9222_SouthWakeMSWLF_20151124_GWMReport_DIN25866

SECOND SEMI-ANNUAL 2015
SAMPLING EVENT
South Wake MSW Landfill, Permit No. 92-22
Wake County, North Carolina

Submitted To:
Wake County Disposal, LLC 3301 Benson Drive, Suite 501
Raleigh, North Carolina 27609

Submitted By: Golder Associates NC, Inc.
5B Oak Branch Drive
Greensboro, NC 27407 USA

November 2015 0739-603915.100

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Ms. Jaclynne Drummond, Hydrogeologist November 24, 2015
NCDENR Solid Waste Section 2 Project No. 073-9603915.100

C: Elliott Cornell, Wake County Solid Waste Management Division, P.O. Box 550 Raleigh, North
Carolina 27602, [e-mail], 919-291-4669 Troy Mitchell, Landfill Manager, South Wake Landfill, Waste Industries USA, Inc., 6140 Old
Smithfield Road, Apex, NC 27539, [e-mail], 919-877-2235. David Pepper, Director of Capital Projects, Waste Industries USA, Inc., 3301 Benson Drive, Suite
601, Raleigh, NC 27609, [e-mail], 910-520-1002 (electronic copy)
Ben Habets, Waste Industries USA, Inc., 3301 Benson Drive, Suite 601, Raleigh, NC 27609, [e-mail] (electronic copy)
G:\Projects\Waste Industries\South Wake\Groundwater\GWMR\Sept 2015\Final\Final South Wake 2nd Semi-Annual 2015 GW Event.docx
Novber 2015 i 073-9603915.100

Table of Contents
COVER LETTER
1.0 INTRODUCTION .............................................................................................................................. 1
1.1 Site Description and Background ................................................................................................. 1
1.2 Compliance Monitoring History .................................................................................................... 1
1.3 Hydrogeologic Setting .................................................................................................................. 2
2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION ............................................... 3
2.1 Visual Inspection Program ........................................................................................................... 3
2.2 Well Network and Groundwater Elevation Measurements .......................................................... 3
2.3 September 2015 Groundwater Monitoring Event......................................................................... 4
2.4 Laboratory Analysis Program ....................................................................................................... 5
2.5 September 2015 Sampling Results ............................................................................................. 5
3.0 LABORATORY AND FIELD QA/QC ................................................................................................ 6
4.0 DATA EVALUATION ........................................................................................................................ 6
4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons ....................... 6
4.2 Statistical Evaluations .................................................................................................................. 7
5.0 SUMMARY ....................................................................................................................................... 7
6.0 REFERENCES ................................................................................................................................. 7

List of Tables
Table 1 Summary of Historical Groundwater Elevation Data Table 2 Summary of Estimated Horizontal Flow Velocities
Table 3 Summary of Well Construction Information Table 4 Summary of Groundwater Monitoring Results
Table 5 Summary of Groundwater Field Parameters Table 6 Summary of Surface Water Monitoring Results
Table 7 Summary of Surface Water Field Parameters Table 8 Summary of Leachate Monitoring Results

List of Drawings
Drawing 1 Groundwater Surface Contour Map, September 29, 2015
Drawing 2 Surface Water Location Map
List of Appendices
Appendix A Groundwater and Surface Water Sampling Logs
Appendix B September 2015 Groundwater, Surface Water, and Leachate Certificates-of-Analysis, Chain-of-Custody Forms and Laboratory Data Reviews
Appendix C Statistical Evaluation Worksheets and Summary Table

November 2015 1 073-9603915.100

1.0 INTRODUCTION
This report summarizes the monitoring results from the September 29 - 30, 2015, groundwater and
surface water sampling event, and the October 5, 2015, leachate sampling event at the active South
Wake Municipal Solid Waste (MSW) Landfill in Wake County, North Carolina. Water quality monitoring is
performed in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter
13B.1633. The facility is owned by Wake County and operated by Wake County Disposal, LLC, a
subsidiary of Waste Industries USA, Inc., under Permit No. 92-22 issued by the North Carolina (NC)
Department of Environment and Natural Resources (DENR).
1.1 Site Description and Background
The location of the facility is shown on the inlay on Drawing 1. The South Wake MSW Landfill is located
approximately 4 miles south of Apex, NC in Wake County. Access to the site is from NC Highway 55
Bypass, east of the site.
The Little Branch Creek is located along the southern property boundary and flows to the west, eventually
into the Shearon Harris Reservoir. The location of this surface water feature is shown on Drawing 1 and
Drawing 2.
Based on the topography as shown on Drawing 1, topographic surface elevations at the facility range
from approximately 260 feet above mean sea level (AMSL) along the drainages south and northwest of
the facility, to nearly 375 feet AMSL in the northeastern portion of the future footprint. The site is
surrounded predominantly by undeveloped, wooded properties, other landfills, and rural residential
properties.
The closed Feltonsville MSW Landfill, Permit 92-03, is located west of the active South Wake facility and
is maintained by Wake County. The active Highway 55 C&D Landfill, Permit 92-30, is operated by Griffin
Brothers Companies and is located north of the facility.
1.2 Compliance Monitoring History
Between September and November 2007, thirteen monitoring wells (MW-1, MW-1A, MW-2, MW-2A,
MW-3, MW-3A, MW-4, MW-5, MW-6, MW-6A, MW-7, MW-8 and MW-8A) were installed at the South
Wake facility to monitor groundwater quality beneath the facility. Background groundwater and surface
water monitoring at the facility was initiated in December 2007. Prior to the September 2013 event, the
facility’s Water Quality Monitoring Plan (WQMP) was revised to remove six existing monitoring wells from
the compliance monitoring network (MW-1A, MW-2A, MW-3A, MW-6, MW-6A, and MW-8A). Wells MW-6
and MW-6A were decommissioned and MW-1A, MW-2A, MW-3A, and MW-8A are monitored for water
levels only. As part of the revised WQMP, one of the Phase 2 expansion wells (MW-9) was also added to
the network; two additional future monitoring wells will be installed after excavation of the Phase 2 area.
The facility’s revised monitoring network consists of one upgradient well (MW-1) and seven downgradient
November 2015 2 073-9603915.100

wells (MW-2, MW-3, MW-4, MW-5, MW-7, MW-8, and MW-9) which monitor the uppermost aquifer
beneath the facility.
The facility’s monitoring network also includes five surface water sampling points: SW-1, SW-2, SW-3,
SW-4, and SW-5. The facility’s upstream sampling points consist of SW-1, SW-2, and SW-4. Surface
water sampling point SW-1 is located along a tributary to Little Branch north of the facility. Upstream
monitoring point SW-2 is located along another unnamed tributary to Little Branch northeast of the facility.
The third upstream point, SW-4, is located east of the facility along another unnamed tributary to Little
Branch. Surface water point SW-3 is located downstream and west of the MSW disposal area along an
unnamed tributary to Little Branch. Surface water point SW-5 is a second downstream sampling location
located west of the facility in Little Branch. Surface points are sampled in conjunction with the
groundwater monitoring wells in accordance with the facility’s permit and WQMP. Surface water
monitoring points SW-1, SW-2, and SW-3 are shared with the adjacent unlined, closed Feltonsville MSW
Landfill.
1.3 Hydrogeological Setting
Geologically, the facility is located within the Deep River basin and Durham sub-basin, which are Triassic
basins in the Piedmont Physiographic Province of North Carolina (NCGS, 1985). Generally, the Triassic
basin consists of Lower Mesozoic sedimentary and igneous rocks that filled rift basins. The Durham sub-
basin contains conglomerates, fanglomerates, sandstones, and mudstones. More specifically, all three
Deep River sub-basins contain a middle clay-shale and mudstone interval approximately 50 to 400
meters thick, which is evident by the red clay present at the site, in addition to the presence of
conglomerates and sandstones. The Deep River basin is bounded on the east by the Jonesboro fault
system and is intruded by intersecting north- and northwest-striking diabase dikes (Olsen, et al. 1991).
A diabase dike was identified within the facility boundaries during a magnetic survey performed during the
initial site investigation. The dike is steeply dipping and trends approximately N 45˚ E. The dike
bifurcates toward the southeastern portion of the facility property boundary. The dike does not intersect
the Phase I disposal area (CDM, 1998).
The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of
regolith, partially weathered rock, and conglomerate bedrock. Groundwater occurs at depths varying
widely from approximately 3 feet below grade to more than 35 feet below grade across the site.
Surface water and groundwater at the site generally flows to the south and west toward Little Branch
located along the southern property boundary. The Little Branch flows south to southwest and drains into
Big Branch, which drains into White Oak Creek. This creek then flows into the Shearon Harris Reservoir,
located approximately eight miles southwest of the facility.
November 2015 3 073-9603915.100

Based on the September 29, 2015, groundwater surface contour map, the average hydraulic gradient in
the shallow aquifer underlying the site, as measured along the conceptual flow path shown on the contour
map, was calculated to be 0.032 feet/foot. Groundwater velocities were calculated using a hydraulic
conductivity of 3.77E-6 centimeters per second, which is the geometric mean of the hydraulic
conductivities calculated for the monitoring wells at the facility (Golder, December 2007). The estimated
effective porosity of the shallow aquifer is based on the most conservative value for the available effective
porosities of the hydrogeologic units, which is 0.22 (Golder, 2007).
Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the
facility was calculated using the following modified Darcy equation:
Vgw = Ki/ne
where Vgw = average linear velocity (feet per year), K = hydraulic conductivity (feet per year), i =
horizontal hydraulic gradient, and ne = effective porosity.
The average estimated linear groundwater flow velocity under the waste management unit is
approximately 0.56 feet/year toward the southwest or northwest (Table 2). The linear velocity equation
above makes the simplified assumptions of a homogeneous and isotropic aquifer. Therefore, this
equation represents a likely average value for the uppermost aquifer and does not account for
heterogeneous and/or anisotropic conditions that may be present in the uppermost aquifer at the facility.
2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION
Field activities conducted as part of the September 2015 sampling event are discussed in the following
sections.
2.1 Visual Inspection Program
In order to ensure that a potential release is detected at the earliest possible time, the visual inspection
program is used at the South Wake MSW Landfill by the sampling crew. This program includes physical
indicators such as potential water table mounding beneath the waste management unit, physical
examination of any stresses in biological communities, visible signs of leachate migration (i.e., leachate
seeps), unexplained changes in soil characteristics, and any other change to the environment due to the
waste management unit. During the September 2015 compliance monitoring event, no physical
indicators of a potential release were observed in the vicinity of the waste management areas by the
sampling personnel.
2.2 Well Network and Groundwater Elevation Measurements
The current network of groundwater monitoring wells at the facility consists of eight wells. Available
monitoring well construction information for all site monitoring wells is summarized in Table 3, and the
well locations are shown on Drawing 1. The well locations were selected to yield groundwater samples
November 2015 4 073-9603915.100

representative of the conditions in the uppermost aquifer underlying the facility, and to monitor for
potential releases from the landfill unit. Three upstream surface water monitoring points (SW-1, SW-2,
and SW-4) and two downstream surface water monitoring points (SW-3 and SW-5) are also monitored.
Surface water monitoring points SW-1, SW-2, and SW-3 are shared with the adjacent unlined, closed
Feltonsville MSW Landfill.
Depth-to-water measurements are recorded to the nearest 0.01 foot prior to initiating groundwater purging
and sampling activities. The respective groundwater level elevations for this event are presented in
Table 1. The historical water level data are also shown on this table.
As presented, recent groundwater elevation data for the monitoring well network indicates that the
hydraulic head level in the uppermost aquifer beneath the facility is fairly consistent, with temporal
variation with the long-term average limited to approximately 10 feet (plus or minus) under normal
conditions. The range in fluctuation in the uppermost aquifer appears to be greatest in upgradient
background well MW-1, which is located in a groundwater recharge area, and downgradient wells MW-2
and MW-8A, which have shown large fluctuations between events. Overall, the range in fluctuation in the
downgradient compliance wells, which are located near groundwater discharge areas, is less, presumably
due to the stabilizing effect of the hydraulic discharge boundary.
2.3 September 2015 Groundwater Monitoring Event
Golder personnel visited the facility on September 29-30, 2015, to purge and sample monitoring wells
MW-1, MW-2, MW-3, MW-4, MW-5, MW-7, MW-8, and MW-9, and to sample surface water monitoring
points SW-1, SW-2, SW-3, SW-4, and SW-5. The facility’s leachate was sampled on October 5, 2015, by
Environmental Conservation Laboratories (ENCO).
Depth-to-water measurements were obtained from the network monitoring wells to the nearest 0.01 foot
using an electronic water level indicator prior to purging the wells. The respective groundwater level
elevations for this event are presented in Table 1 along with the historical water level data.
The monitoring wells were purged using dedicated bladder pumps. Measurements of pH, specific
conductivity, temperature, turbidity, dissolved oxygen, and oxidation reduction potential were recorded on
approximately 3- to 5-minute intervals, depending on the purge rate. In general, the purge rate for each
well was matched to the yield of the monitoring well, as determined by continuously monitoring the depth
to groundwater, up to a maximum purge rate of 500 milliliters per minute. Purging was continued until
stabilization was indicated by the water quality parameters.
Prior to sampling, the laboratory-supplied sample containers were prepared. Each sample container was
labeled with the sample identification number, sampling personnel, date and time of sample collection,
project name and number, and requested chemical analyses.
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The groundwater samples were collected directly from the dedicated bladder pump discharge lines in the
labeled, laboratory-supplied, pre-preserved sample containers after purging was completed based on
stabilization of all water quality parameters. After collection, the samples were placed in a cooler on ice,
under chain-of-custody control. Copies of the sampling logs are presented in Appendix A. Included in
each log is a description of the sampling equipment, sampling method, field observations, well location,
and water quality measurements.
The surface water samples were either collected directly from the stream, by lowering the sample
containers into the stream flow with the opening facing into the current flow or by using a decontaminated
polyethylene dipper, taking care to prevent the overflow of the sample containers and to minimize sample-
induced turbidity. Measurements of pH, specific conductivity, temperature, turbidity, dissolved oxygen,
and oxygen reduction potential were measured directly from the stream and recorded during the
collection of the surface water samples.
The leachate sample was collected by ENCO personnel on October 5, 2015, directly from the influent
leachate piping manifold that serves the leachate holding tank. After collection, the surface water and
leachate samples were placed in their respective coolers on ice, under chain-of-custody control. Copies
of the sampling logs are presented in Appendix A. Included in each log is a description of the sampling
equipment, sampling location, sampling method, field observations, and water quality measurements.
2.4 Laboratory Analysis Program
The September 2015 groundwater, surface water, and leachate samples were submitted to ENCO of
Cary, North Carolina under chain-of-custody control for analysis. As presented, groundwater and surface
water samples at the facility were analyzed for NC Appendix I constituents. The leachate samples were
analyzed for the DENR approved list of constituents for Subtitle D facilities. The groundwater and surface
water samples were received at the laboratory in good condition on September 30, 2015, and properly
preserved. The leachate sample was collected and transported to the laboratory in good condition on
October 5, 2015, and properly preserved.
2.5 September 2015 Sampling Results
Analytical results and field parameters for the September 2015 groundwater, surface water, and leachate
samples are summarized in Tables 4 through 8 along with available historical data. The laboratory
certificates-of-analysis, chain-of-custody form, and laboratory data reviews for the sampling event are
included in Appendix B.
As presented in Table 4, seven NC Appendix I inorganic constituents (arsenic, barium, chromium, copper,
silver, nickel, and zinc) were detected above the Solid Waste Section Limits (SWSLs) in samples from
one or more downgradient monitoring wells during the September 2015 monitoring event. No NC
November 2015 6 073-9603915.100

Appendix I organic constituents were detected above the laboratory method detection limits SWSLs in
samples from downgradient monitoring wells during the event.
Zinc in the sample from upstream point SW-2 was detected at a concentration above its respective SWSL
during the September 2015 event. No other Appendix I constituents were detected above SWSLs in
surface water monitoring points during this event. Also, leachate results were generally consistent with
available historical data for this facility.
3.0 LABORATORY AND FIELD QA/QC
A field blank was collected by Golder personnel as part of the September 2015 groundwater and surface
water sampling event. In addition to the field blank, a laboratory-prepared trip blank accompanied the
volatile sample containers to and from the laboratory. ENCO analyzed the field blank for NC Appendix I
constituents and the trip blank for NC Appendix I volatile organic compounds. Reviews of the laboratory
data were performed by Golder personnel and are included in Appendix B. During the September 2015
event, no NC Appendix I constituents were detected in the field blank. Antimony was detected in the
method blank for this event. Based on Golder’s laboratory data review, the detection of antimony at
MW-1 is considered blank-qualified.
4.0 DATA EVALUATION
The results of the data evaluations are presented in the following sections.
4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons
As presented in Table 4, constituent (arsenic in the sample from downgradient well MW-4, barium in the
sample from upgradient well MW-1, and chromium in the samples from upgradient well MW-1 and
downgradient well MW-2) were reported at concentrations that exceeded groundwater quality standards
and SWSLs during this event. As shown below, the chromium arsenic concentrations were statistically
determined to be below background concentrations and no further action is warranted.

Antimony was detected below the SWSL but above the GWPS in the sample from MW-7. Cobalt was
detected at an estimated concentration below the SWSL but above the SWS GPS in the samples from
MW-2 and MW-5. Vanadium was detected at estimated concentrations below the SWSL above the SWS
GPS in the samples from downgradient wells MW-2, MW-3, MW-4, MW-5, MW-8 and MW-9. No further
action is warranted since concentrations are estimated below the SWSLs.

No other NC Appendix I organic constituents were detected above the SWSLs and groundwater
standards during the September 2015 event. There were no detections of NC Appendix I constituents
detected above both the SWSLs and surface water standards during this event.
November 2015 7 073-9603915.100

4.2 Statistical Evaluations
As presented in Table 4, chromium was detected in the sample from MW-2 and arsenic was detected in
the sample from MW-4 at concentrations above their SWSLs and groundwater standards during this
sampling event. In order to determine the source of these above-standard concentrations at
downgradient wells, statistical analyses were performed as allowed by 15A NCAC 13B.1632 (g) and (h).
The concentrations of arsenic and chromium were statistically evaluated to determine if the reported
concentrations exceeded the facility background concentrations. The summary of statistical analysis and
statistical worksheets are presented as Appendix C. Based on statistical evaluations, the concentrations
of arsenic and chromium were determined be statistically below background and appear to be naturally
occurring; no further action is warranted.
5.0 SUMMARY
During this sampling event, two NC Appendix I inorganic constituents (chromium in the sample from
MW-2 and arsenic in the sample from MW-4) were detected at quantifiable concentrations above the
applicable water quality standard. Based on statistical analysis, the arsenic and chromium concentrations
were determined to be below background; therefore, no further action is required at this time. There were
also no exceedances of surface water standards during this event.
Based on the results summarized herein, Wake County Disposal, LLC is in compliance with respect to
water quality monitoring requirements and will continue monitoring the uppermost aquifer beneath this
facility in accordance with the requirements of the Detection Monitoring Program as outlined in Title 15A
NCAC 13B.1633. The next groundwater monitoring event is tentatively scheduled for April 2016.
6.0 REFERENCES
Camp Dresser & McKee (CDM), January 1998 Revision, Water Quality Monitoring Plan (WQMP) and
Design Hydrogeological Report, South Wake Landfill.
Camp Dresser & McKee (CDM), July 2008, May 2008 Semi-Annual Monitoring Sampling Report,
Feltonsville Landfill – Wake County.
Golder Associates NC, Inc., (Golder) December 2007, Monitoring Well and Gas Probe Installation Report,
South Wake Municipal Solid Waste Landfill, Permit 92-22.
NCGS (North Carolina Geologic Survey), 1985, Geologic Map of North Carolina.
Olsen et al. (Olsen, Paul E., Froelich, Albert J., Daniels, David L., Smoot, Joseph P., Gore, Pamela J.W.),
Rift Basins of Early Mesozoic Age, in Horton, J.W., Jr., and Zullo, V.A., eds., The Geology of the
Carolinas: The University of Tennessee Press, 1991, pp. 142-170.
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TABLES
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TOC Elevation
(ft AMSL)
Date GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW12/5/2007 337.49 26.10 261.17 101.84 296.73 17.82 284.38 30.48 289.42 22.21 269.59 40.70 307.99 17.84 318.03 18.92 274.64 7.33 274.89 8.51 264.82 18.41 ----2/19/2008 341.36 22.23 269.61 93.40 298.23 16.32 284.71 30.15 290.97 20.66 272.27 38.02 308.15 17.68 319.03 17.92 275.58 6.39 275.75 7.65 275.92 7.31 ----
4/9/2008 342.75 20.84 279.41 83.60 305.30 9.25 285.50 29.36 293.32 18.31 273.05 37.24 308.84 16.99 319.87 17.08 275.73 6.24 276.45 6.95 276.97 6.26 ----
6/24/2008 343.34 20.25 292.80 70.21 300.44 14.11 284.35 30.51 292.01 19.62 270.49 39.80 308.18 17.65 319.74 17.21 274.81 7.16 275.27 8.13 275.61 7.62 ----10/20/2008 343.49 20.10 305.79 57.22 299.23 15.32 284.01 30.85 291.74 19.89 272.14 38.15 306.75 19.08 318.30 18.65 274.69 7.28 275.40 8.00 275.35 7.88 ----3/31/2009 343.41 20.18 359.56 3.45 307.10 7.45 285.81 29.05 295.54 16.09 274.73 35.56 308.12 17.71 320.90 16.05 275.53 6.44 276.69 6.71 276.99 6.24 ----9/30/2009 343.88 19.71 352.77 10.24 300.55 14.00 284.15 30.71 292.46 19.17 271.09 39.20 306.92 18.91 319.41 17.54 274.26 7.71 275.18 8.22 274.83 8.40 ----
3/31/2010 343.51 20.08 358.92 4.09 300.12 14.43 285.22 29.64 294.01 17.62 274.58 35.71 308.99 16.84 322.88 14.07 274.48 7.49 276.12 7.28 275.18 8.05 ----10/6/2010 343.84 19.75 355.01 8.00 296.99 17.56 283.45 31.41 293.58 18.05 272.99 37.30 307.55 18.28 320.64 16.31 273.92 8.05 275.69 7.71 274.37 8.86 ----4/7/2011 342.73 20.86 357.84 5.17 295.00 19.55 283.75 31.11 292.12 19.51 273.77 36.52 306.53 19.30 320.65 16.30 274.72 7.25 276.10 7.30 275.29 7.94 ----9/29/2011 343.81 19.78 355.07 7.94 295.19 19.36 283.27 31.59 292.69 18.94 272.61 37.68 306.45 19.38 318.68 18.27 274.66 7.31 275.96 7.44 274.78 8.45 ----
3/29/2012 343.17 20.42 357.82 5.19 296.53 18.02 284.96 29.90 293.83 17.80 274.49 35.80 307.64 18.19 321.41 15.54 274.87 7.10 276.49 6.91 275.59 7.64 ----9/27/2012 343.66 19.93 354.99 8.02 296.19 18.36 283.50 31.36 292.45 19.18 272.69 37.60 307.34 18.49 319.35 17.60 273.03 8.94 274.69 8.71 274.18 9.05 ----4/2/2013 342.41 21.18 355.64 7.37 296.84 17.71 284.90 29.96 293.92 17.71 273.88 36.41 307.68 18.15 322.30 14.65 273.71 8.26 276.14 7.26 274.98 8.25 ----9/26/2013 343.71 19.88 355.58 7.43 297.66 16.89 284.48 30.38 293.99 17.64 273.14 37.15 309.80 16.03 323.20 13.75 273.32 8.65 275.62 7.78 274.56 8.67 281.95 10.9
1/10/2014 ----------------------------------------278.49 14.362/25/2014 ----------------------------------------285.19 7.664/2/2014 342.44 21.15 356.62 6.39 303.38 11.17 284.95 29.91 295.78 15.85 274.91 35.38 312.59 13.24 324.93 12.02 274.50 7.47 277.10 6.30 275.93 7.30 285.22 7.639/30/2014 343.18 20.41 355.02 7.99 298.19 16.36 283.15 31.71 293.71 17.92 273.24 37.05 312.93 12.90 324.44 12.51 273.36 8.61 275.83 7.57 274.58 8.65 278.22 14.63
4/1/2015 342.68 20.91 357.69 5.32 300.99 13.56 285.30 29.56 296.07 15.56 274.68 35.61 314.20 11.63 327.06 9.89 274.19 7.78 276.82 6.58 276.13 7.10 284.62 8.239/29/2015 342.97 20.62 355.08 7.93 297.63 16.92 282.36 32.50 292.87 18.76 271.69 38.60 311.67 14.16 324.20 12.75 272.87 9.10 275.02 8.38 274.23 9.00 276.87 15.98MEAN342.83 20.76 336.65 26.36 299.07 15.48 284.33 30.53 293.18 18.45 272.95 37.34 308.86 16.97 321.32 15.63 274.36 7.61 275.85 7.55 274.75 8.48 281.51 11.34
MAXIMUM 343.88 26.10 359.56 101.84 307.10 19.55 285.81 32.50 296.07 22.21 274.91 40.70 314.20 19.38 327.06 18.92 275.73 9.10 277.10 8.71 276.99 18.41 285.22 15.98
MINIMUM 337.49 19.71 261.17 3.45 295.00 7.45 282.36 29.05 289.42 15.56 269.59 35.38 306.45 11.63 318.03 9.89 272.87 6.24 274.69 6.30 264.82 6.24 276.87 7.63
Notes:GW Elev = Groundwater elevation in feet above mean sea level (AMSL)
DTW = Depth to Water (measured in feet below top of casing)
TOC = top of casingMW = monitoring well
---- = not measured or no data available
TABLE 1
Summary of Historical Groundwater Elevation DataSouth Wake Landfill, Permit No. 92-22Wake County, North Carolina
363.59 363.01
MW-1A MW-2AMW-2
314.86314.55
MW-4MW-3AMonitoring WellMW-1 MW-9MW-8AMW-8MW-7MW-3 MW-5
292.85283.23283.40281.97336.95325.83310.29311.63
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South Wake Landfill, Permit No. 92-22Wake County, North Carolina
Gradient
Calculation
Segment
Flow
Direction
Gradient
Segment Length
(feet)
Gradient
Segment Elevations
(feet)
Horizontal
Gradient
(i, feet)
Effective
Porosity
(ne)
Hydraulic
Conductivity
(K, cm/sec)
Velocity
(Vgw, feet/year)
320
290
330
280
330
280
Notes: 1. Horizontal velocities based on the modified Darcy equation Vgw = Ki/ne.
2. Values for ne were based on the most conservative value for soil samples collected from MW-2,
MW-5 and MW-6 presented in Golder's Monitoring Well Installation Report (2007).
3. Values for K were based on the geometric mean of slug test values from all site monitoring wells
presented in Golder's Monitoring Well Installation Report (2007).
0.37
i3 SW 1822 0.0274 0.22 3.77E-06 0.49
i2 SW 2409 0.0208 0.22 3.77E-06
TABLE 2
Summary of Estimated Horizontal Flow Velocities
September 2015
i1 NW 636 0.0472 0.22 3.77E-06 0.84
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Monitoring Well
Identification Northing Easting Date of
Construction
Ground Surface
Elevation (ft. AMSL)
Top-of-Casing
Elevation (ft. AMSL)
Well
Depth (feet)
Well
Diameter (inches)
Screened
Interval (ft. bgs)
Geology of
Screened Interval
Well
Status
MW-1 702673.41 2047352.63 11/19/2007 362.05 363.59 30 2 15-30 Bedrock ActiveMW-1A 702660.56 2047360.61 11/19/2007 361.09 363.01 99 2 89-99 Bedrock Water Level Only
MW-2 702160.44 2043849.59 9/20/2007 312.21 314.55 26 2 11-26 Regolith/PWR ActiveMW-2A 702149.1 2043849.33 10/4/2007 313.00 314.86 56 2 46-56 Bedrock Water Level Only
MW-3 701889.1 2043443.96 10/3/2007 309.47 311.63 36 2 21-36 PWR ActiveMW-3A 701891.17 2043457.41 10/3/2007 307.94 310.29 76 2 66-76 PWR Water Level Only
MW-4 701454.46 2043492.37 10/4/2007 323.71 325.83 33 2 18-33 Regolith/PWR ActiveMW-5 700894.27 2043468.68 9/18/2007 334.92 336.95 23 2 13-23 Regolith Active
MW-7 699968.88 2043603.01 10/4/2007 279.81 281.97 26 2 11-26 Regolith/PWR ActiveMW-8 699833.49 2043779.46 10/16/2007 281.28 283.40 27 2 8-23 Regolith/PWR Active
MW-8A 699838.47 2043783.12 10/16/2007 281.17 283.23 55 2 45-55 Bedrock Water Level OnlyMW-9 699275.90 2045188.90 2/2/2012 290.09 292.85 20 2 5-20 Regolith Active
Notes:1. ft AMSL= feet above mean sea level2. ft bgs = feet below ground surface
3. N/A = Not applicable4. MW = monitoring well5.PWR = partially weathered rock6. Survey information provided by Survey Solutions P.C. of Raleigh North Carolina.7. Monitoring wells MW-1A, MW-2A, MW-3A, and MW-8A were removed from the monitoring network per the revised 2012 WQMP and are used for water levels only.
TABLE 3
Summary of Well Construction Information
South Wake Landfill, Permit No. 92-22Wake County, North Carolina
November 2015 Page 1 of 4 Project No. 0739603915
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MW-1 MW-1A MW-2 MW-3 MW-4 MW-5 MW-7 MW-8 MW-9
Antimony ug/L 12/06/07 --6 ND dry ND ND ND ND ND ND --ND
SWS GPS = 1 ug/L ug/L 02/19/08 --6 ND ND ND ND ND ND ND ND --ND
EPA MCL = 6 ug/L ug/L 04/09/08 --6 ND ND ND ND ND ND ND ND --ND
ug/L 06/25/08 --6 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --6 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --6 ND ND ND ND ND ND ND ND --ND
ug/L 09/30/09 --6 ND 0.139 J ND ND ND ND ND 0.168 J --ND
ug/L 03/31/10 --6 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --6 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --6 ND 0.232 J ND ND ND ND ND ND --ND
ug/L 09/29/11 --6 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --6 0.461 J 0.442 J ND 0.223 J 0.840 J ND ND ND --ND
ug/L 09/27/12 --6 ND 0.650 J ND ND ND ND ND ND --ND
ug/L 04/02/13 --6 0.410 B 1.20 B ND ND ND ND ND ND --0.535 J
ug/L 09/26/13 --6 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --6 ----------------ND ND
ug/L 02/25/14 --6 ----------------ND ND
ug/L 04/02/14 --6 0.304 J --ND ND ND ND ND ND 0.563 J ND
ug/L 09/30/14 0.220 6 0.375 J --0.944 J ND ND ND ND ND ND ND
ug/L 04/01/15 0.220 6 0.359 J --ND ND ND ND ND ND ND ND
ug/L 09/30/15 0.220 6 0.703 B --ND ND ND ND 2.51 J ND ND 0.403 J
Arsenic ug/L 12/05/07 --10 ND dry 4.1 J ND ND ND ND ND --ND
NC2L = 10 ug/L ug/L 02/19/08 --10 ND ND 4.9 J ND ND ND ND ND --ND
EPA MCL = 10 ug/L ug/L 04/09/08 --10 ND ND 9.8 B ND ND ND ND ND --3.3 J
ug/L 06/24/08 --10 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --10 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --10 ND ND 4.4 J ND ND ND ND ND --ND
ug/L 09/30/09 --10 5.40 J ND 5.87 J ND 4.63 J ND ND ND --ND
(Dissolved)ug/L 09/30/09 --10 --------------------
ug/L 03/31/10 --10 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --10 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --10 ND ND 4.52 B ND 3.76 B ND 3.29 B ND --5.41 J
ug/L 09/29/11 --10 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --10 6.42 J 3.03 J ND ND 3.88 J ND ND ND --ND
ug/L 09/27/12 --10 ND ND 3.16 B ND 3.66 B 7.55 B ND ND --5.75 J
ug/L 04/02/13 --10 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --10 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --10 ----------------ND ND
ug/L 02/25/14 --10 ----------------ND ND
ug/L 04/02/14 --10 ND --5.68 J ND 6.07 J ND ND ND 6.04 J ND
ug/L 09/30/14 5.40 10 ND --ND ND ND 5.41 J ND ND ND ND
ug/L 04/01/15 6.80 10 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/15 6.80 10 ND --ND ND 10.3 8.10 J ND ND 6.90 J ND
Barium ug/L 12/05/07 --100 2060 dry 30.6 B 113 34.3 B 14.5 B 93.5 J 68.4 J --10 J
NC2L = 700 ug/L ug/L 02/19/08 --100 3350 63.1 J 38.6 J 133 31.0 J 13.7 J 64.8 J 110 --ND
EPA MCL = 2000 ug/L ug/L 04/09/08 --100 3020 1270 262 110 31.6 J 9.80 J 64.3 J 107 --0.90 J
ug/L 06/24/08 --100 2810 116 63.3 J 87.9 J 29.1 J 12.6 J 77.5 J 100 --ND
ug/L 10/20/08 --100 2770 90.0 J 39.9 J 105 28.3 J 11.4 J 82.8 J 93.5 J --ND
ug/L 03/31/09 --100 2570 533 189 54.4 J 31.5 J 8.66 J 76.5 J 104 --ND
ug/L 09/30/09 --100 2730 180 77.9 J 76.7 J 27.0 J 10.6 J 124 87.0 J --ND
ug/L 03/31/10 --100 2430 212 30.9 J 79.1 J 25.5 J 9.29 J 97.8 J 87.7 J --ND
ug/L 10/06/10 --100 2270 88.6 J 38.6 J 87.3 J 17.1 J 8.46 J 87.7 J 71.7 J --ND
ug/L 04/07/11 --100 2780 218 48.7 J 96.3 J 26.3 J 9.34 J 120 106 --ND
ug/L 09/29/11 --100 3150 114 55.9 J 111 27.0 J 12.0 J 147 129 --ND
ug/L 03/29/12 --100 2700 178 38.7 J 105 25.8 J 8.99 J 117 129 --ND
ug/L 09/27/12 --100 2550 92.1 J 35.8 J 86.7 J 22.2 J 9.85 J 116 158 --ND
ug/L 04/02/13 --100 2820 147 26.3 J 71.1 J 23.5 J 23.6 J 128 141 --1.23 J
ug/L 09/26/13 --100 2790 --33.7 J 65.4 J 20.3 J 12.9 J 113 161 99.0 J ND
ug/L 01/10/14 --100 ----------------128 ND
ug/L 02/25/14 --100 ----------------42.9 J 2.88 J
ug/L 04/02/14 --100 2690 --122 55.8 J 23.1 J 14.1 J 109 159 35.2 J ND
ug/L 09/30/14 1.00 100 2910 --54.5 J 69.0 J 25.4 J 22.3 J 122 171 92.5 J ND
ug/L 04/01/15 1.00 100 3470 --68.9 J 63.5 J 24.1 J 20.2 J 112 160 52.0 J 1.03 J
ug/L 09/30/15 1.00 100 3940 --42.1 J 77.4 J 24.3 J 20.3 J 140 185 112 ND
Beryllium ug/L 12/05/07 --1 ND dry ND ND ND ND ND ND --ND
SWS GPS = 4 ug/L ug/L 02/19/08 --1 ND ND ND ND ND ND ND ND --ND
EPA MCL = 4 ug/L ug/L 04/09/08 --1 ND ND 1.30 ND ND ND ND ND --ND
ug/L 06/24/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --1 ND ND 1.95 ND ND ND ND 0.08 J --ND
(Dissolved)ug/L 03/31/09 --1 ----1.75 --------------
ug/L 09/30/09 --1 ND ND ND ND ND 0.257 J ND ND --ND
ug/L 03/31/10 --1 ND ND ND ND ND ND ND ND --ND
(Verification)ug/L 04/20/10 --1 --------------------
ug/L 10/06/10 --1 ND ND ND 0.114 J ND 0.103 J ND ND --ND
ug/L 04/07/11 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --1 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --1 ND --0.176 J ND 0.102 J 0.147 J ND ND ND ND
ug/L 01/10/14 --1 ----------------ND ND
ug/L 02/25/14 --1 ----------------ND ND
ug/L 04/02/14 --1 ND --1.76 ND ND ND ND ND ND ND
ug/L 09/30/14 0.100 1 ND --0.274 J ND ND ND ND ND ND ND
ug/L 04/01/15 0.100 1 ND --0.614 J ND ND ND ND ND ND ND
ug/L 09/30/15 0.100 1 ND --ND ND ND ND ND ND ND ND
Cadmium ug/L 12/05/07 --1 ND dry ND ND ND ND ND ND --ND
NC2L = 2 ug/L ug/L 02/19/08 --1 ND ND ND ND ND ND ND ND --ND
EPA MCL = 5 ug/L ug/L 04/09/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 06/24/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --1 0.26 J ND 0.09 J 0.15 J ND ND 0.14 J ND --ND
ug/L 09/30/09 --1 0.481 J ND 0.386 J ND ND ND ND ND --ND
ug/L 03/31/10 --1 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --1 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --1 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --1 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --1 ----------------ND ND
ug/L 02/25/14 --1 ----------------ND ND
ug/L 04/02/14 --1 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/14 0.360 1 ND --ND ND 0.403 J ND ND ND ND ND
ug/L 04/01/15 0.360 1 ND --ND 0.526 J ND ND ND ND ND ND
ug/L 09/30/15 0.360 1 ND --ND ND ND ND ND ND ND ND
Chromium ug/L 12/05/07 --10 ND dry 153 ND ND ND ND ND --ND
NC2L = 10 ug/L ug/L 02/19/08 --10 ND ND 118 ND 14.8 ND ND ND --ND
EPA MCL = 100 ug/L ug/L 04/09/08 --10 ND 5.3 J 11.6 ND 172 ND ND ND --ND
ug/L 06/24/08 --10 ND ND 8.2 J ND 76.1 ND ND ND --ND
ug/L 10/20/08 --10 ND ND 41.7 ND 21.4 ND ND ND --1.2 J
ug/L 03/31/09 --10 12.0 12.1 14.4 0.7 J 17.1 ND 12.7 1.1 J --ND
ug/L 09/30/09 --10 340 11.8 49.2 ND 10.6 ND 48.4 1.18 J --ND
ug/L 03/31/10 --10 4.35 J 25.8 12.2 ND 6.98 J 1.03 J 16.6 2.40 J --ND
ug/L 10/06/10 --10 8.11 J 26.4 17.4 1.69 J 2.70 J ND 8.37 J ND --ND
ug/L 04/07/11 --10 60.0 46.8 8.58 J 1.33 J 4.83 J 1.51 J 4.79 J ND --ND
(Dissolved)ug/L 04/07/11 --10 ------------------ND
ug/L 09/29/11 --10 70.6 54.3 19.1 1.16 J 5.59 J 1.00 J 1.75 J ND --ND
ug/L 03/29/12 --10 85.3 60.9 7.19 J ND 9.14 J ND 1.33 J ND --ND
ug/L 09/27/12 --10 10.8 63.9 4.80 J ND 4.38 J ND 1.50 J ND --ND
ug/L 04/02/13 --10 5.66 J 69.3 3.51 J ND 5.23 J 5.78 J 1.85 J ND --ND
ug/L 09/26/13 --10 2.94 J --3.08 J ND 3.04 J ND ND ND ND ND
ug/L 01/10/14 --10 ----------------3.32 J ND
ug/L 02/25/14 --10 ----------------ND ND
ug/L 04/02/14 --10 15.0 --6.82 J ND 6.00 J ND ND ND ND ND
ug/L 09/30/14 1.40 10 26.8 --65.9 ND 2.85 J 1.81 J ND ND ND ND
ug/L 04/01/15 1.40 10 658 --32.3 ND 3.80 J 2.15 J ND ND 1.85 J ND
ug/L 09/30/15 1.40 10 66.8 --13.5 ND 2.24 J 1.48 J ND 2.07 J 1.93 J ND
SWS Reporting Limit BlanksUpgradientDetected Monitoring
Constituent/Parameter
Sample
Date
Reporting
Units
DowngradientMethod Detection Limit
TABLE 4
Summary of Groundwater Monitoring ResultsDetected ConstituentsSouth Wake Landfill, Permit No. 92-22Wake County, North Carolina
November 2015 Page 2 of 4 Project No. 0739603915
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MW-1 MW-1A MW-2 MW-3 MW-4 MW-5 MW-7 MW-8 MW-9
SWS Reporting Limit BlanksUpgradientDetected Monitoring
Constituent/Parameter
Sample
Date
Reporting
Units
DowngradientMethod Detection Limit
TABLE 4
Summary of Groundwater Monitoring ResultsDetected ConstituentsSouth Wake Landfill, Permit No. 92-22Wake County, North Carolina
Cobalt ug/L 12/05/07 --10 ND dry ND ND ND 5.8 J ND ND --ND
SWS GPS = 1 ug/L ug/L 02/19/08 --10 ND ND ND ND ND 4.8 J ND ND --ND
(No EPA MCL)ug/L 04/09/08 --10 ND 7.2 J 18.8 ND 6.2 J 4.2 J ND ND --ND
ug/L 06/24/08 --10 ND ND ND ND ND 2.8 J ND ND --ND
ug/L 10/20/08 --10 ND 2.0 J ND ND ND 1.6 J ND ND --ND
ug/L 03/31/09 --10 3.2 J 1.6 J 12.8 ND 1.7 J ND ND ND --ND
ug/L 09/30/09 --10 ND 1.19 J 1.40 J ND ND ND 1.74 J ND --ND
ug/L 03/31/10 --10 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --10 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --10 ND 1.67 J ND ND ND ND ND ND --ND
ug/L 09/29/11 --10 ND 1.60 J 1.16 J ND ND 1.43 J ND ND --ND
ug/L 03/29/12 --10 ND 1.49 J ND ND ND ND ND ND --ND
ug/L 09/27/12 --10 ND 1.79 J ND ND ND ND ND 1.52 J --ND
ug/L 04/02/13 --10 ND 1.98 J ND ND ND 2.94 J ND ND --ND
ug/L 09/26/13 --10 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --10 ----------------2.41 J ND
ug/L 02/25/14 --10 ----------------ND ND
ug/L 04/02/14 --10 ND --3.91 J ND ND ND ND ND ND ND
ug/L 09/30/14 1.10 10 1.59 J --2.69 J ND ND 2.96 J ND ND 1.39 J ND
ug/L 04/01/15 1.10 10 1.19 J --2.24 J ND ND 1.68 J ND ND ND ND
ug/L 09/30/15 1.10 10 ND --1.71 J ND ND 3.49 J ND ND ND ND
Copper ug/L 12/05/07 --10 ND dry 1.20 J 2.00 J 2.10 J 1.80 J 2.60 J 7.00 J --ND
NC2L = 1000 ug/L ug/L 02/19/08 --10 ND ND 1.80 J 1.20 J 3.00 J 0.80 J 2.40 J 4.30 J --ND
EPA MCL = 1300 ug/L#ug/L 04/09/08 --10 ND 7.80 J 13.9 J 1.10 B 10.3 1.10 B 2.50 B 1.40 B --1.20 J
ug/L 06/24/08 --10 ND ND ND ND 2.10 J 22.5 ND ND --ND
ug/L 10/20/08 --10 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --10 ND 3.36 B 15.9 ND 1.01 B ND ND ND --1.08 J
(Dissolved)ug/L 03/31/09 --10 --------------------
ug/L 09/30/09 --10 ND 5.57 B ND ND ND ND 5.53 B ND --2.46 J
ug/L 03/31/10 --10 ND 7.41 B ND ND ND ND 4.29 B ND --3.07 J
ug/L 10/06/10 --10 ND 6.19 J ND ND ND ND 1.93 J ND --ND
ug/L 04/07/11 --10 ND 8.09 J ND ND 1.83 J ND 3.60 J ND --ND
ug/L 09/29/11 --10 ND 8.19 J ND ND ND ND 1.82 J ND --ND
ug/L 03/29/12 --10 ND 6.55 J ND ND ND 1.95 J 2.24 J ND --ND
ug/L 09/27/12 --10 ND 6.42 J ND ND ND ND 1.97 J ND --ND
ug/L 04/02/13 --10 ND 6.41 J ND ND ND 2.60 J 1.75 J ND --ND
ug/L 09/26/13 --10 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --10 ----------------3.47 J ND
ug/L 02/25/14 --10 ----------------ND ND
ug/L 04/02/14 --10 ND --8.48 J ND ND ND ND ND ND ND
ug/L 09/30/14 1.60 10 5.74 J --ND ND ND ND ND ND ND ND
ug/L 04/01/15 1.60 10 38.8 --8.02 J 3.18 J 4.31 J 2.97 J 2.60 J 1.87 J 1.60 J ND
ug/L 09/30/15 1.60 10 2.98 J --26.9 ND 1.61 J ND ND ND ND ND
Lead ug/L 12/05/07 --10 ND dry ND ND ND ND ND 5.2 J --ND
NC2L = 15 ug/L ug/L 02/19/08 --10 ND ND ND ND ND ND ND 4.7 J --ND
EPA MCL = 15 ug/L#ug/L 04/09/08 --10 ND ND 29.7 ND ND ND ND 5.9 J --ND
ug/L 06/24/08 --10 ND ND 3.3 J ND 2.2 J ND ND 3.2 J --ND
ug/L 10/20/08 --10 2.0 J ND 2.2 J 2.1 J ND ND ND 2.6 J --ND
ug/L 03/31/09 --10 ND ND 22.6 ND ND ND ND 2.0 J --ND
(Dissolved)ug/L 03/31/09 --10 --------------------
ug/L 09/30/09 --10 2.14 J ND 2.78 J ND ND ND ND ND --ND
(Dissolved)ug/L 09/30/09 --10 --------------------
ug/L 03/31/10 --10 ND ND 1.90 J ND ND ND ND ND --ND
(Verification)ug/L 04/20/10 --10 --------------------
(Dissolved)ug/L 04/20/10 --10 --------------------
ug/L 10/06/10 --10 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --10 2.15 J 2.40 J 2.37 J 2.83 J 3.13 J ND 2.47 J 2.39 J --ND
ug/L 09/29/11 --10 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --10 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --10 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --10 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --10 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --10 ----------------ND ND
ug/L 02/25/14 --10 ----------------ND ND
ug/L 04/02/14 --10 ND --22.0 ND ND ND ND ND ND ND
(Dissolved)ug/L 04/02/14 --10 ----ND --------------
ug/L 09/30/14 2.10 10 ND --3.37 J ND ND ND ND ND ND ND
ug/L 04/01/15 3.10 10 ND --6.87 J ND ND ND ND ND ND ND
ug/L 09/30/15 3.10 10 ND --5.60 J 4.28 J 4.19 J 3.70 J ND 3.25 J ND ND
Nickel ug/L 12/05/07 --50 9.0 J dry 2.9 J 3.3 J 8.0 J 6.1 J ND 7.4 J --ND
NC2L = 100 ug/L ug/L 02/19/08 --50 9.5 J ND 3.2 J ND 61.4 4.8 J 2.4 J 6.4 J --ND
No EPA MCL ug/L 04/09/08 --50 4.6 J 2.3 J 43.9 J ND 270 5.6 J ND ND --ND
ug/L 06/24/08 --50 ND ND 2.9 J 3.0 J 79.6 ND ND ND --ND
ug/L 10/20/08 --50 6.2 J 4.4 J 2.1 J 2.9 J 97.5 3.3 J 3.6 J 2.0 J --ND
ug/L 03/31/09 --50 79.3 1.8 J 31.7 J 3.6 J 63.1 1.3 J 62.2 1.4 J --ND
ug/L 09/30/09 --50 110 3.96 J 2.99 J 22.4 J 34.0 J 4.41 J 28.8 J 2.81 J --ND
ug/L 03/31/10 --50 167 1.99 J 8.32 J 6.64 J 24.3 J 6.22 J 78.1 ND --ND
ug/L 10/06/10 --50 20.1 J ND ND 2.90 J 5.53 J 4.58 J 22.0 J ND --ND
ug/L 04/07/11 --50 21.9 J ND ND 4.12 J 7.34 J 11.2 J 7.33 J ND --ND
ug/L 09/29/11 --50 16.1 J 2.41 J 3.28 J 8.19 J 10.2 J 5.81 J 12.3 J ND --ND
ug/L 03/29/12 --50 47.7 J ND 2.96 J 2.68 J 6.37 J 4.87 J 4.04 J 2.61 J --ND
ug/L 09/27/12 --50 26.9 J ND ND 4.57 J 6.21 J 4.95 J 6.28 J 3.48 J --ND
ug/L 04/02/13 --50 48.3 J ND ND 4.04 J 5.63 J 5.42 J 3.35 J 2.77 J --ND
ug/L 09/26/13 --50 61.3 --ND ND 4.12 J 4.41 J 3.82 J ND ND ND
ug/L 01/10/14 --50 ----------------ND ND
ug/L 02/25/14 --50 ----------------ND ND
ug/L 04/02/14 --50 102 --10.1 J 3.29 J 6.08 J 5.62 J 2.60 J ND ND ND
ug/L 09/30/14 1.80 50 323 --65.7 ND 6.00 J 3.34 J ND ND ND ND
ug/L 04/01/15 1.80 50 111 --32.6 J ND 6.51 J 4.57 J 5.33 J ND ND ND
ug/L 09/30/15 1.80 50 57.7 --65.2 1.95 J 7.22 J 4.83 J 2.19 J 2.35 J 3.10 J ND
Selenium ug/L 12/05/07 --10 ND dry ND ND ND ND ND ND --ND
NC2L = 20 ug/L ug/L 02/19/08 --10 ND ND ND ND 2.2 J ND ND ND --ND
EPA MCL = 50 ug/L ug/L 04/09/08 --10 ND ND ND ND ND ND 2.0 J ND --ND
ug/L 06/24/08 --10 ND 5.5 B ND ND 3.8 B 3.1 B 2.8 B ND --2.9 J
ug/L 10/20/08 --10 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --10 ND ND ND 4.4 B ND ND ND ND --3.5 J
ug/L 09/30/09 --10 ND ND ND ND 4.44 J ND ND ND --ND
ug/L 03/31/10 --10 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --10 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --10 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --10 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --10 ND ND ND 3.23 (ND)J ND ND ND ND --ND
ug/L 09/27/12 --10 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --10 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --10 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --10 ----------------ND ND
ug/L 02/25/14 --10 ----------------ND ND
ug/L 04/02/14 --10 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/14 0.910 10 0.969 J --ND ND ND ND ND ND ND ND
ug/L 04/01/15 0.910 10 1.00 J --1.06 J ND ND ND ND ND ND ND
ug/L 09/30/15 0.910 10 ND --ND ND ND ND ND ND ND ND
Silver ug/L 12/05/07 --10 ND dry ND 3.6 J ND ND ND ND --ND
NC2L = 20 ug/L ug/L 02/19/08 --10 2.5 J ND ND ND ND ND ND 15.1 --ND
EPA MCL = 100 ug/L*ug/L 04/09/08 --10 3.9 J ND ND ND 2.3 J ND ND 3.7 J --ND
ug/L 06/24/08 --10 ND ND ND 21.9 ND ND ND ND --ND
ug/L 10/20/08 --10 6.2 J 4.2 J ND 5.7 J ND ND ND ND --ND
ug/L 03/31/09 --10 11.0 1.6 J ND ND ND ND ND 1.3 J --ND
ug/L 09/30/09 --10 2.13 J 14.4 ND ND ND 3.13 J ND 6.78 J --ND
ug/L 03/31/10 --10 3.25 J ND 22.8 ND ND ND ND ND --ND
(Verification)ug/L 04/20/10 --10 ----2.78 J --------------
ug/L 10/06/10 --10 6.10 J ND ND 21.1 ND ND ND ND --ND
ug/L 04/07/11 --10 2.53 J 3.18 J 1.98 J 2.58 J ND ND ND ND --ND
(Dissolved)ug/L 04/07/11 --10 ------------------ND
ug/L 09/29/11 --10 3.57 J 3.89 J 9.05 J 44.7 5.44 J ND ND 1.90 J --ND
ug/L 03/29/12 --10 2.39 J 3.30 J 4.33 J ND ND ND ND 15.1 --ND
ug/L 09/27/12 --10 4.95 J 4.08 J ND 2.79 J ND ND ND 2.78 J --ND
ug/L 04/02/13 --10 5.32 J ND 3.75 J 11.5 5.08 J 2.50 J ND 9.18 J --ND
ug/L 09/26/13 --10 5.01 J --ND 2.62 J 5.06 J 2.80 J ND 3.42 J ND ND
ug/L 01/10/14 --10 ----------------ND ND
ug/L 02/25/14 --10 ----------------ND ND
ug/L 04/02/14 --10 7.70 J --ND 2.43 J 4.09 J 9.55 J ND 2.51 J ND ND
ug/L 09/30/14 1.90 10 2.75 B --ND 4.95 B 7.84 B 2.25 B 2.47 B 6.06 B ND 2.52 J
ug/L 04/01/15 1.90 10 9.76 J --ND 2.62 J ND ND ND 12.6 ND ND
ug/L 09/30/15 1.90 10 8.60 J --ND ND 3.85 J 6.32 J ND 16.9 ND ND
November 2015 Page 3 of 4 Project No. 0739603915
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MW-1 MW-1A MW-2 MW-3 MW-4 MW-5 MW-7 MW-8 MW-9
SWS Reporting Limit BlanksUpgradientDetected Monitoring
Constituent/Parameter
Sample
Date
Reporting
Units
DowngradientMethod Detection Limit
TABLE 4
Summary of Groundwater Monitoring ResultsDetected ConstituentsSouth Wake Landfill, Permit No. 92-22Wake County, North Carolina
Thallium ug/L 12/05/07 --5.5 0.226 B dry 0.187 B ND ND ND ND ND --0.078 J
SWS GPS = 0.28 ug/L ug/L 02/19/08 --5.5 ND 0.048 B ND ND ND ND ND ND --0.050 J
EPA MCL = 2 ug/L ug/L 04/09/08 --5.5 ND ND 0.081 J ND ND ND ND ND --ND
ug/L 06/24/08 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --5.5 ND ND ND 0.084 B 0.049 B 0.041 B ND ND --0.064 J
ug/L 03/31/09 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 09/30/09 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/10 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --5.5 ND ND ND ND ND ND ND ND --ND
(Verification)ug/L 11/18/10 --5.5 ------------------ND
ug/L 04/07/11 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --5.5 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --5.5 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --5.5 ----------------ND ND
ug/L 02/25/14 --5.5 ----------------ND ND
ug/L 04/02/14 --5.5 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/14 0.110 5.5 ND --ND ND ND ND ND ND ND ND
ug/L 04/01/15 0.110 5.5 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/15 0.110 5.5 ND --ND ND ND ND ND ND ND ND
Vanadium ug/L 12/05/07 --25 ND dry 10.9 J 2.1 J ND ND 3.1 J 5.0 J --ND
SWS GPS = 0.3 ug/L ug/L 02/19/08 --25 ND 4.2 J 7.0 J 1.2 J 1.1 J ND 3.9 J 4.6 J --ND
No EPA MCL ug/L 04/09/08 --25 ND 158 19.4 J ND ND ND 3.4 J 3.0 J --ND
ug/L 06/24/08 --25 ND 167 3.2 J ND ND ND 1.5 J 2.7 J --ND
ug/L 10/20/08 --25 ND 92.3 2.6 J ND ND ND ND ND --ND
ug/L 03/31/09 --25 0.9 J 68.1 16.8 J 1.8 J 1.6 J ND 2.2 J 2.6 J --ND
ug/L 09/30/09 --25 ND 134 6.42 J 1.58 J 2.10 J ND 5.47 J 2.85 J --ND
ug/L 03/31/10 --25 3.93 J 137 2.30 J 1.51 J 1.68 J ND ND 2.51 J --ND
ug/L 10/06/10 --25 2.67 J 123 2.77 J 2.14 J ND ND ND 1.72 J --ND
ug/L 04/07/11 --25 2.22 J 158 2.56 J 2.43 J 1.81 J ND 2.00 J 2.50 J --ND
ug/L 09/29/11 --25 1.66 J 171 4.14 J 2.05 J 1.90 J ND 1.50 J 1.75 J --ND
ug/L 03/29/12 --25 ND 147 1.92 J 1.72 J 1.58 J ND 1.43 J 1.93 J --ND
ug/L 09/27/12 --25 ND 152 1.76 J 1.68 J 1.49 J ND 1.40 J 1.96 J --ND
ug/L 04/02/13 --25 ND 151 1.79 J 2.30 J 1.91 J 3.23 J 1.72 J 2.17 J --ND
ug/L 09/26/13 --25 ND --2.05 J 1.97 J 2.25 J ND ND ND 2.68 J ND
ug/L 01/10/14 --25 ----------------5.54 J ND
ug/L 02/25/14 --25 ----------------2.24 J ND
ug/L 04/02/14 --25 ND --10.8 J 1.85 J 2.07 J ND ND 1.77 J ND ND
ug/L 09/30/14 1.40 25 ND --4.30 J 2.01 J 2.86 J 1.67 J ND 1.52 J 3.21 J ND
ug/L 04/01/15 1.40 25 9.97 J --6.12 J ND 2.26 J ND ND ND 1.46 J ND
ug/L 09/30/15 1.40 25 ND --2.33 J 2.07 J 2.15 J 1.56 J ND 2.62 J 3.38 J ND
Zinc ug/L 12/05/07 --10 ND dry 6.8 B 15.4 637 9.4 J 11.1 34.6 --1.6 J
NC2L = 1000 ug/L ug/L 02/19/08 --10 ND 13.2 15.6 7.2 B 35.6 8.4 B 6.8 B 21.3 --2.1 J
EPA MCL = 5000 ug/L*ug/L 04/09/08 --10 ND 13.9 B 102 8.7 B 68.9 8.2 B 4.9 B 15.9 B --3.9 J
ug/L 06/24/08 --10 ND ND 38.7 4.6 J 22.6 18.1 ND 11.9 --ND
ug/L 10/20/08 --10 ND ND 4.1 J ND 9.4 J ND ND ND --ND
ug/L 03/31/09 --10 8.8 J ND 62.1 5.5 J 18.3 7.3 J ND 14.2 --ND
(Dissolved)ug/L 03/31/09 --10 --------------------
ug/L 09/30/09 --10 9.56 J 5.10 J 9.08 J ND 10.5 ND 11.1 10.4 --ND
ug/L 03/31/10 --10 ND ND 4.14 B 8.39 B 8.51 B ND 7.62 B ND --18.6
ug/L 10/06/10 --10 5.25 J ND 5.20 J 20.5 9.83 J ND ND ND --ND
ug/L 04/07/11 --10 4.81 J ND ND 4.54 J 6.21 J ND ND 23.2 --ND
ug/L 09/29/11 --10 ND ND 6.96 J 10.6 5.49 J 4.94 J ND ND --ND
ug/L 03/29/12 --10 ND ND ND ND 14.6 ND ND ND --ND
ug/L 09/27/12 --10 5.71 J ND ND ND ND ND ND 4.96 J --ND
ug/L 04/02/13 --10 4.20 J ND ND ND 4.45 J 10.7 ND ND --ND
ug/L 09/26/13 --10 ND --4.42 J ND ND 5.30 J ND ND 7.17 J ND
ug/L 01/10/14 --10 ----------------21.9 ND
ug/L 02/25/14 --10 ----------------9.75 J ND
ug/L 04/02/14 --10 ND --39.0 ND 6.61 J 7.15 J ND ND ND ND
ug/L 09/30/14 3.80 10 ND --10.6 ND 114 10.1 ND 3.86 J 8.33 J ND
ug/L 04/01/15 3.80 10 24.9 B --17.1 B 8.12 B 48.0 10.5 B ND ND 4.31 B 9.21 J
ug/L 09/30/15 3.80 10 11.3 --4.94 J ND 20.6 14.6 3.87 J 5.27 J 5.74 J ND
Acetone ug/L 12/05/07 --100 2.8 B dry 2.0 B ND ND ND ND ND --2.4 J
NC2L = 6000 ug/L ug/L 02/19/08 --100 ND ND ND ND ND ND ND ND --ND
No EPA MCL ug/L 04/09/08 --100 ND 31 J ND ND ND ND ND ND --ND
ug/L 06/24/08 --100 ND 43 J ND ND 6.3 B ND ND ND --7.0 J
ug/L 10/20/08 --100 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --100 ND 30 J ND ND ND ND ND ND --ND
ug/L 09/30/09 --100 ND 31 J ND ND ND ND ND ND --ND
ug/L 03/31/10 --100 ND 56 J ND ND ND ND ND ND --ND
ug/L 10/06/10 --100 ND 32 J ND ND ND ND ND ND --ND
ug/L 04/07/11 --100 ND 34 J ND ND ND ND ND ND --ND
ug/L 09/29/11 --100 ND 23 J ND ND ND ND ND ND --ND
ug/L 03/29/12 --100 ND 7.8 J ND ND ND ND ND ND --ND
ug/L 09/27/12 --100 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --100 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --100 ----------------ND ND
ug/L 02/25/14 --100 ----------------ND ND
ug/L 04/02/14 --100 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/14 1.2 100 ND --ND ND ND ND ND ND ND ND
ug/L 04/01/15 1.2 100 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/15 1.2 100 ND --ND ND ND ND ND ND ND ND
Carbon disulfide ug/L 12/06/07 --100 ND dry ND ND ND ND ND ND --ND
NC2L = 700 ug/L ug/L 02/19/08 --100 ND ND ND ND ND ND ND ND --ND
No EPA MCL ug/L 04/09/08 --100 ND ND ND ND ND ND ND ND --ND
ug/L 06/25/08 --100 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --100 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/30/09 --100 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/10 --100 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --100 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --100 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --100 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --100 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --100 ----------------ND ND
ug/L 02/25/14 --100 ----------------ND ND
ug/L 04/02/14 --100 ND --ND ND ND ND ND ND ND
ug/L 04/02/14 --100 ----------------ND ND
ug/L 09/30/14 1.5 100 ND --ND ND ND ND ND ND ND ND
ug/L 04/01/15 1.5 100 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/15 1.5 100 ND --ND ND ND ND ND ND ND ND
Chloroform ug/L 12/05/07 --5 ND dry 1.3 J 1.6 J ND ND ND ND --ND
NC2L = 70 ug/L ug/L 02/19/08 --5 ND ND 1.5 J 2.1 J ND ND ND ND --ND
EPA MCL = 80 ug/L ug/L 04/09/08 --5 ND ND ND 2.0 J ND ND ND ND --ND
ug/L 06/24/08 --5 ND ND 0.42 J 1.5 J ND ND ND ND --ND
ug/L 10/20/08 --5 ND ND 1.2 J 1.8 J ND ND ND ND --ND
ug/L 03/31/09 --5 ND ND ND 1.3 J ND ND ND ND --ND
ug/L 09/30/09 --5 ND ND 1.2 J 1.1 J ND ND ND ND --ND
ug/L 03/31/10 --5 ND ND 0.42 J 1.2 J ND ND ND ND --ND
ug/L 10/06/10 --5 ND ND 0.91 J 1.3 J ND ND ND ND --ND
ug/L 04/07/11 --5 ND ND ND 0.93 J ND ND ND ND --ND
ug/L 09/29/11 --5 ND ND 0.82 J 1.2 J ND ND ND ND --ND
ug/L 03/29/12 --5 ND ND 0.52 J 0.56 J ND ND ND ND --ND
ug/L 09/27/12 --5 ND ND 0.44 J 0.65 J ND ND ND ND --ND
ug/L 04/02/13 --5 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --5 ND --ND 0.65 J ND ND ND ND ND ND
ug/L 01/10/14 --5 ----------------ND ND
ug/L 02/25/14 --5 ----------------ND ND
ug/L 04/02/14 --5 ND --ND 0.82 J ND ND ND ND ND ND
ug/L 09/30/14 0.18 5 ND --ND ND ND ND ND ND ND ND
ug/L 04/01/15 0.18 5 0.46 J --ND ND ND ND ND ND ND ND
ug/L 09/30/15 0.18 5 ND --0.65 J 0.76 J ND ND ND ND ND ND
November 2015 Page 4 of 4 Project No. 0739603915
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MW-1 MW-1A MW-2 MW-3 MW-4 MW-5 MW-7 MW-8 MW-9
SWS Reporting Limit BlanksUpgradientDetected Monitoring
Constituent/Parameter
Sample
Date
Reporting
Units
DowngradientMethod Detection Limit
TABLE 4
Summary of Groundwater Monitoring ResultsDetected ConstituentsSouth Wake Landfill, Permit No. 92-22Wake County, North Carolina
1,1-Dichloroethane ug/L 12/05/07 --5 ND dry ND ND ND ND ND ND --ND
NC2L = 6 ug/L ug/L 02/19/08 --5 ND ND ND ND ND ND ND ND --ND
No EPA MCL ug/L 04/09/08 --5 ND ND ND ND ND ND ND ND --ND
ug/L 06/24/08 --5 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --5 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --5 ND ND ND ND ND ND ND ND --ND
ug/L 09/30/09 --5 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/10 --5 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --5 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --5 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --5 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --5 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --5 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --5 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --5 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --5 ----------------ND ND
ug/L 02/25/14 --5 ----------------ND ND
ug/L 04/02/14 --5 ND --ND ND ND ND ND ND ND
ug/L 04/02/14 --5 ----------------ND ND
ug/L 09/30/14 0.13 5 ND --ND ND ND ND ND ND ND ND
ug/L 04/01/15 0.13 5 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/15 0.13 5 ND --ND ND ND ND ND ND ND ND
Chloromethane ug/L 12/06/07 --1 ND dry ND ND ND ND ND ND --ND
NC2L = 3 ug/L ug/L 02/19/08 --1 ND ND ND ND ND ND ND ND --ND
No EPA MCL ug/L 04/09/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 06/25/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/30/09 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/10 --1 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --1 ND 0.45 B ND ND ND ND 0.69 B ND --0.51 J
ug/L 04/07/11 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --1 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --1 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --1 ----------------ND ND
ug/L 02/25/14 --1 ----------------ND ND
ug/L 04/02/14 --1 ND --ND ND ND ND ND ND ND
ug/L 04/02/14 --1 ----------------ND ND
ug/L 09/30/14 0.13 1 ND --ND ND ND ND ND ND ND ND
ug/L 04/01/15 0.13 1 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/15 0.13 1 ND --ND ND ND ND ND ND ND ND
2-Butanone ug/L 12/06/07 --100 ND dry ND ND ND ND ND ND --ND
NC2L = 4200 ug/L ug/L 02/19/08 --100 ND ND ND ND ND ND ND ND --ND
No EPA MCL ug/L 04/09/08 --100 ND ND ND ND ND ND ND ND --ND
ug/L 06/25/08 --100 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --100 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/30/09 --100 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/10 --100 ND ND ND ND ND ND ND ND --ND
ug/L 10/06/10 --100 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --100 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --100 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --100 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --100 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --100 ----------------ND ND
ug/L 02/25/14 --100 ----------------ND ND
ug/L 04/02/14 --100 ND --ND ND ND ND ND ND ND
ug/L 04/02/14 --100 ----------------ND ND
ug/L 09/30/14 1.3 100 ND --ND ND ND ND ND ND ND ND
ug/L 04/01/15 1.3 100 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/15 1.3 100 ND --ND ND ND ND ND ND ND ND
Toluene ug/L 12/06/07 --1 ND dry ND ND ND ND ND ND --ND
NC2L = 600 ug/L ug/L 02/19/08 --1 ND ND ND ND ND ND ND ND --ND
EPA MCL = 1000 ug/L ug/L 04/09/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 06/25/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 10/20/08 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/09 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/30/09 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/31/10 --1 ND ND ND ND ND ND ND ND --ND
(Verification)ug/L 04/20/10 --1 ------------------ND
ug/L 10/06/10 --1 ND ND ND ND ND ND ND ND --ND
ug/L 04/07/11 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/29/11 --1 ND ND ND ND ND ND ND ND --ND
ug/L 03/29/12 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/27/12 --1 ND ND ND ND ND ND ND ND --ND
ug/L 04/02/13 --1 ND ND ND ND ND ND ND ND --ND
ug/L 09/26/13 --1 ND --ND ND ND ND ND ND ND ND
ug/L 01/10/14 --1 ----------------ND ND
ug/L 02/25/14 --1 ----------------ND ND
ug/L 04/02/14 --1 ND --ND ND ND ND ND ND ND
ug/L 04/02/14 --1 ----------------ND ND
ug/L 09/30/14 0.14 1 ND --ND ND ND ND ND ND ND ND
ug/L 04/01/15 0.14 1 ND --ND ND ND ND ND ND ND ND
ug/L 09/30/15 0.14 1 ND --ND ND ND ND ND ND ND ND
Notes:ug/L =micrograms per liter
J =Estimated value
B =Blank-qualified value
-- =no data available/not applicable# =EPA Action Level
* = EPA Secondary MCL
Standard =NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard
Bold only =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard
Shaded and Bold =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard and EPA MCL
Blanks =field, trip and method blanks
SWS Reporting Limit =NC Solid Waste Section Limits
SWS GPS =Solid Waste Section Groundwater Protection Standard
EPA MCL =US Environmental Protection Agency Maximum Contaminant Level
NC 2L = North Carolina 2L Groundwater Standard
1) Results in parentheses () are from re-analysis
2) Monitoring wells MW-6 and MW-6A were abandoned prior to the September 2013 event.
3) Monitoring wells MW-1A, MW-2A, MW-3A, and MW-8A have been removed from the monitoring network per the revised 2012 WQMP in September 2013 and are used for water levels only.
4) MW-9 was constructed in February 2012 and added to the monitoring network prior to the September 2013 event. The September 2013 - April 2014 events for MW-9 are background events.
November 2015 Page 1 of 2 Project No. 0739603915
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MW-1 MW-1A MW-2 MW-3 MW-4 MW-5 MW-7 MW-8 MW-9
pH S.U.12/05/07 6.77 dry 9.81 6.97 5.64 5.26 6.46 6.49 --S.U.02/19/08 6.78 6.20 8.74 6.42 5.52 5.17 6.53 6.58 --
S.U.04/09/08 6.24 12.10 6.07 5.99 5.87 5.70 6.54 6.65 --S.U.06/24/08 6.53 11.74 7.00 6.27 5.45 5.08 6.26 6.46 --
S.U.10/20/08 5.75 8.22 6.02 5.35 4.97 4.27 6.96 7.85 --
S.U.03/31/09 6.74 12.47 5.58 6.23 5.54 5.64 6.54 6.45 --
S.U.09/30/09 6.25 12.23 6.93 6.10 5.15 5.16 6.38 6.24 --
S.U.03/31/10 6.78 11.59 5.87 5.99 5.50 5.01 6.36 6.12 --
(Verification)S.U.04/20/10 ----5.80 ------------
S.U.10/06/10 6.48 11.50 6.52 5.95 5.42 4.86 6.33 6.42 --S.U.04/07/11 6.45 11.56 6.30 5.91 5.35 4.77 6.12 5.93 --
S.U.09/29/11 6.64 11.75 6.62 6.19 5.48 4.31 6.12 6.24 --
S.U.03/29/12 6.34 11.72 6.28 5.68 5.63 4.64 6.01 6.11 --
S.U.09/27/12 6.46 12.17 6.20 6.18 6.08 4.79 5.91 6.31 --
S.U.04/02/13 6.39 11.49 6.02 5.87 5.64 4.64 5.98 6.14 --
S.U.09/26/13 6.56 --6.09 5.95 5.58 4.98 6.42 6.32 6.01
S.U.01/10/14 ----------------6.28
S.U.02/25/14 ----------------5.72S.U.04/02/14 6.86 --5.63 6.33 5.93 5.18 6.72 6.65 5.63
S.U.09/30/14 7.11 --6.58 6.75 6.33 5.57 6.78 6.95 6.62
S.U.04/01/15 6.69 --5.84 6.41 5.97 4.95 6.62 6.55 5.67
S.U.09/29/15 6.69 --6.25 6.33 5.65 4.78 6.31 6.39 6.36
Specific Conductance uS/cm 12/05/07 8570 dry 806 371 396 72 319 575 --
uS/cm 02/19/08 7460 1650 602 530 446 69 364 534 --
uS/cm 04/09/08 6849 4826 133 232 292 43 222 319 --
uS/cm 06/24/08 722 2000 247 218 312 47 248 331 --uS/cm 10/20/08 5580 1100 230 158 229 30 231 290 --
uS/cm 03/31/09 7538 3502 80 182 306 66 267 291 --
uS/cm 09/30/09 5582 1910 268 139 250 33 298 258 --
uS/cm 03/31/10 5635 2269 173 180 295 43 317 248 --
(Verification)uS/cm 04/20/10 ----177 ------------
uS/cm 10/06/10 5932 1702 283 188 272 39 303 241 --
uS/cm 04/07/11 6248 1969 278 195 283 39 317 243 --
uS/cm 09/29/11 6198 1544 278 197 274 40 316 262 --
uS/cm 03/29/12 5537 1547 227 172 255 38 276 220 --uS/cm 09/27/12 5620 1168 209 175 250 37 291 254 --
uS/cm 04/02/13 5154 1178 129 138 224 33 247 212 --
uS/cm 09/26/13 6798 --143 163 259 42 339 302 167
uS/cm 01/10/14 ----------------171
uS/cm 02/25/14 ----------------87
uS/cm 04/02/14 7275 --96 187 300 72 364 329 83
uS/cm 09/30/14 7627 --174 197 305 81 344 340 168
uS/cm 04/01/15 7519 --70 159 263 46 334 295 74uS/cm 09/29/15 7602 --145 167 274 46 280 300 169
Temperature Celsius 12/05/07 15.06 dry 16.96 15.59 13.70 12.36 15.46 14.40 --
Celsius 02/19/08 15.01 13.03 15.41 15.04 16.47 15.58 14.58 13.31 --
Celsius 04/09/08 15.37 17.33 16.96 16.23 16.75 17.18 14.97 15.90 --
Celsius 06/24/08 18.42 20.16 21.31 22.01 20.65 21.57 17.86 19.63 --
Celsius 10/20/08 19.29 15.91 18.68 18.49 17.24 17.32 18.24 18.07 --
Celsius 03/31/09 17.87 16.71 15.62 16.26 14.95 15.49 14.02 13.00 --
Celsius 09/30/09 17.05 17.19 16.75 19.05 20.13 21.24 17.90 18.06 --Celsius 03/31/10 15.07 16.41 19.48 18.70 20.56 15.93 15.73 16.70 --
(Verification)Celsius 04/20/10 ----17.07 ------------
Celsius 10/06/10 18.48 18.51 20.08 18.54 17.72 18.93 17.04 17.37 --
Celsius 04/07/11 17.68 15.80 19.55 18.55 17.66 20.98 15.15 13.66 --
Celsius 09/29/11 17.95 18.39 20.72 21.02 21.46 22.45 17.68 18.32 --
Celsius 03/29/12 15.48 15.77 21.57 18.32 18.54 20.67 15.23 14.32 --
Celsius 09/27/12 16.89 17.65 20.70 23.14 21.05 23.24 17.39 18.77 --
Celsius 04/02/13 13.54 13.38 16.27 16.56 16.63 17.70 13.39 12.30 --
Celsius 09/26/13 17.1 --19.0 18.1 20.5 20.5 17.5 18.3 18.7Celsius01/10/14 ----------------13.4
Celsius 02/25/14 ----------------10.7
Celsius 04/02/14 13.9 --17.2 17.1 18.3 18.3 14.4 17.2 13.3
Celsius 09/30/14 16.7 --16.9 17.2 17.6 19.3 16.9 18.2 17.5
Celsius 04/01/15 13.8 --14.7 14.9 15.7 16.7 13.6 13.1 12.8
Celsius 09/29/15 19.14 --19.43 21.58 21.66 22.65 18.06 20.32 19.85
Turbidity NTU 12/05/07 92.1 dry 61.2 40.8 34.8 92.5 64.7 890.0 --
NTU 02/19/08 7.20 186.0 52.2 11.3 9.0 6.87 28.1 129.0 --NTU 04/09/08 17.50 47.5 >1000 4.21 17.9 3.01 12.8 95.9 --
NTU 06/24/08 7.97 2.0 439.0 4.33 15.6 3.72 4.94 73.2 --
NTU 10/20/08 18.0 22.5 62.2 3.55 5.46 2.19 3.28 45.5 --
NTU 03/31/09 27.5 5.99 >1000 8.16 8.16 5.04 20.5 45.4 --
NTU 09/30/09 25.5 29.0 92.5 5.28 6.31 1.88 67.0 16.0 --
NTU 03/31/10 19.0 2.95 85.1 5.10 3.90 10.6 16.2 22.0 --
(Verification)NTU 04/20/10 ----51.6 ------------
NTU 10/06/10 10.6 16.4 19.9 7.99 0.0 2.44 4.36 0.0 --NTU 04/07/11 7.50 0.78 34.6 9.56 5.24 1.72 3.75 6.06 --
NTU 09/29/11 15.8 3.50 98.3 22.5 11.4 14.9 5.25 16.8 --
NTU 03/29/12 23.9 0.42 17.5 3.54 7.30 4.58 2.50 16.6 --
NTU 09/27/12 3.59 1.44 13.1 3.89 6.60 1.84 3.09 46.2 --
NTU 04/02/13 4.82 1.48 20.1 6.78 6.18 128 3.00 11.6 --
NTU 09/26/13 8.48 --140 6.92 9.99 9.18 3.06 12.9 86.1
NTU 01/10/14 ----------------318
NTU 02/25/14 ----------------64.0
NTU 04/02/14 7.99 -->1000 3.53 10.8 12.0 3.44 7.80 68.8NTU09/30/14 19.1 --315 2.44 4.71 60.8 0.63 4.94 56.9
NTU 04/01/15 358 --690 1.21 2.25 23.1 0.70 3.02 31.6
NTU 09/29/15 44.3 --160 4.23 4.35 61.8 1.02 11.85 80.5
Oxidation Reduction Potential mV 12/05/07 148 dry 52 185 219 250 203 106 --
mV 02/19/08 196 --98 193 234 278 216 208 --
mV 04/09/08 145.6 -35.2 206.7 177.9 152.8 191.4 181.1 183.4 --
mV 06/24/08 160 -81.0 101 161 175 235 157 95 --
mV 10/20/08 105 -30.0 100 137 157 196 38 -59 --mV 03/31/09 88.7 -81.6 225.1 93.9 229.7 227.8 109.7 194.8 --
mV 09/30/09 47.7 -34.8 39.6 43.7 37.2 93.3 46.9 111.4 --
mV 03/31/10 46.3 -87.1 105.6 62.9 98.6 179.7 17.6 64.9 --
(Verification)mV 04/20/10 ----138.6 ------------
mV 10/06/10 198.6 -5.4 230.1 242.9 266.9 339.5 288.9 157.7 --
mV 04/07/11 111.8 -47.1 111.0 107.1 185.0 225.7 154.4 146.7 --
mV 09/29/11 70.8 -48.3 85.9 84.9 118.1 98.9 43.7 72.4 --
mV 03/29/12 166.2 42.5 93.1 100.1 144.6 173.2 95.4 134.8 --mV 09/27/12 28.1 -21.7 -32.0 -56.4 -3.6 -14.8 -120.4 -150.8 --mV 04/02/13 5.1 -24.7 14.2 -5.0 12.0 55.8 15.4 22.6 --
mV 09/26/13 138.3 --182.6 186.4 215.4 272.1 172.3 174.6 190.1
mV 01/10/14 ----------------64.2
mV 02/25/14 ----------------235.9
mV 04/02/14 80.9 --255.0 143.2 160.3 303.5 159.4 165.6 253.6
mV 09/30/14 56.3 --177.9 169.9 169.4 299.7 187.6 184.4 165.6
mV 04/01/15 178.7 --145.8 110.8 102.0 165.0 121.3 122.9 135.6
mV 09/29/15 -37.5 ---353.7 -186.1 -187.2 -142.0 -134.9 -167.7 -145.1
Upgradient Downgradient
TABLE 5
Summary of Groundwater Field Parameters
South Wake Landfill, Permit No. 92-22Wake County, North Carolina
Detected Monitoring
Constituent/Parameter
Reporting
Units
Sample
Date
November 2015 Page 2 of 2 Project No. 0739603915
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MW-1 MW-1A MW-2 MW-3 MW-4 MW-5 MW-7 MW-8 MW-9
Upgradient Downgradient
TABLE 5
Summary of Groundwater Field Parameters
South Wake Landfill, Permit No. 92-22Wake County, North Carolina
Detected Monitoring
Constituent/Parameter
Reporting
Units
Sample
Date
Dissolved Oxygen mg/L 12/05/07 8.30 dry 4.05 9.13 7.56 5.25 5.41 3.22 --
mg/L 02/19/08 7.26 --4.40 6.89 7.00 5.42 6.84 5.58 --mg/L 04/09/08 7.34 4.48 4.21 7.75 6.15 5.69 4.23 4.17 --
mg/L 06/24/08 2.95 1.58 0.65 5.48 3.97 5.88 1.39 0.55 --
mg/L 10/20/08 1.98 0.11 1.42 1.31 0.58 4.28 0.00 0.00 --
mg/L 03/31/09 1.95 1.75 5.10 3.58 2.16 5.28 2.75 3.64 --
mg/L 09/30/09 2.31 1.96 4.59 3.25 1.69 4.95 1.33 1.58 --
mg/L 03/31/10 2.99 3.13 5.09 3.25 2.41 5.92 1.72 2.98 --
(Verification)mg/L 04/20/10 ----5.50 ------------
mg/L 10/06/10 2.55 2.28 2.64 2.99 3.36 6.07 6.03 3.10 --mg/L 04/07/11 2.78 3.87 4.30 2.84 2.85 5.32 2.10 4.23 --
mg/L 09/29/11 2.74 4.37 4.31 4.07 2.74 3.62 0.63 2.69 --
mg/L 03/29/12 3.51 5.93 5.67 2.99 5.09 7.55 2.32 2.76 --
mg/L 09/27/12 1.44 3.68 3.80 3.36 1.28 4.28 1.52 1.92 --
mg/L 04/02/13 2.71 5.18 6.87 2.96 2.69 5.92 1.92 5.14 --
mg/L 09/26/13 3.07 --4.43 1.39 1.38 3.91 1.62 1.73 4.78
mg/L 01/10/14 ----------------6.52
mg/L 02/25/14 ----------------9.28mg/L 04/02/14 1.91 --5.91 4.00 3.35 4.17 3.42 3.65 8.52
mg/L 09/30/14 3.20 --5.26 3.62 2.43 5.34 3.12 2.69 4.82
mg/L 04/01/15 4.18 --4.13 3.61 3.40 3.38 2.79 4.31 7.75
mg/L 09/29/15 4.91 --4.53 3.32 3.10 2.87 0.88 3.29 3.74
Notes:mg/L =milligrams per liter
S.U. =Standard Units
NTU =Nephelometric Turbidity UnitsuS/cm =microsiemens per centimeter
mV = millivolts
-- =no data available/not applicable
November 2015 Page 1 of 5 Project No. 0739603915
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Antimony ug/L 12/06/07 --6 ND dry ND dry ND ND
(No SW Standard)ug/L 04/09/08 --6 ND ND ND ND ND NDug/L 10/21/08 --6 ND dry ND dry ND ND
ug/L 03/31/09 --6 ND ND ND ND ND ND
ug/L 09/30/09 --6 dry dry dry dry ND ND
ug/L 03/31/10 --6 ND ND ND ND ND ND
ug/L 10/06/10 --6 ND dry ND ND ND ND
ug/L 04/07/11 --6 ND ND ND ND ND ND
ug/L 09/30/11 --6 ND dry ND ND ND ND
ug/L 03/29/12 --6 ND ND ND ND ND ND
ug/L 09/27/12 --6 ND dry ND dry ND ND
ug/L 04/02/13 --6 ND ND ND ND ND 0.535 J
ug/L 09/26/13 --6 ND Dry ND ND ND ND
ug/L 04/02/14 --6 ND ND ND ND ND ND
ug/L 09/30/14 0.220 6 0.240 J dry ND ND ND ND
ug/L 04/01/15 0.220 6 ND ND ND ND ND ND
ug/L 09/30/15 0.220 6 ND ND ND ND ND 0.403 J
Arsenic ug/L 12/06/07 --10 2.5 J dry 3.2 J dry 3.8 J ND
SW Standard = 50 ug/L ug/L 04/09/08 --10 ND ND ND ND ND ND
ug/L 10/21/08 --10 ND dry ND dry ND ND
ug/L 03/31/09 --10 ND ND ND ND ND NDug/L 09/30/09 --10 dry dry dry dry ND ND
ug/L 03/31/10 --10 ND ND ND ND ND ND
ug/L 10/06/10 --10 ND dry ND ND ND ND
ug/L 04/07/11 --10 ND ND ND ND ND 5.41 J
ug/L 09/30/11 --10 ND dry ND ND ND ND
ug/L 03/29/12 --10 ND ND ND 2.95 J ND NDug/L 09/27/12 --10 4.10 B dry 4.75 B dry 3.40 B 5.75 J
ug/L 04/02/13 --10 ND 2.87 J ND ND ND ND
ug/L 09/26/13 --10 ND dry ND ND ND ND
ug/L 04/02/14 --10 ND ND ND ND ND ND
ug/L 09/30/14 5.40 10 ND dry ND ND ND ND
ug/L 04/01/15 6.80 10 ND ND ND ND ND ND
ug/L 09/30/15 6.80 10 ND ND ND ND ND ND
Barium ug/L 12/06/07 --100 51.2 J dry 51.9 J dry 61.5 J 10 J
(No SW Standard)ug/L 04/09/08 --100 48.1 J 38.3 J 47.8 J 58.0 J 73.7 J ND
ug/L 10/21/08 --100 40.5 J dry 107 dry 76.2 J ND
ug/L 03/31/09 --100 47.4 J 34.5 J 52.8 J 50.7 J 74.2 J ND
ug/L 09/30/09 --100 dry dry dry dry 68.6 J ND
ug/L 03/31/10 --100 43.1 J 40.8 J 45.0 J 55.7 J 40.9 J ND
ug/L 10/06/10 --100 29.3 J dry 33.3 J 58.6 J 44.8 J ND
ug/L 04/07/11 --100 49.2 J 45.5 J 56.0 J 66.2 J 46.1 J ND
ug/L 09/30/11 --100 78.6 J dry 65.8 J 60.5 J 34.2 J ND
ug/L 03/29/12 --100 52.5 J 52.2 J 52.0 J 73.7 J 46.3 J ND
ug/L 09/27/12 --100 36.9 J dry 40.7 J dry 50.8 J ND
ug/L 04/02/13 --100 51.9 J 50.9 J 52.9 J 68.7 J 49.9 J 1.23 Jug/L 09/26/13 --100 35.5 J dry 46.7 J 63.0 J 57.8 J ND
ug/L 04/02/14 --100 45.9 J 35.9 J 44.8 J 48.7 J 269 ND
ug/L 09/30/14 1.00 100 80.5 J dry 35.7 J 70.8 J 109 ND
ug/L 04/01/15 1.00 100 68.5 J 42.3 J 44.1 J 57.3 J 142 1.03 J
ug/L 09/30/15 1.00 100 56.4 J 72.6 J 57.9 J 65.3 J 59.8 J ND
Beryllium ug/L 12/06/07 --1 ND dry ND dry ND NDSW Standard = 6.5 ug/L ug/L 04/09/08 --1 ND ND ND ND ND ND
ug/L 10/21/08 --1 ND dry ND dry ND ND
ug/L 03/31/09 --1 ND ND 0.13 J ND 0.20 J ND
ug/L 09/30/09 --1 dry dry dry dry 0.148 J ND
ug/L 03/31/10 --1 ND ND ND ND ND ND
ug/L 10/06/10 --1 ND dry 0.116 J ND ND ND
ug/L 04/07/11 --1 ND ND ND ND ND ND
ug/L 09/30/11 --1 0.131 J dry ND ND ND ND
ug/L 03/29/12 --1 ND ND ND ND ND ND
ug/L 09/27/12 --1 ND dry ND dry ND ND
ug/L 04/02/13 --1 ND ND ND ND ND ND
ug/L 09/26/13 --1 ND dry ND ND ND ND
ug/L 04/02/14 --1 ND ND ND ND 0.534 J ND
ug/L 09/30/14 0.100 1 ND dry ND ND 0.110 J ND
ug/L 04/01/15 0.100 1 ND ND ND ND 0.111 J ND
ug/L 09/30/15 0.100 1 ND ND ND ND ND ND
Blanks
SW-1 SW-2 SW-3 SW-4 SW-5
TABLE 6
Summary of Surface Water Monitoring Results
Detected Constituents
South Wake Landfill, Permit No. 92-22Wake County, North Carolina
Detected Constituent (SW Standard) Reporting Units Sample Date
SWS Reporting Limit
Surface Water Monitoring PointsMethod Detection Limit
November 2015 Page 2 of 5 Project No. 0739603915
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Blanks
SW-1 SW-2 SW-3 SW-4 SW-5
TABLE 6
Summary of Surface Water Monitoring Results
Detected Constituents
South Wake Landfill, Permit No. 92-22Wake County, North Carolina
Detected Constituent (SW Standard) Reporting Units Sample Date
SWS Reporting Limit
Surface Water Monitoring PointsMethod Detection Limit
Cadmium ug/L 12/06/07 --1 ND dry ND dry ND ND
SW Standard = 2 ug/L*ug/L 04/09/08 --1 ND ND ND ND ND NDug/L 10/21/08 --1 ND dry ND dry ND ND
ug/L 03/31/09 --1 ND 0.17 J 0.25 J ND ND ND
ug/L 09/30/09 --1 dry dry dry dry ND ND
ug/L 03/31/10 --1 ND ND ND ND ND ND
ug/L 10/06/10 --1 ND dry ND ND ND ND
ug/L 04/07/11 --1 ND ND ND ND ND ND
ug/L 09/30/11 --1 ND dry ND ND ND ND
ug/L 03/29/12 --1 ND ND ND ND ND ND
ug/L 09/27/12 --1 ND dry ND dry ND ND
ug/L 04/02/13 --1 ND ND ND ND ND ND
ug/L 09/26/13 --1 ND dry ND ND ND ND
ug/L 04/02/14 --1 ND ND ND ND ND ND
ug/L 09/30/14 0.360 1 ND dry ND ND 0.391 J ND
ug/L 04/01/15 0.360 1 ND ND ND ND ND ND
ug/L 09/30/15 0.360 1 ND ND ND ND ND ND
Chromium ug/L 12/06/07 --10 ND dry ND dry ND ND
SW Standard = 50 ug/L ug/L 04/09/08 --10 ND ND ND ND ND ND
ug/L 10/21/08 --10 ND dry 3.7 B dry ND 1.2 J
ug/L 03/31/09 --10 0.7 J ND 1.8 J ND 5.2 J NDug/L 09/30/09 --10 dry dry dry dry 1.48 J ND
ug/L 03/31/10 --10 1.12 J 1.13 J ND ND 1.39 J ND
ug/L 10/06/10 --10 ND dry ND ND 4.63 J ND
ug/L 04/07/11 --10 ND ND ND ND ND ND
ug/L 09/30/11 --10 4.25 J dry 2.70 J ND ND ND
ug/L 03/29/12 --10 ND ND ND 2.51 J ND NDug/L 09/27/12 --10 ND dry 1.67 J dry ND ND
ug/L 04/02/13 --10 ND 3.00 J ND ND ND ND
ug/L 09/26/13 --10 ND dry ND ND 3.54 J ND
ug/L 04/02/14 --10 ND ND ND ND 13.0 ND
ug/L 09/30/14 1.40 10 4.36 J dry ND ND 3.95 J ND
ug/L 04/01/15 1.40 10 3.45 J ND ND ND 5.40 J ND
ug/L 09/30/15 1.40 10 ND 2.05 J ND ND 2.23 J ND
Cobalt ug/L 12/06/07 --10 ND dry ND dry ND ND
(No SW Standard)ug/L 04/09/08 --10 ND ND ND ND ND ND
ug/L 10/21/08 --10 ND dry 1.1 J dry 1.4 J ND
ug/L 03/31/09 --10 ND 0.6 J 2.7 J ND 2.2 J ND
ug/L 09/30/09 --10 dry dry dry dry ND ND
ug/L 03/31/10 --10 ND ND ND ND ND ND
ug/L 10/06/10 --10 ND dry ND ND 1.24 J ND
ug/L 04/07/11 --10 ND ND ND ND ND ND
ug/L 09/30/11 --10 1.94 J dry 1.18 J ND ND ND
ug/L 03/29/12 --10 ND 1.39 J ND ND ND ND
ug/L 09/27/12 --10 ND dry 1.21 J dry 1.20 J ND
ug/L 04/02/13 --10 ND ND ND ND ND NDug/L 09/26/13 --10 ND dry 1.11 J ND 1.36 J ND
ug/L 04/02/14 --10 ND ND ND ND 5.75 J ND
ug/L 09/30/14 1.10 10 2.28 J dry ND ND 2.72 J ND
ug/L 04/01/15 1.10 10 1.86 J ND ND ND 2.96 J ND
ug/L 09/30/15 1.10 10 ND ND ND ND 1.85 J ND
Copper ug/L 12/06/07 --10 1.3 J dry 1.3 J dry ND NDSW Standard = 7 ug/L**ug/L 04/09/08 --10 ND ND ND 5.0 B ND 1.2 J
ug/L 10/21/08 --10 ND dry ND dry ND ND
ug/L 03/31/09 --10 1.14 B 1.24 B 2.62 B 1.26 B 4.54 B 1.08 J
ug/L 09/30/09 --10 dry dry dry dry ND 2.46 J
ug/L 03/31/10 --10 ND ND ND ND ND 3.07 J
ug/L 10/06/10 --10 ND dry 2.89 J 1.81 J 4.12 J ND
ug/L 04/07/11 --10 ND ND 2.09 J 1.72 J ND ND
ug/L 09/30/11 --10 3.86 J dry 3.09 J 1.78 J 1.76 J ND
ug/L 03/29/12 --10 ND ND ND ND ND ND
ug/L 09/27/12 --10 ND dry ND dry ND ND
ug/L 04/02/13 --10 ND 3.56 J ND 1.99 J ND ND
ug/L 09/26/13 --10 ND dry ND ND 2.81 J ND
ug/L 04/02/14 --10 ND ND ND ND 4.58 J ND
ug/L 09/30/14 1.60 10 3.84 J dry ND ND ND ND
ug/L 04/01/15 1.60 10 4.05 J 2.98 J 2.55 J 2.20 J 4.47 J ND
ug/L 09/30/15 1.60 10 1.94 J 3.98 J 2.33 J 2.63 J 2.23 J ND
November 2015 Page 3 of 5 Project No. 0739603915
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Blanks
SW-1 SW-2 SW-3 SW-4 SW-5
TABLE 6
Summary of Surface Water Monitoring Results
Detected Constituents
South Wake Landfill, Permit No. 92-22Wake County, North Carolina
Detected Constituent (SW Standard) Reporting Units Sample Date
SWS Reporting Limit
Surface Water Monitoring PointsMethod Detection Limit
Lead ug/L 12/06/07 --10 ND dry ND dry 2.7 J ND
SW Standard = 25 ug/L*ug/L 04/09/08 --10 ND ND ND ND 3.6 J NDug/L 10/21/08 --10 ND dry 10.3 dry 4.6 J ND
ug/L 03/31/09 --10 ND ND ND ND 5.6 J ND
ug/L 09/30/09 --10 dry dry dry dry 2.10 J ND
ug/L 03/31/10 --10 9.71 J 2.15 J ND ND ND ND
ug/L 10/06/10 --10 ND dry ND ND ND ND
ug/L 04/07/11 --10 2.58 J 2.84 J ND ND 2.11 J ND
ug/L 09/30/11 --10 ND dry ND ND ND ND
ug/L 03/29/12 --10 ND ND ND ND 2.16 J ND
ug/L 09/27/12 --10 ND dry ND dry ND ND
ug/L 04/02/13 --10 ND ND ND ND ND ND
ug/L 09/26/13 --10 ND dry ND ND ND ND
ug/L 04/02/14 --10 ND ND ND ND 18.2 ND
ug/L 09/30/14 2.10 10 ND dry ND ND 2.50 J ND
ug/L 04/01/15 3.10 10 ND ND ND ND 3.11 J ND
ug/L 09/30/15 3.10 10 3.25 J 4.63 J 3.37 J 3.56 J 5.91 J ND
Nickel ug/L 12/06/07 --50 ND dry ND dry ND ND
SW Standard = 88 ug/L*ug/L 04/09/08 --50 ND ND ND 5.9 J ND ND
ug/L 10/21/08 --50 ND dry 4.0 J dry 2.2 J ND
ug/L 03/31/09 --50 0.7 J ND 1.5 J ND 2.5 J NDug/L 09/30/09 --50 dry dry dry dry ND ND
ug/L 03/31/10 --50 ND ND ND ND ND ND
ug/L 10/06/10 --50 ND dry ND ND ND ND
ug/L 04/07/11 --50 ND ND ND ND ND ND
ug/L 09/30/11 --50 2.49 J dry 1.85 J ND ND ND
ug/L 03/29/12 --50 ND ND ND 1.89 J ND NDug/L 09/27/12 --50 ND dry ND dry ND ND
ug/L 04/02/13 --50 ND ND ND ND ND ND
ug/L 09/26/13 --50 ND dry ND ND ND ND
ug/L 04/02/14 --50 1.84 J ND ND ND 4.23 J ND
ug/L 09/30/14 1.80 50 ND dry ND ND ND ND
ug/L 04/01/15 1.80 50 ND 2.87 J ND ND 1.93 J ND
ug/L 09/30/15 1.80 50 ND ND ND ND 2.74 J ND
Selenium ug/L 12/06/07 --10 ND dry ND dry ND ND
SW Standard = 5 ug/L ug/L 04/09/08 --10 4.3 J ND ND ND ND ND
ug/L 10/21/08 --10 ND dry ND dry ND ND
ug/L 03/31/09 --10 ND ND ND ND ND 3.5 J
ug/L 09/30/09 --10 dry dry dry dry ND ND
ug/L 03/31/10 --10 ND ND ND ND ND ND
ug/L 10/06/10 --10 ND dry ND ND ND ND
ug/L 04/07/11 --10 ND ND ND ND 3.05 J (ND)ND
ug/L 09/30/11 --10 ND dry ND ND ND ND
ug/L 03/29/12 --10 ND ND ND ND ND ND
ug/L 09/27/12 --10 ND dry ND dry ND ND
ug/L 04/02/13 --10 ND ND ND ND ND NDug/L 09/26/13 --10 ND dry ND ND ND ND
ug/L 04/02/14 --10 ND ND ND ND ND ND
ug/L 09/30/14 0.910 10 ND dry ND ND ND ND
ug/L 04/01/15 0.910 10 ND ND ND ND ND ND
ug/L 09/30/15 0.910 10 ND ND ND ND ND ND
Silver ug/L 12/06/07 --10 ND dry ND dry ND NDSW Standard = 0.06 ug/L**ug/L 04/09/08 --10 ND ND ND ND ND ND
ug/L 10/21/08 --10 ND dry ND dry ND ND
ug/L 03/31/09 --10 ND ND ND ND ND ND
ug/L 09/30/09 --10 dry dry dry dry ND ND
ug/L 03/31/10 --10 ND ND ND ND ND ND
ug/L 10/06/10 --10 ND dry ND ND ND ND
ug/L 04/07/11 --10 ND ND ND ND ND ND
ug/L 09/30/11 --10 ND dry ND ND ND ND
ug/L 03/29/12 --10 ND ND ND ND ND ND
ug/L 09/27/12 --10 ND dry ND dry ND ND
ug/L 04/02/13 --10 ND ND 2.34 J ND ND ND
ug/L 09/26/13 --10 ND dry ND ND ND ND
ug/L 04/02/14 --10 ND ND ND ND ND ND
ug/L 09/30/14 1.90 10 ND dry 2.43 B 2.31 B ND 2.52 J
ug/L 04/01/15 1.90 10 ND ND ND ND ND ND
ug/L 09/30/15 1.90 10 ND ND ND ND ND ND
November 2015 Page 4 of 5 Project No. 0739603915
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Blanks
SW-1 SW-2 SW-3 SW-4 SW-5
TABLE 6
Summary of Surface Water Monitoring Results
Detected Constituents
South Wake Landfill, Permit No. 92-22Wake County, North Carolina
Detected Constituent (SW Standard) Reporting Units Sample Date
SWS Reporting Limit
Surface Water Monitoring PointsMethod Detection Limit
Thallium ug/L 12/06/07 --5.5 0.069 B dry 0.079 B dry ND 0.078 J
(No SW Standard)ug/L 04/09/08 --5.5 ND ND ND ND 0.037 J NDug/L 10/21/08 --5.5 ND dry 0.096 B dry 0.049 B 0.064 J
ug/L 03/31/09 --5.5 ND ND ND ND ND ND
ug/L 09/30/09 --5.5 dry dry dry dry ND ND
ug/L 03/31/10 --5.5 ND ND ND ND ND ND
ug/L 10/06/10 --5.5 ND dry ND ND ND ND
ug/L 04/07/11 --5.5 ND ND ND ND ND ND
ug/L 09/30/11 --5.5 ND dry ND ND ND ND
ug/L 03/29/12 --5.5 ND ND ND ND ND ND
ug/L 09/27/12 --5.5 ND dry ND dry ND ND
ug/L 04/02/13 --5.5 ND ND ND ND ND ND
ug/L 09/26/13 --5.5 ND dry ND ND ND ND
ug/L 04/02/14 --5.5 ND ND ND ND ND ND
ug/L 09/30/14 0.110 5.5 ND dry ND ND ND ND
ug/L 04/01/15 0.110 5.5 ND ND ND ND ND ND
ug/L 09/30/15 0.110 6 ND ND ND ND ND ND
Vanadium ug/L 12/06/07 --25 ND dry ND dry ND ND
(No SW Standard)ug/L 04/09/08 --25 ND 2.0 J ND 1.9 J 3.4 J ND
ug/L 10/21/08 --25 ND dry 16.5 J dry 6.8 J ND
ug/L 03/31/09 --25 2.3 J 3.5 J 5.3 J 3.5 J 15.5 J NDug/L 09/30/09 --25 dry dry dry dry 6.59 J ND
ug/L 03/31/10 --25 1.55 J 5.76 J 2.24 J 2.73 J 3.24 J ND
ug/L 10/06/10 --25 ND dry ND 3.70 J 16.4 J ND
ug/L 04/07/11 --25 ND 5.25 J 2.48 J 2.07 J 2.39 J ND
ug/L 09/30/11 --25 15.8 J dry 11.0 J 3.65 J 3.35 J ND
ug/L 03/29/12 --25 ND 4.11 J ND 1.51 J 4.53 J NDug/L 09/27/12 --25 3.90 J dry 6.64 J dry 3.07 J ND
ug/L 04/02/13 --25 1.58 J 5.16 J 1.76 J 2.94 J 2.31 J ND
ug/L 09/26/13 --25 ND dry 2.11 J ND 12.4 J ND
ug/L 04/02/14 --25 1.45 J 2.79 J 1.48 J 2.63 J 60.3 ND
ug/L 09/30/14 1.40 25 12.4 J dry ND ND 13.6 J ND
ug/L 04/01/15 1.40 25 10.9 J 2.15 J ND 1.72 J 21.3 J NDug/L 09/30/15 1.40 25 2.35 J 8.86 J 2.95 J 2.86 J 5.14 J ND
Zinc ug/L 12/06/07 --10 5.8 B dry 6.7 B dry 11.1 1.6 J
SW Standard = 50 ug/L**ug/L 04/09/08 --10 6.2 J 5.9 J 5.1 J 7.7 J 81.5 ND
ug/L 10/21/08 --10 ND dry 35.7 dry ND ND
ug/L 03/31/09 --10 6.9 J 28.6 49.3 60.9 22.4 ND
ug/L 09/30/09 --10 dry dry dry dry 12.8 ND
ug/L 03/31/10 --10 12.0 B 22.3 B 30.9 B 7.06 B 13.5 B 18.6
ug/L 10/06/10 --10 ND dry 6.38 J 6.50 J 12.5 ND
ug/L 04/07/11 --10 ND 4.89 J 4.02 J 6.54 J 7.78 J ND
ug/L 09/30/11 --10 15.1 dry 9.79 J ND 3.91 J ND
ug/L 03/29/12 --10 4.16 J 7.87 J ND ND 4.17 J ND
ug/L 09/27/12 --10 ND dry ND dry ND ND
ug/L 04/02/13 --10 ND 6.02 J ND 4.51 J 4.73 J NDug/L 09/26/13 --10 ND dry 5.46 J ND 11.8 ND
ug/L 04/02/14 --10 4.84 J 4.62 J 4.32 J 5.07 J 56.2 ND
(Verification Event)ug/L 05/15/14 --10 --------ND ND
ug/L 09/30/14 3.80 10 16.8 dry ND ND 11.9 ND
ug/L 04/01/15 3.80 10 10.9 B 4.83 B 4.02 B ND 34.0 B 9.21 J
ug/L 09/30/15 3.80 10 ND 18.9 ND ND 7.52 J NDAcetone ug/L 12/06/07 --100 7.5 B dry 10 B dry ND 2.4 J
(No SW Standard)ug/L 04/09/08 --100 ND ND ND ND ND ND
ug/L 10/21/08 --100 ND dry ND dry ND ND
ug/L 03/31/09 --100 ND ND 8.2 J ND 7.9 J ND
ug/L 09/30/09 --100 dry dry dry dry ND ND
ug/L 03/31/10 --100 ND ND ND ND ND NDug/L 10/06/10 --100 ND dry ND 3.2 J ND ND
ug/L 04/07/11 --100 3.1 J 3.0 J (ND)3.6 J ND 4.0 J ND
ug/L 09/30/11 --100 ND dry ND ND 7.5 J ND
ug/L 03/29/12 --100 ND ND ND ND ND ND
ug/L 09/27/12 --100 ND dry ND dry 7.4 J ND
ug/L 04/02/13 --100 ND ND ND ND ND ND
ug/L 09/26/13 --100 ND dry ND ND ND ND
ug/L 04/02/14 --100 ND ND ND ND ND ND
ug/L 09/30/14 1.2 100 ND dry ND ND ND ND
ug/L 04/01/15 1.2 100 ND ND ND ND ND ND
ug/L 09/30/15 1.2 100 ND ND ND ND 45 J ND
November 2015 Page 5 of 5 Project No. 0739603915
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Blanks
SW-1 SW-2 SW-3 SW-4 SW-5
TABLE 6
Summary of Surface Water Monitoring Results
Detected Constituents
South Wake Landfill, Permit No. 92-22Wake County, North Carolina
Detected Constituent (SW Standard) Reporting Units Sample Date
SWS Reporting Limit
Surface Water Monitoring PointsMethod Detection Limit
Chloromethane ug/L 12/06/07 --1 ND dry ND dry ND ND
(No SW Standard)ug/L 04/09/08 --1 ND ND ND ND ND NDug/L 10/21/08 --1 ND dry ND dry ND ND
ug/L 03/31/09 --1 ND ND ND ND ND ND
ug/L 09/30/09 --1 dry dry dry dry ND ND
ug/L 03/31/10 --1 ND ND ND ND ND ND
ug/L 10/06/10 --1 ND dry ND ND 0.51 B 0.51 J
ug/L 04/07/11 --1 ND ND ND ND ND ND
ug/L 09/30/11 --1 ND dry ND ND ND ND
ug/L 03/29/12 --1 ND ND ND ND ND ND
ug/L 09/27/12 --1 ND dry ND dry ND ND
ug/L 04/02/13 --1 ND ND ND ND ND ND
ug/L 09/26/13 --1 ND dry ND ND ND ND
ug/L 04/02/14 --1 ND ND ND ND ND ND
ug/L 09/30/14 0.13 1 ND dry ND ND ND ND
ug/L 04/01/15 0.13 1 ND ND ND ND ND ND
ug/L 09/30/15 0.13 1 ND ND ND ND ND ND
2-Butanone ug/L 12/06/07 --100 ND dry ND dry ND ND
(No SW Standard)ug/L 04/09/08 --100 ND ND ND ND ND ND
ug/L 10/21/08 --100 ND dry ND dry ND ND
ug/L 03/31/09 --100 ND ND ND ND 3.3 J NDug/L 09/30/09 --100 dry dry dry dry ND ND
ug/L 03/31/10 --100 ND ND ND ND ND ND
ug/L 10/06/10 --100 ND dry ND ND ND ND
ug/L 04/07/11 --100 ND ND ND ND ND ND
ug/L 09/30/11 --100 ND dry ND ND ND ND
ug/L 03/29/12 --100 ND ND ND ND ND NDug/L 09/27/12 --100 ND dry ND dry ND ND
ug/L 04/02/13 --100 ND ND ND ND ND ND
ug/L 09/26/13 --100 ND dry ND ND ND ND
ug/L 04/02/14 --100 ND ND ND ND ND ND
ug/L 09/30/14 1.3 100 ND dry ND ND ND ND
ug/L 04/01/15 1.3 100 ND ND ND ND ND ND
ug/L 09/30/15 1.3 100 ND ND ND ND 2.7 J ND
Notes:ug/L =micrograms per liter
ND =Not detected at or above the laboratory method detection limit
J =Estimated value
B =Blank-qualified value
-- =no data available / no flow
dry = no sample collected because sampling point was dry
SW Standard =Surface Water Standard
* =SW Standard = Action Level
** =Narrative Standard
Bold =Concentrations above applicable Surface Water Standards
Blanks =field, trip and method blanksSWS Reporting Limit =NC Solid Waste Section Limit
1) Surface Water Standards based on Class C Freshwater Aquatic Life classification
for the Little Branch in the Cape Fear basin per 15A NCAC 2B.
*SW Standards for Cd, Pb, and Ni are Narrative Standards per 2B .0211
**SW Standards for Cu, Ag, and Zn are Action Level Standards per 2B .0211
2) Results in parentheses () are from re-analysis.
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pH S.U.12/06/07 7.50 dry 7.33 dry 7.59
S.U.04/09/08 6.78 6.69 6.95 7.67 6.78
S.U.10/21/08 5.54 dry 5.39 dry 5.79
S.U.03/31/09 8.00 7.80 7.59 8.68 6.05
S.U.09/30/09 dry dry dry dry 6.16
S.U.03/31/10 6.21 6.70 6.47 7.94 8.97
S.U.10/06/10 6.93 dry 6.84 7.24 6.48
S.U.04/08/11 6.70 6.82 6.53 6.79 6.65
S.U.09/29/11 6.67 dry 6.38 7.00 6.10
S.U.03/29/12 6.75 6.97 6.90 6.94 7.23
S.U.09/27/12 9.56 dry 8.95 dry 4.85
S.U.04/02/13 8.83 8.87 8.70 9.20 5.62
S.U.09/26/13 7.67 dry 7.07 7.29 6.24
S.U.04/02/14 7.63 7.88 7.44 8.75 6.34
(Verification Event)S.U.05/15/14 --------6.12
S.U.09/30/14 7.43 dry 6.78 8.50 7.06
S.U.04/01/15 6.71 7.79 5.92 7.86 6.55
S.U.09/30/15 7.09 6.87 7.26 6.97 7.27
Specific Conductance uS/cm 12/06/07 223 dry 251 dry 129
uS/cm 04/09/08 107 67 104 165 99
uS/cm 10/21/08 96 dry 59 dry 96
uS/cm 03/31/09 101 75 88 145 99
uS/cm 09/30/09 dry dry dry dry 98
uS/cm 03/31/10 98 69 106 167 118
uS/cm 10/06/10 94 dry 103 350 73
uS/cm 04/08/11 130 87 135 231 125
uS/cm 09/29/11 103 dry 109 228 85
uS/cm 03/29/12 100 84 106 209 117
uS/cm 09/27/12 82 dry 73 dry 98
uS/cm 04/02/13 108 105 111 195 103
uS/cm 09/26/13 106 dry 128 309 91
uS/cm 04/02/14 165 167 163 214 125
(Verification Event)uS/cm 05/15/14 --------184
uS/cm 09/30/14 195 dry 143 386 157
uS/cm 04/01/15 204 146 127 264 132
uS/cm 09/30/15 151 144 196 189 173
Temperature Celsius 12/06/07 6.17 dry 5.84 dry 6.82
Celsius 04/09/08 17.96 20.33 17.21 17.88 18.00
Celsius 10/21/08 10.18 dry 11.78 dry 14.00
Celsius 03/31/09 13.22 11.76 15.49 12.52 13.30
Celsius 09/30/09 dry dry dry dry 18.70
Celsius 03/31/10 10.30 15.73 11.46 14.37 19.05
Celsius 10/06/10 12.80 dry 15.13 15.36 15.47
Celsius 04/08/11 13.26 14.14 13.99 14.39 14.81
Celsius 09/29/11 21.87 dry 20.47 19.78 24.70
Celsius 03/29/12 14.94 17.29 15.37 15.55 15.60
Celsius 09/27/12 16.53 dry 17.32 dry 17.42
Celsius 04/02/13 10.11 9.48 10.92 10.62 15.03
Celsius 09/26/13 17.3 dry 17.9 17.6 21.1
Celsius 04/02/14 10.3 10.6 10.6 10.8 15.9
(Verification Event)Celsius 05/15/14 --------21.0
Celsius 09/30/14 17.7 dry 18.8 17.8 19.3
Celsius 04/01/15 11.3 10.3 13.1 10.5 16.1
Celsius 09/30/15 22.25 21.19 22.40 22.30 23.60
Detected Constituent
(SW Standard)
Reporting
Units
Sample
Date
TABLE 7
Summary of Surface Water Field Parameters
Detected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Surface Water Monitoring Points
SW-1 SW-2 SW-3 SW-4 SW-5
November 2015 Page 2 of 2 Project No. 0739603915
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Detected Constituent
(SW Standard)
Reporting
Units
Sample
Date
TABLE 7
Summary of Surface Water Field Parameters
Detected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Surface Water Monitoring Points
SW-1 SW-2 SW-3 SW-4 SW-5
Turbidity NTU 12/06/07 0 dry 127 dry 730
NTU 04/09/08 43.7 25.1 16.0 18.9 84.5
NTU 10/21/08 17.2 dry 262.0 dry 180
NTU 03/31/09 25.2 34.7 81.6 28.4 276
NTU 09/30/09 dry dry dry dry 92.6
NTU 03/31/10 16.2 53.5 23.4 24.8 35.3
NTU 10/06/10 6.99 dry 2.79 20.1 99.0
NTU 04/08/11 7.34 27.4 22.2 13.1 22.8NTU09/29/11 221 dry 165 38.1 76.0
NTU 03/29/12 11.0 30.4 18.9 19.4 60.6NTU09/27/12 40.4 dry 75.7 dry 64.6
NTU 04/02/13 17.2 63.0 20.5 28.3 40.9NTU09/26/13 16.9 dry 55.5 21.5 176
NTU 04/02/14 22.2 36.8 35.2 32.7 >1000 (Verification Event)NTU 05/15/14 --------39.6
NTU 09/30/14 113 dry 12.6 7.81 147NTU04/01/15 129 20.1 13.7 21.2 293
NTU 09/30/15 17.4 84.7 21.0 74.2 41.7Oxidation Reduction Potential mV 12/06/07 213 dry 183 dry 176
mV 04/09/08 148.8 158.1 137.1 93.9 154.9mV10/21/08 112 dry 124 dry 114
mV 03/31/09 111.2 103.2 168.1 64.2 206.7mV09/30/09 dry dry dry dry 121.5
mV 03/31/10 185.9 60.2 148.3 3.4 -52.6mV10/06/10 164.6 dry 165.2 205.8 157.8
mV 04/08/11 116.1 120.5 106.2 145.9 67.0mV09/29/11 126.8 dry 140.6 138.9 64.8
mV 03/29/12 107.7 89.0 86.3 111.3 60.4
mV 09/27/12 44.8 dry 51.3 dry -55.4mV04/02/13 -8.6 -11.2 -4.7 -21.6 28.7
mV 09/26/13 57.3 dry 110.8 37.9 159.2mV04/02/14 89.0 121.0 53.6 43.2 129.6
(Verification Event)mV 05/15/14 --------172.0mV09/30/14 67.3 dry 141.7 77.9 148.6
mV 04/01/15 148.1 138.9 167.7 145.4 168.5mV09/30/15 -313 -423.8 -$338.0 -333.7 -377.0
Dissolved Oxygen mg/L 12/06/07 10.81 dry 10.21 dry 9.14
mg/L 04/09/08 9.45 9.11 9.16 9.44 6.88
mg/L 10/21/08 6.67 dry 4.14 dry 3.10mg/L 03/31/09 10.66 11.20 7.87 11.52 6.81
mg/L 09/30/09 dry dry dry dry 5.62mg/L 03/31/10 9.89 8.29 8.84 8.82 8.43
mg/L 10/06/10 8.75 dry 9.31 8.83 7.71mg/L 04/08/11 10.51 7.95 8.15 10.63 4.81
mg/L 09/29/11 7.98 dry 5.04 5.72 4.59mg/L 03/29/12 8.92 8.69 7.61 7.13 5.13
mg/L 09/27/12 7.14 dry 6.85 dry 0.23mg/L 04/02/13 9.15 8.77 8.34 7.92 6.32
mg/L 09/26/13 6.84 dry 5.81 2.61 3.16mg/L 04/02/14 10.36 8.58 9.79 10.48 9.67
(Verification Event)mg/L 05/15/14 --------0.83mg/L 09/30/14 10.83 dry 7.69 8.86 6.42
mg/L 04/01/15 10.53 10.41 11.97 11.50 9.64
mg/L 09/30/15 6.62 1.00 6.01 6.23 3.70
Notes:mg/L =milligrams per literS.U. =Standard Units
NTU =Nephelometric Turbidity UnitsmS/cm =microsiemens per centimeter
mV =Millivolts-- =no data available / no flow
dry = no sample collected because sampling point was dry
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Antimony ug/L 04/10/08 6 0.73 J ND
ug/L 10/06/08 6 2.00 J ND
ug/L 04/06/09 6 0.89 J ND
ug/L 10/05/09 6 3.45 J ND
ug/L 04/05/10 6 9.23 J ND
ug/L 10/04/10 6 ND ND
ug/L 04/04/11 6 ND ND
ug/L 09/29/11 6 ND ND
ug/L 04/02/12 6 5.46 J ND
ug/L 10/01/12 6 13.9 J ND
ug/L 04/01/13 6 6.38 J 0.535 J
ug/L 10/08/13 6 6.38 J ND
ug/L 04/07/14 6 7.32 J ND
ug/L 10/06/14 6 12.0 J ND
ug/L 04/06/15 6 13.3 J ND
ug/L 10/05/15 6 7.81 J 0.403 J
Arsenic ug/L 04/10/08 10 ND ND
ug/L 10/06/08 10 ND ND
ug/L 04/06/09 10 3.8 J ND
ug/L 10/05/09 10 4.46 J ND
ug/L 04/05/10 10 2.81 J ND
ug/L 10/04/10 10 ND 2.94 J
ug/L 04/04/11 10 10.6 ND
ug/L 09/29/11 10 4.98 J ND
ug/L 04/02/12 10 3.98 J ND
ug/L 10/01/12 10 31.3 ND
ug/L 04/01/13 10 44.1 ND
ug/L 10/08/13 10 32.2 J ND
ug/L 04/07/14 10 ND ND
ug/L 10/06/14 10 73.7 ND
ug/L 04/06/15 10 47.4 J ND
ug/L 10/05/15 10 47.6 ND
Barium ug/L 04/10/08 100 200 ND
ug/L 10/06/08 100 438 ND
ug/L 04/06/09 100 69.2 J ND
ug/L 10/05/09 100 103 ND
ug/L 04/05/10 100 63.1 J ND
ug/L 10/04/10 100 70.1 J ND
ug/L 04/04/11 100 478 ND
ug/L 09/29/11 100 374 ND
ug/L 04/02/12 100 383 ND
ug/L 10/01/12 100 358 ND
ug/L 04/01/13 100 386 ND
ug/L 10/08/13 100 279 ND
ug/L 04/07/14 100 411 ND
ug/L 10/06/14 100 411 ND
ug/L 04/06/15 100 270 ND
ug/L 10/05/15 100 330 ND
Beryllium ug/L 04/10/08 1 ND ND
ug/L 10/06/08 1 ND ND
ug/L 04/06/09 1 ND ND
ug/L 10/05/09 1 0.301 J ND
ug/L 04/05/10 1 ND ND
ug/L 10/04/10 1 ND ND
ug/L 04/04/11 1 ND ND
ug/L 09/29/11 1 ND ND
ug/L 04/02/12 1 ND ND
ug/L 10/01/12 1 ND ND
ug/L 04/01/13 1 ND ND
ug/L 10/08/13 1 ND ND
ug/L 04/07/14 1 ND ND
ug/L 10/06/14 1 ND ND
ug/L 04/06/15 1 ND ND
ug/L 10/05/15 1 ND ND
Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
November 2015 Page 2 of 9 Project No. 0739603915
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Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
Cadmium ug/L 04/10/08 1 ND ND
ug/L 10/06/08 1 ND ND
ug/L 04/06/09 1 0.24 B 0.11 J
ug/L 10/05/09 1 ND ND
ug/L 04/05/10 1 ND ND
ug/L 10/04/10 1 ND ND
ug/L 04/04/11 1 ND ND
ug/L 09/29/11 1 ND ND
ug/L 04/02/12 1 ND ND
ug/L 10/01/12 1 ND ND
ug/L 04/01/13 1 ND ND
ug/L 10/08/13 1 ND ND
ug/L 10/06/14 1 ND ND
ug/L 04/06/15 1 ND ND
ug/L 10/05/15 1 ND ND
Chromium ug/L 04/10/08 10 ND ND
ug/L 10/06/08 10 4.2 J ND
ug/L 04/06/09 10 5.1 B 1.4 J
ug/L 10/05/09 10 7.37 J ND
ug/L 04/05/10 10 5.67 J ND
ug/L 10/04/10 10 3.44 J ND
ug/L 04/04/11 10 23.8 ND
ug/L 09/29/11 10 13.9 ND
ug/L 04/02/12 10 13.6 ND
ug/L 10/01/12 10 132 ND
ug/L 04/01/13 10 215 ND
ug/L 10/08/13 10 69.5 ND
ug/L 04/07/14 10 101 ND
ug/L 10/06/14 10 229 ND
ug/L 04/06/15 10 380 ND
ug/L 10/05/15 10 138 ND
Cobalt ug/L 04/10/08 10 23.0 ND
ug/L 10/06/08 10 15.2 ND
ug/L 04/06/09 10 3.9 J ND
ug/L 10/05/09 10 4.28 J ND
ug/L 04/05/10 10 5.64 J ND
ug/L 10/04/10 10 2.28 J ND
ug/L 04/04/11 10 24.9 ND
ug/L 09/29/11 10 13.5 ND
ug/L 04/02/12 10 20.6 ND
ug/L 10/01/12 10 29.8 ND
ug/L 04/01/13 10 28.5 ND
ug/L 10/08/13 10 20.2 J ND
ug/L 04/07/14 10 30.8 J ND
ug/L 10/06/14 10 28.9 J ND
ug/L 04/06/15 10 74.9 ND
ug/L 10/05/15 10 34.8 ND
Copper ug/L 04/10/08 10 ND ND
ug/L 10/06/08 10 ND ND
ug/L 04/06/09 10 ND ND
ug/L 10/05/09 10 6.48 J ND
ug/L 04/05/10 10 ND 3.07 J
ug/L 10/04/10 10 ND ND
ug/L 04/04/11 10 5.10 J ND
ug/L 09/29/11 10 6.52 J ND
ug/L 04/02/12 10 49.5 ND
ug/L 10/01/12 10 65.8 ND
ug/L 04/01/13 10 90.4 ND
ug/L 10/08/13 10 80.8 ND
ug/L 04/07/14 10 74.7 ND
ug/L 10/06/14 10 51.4 ND
ug/L 04/06/15 10 24.7 J 1.61 J
ug/L 10/05/15 10 116 ND
November 2015 Page 3 of 9 Project No. 0739603915
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Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
Lead ug/L 04/10/08 10 ND ND
ug/L 10/06/08 10 12.7 ND
ug/L 04/06/09 10 3.3 J ND
ug/L 10/05/09 10 38.7 ND
ug/L 04/05/10 10 ND ND
ug/L 10/04/10 10 ND ND
ug/L 04/04/11 10 5.99 J ND
ug/L 09/29/11 10 6.32 J ND
ug/L 04/02/12 10 ND ND
ug/L 10/01/12 10 6.11 J ND
ug/L 04/01/13 10 2.58 J ND
ug/L 10/08/13 10 ND ND
ug/L 04/07/14 10 10.5 J ND
ug/L 10/06/14 10 ND ND
ug/L 04/06/15 10 ND ND
ug/L 10/05/15 10 7.05 J ND
Nickel ug/L 04/10/08 50 13.6 J ND
ug/L 10/06/08 50 26.5 J ND
ug/L 04/06/09 50 19.0 J ND
ug/L 10/05/09 50 26.0 J ND
ug/L 04/05/10 50 16.0 J ND
ug/L 10/04/10 50 8.78 J ND
ug/L 04/04/11 50 33.4 J ND
ug/L 09/29/11 50 32.5 J ND
ug/L 04/02/12 50 33.5 J ND
ug/L 10/01/12 50 141 ND
ug/L 04/01/13 50 166 ND
ug/L 10/08/13 50 102 ND
ug/L 04/07/14 50 135 ND
ug/L 10/06/14 50 196 ND
ug/L 04/06/15 50 395 ND
ug/L 10/05/15 50 190 ND
Silver ug/L 04/10/08 10 ND ND
ug/L 10/06/08 10 ND ND
ug/L 04/06/09 10 2.1 J ND
ug/L 10/05/09 10 ND ND
ug/L 04/05/10 10 ND ND
ug/L 10/04/10 10 ND ND
ug/L 04/04/11 10 5.89 J ND
ug/L 09/29/11 10 5.81 J ND
ug/L 04/02/12 10 ND ND
ug/L 10/01/12 10 3.13 J ND
ug/L 04/01/13 10 ND ND
ug/L 10/08/13 10 ND ND
ug/L 04/07/14 10 ND ND
ug/L 10/06/14 10 ND ND
ug/L 04/06/15 10 ND ND
ug/L 10/05/15 10 ND ND
Thallium ug/L 04/10/08 5.5 ND ND
ug/L 10/06/08 5.5 ND ND
ug/L 04/06/09 5.5 ND ND
ug/L 10/05/09 5.5 2.63 B 0.837 J
ug/L 04/05/10 5.5 ND ND
ug/L 10/04/10 5.5 4.42 J ND
ug/L 04/04/11 5.5 ND ND
ug/L 09/29/11 5.5 ND ND
ug/L 04/02/12 5.5 ND ND
ug/L 10/01/12 5.5 ND ND
ug/L 04/01/13 5.5 ND ND
ug/L 10/08/13 5.5 ND ND
ug/L 04/07/14 5.5 ND ND
ug/L 10/06/14 5.5 ND ND
ug/L 04/06/15 5.5 ND ND
ug/L 10/05/15 5.5 ND ND
November 2015 Page 4 of 9 Project No. 0739603915
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Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
Vanadium ug/L 04/10/08 25 ND ND
ug/L 10/06/08 25 ND ND
ug/L 04/06/09 25 1.5 J ND
ug/L 10/05/09 25 12.9 J ND
ug/L 04/05/10 25 ND ND
ug/L 10/04/10 25 ND ND
ug/L 04/04/11 25 13.3 J ND
ug/L 09/29/11 25 9.89 J ND
ug/L 04/02/12 25 10.2 J ND
ug/L 10/01/12 25 54.1 ND
ug/L 04/01/13 25 31.6 ND
ug/L 10/08/13 25 19.3 J ND
ug/L 04/07/14 25 25.9 J ND
ug/L 10/06/14 25 67.7 ND
ug/L 04/06/15 25 49.4 J ND
ug/L 10/05/15 25 59.1 ND
Zinc ug/L 04/10/08 10 175 ND
ug/L 10/06/08 10 749 ND
ug/L 04/06/09 10 52.1 6.5 J
ug/L 10/05/09 10 92.8 ND
ug/L 04/05/10 10 71.0 ND
ug/L 10/04/10 10 16.2 ND
ug/L 04/04/11 10 332 ND
ug/L 09/29/11 10 141 ND
ug/L 04/02/12 10 467 ND
ug/L 10/01/12 10 755 ND
ug/L 04/01/13 10 999 ND
ug/L 10/08/13 10 404 ND
ug/L 04/07/14 10 506 ND
ug/L 10/06/14 10 264 ND
ug/L 04/06/15 10 3600 ND
ug/L 10/05/15 10 777 ND
Acetone ug/L 04/10/08 100 310 ND
ug/L 10/06/08 100 6600 ND
ug/L 04/06/09 100 5.8 J ND
ug/L 10/05/09 100 ND ND
ug/L 04/05/10 100 14 J ND
ug/L 10/04/10 100 14 J ND
ug/L 04/04/11 100 5400 ND
ug/L 09/29/11 100 580 ND
ug/L 04/02/12 100 1100 ND
ug/L 10/01/12 100 9700 ND
ug/L 04/01/13 100 11000 ND
ug/L 10/08/13 100 12000 ND
ug/L 04/07/14 100 3900 ND
ug/L 10/06/14 100 2100 ND
ug/L 04/06/15 100 24000 ND
ug/L 10/05/15 100 9700 ND
Benzene ug/L 04/10/08 1 ND ND
ug/L 10/06/08 1 ND ND
ug/L 04/06/09 1 ND ND
ug/L 10/05/09 1 ND ND
ug/L 04/05/10 1 ND ND
ug/L 10/04/10 1 ND ND
ug/L 04/04/11 1 ND ND
ug/L 09/29/11 1 ND ND
ug/L 04/02/12 1 12 ND
ug/L 10/01/12 1 ND ND
ug/L 04/01/13 1 ND ND
ug/L 10/08/13 1 ND ND
ug/L 04/07/14 1 ND ND
ug/L 10/06/14 1 5.0 J ND
ug/L 04/06/15 1 ND ND
ug/L 10/05/15 1 ND ND
November 2015 Page 5 of 9 Project No. 0739603915
G:\Projects\Waste Industries\South Wake\Groundwater\GWMR\Sept 2015\Tables\South Wake Tables Sept 2015.xlsx
Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
Carbon disulfide ug/L 04/10/08 100 ND ND
ug/L 10/06/08 100 ND ND
ug/L 04/06/09 100 3.6 J ND
ug/L 10/05/09 100 ND ND
ug/L 04/05/10 100 ND ND
ug/L 10/04/10 100 ND ND
ug/L 04/04/11 100 ND ND
ug/L 09/29/11 100 ND ND
ug/L 04/02/12 100 ND ND
ug/L 10/01/12 100 ND ND
ug/L 04/01/13 100 ND ND
ug/L 10/08/13 100 ND ND
ug/L 04/07/14 100 ND ND
ug/L 10/06/14 100 ND ND
ug/L 04/06/15 100 ND ND
ug/L 10/05/15 100 ND ND
1,2-Dichloroethane ug/L 04/10/08 1 ND ND
ug/L 10/06/08 1 ND ND
ug/L 04/06/09 1 ND ND
ug/L 10/05/09 1 ND ND
ug/L 04/05/10 1 ND ND
ug/L 10/04/10 1 1.8 ND
ug/L 04/04/11 1 ND ND
ug/L 09/29/11 1 ND ND
ug/L 04/02/12 1 ND ND
ug/L 10/01/12 1 ND ND
ug/L 04/01/13 1 ND ND
ug/L 10/08/13 1 ND ND
ug/L 04/07/14 1 ND ND
ug/L 10/06/14 1 ND ND
ug/L 04/06/15 1 ND ND
ug/L 10/05/15 1 ND ND
Ethylbenzene ug/L 04/10/08 1 3.1 J ND
ug/L 10/06/08 1 ND ND
ug/L 04/06/09 1 ND ND
ug/L 10/05/09 1 ND ND
ug/L 04/05/10 1 0.49 J ND
ug/L 10/04/10 1 ND ND
ug/L 04/04/11 1 ND ND
ug/L 09/29/11 1 21 ND
ug/L 04/02/12 1 15 ND
ug/L 10/01/12 1 ND ND
ug/L 04/01/13 1 ND ND
ug/L 10/08/13 1 ND ND
ug/L 04/07/14 1 ND ND
ug/L 10/06/14 1 5.9 J ND
ug/L 04/06/15 1 ND ND
ug/L 10/05/15 1 ND ND
2-Hexanone ug/L 04/10/08 50 ND ND
ug/L 10/06/08 50 ND ND
ug/L 04/06/09 50 ND ND
ug/L 10/05/09 50 ND ND
ug/L 04/05/10 50 ND ND
ug/L 10/04/10 50 ND ND
ug/L 04/04/11 50 ND ND
ug/L 09/29/11 50 ND ND
ug/L 04/02/12 50 ND ND
ug/L 10/01/12 50 ND ND
ug/L 04/01/13 50 ND ND
ug/L 10/08/13 50 ND ND
ug/L 04/07/14 50 ND ND
ug/L 10/06/14 50 19 J ND
ug/L 04/06/15 50 ND ND
ug/L 10/05/15 50 ND ND
November 2015 Page 6 of 9 Project No. 0739603915
G:\Projects\Waste Industries\South Wake\Groundwater\GWMR\Sept 2015\Tables\South Wake Tables Sept 2015.xlsx
Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
Bromomethane ug/L 04/10/08 10 ND ND
ug/L 10/06/08 10 ND ND
ug/L 04/06/09 10 27 ND
ug/L 10/05/09 10 ND ND
ug/L 04/05/10 10 24 ND
ug/L 10/04/10 10 ND ND
ug/L 04/04/11 10 ND ND
ug/L 09/29/11 10 ND ND
ug/L 04/02/12 10 ND ND
ug/L 10/01/12 10 ND ND
ug/L 04/01/13 10 ND ND
ug/L 10/08/13 10 ND ND
ug/L 04/07/14 10 ND ND
ug/L 10/06/14 10 ND ND
ug/L 04/06/15 10 ND ND
ug/L 10/05/15 10 ND ND
Chloromethane ug/L 04/10/08 1 ND ND
ug/L 10/06/08 1 ND ND
ug/L 04/06/09 1 20 ND
ug/L 10/05/09 1 ND ND
ug/L 04/05/10 1 13 ND
ug/L 10/04/10 1 ND ND
ug/L 04/04/11 1 ND ND
ug/L 09/29/11 1 ND ND
ug/L 04/02/12 1 ND ND
ug/L 10/01/12 1 ND ND
ug/L 04/01/13 1 ND ND
ug/L 10/08/13 1 ND ND
ug/L 04/07/14 1 ND ND
ug/L 10/06/14 1 ND ND
ug/L 04/06/15 1 ND ND
ug/L 10/05/15 1 ND ND
Methylene chloride ug/L 04/10/08 1 30 ND
ug/L 10/06/08 1 ND ND
ug/L 04/06/09 1 ND ND
ug/L 10/05/09 1 ND ND
ug/L 04/05/10 1 ND ND
ug/L 10/04/10 1 ND ND
ug/L 04/04/11 1 ND ND
ug/L 09/29/11 1 ND ND
ug/L 04/02/12 1 ND ND
ug/L 10/01/12 1 ND ND
ug/L 04/01/13 1 ND ND
ug/L 10/08/13 1 ND ND
ug/L 04/07/14 1 ND ND
ug/L 10/06/14 1 ND ND
ug/L 04/06/15 1 ND ND
ug/L 10/05/15 1 ND ND
2-Butanone ug/L 04/10/08 100 320 ND
ug/L 10/06/08 100 11000 ND
ug/L 04/06/09 100 ND ND
ug/L 10/05/09 100 ND ND
ug/L 04/05/10 100 16 J ND
ug/L 10/04/10 100 ND ND
ug/L 04/04/11 100 9600 ND
ug/L 09/29/11 100 890 ND
ug/L 04/02/12 100 1800 ND
ug/L 10/01/12 100 16000 ND
ug/L 04/01/13 100 18000 ND
ug/L 10/08/13 100 15000 ND
ug/L 04/07/14 100 6500 ND
ug/L 10/06/14 100 1900 ND
ug/L 04/06/15 100 22000 ND
ug/L 10/05/15 100 13000 ND
November 2015 Page 7 of 9 Project No. 0739603915
G:\Projects\Waste Industries\South Wake\Groundwater\GWMR\Sept 2015\Tables\South Wake Tables Sept 2015.xlsx
Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
Iodomethane ug/L 04/10/08 10 ND ND
ug/L 10/06/08 10 ND ND
ug/L 04/06/09 10 3.1 J ND
ug/L 10/05/09 10 ND ND
ug/L 04/05/10 10 14 ND
ug/L 10/04/10 10 ND ND
ug/L 04/04/11 10 ND ND
ug/L 09/29/11 10 ND ND
ug/L 04/02/12 10 ND ND
ug/L 10/01/12 10 ND ND
ug/L 04/01/13 10 ND ND
ug/L 10/08/13 10 ND ND
ug/L 04/07/14 10 ND ND
ug/L 10/06/14 10 ND ND
ug/L 04/06/15 10 ND ND
ug/L 10/05/15 10 ND ND
4-Methyl-2-pentanone ug/L 04/10/08 100 11 J ND
ug/L 10/06/08 100 ND ND
ug/L 04/06/09 100 ND ND
ug/L 10/05/09 100 ND ND
ug/L 04/05/10 100 ND ND
ug/L 10/04/10 100 ND ND
ug/L 04/04/11 100 130 ND
ug/L 09/29/11 100 ND ND
ug/L 04/02/12 100 48 J ND
ug/L 10/01/12 100 ND ND
ug/L 04/01/13 100 180 ND
ug/L 10/08/13 100 110 ND
ug/L 04/07/14 100 77 J ND
ug/L 10/06/14 100 ND ND
ug/L 04/06/15 100 ND ND
ug/L 10/05/15 100 90 J ND
Toluene ug/L 04/10/08 1 44 ND
ug/L 10/06/08 1 ND ND
ug/L 04/06/09 1 ND ND
ug/L 10/05/09 1 ND ND
ug/L 04/05/10 1 7.5 ND
ug/L 10/04/10 1 ND ND
ug/L 04/04/11 1 150 ND
ug/L 09/29/11 1 19 ND
ug/L 04/02/12 1 42 ND
ug/L 10/01/12 1 54 ND
ug/L 04/01/13 1 330 ND
ug/L 10/08/13 1 290 ND
ug/L 04/07/14 1 73 ND
ug/L 10/06/14 1 24 ND
ug/L 04/06/15 1 89 J ND
ug/L 10/05/15 1 80 ND
Xylenes (Total)ug/L 04/10/08 5 12 ND
ug/L 10/06/08 5 ND ND
ug/L 04/06/09 5 ND ND
ug/L 10/05/09 5 ND ND
ug/L 04/05/10 5 0.73 J ND
ug/L 10/04/10 5 ND ND
ug/L 04/04/11 5 ND ND
ug/L 09/29/11 5 38 ND
ug/L 04/02/12 5 32 ND
ug/L 10/01/12 5 23 ND
ug/L 04/01/13 5 ND ND
ug/L 10/08/13 5 ND ND
ug/L 04/07/14 5 32 J ND
ug/L 10/06/14 5 25 J ND
ug/L 04/06/15 5 ND ND
ug/L 10/05/15 5 ND ND
November 2015 Page 8 of 9 Project No. 0739603915
G:\Projects\Waste Industries\South Wake\Groundwater\GWMR\Sept 2015\Tables\South Wake Tables Sept 2015.xlsx
Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
Nitrate mg/L 04/10/08 10 0.082 J ND
mg/L 10/06/08 10 0.025 B 0.028 J
mg/L 04/06/09 10 ND ND
mg/L 10/05/09 10 64 ND
mg/L 04/05/10 10 ND ND
mg/L 10/04/10 10 0.88 J ND
mg/L 04/04/11 10 0.12 J ND
mg/L 09/29/11 10 0.076 J ND
mg/L 04/02/12 10 0.220 J ND
mg/L 10/01/12 10 0.047 J ND
mg/L 04/01/13 10 ND ND
mg/L 10/08/13 10 ND ND
mg/L 04/07/14 10 0.049 J ND
mg/L 10/06/14 10 0.064 J ND
mg/L 04/06/15 10 0.092 J ND
mg/L 10/05/15 10 ND ND
Sulfate mg/L 04/10/08 250 20 J ND
mg/L 10/06/08 250 68 J ND
mg/L 04/06/09 250 46 J ND
mg/L 10/05/09 250 16 J ND
mg/L 04/05/10 250 21 J ND
mg/L 10/04/10 250 12 J ND
mg/L 04/04/11 250 2.4 J ND
mg/L 09/29/11 250 8.7 J ND
mg/L 04/02/12 250 1.8 J ND
mg/L 10/01/12 250 3.7 J ND
mg/L 04/01/13 250 3.4 J ND
mg/L 10/08/13 250 ND ND
mg/L 04/07/14 250 3.6 J ND
mg/L 10/06/14 250 29 J ND
mg/L 04/06/15 250 120 J ND
mg/L 10/05/15 250 43 J ND
Biochemical Oxygen Demand mg/L 04/10/08 -->180 ND
mg/L 10/06/08 --1500 ND
mg/L 04/06/09 --34 ND
mg/L 10/05/09 --ND ND
mg/L 04/05/10 --110 ND
mg/L 10/04/10 --10 ND
mg/L 04/04/11 --900 ND
mg/L 09/29/11 --64 ND
mg/L 04/02/12 --180 ND
mg/L 10/01/12 --290 ND
mg/L 04/01/13 --> 2200 ND
mg/L 10/08/13 --1300 ND
mg/L 04/07/14 --530 ND
mg/L 10/06/14 --470 ND
mg/L 04/06/15 -->7400 ND
mg/L 10/05/15 --1100 ND
Chemical Oxygen Demand mg/L 04/10/08 --590 ND
mg/L 10/06/08 --2100 ND
mg/L 04/06/09 --74 ND
mg/L 10/05/09 --78 ND
mg/L 04/05/10 --120 ND
mg/L 10/04/10 --64 ND
mg/L 04/04/11 --1500 ND
mg/L 09/29/11 --320 ND
mg/L 04/02/12 --490 ND
mg/L 10/01/12 --3000 ND
mg/L 04/01/13 --8300 ND
mg/L 10/08/13 --160 ND
mg/L 04/07/14 --1800 ND
mg/L 10/06/14 --3100 ND
mg/L 04/06/15 --24000 ND
mg/L 10/05/15 --6200 ND
November 2015 Page 9 of 9 Project No. 0739603915
G:\Projects\Waste Industries\South Wake\Groundwater\GWMR\Sept 2015\Tables\South Wake Tables Sept 2015.xlsx
Detected Constituent
TABLE 8
Summary of Leachate Monitoring ResultsDetected Constituents
South Wake Landfill, Permit No. 92-22
Wake County, North Carolina
Reporting Units Sample Date
SWS
Reporting
Limit
BlanksL-1
Phosphorus mg/L 04/10/08 --0.19 ND
mg/L 10/06/08 --1.4 ND
mg/L 04/06/09 --ND ND
mg/L 10/05/09 --0.18 ND
mg/L 04/05/10 --0.24 ND
mg/L 10/04/10 --0.093 J ND
mg/L 04/04/11 --0.77 ND
mg/L 09/29/11 --0.6 ND
mg/L 04/02/12 --0.5 ND
mg/L 10/01/12 --3.1 ND
mg/L 04/01/13 --4.1 ND
mg/L 10/08/13 --1.8 ND
mg/L 04/07/14 --1.6 ND
mg/L 10/06/14 --3.7 ND
mg/L 04/06/15 --6.6 ND
mg/L 10/05/15 --4.2 ND
pH (field)S.U.04/10/08 --6.72 --
S.U.10/06/08 --7.42 --
S.U.04/06/09 --7.48 --
S.U.10/05/09 --7.54 --
S.U.04/05/10 --6.93 --
S.U.10/04/10 --7.90 --
S.U.04/04/11 --6.60 --
S.U.09/29/11 --6.81 --
S.U.04/02/12 --6.80 --
S.U.10/01/12 --7.67 --
S.U.04/01/13 --7.57 --
S.U.10/08/13 --7.31 --
S.U.04/07/14 --7.40 --
S.U.10/06/14 --7.90 --
S.U.04/06/15 7.70 --
S.U.10/05/15 7.58 --
Specific Conductance (field)uS/cm 04/10/08 --769 --
(lab through current date)uS/cm 10/06/08 --2300 --
uS/cm 04/06/09 --1400 --
uS/cm 10/14/09 --1300 --
uS/cm 04/05/10 --1700 --
uS/cm 10/04/10 --1000 --
uS/cm 04/04/11 --3900 --
uS/cm 09/29/11 --3600 --
uS/cm 04/02/12 --3400 --
uS/cm 10/01/12 --13000 --
uS/cm 04/01/13 --16000 --
uS/cm 10/08/13 --11000 --
uS/cm 04/07/14 --10000 --
uS/cm 10/06/14 --19000 --
uS/cm 04/06/15 25000 --
uS/cm 10/05/15 16000 --
Temperature (field)Celsius 04/10/08 --15.72 --
Celsius 10/06/08 --25.30 --
Celsius 04/06/09 --20.6 --
Celsius 10/05/09 --22.7 --
Celsius 04/05/10 --25.2 --
Celsius 10/04/10 --23.7 --
Celsius 04/04/11 --19.3 --
Celsius 09/29/11 --13.4 --
Celsius 04/02/12 --14.40 --
Celsius 10/01/12 --13.10 --
Celsius 04/01/13 --14.50 --
Celsius 10/08/13 --13.70 --
Celsius 04/07/14 --16.0 --
Celsius 10/06/14 --26.0 --
Celsius 04/06/15 --25.0 --
Celsius 10/05/15 --19.2 --
Notes:
mg/L =milligrams per liter
ug/L =micrograms per liter
S.U. =Standard Units
NTU =Nephelometric Turbidity Units
ND =Not detected at or above the laboratory method detection limit
mS/cm =microsiemens per centimeter
mV =Millivolts
J =Estimated value
B =Blank-qualified value
-- =no data available/not applicable
1.The following dilutions were noted for the September 2015 event: VOCs (50X),
COD (20X), antimony, selenium, thallium, BOD and sulfate (10X), and phosphorous (3.2X)

DRAWINGS
35
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PHASE IB
PHASE 2A
PHASE 2B
PHASE 3
PHASE 4A
PHASE 4B
PHASE 5A
PHASE 5B
CONSULTANT
DESIGN
PREPARED
REVIEW
APPROVED
YYYY-MM-DD TITLE
PROJECT No.Rev.
PROJECTCLIENT
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0739603915
PHASE
100
DRAWING
10
2015-10-22
LKB
ACS
DYR
RPK
SOUTH WAKE SOLID WASTE MANAGEMENT FACILITY
PERMIT NO. 92-22
WAKE COUNTY, NORTH CAROLINA
WASTE INDUSTRIES USA, INC.
GROUNDWATER SURFACE CONTOUR MAP
SEPTEMBER 29, 2015
LEGEND
NOTES
1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET
2. GROUNDWATER CONTOUR INTERVAL = 10 FEET
3. BASE MAP PROVIDED BY RICHARDSON SMITH GARDNER & ASSOCIATES. TOPOGRAPHY PROVIDED
FROM AERIAL SURVEYS PREPARED BY SURVEYING SOLUTIONS P.C., PHOTOGRAPHY DATES
JANUARY 2, 2015 AND JANUARY 28, 2014.
4. COORDINATE SYSTEM IS N.C. STATE PLANE (NAD 83 AND VERTICAL DATUM IS NAVD 88).
5. MONITORING WELL AND METHANE MONITORING PROBE LOCATIONS WERE SURVEYED BY
SURVEY SOLUTIONS, P.C. OF RALEIGH, NORTH CAROLINA.
6. METHANE MONITORING LOCATIONS MG-21, MG-22, AND MG-23 ARE BAR HOLE PUNCH LOCATIONS.
7. GROUNDWATER ELEVATIONS MEASURED ON SEPTEMBER 29, 2015 WERE USED IN THE
CONSTRUCTION OF THIS GROUNDWATER CONTOUR MAP.
8. GROUNDWATER WELLS MW-1A, MW-2A, MW-3A, MW-4A, AND MW-8A ARE DEEP AQUIFER WELLS
AND WERE NOT USED IN THE CONSTRUCTION OF THIS GROUNDWATER CONTOUR MAP.
9. GW WELLS MW-1A, MW-2A, MW-3A, MW-8A ARE NO LONGER SAMPLED PER THE APPROVED
MONITORING PLAN.
EXISTING 10-FOOT GROUND SURFACE CONTOUR
EXISTING 2-FOOT GROUND SURFACE CONTOUR
EXISTING ROADS
APPROXIMATE PROPERTY LINE
PROPOSED LIMITS OF WASTE
POTENTIOMETRIC GROUNDWATER CONTOURS (10-FT. INTERVAL)
GROUNDWATER FLOW SEGMENT
MONITORING WELL AND GROUNDWATER ELEVATION
METHANE MONITORING PROBE
SURFACE WATER MONITORING POINT
SITE LOCATION
SITE LOCATION MAP
(LOCATION IS APPROXIMATE)
0
FEET
200 400
SCALE
GOLDER ASSOCIATES NC, INC.
PG C-399
CONSULTANT
DESIGN
PREPARED
REVIEW
APPROVED
YYYY-MM-DD TITLE
PROJECT No.Rev.
PROJECTCLIENT
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A
N
S
I

D
0
1
i
n
0739603915
PHASE
100
DRAWING
20
2015-11-24
BSD
BSD
DYR
RPK
SOUTH WAKE SOLID WASTE MANAGEMENT FACILITY
PERMIT NO. 92-22
WAKE COUNTY, NORTH CAROLINA
WASTE INDUSTRIES USA, INC.
SURFACE WATER LOCATION MAP
LEGEND
NOTES
1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET
2. GROUNDWATER CONTOUR INTERVAL = 10 FEET
3. BASE MAP PROVIDED BY RICHARDSON SMITH GARDNER & ASSOCIATES. TOPOGRAPHY PROVIDED
FROM AERIAL SURVEYS PREPARED BY SURVEYING SOLUTIONS P.C., PHOTOGRAPHY DATES
JANUARY 2, 2015 AND JANUARY 28, 2014.
4. COORDINATE SYSTEM IS N.C. STATE PLANE (NAD 83 AND VERTICAL DATUM IS NAVD 88).
5. AERIAL PHOTOGRAPHY OBTAINED FROM ESRI IMAGERY BASE LAYER.
EXISTING 10-FOOT GROUND SURFACE CONTOUR
EXISTING 2-FOOT GROUND SURFACE CONTOUR
EXISTING ROADS
APPROXIMATE PROPERTY LINE
PROPOSED LIMITS OF WASTE
SURFACE WATER MONITORING POINT
SITE LOCATION
SITE LOCATION MAP
(LOCATION IS APPROXIMATE)
0
FEET
200 400
SCALE
GOLDER ASSOCIATES NC, INC.
PG C-399
PHASE 1B
PHASE 1A
PHASE 2A
PHASE 2B
PHASE 3
PHASE 4A
PHASE 4B
PHASE 5B
PHASE 5A
SW-1
SW-3
SW-5
SW-4
SW-2
CLOSED
FELTONSVILLE
LANDFILL
SOUTH WAKE
LANDFILL
N
C

H
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G
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W
A
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5
5
SW-1

APPENDIX A
GROUNDWATER AND SURFACE WATER SAMPLING LOGS

APPENDIX B
SEPTEMBER 2015 CERTIFICATES-OF-ANALYSIS, CHAIN-OF-CUSTODY FORMS AND
LABORATORY DATA REVIEWS

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Page 1 of 1
GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 4
Project Name: WI – South Wake LF
Project Reference Number: 0739-603915.100
Sampling Event Date: September 29, 2015
Review Date: October 22, 2015 Initials: AS
Report #: C511290
Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a
brief explanation should follow the applicable item.

Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain-of-custody form, and laboratory provided sample group quality assurance and quality control data for the
above referenced sample group to identify potential bias or inaccuracy, in general accordance
with the following United States Environmental Protection Agency documents:
• Region III Modifications to Functional Guidelines for Organic Data Review Multi-Media, Multi-Concentration, September 1994;
• Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and
• Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July
1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility List (.500 Rules)
NC C & D List (New Rules)
X NC Appendix I
NC Appendix I + Detects
NC Appendix II
NC Subtitle D Leachate List
Other:
1.0 CHAIN OF CUSTODY (COC) REVIEW

AS COC was properly signed by all parties.
AS Correct project name and number are on the form.
AS Sample receipt condition at laboratory was acceptable.
AS Each sample and blank submitted for analysis appears in the report.

GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 4
2.0 SAMPLE HOLDING TIMES

AS Holding times for extraction and/or analysis were met for each analytical Method (see below for reference).
Review Criteria
Method Analytes Holding Time
SW-846 Method 8260 and 8011 VOCs 14 days
SW-846 Methods 8270, 8080,
8081, 8082, and 8151
SVOCs, PCBs,
pesticides and herbicides
7 days for extraction, 40 days
from extraction for analysis
SW-846 Methods 6000 and 7000
Series
Metals except mercury 6 months (no temperature
requirements)
SW-846 Method 7470 Mercury 28 days
SW-846 Method 376.1 Sulfide 7 days
SW-846 Method 9010 Cyanide 14 days
EPA Method 300 Nitrate/Sulfate 48 hours/28 days
EPA Method 405.1 BOD 48 hours
EPA Method 410.4 COD 28 days
EPA Method 365.4 Phosphorous 28 days
3.0 LABORATORY QUALITY CONTROL REVIEW AS Laboratory analyzed at least one internal blank for each method, where applicable.
AS Laboratory blank is interference-free.

 Lab Blank: Antimony @ 0.403 ug/L (J)
AS Surrogate recoveries are provided for each analytical method, where applicable. AS Surrogate recoveries for each method are within the acceptable limits (i.e., at least
50% of the surrogates were within range).
AS MS/MSD/LCS data results are provided for each analytical method.
AS MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at
least 1 of the 3 were within range).

 The spike recovery of Benzene was outside of control limits for the 8260B MSD sample. The QC batch was approved based on acceptable LCS recovery of this
analyte.
4.0 ANALYTE LISTS/METHODS
AS The proper number of constituents are present for each analyte list as identified
above (including detects where applicable).
AS Proper EPA SW-846 analytical methods were used for analysis.

GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 4
5.0 DATA REPORTING

AS All analytical reporting associated with the event was performed by the contracted lab.
AS Trip, field and/or equipment, and laboratory blank results have all been reported. All
detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been ‘flagged’ with a ‘B’ where detected in other samples as appropriate
and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 10X for commonly detected laboratory contaminants-acetone, methylene chloride and phthalates), list below with
explanation if flags should be removed. If flags need to be added for samples, also list below.

 B-flags for Antimony: MW-1
AS It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of
the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0
should be reported as 10). Those that have been diluted are listed below with the dilution factor.

AS The report provides the reporting limit for each constituent.
AS The results were reported at or below their proper reporting limits (i.e., MDLs with
SWSLs reported). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting
limit error is due to dilutions.
AS No organic constituents were reported above their respective SWSLs, and no
inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points.

 Antimony (GWPS = 1 ug/L) o MW-7 @ 2.51 ug/L (J)
 Arsenic ( NC 2L = 10 ug/L) (EPA MCL = 10 ug/L ) (SWSL = 10 ug/L) o MW-4 @ 10.3 ug/L

 Barium (NC 2L = 700 ug/L) (EPA MCL = 2000 ug/L) (SWSL = 100 ug/L) o MW-1 @ 3940 ug/L
 Chromium (NC 2L = 10ug/L) (SWSL = 10 ug/L) o MW-1 @ 66.8 ug/L
o MW-2 @ 13.5 ug/L
 Cobalt (GWPS = 1 ug/L) o MW-2 @ 1.71 ug/L (J) o MW-5 @ 3.49 ug/L (J)
 Copper (SWSL – 10 ug/L) o MW-2 @ 26.9 ug/L
GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 4 of 4

 Nickel (SWSL = 50 ug/L)
o MW-1 @ 57.7 ug/L o MW-2 @ 65.2 ug/L

 Silver (SWSL = 10 ug/L)
o MW-8 @ 16.9 ug/L
 Vanadium (NC 2L = 0.3 ug/L) (SWSL = 25 ug/L) o MW-2 @ 2.33 ug/L (J)
o MW-3 @ 2.07 ug/L (J) o MW-4 @ 2.15 ug/L (J)
o MW-5 @ 1.56 ug/L (J) o MW-8 @ 2.62 ug/L (J)
o MW-9 @ 3.38 ug/L (J)
 Zinc (SWSL = 10 ug/L) o MW-1 @ 11.3 ug/L
o MW-4 @ 20.6 ug/L o MW-5 @ 14.6 ug/L
AS No inorganic or organic constituents were detected in a well or surface water point at
quantified concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).
AS Other report issues/Communications with laboratory/etc.:
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Page 1 of 1
GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 3
Project Name: WI – South Wake LF (Leachate)
Project Reference Number: 0739-603915.100
Sampling Event Date: October 05, 2015
Review Date: October 23, 2015 Initials: TM
Report #: C512608
Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a
brief explanation should follow the applicable item.

Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain-of-custody form, and laboratory provided sample group quality assurance and quality control data for the
above referenced sample group to identify potential bias or inaccuracy, in general accordance
with the following United States Environmental Protection Agency documents:
• Region III Modifications to Functional Guidelines for Organic Data Review Multi-Media, Multi-Concentration, September 1994;
• Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and
• Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July
1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility List (.500 Rules)
NC C & D List (New Rules)
____ NC Appendix I
NC Appendix I + Detects
NC Appendix II
_ NC Subtitle D Leachate List
Other: NC leachate parameter list (includes NC Appendix I, BOD, COD, total phosphorus,
nitrate and sulfate) and additional parameters per POTW permit
1.0 CHAIN OF CUSTODY (COC) REVIEW
TM COC was properly signed by all parties. TM Correct project name and number are on the form.

 Project number not present on form
TM Sample receipt condition at laboratory was acceptable.
TM Each sample and blank submitted for analysis appears in the report.
GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 3

 Leachate Effluent, Leachate Effluent (Grab), and the Low Level Mercury Blank sampled per
POTW permit and not included in lab report.
2.0 SAMPLE HOLDING TIMES

TM Holding times for extraction and/or analysis were met for each analytical method (see below for reference).

Review Criteria Method Analytes Holding Time
SW-846 Method 8260 and 8011 VOCs 14 days
SW-846 Methods 8270, 8080,
8081, 8082, and 8151
SVOCs, PCBs,
pesticides and herbicides
7 days for extraction, 40 days
from extraction for analysis
SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements)
SW-846 Method 7470 Mercury 28 days
SW-846 Method 376.1 Sulfide 7 days
SW-846 Method 9010 Cyanide 14 days
EPA Method 300 Nitrate/Sulfate 48 hours/28 days
EPA Method 405.1 BOD 48 hours
EPA Method 410.4 COD 28 days
EPA Method 365.4 Phosphorous 28 days

3.0 LABORATORY QUALITY CONTROL REVIEW
TM Laboratory analyzed at least one internal blank for each method, where applicable.

TM Laboratory blank is interference-free.
TM Surrogate recoveries are provided for each analytical method, where applicable. TM Surrogate recoveries for each method are within the acceptable limits (i.e., at least
50% of the surrogates were within range).
TM MS/MSD/LCS data results are provided for each analytical method.
TM MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at
least 1 of the 3 were within range).

 The spike recoveries of Total Phosphorous and Sulfate were outside of control limits for the
MS and/or MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes.

4.0 ANALYTE LISTS/METHODS
TM The proper number of constituents are present for each analyte list as identified
above (including detects where applicable).

GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 3
TM Proper EPA SW-846 analytical methods were used for analysis.

5.0 DATA REPORTING
TM All analytical reporting associated with the event was performed by the contracted lab.

TM Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if
any, have been ‘flagged’ with a ‘B’ where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 10X for commonly detected
laboratory contaminants-acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also
list below.
TM It is clear from the laboratory report that samples have or have not been diluted during
analysis, and if the samples have been diluted, the result is reported as a multiple of
the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the
dilution factor.

 The 6020A analysis of antimony and thallium were processed at a dilution due to matrix
interference resulting in elevated reporting limits.
 Influent Leachate:
o Antimony, selenium, and thallium 10x o BOD and Sulfate 10x
o Phosphorous 3.02x o COD 20X
o VOCs 50x
TM The report provides the reporting limit for each constituent. TM The results were reported at or below their proper reporting limits (i.e., MDLs with
SWSLs reported). Those that are not reported correctly are listed below (by
constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions.
N/A No organic constituents were reported above their respective SWSLs, and no inorganic or organic constituents were reported above their respective NC 2L Drinking
Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points.
N/A No inorganic or organic constituents were detected in a well or surface water point at
quantified concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).
TM Other report issues/Communications with laboratory/etc.:

APPENDIX C
STATISTICAL EVALUATION WORKSHEETS AND SUMMARY TABLE

Golder Associates NC, Inc.
5B Oak Branch Drive
Greensboro, NC 27407 USA
[phone] - Phone
[phone] - Fax