6019_MecklenburgCoFoxholeMSWLF_GWMR_20170808

May 2017 Semi-Annual Monitoring Report
Foxhole Landfill - Permit # 60-19
Charlotte, North Carolina
S&ME Project No. 1356-07-003
Prepared for:
Mecklenburg County LUESA
700 North Tryon Street
Charlotte, North Carolina 28202
Prepared by:
S&ME, Inc.
9751 Southern Pine Boulevard
Charlotte, NC 28273
August 9, 2017
S&ME, Inc. | 9751 Southern Pine Boulevard | Charlotte, NC 28273 | p 704.523.4726 | f 704.525.3953 | www.smeinc.com
August 9, 2017
Mecklenburg County LUESA
700 North Tryon Street
Charlotte, North Carolina 28202
Attention: Amber Grzymski
Reference: May 2017 Semi-Annual Monitoring Report
Foxhole Landfill - Permit # 60-19
Charlotte, North Carolina
S&ME Project No. 1356-07-003
Dear Ms. Grzymski:
S&ME Inc. (S&ME) has completed the May 2017 Semi-Annual Monitoring and Reporting for Mecklenburg
County’s Foxhole Landfill. This report presents the results of the second monitoring event of the year for
the facility.
S&ME appreciates the continued opportunity to provide services to you and Mecklenburg County. If you
have any questions or need additional information regarding this report, please contact Ed Henriques at
[phone].
Sincerely,
S&ME, Inc.
Jasmine Tayouga, E.I. Julie P. Robertson, P.G.
Staff Professional Project Manager/Senior Geologist
cc: Jaclynne Drummond, NCDENR – Solid Waste Section
May 2017 Semi-Annual Monitoring Report
Foxhole Landfill - Permit # 60-19
Charlotte, North Carolina
S&ME Project No. 1356-07-003
August 9, 2017 ii
Table of Contents
1.0 Introduction ............................................................................................................ 1
2.0 Groundwater Levels and Flow............................................................................ 1
3.0 Analytical Data ...................................................................................................... 1
3.1 Monitoring Well Sampling .............................................................................................. 2
3.1.1 Volatile Organic Compounds .............................................................................................. 2
3.1.2 Total Metals......................................................................................................................... 2
3.1.3 Dissolved Metals ................................................................................................................. 2
3.2 Surface Water Sampling .................................................................................................. 3
3.2.1 Volatile Organic Compounds .............................................................................................. 3
3.2.2 Metals .................................................................................................................................. 3
3.3 Lift-Station Leachate Sample .......................................................................................... 3
4.0 Statistical Analysis ................................................................................................ 4
Appendices
Appendix I – Drawings
Appendix II – Tables
Appendix III – Well Sampling Logs and Laboratory Reports
Appendix IV – Statistical Analysis Procedure Sheets
Appendix V - Lift Station Laboratory Report
May 2017 Semi-Annual Monitoring Report
Foxhole Landfill - Permit # 60-19
Charlotte, North Carolina
S&ME Project No. 1356-07-003
August 9, 2017 1
1.0 Introduction
S&ME, Inc. (S&ME) was contracted by Mecklenburg County to provide groundwater and surface water
monitoring services at the Highway 521 Landfill “Foxhole” located at 17131 Lancaster Highway in
Charlotte, North Carolina. This monitoring event was conducted on May 9th and 10th, 2017.
This report presents the results of the first monitoring event for the year 2017 at the facility, which
included the sampling of one background groundwater monitoring well (MW-1R), nine compliance
groundwater monitoring wells (MW-2R, MW-3, MW-7, MW-8, MW-10, MW-10A, MW-11, MW-11A, MW-
12, and MW-13), and two surface water locations (SW-1 and SW-2). Please note that five (5) compliance
wells (MW-4, MW-5, MW-6, MW-6A and MW-9) were abandoned in 2011 and 2012 as part of the Phase 2
landfill expansion. The next monitoring event is scheduled for November 2017.
2.0 Groundwater Levels and Flow
The water table elevations and our interpretation of the groundwater surface expressed as a
potentiometric map along with groundwater flow direction are shown on Drawing 1 of 1 located in
Appendix I – Drawings. Based upon the groundwater elevations in the vicinity of the landfill,
groundwater in this area is projected to flow from west to east toward Six-Mile Creek. Groundwater levels
obtained during the May 2017 monitoring event, as well as monitoring well construction data, are
presented in Table 1 located in Appendix II – Tables.
The hydraulic gradient (i) in the vicinity of each well was estimated by calculating the vertical difference
between the groundwater elevation at each well and one or more nearby contour lines from Drawing 1
of 1 - Groundwater Surface Map. This value was then divided by the horizontal distance measured from
the well to the selected groundwater elevation contour line. Groundwater velocity was calculated by
multiplying the gradient (i) by the hydraulic conductivity (k) and dividing by the estimated effective
porosity (ne) of the aquifer. Table 2 in Appendix II summarizes the groundwater flow rates for the
monitoring wells.
3.0 Analytical Data
Analytical results for the landfill monitoring wells are summarized in Table 4 in Appendix II. Groundwater
detections at or above the 15A NCAC 2L .0202 Groundwater Standards (2L Standards) and/or Solid Waste
Groundwater Protection Standards (SW GWP Standards) are highlighted in gray. Field measurements of
pH, conductivity, turbidity, and temperature are summarized in Table 3 in Appendix II. Well sampling
logs containing this information are included in Appendix III. Analytical results for the surface water
sampling locations are summarized in Table 5 in Appendix II. Surface water detections at or above the
15A NCAC 2B Freshwater Standards (2B Standards) are highlighted in gray. The monitoring wells and
surface water locations were sampled for Appendix I volatile organic compounds and metals.
May 2017 Semi-Annual Monitoring Report
Foxhole Landfill - Permit # 60-19
Charlotte, North Carolina
S&ME Project No. 1356-07-003
August 9, 2017 2
3.1 Monitoring Well Sampling
During May 2017, the compliance and background monitoring wells that are part of the routine semi-
annual monitoring event were sampled.
3.1.1 Volatile Organic Compounds
Chloroform was detected in compliance groundwater monitoring well MW-7 at a concentration below its
respective 2L Standard of 70 µg/L. No other volatile organic compounds were detected in groundwater
monitoring wells during the May 2017 sampling event.
3.1.2 Total Metals
Two or more inorganic constituents (metals) were detected in each of the groundwater monitoring wells
sampled. Concentrations of antimony, barium, beryllium, copper, lead, nickel, thallium, and zinc were
detected at concentrations less than their respective 2L Standard and SW GWP Standard.
Chromium was detected at concentrations of 14.4 µg/L and 15.8 µg/L in compliance monitoring wells
MW-2R and MW-10A, respectively, these concentrations are greater than the 2L Standard of 10 µg/L.
Cobalt was detected at above its respective SW GWP Standard of 1 µg/L in compliance groundwater
monitoring well MW-2R at a concentration of 4.62 J µg/L. It is important to point out that cobalt was also
detected in background well MW-1R at a concentration of 1.52 J µg/L, which also exceeds the published
SW GWP Standard of 1 µg/L. Cobalt has generally been detected in this background well since
monitoring commenced in 1999.
Vanadium was detected at concentrations greater than its respective SW GWP Standard of 0.3 µg/L in
compliance groundwater monitoring wells MW-2R, MW-3, MW-10, MW-10A, MW-11A, MW-12, and MW-
13 at concentrations ranging from 1.49 J to 38.8 µg/L. It is important to point out that vanadium was also
detected in background well MW-1R at a concentration of 1.81 J µg/L, which is greater than the published
SW GPS Standard of 0.3 µg/L. Vanadium has been detected frequently in this background well since
monitoring commenced in 1999.
The metals detected in the monitoring wells during the May 2017 monitoring event are summarized in
Table 4A in Appendix II. Based on previous metals concentrations in the background groundwater
monitoring well MW-1/1R, it appears that the metals concentrations are from naturally occurring
dissolved metals extracted from suspended solids (silts and clays) collected during sample extraction
rather than an anthropogenic source.
3.1.3 Dissolved Metals
To initiate an assessment of groundwater sample turbidity impacts on reported metals concentrations in
groundwater at the site, ‘split’ samples were taken during sampling at any groundwater well location with
a turbidity reading higher than 10 NTUs (Table 3 in Appendix II). Split samples include collecting the
compliance required total metals samples as well as an additional metals sample that is filtered in the lab
to determine a dissolved metals concentration. This informal review was not required by the facility
permit, rather it was conducted to help assess if suspended or colloidal solids in groundwater samples
were influencing the total metals concentrations reported.
May 2017 Semi-Annual Monitoring Report
Foxhole Landfill - Permit # 60-19
Charlotte, North Carolina
S&ME Project No. 1356-07-003
August 9, 2017 3
Table 4B provides a summary of the detected dissolved metals concentrations and the dissolved metals
concentrations for each well where these sample pairs were obtained during this event. The table also
includes the field turbidity of the samples and a calculation of the percent difference between the total
metals concentrations and the dissolved metal concentrations. Note, if the metal analyte was reported as
below the reporting limit, the reporting limit was used for the calculation.
Monitoring well MW-2R exhibited the highest sample field turbidity at 176.40 NTU. For the analytes
detected at monitoring well MW-2R with concentrations greater than 1 µg/L, the calculated percent
change values ranged from 44% to 88%, indicating substantially lower metal analyte concentrations for
the sample pair’s filtered, dissolved metals sample. Similarly, samples obtained from monitoring well
MW-12, with a field sample turbidity of 19.4 NTU, were calculated to yield percent change values that
approximate 19%. Similar trends in the data were recognized from the paired data obtained at the other
wells. These observations suggest that suspended or colloidal solids in the total metals samples are
contributing to the reported groundwater sample concentrations. This can be significant as indicated by
the observed results for vanadium at monitoring wells MW-1R, MW-2R, and MW-13, where the filtered
samples reported concentrations that were less than the corresponding 2L Standard, whereas the
companion unfiltered total metal sample reported concentrations greater than the 2L Standard.
A comparison of the total chromium vs dissolved chromium concentrations reported for the samples
obtained from monitoring well MW-2R, suggest that the exceedance of the 2L Standard for chromium
was likely due to suspended solids in the sample obtained.
A comparison of the total nickel vs dissolved nickel concentrations reported for the samples obtained
from monitoring well MW-13 suggest that perhaps the suspended solids in the sample obtained do not
play as large of a role in concentrations as nickel was detected at a higher concentration in the dissolved
sample than in the total sample. Both of these detections were well below the 2L Standard for nickel.
These observations suggest that despite the use of low-flow sampling methods, some obtained samples
may overestimate the metals concentrations due to suspended or colloidal solids in the samples.
3.2 Surface Water Sampling
3.2.1 Volatile Organic Compounds
No volatile organic compounds were detected in the surface water samples during the May 2017
sampling event.
3.2.2 Metals
Two (2) or more inorganic constituents (metals) were detected in the surface water sample locations.
Concentrations of barium, nickel, and vanadium were detected in one or both surface water locations at
concentrations below their respective 2B Standard.
3.3 Lift-Station Leachate Sample
On May 10, 2017, a sample of landfill leachate was collected from the lift-station. The collected sample
was submitted for laboratory analyses for Volatile Organic Compounds (VOCs), Semi-Volatile Organic
May 2017 Semi-Annual Monitoring Report
Foxhole Landfill - Permit # 60-19
Charlotte, North Carolina
S&ME Project No. 1356-07-003
August 9, 2017 4
Compounds (SVOCs), Pesticides, PCBs, Appendix I total metals, Cyanide (total), Ammonia, Biological
Oxygen Demand, and Chemical Oxygen Demand. Appendix V contains the laboratory analytical report
for this sample.
4.0 Statistical Analysis
S&ME compared the water quality data with the 2L Standards and the SW GWP standards and performed
a statistical evaluation of the data. S&ME utilized three statistical methods to evaluate statistically
significant increases (SSI) between the compliance monitoring wells and the background monitoring well
(MW-1/1R).
The first method utilized was a one-way parametric Analysis of Variance (Parametric ANOVA). The
parametric ANOVA analysis is recommended by the 1992 guidance document for parameters with fewer
than 15% non-detects in a specific well.
The second method used was the Kruskal-Wallis non-parametric rank method. The Kruskal-Wallis
method is recommended by the 1992 guidance document for parameters that have 15% to 90% non-
detects in a specific well.
The third method used was an inter-well non-parametric prediction limit. The prediction limit was used for
parameters with greater than 90% non-detects in a specific well. The 1992 guidance document
recommends this method when a significant portion of the samples are non-detect.
Table 6 in Appendix II summarizes the results of the statistical analysis. No SSI were indicated by the
statistical tests performed, comparing the most recent event sample results for compliance monitoring
wells against background monitoring well data. Copies of the analytical procedures used to perform the
analysis used by the ChemStat software are included in Appendix IV.
Time vs concentrations charts for chromium in wells MW-2R and MW-10A generally depict periodic spikes
in the detected concentrations; however, most were not sustained or validated during the subsequent
monitoring event. Mann-Kendall trend analysis of chromium in MW-2R indicates no evidence of an upper
ward trend in concentrations over time. Mann-Kendall trend analysis of chromium in MW-10A, indicated
evidence of an upward trend. The historic concentrations of chromium in well MW-10A exhibit
noteworthy variability, likely related to differences in turbidity in the well during sample collection. It is
noted that the 2L Standards do not apply to sediment or other particulate matter preserved in
groundwater samples as a result of groundwater sample collection procedures or well construction issues.
Redevelopment of wells MW-2R and MW-10A, followed by verification sampling should be considered to
verify these SSIs and assess current conditions at these monitoring wells.
Time vs concentrations charts for cobalt in wells MW-2R generally depict stable or declining
concentrations over time, which is further supported by Mann-Kendall trend analyses indicating no
evidence of an upward trend in this well.
It is important to point out that time vs concentrations charts for concentrations of vanadium in wells
MW-3, MW-10, MW-10A, MW-11A, MW-12, and MW-13 in MW-10A generally depict stable or declining
concentrations over time. These observations are further supported by Mann-Kendall trend analyses
indicating no evidence of an upward trend for vanadium concentrations over time in these wells. The
May 2017 Semi-Annual Monitoring Report
Foxhole Landfill - Permit # 60-19
Charlotte, North Carolina
S&ME Project No. 1356-07-003
August 9, 2017 5
historical concentrations of vanadium in MW-10A are likely indicative of turbidity in the well. The majority
of the wells on site have historically had detections of vanadium above the published 2L standard
concentration, including background monitoring well MW-1R.
The presence of chromium, cobalt and vanadium in the background well coupled with no evidence of
upward trends for these constituents provides solid evidence to support that these constituents likely area
a natural occurrence in the facility’s groundwater. 15A NCAC 02L .0202 contains a provision for instances
where a naturally occurring substances exceed the published standards, such that standard shall be the
naturally occurring concentration.
Appendices
Appendix I – Drawings
LLLLLL631.80MW-2R584.96593.77MW-10/10A601.28MW-8614.59MW-7625.36MW-3654.87PHASE 1, CELL 2(AS-BUILT)PHASE 1, CELL1(AS BUILT)PHASE 2LIMIT OF SURVEY650
SW-2SW-1LEGENDPROPERTY LINEEXISTING GRADE CONTOURSTREAM NAMEEXISTING MONITORING WELL LOCATIONEXISTING NESTED MONITORING WELL LOCATIONGROUNDWATER SURFACE (MAY 2017)GROUNDWATER SURFACE ELEVATION (FT-MSL)SURFACE WATER SAMPLING LOCATIONGROUNDWATER FLOW DIRECTION1.EXISTING TOPOGRAPHY PREPARED BY INDEPENDENT MAPPING CONSULTANTS, INC.DATE OF PHOTOGRAPHY, MARCH, 2012, PROVIDED BY HDR.2.PHASE 2 GRADING PROVIDED BY HDR.3.MONITORING WELL MW-12 AND MW-13 LOCATIONS BASED ON 2012 SURVEY BYCAROLINA SURVEYORS, INC.REFERENCE:HIGHWAY 521
S&ME ENGINEERING LICENSE NO.F-01769751 SOUTHERN PINE BLVD.
CHARLOTTE, N.C. 28273
PH. [phone]NO.DATE DESCRIPTION BYDRAWING:OF:DATE:SCALE:PROJECT NUMBERDESIGNED BY:APPROVED BY:DRAWN BY:CHECKED BY:WWW.SMEINC.COM
GROUNDWATER SURFACE MAP
MAY, 2017
FOXHOLE LANDFILL (PERMIT NO. 60-19)
CHARLOTTE, NORTH CAROLINA1356-07-003AS SHOWN08-03-2017JPRWRH11JPR654.87
Appendix II – Tables
LATITUDE LONGITUDE GROUND TOH DTW - TOH GW ELEV.
(MM/DD/YY)(ft)(ft-MSL)
MW-1R 03/23/09 35.0164638° -080.8495912° 687.40 690.65 +3 .00 to 33.0 33.0 to 48.0 0.0 to 29.0 29.0 to 31.0 #2 31.0 to 48.0 SAP 35.78 654.87
MW-2R 02/16/10 35.0129978° -080.8487614° 660.90 663.80 +2.90 to 20.0 20.0 to 35.0 0.0 to 16.0 16.0 to 18.0 #2 18.0 to 35.0 SAP 32.00 631.80
MW-3 03/19/99 35.0162047° -080.8459443° 641.68 644.08 +2.25 to 10.0 10.0 to 25.0 0.0 to 5.0 5.0 to 8.0 #1 8.0 to 25.0 SAP 18.72 625.36
MW-7 03/16/99 35.0168592° -080.8441975° 634.81 637.90 +2.86 to 10.0 10.0 to 25.0 0.0 to 5.0 5.0 to 7.0 #1 7.0 to 25.0 SAP 23.31 614.59
MW-8 03/08/99 35.0160863° -080.8419354° 618.90 620.19 +2.35 to 10.0 10.0 to 25.0 0.0 to 5.0 5.0 to 8.0 #1 8.0 to 25.0 SAP 18.91 601.28
MW-10 04/02/99 35.0148756° -080.8403383° 624.23 627.03 +2.65 to 25.0 25.0 to 40.0 0.0 to 21.0 21.0 to 23.0 #1 23.0 to 40.0 SAP 33.26 593.77
MW-10A 03/31/99 35.0148756° -080.8403383° 624.30 627.32 +2.65 to 55.0 55.0 to 60.0 0.0 to 50.0 50.0 to 53.0 #1 53.0 to 60.0 SAP 33.77 593.55
MW-11 03/06/99 35.0133929° -080.8392855° 593.53 595.67 +1.47 to 7.0 7.0 to 22.0 0.0 to 3.0 3.0 to 5.0 #1 5.0 to 22.0 SAP 10.71 584.96
MW-11A 02/26/99 35.0133929° -080.8392855° 594.12 596.38 +1.62 to 40.0 40.0 to 45.0 0.0 to 36.0 36.0 to 38.0 #1 38.0 to 45.0 SAP 11.21 585.17
MW-12 10/02/12 35.0105705° -080.8450554° 633.10 636.07 +2.94 to 15.7 15.7 to 30.7 0.0 to 11.0 11.0 to 14.0 #2 14.0 to 31.2 SAP 21.39 614.68
MW-13 10/03/12 35.0122690° -080.8405290° 619.30 622.36 +3.04 to 23.0 23.0 to 38.0 0.0 to 18.0 18.0 to 21.0 #2 21.0 to 38.5 SAP 25.98 596.38
Notes:
(ft-MSL)Feet Mean Sea Level #1 Filter Sand Fine to Very Fine Grained Silica Sand
(ft-bls)Feet Below Land Surface Bentonite Bentonite Pellets
TOH Top of Hinge Sch. 40 Schedule 40 Pipe
Ground Ground Surface 0.010 Slot 0.010-Inch Machine-Slotted Pipe
DTW Depth to Water Neat Cement Cement Mixture without Bentonite
GW ELEV.Groundwater Elevation NA Not Available
#2 Filter Sand Medium to Fine Grained Silica Sand SAP Saprolite
The "A" suffix on the well locations indicates the deep well of the pair.
NM Not Measured
May 2017
2-INCH, SCH. 40, PVC 2-INCH, 0.010 SLOT, PVC NEAT CEMENT BENTONITE
(decimal degrees)(ft-MSL)(ft-bls)(ft-bls)(ft-bls)
SCREEN INTERVAL GROUT INTERVAL SEAL INTERVAL FILTER
PACK
SIZE
FILTER PACK
INTERVAL
GEOLOGY IN
SCREEN
INTERVAL(ft-bls)(ft-bls)
Table 1
Well Construction Summary and Water Level Data
Mecklenburg County Highway 521 Landfill - Foxhole
S&ME Project No: 1356-07-003
WELL ID
INSTALL
DATE
GPS COORDINATES SURVEY ELEVATIONS CASING INTERVAL
Table 2
May 2017 - Groundwater Flow Velocity
Mecklenburg County Highway 521 Landfill "Foxhole"
Permit # 60-19
S&ME Project No. 1356-07-003
Well Identification
Hydraulic
Conductivity (K)
ft/yr
Effective Porosity (ne)
%
Hydraulic Gradient (i)
ft/ft
Seepage Velocity (v)
ft/yr
6019 MW-1R 3.3E+02 0.15 0.023 51
6019 MW-2R 6.6E+02 0.13 0.008 42
6019 MW-3 3.6E+02 0.09 0.006 23
6019 MW-7 1.3E+03 0.20 0.006 38
6019 MW-8 1.6E+03 0.20 0.016 125
6019 MW-10 5.0E+02 0.23 0.012 26
6019 MW-11 1.9E+02 0.25 0.003 2
6019 MW-12 3.1E+02 0.27 0.004 4
6019 MW-13 2.8E+03 0.25 0.009 98
Notes:
(1) Hydraulic Conductivity was calculated from slug tests performed after well construction.
(2) Effective porosity was estimated from soils collected within the saturated portion of screen interval during well
construction.
(3) Hydraulic gradient calculated by measuring linear feet between selected contour intervals.
(4) Seepage velocity v = (K*i)/ne
Well ID Depth to Water
TOC (ft-bls)pH Temperature
(°C)
Conductance
(μS/sec)
Turbidity
(NTU)
6019 MW-1R 35.78 6.24 17.5 54 28.62
6019 MW-2R 32.00 5.80 17.3 37 176.40
6019 MW-3 18.72 6.57 15.8 59 2.35
6019 MW-7 23.31 6.34 15.8 66 0.28
6019 MW-8 18.91 5.81 15.0 63 0.56
6019 MW-10 33.26 6.31 17.6 56 8.13
6019 MW-10A 33.77 11.16 17.7 215 6.58
6019 MW-11 10.71 6.13 16.2 288 1.43
6019 MW-11A 11.21 7.53 17.4 212 1.05
6019 MW-12 21.39 6.68 18.7 84 19.40
6019 MW-13 25.98 6.80 15.9 55 21.34
Notes:
(1) μS = microSiemens
(2) ft-bls = feet below land surface
(3) °C = degrees Celsius
Permit # 60-19
S&ME Project No. 1356-07-003
Table 3
May 2017 - Field Parameters in Groundwater Monitoring Wells
Mecklenburg County Highway 521 Landfill "Foxhole"
EPA Appendix I Volatile
Organic Compounds
Method 8260 (µg/L)
NCDENR
SWSL
15A
NCAC
2L
Solid Waste
GWP ST
6019
MW-1R
6019
MW-2R
6019
MW-3
6019
MW-7
6019
MW-8
6019
MW-10
6019
MW-10A
6019
MW-11
6019
MW-11A
6019
MW-12
6019
MW-13
Chloroform 5 70 NE 1.0 J
EPA Appendix I Total
Metals Method
6010D/6020B (µg/L)
Antimony 6 NE 1 0.500 J
Barium 100 700 NE 70.3 J 87.3 J 31.8 J 16.8 J 18.7 J 36.6 J 9.24 J 50.5 J 23.1 J 19.8 J 51.8 J
Beryllium 1 NE 4 0.180 J 0.184 J
Chromium 10 10 NE 2.10 J 14.4 3.94 J 1.53 J 3.47 J 15.8 3.16 J 5.01 J
Cobalt 10 NE 1 1.52 J 4.62 J
Copper 10 1000 NE 52.9 1.63 J
Nickel 50 100 NE 6.89 J 7.29 J 3.02 J
Thallium 5.5 NE 0.28 0.136 J
Vanadium 25 NE 0.3 1.81 J 11.2 J 4.28 J 4.87 J 38.8 6.05 J 3.40 J 1.49 J
Zinc 10 1000 NE 12.2 22.6
Notes for Table 4A:
(1) µg/L = micrograms per liter (parts per billion)
(2) 15A NCAC 2L = North Carolina Groundwater Quality Standards
(3) GWP ST = Solid Waste Groundwater Protection Standard
(4) NE = No established standard
(5) J = Reported value is between method detection limit (MDL) and method reporting limit (MRL)
(6) B = Analyte was detected in associated laboratory method blank.
(7) Bold and highlighted indicates above 15A NCAC 2L or SW GWP standard
(8) Target analytes not shown were reported as below detection limits
(9) SWSL = North Carolina Department of Environmtent and Natural Resources Solid Waste Section Limit established in 2007
Table 4A
May 2017 - Detected Analytes in Groundwater Monitoring Wells
Mecklenburg County Highway 521 Landfill "Foxhole"
Permit # 60-19
S&ME Project No. 1356-07-003
Table 4B
May 2017 - Dissolved Metals in Groundwater Monitoring Wells
Mecklenburg County Highway 521 Landfill "Foxhole"
Permit # 60-19
S&ME Project No. 1356-07-003
6019 MW-1R 6019 MW-2R 6019 MW-12 6019 MW-13 15A NCAC 2L Solid Waste
GWP ST
Barium Totals 70.3 J 87.3 J 19.8 J 51.8 J 700 NE
Dissolved 57.1 J 48.8 J 15.1 J 45.3 J
Field Turbidity 28.62 176.40 19.4 21.34
% difference 19%44%24%13%
Beryllium Totals 0.180 J 0.184 J NE 4
Dissolved 0.130 U 0.130 U
Field Turbidity 28.62 176.40
% difference 28%29%
Chromium Totals 2.10 J 14.4 5.01 J 10 NE
Dissolved 1.00 U 2.46 J 4.30 J
Field Turbidity 28.62 176.40 19.4
% difference 52%83%14%
Cobalt Totals 1.52 J 4.62 J NE 1
Dissolved 1.10 U 2.20 J
Field Turbidity 28.62 176.40
% difference 28%52%
Copper Totals 52.9 1000 NE
Dissolved 10.4
Field Turbidity 176.40
% difference 80%
Nickel Totals 6.89 J 7.29 J 3.02 J 2.20 U 100 NE
Dissolved 5.13 J 3.75 J 2.95 J 6.15 J
Field Turbidity 28.62 176.40 19.4 21.34
% difference 26%49%2%-180%
Thallium Totals 0.136 J NE 0.28
Dissolved 0.110 U
Field Turbidity 176.40
% difference 19%
Vanadium Totals 1.81 J 11.2 J 3.40 J 1.49 J NE 0.3
Dissolved 1.40 U 1.40 U 2.20 J 1.40 U
Field Turbidity 28.62 176.40 19.4 21.34
% difference 23%88%35%6%
Zinc Totals 12.2 22.6 1000 NE
Dissolved 8.81 JB 10.7 B
Field Turbidity 28.62 176.40
% difference 28%53%
Notes for Table 4B:
(1) µg/L = micrograms per liter (parts per billion)
(2) 15A NCAC 2L = North Carolina Groundwater Quality Standards
(3) GWP ST = Solid Waste Groundwater Protection Standard
(4) NE = No established standard
(5) J = Reported value is between method detection limit (MDL) and method reporting limit (MRL)
(6) U = Analyte was not detected at or above the method reporting limit shown
(7) Bold and highlighted indicates above 15A NCAC 2L or SW GWP standard
(8) SWSL = North Carolina Department of Environmtent and Natural Resources Solid Waste Section Limit established in 2007
EPA Appendix I Metals (ug/L)
(9) % Difference = Percent difference between the total metal concentration and the dissolved metal concentration. If the analyte was reported as being below the
reporting limit, the reporting limit concentration was used for the calculation.
Table 5
May 2017 - Detected Analytes in Surface Water Samples
Mecklenburg County Highway 521 Landfill "Foxhole"
Permit # 60-19
S&ME Project No. 1356-07-003
EPA Appendix I Metals
Method 6010B/6020
(µg/L)
15A NCAC
2B SW-1 SW-2
EPA Appendix I Metals
Method 6010B/6020
(µg/L)
Barium 1,000 28.0 J 25.1 J
Nickel 88 6.01 J
Vanadium NE 2.52 J 1.48 J
Notes:
(1) µg/L = micrograms per liter (parts per billion)
(2) 15A NCAC 2B = North Carolina Surface Water Quality Standards for Freshwater
(3) NE = No established standard
(5) B = Analyte was detected in associated laboratory method blank
(6) Bold and highlighted indicates concentration reported is above 15A NCAC 2B
(7) Compounds not shown were not detected.
(8) Target analytes not shown were reported as below detection limits
No Volatile Organic Compounds Detected in Surface Water Samples
(4) J = Reported value is estimated between method detection limit (MDL) and method
reporting limit (MRL)
Antimony MW-10 97 PL FALSE
MW-10A 79 KW FALSE
MW-11 97 PL FALSE
MW-2 85 KW FALSE
MW-3 89 KW FALSE
MW-7 94 PL FALSE
MW-8 95 PL FALSE
MW-13 92 PL FALSE
MW-12 83 KW FALSE
Arsenic MW-10 89 KW FALSE
MW-10A 89 KW FALSE
MW-11 89 KW FALSE
MW-11A 92 PL FALSE
MW-2 91 PL FALSE
MW-3 89 KW FALSE
MW-7 92 PL FALSE
MW-8 92 PL FALSE
MW-13 92 PL FALSE
Barium MW-2 42 KW FALSE
MW-3 37 KW FALSE
MW-7 47 KW FALSE
MW-8 45 KW FALSE
MW-10 37 KW FALSE
MW-10A 45 KW FALSE
MW-11 45 KW FALSE
MW-11A 45 KW FALSE
MW-13 0 PA FALSE
MW-12 0 PA FALSE
Beryllium MW-2 79 KW FALSE
MW-3 95 PL FALSE
MW-7 97 PL FALSE
MW-8 87 KW FALSE
MW-10 84 KW FALSE
MW-10A 92 PL FALSE
MW-11 76 KW FALSE
MW-11A 97 PL FALSE
MW-13 67 KW FALSE
Comments
Table 6
May 2017 - Statistical Analysis
Mecklenburg County Highway 521 Landfill "Foxhole"
Permit # 60-19
S&ME Project No. 1356-07-003
Parameter Well ID Percent
Non-Detect
Statistical
Analysis
Method
SSI
Page 1 of 4
Comments
Table 6
May 2017 - Statistical Analysis
Mecklenburg County Highway 521 Landfill "Foxhole"
Permit # 60-19
S&ME Project No. 1356-07-003
Parameter Well ID Percent
Non-Detect
Statistical
Analysis
Method
SSI
Cadmium MW-10 95 PL FALSE
MW-10A 92 PL FALSE
MW-11 92 PL FALSE
MW-11A 92 PL FALSE
MW-2 82 KW FALSE
MW-3 95 PL FALSE
MW-7 89 KW FALSE
MW-8 97 PL FALSE
MW-12 83 KW FALSE
Chromium MW-2 55 KW FALSE
MW-3 47 KW FALSE
MW-7 81 KW FALSE
MW-8 97 PL FALSE
MW-10 45 KW FALSE
MW-10A 5 PA FALSE
MW-11 76 KW FALSE
MW-11A 42 KW FALSE
MW-13 33 KW FALSE
MW-12 0 PA FALSE
Cobalt MW-10 95 PL FALSE
MW-10A 97 PL FALSE
MW-11 87 KW FALSE
MW-11A 97 PL FALSE
MW-2 6 PA FALSE
MW-8 97 PL FALSE
MW-13 42 KW FALSE
MW-12 67 KW FALSE
Copper MW-10 74 KW FALSE
MW-10A 47 KW FALSE
MW-11 92 PL FALSE
MW-11A 84 KW FALSE
MW-2 42 KW FALSE
MW-3 89 KW FALSE
MW-7 92 PL FALSE
MW-8 89 KW FALSE
MW-13 67 KW FALSE
MW-12 83 KW FALSE
Page 2 of 4
Comments
Table 6
May 2017 - Statistical Analysis
Mecklenburg County Highway 521 Landfill "Foxhole"
Permit # 60-19
S&ME Project No. 1356-07-003
Parameter Well ID Percent
Non-Detect
Statistical
Analysis
Method
SSI
Lead MW-10 97 PL FALSE
MW-11 97 PL FALSE
MW-11A 97 PL FALSE
MW-2 82 KW FALSE
MW-3 95 PL FALSE
MW-7 97 PL FALSE
MW-8 97 PL FALSE
MW-13 75 KW FALSE
MW-12 92 PL FALSE
Nickel MW-10 87 KW FALSE
MW-10A 92 PL FALSE
MW-11 84 KW FALSE
MW-11A 92 PL FALSE
MW-2 48 KW FALSE
MW-3 95 PL FALSE
MW-7 94 PL FALSE
MW-8 97 PL FALSE
MW-13 83 KW FALSE
MW-12 0 PA FALSE
Selenium MW-10 97 PL FALSE
MW-10A 97 PL FALSE
MW-11 95 PL FALSE
MW-11A 97 PL FALSE
MW-2 97 PL FALSE
MW-3 97 PL FALSE
MW-7 94 PL FALSE
MW-8 97 PL FALSE
MW-13 92 PL FALSE
Thallium MW-10A 95 PL FALSE
MW-11 95 PL FALSE
MW-11A 95 PL FALSE
MW-2 88 KW FALSE
MW-3 97 PL FALSE
MW-8 97 PL FALSE
MW-13 92 PL FALSE
Vanadium MW-2 64 KW FALSE
MW-3 45 KW FALSE
MW-7 94 PL FALSE
MW-8 95 PL FALSE
MW-10 45 KW FALSE
MW-10A 37 KW FALSE
MW-11 74 KW FALSE
MW-11A 45 KW FALSE
MW-13 8 PA FALSE
MW-12 0 PA FALSE
Page 3 of 4
Comments
Table 6
May 2017 - Statistical Analysis
Mecklenburg County Highway 521 Landfill "Foxhole"
Permit # 60-19
S&ME Project No. 1356-07-003
Parameter Well ID Percent
Non-Detect
Statistical
Analysis
Method
SSI
Zinc MW-10 79 KW FALSE
MW-10A 79 KW FALSE
MW-11 76 KW FALSE
MW-11A 92 PL FALSE
MW-2 48 KW FALSE
MW-3 95 PL FALSE
MW-7 94 PL FALSE
MW-8 95 PL FALSE
MW-13 17 KW FALSE
MW-12 50 KW FALSE
Notes:
(1)SSI = Statistically Significant Increase
(2)PA = One Way Parametric Analysis of Variance (Parametric ANOVA)
Parametric ANOVA analysis is recommended by the 1992 guidance document for
parameters with fewer than 15% non-detects in a specific well.
(3)KW = Kruskal Wallis Non-Parametric Rank Analysis
Kruskal-Wallis method is recommended by the 1992 guidance document for parameters
that have 15% to 90% non-detects in a specific well.
(4)PL = Non-Parametric Inter-Well Prediction Limit Analysis
Prediction limit was used for parameters with greater than 90% non-detects in a specific well.
The 1992 guidance document recommends this method when a significant portion of the
samples are non-detect.
Page 4 of 4
Appendix III – Well Sampling Logs and Laboratory
Reports
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
LIFT STATION SAMPLING LOG
S&ME PROJECT:1356-07-003
DATE:
PERSONNEL:SJT/NGS
LIFT STATION
Field Readings
pH
Conductivity (mS/sec)
Temperature (°C)
Parameters #Containers
BOD+Ammonia as N 1 1 Liter Plastic
TSS 1 1 Liter Plastic
COD 1 250 mL Plastic + H2SO4
App I metals +Mo+Hg 1 250 mL Plastic + HNO3
Cyanide 1 250 mL Plastic + NaOH
TTO 2 1 Liter Amber Glass
VOC 624 3 40 mL Glass Vial + HCl
Trip Blank 3 40 mL Glass Vial + HCl
Sample Time:
Laboratory:
21.3
0930
ENCO
5/10/2017
7.48
2637
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
SURFACE WATER SAMPLING LOG
S&ME PROJECT:1356-07-003
DATE:
PERSONNEL:
SURFACE WATER
Sample Time Observations
SW-1 0900 none/clear 5/10/2017
SW-2 1215 none/clear 5/9/2017
5/9/2017
SJT/NGS
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:51 ft Purge Pressure:20 psi
Initial Depth to Water (DTW) from Hinge:35.78 ft Refill Time 11.8 sec
Water Column:15.2 ft Discharge Time:5.8 sec
Well Diameter:2.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:28.5 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =4 liters
liters/3.785 =1.06 gallons
Field Readings 1 2 3
pH 8.41 7.27 6.24
Conductivity (mS/sec)108 64 54
Temperature (°C)17.5 17.6 17.5
Turbidity (NTUs)21.83 22.46 28.62
Volume (liters)5 6 7
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Dissolved Metals
Sample Time:
Laboratory:
Shipping Date:5/10/2017
ENCO
0845
MW-1R
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:~37.6 ft Purge Pressure:psi
Initial Depth to Water (DTW) from Hinge:32.00 ft Refill Time sec
Water Column:5.6 ft Discharge Time:sec
Well Diameter:2.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:23.1 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =4 liters
liters/3.785 =1.06 gallons
Field Readings 1 2 3
pH 6.40 5.93 5.80
Conductivity (mS/sec)43 37 37
Temperature (°C)17.9 17.0 17.3
Turbidity (NTUs)76.10 264.40 176.40
Volume (liters)5 6 7
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Dissolved Metals
Sample Time:
Laboratory:
Shipping Date:
1415
ENCO
5/10/2017
MW-2R
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:27.6 ft Purge Pressure:15 psi
Initial Depth to Water (DTW) from Hinge:18.72 ft Refill Time 11.5 sec
Water Column:8.9 ft Discharge Time:5.3 sec
Well Diameter:4.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:22.6 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =8 liters
liters/3.785 =2.11 gallons
Field Readings 1 2 3
pH 6.46 6.54 6.57
Conductivity (mS/sec)80 70 59
Temperature (°C)16.0 15.9 15.8
Turbidity (NTUs)0.78 0.62 2.35
Volume (liters)9 10 11
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Sample Time:
Laboratory:
Shipping Date:
0920
ENCO
5/10/2017
MW-3
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:28 ft Purge Pressure:18 psi
Initial Depth to Water (DTW) from Hinge:23.31 ft Refill Time 10 sec
Water Column:4.7 ft Discharge Time:3.4 sec
Well Diameter:4.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:23.0 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =8 liters
liters/3.785 =2.11 gallons
Field Readings 1 2 3
pH 6.40 6.45 6.34
Conductivity (mS/sec)111 68 66
Temperature (°C)16.2 15.9 15.8
Turbidity (NTUs)0.08 1.33 0.28
Volume (liters)9 10 11
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Sample Time:
Laboratory:
Shipping Date:
1010
ENCO
5/10/2017
MW-7
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:27.8 ft Purge Pressure:15 psi
Initial Depth to Water (DTW) from Hinge:18.91 ft Refill Time 12 sec
Water Column:8.89 ft Discharge Time:5.8 sec
Well Diameter:4.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:22.8 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =8 liters
liters/3.785 =2.11 gallons
Field Readings 1 2 3
pH 6.00 5.87 5.81
Conductivity (mS/sec)72 68 63
Temperature (°C)15.9 15.6 15.6
Turbidity (NTUs)0.58 0.29 0.56
Volume (liters)9 10 11
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Sample Time:
Laboratory:
Shipping Date:
1040
ENCO
5/10/2017
MW-8
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:42.3 ft Purge Pressure:35 psi
Initial Depth to Water (DTW) from Hinge:33.26 ft Refill Time 12 sec
Water Column:9.0 ft Discharge Time:5.8 sec
Well Diameter:2.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:37.3 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =4 liters
liters/3.785 =1.05 gallons
Field Readings 1 2 3
pH 6.30 6.36 6.31
Conductivity (mS/sec)67 58 56
Temperature (°C)18.3 17.9 17.6
Turbidity (NTUs)6.27 5.91 8.13
Volume (liters)5 6 7
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Sample Time:
Laboratory:
Shipping Date:
1125
ENCO
5/10/2017
MW-10
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:61.5 ft Purge Pressure:30 psi
Initial Depth to Water (DTW) from Hinge:33.77 ft Refill Time 17 sec
Water Column:27.7 ft Discharge Time:5 sec
Well Diameter:2.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:56.0 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =4 liters
liters/3.785 =1.05 gallons
Field Readings 1 2 3
pH 10.39 11.13 11.16
Conductivity (mS/sec)183 218 215
Temperature (°C)18.0 17.8 17.7
Turbidity (NTUs)8.32 10.84 6.58 4.96 <--Took 4th reading to determine if
Volume (liters)5 6 7 dissolved metals necessary
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Sample Time:
Laboratory:
Shipping Date:
1145
ENCO
5/10/2017
MW-10A
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:24.7 ft Purge Pressure:15 psi
Initial Depth to Water (DTW) from Hinge:10.71 ft Refill Time 12.3 sec
Water Column:14.0 ft Discharge Time:6.1 sec
Well Diameter:4.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:19.7 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =8 liters
liters/3.785 =2.11 gallons
Field Readings 1 2 3
pH 6.69 6.24 6.13
Conductivity (mS/sec)290 289 288
Temperature (°C)17.5 16.4 16.2
Turbidity (NTUs)1.80 1.09 1.43
Volume (liters)9 10 11
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Sample Time:
Laboratory:
Shipping Date:
1240
ENCO
5/10/2017
MW-11
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:47.4 ft Purge Pressure:25 psi
Initial Depth to Water (DTW) from Hinge:11.21 ft Refill Time 12 sec
Water Column:36.2 ft Discharge Time:5.5 sec
Well Diameter:4.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:41.9 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =9 liters
liters/3.785 =2.38 gallons
Field Readings 1 2 3
pH 8.37 8.20 7.53
Conductivity (mS/sec)224 206 212
Temperature (°C)18.4 17.8 17.4
Turbidity (NTUs)2.11 1.36 1.05
Volume (liters)10 11 12
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Sample Time:
Laboratory:
Shipping Date:
1225
ENCO
5/10/2017
MW-11A
First Semi-Annual Sampling Event 2017
SJT/NGS Sunny
5/9/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:34.14 ft Purge Pressure:20 psi
Initial Depth to Water (DTW) from Hinge:21.39 ft Refill Time 12 sec
Water Column:12.8 ft Discharge Time:6.2 sec
Well Diameter:2.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:29.1 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =4 liters
liters/3.785 =1 gallons
Field Readings 1 2 3
pH 6.79 6.75 6.68
Conductivity (mS/sec)92 88 84
Temperature (°C)19.4 17.7 18.7
Turbidity (NTUs)9.20 20.08 19.40
Volume (liters)5 6 7
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Dissolved Metals
Sample Time:
Laboratory:
Shipping Date:
MW-12
5/9/2017
SJT/NGS Sunny
First Semi-Annual Sampling Event 2017
1345
ENCO
5/10/2017
HIGHWAY 521 LANDFILL ("THE FOXHOLE")
MECKLENBURG COUNTY, NORTH CAROLINA
MONITOR WELL SAMPLING LOG
S&ME PROJECT:1356-07-003
WELL ID:
DATE:
PERSONNEL:WEATHER:
REASON FOR SAMPLING:
Total Well Depth from Hinge:42.3 ft Purge Pressure:25 psi
Initial Depth to Water (DTW) from Hinge:ft Refill Time 12 sec
Water Column:ft Discharge Time:5 sec
Well Diameter:2.0 in Purge Cycle Volume:100 ml
Well Casing and Sand Pack volume per foot of water in screen interval
For 4-inch diameter wells =1.74 gallons 6.60 liters
For 2-inch diameter wells =0.45 gallons 1.70 liters
Depth to Pump from Hinge:37.3 ft
Pump and Tubing Volume (liters) =0.4 (pump volume) + depth to pump (ft) * .039
Well Wizard Pump & Tubing Volume + 1 foot of water column =4 liters
liters/3.785 =1 gallons
Field Readings 1 2 3
pH 6.95 7.00 6.80
Conductivity (mS/sec)72 56 55
Temperature (°C)17.2 16.2 15.9
Turbidity (NTUs)13.31 19.71 21.34
Volume (liters)5 6 7
Parameters #Containers
Appendix I VOCs 3 40-ml HCL preserved glass Vials
Appendix I Metals 1 250-ml HNO3 preserved plastic bottle
Dissolved Metals
Sample Time:
Laboratory:
Shipping Date:
MW-13
5/9/2017
SJT/NGS Sunny
First Semi-Annual Sampling Event 2017
1310
ENCO
5/10/2017
Appendix IV – Statistical Analysis Procedure Sheets
Appendix V – Lift Station Laboratory Report