7002_PasquotankMSWLF_20170613_GWMonReport

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April 2017 Semi-Annual Groundwater Monitoring Report

Pasquotank County Landfill
NC Solid Waste Permit No. 70-02

Prepared for:

Pasquotank County Solid Waste Department
317 Pritchard Street
Elizabeth City, North Carolina 27909

June 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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6/13/2017
6/13/2017
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TOC= 13.17
DTW= 9.20
GWE= 3.97
MW-2
TOC= 9.92
DTW= 6.90
GWE= 3.02
MW-3
TOC= 11.37
DTW= 7.50
GWE= 3.87
MW-4*
TOC= 9.94
DTW= 5.70
GWE= 4.24
MW-5
TOC= 11.12
DTW= 5.60
GWE= 5.52
MW-6
TOC= 13.48
DTW= 7.35
GWE= 6.13
MW-7
TOC= 10.69
DTW= 4.88
GWE= 5.81
MW-8
TOC= 11.14
DTW= 5.70
GWE= 5.44
MW-9
TOC= 11.11
DTW= 5.85
GWE= 5.26
MW-9A
TOC= 12.42
DTW= 7.84
GWE= 4.58
MW-10A
TOC= 11.86
DTW= 6.88
GWE= 4.98
MW-11A
TOC= 12.18
DTW= 8.80
GWE= 3.38
NEW MW-12
TOC= 12.62
DTW= 6.18
GWE= 6.44
MW-1
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 PASQUOTANK COUNTY
 NORTH CAROLINA
 SOLID WASTE DEPARTMENT

PASQUOTANK COUNTY
WATER QUALITY
MONITORING PLAN

GROUNDWATER
POTENTIOMETRIC MAP
APRIL 2017

M.M.G.
J.A.L.
PASQUOTANK 13-1
AS SHOWN
JUNE 2017
PASQUOTANK-D0008
  FIG. 1
MW-1
GWE
DTW
TOC
*
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Table 1Groundwater Elevation DataPasquotank County LandfillApril 12, 2017By:MGDate: 5/18/2017Monitoring LocationWell Installation DateLatitude LongitudeWell Diameter (in)Total Well Depth (ft bgs)6Ground Surface Elevation (ft amsl)7TOC Elevation (ft amsl)Depth to Water (ft)6Water Table Elevation (ft bgs)Screen Interval (ft bgs)Screen GeologyMW-1 1/6/1984 36.24411 76.26527 2.0 22.00 10.20 12.62 6.18 6.44 10-20 sandMW-2 1/6/1984 36.24114 76.26771 2.0 20.02 10.50 13.17 9.20 3.97 10-20 sandMW-3 1/6/1984 36.23622 76.26725 2.0 20.92 8.20 9.92 6.90 3.02 10-20 sandMW-4 1/6/1984 36.23704 76.26169 2.0 19.49 9.50 11.37 7.50 3.87 10-20 sandMW-5 2/23/1993 36.23952 76.26752 2.0 13.70 9.00 9.94 5.70 4.24 1.5-10.5 sandMW-6 2/23/1993 36.23929 76.26589 2.0 19.13 10.20 11.12 5.60 5.52 2.4-11.4 sandMW-7 11/9/1995 36.23900 76.26476 2.0 20.99 10.50 13.48 7.35 6.13 2-12 sandMW-8 11/9/1995 36.23769 76.26326 2.0 13.85 9.20 10.69 4.88 5.81 1.5-11.5 sandMW-9 11/10/1995 36.23608 76.26402 2.0 26.62 9.00 11.14 5.70 5.44 1-11 sandMW-9A 10/3/2001 36.23600 76.26371 2.0 22.99 9.00 11.11 5.85 5.26 5-20 NAMW-10A NA 36.23795 76.26753 2.0 21.89 10.50 12.42 7.84 4.58 NA NAMW-11A 4/10/2013 36.23739 76.26649 2.0 22.45 8.20 11.86 6.88 4.98 5-20 silty sand & sandMW-12 2014 36.23566 76.26524 2.0 23.60 10.20 12.18 8.80 3.38 5-20 sandNOTE:1.) NA = not available2.)3.) bgs = below ground surface4.) amsl = above mean sea level5.) Well construction information from well logs (provided in Appendix A)6.) *Well depth and depth to water from Environment 1, Inc. report dated 5/17/2017, Client ID#60087.) Groundsurface estimated from drawingExisting MW-12 (TOP elev 10.66) was damaged in 2014. New well MW-12 was installed next to the damaged monitoring well. Horizontal location and elevation surveyed by MCA 8-8-2014.H:\Projects\Groundwater Monitoring\2. Groundwater Monitoring Reports\Pasquotank\08 April 2017\Apr17 pqt gw tables-use.xlsxDocuSign Envelope ID: 00737FDE-6135-4E7F-9A8E-22A25AC9BC2E
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Table 5Groundwater VelocityPasquotank County LandfillApril 12, 2017By:MGDate:6/20/2016Monitoring LocationGroundwater Elevation (feet)Hydraulic Conductivity (cm/sec)Porosity (%)GradientVelocity (cm/sec)Velocity (ft/day)MW-16.44 2.74E-05 0.43 0.0034 2.153E-07 6.10E-04MW-23.97 2.74E-05 0.43 0.0071 4.495E-07 1.27E-03MW-33.02 2.74E-05 0.43 0.0044 2.776E-07 7.87E-04MW-54.24 2.74E-05 0.43 0.0053 3.392E-07 9.62E-04MW-65.52 2.74E-05 0.43 0.0044 2.776E-07 7.87E-04MW-76.13 2.74E-05 0.43 0.0011 7.190E-08 2.04E-04MW-85.81 2.74E-05 0.43 0.0008 4.834E-08 1.37E-04MW-10A4.58 2.74E-05 0.43 0.0027 1.696E-07 4.81E-04MW-11A4.98 2.74E-05 0.43 0.0001 8.205E-09 2.33E-05MW-123.38 2.74E-05 0.43 0.0012 7.633E-08 2.16E-04Average Velocity:1.758E-07 4.98E-04NOTE:1. Water level data collected by Environment 1 personnel.3. Velocity Calculated from V=K*i/nV = velocityK = Hydraulic Conductivityi = Gradientn = Porosity2. Hydraulic Conductivity and porosity values averaged from S&ME 9/23/1982 Geotechnical Investigation Report; boing locations B-1 and B-3.H:\Projects\Groundwater Monitoring\2. Groundwater Monitoring Reports\Pasquotank\08 April 2017\Apr17 pqt gw tables-use.xlsxDocuSign Envelope ID: 00737FDE-6135-4E7F-9A8E-22A25AC9BC2E
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