chloroethane 0.220 0.50 10 3000 NE <0.22 <0.22 <0.22 0.9 <0.22 <0.22 <0.22 <0.22cis-1,2-Dichloroethylene 0.056 0.50 5 70 NE 2.3 <0.056 0.63 12 1.2 2.5 9.6 30m,p-Xylenes0.120 1.00 NE NE NE <0.12 <0.12 <0.12 2.9 <0.12 <0.12 <0.12 <0.12Methylene Chloride 0.083 1.00 1 5 NE 2.2 <0.083 0.92 J4.12.5 1.8 <0.083 <0.083o-Xylene0.044 0.50 NE NE NE <0.044 <0.044 <0.044 3.4 <0.044 0.74 <0.044 <0.044Tetrachlorothylene 0.098 0.50 1 0.7 50.79<0.0980.81 0.92 0.96 2.6<0.0981.4Trichloroethylene 0.078 0.50 1 3 5 <0.078 <0.078 <0.078 1.2 <0.078 1.2 1.45.7Vinyl chloride0.097 0.50 1 0.03 2 <0.097 <0.097 <0.097 <0.097 <0.097 <0.0970.84 0.89Xylenes0.150 1.50 5 500 10000 <0.15 <0.15 <0.15 6.4 <0.15 0.74 J <0.15 <0.15NOTE:MDL -Method Detection LimitRL -Laboratory established reporting limitSWSL -Solid Waste Section Quantitation Limits2L-Groundwater Standards (15A NCAC 2L 0200)MCL - Federal Maximum Contaminant LimitBold-Detection above 2L StandardJ-Laboratory defined as detected but below the Reporting Limit, therefore the value is an estimated concentration<MDL -Not detected at or above the MDLNE -Standard Not EstablishedTable units are presented in ug/l.Lab analysis by Prism Laboratories, work order 7040013, report dated 3/31/2017.H:\Projects\Groundwater Monitoring\2. Groundwater Monitoring Reports\Northampton\4. Mar 2017\mar17 NH gw tables.xlsxDocuSign Envelope ID: BABC5740-1975-4447-BC7E-A286A7990489
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