3402_ForsythHanesMill_GWMR_DIN27746_20170109

SECOND SEMI-ANNUAL 2016
SAMPLING EVENT
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina

Submitted To:

Winston-Salem/Forsyth County City/County Utilities Commission 325 Hanes Mill Road
Winston-Salem, NC 27105 USA

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

January 2017 0939-668716
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Golder Associates NC, Inc. 5B Oak Branch Drive Greensboro, NC. 27407 USA Tel: [phone] Fax: [phone] www.golder.com
Golder Associates: Operations in Africa, Asia, Australasia, Europe, North America and South America
January 9, 2017 0939-668716
Ms. Jackie Drummond
North Carolina Department of Environmental Quality Division of Waste Management - Solid Waste Section
2090 US Highway 70 Swannanoa, NC 28778
828-296-4706
RE: WATER QUALITY MONITORING REPORT, SECOND SEMI-ANNUAL 2016 SAMPLING EVENT HANES MILL ROAD LANDFILL, PERMIT NO. 34-02 WINSTON-SALEM, NORTH CAROLINA
Dear Jackie:
On behalf of Winston-Salem/Forsyth County City/County Utilities Commission (CCUC), Golder Associates NC, Inc. (Golder) is submitting the enclosed Water Quality Monitoring Report, which documents the
results of the September 13 - 16, 2016, compliance monitoring event at the closed unlined landfill, the closed Subtitle D landfill, and the active Subtitle D landfill at the above-referenced facility.
At the closed unlined landfill, two inorganic constituents (barium and cobalt) were detected at concentrations above their respective Solid Waste Section Limits (SWSLs) and applicable groundwater
standards in samples from one or more downgradient monitoring wells during the September 2016 event. A 14-day notification and alternate source demonstration (ASD) were submitted under separate cover to
address these above-standard concentrations. Vanadium and cobalt were also detected at concentrations above their respective groundwater standards, but below the SWSLs, in samples from one
or more downgradient wells. Because the concentrations were estimated below the SWSLs, no further action is warranted.
Eight NC Appendix I volatile organic constituents (VOCs) (benzene; 1,1-dichloroethane; 1,4-dichlorobenzene; 1,2-dichloropropane; cis-1,2-dichloroethene; tetrachlorothene; trichloroethene; and
vinyl chloride) were detected at concentrations that exceeded their respective SWSLs and NC 2L Standards in samples from one or more downgradient wells during the September 2016 event.
Constituents 1,2-dichloroethane and vinyl chloride were reported at concentrations that exceeded the groundwater standards, but were below the SWSLs, in samples from one or more downgradient wells.
The concentrations of VOCs in groundwater samples from the closed unlined landfill are generally consistent with historical data.
At the closed Subtitle D landfill, three NC Appendix I inorganic constituents (arsenic, chromium and cobalt) were detected above their respective SWSLs and applicable groundwater standards in samples
from one or more downgradient monitoring wells during the September 2016 event. A 14-day notification and ASD were submitted under separate cover to address these above-standard concentrations.
Vanadium was detected at concentrations below the SWSL, but above the groundwater standard, in samples from one or more downgradient wells. Because the concentrations were below the SWSLs, no
further action is warranted. No NC Appendix I VOCs were detected in groundwater samples above applicable groundwater standards during this event at the closed Subtitle D facility.
At the active Subtitle D landfill, one NC Appendix I inorganic constituent (cobalt) was reported at a concentration above the SWSL and applicable groundwater standard in the groundwater sample from one
downgradient well during the September 2016 event. A 14-day notification and ASD were submitted under separate cover to address this above-standard concentration. Vanadium and cobalt were reported
at concentrations above the applicable groundwater standards, but below their SWSLs, in samples from one or more downgradient wells. Because the concentrations are below the SWSLs, no further action is
January 2017 i 0939-668716

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 .................................................................................................................. 3
2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION ............................................... 4
2.1 Visual Inspection Program ........................................................................................................... 4
2.2 Well Networks and Groundwater Elevation Measurements ........................................................ 4
2.3 September 2016 Groundwater and Surface Water Monitoring Event ......................................... 5
2.4 Laboratory Analysis Program ....................................................................................................... 6
2.5 September 2016 Sampling Results ............................................................................................. 6
2.5.1 Closed Unlined Landfill ............................................................................................................ 6
2.5.2 Closed Subtitle D Landfill ......................................................................................................... 7
2.5.3 Active Subtitle D Landfill .......................................................................................................... 7
3.0 LABORATORY AND FIELD QA/QC ................................................................................................ 8
4.0 DATA EVALUATION ........................................................................................................................ 8
4.1 September 2016 Groundwater and Surface Water Quality Standard Comparisons ................... 8
4.1.1 Closed Unlined Landfill ............................................................................................................ 8
4.1.2 Closed Subtitle D Landfill ......................................................................................................... 9
4.1.3 Active Subtitle D Landfill ........................................................................................................ 10
5.0 CONCLUSIONS ............................................................................................................................. 10
6.0 REFERENCES ............................................................................................................................... 10
Tables
Table 1 Historical Static Water Level Data for the Closed Unlined Landfill Table 2 Historical Static Water Level Data for the Closed Subtitle D Landfill
Table 3 Historical Static Water Level Data for the Active Subtitle D Landfill Table 4 Summary of Estimated Horizontal Flow Velocities
Table 5 Summary of Well Construction Information Table 6 Summary of Detected Constituents in Monitoring Wells at the Closed Unlined Landfill
Table 7 Summary of Field Parameters from Monitoring Wells at the Closed Unlined Landfill Table 8 Summary of Detected Constituents in Surface Water Monitoring Point
Table 9 Summary of Field Parameters from Surface Water Monitoring Points Table 10 Summary of Detected Constituents in Monitoring Wells at the Closed Subtitle D Landfill
Table 11 Summary of Field Parameters for Monitoring Wells at the Closed Subtitle D Landfill Table 12 Summary of Detected Constituents in Monitoring Wells at the Active Subtitle D Landfill
Table 13 Summary of Field Parameters for Monitoring Wells at the Active Subtitle D Landfill Table 14 Summary of Detected Constituents and Field Parameters in Leachate
Drawings
Drawing 1 September 13, 2016, Groundwater Surface Contour Map
Appendices
Appendix A Groundwater and Surface Water Sampling Logs
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Appendix B September 2016 Groundwater, Surface Water, and Leachate Certificate-of-Analysis, Chain-of-Custody Forms and Laboratory Data Review

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1.0 INTRODUCTION
This report summarizes the monitoring results from the September 13 - 16, 2016, groundwater and
surface water sampling and analysis event at the Hanes Mill Road Landfill in Winston-Salem, North
Carolina (NC) in accordance with Title 15A of the NC Administrative Code (NCAC) Subchapter 13B.1632
and NCAC Subchapter 13B.0544. The Hanes Mill Road Landfill, which comprises a closed, unlined
municipal solid waste (MSW) landfill; a closed Subtitle D MSW landfill; and an active Subtitle D MSW
landfill, is maintained by the Winston-Salem/Forsyth County City/County Utilities Commission (CCUC)
under Permit No. 34-02 issued by the NC Department of Environmental Quality (DEQ, formerly
Department of Environment and Natural Resources).
1.1 Site Description and Background
The location of the facility is shown on the inlay on Drawing 1. As presented, the Hanes Mill Road Landfill
is located within the boundaries and jurisdiction of the City of Winston-Salem off Hanes Mill Road. The
CCUC operates an approximately 500-acre landfill facility that consists of a closed unlined MSW facility, a
closed Subtitle D MSW facility, and an active Subtitle D MSW facility. The facility has been in operation
since 1972 under Permit Number 34-02. The closed facility operated as an unlined unit until 1995;
between 1995 and 2005, the unit operated as a Subtitle D lined unit that ‘piggy-backed’ over the unlined
facility. The unlined and ‘piggy-backed’ areas were closed in 2005. The CCUC currently operates a
Subtitle D facility west of the closed unit. The unlined MSW facility is subject to Assessment Monitoring
and Corrective Action in accordance with .1634 through .1637 of the Solid Waste Management Rules
(SWMR) and the Transition Plan for the facility. The closed Subtitle D facility and the active Subtitle D
MSW facility are subject to water quality monitoring in accordance with the Detection Monitoring Program
(.1633 of the SWMR).
The landfill is bounded to the south by industrial development, to the north, west, and southwest by
residential subdivisions and undeveloped wooded properties, and to the east by U.S. 52. Topographic
relief at the landfill ranges from approximately 790 to 940 feet above mean sea level. Surface drainage
from the facility is predominantly radial toward several streams along the northern and southern portions
of the property that flow into Grassy Creek, which transects the property from north to south and
separates the closed landfill and the active landfill. Grassy Creek drains into Mill Creek located south of
the Hanes Mill Road Landfill.
1.2 Compliance Monitoring History
The CCUC monitors water quality at the closed, unlined MSW facility by monitoring 10 downgradient
monitoring wells (OW-3, OW-4, OW-6, OW-7DA, OW-10D, OW-11, OW-12, OW-13D, OW-14D, and
OW-17D) semi-annually. The upgradient monitoring well and surface water sampling points are shared
with the ‘piggy-backed’ closed Subtitle D unit as described below. According to correspondence from NC
DEQ dated March 4, 2010, NC Appendix II parameters should be monitored once every two years with
the next NC Appendix II event being conducted during the spring 2017 event. During the other semi-
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annual events, analysis of NC Appendix I plus ‘detects’ is required. Based on the March 4, 2010,
correspondence, the NC Appendix II detects include mercury, tin, dichlorodifluoromethane, and
naphthalene. According to correspondence from NC DEQ dated September 22, 2008, approval was
granted to reduce the number of, and sampling frequency for, monitored natural attenuation (MNA)
parameters and wells to include nitrate, sulfate, chloride, and total organic carbon for wells MW-1RR,
OW-3, OW-4, OW-10D, OW-12, OW-14D, and OW-17D. Every third year (next events in 2018),
methane, ethane, and ethene must also be analyzed semi-annually for MNA wells, and every fifth year
(events in March and September 2016), hydrogen, sulfide, alkalinity, and volatile fatty acids must also be
analyzed semi-annually.
Based on recent sampling results for the unlined MSW facility, several volatile organic constituents
(VOCs) continue to be detected at levels above applicable groundwater standards in samples from one or
more monitoring wells. Based on these documented VOC exceedances of applicable groundwater
standards, the CCUC initiated corrective action.
The CCUC monitors water quality at the closed Subtitle D MSW facility by monitoring one upgradient
monitoring well (MW-1RR), and six downgradient monitoring wells (MW-6, MW-6D, MW-7, MW-8, MW-9,
and MW-11) semi-annually. Due to historical detections of 1,1-dichloroethene in MW-8 at concentrations
above the groundwater standard, Assessment Monitoring was initiated for this facility and the first
complete Assessment Monitoring background event was conducted in October 2009. The March 2011
event was the fourth of four background events for Assessment Monitoring. The background results
indicated that no NC Appendix II constituents were detected above applicable groundwater protection
standards in the groundwater at the closed, Subtitle D facility, with the exception of chromium, cobalt, and
vanadium, which appear to be representative of background conditions. Per NCAC Subchapter 13B
Rule.1634(e), the closed Subtitle D facility was to remain in the Assessment Monitoring Program until two
consecutive NC Appendix II sampling events indicate that concentrations of all NC Appendix II
groundwater concentrations below applicable standards. The September 2012 event was the second of
these events; the results indicated that no Appendix II constituents were above background. Therefore,
the closed Subtitle D facility reverted to Detection Monitoring. Two upstream surface water monitoring
points (NBC-1 and SW-3) and two downstream monitoring points (NBC-2 and SW-4) are used to monitor
both of the closed units and are sampled semi-annually for analysis of NC Appendix I parameters.
The CCUC monitors water quality at the active Subtitle D facility by testing one upgradient monitoring well
(MW-12), and seven downgradient monitoring wells (MW-13, MW-14, MW-15, MW-16, MW-17, MW-18,
MW-19) semi-annually. Three former piezometers converted to monitoring wells (MW-20,
MW-21, and MW-22) were added to the monitoring network as part of the Cell 3/4 expansion. Two
surface water points (upstream point SW-1 and downstream point SW-2) are used to monitor the active
facility. Samples from the wells and surface water monitoring points are analyzed for NC Appendix I
VOCs. A composite leachate sample is collected semi-annually from the two leachate holding tanks for
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both lined units and analyzed for the approved NC leachate parameter list plus other required
parameters.
1.3 Hydrogeologic Setting
Geologically, the facility is located within the Carolina Slate Belt of the central Piedmont Physiographic
Province of North Carolina (NCGS, 1985 and 2004). The Carolina Slate Belt is comprised of late
Proterozoic to Cambrian volcanic and sedimentary rocks that have been metamorphosed to lower
greenschist facies by plutons (Butler and Secor, 1991). The facility is underlain primarily by the Ashe
Formation, which consists of fine grained, thinly layered sulfidic biotite-muscovite gneiss interlayered with
mica schist and phyllite. The Ashe Formation also consists of amphibolite and garnet amphibolite (HDR,
2003).
The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of
partially weathered, fractured, metamorphic intrusive rock. Groundwater occurs at depths ranging from
approximately 3 to 50 feet below grade. Depth-to-water measurements obtained during the September
2016 monitoring event are summarized in Tables 1 through 3 and were used to prepare a groundwater
surface contour map presented as an overlay on Drawing 1.
As presented, the groundwater flow in the uppermost aquifer beneath the closed landfills is generally
toward the southwest toward Grassy Creek, which separates the closed facility from the active facility.
Groundwater flow in the uppermost aquifer beneath the active landfill is semi-radial, flowing primarily east
toward Grassy Creek, but also north and south to tributaries of Grassy Creek. The groundwater contour
map and interpreted flow directions are generally consistent with previously submitted groundwater
contour maps and flow directions.
Based on the September 13, 2016, groundwater surface contour map, the average hydraulic gradient in
the shallow aquifer underlying the closed landfills was calculated to be approximately 0.019 foot/foot
(Table 4). The hydraulic gradient underlying the active landfill was calculated to be approximately 0.043
foot/foot (Table 4). The hydraulic gradient calculations are consistent with values from previous reports.
A hydraulic conductivity of 5.68E-04 centimeters/second is used based on an average of previous
hydraulic conductivities calculated for the unconsolidated upper aquifer (HDR, 2003). An estimated
effective porosity of 0.20 was used for the shallow aquifer to represent a range from saprolite to fractured
rock (HDR, 2003).
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
January 2017 4 0939-668716

where Vgw = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal
hydraulic gradient, and ne = effective porosity.
The average estimated linear groundwater flow velocity under the closed landfills is approximately 56
feet/year and the average estimated linear groundwater flow velocity under the active landfill is
approximately 126 feet/year (Table 4). The range of groundwater flow is expected to vary depending on
the hydrogeologic unit in which it occurs. However, 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 for the September 2016 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 by sampling personnel at the Hanes Mill Road Landfill. 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 units. During the September 2016 compliance monitoring event, no physical
indicators of a potential release were observed in the vicinity of the waste management areas.
2.2 Well Networks and Groundwater Elevation Measurements
The network of groundwater monitoring wells at the closed unlined landfill consists of one upgradient
monitoring well (MW-1RR) and 10 downgradient monitoring wells (OW-3, OW-4, OW-6, OW-7DA,
OW-10D, OW-11, OW-12, OW-13D, OW-14D, and OW-17D) and are monitored during each semi-annual
monitoring event. Four surface water monitoring points (NBC-1, NBC-2, SW-3, and SW-4) are monitored
semi-annually. Monitoring well and surface water point locations are shown on Drawing 1. Monitoring
wells OW-3, OW-4, OW-6, OW-11, and OW-12 are screened in the shallow, unconfined aquifer.
Monitoring wells MW-1RR, OW-7DA, OW-10D, OW-13D, OW-14D, and OW-17D are screened in
fractured bedrock. A summary of well construction details is provided in Table 5.
The network of groundwater monitoring wells at the closed Subtitle D landfill consists of six downgradient
monitoring wells (MW-6, MW-6D, MW-7, MW-8, MW-9, and MW-11). The upgradient monitoring well
(MW-1RR) and surface water sampling points (NBC-1, NBC-2, SW-3, and SW-4) are shared by the
closed unlined landfill. Monitoring wells MW-6, MW-7, MW-8, and MW-11 are screened in the shallow,
unconfined aquifer. Monitoring wells MW-6D and MW-9 are screened across saprolite and partially
weathered rock. A summary of well construction details is provided in Table 5.
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The network of groundwater monitoring wells at the closed Subtitle D landfill consists of one upgradient
monitoring well (MW-12), and 10 downgradient monitoring wells (MW-13, MW-14, MW-15, MW-16,
MW-17, MW-18, MW-19, MW-20, MW-21, and MW-22). Two surface water points (SW-1 and SW-2) are
used to monitor the active facility. Monitoring wells MW-13, MW-14, MW-15, MW-16, MW-17, MW-18,
MW-19, MW-20, and MW-22 are screened in the shallow, unconfined aquifer. Monitoring well MW-21 is
screened in fractured bedrock. Upgradient monitoring well MW-12 is screened in fractured bedrock. A
summary of well construction details is provided in Table 5.
Depth-to-water measurements were recorded to the nearest 0.01 foot prior to initiating groundwater
purging and sampling activities. A summary of the historical water level elevations are presented in
Tables 1 through 3. As presented, the data indicate that the hydraulic head level in the uppermost aquifer
beneath the facility is fairly consistent, with an average variation of approximately 1.5 feet.
2.3 September 2016 Groundwater and Surface Water Monitoring Event
Golder visited the facility on September 13 - 16, 2016, to purge and sample the 28 monitoring wells,
sample 6 surface water monitoring points, and sample the facility leachate at the closed and active
landfills. Depth-to-water measurements were obtained from the monitoring wells to the nearest 0.01 foot
using an electronic water level indicator prior to purging the wells.
Monitoring wells were purged and sampled with a combination of portable and dedicated pumps and
micropurge procedures. Measurements of pH, specific conductivity, dissolved oxygen, oxidation-
reduction potential, temperature, and turbidity were recorded on approximately 3- to 5-minute intervals
during the purge, 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 water, up to a
maximum purge rate of 500 milliliters per minute. Purging was continued until stabilization was indicated
by the field 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.
The required groundwater samples were collected directly from the pump discharge lines in the labeled,
laboratory-supplied, pre-preserved sample containers after purging was completed based on stabilization
of all field 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 location, sampling equipment, sampling method, field observations, and field
parameters.
The surface water samples were collected directly from stream flow, by lowering the sample containers
into the stream with the opening facing away from the current flow, taking care to prevent the overflow of
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the sample containers and to minimize sample-induced turbidity. Measurements of pH, specific
conductivity, dissolved oxygen, oxidation-reduction potential, temperature, and turbidity were recorded
during the collection of the surface water samples.
A composite leachate sample was collected from Tank A and Tank B. The leachate holding tanks collect
leachate from both lined facilities. Measurements of pH, specific conductivity, and temperature were
recorded during the collection of the leachate sample.
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 location, sampling method, field observations, and water quality measurements.
2.4 Laboratory Analysis Program
The groundwater, surface water, and leachate samples were shipped to Environmental Conservation
Laboratories, Inc. (ENCO) of Cary, NC and Pace Analytical Energy Services, LLC of Pittsburgh,
Pennsylvania under chain-of-custody control, and were received within the dates of September 14 - 20,
2016. The samples were received at the laboratory in good condition and properly preserved.
Groundwater samples from OW-6, OW-7DA, OW-11, and OW-13D at the closed unlined landfill were
analyzed for the NC Appendix I list of parameters plus ‘detects,’ which include mercury, tin, naphthalene,
and dichlorodifluoromethane. Groundwater samples from MW-1RR, OW-3, OW-4, OW-10D, OW-12,
OW-14D, and OW-17D at the closed unlined landfill were analyzed for the NC Appendix I list of
parameters plus ‘detects’ and required MNA indicator parameters. Groundwater samples from the
Subtitle D landfills (active and closed) were analyzed for the NC Appendix I list of parameters. Surface
water samples were analyzed for the NC Appendix I list of parameters. The leachate sample was
analyzed for the NC leachate list of parameters and other permit-required parameters.
2.5 September 2016 Sampling Results
Analytical results from groundwater, surface water, and leachate samples from the September 2016 water
quality monitoring event are presented in the following sections.
2.5.1 Closed Unlined Landfill
Analytical results for the September 2016 groundwater samples at the closed unlined landfill are
summarized in Table 6. Field parameters for the groundwater samples at the closed unlined landfill are
summarized in Table 7. The laboratory certificates-of-analysis, chain-of-custody form, and laboratory
data reviews for the sampling event are included in Appendix B.
At the closed unlined landfill, two inorganic constituents (barium and cobalt) were detected at
concentrations above their respective Solid Waste Section Limits (SWSLs) in samples from one or more
downgradient monitoring wells during the September 2016. Ten VOCs (benzene; chlorobenzene;
dichlorodifluoromethane; 1,4-dichlorobenzene; 1,1-dichloroethane; cis-1,2-dichloroethene;
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1,2-dichloropropane; tetrachloroethene; trichloroethene; and vinyl chloride) were detected above their
respective SWSLs in samples from one or more downgradient monitoring wells at the closed unlined
landfill during the September 2016 event, as they have been during previous sampling events.
One NC Appendix I inorganic constituent, zinc, was detected above the SWSL in downstream surface
water monitoring point SW-4 during the September 2016 event. No NC Appendix I VOCs were detected
above the SWSLs in samples from surface water monitoring points associated with the closed unlined
landfill during the September 2016 event. The surface water analytical results are summarized in Table 8
and the field parameters are summarized in Table 9.
2.5.2 Closed Subtitle D Landfill
Analytical results for the September 2016 groundwater samples at the closed Subtitle D landfill are
summarized in Table 10. Field parameters for the groundwater samples at the closed Subtitle D landfill
are summarized in Table 11. The laboratory certificates-of-analysis, chain-of-custody form, and
laboratory data reviews for the sampling event are included in Appendix B.
Four NC Appendix I inorganic constituents (arsenic, barium, chromium, and cobalt) were detected above
their respective SWSLs in samples from one or more downgradient monitoring wells during the
September 2016 event. One NC Appendix I VOC, 1,1-dichloroethene, was detected above its SWSL in
one downgradient well at the closed Subtitle D landfill during the September 2016 event as it has been
during previous events.
One NC Appendix I inorganic constituent, zinc, was detected above the SWSL in the surface water
monitoring points for this facility during the September 2016 event. No NC Appendix I VOCs were
detected above the SWSLs in samples from surface water monitoring points associated with the closed
unlined landfill during the September 2016 event. The surface water analytical results are summarized in
Table 8 and the field parameters are summarized in Table 9.
The leachate sampling results are summarized in Table 14. Concentrations of detected constituents were
generally consistent with historical data.
2.5.3 Active Subtitle D Landfill
Analytical results for the September 2016 groundwater samples at the active Subtitle D landfill are
summarized in Table 12. Field parameters for the groundwater samples at the active Subtitle D landfill
are summarized in Table 13. The laboratory certificates-of-analysis, chain-of-custody form, and
laboratory data reviews for the sampling event are included in Appendix B.
At the active Subtitle D landfill, three NC Appendix I inorganic constituents (barium, cobalt, and zinc) were
detected at concentrations above the SWSLs in samples from one or more downgradient monitoring wells
during the September 2016 event. No NC Appendix I organic constituents were detected in groundwater
samples above the SWSLs during this event at the active Subtitle D facility.
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As presented on Table 8, no NC Appendix I VOCs were detected above the SWSLs from surface water
points associated with the active Subtitle D landfill during the September 2016 event. The surface water
analytical results are summarized in Table 8 and the field parameters are summarized in Table 9.
The leachate sampling results are summarized in Table 14. Concentrations of detected constituents were
generally consistent with historical data.
3.0 LABORATORY AND FIELD QA/QC
A field blank was collected by Golder personnel as part of the September 2016 groundwater, surface
water, and leachate sampling event. In addition to the field blank, a laboratory-prepared trip blank
accompanied the volatile sample containers for the September 2016 sampling event to and from the
laboratory. ENCO analyzed the field blank for the NC Appendix I list of parameters plus mercury, tin,
dichlorodifluoromethane, and naphthalene and the trip blank for NC Appendix I VOCs plus
dichlorodifluoromethane, and naphthalene. Reviews of the laboratory data were performed by Golder
personnel and are presented in Appendix B.
Copper was detected at an estimated concentration in the field blank and barium was detected at an
estimated concentration in the lab blank. Based on data reviews performed by Golder, the concentration
of barium in the sample from OW-13D is considered blank-qualified. The concentrations of copper in the
following samples are considered blank-qualified: MW-1RR, OW-3, OW-10D, OW-12, MW-6, MW-7,
MW-8, MW-9, MW-11, MW-15, MW-16, MW-18, MW-19, MW-21, NBC-1, NBC-2, SW-4, and leachate.
4.0 DATA EVALUATION
The results of the data evaluations are presented in the following sections.
4.1 September 2016 Groundwater and Surface Water Quality Standard
Comparisons
The concentrations of detected NC Appendix I or NC Appendix II inorganic and organic constituents in
samples collected from monitoring wells at each landfill are to be compared to their applicable NC 2L
Water Quality Standards (NC 2L Standards) or Solid Waste Section Groundwater Protection Standards
(GWPS). Concentrations of NC Appendix I inorganic and organic constituents in samples collected from
surface water monitoring points are to be compared to applicable surface water standards. The results of
comparisons to groundwater and surface water quality standards are presented in the following sections.
4.1.1 Closed Unlined Landfill
As presented in Table 6, barium and cobalt were detected in the sample from OW-3 at concentrations
above their respective SWSLs and applicable groundwater standards at the closed unlined facility. A
14-day notification and alternate source demonstration (ASD) were submitted under separate cover to
address these above-standard concentrations (Golder, 2016). The ASD provided data to support that
barium and cobalt concentrations are naturally occurring and no further action is warranted.
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Cobalt was also detected at a concentration below the SWSL, but above the GWPS, in the sample from
downgradient well OW-4. Vanadium was detected at concentrations below the SWSL, but above the
GWPS, in samples from upgradient well MW-1RR and downgradient wells OW-7DA, OW-10D, OW-11,
OW-12 and OW-14D. Because these concentrations of cobalt and vanadium are estimated below the
SWSL, no further action is warranted for these detections.
Eight NC Appendix I VOCs (benzene; 1,4-dichlorobenzene; 1,1-dichloroethane; cis-1,2-dichloroethene;
1,2-dichloropropane; tetrachloroethene; trichloroethene; and vinyl chloride) were detected at
concentrations that exceeded their respective SWSLs and NC 2L Standards in samples from one or more
downgradient wells during the September 2016 event. Benzene and 1,4-dichlorobenzene were detected
in the samples from OW-3 and OW-4 at concentrations above their respective SWSLs and NC 2L
Standards. Constituent 1,1-dichloroethane was detected in the sample from OW-10D at a concentration
above its SWSL and NC 2L Standard. Constituents cis-1,2-dichloroethene and 1,2-dichloropropane were
detected in the sample from OW-3 at concentrations above their respective SWSLs and NC 2L
Standards. Tetrachlorothene and trichloroethene were detected in the samples from OW-4 and OW-10D
at concentrations above their respective SWSLs and NC 2L Standards. Trichloroethene was also
detected at OW-17D above the SWSL and NC 2L Standard. Vinyl chloride was detected at
concentrations above the SWSL and the NC 2L Standard at OW-3. Constituent 1,2-dichloroethane was
detected at an estimated concentration above the NC 2L, but below the SWSL, in the sample from OW-3.
Vinyl chloride was detected at an estimated concentrations above the NC 2L, but below the SWSL, in the
samples from OW-4 and OW-10. The concentrations of organic constituents in groundwater samples
from the closed unlined landfill are generally consistent with historical data.
As presented in Table 8, no NC Appendix I inorganic or organic constituents were detected above their
applicable surface water standards in surface water monitoring points associated with the closed unlined
landfill during the September 2016 event.
4.1.2 Closed Subtitle D Landfill
As presented in Table 10, three NC Appendix I inorganic constituents (arsenic, chromium, and cobalt)
were detected above their respective SWSLs and applicable groundwater standards in samples from one
or more downgradient monitoring wells during the September 2016 event at the closed Subtitle D facility.
Arsenic was detected above the SWSL and NC 2L in the sample from MW-6. Chromium was detected
above the SWSL and NC 2L Standard in the sample from MW-11 and cobalt was detected at a
concentration above the SWSL and GWPS in the samples from MW-6 and MW-7. A 14-day notification
and ASD were submitted under separate cover to address these above-standard concentrations (Golder,
2016). The ASD provided data to support that arsenic, chromium, and cobalt are naturally occurring and
no further action is warranted.
Vanadium was detected at concentrations below the SWSL, but above the NC 2L Standard, in samples
from upgradient well MW-1RR and downgradient wells MW-6D and MW-8. Because these
January 2017 10 0939-668716

concentrations of vanadium are below the SWSL, no further action is warranted for these estimated
detections.
No NC Appendix I VOCs were detected at concentrations that exceeded the SWSL and NC 2L Standards
during the September 2016 event at the closed Subtitle D landfill. As presented in Table 8, no NC
Appendix I inorganic or organic constituents were detected above their applicable surface water
standards in surface water monitoring points associated with the closed Subtitle D landfill during the
September 2016 event.
4.1.3 Active Subtitle D Landfill
As presented in Table 12, one NC Appendix I inorganic constituent, cobalt, was detected above the
SWSL and applicable groundwater standard in the sample from downgradient well MW-19 during the
September 2016 event. A 14-day notification and ASD were submitted under separate cover to address
this above-standard concentration (Golder, 2016). The ASD provided data to support that cobalt is
naturally occurring and no further action is warranted.
Cobalt was also detected at concentrations below the SWSL, but above the NC 2L Standard, in samples
from downgradient wells MW-21 and MW-22. Vanadium was detected at concentrations above the
SWSL, but below the NC 2L Standard, in samples from upgradient well MW-12 and downgradient wells
MW-13, MW-15, MW-16, MW-17, MW-18, and MW-21. Because these concentrations of cobalt and
vanadium are below their respective SWSLs, no further action is warranted for these estimated
detections.
No NC Appendix I VOCs were detected above the SWSLs and applicable groundwater standards during
the September 2016. As presented in Table 8, no NC Appendix I inorganic or organic constituents were
detected at concentrations that exceeded the applicable surface water standards in samples from surface
water monitoring points associated with the active Subtitle D landfill during the event.
5.0 CONCLUSIONS
Due to the continued presence of VOCs above applicable groundwater standards in monitoring wells
associated with the closed unlined landfill, the CCUC will continue to monitor the facility in accordance
with the requirements of the Corrective Action Plan. The CCUC will monitor the closed Subtitle D facility
and active Subtitle D facility in accordance with the Detection Monitoring Program, as outlined in Title 15A
NCAC 13B.1633. The next compliance monitoring event for this facility is tentatively scheduled for March
2017.
6.0 REFERENCES
Butler, J.R., and D.T. Secor, Jr., 1991. The Central Piedmont (Chapter 4) in J.W. Horton, Jr. and V.A.
Zullo, eds., The Geology of the Carolinas (Carolina Geological Society Fiftieth Anniversary Volume): The
University of Tennessee Press, pp. 2, 4, 24, 36, 44-45.
January 2017 11 0939-668716

Golder Associates NC, Inc. November 3, 2016. 14-Day Notification and Alternate Source Demonstration,
Hanes Mill Road Landfill, Permit No. 34-02, Winston-Salem, North Carolina.
HDR, November 2003. Assessment of Corrective Measures Report, Hanes Landfill, Winston-Salem,
North Carolina.
HDR, July 2008. Semi-Annual Monitoring Report; Spring 2008. Hanes Mill Road Sanitary Landfill,
Winston-Salem, North Carolina.
North Carolina Geologic Survey, 1985. Geologic Map of North Carolina
North Carolina Geologic Survey, 2004. Modified from 1991 Generalized Geologic Map (digital
representation
g:\projects\winston-salem-forsyth county\groundwater\wqmr\sept 2016\draft\draft_hanes_mill_2nd_semi-annual_wqmr_2016.docx

TABLES
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Monitoring Wells
TOC Elevation
(ft AMSL)
Date Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
11/06/06 854.92 41.9 811.52 8.61 802.94 6.43 807.72 19.4 --------802.37 4.32 794.50 5.64 799.79 6.62 799.83 4.12 795.40 5.07
03/19/08 853.80 43.02 ----------------------------------------
12/01/08 853.40 43.42 811.28 8.85 802.59 6.78 806.48 20.64 794.92 6.6 799.46 20.63 801.66 5.03 793.91 6.23 798.81 7.6 799.38 4.57 794.37 6.1
03/27/09 853.84 42.98 811.38 8.75 803.22 6.15 808.95 18.17 796.48 5.04 801.17 18.92 803.15 3.54 795.78 4.36 800.68 5.73 800.41 3.54 795.44 5.03
10/08/09 854.47 42.35 811.15 8.98 802.25 7.12 806.11 21.01 793.91 7.61 797.74 22.35 799.94 6.75 792.61 7.53 797.92 8.49 797.60 6.35 793.36 7.11
03/16/10 855.74 41.08 811.60 8.53 803.85 5.52 810.84 16.28 797.08 4.44 801.95 18.14 804.01 2.68 796.26 3.88 801.77 4.64 800.92 3.03 795.94 4.53
09/08/10 856.37 40.45 811.29 8.84 802.29 7.08 807.09 20.03 793.77 7.75 798.12 21.97 800.59 6.10 792.21 7.93 798.50 7.91 797.83 6.12 792.65 7.82
03/21/11 855.53 41.29 811.52 8.61 803.33 6.04 809.07 18.05 796.28 5.24 800.99 19.10 803.38 3.31 794.86 5.28 800.07 6.34 800.30 3.65 795.23 5.24
09/12/11 855.54 41.28 811.22 8.91 802.13 7.24 806.53 20.59 794.08 7.44 798.36 21.73 800.63 6.06 792.32 7.82 798.40 8.01 798.14 5.81 793.57 6.90
03/12/12 854.98 41.84 811.42 8.71 803.08 6.29 808.76 18.36 795.73 5.79 800.81 19.28 802.87 3.82 795.24 4.90 800.41 6.00 800.15 3.80 795.11 5.36
10/01/12 854.38 42.44 811.68 8.45 802.58 6.79 805.61 21.51 794.41 7.11 798.84 21.25 801.02 5.67 793.09 7.05 798.20 8.21 799.15 4.80 794.03 6.44
03/11/13 854.13 42.69 811.83 8.30 803.54 5.83 808.60 18.52 796.60 4.92 801.20 18.89 803.18 3.51 795.89 4.25 800.51 5.90 800.59 3.36 795.63 4.84
09/09/13 856.98 39.84 811.55 8.58 802.63 6.74 808.48 18.64 795.34 6.18 799.71 20.38 801.77 4.92 793.87 6.27 799.80 6.61 798.95 5.00 794.23 6.24
03/12/14 856.95 39.87 811.77 8.36 803.88 5.49 809.70 17.42 797.22 4.30 802.03 18.06 803.86 2.83 796.56 3.58 801.35 5.06 800.97 2.98 796.07 4.40
09/08/14 857.42 39.40 810.97 9.16 802.15 7.22 805.82 21.30 793.83 7.69 797.68 22.41 799.77 6.92 792.29 7.85 797.86 8.55 797.43 6.52 793.22 7.25
03/09/15 849.91 46.91 811.56 8.57 803.02 6.35 807.97 19.15 795.67 5.85 800.89 19.20 802.84 3.85 795.70 4.44 800.06 6.35 800.29 3.66 795.51 4.96
09/14/15 854.70 42.12 811.42 8.71 801.61 7.76 805.23 21.89 793.58 7.94 797.43 22.66 799.59 7.10 791.83 8.31 797.41 9.00 797.94 6.01 793.12 7.35
03/07/16 856.28 40.54 811.87 8.26 803.29 6.08 810.00 17.12 796.61 4.91 801.40 18.69 803.19 3.50 795.72 4.42 801.20 5.21 800.47 3.48 795.39 5.08
09/13/16 856.43 40.39 811.57 8.56 801.84 7.53 805.96 21.16 793.90 7.62 797.76 22.33 799.88 6.81 792.17 7.97 798.02 8.39 797.40 6.55 793.28 7.19
MEAN 855.04 41.78 811.48 8.65 802.79 6.58 807.72 19.40 795.26 6.26 799.74 20.35 801.87 4.82 794.16 5.98 799.49 6.92 799.32 4.63 794.53 5.94
MAXIMUM 857.42 46.91 811.87 9.16 803.88 7.76 810.84 21.89 797.22 7.94 802.03 22.66 804.01 7.10 796.56 8.31 801.77 9.00 800.97 6.55 796.07 7.82
MINIMUM 849.91 39.40 810.97 8.26 801.61 5.49 805.23 16.28 793.58 4.30 797.43 18.06 799.59 2.68 791.83 3.58 797.41 4.64 797.40 2.98 792.65 4.40
Notes:ft AMSL = feet above mean sea level
TOC = top of casing
MW = monitoring well
OW = observation well
820.09896.82 820.13 809.37 827.12 801.52 806.69 800.14 806.41 803.95 800.47
OW-17D
TABLE 1
Historical Static Water Level Data for the Closed Unlined Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
MW-1RR OW-3 OW-4 OW-6 OW-7DA OW-10D
Closed Unlined Landfill
OW-11 OW-12 OW-13D OW-14D
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Monitoring Wells
TOC Elevation
(ft AMSL)
Date Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
11/06/06 839.72 28.06 839.36 28.53 829.10 16.23 825.91 11 822.51 21.09 825.45 19.78
03/20/08 839.67 28.11 839.28 28.61 829.23 16.1 826.10 10.81 822.24 21.36 825.00 20.23
12/02/08 838.85 28.93 838.51 29.38 828.60 16.73 825.63 11.28 821.53 22.07 823.68 21.55
03/27/09 839.83 27.95 839.42 28.47 829.51 15.82 826.07 10.84 822.36 21.24 825.58 19.65
10/08/09 838.86 28.92 838.50 29.39 827.96 17.37 824.91 12.00 821.27 22.33 823.91 21.32
03/16/10 840.94 26.84 840.57 27.32 830.45 14.88 826.66 10.25 823.02 20.58 827.38 17.85
09/08/10 839.56 28.22 839.15 28.74 828.37 16.96 825.04 11.87 821.27 22.33 824.65 20.58
03/21/11 840.17 27.61 839.93 27.96 829.52 15.81 826.12 10.79 822.51 21.09 825.58 19.65
09/12/11 839.27 28.51 839.03 28.86 827.91 17.42 825.06 11.85 819.95 23.65 824.02 21.21
03/12/12 840.26 27.52 839.71 28.18 829.44 15.89 825.96 10.95 820.99 22.61 825.61 19.62
10/01/12 839.08 28.70 838.76 29.13 828.24 17.09 825.60 11.31 820.10 23.50 823.48 21.75
03/11/13 840.20 27.58 839.77 28.12 829.71 15.62 826.51 10.40 821.75 21.85 825.85 19.38
09/09/13 840.24 27.54 839.78 28.11 829.18 16.15 825.64 11.27 820.48 23.12 825.80 19.43
03/12/14 841.19 26.59 840.61 27.28 830.43 14.90 826.64 10.27 821.85 21.75 826.70 18.53
09/08/14 839.87 27.91 839.60 28.29 828.36 16.97 825.25 11.66 819.99 23.61 823.78 21.45
03/09/15 840.44 27.34 839.98 27.91 829.63 15.70 826.36 10.55 822.79 20.81 825.31 19.92
09/14/15 838.98 28.80 838.60 29.29 827.29 18.04 824.60 12.31 819.65 23.95 823.08 22.15
03/07/16 841.03 26.75 840.39 27.50 830.27 15.06 826.31 10.60 821.35 22.25 827.25 17.98
09/13/16 839.62 28.16 839.22 28.67 827.91 17.42 824.78 12.13 819.72 23.88 822.80 22.43
MEAN 839.88 27.90 839.48 28.41 829.01 16.32 825.74 11.17 821.33 22.27 825.00 20.23
MAXIMUM 841.19 28.93 840.61 29.39 830.45 18.04 826.66 12.31 823.02 23.95 827.38 22.43
MINIMUM 838.85 26.59 838.50 27.28 827.29 14.88 824.60 10.25 819.65 20.58 822.80 17.85
Notes:ft AMSL = feet above mean sea level
TOC = top of casing
MW = monitoring well
OW = observation well
MW-11
TABLE 2
Historical Static Water Level Data for the Closed Subtitle D Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
845.23
Closed Subtitle D Landfill
MW-6 MW-6D MW-7 MW-8 MW-9
867.78 867.89 845.33 836.91 843.60
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Monitoring Wells
TOC Elevation
(ft AMSL)
Date Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
03/27/09 877.03 62.02 800.86 19.55 795.18 19.35 794.22 9.10 793.11 5.47 796.35 4.83 800.40 8.12 804.41 6.94 ------------
10/08/09 877.51 61.54 798.90 21.51 793.83 20.70 792.85 10.47 791.23 7.35 795.01 6.17 800.18 8.34 804.25 7.10 ------------
03/16/10 877.81 61.24 801.99 18.42 795.82 18.71 795.07 8.25 793.87 4.71 796.87 4.31 800.65 7.87 804.93 6.42 ------------
09/08/10 879.54 59.51 799.46 20.95 793.73 20.80 792.67 10.65 790.91 7.67 795.48 5.70 799.92 8.60 804.02 7.33 ------------
03/21/11 879.69 59.36 801.10 19.31 794.22 20.31 793.51 9.81 793.14 5.44 796.57 4.61 800.43 8.09 804.31 7.04 819.74 12.17 845.58 44.82 801.85 13.85
09/12/11 878.84 60.21 799.21 21.20 794.04 20.49 792.68 10.64 791.09 7.49 795.39 5.79 800.01 8.51 803.97 7.38 817.42 14.49 844.65 45.75 800.84 14.86
03/12/12 878.25 60.80 800.61 19.80 794.97 19.56 793.93 9.39 792.76 5.82 796.56 4.62 800.32 8.20 804.33 7.02 819.12 12.79 843.83 46.57 802.06 13.64
10/01/12 877.41 61.64 798.93 21.48 794.42 20.11 794.21 9.11 791.59 6.99 796.07 5.11 800.08 8.44 804.14 7.21 817.82 14.09 843.89 46.51 800.29 15.41
03/11/13 877.09 61.96 800.79 19.62 795.39 19.14 794.34 8.98 793.19 5.39 796.58 4.60 801.48 7.04 804.48 6.87 816.30 15.61 843.15 47.25 802.21 13.49
09/09/13 876.82 62.23 799.95 20.46 794.65 19.88 793.45 9.87 791.96 6.62 792.10 9.08 800.30 8.22 804.15 7.20 818.53 13.38 844.50 45.90 801.48 14.22
03/12/14 878.10 60.95 801.13 19.28 796.17 18.36 795.49 7.83 793.93 4.65 797.06 4.12 800.90 7.62 805.09 6.26 821.76 10.15 845.42 44.98 802.82 12.88
09/08/14 879.89 59.16 798.67 21.74 794.10 20.43 792.72 10.60 791.01 7.57 795.50 5.68 800.10 8.42 804.10 7.25 817.41 14.50 847.11 43.29 800.25 15.45
03/09/15 879.86 59.19 800.37 20.04 795.40 19.13 794.39 8.93 793.53 5.05 796.80 4.38 800.63 7.89 804.55 6.80 820.34 11.57 845.55 44.85 802.10 13.60
09/14/15 878.54 60.51 798.25 22.16 793.66 20.87 792.36 10.96 790.68 7.90 795.17 6.01 799.81 8.71 804.12 7.23 817.24 14.67 844.52 45.88 799.68 16.02
03/07/16 877.93 61.12 801.26 19.15 795.43 19.10 794.51 8.81 793.49 5.09 796.85 4.33 800.53 7.99 804.35 7.00 819.75 12.16 845.00 45.40 802.62 13.08
09/13/16 879.89 59.16 798.33 22.08 793.97 20.56 792.60 10.72 791.17 7.41 795.52 5.66 799.91 8.61 803.96 7.39 817.33 14.58 846.73 43.67 800.20 15.50
MEAN 878.39 60.66 799.99 20.42 794.69 19.84 793.69 9.63 792.29 6.29 795.87 5.31 800.35 8.17 804.32 7.03 818.56 13.35 844.99 45.41 801.37 14.33
MAXIMUM 879.89 62.23 801.99 22.16 796.17 20.87 795.49 10.96 793.93 7.90 797.06 9.08 801.48 8.71 805.09 7.39 821.76 15.61 847.11 47.25 802.82 16.02
MINIMUM 876.82 59.16 798.25 18.42 793.66 18.36 792.36 7.83 790.68 4.65 792.10 4.12 799.81 7.04 803.96 6.26 816.30 10.15 843.15 43.29 799.68 12.88
Notes:ft AMSL = feet above mean sea level
TOC = top of casing
MW = monitoring well
OW = observation well
811.35
Active Subtitle D Landfill
MW-12 MW-13 MW-14 MW-15 MW-16 MW-17 MW-18 MW-19 MW-20
831.91 890.40 815.70939.05 820.41
TABLE 3
Historical Static Water Level Data for the Active Subtitle D Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
MW-21 MW-22
814.53 803.32 798.58 801.18 808.5
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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)
850
820
850
800
840
800
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)
860
810
840
800
870
800
Notes: Horizontal velocities based on the modified Darcy equation Vgw = Ki/ne.
Value for K is for the saprolite aquifer as presented in the HDR, 2003.
Value for ne is an estimated effective porosity used in previous HDR reports.
TABLE 4
Summary of Estimated Horizontal Flow Velocities
City of Winston-Salem Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Closed Landfill - September 2016
5.68E-04 58.91
i 2 SW 2458 0.0203 0.20 5.68E-04 59.78
i 1 WSW 1496 0.0200 0.20
48.40
Active Landfill - September 2016
i 4 E 911 0.0549 0.20 5.68E-04 161.28
i 3 SW 2429 0.0165 0.20 5.68E-04
144.21
i 6 SE 2843 0.0246 0.20 5.68E-04 72.34
i 5 E 815 0.0491 0.20 5.68E-04
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Northing Easting
MW-1RR 5/31/2001 891222.48 1620651.44 893.60 896.82 2 59.0 44.0-59.0 Bedrock
OW-3 9/13/1994 888851.47 1620210.52 817.75 820.13 2 16.0 6.0-16.0 Saprolite
OW-4 9/14/1994 888381.20 1619630.70 806.83 809.37 2 16.0 6.0-16.0 Saprolite
OW-6 9/13/1994 890727.15 1618831.90 824.74 827.12 2 27.0 12.0-27.0 Saprolite
OW-7DA 5/21/2001 888763.30 1618927.54 798.80 801.52 2 115.0 110.0-115.0 Bedrock
OW-10D 5/3/2001 889765.20 1618759.62 817.30 820.09 2 80.0 75.0-80.0 Bedrock
OW-11 9/15/1994 890240.94 1618632.60 804.47 806.69 2 16.0 6.0-16.0 Saprolite
OW-12 8/1/1999 888315.57 1619056.47 798.40 800.14 2 15.0 5.0-15.0 Saprolite
OW-13D 5/15/2001 889353.88 1618800.48 803.80 806.41 2 115.0 110.0-115.0 Bedrock
OW-14D 5/21/2001 889587.90 1618501.92 801.20 803.95 2 80.0 70.0-80.0 Bedrock
OW-17D 5/10/2001 888909.84 1618684.17 798.80 801.54 2 80.0 70.0-80.0 Bedrock
MW-1RR 5/31/2001 891222.48 1620651.44 893.60 896.82 2 59.0 44.0-59.0 Bedrock
MW-6 1/20/1997 890347.86 1621345.34 865.60 867.78 2 35.0 20.0-35.0 Saprolite
MW-6D 1/20/1997 890341.76 1621318.45 865.60 867.89 2 65.0 54.5-64.5 Saprollite/PWR
MW-7 1/22/1997 891367.95 1619472.34 843.10 845.33 2 25.0 10.0-25.0 Saprolite
MW-8 1/21/1997 891259.86 1619183.64 833.80 836.91 2 20.0 5.0-20.0 Saprolite
MW-9 1/23/1997 891177.69 1619026.90 840.40 843.60 2 30.0 15.0-30.0 Saprollite/PWR
MW-11 1/23/1997 890405.22 1616810.23 843.20 845.23 2 30.0 15.0-30.0 Saprolite
MW-12 7/22/2002 890405.22 1616810.23 936.80 939.05 2 82.0 67.0-82.0 Bedrock
MW-13 7/24/2002 889497.99 1618313.81 818.50 820.41 2 32.0 17.0-32.0 Saprolite
MW-14 7/22/2002 888763.43 1618559.47 812.50 814.53 2 29.0 14.0-29.0 Saprolite
MW-15 7/23/2002 888370.53 1618517.81 800.90 803.32 2 22.0 5.0-20.0 Saprolite
MW-16 7/22/2002 887727.16 1618443.32 796.40 798.58 2 20.0 5.0-20.0 Saprolite
MW-17 7/23/2002 887333.74 1617864.55 799.10 801.18 2 20.0 5.0-20.0 Saprolite
MW-18 7/23/2002 887638.88 1617424.75 806.30 811.35 2 19.0 4.0-19.0 Saprollite/PWR
MW-19 7/23/2002 887899.38 1617138.22 809.10 811.35 2 20.0 5.0-20.0 Saprolite
MW-20 1/12/2009 888799.88 1616654.25 829.03 831.91 2 25.0 15.0-25.0 Saprolite
MW-21 1/20/2009 889414.61 1616730.40 888.72 890.40 2 56.0 46.0-56.0 PWR
MW-22 1/13/2009 889935.47 1618145.25 812.81 815.70 2 28.0 18.0-28.0 Saprolite
Notes:ft AMSL = feet above mean sea level
ft bgs = feet below ground surface
PWR = partially weathered rock
Well construction information collected from HDR historical reports.
Well MW-9 was re-surveyed after repairs were made in September 2011.
Coordinates Well
Diameter
(in)
Active Subtitle D Landfill Monitoring Wells
TABLE 5
Summary of Well Construction Information
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Closed Unlined Landfill Monitoring Wells
Closed Subtitle D Landfill Monitoring Wells
Well
Identification
Construction
Date
Well
Depth
(ft bgs)
Geology of
Screened
Interval
Screened
Interval
(ft bgs)
Measuring
Point
Elevation
(ft AMSL)
Ground
Surface
Elevation
(ft AMSL)
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MW-1RR OW-3 OW-4 OW-6 OW-7DA OW-10D OW-11 OW-12 OW-13D OW-14D OW-17D
Barium ug/L 09/13/16 700 2000 1.00 100 20.9 J 993 153 48.1 J 5.81 J 26.7 J 134 52.9 J 4.60 B 22.2 J 40.0 J 1.08 J
Chromium ug/L 09/13/16 10 100 1.40 10 ND ND ND 2.08 J 2.77 J ND 1.76 J 8.66 J ND ND ND ND
Cobalt ug/L 09/13/16 1 --1.10 10 ND 10.7 2.24 J ND ND ND ND ND ND ND ND ND
Copper ug/L 09/13/16 1000 1300 1.60 10 2.41 B 2.19 B ND ND ND 1.67 B ND 1.65 B ND ND ND 3.72 J
Nickel ug/L 09/13/16 100 --1.80 50 ND 15.6 J 3.79 J ND ND 2.87 J 4.31 J 2.71 J ND ND ND ND
Thallium ug/L 09/13/16 0.28 2 0.110 5.5 ND 0.118 J ND ND ND ND ND ND ND ND ND ND
Vanadium ug/L 09/13/16 0.3 --1.40 25 1.72 J ND ND ND 6.94 J 2.88 J 1.73 J 1.63 J ND 3.57 J ND ND
Benzene ug/L 09/13/16 1 5 0.15 1 ND 4.8 1.1 ND ND 0.68 J ND ND ND ND ND ND
Chlorobenzene ug/L 09/13/16 50 100 0.17 3 ND 6.6 1.0 J ND ND ND ND ND ND ND ND ND
1,2-Dichlorobenzene ug/L 09/13/16 20 600 0.19 5 ND 2.0 J 0.86 J ND ND ND ND ND ND ND ND ND
1,4-Dichlorobenzene ug/L 09/13/16 6 75 0.19 1 ND 28 6.7 ND ND 1.2 ND ND ND ND 0.63 J ND
Dichlorodifluoromethane ug/L 09/13/16 1000 --0.20 5 ND ND 0.81 J ND ND 6.0 ND 0.85 J ND ND 0.89 J ND
1,1-Dichloroethane ug/L 09/13/16 6 --0.13 5 ND 2.6 J 2.9 J 0.97 J ND 11 ND ND 0.67 J 0.68 J 4.2 J ND
1,2-Dichloroethane ug/L 09/13/16 0.4 5 0.21 1 ND 0.64 J ND ND ND ND ND ND ND ND ND ND
1,1-Dichloroethene ug/L 09/13/16 7 7 0.21 5 ND ND ND 3.9 J ND 0.56 J ND ND ND 0.45 J ND ND
cis-1,2-Dichloroethene ug/L 09/13/16 70 70 0.15 5 ND 82 17 0.81 J ND 9.3 ND ND ND ND 13 ND
trans-1,2-Dichloroethene ug/L 09/13/16 100 100 0.21 5 ND 3.0 J 0.61 J ND ND ND ND ND ND ND ND ND
1,2-Dichloropropane ug/L 09/13/16 0.6 5 0.10 1 ND 1.4 0.55 J ND ND ND ND ND ND ND ND ND
Chloromethane ug/L 09/13/16 3 --0.13 1 ND ND ND 0.41 J ND ND ND ND ND ND ND ND
Tetrachlorothene ug/L 09/13/16 0.7 5 0.17 1 ND ND 4.7 ND ND 4.7 ND ND ND ND ND ND
Trichloroethene ug/L 09/13/16 3 5 0.15 1 ND 0.77 J 6.9 ND ND 4.7 ND ND ND ND 10 ND
Trichlorofluoromethane ug/L 09/13/16 2000 --0.24 1 ND ND ND ND ND 0.86 J ND ND ND ND ND ND
Vinyl chloride ug/L 09/13/16 0.03 2 0.32 1 ND 62 0.87 J ND ND 0.50 J ND ND ND ND ND ND
Chloride mg/L 09/13/16 250 250 2.20 --57 210 42 ----3.6 J --3.9 J --3.3 J 4.3 J ND
Nitrate as N mg/L 09/13/16 10 10 0.025 10 0.23 J 0.066 J ND ----ND --0.44 J --0.21 J 0.048 J ND
Sulfate as SO4 mg/L 09/13/16 250 --2.90 250 9.2 J 7.0 J 3.7 J ----3.0 J --ND --3.7 J 3.0 J ND
Total Alkalinity as CaCO3 mg/L 09/13/16 ----14 --57 180 110 ----88 --60 --67 110 ND
Total Organic Carbon mg/L 09/13/16 ----340 --1.5 14 2.0 ----0.81 J --0.51 J --0.45 J 0.67 J ND
Ferrous Iron (field)mg/L 09/13/16 --------0.0 1.6 0.2 ----0.0 --0.0 --0.0 0.0 --
Acetic Acid ug/L 09/13/16 ----0.16 --ND 28 ND ----0.30 --0.31 --ND ND ND
Propionic Acid ug/L 09/13/16 ----0.065 --ND 17 ND ----ND --ND --ND ND ND
Pentanoic Acid ug/L 09/13/16 --------ND ND ND ----ND --0.77 --ND ND ND
Hydrogen nM 09/13/16 ----0.075 --1.9 1.9 2.1 ----2.1 --2.0 --3.0 2.0 --
Notes:mg/L =milligrams per liter
ug/L =micrograms per liter
nM =nano mols
NC 2L =North Carolina Water Quality Standard
GWPS =Solid Waste Section Groundwater Protection Standard
EPA MCL =United States Environmental Protection Agency Maximum Contaminant Limit
J =estimated value
B =blank-qualified data
ND =not detected above the laboratory detection limit
-- =no data or no limit established
# =EPA Action Level
* = EPA Secondary MCL
Blanks =field, trip and method blanks
Bold =concentrations above applicable GWPS and/or NC 2L have been bolded.
Shaded = concentrations above applicable EPA MCL have been shaded.
MDL =laboratory method detection limit
Detected Monitoring Constituents/Analytes Units Sample
Date
SWS
Reporting
Limit
Upgradient Downgradient
Blanks
TABLE 6
Summary of Detected Constituents in Monitoring Wells at the Closed Unlined Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
NC2L/
GWPS MDLEPA MCL
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MW-1RR OW-3 OW-4 OW-6 OW-7DA OW-10D OW-11 OW-12 OW-13D OW-14D OW-17D
pH (field)S.U.09/13/16 5.54 5.16 5.14 5.21 6.82 5.72 6.07 5.51 6.37 6.11 6.15
Specific Conductance (field)µS/cm 09/13/16 297 910 325 91 152 184 236 129 243 148 191
Temperature (field)°C 09/13/16 17.7 18.7 17.8 17.8 17.2 15.7 17.4 17.5 16.0 18.6 17.2
Turbidity (field)NTU 09/13/16 9.16 1.94 1.19 2.36 1.01 5.39 3.34 5.73 1.17 2.16 0.85
Oxidation-Reduction (field)mV 09/13/16 72.3 39.8 148.1 135.9 71.1 100.6 64.4 146.6 -68.2 131.7 25.7
Dissolved Oxygen (field)mg/L 09/13/16 1.75 0.36 2.90 0.60 1.79 0.69 0.63 0.38 0.34 1.87 0.22
Notes:mg/L =milligrams per liter
S.U. =Standard Units
NTU =nephelometric turbidity units
nM =nano mols
ND =not detected above the laboratory detection limit
uS/cm=microsiemens per centimeter
mV =millivolts
oC =degrees Celsius
-- =no data or no limit established
Detected Monitoring
Constituents/Analytes Units Sample
Date
TABLE 7
Summary of Field Parameters from Monitoring Wells at the Closed Unlined Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Upgradient Downgradient
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NBC-1 NBC-2 SW-3 SW-4 SW-1 SW-2
Antimony ug/L 09/13/16 ------0.220 6 ND ND 0.376 J ND ND 0.230 J ND
Barium ug/L 09/13/16 200000 ----1.00 100 60.3 J 51.9 J 82.7 J 89.3 J 65.0 J 81.4 J 1.08 J
Cobalt ug/L 09/13/16 ------1.10 10 ND 1.14 J ND ND ND ND ND
Copper ug/L 09/13/16 ----7*1.60 10 2.34 B 2.79 B ND 2.01 B ND ND 3.72 J
Thallium ug/L 09/13/16 ------0.110 6 ND ND 0.112 J ND ND ND ND
Vanadium ug/L 09/13/16 ------1.40 25 1.96 J 2.00 J ND 1.61 J ND ND ND
Zinc ug/L 09/13/16 --36 36 3.80 10 ND ND ND 12.4 ND ND ND
Notes:ug/L =micrograms per liter
J =estimated value
B =blank-qualified data
ND =not detected above the laboratory detection limit
-- =no data or no limit established
Blanks =field, trip and method blanks
Bold = concentrations above the Surface Water Standards have been bolded.
SW Standard =NC Freshwater Aquatic Life or Human Health Standards as defined in 15A NCAC 2B (Grassy Creek - Class C Waters)
MDL =laboratory method detection limit
* Surface Water Standard is an Action Level Standard
1
2 SW-1 is an upstream monitoring point and SW-2 is a downstream monitoring point for the Active Subtitle D landfill.
Active Subtitle D Landfill
Blanks
NBC-1 and SW-3 are upstream monitoring points and NBC-2 and SW-4 are downstream monitoring points for the Closed unlined landfill and Closed Subtitle D landfill.
TABLE 8
Summary of Detected Constituents in Surface Water Monitoring Points
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Detected Monitoring
Constituents/Analytes Units Sample Date SWS Reporting
Limit
Closed Unlined and Closed Subtitle D LandfillsChronic
Aquatic Life
Standard
MDL
Freshwater
Aquatic Life
Chronic
Standard
Human Health
Standard
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NBC-1 NBC-2 SW-3 SW-4 SW-1 SW-2
pH (field)S.U.09/13/16 6.13 6.31 6.06 6.00 6.22 6.54
Specific Conductance (field)uS/cm 09/13/16 154 126 120 244 128 267
Temperature (field)°C 09/13/16 18.8 19.6 17.4 19.3 22.4 24.2
Turbidity (field)NTU 09/13/16 7.38 37.0 13.8 5.47 4.33 7.24
Oxidation-Reduction Potential (field)mV 09/13/16 73.5 194.8 72.8 261.0 86.0 117.3
Dissolved Oxygen (field)mg/L 09/13/16 4.41 4.15 5.57 7.57 7.46 8.43
Notes:mg/L =milligrams per liter
S.U. =Standard Units
NTU =nephelometric turbidity units
oC =degrees Celsius
uS/cm=microsiemens per centimeter
mV =millivolts
-- =no data or no limit established
1.
2.SW-1 is an upstream monitoring point and SW-2 is a downstream monitoring point for the Active Subtitle D landfill.
Detected Monitoring
Constituents/Analytes Units Sample Date
Closed Unlined and Closed Subtitle D Landfills Active Subtitle D Landfill
TABLE 9
Summary of Field Parameters from Surface Water Monitoring Points
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
NBC-1 and SW-3 are upstream monitoring points and NBC-2 and SW-4 are downstream monitoring points for the Closed unlined landfill
and Closed Subtitle D landfill.
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MW-1RR MW-6 MW-6D MW-7 MW-8 MW-9 MW-11
Antimony ug/L 09/13/16 1 6 0.220 6 ND 0.658 J ND ND ND ND ND ND
Arsenic ug/L 09/13/16 10 10 5.40 10 ND 13.5 ND ND ND ND ND ND
Barium ug/L 09/13/16 700 2000 1.0 100 20.9 J 520 52.5 J 108 38.7 J 114 108 1.08 J
Beryllium ug/L 09/13/16 1 4 0.100 1 ND ND ND 0.291 J ND ND ND ND
Chromium ug/L 09/13/16 10 100 1.40 10 ND ND 2.31 J ND ND ND 14.3 ND
Cobalt ug/L 09/13/16 1 --1.10 10 ND 16.5 ND 14.5 ND ND ND ND
Copper ug/L 09/13/16 1000 1300#1.60 10 2.41 B 1.83 B ND 1.77 B 1.91 B 1.70 B 1.66 B 3.72 J
Nickel ug/L 09/13/16 100 --1.80 50 ND ND ND ND ND ND 5.94 J ND
Vanadium ug/L 09/13/16 0.3 --1.40 25 1.72 J ND 1.86 J ND 2.01 J ND ND ND
Zinc ug/L 09/13/16 1000 5000*3.80 10 ND 4.97 J ND 7.12 J ND ND 5.92 J ND
Acetone ug/L 09/13/16 6000 --1.2 100 ND 25 J ND ND ND ND ND ND
Benzene ug/L 09/13/16 1 5 0.15 1 ND 0.45 J ND ND ND ND ND ND
1,4-Dichlorobenzene ug/L 09/13/16 6 75 0.19 1 ND 0.47 J ND ND ND ND ND ND
1,1-Dichloroethane ug/L 09/13/16 6 --0.13 5 ND ND ND ND ND ND 0.58 J ND
1,1-Dichloroethene ug/L 09/13/16 7 7 0.21 5 ND ND ND ND 5.6 1.9 J 2.9 J ND
cis-1,2-Dichloroethene ug/L 09/13/16 70 70 0.15 5 ND 0.44 J ND ND ND ND ND ND
Notes:ug/L =micrograms per liter
NC 2L =North Carolina Water Quality Standard
GWPS =Solid Waste Section Groundwater Protection Standard
EPA MCL =United States Environmental Protection Agency Maximum Contaminant Limit
J =estimated value
B =blank-qualified data
ND =not detected above the laboratory detection limit
TABLE 10
Summary of Detected Constituents in Monitoring Wells at the Closed Subtitle D Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Detected Monitoring
Constituents/Analytes Units Sample
Date
SWS Reporting
Limit
Upgradient DowngradientNC2L /
GWPS BlanksMDLEPA MCL
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MW-1RR MW-6 MW-6D MW-7 MW-8 MW-9 MW-11
pH (field)S.U.09/13/16 5.54 5.86 5.31 3.82 5.23 4.66 5.04
Specific Conductance (field)µS/cm 09/13/16 297 680 184 26 122 72 72
Temperature (field)°C 09/13/16 17.7 18.6 19.5 15.3 17.4 16.1 20.0
Turbidity (field)NTU 09/13/16 9.16 10.7 3.20 8.26 15.5 1.78 9.76
Oxidation-Reduction (field)mV 09/13/16 72.3 -48.6 217.5 350.9 220.0 256.5 231.4
Dissolved Oxygen (field)mg/L 09/13/16 1.75 0.48 4.09 5.32 2.78 3.06 3.02
Notes:mg/L =milligrams per liter
S.U. =Standard Units
NTU =nephelometric turbidity units
uS/cm=microsiemens per centimeter
mV =millivolts
oC =degrees Celsius
Downgradient
TABLE 11
Summary of Field Parameters for Monitoring Wells at the Closed Subtitle D Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Detected Monitoring
Constituents/Analytes Units Sample
Date
Upgradient
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MW-12 MW-13 MW-14 MW-15 MW-16 MW-17 MW-18 MW-19 MW-20 MW-21 MW-22
Antimony ug/L 09/13/16 1 6 0.220 6 0.718 J 0.293 J ND ND 0.250 J ND ND ND 0.251 J ND ND ND
Barium ug/L 09/13/16 700 2000 1.00 100 36.4 J 100 71.4 J 77.6 J 85.5 J 48.1 J 77.8 J 47.2 J 106 50.6 J 192 1.08 J
Beryllium ug/L 09/13/16 1 4 0.100 1 ND ND 0.156 J ND ND ND 0.154 J ND 0.153 J ND ND ND
Chromium ug/L 09/13/16 10 100 1.40 10 ND 6.10 J 2.12 J 5.59 J 4.35 J ND 1.47 J ND ND 1.50 J ND ND
Cobalt ug/L 09/13/16 1 --1.10 10 ND ND ND ND ND ND ND 22.9 ND 1.20 J 1.46 J ND
Copper ug/L 09/13/16 1000 1300#1.60 10 ND ND ND 1.74 B 2.35 B ND 2.97 B 1.84 B ND 2.68 B ND 3.87 J
Nickel ug/L 09/13/16 100 --1.80 50 ND ND ND ND ND ND 3.06 J 5.57 J 3.33 J 6.34 J ND ND
Vanadium ug/L 09/13/16 0.3 --1.53 25 2.29 J 4.17 J ND 2.95 J 4.37 J 2.43 J 1.70 J ND ND 1.64 J ND ND
Zinc ug/L 09/13/16 1000 5000*3.80 10 ND ND ND ND 4.87 J ND 9.34 J ND 10.9 ND ND ND
Notes:ug/L =micrograms per liter
NC 2L =North Carolina Water Quality Standard
EPA MCL =United States Environmental Protection Agency Maximum Contaminant Limit
GWPS =Solid Waste Section Groundwater Protection Standard
J =estimated value
B =blank-qualified data
ND =not detected above the laboratory detection limit
-- =no data or no limits established
# =EPA Action Level
* = EPA Secondary MCL
Blanks =field, trip and method blanks
Bold = concentrations above applicable GWPS and/or NC 2L have been bolded.
Shaded = concentrations above applicable EPA MCL have been shaded.
TABLE 12
Summary of Detected Constituents in Monitoring Wells at the Active Subtitle D Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Detected Monitoring
Constituents/Analytes Units Sample Date SWS Reporting
Limit
Upgradient Downgradient
NC2L / GWPS BlanksMDLEPA MCL
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MW-12 MW-13 MW-14 MW-15 MW-16 MW-17 MW-18 MW-19 MW-20 MW-21 MW-22
pH (field)S.U.09/13/16 5.60 5.34 4.68 5.20 5.47 5.40 5.07 5.16 4.19 5.36 5.57
Specific Conductance (field)µS/cm 09/13/16 204 119 69 123 125 88 126 158 32 67 202
Temperature (field)°C 09/13/06 16.1 16.1 15.5 15.7 17.6 16.5 18.6 17.3 16.6 18.7 16.8
Turbidity (field)NTU 09/13/16 2.30 3.40 4.19 10.6 17.8 9.20 17.9 22.6 2.77 28.0 21.2
Oxidation-Reduction (field)mV 09/13/16 -12.4 244.5 294.4 238.6 216.3 195.9 193.7 23.4 305.6 175.7 66.3
Dissolved Oxygen (field)mg/L 09/13/16 2.44 5.12 2.96 1.51 4.26 1.74 1.03 0.93 4.21 6.31 0.37
Notes:mg/L =milligrams per liter
S.U. =Standard Units
NTU =nephelometric turbidity units
uS/cm=microsiemens per centimeter
mV =millivolts
oC =degrees Celsius
Downgradient
TABLE 13
Summary of Field Parameters for Monitoring Wells at the Active Subtitle D Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Detected Monitoring
Constituents/Analytes Units Sample Date
Upgradient
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Antimony ug/L 09/13/16 2.20 6 28.4 ND
Arsenic ug/L 09/13/16 5.40 10 49.3 ND
Barium ug/L 09/13/16 1.00 100 792 1.08 J
Chromium ug/L 09/13/16 1.40 10 40.7 ND
Cobalt ug/L 09/13/16 1.10 10 20.0 ND
Copper ug/L 09/13/16 1.60 10 4.62 B 3.72 J
Nickel ug/L 09/13/16 1.80 50 61.7 ND
Silver ug/L 09/13/16 1.90 10 2.09 J ND
Vanadium ug/L 09/13/16 1.40 25 27.3 ND
Zinc ug/L 09/13/16 3.80 10 58.7 ND
Acetone ug/L 09/13/16 50 100 230 ND
2-Butanone ug/L 09/13/16 45 100 90 J ND
Nitrate as N ug/L 09/13/16 25 10 120 J ND
Sulfate as SO4 mg/L 09/13/16 2.90 250 20 J ND
Biochemical Oxygen Demand mg/L 09/13/16 2.00 --470 ND
Chemical Oxygen Demand mg/L 09/13/16 10 --590 ND
Total Suspended Solids mg/L 09/13/16 1.00 --280 ND
Phosphorus mg/L 09/13/16 0.025 --0.390 ND
Ammonia as N mg/L 09/13/16 12 --240 J ND
pH (field)S.U.09/13/16 ----7.30 --
Specific Conductance (field)uS/cm 09/13/16 ----5200 --
Temperature (field)°C 09/13/16 ----25.90 --
Turbidity (field)NTU 09/13/16 ---->1000 --
Notes:
mg/L =milligrams per liter
ug/L =micrograms per liter
J =estimated value
B =blank-qualified data
ND =not detected above the laboratory detection limit
-- =no data or no limits established
Blanks =field, trip and method blanks
S.U. =Standard Units
NTU =nephelometric turbidity units
oC =degrees Celsius
uS/cm=microsiemens per centimeter
mV =millivolts
1.The following dilutions were noted for the September 2016 event:
VOCs (10x), Antimony (10x), Thallium (10x), Ammonia (180x),
TSS (100x).
TABLE 14
Summary of Detected Constituents and Field Parameters in Leachate
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Detected Monitoring Constituent Units Sample
Date
SWS
Reporting
Limit
Leachate BlanksMDL

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0939668716
PHASE
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DRAWING
10
2016/11/03
ACW
DYR
DYR
RPK
HANES MILL ROAD LANDFILL
PERMIT NO. 34-02
FORSYTH COUNTY, NORTH CAROLINA
WINSTON SALEM / FORSYTH COUNTY CITY /
COUNTY UTILITIES COMMISSION
GROUNDWATER SURFACE CONTOUR MAP
SEPTEMBER 13, 2016
VICINITY MAP
LEGEND
NOTES
810
EXISTING 10-FOOT GROUND SURFACE CONTOUR
EXISTING 2-FOOT GROUND SURFACE CONTOUR
EXISTING ROAD
MONITORING WELL AND IDENTIFICATION
GROUNDWATER ELEVATION 5 FT CONTOURS
GROUNDWATER FLOW ARROW
APPROXIMATE LIMITS OF WASTE
SURFACE WATER MONITORING POINT
METHANE MONITORING POINT
PROPERTY LINE
1.TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET
2.GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET
3.GROUNDWATER ELEVATIONS MEASURED ON SEPTEMBER 13, 2016.
4.GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION
FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE,
GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL CONDITIONS.
5.GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE
CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT
ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY
PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP
BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS.
6.BASE MAP PROVIDED BY BRADY SURVEYING COMPANY BASED ON JANUARY 4, 2013 AERIAL SURVEY.
TOPOGRAPHY AND OTHER EXISTING SITE FEATURES INSIDE OF DASHED LINE UPDATED BASED ON
JANUARY 6, 2016 AERIAL SURVEY.
7.COORDINATE SYSTEM IS N.C. STATE PLANE GRID.
SW-1
H
NM NOT MEASURED
GOLDER ASSOCIATES NC, INC.

APPENDIX A
GROUNDWATER AND SURFACE WATER SAMPLING LOGS

CLOSED UNLINED LANDFILL

CLOSED SUBTITLE D LANDFILL

ACTIVE SUBTITLE D LANDFILL

APPENDIX B
SEPTEMBER 2016 GROUNDWATER, SURFACE WATER, AND LEACHATE CERTIFICATE-OF-ANALYSIS, CHAIN-OF-CUSTODY FORMS AND LABORATORY DATA REVIEWS

CLOSED UNLINED LANDFILL

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Page 1 of 1
GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 3
Project Name: Hanes Mill Landfill – Closed Unlined
Project Reference Number: 0939-668716.100
Sampling Event Date: September 14-15, 2016
Review Date: October 28, 2016 Initials: TM
Report #: CZ13503, CZ13504, CZ13502
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/C & D List
NC Appendix I
NC Appendix I + Detects
X NC Appendix II
NC Subtitle D Leachate List
Other: MW-1RR: App II + methane, ethane, ethane and MNA parameters
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.
TM Sample receipt condition at laboratory was acceptable.
TM Each sample and blank submitted for analysis appears in the report.
2.0 SAMPLE HOLDING TIMES

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

GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 3

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.
 Lab Blank
o Barium @ 1.08 ug/L (J)
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 recovery of Trichloroethene was outside of control limits for the 8260B MS and MSD samples. The QC batch was approved on acceptable LCS recovery of this analyte. 4.0 ANALYTE LISTS/METHODS

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

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
GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 3
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.
 Lab Blank o Barium @ 1.08 ug/L (J)  Field Blank o Copper @ 3.72 ug/L (J)

 B-flags
o Copper: MW-1RR @ 2.41 ug/L (J), Barium: OW-13D @ 4.60 ug/L (J) 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.

TM The report provides the reporting limit for each constituent.
TM The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Reporting Limits-SWSLs). 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.
TM No inorganic or organic constituents were reported above their respective NC 2L
Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface
water points.

 Vanadium (SWS GWPS = 0.3 ug/L)
o OW-7DA @ 6.94 ug/L (J)
o OW-11 @ 1.73 ug/L (J) o MW-1RR @ 1.72 ug/L (J)
N/A No quantifiable inorganic or organic constituents were detected in a well or surface
water point at concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).
N/A Other report issues/Communications with laboratory/etc.:

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Page 1 of 1
GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 3
Project Name: Hanes Mill Landfill – Closed Unlined
Project Reference Number: 0939-668716.100
Sampling Event Date: September 14-15, 2016
Review Date: October 28, 2016 Initials: TM
Report #: CZ13503, CZ13504, CZ13502
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/C & D List
NC Appendix I
NC Appendix I + Detects
X NC Appendix II
NC Subtitle D Leachate List
Other: MW-1RR: App II + methane, ethane, ethane and MNA parameters
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.
TM Sample receipt condition at laboratory was acceptable.
TM Each sample and blank submitted for analysis appears in the report.
2.0 SAMPLE HOLDING TIMES

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

GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 3

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.
 Lab Blank
o Barium @ 1.08 ug/L (J)
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 recovery of Trichloroethene was outside of control limits for the 8260B MS and MSD samples. The QC batch was approved on acceptable LCS recovery of this analyte. 4.0 ANALYTE LISTS/METHODS

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

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
GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 3
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.
 Lab Blank o Barium @ 1.08 ug/L (J)  Field Blank o Copper @ 3.72 ug/L (J)

 B-flags
o Copper: MW-1RR @ 2.41 ug/L (J), Barium: OW-13D @ 4.60 ug/L (J) 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.

TM The report provides the reporting limit for each constituent.
TM The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Reporting Limits-SWSLs). 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.
TM No inorganic or organic constituents were reported above their respective NC 2L
Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface
water points.

 Vanadium (SWS GWPS = 0.3 ug/L)
o OW-7DA @ 6.94 ug/L (J)
o OW-11 @ 1.73 ug/L (J) o MW-1RR @ 1.72 ug/L (J)
N/A No quantifiable inorganic or organic constituents were detected in a well or surface
water point at concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).
N/A Other report issues/Communications with laboratory/etc.:

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 4
Project Name: Hanes Mill Landfill – Closed Unlined MNA
Project Reference Number: 0939-668716.100
Sampling Event Date: September 14, 2016
Review Date: October 28, 2016 Initials: TM
Report #: CZ13504, CZ13502
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/C & D List
NC Appendix I
NC Appendix I + Detects
X NC Appendix II
NC Subtitle D Leachate List
Other: Methane, Ethane, Ethene, Chloride, Mercury, Nitrate, Nitrite, Sulfate, & TOC
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.
TM Sample receipt condition at laboratory was acceptable.
TM Each sample and blank submitted for analysis appears in the report.
2.0 SAMPLE HOLDING TIMES

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

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 4

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.
 Barium @ 1.08 ug/L (J)
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).
 The 8260B surrogate spike recovery of Dibromofluoromethane exceeded acceptance
criteria for the Trip Blank. The sample was approved based on acceptable recovery of the
other surrogate standards.
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 Alkalinity, Nitrate/Nitrite (NOx), and Sulfide were outside of control
limits for the MS and/or MSD samples, and precision between duplicate spikes of NOx
exceeded acceptance criteria. The QC batches were approved based on acceptable LCS
recovery of these analytes.
 The spike recovery of Trichloroethene was outside of control limits for the 8260B MS and
MSD samples. The QC batch was approved based on acceptable LCS recovery of this
analyte.
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 NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 4
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.

 Lab Blank
o Barium @ 1.08 ug/L (J)
 Field Blank
o Copper @ 3.72 ug/L (J)
 B-flags (Copper)
o OW3 @ 2.19 ug/L (J), OW10D @ 1.67 ug/L (J), OW12 @ 1.65 ug/L (J)

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.

 Chloride (x3)
o OW-3
TM The report provides the reporting limit for each constituent.
TM The results were reported at or below their proper reporting limits (e.g., NC Solid
Waste Section Reporting Limits-SWSLs). 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.
TM No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or
field/equipment/trip blanks or above applicable Surface Water Standards for surface water points.

 Barium (NC 2L = 700 ug/L) o OW-3 @ 993 ug/L
 Cobalt (GWPS = 1 ug/L) o OW-3 @ 10.7 ug/L o OW-4 @ 2.24 ug/L (J)

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 4 of 4

 Vanadium (GWPS = 0.3 ug/L) o OW-10D @ 0.50 ug/L (J)
o OW-12 @ 1.63 ug/L (J) o OW-14D @ 3.57 ug/L (J)

 Benzene (NC 2L = 1 ug/L) (EPA MCL = 5 ug/L)
o OW-3 @ 4.8 ug/L o OW-4 @ 1.1 ug/L

 1,1-Dichloroethane (NC 2L = 6 ug/L)
o OW-10D @ 11 ug/L
 1,2-Dichloroethane (NC 2L = 0.4 ug/L) o OW-3 @ 0.64 ug/L

 1,2-Dichloropropane (NC 2L = 0.6 ug/L)
o OW-3 @ 1.4 ug/L
 1,4-Dichlorobenzene (NC 2L = 6 ug/L) o OW-3 @ 28 ug/L
o OW-4 @ 6.7 ug/L
 Cis-1,2 Dichloroethene (NC 2L = 70 ug/L) (EPA MCL = 70 ug/L) o OW-3 @ 82 ug/L

 Tetrachloroethene (NC 2L = 0.7 ug/L) (EPA MCL = 5 ug/L)
o OW-4 @ 4.7 ug/L o OW-10D @ 4.7 ug/L

 Trichloroethene (NC 2L = 3 ug/L) (EPA MCL = 5 ug/L)
o OW-4 @ 6.9 ug/L o OW-10D @ 4.7 ug/L
o OW-17D @ 10 ug/L
 Vinyl chloride (NC 2L = 0.03 ug/L) (EPA MCL = 2 ug/L) o OW-3 @ 62 ug/L
o OW-4 @ 0.87 ug/L (J) o OW-10D @ 0.50 ug/L (J)
N/A No quantifiable inorganic or organic constituents were detected in a well or surface
water point at concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).
N/A Other report issues/Communications with laboratory/etc.:

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Page 1 of 1
GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 4
Project Name: Hanes Mill Landfill – Closed Unlined MNA
Project Reference Number: 0939-668716.100
Sampling Event Date: September 14, 2016
Review Date: October 28, 2016 Initials: TM
Report #: CZ13504, CZ13502
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/C & D List
NC Appendix I
NC Appendix I + Detects
X NC Appendix II
NC Subtitle D Leachate List
Other: Methane, Ethane, Ethene, Chloride, Mercury, Nitrate, Nitrite, Sulfate, & TOC
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.
TM Sample receipt condition at laboratory was acceptable.
TM Each sample and blank submitted for analysis appears in the report.
2.0 SAMPLE HOLDING TIMES

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

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 4

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.
 Barium @ 1.08 ug/L (J)
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).
 The 8260B surrogate spike recovery of Dibromofluoromethane exceeded acceptance
criteria for the Trip Blank. The sample was approved based on acceptable recovery of the
other surrogate standards.
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 Alkalinity, Nitrate/Nitrite (NOx), and Sulfide were outside of control
limits for the MS and/or MSD samples, and precision between duplicate spikes of NOx
exceeded acceptance criteria. The QC batches were approved based on acceptable LCS
recovery of these analytes.
 The spike recovery of Trichloroethene was outside of control limits for the 8260B MS and
MSD samples. The QC batch was approved based on acceptable LCS recovery of this
analyte.
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 NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 4
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.

 Lab Blank
o Barium @ 1.08 ug/L (J)
 Field Blank
o Copper @ 3.72 ug/L (J)
 B-flags (Copper)
o OW3 @ 2.19 ug/L (J), OW10D @ 1.67 ug/L (J), OW12 @ 1.65 ug/L (J)

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.

 Chloride (x3)
o OW-3
TM The report provides the reporting limit for each constituent.
TM The results were reported at or below their proper reporting limits (e.g., NC Solid
Waste Section Reporting Limits-SWSLs). 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.
TM No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or
field/equipment/trip blanks or above applicable Surface Water Standards for surface water points.

 Barium (NC 2L = 700 ug/L) o OW-3 @ 993 ug/L
 Cobalt (GWPS = 1 ug/L) o OW-3 @ 10.7 ug/L o OW-4 @ 2.24 ug/L (J)

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 4 of 4

 Vanadium (GWPS = 0.3 ug/L) o OW-10D @ 0.50 ug/L (J)
o OW-12 @ 1.63 ug/L (J) o OW-14D @ 3.57 ug/L (J)

 Benzene (NC 2L = 1 ug/L) (EPA MCL = 5 ug/L)
o OW-3 @ 4.8 ug/L o OW-4 @ 1.1 ug/L

 1,1-Dichloroethane (NC 2L = 6 ug/L)
o OW-10D @ 11 ug/L
 1,2-Dichloroethane (NC 2L = 0.4 ug/L) o OW-3 @ 0.64 ug/L

 1,2-Dichloropropane (NC 2L = 0.6 ug/L)
o OW-3 @ 1.4 ug/L
 1,4-Dichlorobenzene (NC 2L = 6 ug/L) o OW-3 @ 28 ug/L
o OW-4 @ 6.7 ug/L
 Cis-1,2 Dichloroethene (NC 2L = 70 ug/L) (EPA MCL = 70 ug/L) o OW-3 @ 82 ug/L

 Tetrachloroethene (NC 2L = 0.7 ug/L) (EPA MCL = 5 ug/L)
o OW-4 @ 4.7 ug/L o OW-10D @ 4.7 ug/L

 Trichloroethene (NC 2L = 3 ug/L) (EPA MCL = 5 ug/L)
o OW-4 @ 6.9 ug/L o OW-10D @ 4.7 ug/L
o OW-17D @ 10 ug/L
 Vinyl chloride (NC 2L = 0.03 ug/L) (EPA MCL = 2 ug/L) o OW-3 @ 62 ug/L
o OW-4 @ 0.87 ug/L (J) o OW-10D @ 0.50 ug/L (J)
N/A No quantifiable inorganic or organic constituents were detected in a well or surface
water point at concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).
N/A Other report issues/Communications with laboratory/etc.:

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CLOSED SUBTITLE D LANDFILL

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GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 4
Project Name: Hanes Mill Landfill – Closed Sub D
Project Reference Number: 0939-668716.101
Sampling Event Date: September 13, 2016
Review Date: October 28, 2016 Initials: TM
Report #: CZ13452, CZ13502
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/C & D List
X NC Appendix I
NC Appendix I + Detects
NC Appendix II
NC Subtitle D Leachate List
Other:
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.
TM Sample receipt condition at laboratory was acceptable.
TM Each sample and blank submitted for analysis appears in the report.
Notes:

GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 4
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.
 Lab Blank
o Barium @ 1.08 ug/L (J)
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).
4.0 ANALYTE LISTS/METHODS
TM The proper number of constituents are present for each analyte list as identified
above (including detects where applicable).
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.

GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 4

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.
 Lab Blank o Barium @ 1.08 ug/L (J)
 Field Blank o Copper @ 3.72 ug/L (J)
 B-flags
o Copper: MW-6, MW-7, MW-8, MW-9, MW-11
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.

TM The report provides the reporting limit for each constituent.
TM The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Reporting Limits-SWSLs). 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.

TM No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or
field/equipment/trip blanks or above applicable Surface Water Standards for surface
water points.
 Arsenic (GWPS = 10 ug/L) o MW-6 @ 13.5 ug/L

 Chromium (NC 2L = 10 ug/L) o MW-11 @ 14.3 ug/L
 Cobalt (GWPS = 1 ug/L)
o MW-6 @ 16.5 ug/L o MW-7 @ 14.5 ug/L
 Vanadium (GWPS = 0.3 ug/L)
o MW-6D @ 1.86 ug/L (J) o MW-8 @ 2.0 ug/L (J)
N/A No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).
GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 4 of 4
N/A Other report issues/Communications with laboratory/etc.

ACTIVE SUBTITLE D LANDFILL

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GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 3
Project Name: Hanes Mill Landfill – Active Sub D
Project Reference Number: 0939-668716.102
Sampling Event Date: September 13, 2016
Review Date: October 28, 2016 Initials: TM
Report #: CZ13451, CZ13502

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/C & D List
X NC Appendix I
NC Appendix I + Detects
NC Appendix II
NC Subtitle D Leachate List
Other:
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.
TM Sample receipt condition at laboratory was acceptable.
TM Each sample and blank submitted for analysis appears in the report.
Notes:

GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 3
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 1,1- Dichloroethene and Trichloroethene were outside of control
limits for the 8260B MS and/or MSD samples. The QC batch was approved based on acceptable 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).
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.
GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 3

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.
 Field Blank o Copper @ 3.72 ug/L (J)
 B-flags o Copper: MW-15, MW-16, MW-18, MW-19, MW-21
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.
TM The report provides the reporting limit for each constituent.
TM The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Reporting Limits-SWSLs). 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.

TM No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or
field/equipment/trip blanks or above applicable Surface Water Standards for surface
water points.
 Cobalt (GWPS = 1 ug/L) o MW-19 @ 22.9 ug/L
o MW-21 @ 1.20 ug/L (J) o MW-22 @ 1.46 ug/L (J)

 Vanadium (GWPS = 0.3 ug/L)
o MW-12 @ 2.29 ug/L (J) o MW-13 @ 4.17 ug/L (J) o MW-15 @ 2.95 ug/L (J) o MW-16 @ 4.37 ug/L (J)
o MW-17 @ 2.43 ug/L (J) o MW-18 @ 1.70 ug/L (J)
o MW-21 @ 1.64 ug/L (J)
TM No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections).
N/A Other report issues/Communications with laboratory/etc.:

LEACHATE

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GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 1 of 3
Project Name: Hanes Mill Rd Landfill – Leachate
Project Reference Number: 0939-668716.102
Sampling Event Date: September 15, 2016
Review Date: September 30, 2016 Initials: TM
Report #: CZ13505
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 / C&D List
NC Appendix I
NC Appendix I + Detects
NC Appendix II
X NC Subtitle D Leachate List
Other: Mercury
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.
TM Sample receipt condition at laboratory was acceptable.
TM Each sample and blank submitted for analysis appears in the report.

Notes:

GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 3
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 Ammonia, Nitrate/Nitrite (NOx), 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).
TM Proper EPA SW-846 analytical methods were used for analysis.

5.0 DATA REPORTING
GOLDER TMSOCIATES NC, INC. QUALITY TMSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 3
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.
 Field Blank
o Copper @ 3.72 ug/L (J), Add B-Flag to Leachate Sample @ 4.62 ug/l (J)
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.

 Sample, Leachate, was processed at dilutions for the 8260B and 6020B (Antimony and
Thallium) analyses, due to matrix interference, resulting in elevated reporting limits.
 Leachate o VOCs (10x)
o Antimony (10x) o Thallium (10x) o Ammonia (180x) o Total Suspended Solids (100x) TM The report provides the reporting limit for each constituent.
TM The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Reporting Limits-SWSLs). 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 inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GPS) in wells or
field/equipment/trip blanks or above applicable Surface Water Standards for surface
water points.
N/A No quantifiable inorganic or organic constituents were detected in a well or surface
water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections).

N/A Other report issues/Communications with laboratory/etc.:

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