3402_Forsyth_HanesMillRoad_MSWLF_ASDMetals_FID1417685_20200630

I pENR USE ONLY ❑Paper Report []Electronic Data - Email CD (data loaded: Yes / No Doc/Event #:
NC DENR Environmental Monitoring
Division of Waste Management - Solid Waste Reporting Form
Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are
available for inspection and examination by any person upon request (NC General Statute 132-6).
Instructions:
Prepare one form for each individually monitored unit.
Please type or print legibly.
Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification
must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing
condition, etc.).
Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits.
Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the
facility (NCAC 13B .1629 (4)(a)(i).
Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste
Section, 1646 Mail Service Center, Raleigh, NC 27699-1646.
Solid Waste Monitoring Data Submittal Information
Name of entity submitting data (laboratory, consultant, facility owner):
Golder Associates NC, Inc. on behalf of the Winston-Salem/Forsyth County City/County Utilities Commission
Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address:
Name: David Y. Reedv II. PG Phone: [phone]
E-mail: [e-mail]
Facility name: Facility Address:
Hanes Mill Road Landfill 325 Hanes Mill Road
Winston-Salem, NC 27105
Environmental Status: (Check all that apply)
Initial/Background Monitoring O Detection Monitoring
e of data submitted: (Check all that apply)
Groundwater monitoring data from monitoring wells
Groundwater monitoring data from private water supply wells
Leachate monitoring data O
Surface water monitoring data
NC Landfill Rule: Actual sampling dates (e.g.,
Facility Permit # (.0500 or .1600) October 20-24, 2006)
34-02 .1600 March 2-5, 2020 and
May 12. 2020
R Assessment Monitoring
Methane gas monitoring data
Corrective action data (specify)
Other(specify)
Q Corrective Action
Notification attached?
IX No. No groundwater or surface water standards were exceeded.
riYes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water
monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and
preliminary analysis of the cause and significance of any concentration.
Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample
values and explosive methane gas limits.
Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct.
Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas
levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there
are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
David Y. Reedy II, PG Senior Hydrogeologist [phone]
Facili ive Na 1 Title (Area Code) Telephone Number
Affix NC Licensed/ Professional Geologist Seal
G -30 - zazc saGcp,•:E.
Signature - J-—
Date
Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, NC 27407
Facility Representative Address
C-2862
NC PE Firm License Number (if applicable effective May 1, 2009)
Revised 6/2009

GOLDER
REPORT
Alternate Source Demonstration for Inorganic
Constituents
Hanes Mill Road Landfill, Permit No. 34-02
Submitted to:
Jackie Drummond, Hydrogeologist
North Carolina Department of Environmental Quality
Division of Waste Management - Solid Waste Section
2090 US Highway 70
Swannanoa, North Carolina 28778
828-296-4706
Submitted by:
Golder Associates NC, Inc.
5B Oak Branch Drive, Greensboro, North Carolina, USA 27407
[phone]
19117535.701
June 30, 2020

June 30, 2020
Distribution List
1F!SfiMMWei
Adam Rickett, Senior Project Supervisor, Winston-Salem/Forsyth City/County Utilities Commission, 325 Hanes
Mill Road, Winston-Salem, NC 27105. 336-661-4900. [e-mail].
Gordon Dively, PE, Solid Waste Operations Manager, Winston-Salem/Forsyth City/County Utilities Commission,
325 Hanes Mill Road, Winston-Salem, NC 27105. 336-661-4900. [e-mail].
Mike Plummer, PE, HDR, 440 South Church Street, 10th Floor, Charlotte, NC 28202, 704 338 6719.
Michael. [e-mail]. (electronic copy)
GOLDER

June 30, 2020 19117535.701
Executive Summary
On behalf of Winston-Salem / Forsyth County Utility Commission (WSFCU), Golder Associates NC, Inc. (Golder)
is submitting the following Alternate Source Demonstration (ASD) at the Hanes Mill Road Landfill. This ASD has
been prepared as proposed in the Update on Addressing Inorganic Exceedances; Request to Install Additional
Background Groundwater Monitoring Wells (Update), which was approved by the North Carolina (NC)
Department of Environmental Quality (DEQ) on September 17, 2018. The Update was issued in response to the
Request for Additional Information (Request) issued by the North Carolina Department of Environmental Quality
(NC DEQ), dated January 18, 2018 to address concentrations of barium and cobalt in the sample from monitoring
well OW-3 at the closed unlined landfill; chromium, and cobalt in samples from monitoring wells MW-6, MW-7,
and MW-11 at the closed Subtitle D landfill; and cobalt in the sample from monitoring well MW-19 at the active
Subtitle D landfill, which were above their respective NC 2L Standards and Solid Waste Section Limits (SWSLs)
during the September 2016 compliance monitoring event.
The ASD has been prepared in accordance with Title 15A of the North Carolina Administrative Code (NCAC)
Subchapter 13B .1633(C)(3). The following evaluations indicate that the source of above -standard concentrations
of constituents -of -concern (COCs) in groundwater samples collected from downgradient monitoring wells at the
Hanes Mill Road Landfill are not related to a release from the waste management units at the facility:
Barium has been detected in samples from OW-3 at concentrations that are typically more than 2 times
higher than the concentrations detected in samples from the facility leachate collection system
Chromium has been detected in samples from MW-11 at concentrations that are similar to the
concentrations detected in samples from the facility leachate. Chromium has been detected in samples from
the background wells at concentrations lower than the concentrations detected in MW-11. Therefore, a
mixture of facility leachate and groundwater from the background wells is not likely to produce the
concentrations observed in the samples from MW-11.
Cobalt has been detected in samples from OW-3, MW-6, MW-7, and MW-19 at concentrations that are
similar to or higher than the concentrations detected in samples from the facility leachate. Cobalt has been
sporadically detected in samples from the background wells. Therefore, a mixture of facility leachate and
groundwater from the background wells is not likely to produce the concentrations observed in the samples
from OW-3, MW-6, MW-7, and MW-19.
Ternary plots created to evaluate various combinations of cations are inconclusive, showing that the
geochemistry of the facility leachate can be similar to wells OW-3, MW-6, and MW-19, but can also be
similar to background wells MW-12 and MW-24
Published data indicate that the concentrations of the COCs detected in wells OW-3, MW-6, MW-7, MW-11,
and MW-19 are within the range of naturally occurring concentrations in crystalline -rock groundwater in the
Piedmont Physiographic Province.
Time Series plots and Sen's Slope estimator plots show that all of the COCs show a declining trend in
concentrations
4 GOLDER

June 30, 2020
19117535.701
Intra-well statistics indicate that concentrations of the COCs at the closed Subtitle D landfill are below
calculated background concentrations. Intra-well accounts for the spatial variability of the site. Intra-well
statistics was not performed for OW-3 because the closed unlined landfill does not have a liner. Intra-well
statistics was not performed for MW-19 at the active Subtitle D landfill because there is not currently enough
groundwater analytical data from samples having turbidity of less than 10 Nephelometric Turbidity Units.
Soil partitioning calculations using historic soil data indicate that the COCs are present in the facility soils at
concentrations capable of generating concentrations in groundwater that has been detected in wells OW-3,
MW-6, MW-7, MW-11, and MW-19
Based on the information above, the WSFCU proposes the following actions at the facility:
No further action for the groundwater standard exceedances for barium and cobalt at OW-3 at the closed
unlined landfill
Implement groundwater protection standards (GPS) based on the intra-well statistical calculations as follows:
GPS for chromium at MW-11 of 18.9 ug/L
GPS for cobalt at MW-6 of 20.0 ug/L
GPS for cobalt at MW-7 of 29.9 ug/L
Allow additional 3 years to acquire additional cobalt data from MW-19 during routine sampling events to
establish a GPS
Based on the evaluations and conclusions presented herein, and in the absence of other indicators for a release
of solid waste constituents to the uppermost aquifer, the WSFCU requests approval of this ASD and proposes no
further actions other than the establishment of a GPS for cobalt at MW-19 at the end of the three-year period.
GOLDER

June 30, 2020 19117535.701
Table of Contents
1.0
INTRODUCTION.............................................................................................................................................1
1.1
Site Description and Background.........................................................................................................1
1.2
Compliance Monitoring History............................................................................................................1
2.0
HYDROGEOLOGIC SETTING.......................................................................................................................3
3.0
CONSTITUENTS OF CONCERN...................................................................................................................3
3.1
Closed Unlined Landfill........................................................................................................................3
3.1.1
Barium.............................................................................................................................................3
3.1.2
Cobalt..............................................................................................................................................4
3.2
Closed Subtitle D Landfill.....................................................................................................................4
3.2.1
Chromium........................................................................................................................................4
3.2.2
Cobalt..............................................................................................................................................4
3.3
Active Subtitle D Landfill......................................................................................................................5
3.3.1
Cobalt..............................................................................................................................................5
4.0
POTENTIAL SOURCES.................................................................................................................................5
4.1
Evaluation of the Waste Management Unit as a Potential Source......................................................5
4.1.1
Closed Unlined Landfill...................................................................................................................5
4.1.1.1
Evaluation of COCs.....................................................................................................................5
4.1.1.2
Evaluation of non-COCs..............................................................................................................6
4.1.2
Closed Subtitle D Landfill................................................................................................................7
4.1.2.1
Evaluation of COCs.....................................................................................................................7
4.1.2.2
Evaluation of Non-COCs..............................................................................................................7
4.1.3
Active Subtitle D Landfill.................................................................................................................8
4.1.3.1
Evaluation of COCs.....................................................................................................................8
4.1.3.2
Evaluation of Non-COCs..............................................................................................................8
4.1.4
Ternary Plots...................................................................................................................................9
4.2
Evaluation of Naturally Occurring Source..........................................................................................12
4.2.1
Published Data for Constituents of Concern.................................................................................12
,> GOLDER iv

June 30, 2020 19117535.701
4.2.2 Statistical Analysis of Constituents of Concern............................................................................13
4.2.3 Available Facility Soil Data............................................................................................................14
5.0 CONCLUSIONS............................................................................................................................................15
6.0 REFERENCES..............................................................................................................................................16
TABLES
Table 1 Summary of Well Construction Information
Table 2 Historical Static Water Level Data for the Closed Unlined Landfill
Table 3 Historical Static Water Level Data for the Closed Subtitle D Landfill
Table 4 Historical Static Water Level Data for the Active Subtitle D Landfill
Table 5 Summary of Detected Constituents in Monitoring Wells
Table 6 USGS National Geochemical Survey Database Summary
Table 7 Summary of Statistical Analysis
Table 8 Summary of Detected Constituents in Soil Samples
Table 9 Summary of Partitioning Calculations Using Published Partitioning Coefficients
FIGURES
Figure 1 Ternary Plot of Sodium, Calcium, and Magnesium
Figure 2 Ternary Plot of Iron, Calcium, and Sodium
Figure 3 Ternary Plot of Iron, Manganese, and Barium
Figure 4 Ternary Plot of Iron, Manganese, and Potassium
Figure 5 Ternary Plot of Zinc, Cobalt, and Nickel
Figure 6 Probability Plots of Groundwater -Quality Data for Siliciclastic-Rock and Crystalline -Rock in
the Piedmont and Blue Ridge Physiographic Provinces
DRAWINGS
Drawing 1
Groundwater Surface Contour Map — March 02, 2020
APPENDICES
Appendix A
Time Series Plots
Appendix B
Sen's Slope Estimator Plots
Appendix C
Laboratory Certificates -of -Analysis
Appendix D
Statistical Analysis Worksheets
4 GOLDER v

June 30, 2020 19117535.701
1.0 INTRODUCTION
This report presents an alternate source demonstration (ASD) for detections of select inorganic compounds in
compliance groundwater samples in excess of applicable water quality standards at the closed unlined, closed
Subtitle D, and active Subtitle D waste management units at the Hanes Mill Road Landfill in Forsyth County
(facility). This ASD was prepared on behalf of the Winston-Salem / Forsyth County Utility Commission (WSFCU),
in general accordance with the requirements of Title 15A of the North Carolina Administrative Code (NCAC)
Subchapter 13B .1633(C)(3). This ASD has been prepared as proposed in the Update on Addressing Inorganic
Exceedances; Request to Install Additional Background Groundwater Monitoring Wells (Update), which was
approved by the North Carolina (NC) Department of Environmental Quality (DEQ) on September 17, 2018. The
Update was issued in response to the Request for Additional Information (Request) issued by the North Carolina
Department of Environmental Quality (NC DEQ), dated January 18, 2018 to address concentrations of barium and
cobalt in the sample from monitoring well OW-3 at the closed unlined landfill; chromium, and cobalt in samples
from monitoring wells MW-6, MW-7, and MW-11 at the closed Subtitle D landfill; and cobalt in the sample from
monitoring well MW-19 at the active Subtitle D landfill, which were above their respective NC 2L Standards and
Solid Waste Section Limits (SWSLs) during the September 2016 compliance monitoring event.
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, NC, off Hanes Mill Road. The
WSFCU 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 WSFCU 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 WSFCU monitors water quality at the closed, unlined MSW facility by monitoring 10 downgradient monitoring
wells (OW-3, OW-4, OW-6, OW-71DA, OW-1 OD, 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 2021 event. During the other semi-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,
GOLDER

June 30, 2020 19117535.701
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-1 RR,
OW-3, OW-4, OW-10D, OW-12, OW-14D, and OW-17D. Every third year (next events in Marchand September
2021), methane, ethane, and ethene must also be analyzed semi-annually for monitored natural attenuation
(MNA) wells, and every fifth year (next events in March and September 2021), 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
WSFCU initiated corrective action.
The WSFCU 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 the Detection Monitoring Program.
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 WSFCU 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 both lined units and analyzed for the approved NC leachate
parameter list plus other required parameters.
On November 3, 2016, Golder submitted the 14-Day Notification and Alternate Source Demonstration to the NC
DEQ to address concentrations of barium and cobalt in the sample from monitoring well OW-3 at the closed
unlined landfill; arsenic, chromium, and cobalt in samples from monitoring wells MW-6, MW-7, and MW-11 at the
closed Subtitle D landfill; and cobalt in the sample from monitoring well MW-19 at the active Subtitle D landfill,
which were above their respective NC 2L Standards and SWSLs during the September 2016. The NC DEQ
responded with a Request forAdditional Information dated January 18, 2018, which was provided May 21, 2018,
as Response to Alternate Source Demonstration -Request for Additional Information. Based on a follow up letter
GOLDER

June 30, 2020 19117535.701
from the NC DEQ dated June 8, 2018, two additional background wells (MW-23 and MW-24) were installed in
November 2018 to collect additional analytical data over a two-year period to evaluate background concentrations
of inorganic constituents at the closed unlined landfill, closed Subtitle D landfill, and the active Subtitle D landfill.
A summary table of available well construction details is provided as Table 1.
2.0 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
62 feet below grade. Depth -to -water measurements obtained during the March 2020 monitoring event are
summarized in Tables 2 through 4 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. The calculated
hydraulic gradients and rates of groundwater flow are presented in the First Semi -Annual 2020 Water Quality
Monitoring Event Report (Golder, 2020).
3.0 CONSTITUENTS OF CONCERN
Based on the January 18, 2018, Request from the NC DEQ, the constituents of concern (COCs) include barium
and cobalt in the sample from monitoring well OW-3 at the closed unlined landfill; chromium in samples from
MW-11 and cobalt in samples from monitoring wells MW-6 and MW-7 at the closed Subtitle D landfill; and cobalt
in the sample from monitoring well MW-19 at the active Subtitle D landfill, which were above their respective NC
2L Standards and SWSLs during the September 2016 compliance monitoring event. Analytical results for the
COCs in groundwater samples are summarized in Table 5 with available historical data. The COCs for each
landfill are discussed further in the following sections.
3.1 Closed Unlined Landfill
3.1.1 Barium
As presented in Table 4, barium has been detected in the samples from OW-3 at concentrations above the
laboratory practical quantification limit (PQL) and NC 2L Standard consistently since 2006. Barium concentrations
have generally shown a declining trend in samples from OW-3. Similarly, barium has been detected in each of
the closed unlined compliance wells, including background wells MW-1 RR, MW-12, MW-23, and MW-24. A time
series plot of barium concentrations from the OW-3, the facility background wells, and facility leachate is included
in Appendix A. The time series plot shows the visually declining concentrations of barium in the samples from
OW-3. The visual declining trend is reinforced by a statistical trend analysis using Sen's Slope estimator for
4 GOLDER

June 30, 2020 19117535.701
barium concentrations in samples from OW-3 in Appendix B, which indicates a significant decreasing trend.
Table 5 and the barium time series plot also show that the concentrations of barium in the samples from OW-3
are typically two times higher than the concentrations detected in the samples from the facility leachate.
3.1.2 Cobalt
As presented in Table 5, cobalt has been detected in the samples from OW-3 at concentrations above the PQL
and NC 2L Standard consistently since 2006. Cobalt was detected at an estimated concentration below the PQL,
but above the NC 2L Standard in the sample from OW-3 during the most recent sampling event in March 2020.
Cobalt has been sporadically detected at background wells MW-1 RR, MW-12, and MW-24. A time series plot of
cobalt concentrations from OW-3, MW-6, MW-19, the facility background wells, and facility leachate is included in
Appendix A. The cobalt time series plot in Appendix A shows the visually declining concentrations of cobalt in
samples from OW-3. The visually declining trend is reinforced by a statistical trend analysis using Sen's Slope
estimator for cobalt concentrations in samples from OW-3 in Appendix B, which indicates a significant decreasing
trend. In general, Table 5 and the cobalt time series plot show that the concentrations of cobalt in the samples
from OW-3 are typically higher than the concentrations detected in the samples from the facility leachate.
3.2 Closed Subtitle D Landfill
3.2.1 Chromium
As presented in Table 5, chromium has been detected in the samples from MW-11 at concentrations above the
PQL and NC 2L Standard consistently since the baseline sampling was performed in 1997. In fact, the highest
chromium concentration historically detected at MW-11 was before waste disposal, providing strong evidence that
the historical concentrations are unrelated to a release from the closed Subtitle D landfill. Chromium has been
detected in each of the closed Subtitle D compliance wells and background wells MW-1 RR, MW-12, MW-23, and
MW-24. A time series plot of chromium concentrations from MW-11, the facility background wells, and facility
leachate is included in Appendix A. The time series plot shows the visually declining concentrations of chromium
in the samples from MW-11. The visually declining trend is reinforced by a statistical trend analysis using Sen's
Slope estimator for chromium concentrations in samples from MW-11 in Appendix B, which indicates a
decreasing trend. In general, Table 5 and the chromium time series plot show that the concentrations in the
samples from MW-11 are similar to the concentration detected from the facility leachate.
3.2.2 Cobalt
As presented in Table 5, cobalt has been detected in the samples from MW-6 at concentrations above the SWSL
and NC 2L Standard consistently since the baseline sampling was performed in 1997. In fact, the highest cobalt
concentration historically detected at MW-6 was pre -waste disposal, providing strong evidence that the historical
concentrations are unrelated to a release from the closed Subtitle D landfill. Concentrations have generally
shown a declining trend since the initial baseline event. Cobalt has also been detected in the samples from MW-7
at concentrations above the NC 2L Standard consistently since the baseline sampling was performed in 1997.
The concentrations have fluctuated above and below the PQL. Similar to MW-6, the highest cobalt concentration
historically detected at MW-7 was pre -waste disposal, also providing strong evidence that the historical
concentrations are unrelated to a release from the closed Subtitle D landfill. Cobalt has been detected in all of the
closed Subtitle D compliance wells and background wells MW-1 RR, MW-12, MW-23, and MW-24. The time
series plot of cobalt in Appendix A shows the visually declining concentrations of cobalt in the samples from MW-6
and MW-7. The visually declining trend is reinforced by a statistical trend analysis using Sen's Slope estimator for
cobalt concentrations in samples from MW-6 and MW-7 in Appendix B, which indicate decreasing trends. In
4 GOLDER 4

June 30, 2020 19117535.701
general, Table 5 and the cobalt time series plot show that the concentrations of cobalt in the samples from MW-6
are typically higher than the concentrations detected in the samples from the facility leachate and the samples
from MW-7 are typically similar to the concentrations detected in the samples from the facility leachate.
3.3 Active Subtitle D Landfill
3.3.1 Cobalt
As presented in Table 5, cobalt has been detected in the samples from MW-19 at concentrations above the PQL
and NC 2L Standard consistently since 2008. Cobalt has been detected in samples from each of the facility
monitoring wells except MW-20. The time series plot in Appendix A shows the visually declining concentrations of
cobalt in samples from MW-19. The visually declining trend is reinforced by a statistical trend analysis using
Sen's Slope estimator for cobalt concentrations in samples from MW-19 in Appendix B, which indicates a
decreasing trend. In general, Table 5 and the cobalt time series plot show that the concentrations of cobalt in the
samples from MW-19 are typically higher than the concentrations detected in the samples from the facility
leachate.
4.0 POTENTIAL SOURCES
The purpose of this ASD is to evaluate whether a source other than the waste management units is responsible
for the exceedances of applicable groundwater standards in samples from downgradient monitoring wells as
discussed in Section 3.0. Review of the facility operations and geologic setting identified the following
hypothetical sources, to be evaluated herein, for the elevated inorganic constituent concentrations reported in
groundwater samples collected from facility monitoring wells:
The waste management units (i.e., a release from the waste management unit to the uppermost aquifer and
subsurface transport of leachate to the areas where downgradient wells are located)
Metals concentrations in naturally occurring soils and bedrock (i.e., dissolution and/or partitioning of metals
from native soils and/or engineered placed materials to groundwater)
These potential sources are further evaluated in the following sections.
Evaluation of the Waste Management Unit as a Potential Source
Based on a review of recent potentiometric surface data for the facility (Drawing 1) and the positioning of the
monitoring wells near the downgradient extent of landfill cells, it is feasible that a release of solid waste
constituents to groundwater could impact groundwater quality at downgradient monitoring wells.
The closed unlined landfill is not constructed with a leachate collection system and a representative leachate
sample could not be obtained; therefore, analytical data for composite leachate samples from the closed
Subtitle D and active Subtitle D landfills were used to represent the character of the waste management units as a
potential source of COC exceedances. A comparison of recent COC concentrations from recent samples from
facility leachate, background wells, and downgradient wells with groundwater standard exceedances is presented
in the following sections and summarized on Table 5 and the time series plots in Appendix A.
4.1.1 Closed Unlined Landfill
4.1.1.1 Evaluation of COCs
Barium has typically been reported at a higher concentration in representative leachate samples than in samples
from background monitoring wells. However, the concentrations of barium in downgradient groundwater samples
4 GOLDER

June 30, 2020 19117535.701
from well OW-3 are typically twice the concentrations in samples from the facility leachate. Though mixing
models could not be performed due to missing cations and anions, there would be no conceptual scenario in
which the mixing of groundwater from the background wells and the facility leachate could produce concentrations
higher than those observed in the facility leachate, as is the case with OW-3.
Cobalt has historically been detected at higher concentrations in downgradient groundwater samples from OW-3
than samples from the representative leachate. More recently, the concentrations have been similar in samples
from the facility leachate and OW-3. Cobalt has only sporadically been detected in the samples from the
background wells and the concentrations have been less than those observed in samples from OW-3 and the
facility leachate. Similar to barium, the concentrations of cobalt observed in the background wells and the facility
leachate could not conceptually produce the concentrations detected in the samples from OW-3.
4.1.1.2 Evaluation of non-COCs
Comparisons of other inorganic constituents are provided below, though they are not COCs for this investigation.
The comparisons of these constituents in the samples from OW-3, representative leachate, and the background
wells may show trends to determine if OW-3 has been impacted by facility leachate.
Antimony has consistently been detected in samples from the facility leachate since 1994, but has not been
detected in the background wells or downgradient well OW-3 since 2016. The lack of downgradient antimony
detections could indicate that water quality at OW-3 is not being influenced by the facility leachate.
Chromium has historically been detected in the samples from downgradient well OW-3 at estimated
concentrations, but has not been detected during the last three sampling events. Chromium has been detected at
higher concentrations at primarily estimated concentrations in background wells MW-23 and MW-24. The
detections of chromium in the samples from the facility leachate have been at quantifiable concentrations that
have exceeded the concentration observed in OW-3 and the background wells. This comparison indicates that a
mixing of groundwater from the background wells and facility leachate may be possible to generate the chromium
concentrations observed in OW-3
Nickel has consistently been detected in samples from the representative leachate at concentrations higher than
the background wells and OW-3. Nickel has only been sporadically detected in samples from background wells
MW-1 RR and MW-24, but have consistently been detected in samples from MW-23 at concentrations lower than
observed in samples from OW-3 and the facility leachate. This comparison indicates that a mixing of groundwater
from the background wells and facility leachate may be possible to generate the nickel concentrations observed in
OW-3.
Thallium as been routinely detected in samples from OW-3 until the last four sampling events. Thallium has
sporadically been detected in the representative leachate and the background wells. This comparison indicates
that the thallium concentrations in the samples from OW-3 are likely naturally occurring.
Vanadium has consistently been detected in the samples from the representative leachate and have been
detected at lower concentrations in the background wells. Vanadium has not been detected in the samples from
OW-3 since 2011. This could indicate that water quality at OW-3 is not being influenced by the facility leachate.
Lastly, iron and manganese were analyzed from the June 2020 sampling event for the samples from the
background wells, facility leachate, and OW-3, as part of this investigation (Appendix C). The concentrations of
iron and manganese from the sample for OW-3 were higher than their respective concentrations from the sample
of facility leachate and the background wells. The concentrations of iron and manganese observed in the
4 GOLDER

June 30, 2020 19117535.701
background wells and the facility leachate could not conceptually produce the concentrations detected in the
samples from OW-3.
In general, the collective findings presented above do not support a leachate impact as the source of the
concentrations of barium and cobalt observed in OW-3.
4.1.2 Closed Subtitle D Landfill
4.1.2.1 Evaluation of COCs
Chromium has typically been reported at a similar concentration in the samples from the facility leachate and
background well MW-24. The facility leachate concentrations are typically higher than the concentrations from
samples from background wells MW-1 RR, MW-12, and MW-23. The concentrations from MW-11 are similar to
the concentrations from samples from the facility leachate and background well MW-24. The concentrations of
chromium observed in background well MW-24 and the facility leachate could produce the concentrations
detected in the samples from MW-11. The concentrations of chromium observed in background wells MW-1 RR,
MW-12, MW-23 and the facility leachate could not conceptually produce the concentrations detected in the
samples from MW-11. It should be noted that wells MW-1 RR and MW-23 are located upgradient of the closed
Subtitle D landfill and MW-11 and are more likely to represent the water quality that would be mixed with the
facility leachate. The concentrations of chromium in the samples from MW-6 and MW-7 are similar to the
concentrations observed in the samples from the background wells and lower than the concentration detected in
the samples from the facility leachate. The concentrations of chromium observed in the background wells and the
facility leachate could not conceptually produce the concentrations detected in the samples from MW-6 and
MW-7.
Cobalt has historically been detected at higher concentrations in samples from MW-6 than samples from the
facility leachate. More recently, the concentrations have been similar in samples from the facility leachate and
MW-6. Cobalt has historically been similar in concentration in samples from MW-7 and the facility leachate, which
has continued to be the case. Cobalt has only sporadically been detected in the samples from the background
wells and the concentrations have been less than those observed in samples from OW-3 and the facility leachate.
The concentrations of cobalt observed in the background wells and the facility leachate could not conceptually
produce the concentrations detected in the samples from MW-6 and MW-7.
4.1.2.2 Evaluation of Non-COCs
Comparisons of other inorganic constituents are provided below, though they are not COCs for this investigation.
Antimony has consistently been detected in samples from the facility leachate since 1994, but has not been
detected in the background wells or the downgradient wells MW-6 and MW-7 since 2016. This could indicate that
water quality at MW-6 and MW-7 is not being influenced by the facility leachate.
Barium has typically been reported at higher concentrations in facility leachate samples than in samples from
background monitoring wells. The concentrations of barium in samples from MW-6 are typically similar to higher
than the concentrations in samples from the facility leachate. The concentrations of barium in samples from
MW-7 and MW-11 are lower than the concentrations in samples from the facility leachate. The concentrations of
barium observed in the background wells and the facility leachate could not conceptually produce the
concentrations detected in the samples from MW-6, but may be able to produce concentrations detected in the
samples from MW-7 and MW-11.
4 GOLDER

June 30, 2020 19117535.701
Beryllium has consistently been detected at estimated concentrations in samples from well MW-7, but has only
been sporadically detected in samples from the background wells, facility leachate, MW-7, and MW-11. The
concentrations of beryllium observed in the background wells and the facility leachate could not produce the
concentrations detected in the samples from MW-7.
Nickel has consistently been detected in samples from the facility leachate at concentrations higher than the
background wells and downgradient wells MW-6, MW-7, and MW-11. Well MW-6 has historically been non -detect
for nickel and MW-7 has had sporadic detections. Nickel has routinely been detected in samples from MW-11 at
concentration lower than those in samples from the facility leachate. This comparison indicates that a mixing of
groundwater from the background wells and facility leachate to generate the nickel concentrations observed in in
samples from MW-7 and MW-11 may be possible.
Vanadium has consistently been detected in the samples from the facility leachate and have been detected at
lower concentrations in the background wells. Recently, vanadium has not been detected in the samples from
MW-6, MW-7, and MW-11. This could indicate that water quality at MW-6, MW-7, and MW-11 is not being
influenced by the facility leachate.
Lastly, iron and manganese were analyzed from the June 2020 sampling event for the samples from the
background wells, facility leachate, and the downgradient wells MW-6 and MW-11, as part of this investigation
(Appendix C). The concentrations of iron and manganese in the sample from MW-6 were higher than the
respective concentrations from the sample of facility leachate. The concentrations of iron and manganese in the
sample from MW-11 and the background wells were lower than the concentration in the sample from the facility
leachate. The concentrations of iron and manganese observed in the background wells and the facility leachate
could not conceptually produce the concentrations detected in the samples from MW-6, but could conceptually
produce the concentrations in the samples from MW-11.
In general, the collective findings presented above do not support a leachate impact as the source of the
concentrations of chromium observed in the samples collected from MW-11 and cobalt observed in the samples
collected from MW-6 and MW-7.
4.1.3 Active Subtitle D Landfill
4.1.3.1 Evaluation of COCs
Cobalt has historically been detected at higher concentrations in samples from MW-19 than samples from the
facility leachate. Cobalt has only sporadically been detected in the samples from the background wells and the
concentrations have been less than those observed in samples from MW-19 and the facility leachate. The
concentrations of cobalt observed in the background wells and the facility leachate could not conceptually
produce the concentrations detected in the samples from MW-19.
4.1.3.2 Evaluation of Non-COCs
Comparisons of other inorganic constituents are provided below, though they are not COCs for this investigation
Antimony has consistently been detected in samples from the facility leachate since 1994, but has not been
detected in the background wells since 2016 and has not been detected in the samples from MW-19 since 2009
This could indicate that water quality at MW-19 is not being influenced by the facility leachate.
Barium has typically been reported at a higher concentration in facility leachate samples than in samples from
background monitoring wells and MW-19. The concentrations of barium in samples from well MW-19 are similar
to the concentrations in samples from the background wells. This comparison indicates that a mixing of
4 GOLDER

June 30, 2020 19117535.701
groundwater from the background wells and facility leachate may be possible to generate the barium
concentrations observed in MW-19.
Chromium has sporadically been detected in the samples from MW-19 at estimated concentrations, but has not
been detected during the last six sampling events. Chromium has been detected at higher concentrations at
primarily estimated concentrations in background wells MW-23 and MW-24. The detections of chromium in the
samples from the facility leachate have been at quantifiable concentrations that have exceeded the concentration
observed in MW-19 and the background wells. This could indicate that water quality at MW-19 is not being
influenced by the facility leachate.
Nickel has consistently been detected in samples from the facility leachate at concentrations higher than the
background wells and MW-19. The concentrations of nickel in the samples from MW-19 are similar to the
concentrations detected in background well MW-23. This comparison indicates that a mixing of groundwater from
the background wells and facility leachate may be possible to generate the nickel concentrations observed in
MW-19.
Vanadium has consistently been detected in the samples from the facility leachate and have been detected at
lower concentrations in the background wells. Recently, vanadium has historically been detected in samples from
MW-19 at concentrations similar to the background wells, but has not been detected in the samples from MW-19
during the last three sampling events. These recent events could indicate that water quality at MW-19 is not being
influenced by the facility leachate.
Lastly, iron and manganese were analyzed from the June 2020 sampling event for the samples from the
background wells, facility leachate, and the MW-19, as part of this investigation (Appendix C). The concentrations
of iron from samples MW-19 were higher than the concentrations from the sample of facility leachate and the
background wells. This comparison indicates that a mixing of groundwater from the background wells and facility
leachate may be possible to generate the iron concentrations observed in MW-19.
The concentration of manganese in samples from MW-19 was lower than the concentration from the facility
leachate, but higher than the concentration from the background wells. Due to the similarity in concentration of
manganese in the samples from MW-19 and the facility leachate, it is unlikely that water quality at MW-19 is being
impacted by the facility leachate.
In general, the collective findings presented above does not support a leachate impact as the source of the
concentrations of cobalt observed in MW-19.
4.1.4 Ternary Plots
A ternary plot is a barycentric plot on three variables which sum to a constant and graphically depicts the ratios of
three variables as positions in an equilateral triangle. To evaluate landfill leachate as a potential source of barium
in samples from OW-3, chromium in samples from MW-11, and cobalt in samples from OW-3, MW-6, and MW-19,
Golder prepared a series of ternary plots of various cations to illustrate the variability in the geochemistry of the
water from the wells of interest, the background wells, and the facility leachate.
The first plot evaluates sodium, magnesium, and calcium on Figure 1 below. The plot shows that the sample from
MW-6 plots near to the sample from background well MW-1 RR. The sample from MW-19 blots between
background wells MW-1 RR and MW-12. The sample from MW-11 plots near to background wells MW-23 and
MW-24. The sample from OW-3 plots near the facility leachate sample, but shows a lower percentage of sodium.
GOLDER

June 30, 2020
Figure 1: Ternary plot of sodium, calcium, and magnesium
O Mw-1RR
O MW-12
MW-23
p
60
MW-24
0 OW-3
MW-1RR
NW-
a MW-6
% VW-11
fi MW_19
60 Mtn 19 o p '
Leachate
P y0 TO,
< Na'
qq megn
19117535.701
The second plot evaluates iron, sodium, and calcium on Figure 2 below. The plot shows that the sample from
MW-11 plots near to the sample from background well MW-1 RR. The sample from OW-3 once again plots near
the facility leachate sample, but has a lower percentage of iron and a higher percentage of sodium. Samples from
MW-6 and MW-19 each plot individually and show no relation to the background wells or the facility leachate.
Figure 2: Ternary plot of iron, calcium, and sodium
MW-IRR
0 MW-12
A MW-23
V MW-24
0 ow-3
° MW-6
% MW-11
MW-19
• Leachate
- Fe"
% me(In
The third plot evaluates iron, manganese, and barium on Figure 3. The plot shows that samples from MW-6 and
MW-19 plot near to the facility leachate sample with higher percentages of iron and lower percentages of
manganese. The sample from OW-3 plots by itself with the sample from background well MW-12 plotting
between OW-3 and the facility leachate. The sample from MW-11 plots by itself with the sample from background
well MW-24 plotting between MW-11 and the facility leachate.
4 GOLDER 10

June 30, 2020
Figure 3: Ternary plot of iron, manganese, and barium
M MW_11
" MW_24
F `So vo
d Fe"
% megI
G MW-1RR
O MW-12
MW-23
0 MW-24
O OW-3
° MW-6
% MW-11
MW-19
■ Leachale
19117535.701
The fourth plot evaluates iron, manganese, and potassium on Figure 4 below. The plot shows background wells
MW-12 and MW-24 plotting in close proximity to the facility leachate sample. The sample from MW-11 plots
between background wells MW-1 RR and MW-23. Wells MW-6 and MW-19 plot close to one another with higher
percentages of iron than the facility leachate sample. The sample from OW-3 plots by itself with higher
percentages of iron and manganese and a lower percentage of potassium than the facility leachate sample. The
sample from background well MW-12 plots between OW-3 and the facility leachate.
Figure 4: Ternary plot of iron, manganese, and potassium
13 MW-1RR
O MW-12
MW-23
MW-24
4 OW-3
o MW-6
H MW-11
MW-19
■ Leaahale
Fe'*
% megll
The fifth plot evaluates zinc, cobalt, and nickel on Figure 5 below. The sample from MW-11 plots close to
background well MW-23. Samples from OW-3, MW-6, and MW19 plot individually and away from the facility
leachate. Background wells MW-1 RR and MW-12 were non -detect for all three cations and are not plotted.
GOLDER 11

June 30, 2020 19117535.701
Figure 5: Ternary plot of zinc, cobalt, and nickel
it ' MVV-23 I
MW-24
OW-3
8
° MW-6
80
8 MW-1A
MW-19
E LCiC11aAe
60
140�Z
2
Lea "Me
i
MW 4 PAW_23AV-11
r
q6 �C
E Zn"
—
% megn
The results of the ternary plots are generally inconclusive. The plots on Figures 1 and 2 indicate that the sample
from OW-3 has a similar geochemistry as the facility leachate, but plots on Figures 3, 4, and 5 do not indicate a
similar geochemistry. Figure 3 indicates that the samples from MW-6 and MW-19 have a similar geochemistry as
the facility leachate, but that is not confirmed on the plots on Figures 1, 2, 4, and 5. Figure 4 indicates that the
samples from background wells MW-12 and MW-24 are most similar to the facility leachate and Figure 5 shows
no similarities to the facility leachate and the samples from the background and downgradient wells.
4.2 Evaluation of Naturally Occurring Source
The concentrations of barium in samples from OW-3, chromium in samples from MW-11, and cobalt in samples
from OW-3, MW-6, MW-7, and MW-19 may be from natural sources such as non -impacted groundwater upstream
of the wells of interest that have leached the inorganic constituents from soil and bedrock. In order to evaluate a
natural source, published water quality data was researched and statistical analysis of facility water quality data
was performed.
4.2.1 Published Data for Constituents of Concern
Available published reports indicate that the COCs are found to be naturally occurring at concentrations similar to
the detections in the downgradient wells of interest at the Hanes Mill Road Landfill. Probability plots of
groundwater quality in Naturally Occurring Contaminants in the Piedmont and Blue Ridge Crystalline -Rock
Aquifers and Piedmont Early Mesozoic Basin Siliciclastic-Rock Aquifers, Eastern United States, 1994-2008 were
evaluated for the COCs (Chapman, 2013). The probability chart for barium shows that concentrations similar to
those in samples from OW-3(-1000 ug/L) are expected to be exceeded in approximately ninety-five percent of the
samples in crystalline -rock aquifers. The probability chart for chromium shows that concentrations similar to those
in samples from MW-11(-10 ug/L) are expected to be exceeded in approximately fifty percent of the samples in
crystalline -rock aquifers. The probability chart for cobalt shows that concentrations similar to those in samples
from OW-3, MW-6, MW-7, and MW-19 (-20 ug/L) are expected to be exceeded in approximately forty percent of
the samples in crystalline -rock aquifers.
4 GOLDER 12

June 30, 2020 19117535.701
Figure 6: Probability plots of groundwater -quality data for siliciclastic-rock and crystalline -rock in the Piedmont and Blue Ridge
Physiographic Provinces (Chapman, 2013)
EXPLANATION
Crystalline
siliciclastic
2,11M
1,000
5oa
E 100
50
E
E
10
m
EXPLANATION
Crystalline
-` -�.— Silicinlastic
100
50
10
E 5
E 1
c� 05
t
EXPLANATION
Crystalline
siliciclastic
U.5 I 0 05 1.0
Frequency concentration was exceeded
The United States Geological Survey (USGS) National Geochemical Survey Database was researched for the
COCs. Twelve sediment samples collected within 20 miles of the Hanes Mill Road Landfill were present and the
results are included as Table 6. As shown, barium concentrations range from 65 ppm to 2630 ppm. Chromium
concentrations range from 3 ppm to 79 ppm and cobalt concentrations range from non -detect to 36 ppm. While a
direct comparison between sediment sample concentrations and groundwater concentrations cannot be made,
these data show that the aforementioned inorganic constituents do occur naturally in stream sediment. Therefore,
they are likely to occur in subsurface soil at the Hanes Mill Road Landfill at concentrations that would account for
the concentrations of these constituents in groundwater.
4.2.2 Statistical Analysis of Constituents of Concern
The Summary of Statistical Analysis (Table 7) summarizes the statistical methods and results used to determine
an appropriate background concentration for inorganic compounds detected at concentrations above the PQLs
and NC 2L Standards or Interim Maximum Concentration (IMAC) in samples from downgradient monitoring wells
at the closed unlined landfill, closed Subtitle D landfill, and active Subtitle D landfill during recent sampling events.
The statistical analyses were completed using WQStat software in accordance with 40 CFR 258 and Title 15A
NCAC 13B .1632(f) through (h). Per NC DEQ guidance, only samples that were collected with turbidity values of
less than 10 Nephelometric Turbidity Units (NTU) were used in statistical analysis. The statistical summary
sheets generated during the statistical analysis are included as Appendix D.
Historical analytical data for barium, chromium, and cobalt from upgradient wells MW-1 RR, MW-12, MW-23, and
MW-24 were used to perform inter -well statistics. These data were used to establish background concentrations
for barium, chromium, and cobalt at the closed unlined landfill, closed Subtitle D, and active Subtitle D landfill.
The inter -well background statistical limits for barium and chromium were based on upper parametric prediction
limits and cobalt was based on the non -parametric prediction limit as allowed under Title 15A NCAC 13B .1632
(g)(3). The barium concentration in the sample from OW-3; the chromium concentration in the sample from
MW-11; and the cobalt concentrations in the samples from OW-3, MW-6, MW-7, and MW-19 from the June 2020
sampling event were above the background concentrations calculated by inter -well statistical methods. It should
be noted that pre -waste analytical data, which are higher than the current concentrations from the wells listed
above, were not used in inter -well statistical analyses because turbidity values are not available for those results.
.4li GOLDER 13

June 30, 2020 19117535.701
Inter -well statistics does not account for spatial variability of the aquifer. Intra-well statistics is a method to
account for spatial variability per the Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities -
Unified Guidance (EPA, 2009). The data sets utilized for intra-well statistics show downward concentration
trends, which supports the use of this statistical method. As with the inter -well statistics, pre -waste analytical data
were not used in intra-well statistical analyses because turbidity values are not available for those results. Intra-
well statistics was not utilized for OW-3 since the closed unlined landfill is an unlined facility. However, the Sen's
Slope estimator was utilized to evaluate the concentration trends of the COCs from OW-3 (Appendix B). The
Sen's Slope estimator for barium and cobalt concentrations at OW-3 indicate significant downward trends of both
constituents.
Intra-well statistics was utilized for the chromium concentrations at MW-11 and cobalt concentrations at MW-6
and MW-7 at the closed Subtitle D landfill. The intra-well background statistical limits for chromium at MW-11 and
cobalt at MW-6 and MW-7 were based on upper parametric prediction limits as allowed under Title 15A NCAC
13B .1632 (g)(3). The March 2020 concentrations for chromium at MW-11 and cobalt at MW-6 and MW-7 were
determined to be below statistically determined background values. The Sen's Slope estimator was utilized to
evaluate the concentration trends of chromium at MW-11 and cobalt at MW-6 and MW-7 (Appendix B). The Sen's
Slope estimator for chromium at MW-11 and cobalt at MW-6 indicate significant downward trends. The Sen's
Slope estimator for cobalt at MW-7 indicates downward trend in concentrations, but was determined to be
statistically insignificant.
Based on the intra-well statistical analysis included as Appendix D, the following well -specific groundwater
protection standards (GPS) are proposed:
GPS for chromium at MW 11 of 18.9 ug/L
GPS for cobalt at MW 6 of 20.0 ug/L
GPS for cobalt at MW 7 of 29.9 ug/L
Intra-well statistics was not utilized for MW-19 at the active Subtitle D landfill because there was an insufficient
amount of data for statistical evaluation from samples with turbidity values less than 10 NTU. However, the Sen's
Slope estimator was utilized to evaluate the concentration trends of cobalt from MW-19 (Appendix B). The Sen's
Slope Estimator for cobalt concentrations at MW-19 indicate significant downward trend; though, as stated, an
insufficient amount of data is present to statistically evaluate the data.
4.2.3 Available Facility Soil Data
Over the years, shallow soil samples have been collected at the Hanes Mill Road Landfill as part of various
investigations. Analytical results of the COCs from soil samples that were initially collected to provide background
concentrations are summarized as Table 8. The locations of the soil samples are shown on Drawing 1. The soil
sample results show barium concentrations ranging from 66.1 to 148 milligrams per kilogram (mg/kg/dry),
chromium concentrations ranging from 37.1 to 49.2 mg/kg/dry, and cobalt concentrations ranging from 5.26 to
15.7 mg/kg/dry. It should be noted that all of the cobalt concentrations exceeded the Protection of Groundwater
Soil Remediation Goals and the Preliminary Residential Health -Based Goals. There is an apparent correlation
between the measured soil COC concentrations from background soil samples and measured groundwater COC
concentrations from samples from downgradient wells of interest.
To evaluate reasonably expected concentrations of COCs in groundwater produced as a result of leaching from
the soil samples, soil -to -groundwater partitioning calculations for barium, chromium, and cobalt were performed,
4 GOLDER 14

June 30, 2020
19117535.701
and are presented in Table 9. A literature search of partitioning coefficients (Kd) was performed, which resulted in
wide range of Kd values for a given constituent, which are summarized in Table 9. Partitioning calculations were
performed using the range of published Kd values and are presented as Table 9. The maximum concentrations
of the COCs in historical groundwater samples for the facility are within or less than the simulated range utilizing
the published Kd values, which indicates that the concentrations of the COCs in the soil samples is capable of
leaching into groundwater at concentrations within the range observed in samples form OW-3, MW-6, MW-7,
MW-11, and MW-19. This finding supports a hypothetical naturally occurring source of the COCs in groundwater.
5.0 CONCLUSIONS
The following evaluations indicate that the source of above -standard concentrations of COCs in groundwater
samples collected from downgradient monitoring wells at the Hanes Mill Road Landfill are not related to a release
from the waste management units at the facility:
Barium has been detected in samples from OW-3 at concentrations that are typically more than 2 times
higher than the concentrations detected in samples from the representative leachate
Chromium has been detected in samples from MW-11 at concentrations that are similar to the
concentrations detected in samples from the facility leachate. Chromium has been detected in samples from
the background wells at concentrations lower than the concentrations detected in MW-11. Therefore, a
mixture of facility leachate and groundwater from the backgrounds is not likely to produce the concentrations
observed in the samples from MW-11.
Cobalt has been detected in samples from OW-3, MW-6, MW-7, and MW-19 at concentrations that are
similar to higher than the concentrations detected in samples from the facility leachate. Cobalt has been
sporadically detected in samples from the background wells. Therefore, a mixture of facility leachate and
groundwater from the backgrounds is not likely to produce the concentrations observed in the samples from
OW-3, MW-6, MW-7, and MW-19.
The ternary plots are inconclusive showing that the geochemistry of the facility leachate can be similar to
wells OW-3, MW-6, and MW-19, but can also be similar to background wells MW-12 and MW-24
Published data indicate that the concentrations of the COCs detected in wells OW-3, MW-6, MW-7, MW-11,
and MW-19 are within the range of naturally occurring concentrations in crystalline -rock groundwater in the
Piedmont Physiographic Province.
Time Series plots and Sen's Slope estimator plots show that all of the COCs show a declining trend in
concentrations
Intra-well statistics indicate that concentrations of the COCs at the closed Subtitle D landfill are below
calculated background concentrations. Intra-well accounts for the spatial variability of the site. Intra-well
statistics was not performed for OW-3 because the closed unlined landfill does not have a liner. Intra-well
statistics was not performed for MW-19 at the active Subtitle D landfill because there is not currently enough
data with turbidity of less than 10 NTU.
Soil partitioning calculations using historic soil data indicate that the COCs are present in the facility soils at
concentrations capable of generating concentrations in groundwater that have been detected in wells OW-3,
MW-6, MW-7, MW-11, and MW-19
GOLDER 15

June 30, 2020 19117535.701
Based on the information above, the WSFCU proposes the following actions at the facility:
No further action for the groundwater standards for barium and cobalt at OW-3 at the closed unlined landfill
Implement groundwater protection standards (GPS) based on the intra-well statistical calculations as follows:
GPS for chromium at MW-11 of 18.9 ug/L
GPS for cobalt at MW-6 of 20.0 ug/L
GPS for cobalt at MW-7 of 29.9 ug/L
Allow additional 3 years to acquire additional cobalt data from MW-19 during routine sampling events to
establish a GPS
Based on the evaluations and conclusions presented herein, and in the absence of other indicators for a release
of solid waste constituents to the uppermost aquifer, the WSFCU requests approval of this ASD and proposes no
further actions other than the establishment of a GPS for cobalt at MW-19 at the end of the three-year period.
V.0 REFERENCES
Allison, Jerry D. and Terry L. Allison. 2005. Partition Coefficients for Metals in Surface Water, Soil, and Waste.
Office of Research and Development, United States Environmental Protection Agency. July.
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.
Chapman, Melinda J. and others. 2013. Naturally Occurring Contaminants in the Piedmont and Blue Ridge
Crystalline -Rock Aquifers and Piedmont Early Mesozoic Basin SiIiciclastic-Rock Aquifers, Eastern United States,
1994-2008. National Water -Quality Assessment Program, United States Environmental Protection Agency.
EPA. 1996. Soil Screening Guidance: Technical Background Document, Second Edition. Office of Emergency
and Remedial Response, United States Environmental Protection Agency, Washington, D.C., Publication:
9355.4-17A. May.
EPA. 2005b. Guidance for Developing Soil Screening Levels. Office of Solid Waste and Emergency Response,
United States Environmental Protection Agency, Washington, D.C., OSWER Directive 9285.7-55. March.
EPA. 2009. Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities - Unified Guidance, United
States Environmental Protection Agency, Washington, D.C., EPA 530-R-09-007. March.
EPA. 2018. Regional Screening Levels (RSL) Chemical -specific Supporting Table.
https://www.epa.gov/risk/regional-screening-levels-rsIs-generic-tables. May.
Golder Associates NC, Inc. 2013. Soil, Surface Water, and Groundwater Sampling Report; Hanes Mill Road
Landfill, Permit No. 34-02. October 3.
Golder Associates NC, Inc. 2016. Soil Sampling and Analysis Report; Hanes Mill Road Landfill, Permit No. 34-02.
February 19.
GOLDER 16

June 30, 2020
19117535.701
Golder Associates NC, Inc. 2016. Soil and Surface Water Sampling and Analysis Report; Hanes Mill Road
Landfill, Permit No. 34-02. August 10.
Golder Associates NC, Inc. 2020. First Semi -Annual 2018 Water Quality Monitoring Event Report; Hanes Mill
Road Landfill, Permit No. 34-02. May 4.
HDR, November 2003. Assessment of Corrective Measures Report, Hanes Landfill, Winston-Salem, North
Carolina.
Heath, Ralph C. 1982. Basic Ground -Water Hydrology. USGS Water Supply Paper 2220.
NCGS (North Carolina Geologic Survey). 1985. Geologic Map of North Carolina.
Shacklette, H.T., and J.G. Boerngen. 1984. Element Concentrations in Soils and Other Surficial Materials in the
Conterminous United States. United States Geological Survey Professional Paper 1270. United States
Government Printing Office.
Stenge, D.L. and S.R. Peterson. 1989. Chemical Data Bases for the Multimedia Environmental Pollutant
Assessment System (MEPAS): Version 1. Battelle Memorial Institute. December.
USGS National Geochemical Survey Database, http://mrdata.usgs.gov/geochem/, 2016.
GOLDER 17

June 30, 2020
Signature Page
Golder Associates NC, Inc.
David "Dusty" Y. Reedy II, PG Jeffrey D. Frazier, PG
Senior Hydrogeologist Senior Consultant
Engineering Lic. No. C-2862/Geology Lic. No. C-399
19117535.701
Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity.
Golder and the G logo are trademarks of Golder Associates Corporation.
https://golderassociates.sharepoint.com/sites/123522/19117535 20192020 fy/phase 701 - asd addendum/200 deliverables/252 final/19117535.701-001-r-rev0-hanes_asd.docx
4 GOLDER 18

Tables

June 2020
19117535.701
TABLE 1
Summary of Well Construction Information
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Ground
Measuring
Well
Construction
Coordinates
Surface
Point
Well
Well
Screened
Geologyof
Diameter
Depth
Interval
Screened
Identification
Date
Elevation
Elevation
(in)
(ft bgs)
(ft bgs)
Interval
Northing
Easting
(ft AMSL)
(ft AMSL)
Closed Unlined Landfill Monitoring Wells
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
Closed Subtitle D Landfill Monitoring Wells
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-23
11/27/2018
892005.23
1620008.33
880.00
883.4
2
42.0
32.0-42.0
Saprolite
Active Subtitle D Landfill Monitoring Wells
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
MW-24
11/27/2018
891530.40
1616933.96
826.6
829.19
2
15.0
5.0-15.0
Saprolite
Notes: ft AMSL = feet above mean sea level
ft bgs = feet below ground surface
PWR = partially weathered rock
in = inches
Well construction information collected from HDR historical reports.
Well MW-9 was re -surveyed after repairs were made in September 2011.
,,> GOLDER 10f1

June 2020
19117535.701
TABLE 2
Historical Static Water Level Data for the Closed Unlined Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Closed Unlined Landfill
Monitoring Wells
MW-1RR
OW-3
OW-4
OW-6
OW-7DA
OW-10D
OW-11
OW-12
OW-13D
OW-14D
OW-17D
TOC Elevation
896.82
820.13
809.37
827.12
801.52
820.09
806.69
800.14
806.41
803.95
800.47
ft AMSL
Elevation DTW
Elevation
DTW
Elevation DTW
Elevation
DTW
Elevation
DTW
Elevation DTW
Elevation
DTW
Elevation
DTW
Elevation DTW
Elevation
DTW
Elevation DTW
Date
(ft AMSL) (ft)
(ft AMSL)
(ft)
(ft AMSL) (ft)
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL) (ft)
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL) (ft)
(ft AMSL)
(ft)
(ft AMSL) (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
03/06/17
854.61 42.21
811.63
8.50
802.52 6.85
807.26
19.86
795.42
6.10
800.27 19.82
802.40
4.29
795.23
4.91
799.65
6.76
799.24
4.71
795.11
5.36
04/05/17
854.70 42.12
811.86
8.27
803.08 6.29
807.51
19.61
796.66
4.86
800.81 19.28
802.79
3.90
796.29
3.85
800.09
6.32
800.46
3.49
795.74
4.73
09/11/17
856.27 40.55
811.68
8.45
802.00 7.37
806.08
21.04
794.22
7.30
798.13 21.96
800.30
6.39
792.87
7.27
798.21
8.20
797.77
6.18
793.54
6.93
03/05/18
854.29 42.53
811.79
8.34
802.46 6.91
807.10
20.02
796.03
5.49
799.87 20.22
802.00
4.69
794.92
5.22
799.40
7.01
799.39
4.56
794.82
5.65
12/11/18
855.99 40.83
811.91
8.22
803.25 6.12
809.27
17.85
797.52
4.00
801.32 18.77
803.33
3.36
795.51
4.63
800.98
5.43
800.56
3.39
795.75
4.72
09/23/19
858.97 37.85
811.54
8.59
802.03 7.34
807.16
19.96
794.06
7.46
798.28 21.81
800.45
6.24
792.29
7.85
798.84
7.57
797.75
6.20
793.39
7.08
03/04/19
858.22 38.60
812.12
8.01
804.23 5.14
811.46
15.66
798.00
3.52
802.78 17.31
804.41
2.28
797.38
2.76
802.63
3.78
801.27
2.68
796.53
3.94
03/02/20
858.76 38.06
811.92
8.21
803.56 5.81
810.73
16.39
797.10
4.42
801.84 18.25
803.66
3.03
796.22
3.92
801.63
4.78
800.62
3.33
795.72
4.75
MEAN
855.47 41.35
811.58
8.55
802.82
6.55
807.90
19.22
795.54
5.98
799.95 20.14
802.04
4.65
794.44
5.70
799.70
6.71
799.42 4.53
794.70
5.77
MAXIMUM
858.97 46.91
812.12
9.16
804.23
7.76
811.46
21.89
798.00
7.94
802.78 22.66
804.41
7.10
797.38
8.31
802.63
9.00
801.27 6.55
796.53
7.82
MINIMUM
849.91 37.85
810.97
8.01
801.61
5.14
805.23
15.66
793.58
3.52
797.43 17.31
799.59
2.28
791.83
2.76
797.41
3.78
797.40 2.68
792.65
3.94
Notes: AMSL = above mean sea level
ft = feet
DTW - depth to water
TOC = top of casing
MW = monitoring well
OW = observation well
III,>GOLDER
1 of 1

June 2020
TABLE 3
Historical Static Water Level Data for the Closed Subtitle D Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
19117535.701
Closed Subtitle D Landfill
Monitoring Wells
MW-6
MW-6D
MW-7
MW-8
MW-9
MW-11
MW-23
TOC Elevation
867.78
867.89
845.33
836.91
843.60
845.23
883.40
ft AMSL
Elevation
DTW
Elevation
DTW
Elevation
DTW
Elevation DTW
Elevation
DTW
Elevation
DTW
Elevation DTW
Date
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL) (ft)
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL) (ft)
11 /06/06
839.72
28.06
839.36
28.53
829.10
16.23
825.91 11.00
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
--
--
03/06/17
839.18
28.60
839.38
28.51
829.03
16.30
825.98 10.93
820.66
22.94
824.32
20.91
--
--
09/11/17
839.63
28.15
839.21
28.68
828.56
16.77
825.56 11.35
820.06
23.54
823.86
21.37
--
--
03/05/18
839.59
28.19
839.20
28.69
829.11
16.22
826.29 10.62
815.95
27.65
824.46
20.77
--
--
12/11/18
840.74
27.04
840.33
27.56
830.06
15.27
826.86 10.05
821.75
21.85
826.64
18.59
844.69
38.71
03/04/19
842.02
25.76
841.62
26.27
831.90
13.43
827.36 9.55
822.75
20.85
829.26
15.97
847.44
35.96
09/23/19
840.52
27.26
840.13
27.76
828.44
16.89
825.40 11.51
819.92
23.68
824.42
20.81
846.17
37.23
03/02/20
842.13
25.65
841.69
26.20
830.66
14.67
826.65 10.26
822.21
21.39
828.64
16.59
846.60
36.80
MEAN
840.06
27.72
839.68
28.21
829.19 16.14
825.89 11.02
821.10
22.50
825.25
19.98
846.23
37.18
MAXIMUM
842.13
28.93
841.69
29.39
831.90 18.04
827.36 12.31
823.02
27.65
829.26
22.43
847.44
38.71
MINIMUM
838.85
25.65
838.50
26.20
827.29 13.43
824.60 9.55
815.95
20.58
822.80
15.97
844.69
35.96
Notes: AMSL = above mean sea level
ft = feet
DTW - depth to water
TOC = top of casing
MW = monitoring well
OW = observation well
MW-23 was installed in November 2018 and the groundwater elevation for December 2018 was measured on December 14, 2018.
,,> GOLDER 10f1

June 2020
19117535.701
TABLE 4
Historical Static Water Level Data for the Active Subtitle D Landfill
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Active Subtitle D Landfill
Monitoring Wells
MW-12
MW-13
MW-14
MW-15
MW-16
MW-17
MW-18
MW-19
MW-20
MW-21
MW-22
MW-24
TOC Elevation
939.05
820.41
814.53
803.32
798.58
801.18
808.5
811.35
831.91
890.40
815.70
829.19
ft AMSL
Elevation
DTW
Elevation DTW
Elevation DTW
Elevation
DTW
Elevation
DTW
Elevation
DTW
Elevation
DTW
Elevation
DTW
Elevation DTW
Elevation DTW
Elevation
DTW
Elevation
DTW
Date
(ft AMSL)
(ft)
(ft AMSL) (ft)
(ft AMSL) (ft)
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL)
(ft)
(ft AMSL) (ft)
(ft AMSL) (ft)
(ft AMSL)
(ft)
(ft AMSL)
(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
--
--
03/06/17
879.59 59.46
799.77 20.64
795.01 19.52
793.92
9.40
792.89
5.69
796.27
4.91
800.29
8.23
804.28
7.07
819.05 12.86
845.31 45.09
801.52
14.18
--
--
09/11 /17
879.05 60.00
798.61 21.80
794.13 20.40
792.87
10.45
791.56
7.02
795.77
5.41
800.05
8.47
803.97
7.38
816.93 14.98
845.48 44.92
800.22
15.48
--
--
03/05/18
878.79 60.26
800.00 20.41
794.94 19.59
793.90
9.42
792.83
5.75
796.37
4.81
800.46
8.06
804.36
6.99
818.60 13.31
844.57 45.83
801.08
14.62
--
--
12/11 /18
878.58 60.47
800.38 20.03
795.53 19.00
794.40
8.92
793.62
4.96
797.03
4.15
800.54
7.98
804.61
6.74
819.42 12.49
845.96 44.44
802.23
13.47
824.85
4.34
03/04/19
880.06 58.99
801.83 18.58
796.61 17.92
795.91
7.41
793.63
4.95
797.71
3.47
801.03
7.49
805.17
6.18
821.52 10.39
847.56 42.84
803.28
12.42
825.59
3.60
09/23/19
883.80 55.25
798.48 21.93
793.82 20.71
792.67
10.65
791.06
7.52
795.77
5.41
800.12
8.40
804.06
7.29
817.38 14.53
850.70 39.70
800.38
15.32
824.28
4.91
03/02/20
883.83 55.22
801.17 19.24
795.53 19.00
794.61
8.71
793.78
4.80
797.29
3.89
800.76
7.76
803.30
8.05
819.50 12.41
849.48 40.92
802.65
13.05
825.20
3.99
MEAN
879.04
60.01
800.00 20.41
794.81 19.72
793.79
9.53
792.44
6.14
796.09
5.09
800.39
8.13
804.30
7.05
818.69 13.22
845.74 44.66
801.46
14.24
824.98
4.21
MAXIMUM
883.83
62.23
801.99 22.16
796.61 20.87
795.91
10.96
793.93
7.90
797.71
9.08
801.48
8.71
805.17
8.05
821.76 15.61
850.70 47.25
803.28
16.02
825.59
4.91
MINIMUM
876.82
55.22
798.25 18.42
793.66 17.92
792.36
7.41
790.68
4.65
792.10
3.47
799.81
7.04
803.30
6.18
816.30 10.15
843.15 39.70
799.68
12.42
824.28
3.60
Notes: AMSL = above mean sea level
ft = feet
DTW - depth to water
TOC = top of casing
MW = monitoring well
OW = observation well
MW-24 was installed in November 2018 and the groundwater elevation for December 2018 was measured on December 17, 2018.
,,> GOLDER
1 of 1

June 2020
TABLE 5
19117535.701
Summary of Detected Constituents in Monitoring Wells
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Closed
Closed
Active
Unlined &
Active
Detected MonitoringSample
p
NC2L/
Practical
SWS
Closed
Subtitle D
Supplemental
Upgradient
Unlined
Down-
Closed
Subtitle
D Downgradient
Subtitle D
Down-
Constituents/Analytes
Units
Date
IMAC
EPA MCL
MDL
Quantitation
Reporting
Subtitle D
U radient
pg
gradient
gradient
Leachate
Blanks
Limit
Limit
Upgradient
MW-1 RR
MW-12
MW-23
MW-24
OW-3
MW-6
MW-7
MW-11
MW-19
Antimony
ug/L
10/07/09
1
6
--
--
6
0.360
B
ND
--
--
0.174
B 0.321
B
0.273
B
0.272
B
0.271 B
2.10 J
0.182
J
ug/L
03/16/10
1
6
--
--
6
ND
ND
--
--
ND
ND
ND
ND
ND
1.12 J
ND
ug/L
09/07/10
1
6
--
--
6
ND
ND
--
--
ND
0.478
J
ND
ND
ND
ND
ND
ug/L
03/23/11
1
6
--
--
6
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/12/11
1
6
--
--
6
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/12/12
1
6
--
--
6
ND
0.879
J
--
--
ND
1.31
J
0.249
J
ND
ND
3.06 J
ND
ug/L
10/01/12
1
6
--
--
6
0.454
B
N D
--
--
0.368
B 0.835
J
N D
0.384
J
N D
N D
0.27
J
ug/L
03/12/13
1
6
--
--
6
ND
1.01
J
--
--
ND
0.921
J
ND
ND
ND
ND
ND
ug/L
09/10/13
1
6
--
--
6
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/11/14
1
6
--
--
6
ND
0.778
J
--
--
ND
0.960
J
0.240
J
ND
ND
ND
ND
ug/L
09/10/14
1
6
0.220
--
6
ND
0.604
J
--
--
1.26
J 0.738
J
ND
ND
ND
13.3 J
ND
ug/L
03/09/15
1
6
0.220
--
6
ND
0.784
J
--
--
ND
0.714
J
ND
ND
ND
9.46 J
ND
ug/L
09/14/15
1
6
0.220
--
6
0.515
J
0.288
J
--
--
ND
2.20
J
ND
ND
ND
133
ND
ug/L
03/07/16
1
6
0.220
--
6
0.437
B
N D
--
--
0.621
B N D
N D
N D
N D
16.2 J
0.655
J
ug/L
09/13/16
1
6
0.220
--
6
ND
0.718
J
--
--
ND
0.658
J
ND
ND
ND
28.4
ND
ug/L
03/06/17
1
6
0.370
--
6
ND
ND
--
--
ND
ND
ND
ND
ND
5.21 J
ND
ug/L
09/11/17
1
6
0.370
--
6
ND
ND
--
--
ND
ND
ND
ND
ND
7.71 J
ND
ug/L
03/05/18
1
6
0.370
--
6
ND
ND
--
--
ND
ND
ND
ND
ND
11.4 J
ND
ug/L
12/11/18
1
6
1.85
5
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
6.37 J
ND
ug/L
03/05/19
1
6
0.740
2
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
4.85 J
ND
(Background Sampling Event)
ug/L
07/31/19
1
6
0.740
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
1
6
0.740
2
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
19.7
ND
(Background Sampling Event)
ug/L
11/25/19
1
6
0.740
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
1
6
0.740
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
1
6
0.740
2
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
11.6
ND
(Background Sampling Event)
ug/L
05/12/20
1
6
0.740
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
Arsenic
ug/L
10/07/09
10
10
--
--
10
ND
ND
--
--
ND
2.90
J
ND
ND
ND
4.4 J
ND
ug/L
03/16/10
10
10
--
--
10
3.39
J
ND
--
--
ND
4.11
B
3.44
B
ND
3.74 J
ND
ND
ug/L
09/07/10
10
10
--
--
10
ND
ND
--
--
ND
7.51
J
ND
ND
4.36 J
2.84 J
ND
ug/L
03/23/11
10
10
--
--
10
ND
3.11
J
--
--
ND
ND
3.17
J
ND
ND
5.49 J
ND
ug/L
09/12/11
10
10
--
--
10
ND
ND
--
--
4.42
B ND
ND
ND
ND
ND
3.35
J
ug/L
03/12/12
10
10
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
4.07
J
ug/L
10/01/12
10
10
--
--
10
ND
ND
--
--
ND
ND
5.95
B
ND
ND
ND
3.73
J
ug/L
03/12/13
10
10
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
3.32
J
ug/L
09/10/13
10
10
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/11/14
10
10
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
12.1
ND
ug/L
09/10/14
10
10
5.40
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
20.7
ND
ug/L
03/09/15
10
10
5.40
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/14/15
10
10
5.40
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
107
ND
ug/L
03/07/16
10
10
5.40
--
10
ND
ND
--
--
7.36
J ND
ND
ND
ND
30.1
ND
ug/L
09/13/16
10
10
5.40
--
10
ND
ND
--
--
ND
13.5
ND
ND
ND
49.3
ND
ug/L
03/06/17
10
10
8.00
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
13.2 J
ND
ug/L
09/11/17
10
10
6.80
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
11.2
ND
ug/L
03/05/18
10
10
6.80
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
24.0
ND
ug/L
12/11/18
10
10
7.60
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ug/L
03/05/19
10
10
7.60
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
07/31/19
10
10
7.60
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
10
10
7.60
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
11/25/19
10
10
7.60
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
10
10
7.60
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
10
10
7.60
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
05/12/20
10
10
7.60
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
Barium
ug/L
10/07/09
700
2000
--
--
100
15.8
J
35.4
J
--
--
1170
156
154
162
67.3 J
312
1.72
J
ug/L
03/16/10
700
2000
--
--
100
15.0
J
32.4
J
--
--
987
486
95.2
J
149
93.9 J
351
ND
ug/L
09/07/10
700
2000
--
--
100
12.2
J
28
J
--
--
971
358
102
161
62.9 J
261
ND
ug/L
03/23/11
700
2000
--
--
100
19.8
J
37.0
J
--
--
1230
458
100
153
73.5 J
984
ND
ug/L
09/12/11
700
2000
--
--
100
13.3
J
36.4
J
--
--
1460
212
130
138
64.0 J
271
ND
ug/L
03/12/12
700
2000
--
--
100
15.2
J
29.1
J
--
--
1250
275
93.0
J
149
55.0 J
264
1.06
J
ug/L
10/01/12
700
2000
--
--
100
22.9
J
31.3
J
--
--
1260
189
119
136
43.8 J
194
1.27
J
ug/L
03/12/13
700
2000
--
--
100
12.9
J
37.0
J
--
--
1390
254
99.5
J
150
51.7 J
302
1.47
J
ug/L
09/10/13
700
2000
--
--
100
16.7
J
35.9
J
--
--
1280
425
108
130
52.9 J
300
1.15
J
ug/L
03/11/14
700
2000
--
--
100
17.3
J
30.6
J
--
--
1280
633
98.7
J
158
38.2 J
354
1.10
J
ug/L
09/10/14
700
2000
1.00
--
100
14.5
J
30.8
J
--
--
1170
590
118
129
60.8 J
804
2.55
J
ug/L
03/09/15
700
2000
1.00
--
100
17.6
J
33.7
J
--
--
1260
584
100
122
49.4 J
558
ND
ug/L
09/14/15
700
2000
1.00
--
100
17.7
J
34.3
J
--
--
1150
214
120
118
48.1 J
1510
1.22
J
ug/L
03/07/16
700
2000
1.00
--
100
27.6
J
35.7
J
--
--
1090
663
90.9
J
104
42.1 J
712
ND
ug/L
09/13/16
700
2000
1.00
--
100
20.9
J
36.4
J
--
--
993
520
108
108
47.2 J
792
1.08
J
ug/L
03/06/17
700
2000
0.53
--
100
20.0
J
38.8
J
--
--
1200
411
114
105
44.6 J
330
1.16
J
ug/L
09/11/17
700
2000
1.00
--
100
20.0
J
39.0
J
--
--
1080
312
99.3
J
94.6
J
48.5 J
327
3.00
J
ug/L
03/05/18
700
2000
1.00
--
100
17.0
J
36.5
J
--
--
1150
271
111
105
38.0 J
563
1.66
J
ug/L
12/11/18
700
2000
1.10
10
--
15.5
34.2
184
167
1170
602
95.4
114
45.4
343
ND
ug/L
03/05/19
700
2000
1.10
10
--
23.0
36.8
136
159
1220
599
91.4
140
25.5
418
1.20
J
(Background Sampling Event)
ug/L
07/31/19
700
2000
1.10
10
--
--
--
104
175
--
--
--
--
--
--
ND
ug/L
09/23/19
700
2000
1.10
10
--
17.1
34.7
86.9
172
1160
1100
109
101
34.3
445
3.77
J
(Background Sampling Event)
ug/L
11/25/19
700
2000
1.10
10
--
--
--
93.5
179
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
700
2000
1.10
10
--
--
--
83.9
176
--
--
--
--
--
--
ND
ug/L
03/02/20
700
2000
1.10
10
--
24.8
32.6
72.1
159
804
513
89.6
144
24.2
447
ND
(Background Sampling Event)
ug/L
05/12/20
700
2000
1.10
10
--
--
--
85.2
181
--
--
--
--
--
--
ND
Beryllium
ug/L
10/07/09
4
4
--
--
1
ND
0.172
J
--
--
ND
0.420
B
0.255
B
ND
ND
ND
0.101
J
ug/L
03/16/10
4
4
--
--
1
ND
ND
--
--
ND
0.308
J
0.311
J
ND
ND
ND
ND
ug/L
09/07/10
4
4
--
--
1
ND
ND
--
--
ND
ND
0.162
J
ND
ND
ND
ND
ug/L
03/23/11
4
4
--
--
1
ND
ND
--
--
ND
ND
0.235
J
ND
0.182 J
0.772 J
ND
ug/L
09/12/11
4
4
--
--
1
ND
ND
--
--
0.137
J ND
ND
ND
0.110 J
ND
ND
ug/L
03/12/12
4
4
--
--
1
ND
ND
--
--
ND
ND
0.285
J
ND
ND
ND
ND
ug/L
10/01/12
4
4
--
--
1
ND
ND
--
--
ND
ND
0.172
J
ND
ND
ND
ND
ug/L
03/12/13
4
4
--
--
1
ND
ND
--
--
ND
ND
0.208
J
ND
ND
ND
ND
ug/L
09/10/13
4
4
--
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/11/14
4
4
--
--
1
ND
ND
--
--
ND
ND
0.141
J
ND
ND
ND
ND
ug/L
09/10/14
4
4
0.10
--
1
ND
ND
--
--
ND
ND
0.175
J
ND
0.168 J
ND
ND
ug/L
03/09/15
4
4
0.10
--
1
ND
ND
--
--
ND
ND
0.189
J
ND
ND
ND
ND
ug/L
09/14/15
4
4
0.10
--
1
0.202
B
ND
--
--
0.336
B ND
0.330
B
0.102
B
ND
ND
0.244
J
ug/L
03/07/16
4
4
0.10
--
1
ND
ND
--
--
ND
ND
0.256
J
0.135
J '
ND
ND
ND
ug/L
09/13/16
4
4
0.10
--
1
ND
ND
--
--
ND
ND
0.291
J
ND
ND
ND
ND
ug/L
03/06/17
4
4
0.12
--
1
ND
ND
--
--
ND
ND
0.246
J
ND
0.161 J
ND
ND
ug/L
09/11/17
4
4
0.130
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/05/18
4
4
0.130
--
1
ND
ND
--
--
ND
ND
0.222
J
ND
ND
ND
ND
ug/L
12/11/18
4
4
0.160
1
--
ND
ND
ND
ND
ND
ND
0.249
J
ND
ND
ND
ND
ug/L
03/05/19
4
4
0.160
1
--
ND
ND
ND
ND
ND
ND
0.289
J
0.186
J
ND
ND
ND
(Background Sampling Event)
ug/L
07/31/19
4
4
0.160
1
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
4
4
0.160
1
--
ND
ND
ND
ND
ND
ND
0.371
J
ND
ND
ND
ND
(Background Sampling Event)
ug/L
11/25/19
4
4
0.160
1
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
4
4
0.160
1
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
4
4
0.160
1
--
ND
ND
ND
ND
ND
ND
0.223
J
ND
ND
ND
ND
(Background Sampling Event)
ug/L
05/12/20
4
4
0.160
1
--
--
--
ND
ND
--
--
--
--
--
--
ND
Cadmium
ug/L
10/07/09
2
5
--
--
1
ND
ND
--
--
0.499
J 0.534
J
ND
ND
ND
ND
ND
ug/L
03/16/10
2
5
--
--
1
ND
ND
--
--
0.507
J ND
ND
ND
ND
ND
ND
ug/L
09/07/10
2
5
--
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/23/11
2
5
--
--
1
ND
ND
--
--
0.560
J ND
ND
ND
ND
ND
ND
ug/L
09/12/11
2
5
--
--
1
ND
ND
--
--
4.76
ND
ND
ND
ND
ND
ND
ug/L
03/12/12
2
5
--
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
10/01/12
2
5
--
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
0.478
J
ug/L
03/12/13
2
5
--
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/10/13
2
5
--
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/11/14
2
5
--
--
1
ND
ND
--
--
0.497
J ND
ND
ND
ND
ND
ND
ug/L
09/10/14
2
5
0.36
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/09/15
2
5
0.36
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/14/15
2
5
0.36
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/07/16
2
5
0.36
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/13/16
2
5
0.36
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/06/17
2
5
0.45
--
1
ND
0.738
B
--
--
0.745
B ND
ND
ND
ND
ND
0.554
J
ug/L
09/11/17
2
5
0.360
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/05/18
2
5
0.360
--
1
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
12/11/18
2
5
0.360
1
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ug/L
03/05/19
2
5
0.360
1
--
ND
ND
ND
ND
ND
ND
ND
ND
0.483 J
ND
ND
(Background Sampling Event)
ug/L
07/31/19
2
5
0.360
1
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
2
5
0.360
1
--
ND
ND
ND
ND
ND
0.716
J
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
11/25/19
2
5
0.360
1
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
2
5
0.360
1
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
2
5
0.360
1
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
05/12/20
2
5
0.360
1
--
--
--
ND
ND
--
--
--
--
--
--
ND
Chromium
ug/L
10/07/09
10
100
--
--
10
1.00
J
ND
--
--
6.61
J 4.87
J
ND
10.9
2.72 J
5.32 J
ND
ug/L
03/16/10
10
100
--
--
10
ND
ND
--
--
ND
ND
ND
12.1
ND
4.9 J
ND
ug/L
09/07/10
10
100
--
--
10
ND
ND
--
--
ND
ND
ND
15.9
ND
2.9 J
ND
ug/L
03/23/11
10
100
--
--
10
1.45
J
ND
--
--
7.01
J 13.0
5.98
J
16.5
3.10 J
47.1
ND
ug/L
09/12/11
10
100
--
--
10
1.74
J
ND
--
--
8.10
J 4.94
J
1.22
J
14.6
1.24 J
5.15 J
ND
ug/L
03/12/12
10
100
--
--
10
ND
ND
--
--
5.68
J 4.05
B
ND
15.7
B
1.99 J
11.3 B
ND
ug/L
10/01/12
10
100
--
--
10
5.18
J
ND
--
--
2.71
J 3.08
J
ND
15.0
ND
4.05 J
ND
ug/L
03/12/13
10
100
--
--
10
1.36
J
1.18
J
--
--
ND
ND
1.39
J
16.7
ND
3.32 J
ND
ug/L
09/10/13
10
100
--
--
10
ND
ND
--
--
4.13
J ND
ND
20.5
ND
5.29 J
ND
ug/L
03/11/14
10
100
--
--
10
1.90
J
ND
--
--
ND
ND
ND
23.4
ND
15.3
ND
ug/L
09/10/14
10
100
1.40
--
10
ND
ND
--
--
6.53
J 1.97
J
ND
14.0
6.06 J
42
ND
ug/L
03/09/15
10
100
1.40
--
10
1.55
J
ND
--
--
3.85
J 2.22
J
ND
13.6
ND
50.9
ND
ug/L
09/14/15
10
100
1.40
--
10
ND
ND
--
--
5.69
J 2.61
J
ND
14.5
1.61 J
83.6
ND
ug/L
03/07/16
10
100
1.40
--
10
ND
ND
--
--
ND
ND
1.49
J
11.2
ND
32.6
ND
ug/L
09/13/16
10
100
1.40
--
10
ND
ND
--
--
ND
ND
ND
14.3
ND
40.7
ND
ug/L
03/06/17
10
100
1.10
--
10
ND
1.31
J
--
--
ND
ND
1.92
J
13.9
1.15 J
15.5
ND
ug/L
09/11/17
10
100
1.40
--
10
ND
ND
--
--
2.07
J ND
ND
11.1
ND
8.79 J
ND
ug/L
03/05/18
10
100
1.40
--
10
ND
ND
--
--
1.45
J ND
ND
10.9
ND
26.2
ND
ug/L
12/11/18
10
100
1.40
10
--
ND
ND
1.42
J
5.42
J
1.75
J ND
1.72
J
11.2
ND
9.31 J
ND
ug/L
03/05/19
10
100
1.40
10
--
ND
ND
2.92
J
6.93
J
ND
ND
1.75
J
14.9
ND
14.6
ND
(Background Sampling Event)
ug/L
07/31/19
10
100
1.40
10
--
--
--
5.52
J
10.0
--
--
--
--
--
--
ND
ug/L
09/23/19
10
100
1.40
10
--
ND
ND
3.82
J
7.81
J
ND
ND
1.61
J
10.7
ND
16.0
ND
(Background Sampling Event)
ug/L
11/25/19
10
100
1.40
10
--
--
--
5.76
J
9.77
J
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
10
100
1.40
10
--
--
--
5.10
J
9.73
J
--
--
--
--
--
--
ND
ug/L
03/02/20
10
100
1.40
10
--
ND
ND
4.83
J
8.42
J
ND
ND
4.75
J
10.4
ND
10.4
ND
(Background Sampling Event)
ug/L
05/12/20
10
100
1.40
10
--
--
--
4.97
J
10.1
--
--
--
--
--
--
ND
4r4> G 0 L D E R
1 of 3

June 2020
TABLE 5
19117535.701
Summary of Detected Constituents in Monitoring Wells
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Closed
Closed
Active
Unlined &
Active
Detected MonitoringSample
p
NC2L/
Practical
SWS
Closed
Subtitle D
Supplemental
Upgradient
Unlined
Down-
Closed
Subtitle D Downgradient
Subtitle D
Down-
Constituents/Analytes
Units
Date
IMAC
EPA MCL
MDL
Quantitation
Reporting
Subtitle D
U radient
pg
gradient
gradient
Leachate
Blanks
Limit
Limit
Upgradient
MW-1 RR
MW-12
MW-23
MW-24
OW-3
MW-6
MW-7
MW-11
MW-19
Cobalt
ug/L
10/07/09
1
--
--
--
10
ND
1.23 J
--
--
20.5
19.0
20.4
ND
28.0
4.24 J
ND
ug/L
03/16/10
1
--
--
--
10
ND
ND
--
--
25.6
18.4
4.49
J
ND
22.6
4.35 J
ND
ug/L
09/07/10
1
--
--
--
10
ND
ND
--
--
16.6
15.7
14.9
ND
17.6
2.22 J
ND
ug/L
03/23/11
1
--
--
--
10
N D
N D
--
--
22.2
17.4
5.23
J
N D
31.8
49.0
N D
ug/L
09/12/11
1
--
--
--
10
ND
ND
--
--
57.0
17.3
23.9
ND
28.4
2.08 J
ND
ug/L
03/12/12
1
--
--
--
10
ND
ND
--
--
20.0
15.8
3.84
J
ND
33.1
10.8
ND
ug/L
10/01/12
1
--
--
--
10
1.65
J
ND
--
--
20.0
14.4
16.1
ND
24.1
2.40 J
ND
ug/L
03/12/13
1
--
--
--
10
ND
1.14 J
--
--
19.4
14.5
4.24
J
ND
30.6
4.86 J
ND
ug/L
09/10/13
1
--
--
--
10
ND
ND
--
--
18.3
15.5
4.62
J
ND
25.8
5.00 J
ND
ug/L
03/11/14
1
--
--
--
10
1.38
J
ND
--
--
17.9
16.3
5.10
J
ND
22.7
8.56 J
ND
ug/L
09/10/14
1
--
1.10
--
10
ND
ND
--
--
15.9
18.0
19.0
ND
22.2
18.3
ND
ug/L
03/09/15
1
--
1.10
--
10
ND
ND
--
--
16.5
17.8
4.71
J
ND
30.5
11.8
ND
ug/L
09/14/15
1
--
1.10
--
10
ND
1.56 B
--
--
15.2
14.8
23.0
ND
23.4
104
ND
ug/L
03/07/16
1
--
1.10
--
10
ND
ND
--
--
12.7
16.0
4.45
J
ND
22.5
14.2
ND
ug/L
09/13/16
1
--
1.10
--
10
ND
ND
--
--
10.7
16.5
14.5
ND
22.9
20.0
ND
ug/L
03/06/17
1
--
1.50
--
10
ND
ND
--
--
17.4
14.4
19.4
ND
25.8
8.1 J
ND
ug/L
09/11/17
1
--
1.10
--
10
ND
ND
--
--
10.7
14.7
9.72
J
ND
27.8
4.7 J
ND
ug/L
03/05/18
1
--
1.10
--
10
ND
1.62 B
--
--
12.8
13.9
16.0
ND
26.3
10.7
ND
ug/L
12/11/18
1
--
1.40
10
--
ND
ND
ND
1.98 J
10.8
15.2
3.85
J
ND
25.1
7.02 J
ND
ug/L
03/05/19
1
--
1.40
10
--
ND
ND
ND
ND
16.2
14.4
4.28
J
ND
20.3
10.7
ND
(Background Sampling Event)
ug/L
07/31/19
1
--
1.40
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
1
--
1.40
10
--
ND
ND
ND
ND
11.5
17.0
12.7
ND
18.0
23.4
ND
(Background Sampling Event)
ug/L
11/25/19
1
--
1.40
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
1
--
1.40
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
1
--
1.40
10
--
ND
ND
ND
ND
7.51
J 13.7
4.28
J
ND
18.3
6.59 J
ND
(Background Sampling Event)
ug/L
05/12/20
1
--
1.40
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
Copper
ug/L
10/07/09
1000
1300#
--
--
10
ND
ND
--
--
ND
ND
ND
ND
4.96 J
ND
ND
ug/L
03/16/10
1000
1300#
--
--
10
ND
ND
--
--
ND
ND
ND
ND
3.77 J
ND
ND
ug/L
09/07/10
1000
1300#
--
--
10
1.67
J
ND
--
--
ND
ND
ND
ND
2.95 J
ND
ND
ug/L
03/23/11
1000
1300#
--
--
10
2.99
B
ND
--
--
ND
1.66
B
1.60
B
ND
4.74 B
27.8
1.93
J
ug/L
09/12/11
1000
1300#
--
--
10
2.96
B
ND
--
--
ND
ND
ND
ND
ND
ND
2.06
J
ug/L
03/12/12
1000
1300#
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
10/01/12
1000
1300#
--
--
10
5.98
J
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/12/13
1000
1300#
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/10/13
1000
1300#
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/11/14
1000
1300#
--
--
10
3.56
J
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/10/14
1000
1300#
1.60
--
10
ND
ND
--
--
ND
ND
ND
ND
1.67 J
1.88 J
ND
ug/L
03/09/15
1000
1300#
1.60
--
10
1.96
B
ND
--
--
ND
2.51
B
ND
ND
ND
2.85 B
2.93
J
ug/L
09/14/15
1000
1300#
1.60
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/07/16
1000
1300#
1.60
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
1.76 J
ND
ug/L
09/13/16
1000
1300#
1.60
--
10
2.41
B
ND
--
--
2.19
B 1.83
B
1.77
B
1.66
B
1.84 B
4.62 B
3.72
J
ug/L
03/06/17
1000
1300#
0.87
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
4.67
J
ug/L
09/11/17
1000
1300"
1.60
--
10
ND
ND
--
--
ND
ND
1.68
B
ND
ND
ND
5.64
J
ug/L
03/05/18
1000
1300#
1.60
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
12/11/18
1000
1300#
1.60
10
--
ND
ND
ND
ND
ND
ND
1.65
J
ND
1.63 J
ND
ND
ug/L
03/05/19
1000
1300#
1.60
10
--
1.64
J
ND
ND
ND
ND
ND
ND
ND
ND
1.92 J
ND
(Background Sampling Event)
ug/L
07/31/19
1000
1300#
1.60
10
--
--
--
2.10
J
2.36 J
--
--
--
--
--
--
ND
ug/L
09/23/19
1000
1300#
1.60
10
--
3.12
B
ND
ND
ND
ND
ND
ND
ND
ND
ND
6.92
J
(Background Sampling Event)
ug/L
11/25/19
1000
1300#
1.60
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
1000
1300#
1.60
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
1000
1300#
1.60
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
05/12/20
1000
1300#
1.60
10
--
--
--
ND
1.96 J
--
--
--
--
--
--
ND
Lead
ug/L
10/07/09
15
15
--
--
10
ND
ND
--
--
2.46
J 3.05
J
ND
ND
2.06 J
ND
ND
ug/L
03/16/10
15
15
--
--
10
ND
ND
--
--
3.01
J 3.67
J
ND
ND
ND
2.57 J
ND
ug/L
09/07/10
15
15
--
--
10
ND
ND
--
--
1.94
J 3.33
J
ND
ND
ND
2.13 J
ND
ug/L
03/23/11
15
15
--
--
10
ND
ND
--
--
ND
4.46
J
ND
ND
3.22 J
12.6
ND
ug/L
09/12/11
15
15
--
--
10
ND
ND
--
--
3.55
J ND
ND
ND
ND
ND
ND
ug/L
03/12/12
15
15
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
10/01/12
15
15
--
--
10
2.44
J
ND
--
--
3.45
J ND
ND
ND
ND
ND
ND
ug/L
03/12/13
15
15
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/10/13
15
15
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/11/14
15
15
--
--
10
ND
ND
--
--
ND
3.04
J
ND
ND
ND
2.57 J
ND
ug/L
09/10/14
15
15
2.10
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/09/15
15
15
3.10
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/14/15
15
15
3.10
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
9.34 J
ND
ug/L
03/07/16
15
15
3.10
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/13/16
15
15
3.10
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/06/17
15
15
3.10
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/11/17
15
15
3.10
--
10
ND
ND
--
--
ND
11.7
ND
ND
3.28 J
ND
ND
ug/L
03/05/18
15
15
3.10
--
10
ND
ND
--
--
ND
4.40
J
ND
ND
ND
ND
ND
ug/L
12/11/18
15
15
3.10
10
--
ND
ND
ND
ND
ND
4.20
J
ND
ND
ND
4.34 J
ND
ug/L
03/05/19
15
15
3.10
10
--
ND
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
07/31/19
15
15
3.10
10
--
--
ND
3.36
J
4.45 J
--
--
--
--
--
--
ND
ug/L
09/23/19
15
15
3.10
10
--
ND
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
11/25/19
15
15
3.10
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
15
15
3.10
10
--
--
ND
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
15
15
3.10
10
--
ND
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
05/12/20
15
15
3.10
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
Mercury
ug/L
10/07/09
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
03/16/10
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
09/07/10
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
03/23/11
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
09/12/11
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
03/12/12
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
10/01/12
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
03/12/13
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
09/10/13
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
03/11/14
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
09/10/14
1
2
--
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
03/09/15
1
2
0.17
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
09/14/15
1
2
0.17
--
0.2
ND
--
--
--
ND
--
--
--
--
0.341
ND
ug/L
03/07/16
1
2
0.17
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
09/13/16
1
2
0.17
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
03/06/17
1
2
0.17
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
09/11/17
1
2
0.099
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
03/05/18
1
2
0.15
--
0.2
ND
--
--
--
ND
--
--
--
--
ND
ND
ug/L
12/11/18
1
2
0.15
0.2
--
ND
--
ND
ND
ND
--
--
--
--
ND
ND
ug/L
03/05/19
1
2
0.15
0.2
--
ND
--
ND
ND
ND
--
--
--
--
ND
ND
(Background Sampling Event)
ug/L
07/31/19
1
2
0.15
0.2
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
1
2
0.15
0.2
--
ND
--
ND
ND
ND
--
--
--
--
ND
ND
(Background Sampling Event)
ug/L
11/25/19
1
2
0.15
0.2
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
1
2
0.15
0.2
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
1
2
0.15
0.2
--
ND
--
ND
ND
ND
--
--
--
--
ND
ND
(Background Sampling Event)
ug/L
05/12/20
1
2
0.15
0.2
--
--
--
ND
ND
--
--
--
--
--
--
ND
Nickel
ug/L
10/07/09
100
--
--
--
50
ND
ND
--
--
21.3
J ND
ND
8.85
J ,
6.66 J
17.8 J
ND
ug/L
03/16/10
100
--
--
--
50
ND
ND
--
--
20.3
J ND
ND
10.1
J
4.64 J
15.9 J
ND
ug/L
09/07/10
100
--
--
--
50
ND
ND
--
--
17.3
J ND
ND
7.42
J
4.21 J
10.6 J
ND
ug/L
03/23/11
100
--
--
--
50
1.92
J
ND
--
--
24.4
J ND
5.12
8.61
J
7.27 J
65.3
ND
ug/L
09/12/11
100
--
--
--
50
2.09
J
ND
--
--
84.6
ND
1.83
7.96
J '
5.66 J
9.26 J
ND
ug/L
03/12/12
100
--
--
--
50
ND
ND
--
--
24.3
J ND
ND
J
8.47
B
6.49 J
12.2 B
ND
ug/L
10/01/12
100
--
--
--
50
4.14
B
ND
--
--
22.9
J ND
1.83
J
6.34
B
5.23 B
10.3 J
1.95
J
ug/L
03/12/13
100
--
--
--
50
ND
ND
--
--
24.3
J ND
2.29
9.02
J
8.59 J
11.1 J
ND
ug/L
09/10/13
100
--
--
--
50
ND
ND
--
--
24.9
J ND
ND
B
8.87
J
4.67 J
11.9 J
ND
ug/L
03/11/14
100
--
--
--
50
3.29
J
ND
--
--
26.2
J ND
2.07
J
11.1
J '
6.52 J
21.6 J
ND
ug/L
09/10/14
100
--
1.80
--
50
ND
ND
--
--
19.5
J ND
ND
4.72
J
6.6 J
62.0
ND
ug/L
03/09/15
100
--
1.80
--
50
ND
ND
--
--
23.1
J ND
ND
J
5.47
J
6.14 J
42.4 J
ND
ug/L
09/14/15
100
--
1.80
--
50
ND
ND
--
--
21.7
J ND
ND
5.75
J
4.74 J
128
ND
ug/L
03/07/16
100
--
1.80
--
50
ND
ND
--
--
17.9
J ND
ND
7.31
J
5.1 J
50.2
ND
ug/L
09/13/16
100
--
1.80
--
50
ND
ND
--
--
15.6
J ND
ND
5.94
J '
5.57 J
61.7
ND
ug/L
03/06/17
100
--
1.10
--
50
1.17
B
2.77 B
--
--
20.8
J ND
3.04
6.30
B
8.45 B
20.7 J
3.30 (1.79)
J
ug/L
09/11/17
100
--
2.20
--
50
ND
ND
--
--
11.6
J ND
ND
5.04
J
4.8 J
24.8 J
ND
ug/L
03/05/18
100
--
2.20
--
50
ND
ND
--
--
15.8
J ND
ND
B
5.41
J
7.13 J
37.6 J
ND
ug/L
12/11/18
100
--
2.20
10
--
ND
ND
6.95
J
3.14 J
16.7
ND
ND
7.14
J
8.28 J
20.2
ND
ug/L
03/05/19
100
--
2.20
10
--
ND
ND
5.44
J
ND
18.5
ND
ND
11.0
4.13 J
38.1
ND
(Background Sampling Event)
ug/L
07/31/19
100
--
2.20
10
--
--
--
4.93
J
2.20 J
--
--
--
--
--
--
ND
ug/L
09/23/19
100
--
2.20
10
--
ND
ND
3.72
J
ND
18.6
ND
ND
ND
4.01 J
37.3
ND
(Background Sampling Event)
ug/L
11/25/19
100
--
2.20
10
--
--
--
5.42
J
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
100
--
2.20
10
--
--
--
4.72
J
2.56 J
--
--
--
--
--
--
ND
ug/L
03/02/20
100
--
2.20
10
--
ND
ND
2.38
J
ND
9.21
J ND
2.27
10.8
4.10 J
26.5
ND
(Background Sampling Event)
ug/L
05/12/20
100
--
2.20
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
Selenium
ug/L
10/07/09
20
50
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/16/10
20
50
--
--
10
ND
ND
--
--
7.79
J 1.07
J
ND
ND
ND
--
ND
ug/L
09/07/10
20
50
--
--
10
ND
ND
--
--
5.13
B ND
ND
ND
ND
ND
3.38
J
ug/L
03/23/11
20
50
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/12/11
20
50
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/12/12
20
50
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
10/01/12
20
50
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/12/13
20
50
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/10/13
20
50
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/11/14
20
50
--
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/10/14
20
50
5.00
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/09/15
20
50
5.00
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/14/15
20
50
5.00
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/07/16
20
50
6.20
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
09/13/16
20
50
6.20
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/06/17
20
50
10.00
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
11.2
ug/L
09/11/17
20
50
0.910
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/05/18
20
50
6.20
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
12/11/18
20
50
6.20
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ug/L
03/05/19
20
50
6.20
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
07/31/19
20
50
1.82
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
20
50
6.20
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
11/25/19
20
50
6.20
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
20
50
6.20
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
20
50
6.20
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
05/12/20
20
50
6.20
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
4r4> G 0 L D E R
2 of 3

June 2020
TABLE 5
19117535.701
Summary of Detected Constituents in Monitoring Wells
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
Closed
Closed
Active
Unlined &
Active
Detected
MonitoringSample
p
NC2L/
Practical
SWS
Closed
Subtitle D
Supplemental
Upgradient
Unlined
Down-
Closed Subtitle
D Downgradient
Subtitle D
Down-
Constituents/Analytes
Units
Date
IMAC
EPA MCL
MDL
Quantitation
Reporting
Subtitle D
U radient
pg
gradient
gradient
Leachate
Blanks
Limit
Limit
Upgradient
MW-1 RR
MW-12
MW-23
MW-24
OW-3
MW-6
MW-7
MW-11
MW-19
Silver
ug/L
10/07/09
20
100
--
--
10
ND
ND
--
--
ND
4.27
J
ND
ND
2.17 J
ND
ND
ug/L
03/16/10
20
100
--
--
10
ND
ND
--
--
2.05
J 2.74
J
ND
ND
ND
5.36 J
ND
ug/L
09/07/10
20
100
--
--
10
ND
ND
--
--
2.78
J ND
ND
ND
ND
ND
ND
ug/L
03/23/11
20
100
--
--
10
ND
ND
--
--
3.41
J 4.45
J
ND
ND
ND
3.64 J
ND
ug/L
09/12/11
20
100
--
--
10
ND
ND
--
--
2.21
J 3.88
J
ND
ND
ND
ND
ND
ug/L
03/12/12
20
100
--
--
10
ND
ND
--
--
ND
4.15
J
ND
ND
ND
2.81 J
ND
ug/L
10/01/12
20
100
--
--
10
ND
ND
--
--
ND
2.04
J
ND
ND
ND
ND
ND
ug/L
03/12/13
20
100
--
--
10
ND
2.21
J
--
--
5.03
J 4.51
J
ND
1.92
J .
3.46 J
1.99 J
ND
ug/L
09/10/13
20
100
--
--
10
ND
ND
--
--
3.33
J 3.78
J
ND
ND
ND
2.11 J
ND
ug/L
03/11/14
20
100
--
--
10
ND
ND
--
--
2.69
J ND
ND
ND
ND
ND
ND
ug/L
09/10/14
20
100
1.90
--
10
2.91
J
2.21
J
--
--
5.90
J 3.22
J
2.38
ND
2.12 J
ND
ND
ug/L
03/09/15
20
100
1.90
--
10
ND
ND
--
--
2.96
J ND
2.82
ND
ND
ND
ND
ug/L
09/14/15
20
100
1.90
--
10
ND
ND
--
--
3.35
J ND
ND
J
ND
ND
ND
ND
ug/L
03/07/16
20
100
1.90
--
10
ND
ND
--
--
ND
ND
ND
J
ND
ND
ND
ND
ug/L
09/13/16
20
100
1.90
--
10
ND
ND
--
--
ND
ND
ND
ND
ND
2.09 J
ND
ug/L
03/06/17
20
100
0.74
--
10
ND
ND
--
--
ND
0.879
J
ND
ND
ND
ND
ND
ug/L
09/11/17
20
100
1.90
--
10
ND
ND
--
--
ND
3.46
J
ND
ND
ND
ND
ND
(Verification Event)
ug/L
12/20/17
20
100
1.90
--
10
--
--
--
--
--
--
--
--
--
--
ND
ug/L
03/05/18
20
100
1.90
--
10
ND
ND
--
--
5.78
B ND
ND
ND
ND
ND
3.85
J
ug/L
12/11/18
20
100
1.90
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ug/L
03/05/19
20
100
1.90
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
07/31/19
20
100
1.90
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
20
100
1.90
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
11/25/19
20
100
1.90
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
20
100
1.90
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
20
100
1.90
10
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
05/12/20
20
100
1.90
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
Thallium
ug/L
10/07/09
0.28
2
--
--
5.5
ND
0.160
J
--
--
0.218
J ND
ND
ND
ND
ND
ND
ug/L
03/16/10
0.28
2
--
--
5.5
ND
ND
--
--
0.194
J ND
ND
ND
ND
ND
ND
ug/L
09/07/10
0.28
2
--
--
5.5
ND
ND
--
--
0.195
J ND
ND
ND
ND
2.61 J
ND
ug/L
03/23/11
0.28
2
--
--
5.5
ND
ND
--
--
ND
ND
ND
ND
ND
2.46 J
ND
ug/L
09/12/11
0.28
2
--
--
5.5
ND
ND
--
--
1.95
J ND
ND
ND
ND
7.84 B
ND
ug/L
03/12/12
0.28
2
--
--
5.5
ND
ND
--
--
1.20
J 0.148
J
ND
ND
ND
ND
ND
ug/L
10/01/12
0.28
2
--
--
5.5
ND
ND
--
--
0.124
J ND
ND
ND
ND
ND
ND
ug/L
03/12/13
0.28
2
--
--
5.5
ND
ND
--
--
0.117
J ND
ND
ND
ND
ND
ND
ug/L
09/10/13
0.28
2
--
--
5.5
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/11/14
0.28
2
--
--
5.5
ND
ND
--
--
0.116
J ND
ND
ND
ND
ND
ND
ug/L
09/10/14
0.28
2
0.11
--
5.5
ND
ND
--
--
ND
ND
ND
ND
ND
ND
ND
ug/L
03/09/15
0.28
2
0.11
--
5.5
ND
ND
--
--
ND
0.113
J
ND
ND
ND
ND
ND
ug/L
09/14/15
0.28
2
0.11
--
5.5
ND
ND
--
--
0.127
J ND
ND
ND
ND
ND
ND
ug/L
03/07/16
0.28
2
0.11
--
5.5
ND
ND
--
--
0.118
J ND
ND
ND
ND
ND
ND
ug/L
09/13/16
0.28
2
0.11
--
5.5
ND
ND
--
--
0.118
J ND
ND
ND
ND
ND
ND
ug/L
03/06/17
0.28
2
0.11
--
5.5
0.455
J
ND
--
--
0.430
J 0.643
J
0.169
J
0.266
J .
0.294 J
4.90 J
ND
ug/L
09/11/17
0.28
2
0.11
--
5.5
0.335
J
0.141
J
--
--
0.215
J 0.420
J
0.135
J
0.305
J
0.367 J
2.41 J
ND
ug/L
03/05/18
0.28
2
0.11
--
5.5
ND
ND
--
--
0.242
J 0.132
J
ND
ND
ND
ND
ND
ug/L
12/11/18
0.2
2
0.55
5
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ug/L
03/05/19
0.2
2
0.22
2
--
0.266
J
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
07/31/19
0.2
2
0.220
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
0.2
2
0.220
2
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
11/25/19
0.2
2
0.220
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
0.2
2
0.220
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
0.2
2
0.220
2
--
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(Background Sampling Event)
ug/L
05/12/20
0.2
2
0.220
2
--
--
--
ND
ND
--
--
--
--
--
--
ND
Tin
ug/L
10/07/09
2000
--
--
--
100
3.75
J
--
--
--
6.16
J --
--
--
--
--
ND
ug/L
03/16/10
2000
--
--
--
100
3.86
J
--
--
--
5.00
J --
--
--
--
--
ND
ug/L
09/07/10
2000
--
--
--
100
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
03/23/11
2000
--
--
--
100
ND
--
--
--
5.63
J --
--
--
--
--
ND
ug/L
09/12/11
2000
--
--
--
100
4.90
J
--
--
--
5.01
J --
--
--
--
--
ND
ug/L
03/12/12
2000
--
--
--
100
4.26
J
--
--
--
4.22
J --
--
--
--
--
ND
ug/L
10/01/12
2000
--
--
--
100
4.46
J
--
--
--
4.45
J --
--
--
--
--
ND
ug/L
03/12/13
2000
--
--
--
100
4.03
J
--
--
--
6.93
J --
--
--
--
--
ND
ug/L
09/10/13
2000
--
--
--
100
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
03/11/14
2000
--
--
--
100
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
09/10/14
2000
--
--
--
100
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
03/09/15
2000
--
2.40
--
100
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
09/14/15
2000
--
2.40
--
100
ND
--
--
--
ND
--
--
--
--
--
2.75
J
ug/L
03/07/16
2000
--
2.40
--
100
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
09/13/16
2000
--
2.40
--
100
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
03/06/17
2000
--
4.20
--
100
7.50
J
--
--
--
7.07
J --
--
--
--
--
ND
ug/L
09/11/17
2000
--
2.40
--
100
ND
--
--
--
ND
--
--
--
--
--
2.83
J
ug/L
03/05/18
2000
--
2.40
--
100
ND
--
--
--
ND
--
--
--
--
--
ND
ug/L
12/11/18
2000
--
2.90
10
--
ND
--
ND
ND
ND
--
--
--
--
--
ND
ug/L
03/05/19
2000
--
2.90
10
--
ND
--
ND
ND
ND
--
--
--
--
--
3.46
(Background Sampling Event)
ug/L
07/31/19
2000
--
2.90
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
2000
--
2.90
10
--
ND
--
ND
ND
ND
--
--
--
--
--
4.62
J
(Background Sampling Event)
ug/L
11/25/19
2000
--
2.90
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
2000
--
2.90
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
2000
--
2.90
10
--
ND
--
ND
ND
ND
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
05/12/20
2000
--
2.90
10
--
--
--
ND
ND
--
--
--
--
--
--
ND
Vanadium
ug/L
10/07/09
0.3
--
--
--
25
2.73
J
2.14
J
--
--
ND
ND
ND
ND
6.13 J
3.24 J
ND
ug/L
03/16/10
0.3
--
--
--
25
3.11
J
1.83
J
--
--
ND
ND
ND
ND
5.23 J
6.48 J
ND
ug/L
09/07/10
0.3
--
--
--
25
2.09
J
1.85
J
--
--
ND
ND
ND
ND
1.82 J
4.09 J
ND
ug/L
03/23/11
0.3
--
--
--
25
3.57
J
2.01
J
--
--
ND
ND
2.02
J
ND
5.19 J
107
ND
ug/L
09/12/11
0.3
--
--
--
25
2.79
J
1.92
J
--
--
4.23
J ND
ND
ND
ND
1.54 J
ND
ug/L
03/12/12
0.3
--
--
--
25
2.16
J
ND
--
--
ND
ND
ND
ND
ND
17.3 J
ND
ug/L
10/01/12
0.3
--
--
--
25
6.67
J
1.64
J
--
--
ND
2.01
J
ND
ND
2.62 J
ND
ND
ug/L
03/12/13
0.3
--
--
--
25
1.73
J
1.54
J
--
--
ND
ND
ND
ND
2.31 J
3.12 J
ND
ug/L
09/10/13
0.3
--
--
--
25
1.81
J
2.21
J
--
--
ND
ND
ND
ND
1.73 J
ND
ND
ug/L
03/11/14
0.3
--
--
--
25
2.61
J
1.65
J
--
--
ND
ND
ND
ND
2.45 J
14.5 J
ND
ug/L
09/10/14
0.3
--
1.40
--
25
ND
1.53
J
--
--
ND
ND
ND
ND
4.00 J
21.5 J
ND
ug/L
03/09/15
0.3
--
1.40
--
25
1.99
J
1.59
J
--
--
ND
ND
ND
ND
ND
8.12 J
ND
ug/L
09/14/15
0.3
--
1.40
--
25
2.16
J
2.01
J
--
--
ND
ND
ND
ND
4.87 J
96.2
ND
ug/L
03/07/16
0.3
--
1.40
--
25
ND
2.25
J
--
--
ND
2.08
J
ND
ND
3.09 J
23.0 J
ND
ug/L
09/13/16
0.3
--
1.40
--
25
1.72
J
2.29
J
--
--
ND
ND
ND
ND
ND
27.3
ND
ug/L
03/06/17
0.3
--
0.50
--
25
2.13
B
3.63
B
--
--
ND
1.17
J
0.965
J
0.997
J
3.54 B
13.5 J
.746 (0.50E
J
ug/L
09/11/17
0.3
--
1.40
--
25
ND
1.73
J
--
--
ND
3.29
J
ND
ND
1.76 J
1.64 J
ND
ug/L
03/05/18
0.3
--
1.40
--
25
ND
3.37
B
--
--
ND
ND
ND
ND
3.42 B
20.8 J
1.40
ug/L
12/11/18
0.3
--
1.40
10
--
1.48
J
1.72
J
ND
2.66
J
ND
1.94
J
ND
ND
1.73 J
5.53 J
ND
ug/L
03/05/19
0.3
--
1.40
10
--
ND
1.58
J
ND
3.02
J
ND
ND
ND
ND
ND
10.9
ND
(Background Sampling Event)
ug/L
07/31/19
0.3
--
1.40
10
--
--
--
2.45
J
4.22
J
--
--
--
--
--
--
ND
ug/L
09/23/19
0.3
--
1.40
10
--
ND
1.86
J
ND
3.84
J
ND
ND
ND
ND
ND
29.3
ND
(Background Sampling Event)
ug/L
11/25/19
0.3
--
1.40
10
--
--
--
3.16
J
3.91
J
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
0.3
--
1.40
10
--
--
--
ND
5.10
J
--
--
--
--
--
--
ND
ug/L
03/02/20
0.3
--
1.40
10
--
ND
1.44
J
ND
3.33
J
ND
ND
ND
ND
ND
8.22 J
ND
(Background Sampling Event)
ug/L
05/12/20
0.3
--
1.40
10
--
--
--
ND
4.31
J
--
--
--
--
--
--
ND
Zinc
ug/L
10/07/09
1000
5000*
--
--
10
ND
ND
--
--
5.17
B 9.62
B
9.40
18.8
B
6.17 J
5.80 B
18.1
ug/L
03/16/10
1000
5000*
--
--
10
ND
ND
--
--
6.89
J 5.61
J
6.74
17.6
6.21 J
14.4
ND
ug/L
09/07/10
1000
5000*
--
--
10
ND
ND
--
--
4.10
J 5.39
J
6.67
B
10.8
10.9
3.86 J
ND
ug/L
03/23/11
1000
5000*
--
--
10
10.2
ND
--
--
4.81
J ND
8.48
J
11.2
5.90 J
1140
ND
ug/L
09/12/11
1000
5000*
--
--
10
ND
ND
--
--
31.0
5.99
J
8.48
J
8.67
J
ND
ND
ND
ug/L
03/12/12
1000
5000*
--
--
10
ND
ND
--
--
ND
6.49
J
5.59
J
8.76
J
ND
60.6
ND
ug/L
10/01/12
1000
5000*
--
--
10
9.65
J
ND
--
--
ND
7.42
J
8.98
J
7.16
J
ND
5.47 J
ND
ug/L
03/12/13
1000
5000*
--
--
10
ND
ND
--
--
ND
ND
6.42
J
9.20
J.
3.80 J
8.01 J
ND
ug/L
09/10/13
1000
5000*
--
--
10
ND
ND
--
--
ND
7.03
J
7.60
J
20.2
4.64 J
ND
ND
ug/L
03/11/14
1000
5000*
--
--
10
12.0
ND
--
--
6.15
J 7.88
J
8.46
J
12.9
4.33 J
21.4
ND
ug/L
09/10/14
1000
5000*
3.80
--
10
ND
ND
--
--
ND
ND
7.72
J
10.9
3.90 J
38.0
ND
ug/L
03/09/15
1000
5000*
3.80
--
10
4.17
J
ND
--
--
ND
5.43
J
8.34
J
7.93
J '
ND
15.8
ND
ug/L
09/14/15
1000
5000*
3.80
--
10
ND
4.08
J
--
--
ND
5.23
J
6.89
J
6.43
J ,
4.61 J
426
ND
ug/L
03/07/16
1000
5000*
3.80
--
10
ND
ND
--
--
ND
ND
5.52
J
12.4
ND
34.3
ND
ug/L
09/13/16
1000
5000*
3.80
--
10
ND
ND
--
--
ND
4.97
J
7.12
J
5.92
J
ND
58.7
ND
ug/L
03/06/17
1000
5000*
6.30
--
10
ND
ND
--
--
ND
ND
8.65
J
8.44
J
ND
12.0
ND
ug/L
09/11/17
1000
5000*
4.40
--
10
ND
ND
--
--
11.4
B ND
14.6
J
14.1
B'
ND
8.71 B
8.94
J
ug/L
03/05/18
1000
5000*
4.40
--
10
ND
ND
--
--
ND
ND
7.02
J
6.31
J,
ND
14.8
ND
ug/L
12/11/18
1000
5000*
4.40
10
--
ND
ND
17.8
ND
ND
ND
5.84
B
7.98
J
13.2
7.54 J
ND
ug/L
03/05/19
1000
5000*
4.40
10
--
ND
ND
13.1
ND
ND
ND
7.70
J
20.4
ND
18.0
ND
(Background Sampling Event)
ug/L
07/31/19
1000
5000*
4.40
10
--
--
--
15.2
ND
--
--
--
--
--
--
ND
ug/L
09/23/19
1000
5000*
4.40
10
--
4.81
J
ND
10.7
ND
5.93
J ND
ND
J
ND
ND
38.8
ND
(Background Sampling Event)
ug/L
11/25/19
1000
5000*
4.40
10
--
--
--
13.8
ND
--
--
--
--
--
--
ND
(Background Sampling Event)
ug/L
01/28/20
1000
5000*
4.40
10
--
--
--
7.20
J
ND
--
--
--
--
--
--
ND
ug/L
03/02/20
1000
5000*
4.40
10
--
ND
ND
6.31
J
5.42
J
ND
9.17
J
6.37
J
18.8
ND
12.6
ND
(Background Sampling Event)
ug/L
05/12/20
1000
5000*
4.40
10
--
--
--
13.3
ND
--
--
--
--
--
--
ND
Sodium
ug/L
03/02/20
--
--
400
500
--
8680
4910
2500
10900
86400
10700
--
2040
1580
267000
ND
Iron
ug/L
03/02/20
300
300
22
50
--
ND
480
77
145
23600
72200
--
35.3
J
21400
15700
ND
Manganese
ug/L
03/02/20
50
50
1.0
2.0
--
10.2
149
39
21
14400
9070
--
6.29
1530
2300
ND
Calcium
ug/L
03/02/20
--
--
39
100
--
35900
8030
3230
15800
39200
69600
--
6500
4280
97300
ND
Magnesium
ug/L
03/02/20
--
--
29
100
--
6400
2800
2190
8350
28500
19700
--
5520
980
50200
ND
Potassium
ug/L
03/02/20
--
--
150
500
--
4520
1970
2080
1270
10100
6470
--
1780
283 J
84500
ND
Notes: mg/L = milligrams per liter
ug/L = micrograms per liter
nM = nano mols
NC 2L = North Carolina Water Quality Standard
IMAC = Interim Maximum Allowable Concentration
EPA MCL = United States Environmental Protection Agency Maximum Contaminant Limit
J = Prior to the December 2018 event, J flags are estimated values below the SWS Reporting limit
B = blank -qualified data
ND = not detected above the laboratory detection limit
-- = no data or no limit established
Beginning with the December 2018 event, J flags are estimated values between MDL and PQL.
# = 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
Multiple laboratory method blanks were analyzed for barium, nickel, and vanadium during the March 2017 event. The first value in the Blanks column correspond to OW-3, OW-4, OW-10D,
Historical data provided consists only of data since October 2009 and is not the complete historical record for the facility.
The following diluions were noted for the March 2020 sampling event: antimony and thallium (all points) by 2X and chloride at OW-3 by 14X.
OW-12, OW-14D and OW-17D. The second value in the Blanks
J GOLDER
3 of 3

June 2020
TABLE 6
USGS National Geochemical Survey Database Summary
Hanes mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
19117535.701
NURE
Record ID
Lab ID
Collection
Date
Datum
Latitude
Longitude
Medium
Source
Units
Barium
Cobalt
Chromium
5282810
C-110092
09/12/76
NAD27
35.9952
-80.2418
Sediment
Stream
ppm
2630
ND
8
5282822
C-110100
09/12/76
NAD27
35.9098
-80.2140
Sediment
Stream
ppm
1570
ND
3
5282670
C-110270
09/09/76
NAD27
35.9945
-80.0553
Sediment
Stream
ppm
174
12
7
5282584
C-110403
07/13/76
NAD27
35.9876
-80.5241
Sediment
Stream
ppm
65
36
79
5289680
C-110410
07/13/76
NAD27
36.2632
-80.2747
Sediment
Stream
ppm
1000
11
31
5289312
C-110490
07/14/76
NAD27
36.0003
-80.4473
Sediment
Stream
ppm
348
14
28
5289485
C-110871
07/21/76
NAD27
36.2239
-80.0316
Sediment
Stream
ppm
684
8
13
5289579
C-143129
07/11/76
NAD27
36.4035
-80.1033
Sediment
Stream
ppm
267
14
42
5289450
C-143367
07/17/76
NAD27
36.1168
-80.3382
Sediment
Stream
ppm
294
10
31
5289661
C-143413
07/12/76
NAD27
36.3345
-80.3890
Sediment
Stream
ppm
464
7
30
5289470
C-143440
07/17/76
NAD27
36.2319
-80.4357
Sediment
Stream
ppm
1090
5
27
5282800
C-144593
09/12/76
NAD27
35.9375
-80.3027
Sediment
Stream
ppm
2440
4
16
Average
919
10
26
Notes:
1. NURE = National Uranium Resource Evaluation
2. ID = identification
3. ND = non -detect
4. Inorganic analysis performed by ICP40.
5. ppm = parts per million
6. Sample locations are within 20 miles of the Hanes Mill Road Landfill
7. Source of data is the United States Geological Survey National Geochemical Survey Database.
.41I,> GOLDER 10f1

June 2020
TABLE 7
Summary of Statistical Analysis
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
19117535.701
Detected
Monitoring
Constituent
Reporting Units
Groundwater Standard
Downgradient
Monitoring Well
Constituent
Concentration
Statistical Analysis
Statistical Determination
NC 2L
IMAC
Interwell
Intrawell
Closed Unlined Landfill Downgradient Monitoring Wells and Concentrations
Barium
ug/L
700
--
OW-3
804
154
--
SSI
Cobalt
ug/L
10
--
OW-3
7.51 J
1.98
--
SSI
Closed Subtitle D Landfill Downgradient Monitoring Wells and Concentrations
Chromium
ug/L
10
--
MW-11
10.4
10.1
18.9
Not SSI (Intrawell)
Cobalt
ug/L
--
1
MW-6
13.7
1.98
20.0
Not SSI (Intrawell)
MW-7
4.28 J
29.9
Not SSI (Intrawell)
Active Subtitle D Landfill Downgradient Monitoring Wells and Concentrations
Cobalt
ug/L
--
1
1 MW-19
1 18.3
1 1.98
1 --
I SSI, not enough <10NTU data to run intrawell
Notes: 1. Statistical worksheets are provided as Appendix C.
2. ug/L = micrograms per liter
3. NC 2L = North Carolina 2L Groundwater Standard
4. IMAC = North Carolina 2L Standard Interim Maximum Allowable Concentration
5. SSI = statistically significant increase
6. ND = not detected above laboratory detection limit
7. -- = not available
8. GPS = statistically calculated groundwater protection standard
9. North Carolina Appendix I Inorganic constituents detected above their respective Solid Waste Section Reporting Limit and Groundwater Standard in samples from downgradient
monitoring wells were statistically evaluated.
10. The Previously Proposed GPS are from the May 21, 2018, Response to Alternate Source Demonstration - Request for Additional Information.
G 0 L D E R 1of1

June 2020
TABLE 8
Summary of Detected Constituents in Soil Samples
Hanes Mill Road Landfill, Permit No. 34-02
19117535.701
PRELIMINARY
PRELIMINARY
PROTECTION OF
RESIDENTIAL
INDUSTRIAL
GROUNDWATER
HEALTH -BASED
HEALTH -BASED
SOIL
BACKGROUND
BACKGROUND
REMEDIATION
REMEDIATION
REMEDIATION
(SEPTEMBER 12,
(JANUARY 27,
BACKGROUND
PARAMETER
UNITS
GOALS
GOALS
GOALS
2013)
2016)
(JULY 19, 2016)
Barium
mg/kg dry
3000
44000
580
66.1
125
148
Chromium
mg/kg dry
24000
1000000
360000
37.1
37.2
49.2
Cobalt
mg/kgmg/kg dry
4.6
70
0.9
5.26
15.7
14.7
Notes: mg/kg = milligrams per kilogram
ND = not detected above laboratory method detection limit
J = estimated concentration below the laboratory method reporting limit
B = blank qualified
-- = no data available
S.U. = Standard Units
Blanks = method blanks
Bold = concentration exceeds Preliminary Residential Health -Based Remediation Goal
Highlighted = concentration exceeds Protection of Groundwater Soil Remediation Goal
" = concentration exceeds Preliminary Industial Health -Based Remediation Goal
1) Preliminary Residential and Industrial Health -Based Remediation Goals and Protection of Groundwater Soil Remediation
Goals are from the Inactive Hazardous Sites Branch Preliminary Soil Remediation Goals Table, February 2013.
2) Background September 12, 2013 is from Golder, 2013.
3) Background January 27, 2016 is from Golder, February 2016.
4) Background July 19, 2016 is from Golder, August 2016.
. 4,,> GOLDER
1 of 1

June 2020
TABLE 9
Summary of Partitioning Calculations Using Published Partitioning Coefficients
Hanes Mill Road Landfill, Permit No. 34-02
Forsyth County, North Carolina
19117535.701
Kd* (mL/g)
Calculated Groundwater Concentration (ug/L)
MaximumObserved
Minimum
Maximum
Soil Concentration
Calculated
Calculated
Constituent
Boring ID / Sample Name
Burkhard Heuel-
Stenge and
Burkhard Heuel-
Stenge and
Concentration in
(mg/kg)
Allison and Allison
EPA
Allison and Allison
EPA
Groundwater
Groundwater
Fabianek
Peterson
Fabianek
Peterson
Compliance Well
Concentration
Concentration
(ug/L)
(ug/L)
(ug/L)
BACKGROUND (SEPTEMBER 12, 2013)
66.1
19441
--
1612
125
Barium
. . . . . . . . . . . . . . . .
BACKGROUND (JANUARY 27, 2016)
. . . . . . .
125
3.4
--
41
530
. . . . . . .
36765
. . . . . . .
--
. . . . . . .
3049
. . . . . . .
236
125
297561
1460
BACKGROUND (JULY 19, 2016)
12200
3588235
--
297561
23019
BACKGROUND (SEPTEMBER 12, 2013)
37.1
9513
530
0.021
221
Chromium
BACKGROUND (JANUARY 27, 2016)
37.2
3.9
70
1800000
168
9538
531
0.021
221
0.021
703
23.4
BACKGROUND (JULY 19, 2016)
49.2
12615
703
0.027
293
BACKGROUND (SEPTEMBER 12, 2013)
5.26
2505
87.7
117
2711
Cobalt
BACKGROUND (JANUARY 27, 2016)
15.7
2.1
60
45
1.94
7476
262
349
8093
87.7
8093
57.0
BACKGROUND (JULY 19, 2016)
14.7
7000
245
327
7577
Notes:
mg/kg = milligrams per kilogram
ND = Not detected at or above the laboratory detection limit
BGS = below ground surface
Kd = soil to groundwater partitioning coefficient
Kd values are from the following sources:
1. Partition Coefficients for Metals in Surface Water, Soil, and Waste (Allison and Allison, 2005)
2. Partition Coefficients (Kd) for the Modelling of Transport Processes of Radionuclides in Groundwater (Burkhard Heuel-Fabianek, 2014)
3. Regional Screening Levels (RSLs) - Generic Tables (EPA, 2018)
4. Chemical Data Bases for the Multimedia Environmental Polluntant Assessment System (MEPAS): Version 1 (Stenge and Peterson, 1989)
,,Iw> G0LDEF
1 of 1

Drawing

00
3
a
a
0
N
0
0�
00
rn
(M
m
0
E
m
Z
i7
04
N
00
NI
L
y
Q
d
3
3
sZ
Y
N
N
0
0
U
a
E
0
• _ — • iam
• iL1WO 797.10
GRASSY CREEK
�j� •• '' -- � �� --- �� ;1 � :
`►�� =sus .�,^�,,,.r- �� • - y „ ► - • •
�r
j
WIN
�� �,,, ,,w�►,,.:._ ,,,•,mow � ,.--�'""`_� �''�,.
.er
I -
ME
* FA
• O
I
p�
U
Vim/
PIP L -..'
'EMBER 12,
1 : '• . �• i •i p '1
IC
WIN
I
%rl
MrW
y
i
EXISTING 10-FOOT GROUND SURFACE CONTOUR
EXISTING 2-FOOT GROUND SURFACE CONTOUR
VICINITY MAP
10000 10000 20000 APPROXIMATE LIMITS OF WASTE
SCALE FEET
�.� PROPERTY LINE
EXISTING ROAD
810 GROUNDWATER ELEVATION 10 FT CONTOURS
GROUNDWATER FLOW ARROW
o OW-3 MONITORING WELL AND IDENTIFICATION
811.92
❑ SW-1 SURFACE WATER MONITORING POINT
- H METHANE MONITORING POINT
�- NM NOT MEASURED
SOIL SAMPLE AND IDENTIFICATION
NOTES
1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET
E3 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET
3. GROUNDWATER ELEVATIONS MEASURED ON MARCH 02, 2020.
4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION
(� FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE,
1 ( 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 L
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 L
JANUARY 5, 2019 AERIAL SURVEY. I
7. COORDINATE SYSTEM IS N.C. STATE PLANE GRID. �
250 250 500
L
SCALE FEET
WINSTON SALEM / FORSYTH COUNTY CITY /
COUNTY UTILITIES COMMISSION
TOPOGRAPHY AND OTHER
EXISTING SITE FEATURES INSIDE PROJECT
DASHED LINE BASED ON JANUARY
HANES MILL ROAD LANDFILL
JANUARY 6, 2016 AERIAL SURVEY.
EXISTING CONDITIONS OUTSIDE PERMIT NO. 34-02
OF DASHED LINE BASED ON
JANUARY 4, 2014 AERIAL SURVEY. FORSYTH COUNTY, NORTH CAROLINA
GROUNDWATER SURFACE CONTOUR MAP
MARCH 02, 2020.
II // CONSULTANT YYYY-MM-DD 2020-04-02
PREPARED HAC
G 0 L D E R DESIGN NTT
I
REVIEW DYR
GOLDER ASSOCIATES NC, INC. APPROVED R P K
PROJECT No. PHASE DRAWING
19117535 701 0
L
F
L
1
i
0

APPENDIX A
Time Series Plots

WQStat Plus" v.9.4.32
2000
1600
1200
J
800
400
0
10/7/09
Time Series
11 /20/11 1 /2/14 2/15/16 3/30/18 5/12/20
Constituent: Barium Analysis Run 6/17/2020 9:45 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables
♦ MW-12 (bg)
■ MW-1 RR (bg)
MW-23 (bg)
♦ MW-24 (bg)
♦ OW-3
♦ Leachate

WQStat Plus" v.9.4.32
Hollow symbols indicate censored values
Time Series
90
72
54
J
7
36
18
11 /19/11 1 /1 /14 2/14/16 3/29/18 5/12/20
Constituent: Chromium Analysis Run 6/17/2020 9:46 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables
♦ MW-12 (bg)
■ MW-1 RR (bg)
MW-23 (bg)
♦ MW-24 (bg)
♦ MW-11
♦ Leachate

WQStat Plus" v.9.4.32
Hollow symbols indicate censored values.
110
88
66
J
44
22
Time Series
11 /18/11 12/31 /13 2/14/16 3/29/18 5/12/20
Constituent: Cobalt Analysis Run 6/23/2020 9:58 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables
MW-12 (bg)
MW-1 RR (bg)
MW-23 (bg)
MW-24 (bg)
OW-3
MW-11
MW-6
MW-19
Leachate
MW-7

APPENDIX B
Sen's Slope Estimator Plots

WQStat Plus" v.9.4.32
2000
1600
1200
J
800
400
0
10/7/09
Sen's Slope Estimator
OW-3
•
•
•
n=18
Slope = -22
units per year.
Mann -Kendall
statistic = -64
critical = -63
Decreasing trend
significant at 98%
confidence level
(a = 0.01 per
tail).
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Barium Analysis Run 6/17/2020 10:00 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
20
16
12
J
8'
4
0
10/6/09
Sen's Slope Estimator
MW-11
•
n=19
Slope =-0.3075
units per year.
Mann -Kendall
statistic = -67
critical = -68
Trend not sig-
nificant at 98%
confidence level
(a = 0.01 per
tail).
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Chromium Analysis Run 6/17/2020 9:56 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables
n=19
Slope =-0.3075
units per year.
Mann -Kendall
statistic = -67
critical = -68
Trend not sig-
nificant at 98%
confidence level
(a = 0.01 per
tail).
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Chromium Analysis Run 6/17/2020 9:56 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
Hollow symbols indicate censored values.
60
48
36
J
24
12
Sen's Slope Estimator
OW-3
•
a
0
10/7/09
n=18
Slope = -1.419
units per year.
Mann -Kendall
statistic = -94
critical = -63
Decreasing trend
significant at 98%
confidence level
(a = 0.01 per
tail).
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Cobalt Analysis Run 6/17/2020 10:00 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
20
16
12
J
8'
4
0
10/6/09
Sen's Slope Estimator
MW-6
•
•
•
•
•
•
n=21
Slope =-0.2812
units per year.
Mann -Kendall
statistic = -91
critical = -78
Decreasing trend
significant at 98%
confidence level
(a = 0.01 per
tail).
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Cobalt Analysis Run 6/17/2020 10:01 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
30
24
18
J
12
6
0
10/6/09
Sen's Slope Estimator
MW-7
•
•
.
•
•
.
•
n=22
Slope =-0.08624
units per year.
Mann -Kendall
statistic = -30
critical = -84
Trend not sig-
nificant at 98%
confidence level
(a = 0.01 per
tail).
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Cobalt Analysis Run 6/23/2020 9:56 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
30
24
18
J
0)
12
6
0 4-
9/12/17
Sen's Slope Estimator
MW-19
n = 5
Slope = -4.492
units per year.
Mann -Kendall
statistic = -8
critical = -10
Trend not sig-
nificant at 98%
confidence level
(a = 0.01 per
tail).
3/11 /18 9/7/18 3/7/19 9/3/19 3/2/20
Constituent: Cobalt Analysis Run 6/17/2020 10:01 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

APPENDIX C
Laboratory Certificates -of -
Analysis

ENCO Laboratones
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, June 2, 2020
Golder Associates, Inc. (G0007)
Attn: Dusty Reedy
5B Oak Branch Drive
Greensboro, NC 27407
RE: Laboratory Results for
Project Number: 19117535.403, Project Name/Desc: Hanes Mill LF- Active Sub D
ENCO Workorder(s): CD03413
Dear Dusty Reedy,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Friday, March 6, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Daniel B. Mays
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 2

(� �Eo
www.encolabs.com
SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: 3402-MW32
Lab ID: CD03413-01
Sampled: 03/03/20 09:45
Received: 03/06/20 13:45
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
08/30/20
03/09/20 09:10
03/12/20 12:18
EPA 6020E
EPA 3005A
08/30/20
03/09/20 09:37
03/13/20 05:46
Client ID: 3402-MW19
Lab ID: CD03413-08
Sampled: 03/05/20 13:30
Received: 03/06/20 13:45
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
09/01/20
03/09/20 09:10
03/12/20 13:13
Client ID: 3402-MW19
Lab ID: CD03413-08RE1
Sampled: 03/05/20 13:30
Received: 03/06/20 13:45
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6020B
EPA 3005A
09/01/20
03/09/20 09:37
05/12/20 12:42
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 12

(� �Eo
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: 3402-MW32
Lab ID:
CD03413-01
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Calcium - Total
8030
39.0
100
ug/L
EPA 6010D
Iron - Total
480
22.0
50.0
ug/L
EPA 6010D
Magnesium - Total
2800
29.0
100
ug/L
EPA 6010D
Manganese - Total
149
1.00
2.00
ug/L
EPA 6020E
Potassium - Total
1970
150
500
ug/L
EPA 6010D
Sodium - Total
4910
400
500
ug/L
EPA 6010D
Client ID: 3402-MW39
Lab ID:
CD03413-08
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Calcium - Total
4280
39.0
100
ug/L
EPA 6010D
Iron - Total
21400
22.0
50.0
ug/L
EPA 6010D
Magnesium - Total
980
29.0
100
ug/L
EPA 6010D
Potassium - Total
283
J
150
500
ug/L
EPA 6010D
Sodium - Total
1580
400
500
ug/L
EPA 6010D
Client ID: 3402-MW39
Lab ID:
CD03413-08RE3
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Manganese - Total
1530
D
10.0
20.0
ug/L
EPA 6020E
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 12

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-MW12 Lab Sample ID:CDO3413-01 Received: 03/06/20 13:45
Matrix: Ground Water Sampled:03/03/20 09:45 Work Order: CD03413
Project: Hanes Mill LF- Active Sub D Sampled By: Nicolas Tejada/Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa Units
LF
MDL
POLL
Batch
Method
Analyzed
Ay Notes
Calcium [7440-70-2]^
8030
ug/L
1
39.0
100
0009010
EPA 6010D
03/12/20 12:18
JDH
Iron [7439-89-6]^
480
ug/L
1
22.0
50.0
0009010
EPA 6010D
03/12/20 12:18
JDH
Magnesium [7439-95-4]^
2800
ug/L
1
29.0
100
0009010
EPA 6010D
03/12/20 12:18
JDH
Manganese [7439-96-5]^
149
ug/L
2
1.00
2.00
0009013
EPA 6020B
03/13/20 05:46
RLF
Potassium [7440-09-7]^
1970
ug/L
1
150
500
0009010
EPA 6010D
03/12/20 12:18
JDH
Sodium [7440-23-5]^
4910
ug/L
1
400
500
0009010
EPA 6010D
03/12/20 12:18
JDH
Description: 3402-MW19 Lab Sample ID:CDO3413-08 Received: 03/06/20 13:45
Matrix: Ground Water Sampled:03/05/20 13:30 Work Order: CD03413
Project: Hanes Mill LF- Active Sub D Sampled By: Nicolas Tejada/Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
By Notes
Calcium [7440-70-2]^
4280
ug/L
1
39.0
100
0009010
EPA 6010D
03/12/20 13:13
JDH
Iron [7439-89-6]^
21400
ug/L
1
22.0
50.0
0009010
EPA 6010D
03/12/20 13:13
JDH
Magnesium [7439-95-4]^
980
ug/L
1
29.0
100
0009010
EPA 6010D
03/12/20 13:13
JDH
Manganese [7439-96-5]^
1530 D
ug/L
20
10.0
20.0
OE04025
EPA 6020E
05/12/20 12:42
RLF
Potassium [7440-09-7]^
283 J
ug/L
1
150
500
0009010
EPA 6010D
03/12/20 13:13
JDH
Sodium [7440-23-5]^
1580
ug/L
1
400
500
0009010
EPA 6010D
03/12/20 13:13
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of 12

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO9O1O - EPA 3OO5A
Blank (0009010-BLK1)
Prepared: 03/09/2020 09:10 Analyzed: 03/12/2020 11:42
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
LCS (0009010-BSI)
Prepared: 03/09/2020 09:10 Analyzed: 03/12/2020 11:58
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
1970
100
ug/L
2000
99 80-120
Iron
948
50.0
ug/L
1000
95 80-120
Magnesium
1940
100
ug/L
2000
97 80-120
Potassium
9740
500
ug/L
10000
97 80-120
Sodium
9710
500
ug/L
10000
97 80-120
Matrix Spike (0009010-MS1)
Prepared:
03/09/2020
09:10 Analyzed: 03/12/2020 12:01
Source: CD03413-05
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
21300
100
ug/L
2000
20100
58 75-125
QM-07
Iron
991
50.0
ug/L
1000
102
89 75-125
Magnesium
8810
100
ug/L
2000
7360
73 75-125
QM-07
Potassium
11700
500
ug/L
10000
2130
96 75-125
Sodium
15600
500
ug/L
10000
6160
94 75-125
Matrix Spike Dup (0009010-MSD1)
Prepared:
03/09/2020
09:10 Analyzed: 03/12/2020 12:04
Source: CD03413-05
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
21700
100
ug/L
2000
20100
80 75-125 2
20
Iron
1020
50.0
ug/L
1000
102
92 75-125 3
20
Magnesium
9120
100
ug/L
2000
7360
88 75-125 3
20
Potassium
12000
500
ug/L
10000
2130
98 75-125 2
20
Sodium
15800
500
ug/L
10000
6160
97 75-125 2
20
Post Spike (0009030-PSI)
Prepared:
03/09/2020
09:10 Analyzed: 03/12/2020 12:07
Source: CD03413-05
Spike
Source
%REC
RPD
Analvte
Result
Flaq POL
Units
Level
Result
%REC
Limits RPD
Limit
Notes
Calcium
21.5
0.100
mg/L
2.00
20.1
69
80-120
QM-08
Iron
1.10
0.0500
mg/L
1.00
0.102
100
80-120
Magnesium
8.80
0.100
mg/L
2.00
7.36
72
80-120
QM-08
Potassium
12.3
0.500
mg/L
10.0
2.13
102
80-120
Sodium
16.1
0.500
mg/L
10.0
6.16
99
80-120
Batch OCO9O13 - EPA 3OO5A
Blank (0009013-BLK3)
Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:16
Spike
Source
%REC
RPD
Analvte
Result
Flaq POL
Units
Level
Result
%REC
Limits RPD
Limit
Notes
Manganese
FINAL
0.500 U 1.00 ug/L
This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 12

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO9O13 - EPA 3OO5A - Continued
LCS (0009013-BS3)
Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:21
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
197
1.00
ug/L
200 99 80-120
Matrix Spike (0009013-MS1)
Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:25
Source: CD03413-05
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
387
2.00
ug/L
400 3.02 96 75-125
Matrix Spike Dup (0009013-MSD1)
Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:29
Source: CD03413-05
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
386
2.00
ug/L
400 3.02 96 75-125 0.03
20
Post Spike (0009013-PS1)
Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:33
Source: CD03413-05
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
214
1.00
ug/L
200 1.51 106 75-125
Batch OEO4O25 - EPA 3OO5A
Blank (OE04025-BLK3)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 11:47
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
0.500
U
1.00
ug/L
LCS (OE04025-BS1)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 11:59
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
220
1.00
ug/L
200 110 80-120
Matrix Spike (OE04025-MS1)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 12:03
Source: CD03415-01RE1
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
4660
E
1.00
ug/L
200 9070 NR 75-125
QM-07,
QM-16
Matrix Spike Dup (OE04025-MSD1)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 12:07
Source: CD03415-01RE1
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
4220
E
1.00
ug/L
200 9070 NR 75-125 10
20
QM-07,
QM-16
Post Spike (OE04025-PS3)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 12:12
Source: CD03415-01RE1
Spike Source %REC
RPD
Analvte
Result
Flaq
Q
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
4250
E
1.00
ug/L
200 9070 NR 75-125
QM-08,
QM-16
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 12

(� �Eo
www.encolabs.com
FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based
on acceptable LCS recovery.
QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test).
QM-16 Matrix spike recovery could not be calculated due to high concentration of analyte in source sample.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 of 12

I
7J
f
C
2z
N
N
N
N
o
N
N
N
N
N
v
v
m
A C'Y
m
m 3
2
a FD
W
s
a
m
O
O
w
m a
(A
W-
A L"
"
cr
m
m
t,>
0
0
a
-
v CDn
?
w
n
o
w p
CD
J
m
G)
0
8
C>
W C3
G_
_
_ 1
C,
G
_
NNN
_
CN
§
afp,
_
- C7�
_
(
o
T
Fif m
4
,
Q
CD
C C G L
�
n �
-4
r
V
-4
-1
rl
V
-1
'd
V --4
n
x
x
x
x
x
x
x
x
x
x
x
0
x
x
x
x
x
x
x
x
x
x
x
� O
O
o
�
e
�
6
1
826M Appendix 1,82501) SIM ID
AaAS,80,80.Cd,Co,Cr,Cu,N I, Pb.Sb.Se,
SA TI, V,Zn
1
,0
°Nz
N o n <
4, T j
m
O
A Z
�m
z
r
n
C
N O f11
� � n
SP o
z
��w r
�xn
m o Ili
A & S O
m
M
-a
o �O
m
rn
0
n
z
O
n
o m
a £ �
= O
JvJ
Q 1
�p C
w m
rn
n C7
O
N m
v
C,
0
Cr
o
Z
cn w
O
(U
P
� cc
C {p
'3O
p
NCD
x
cn
w'
m �
y
_! Q
T-
n
a
W
�
Q
n. �
a
Page 9 of 12

c
y
�
w m
m �
�
n
ro
y D
n L
a
\
D
n
6
�
f �
� m
m'
w o
�
� 3
�
a
8
6 Q
m m
J�
C6
m
=
Ln
a W
C+
m
P
w
fA 2 W
F 3 rn
m
m
0
C
CD
N
N
a
n CA
ro N
G
Ptr
U]
n
In
a
m (F)
n
:r
0)
c
n,
n
W
V
00
0
4
vaom
= �Z
N
q
a C
N 9 C
ro
m
cq 0
+•�
a� v�
ffi�
M
�.
vQ
3
3
X=
�,W
r
o�
�
0
a
a,
m
co
CD
D
� �
x
cp
o @ v 0
N
..J
cr
O z
❑
y W �
ca
m
ro w M
N �
p O
X
X
82600 Appendix 1,62600
SIM ID
m
m
rn
A&As,S&,9e, Cd,Co, Cr,Cu,Nl,i$,5b,Se,
Se,T I,V,Zn
0
2
a
z
z
0
W N
7
U7
7U
A
o C
y CL
n
N
n 0
v
x v
q
a
A m
ro
4 0
N
0
v
r
:E
ID 01
CD
3
WA
fV
X
.�°°
a
CD
A
0
3
Q-
w
C
=
a
°
a
Page 10 of 12

Sample Preservation Verification
ENCO Cary
Work Order: CD03413 Project:
Client: Golder Associates, Inc. (G0007) Project #:
Logged In: 06-Mar-20 13:54 �t Logged By: John C King
Preservation Check Performed By: 4 1 Date/Time
CD03413-01
ccO
Hanes Mill LF- Active Sub D
19117535.403
Coat
Type
Pres (pH)
Requirement
pH Checked !
In Contrnl
Datefrime
pH Adjusted
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
Y I N/ NA
Y I t(�y ! NA
C D03413-02
Conn
Type
Pres (pH)
Requirement
pH Checked /
In Control
pH Adjusted Dateff1 '
Adjusted
Reagent UsedlComments
A
250mLP+HNO3
<2
! N I NA
Y 1 ,-N / NA
C D03413-03
Conn
Type
Pres (pH)
Requirement
pH Checked /
In Control
pH Adjusted Date/Time
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
(Y_, 1 N / NA
Y /(NJ I NA
C D03413-04
Cont
Type
Pres (PH)
pH Checked I
pH Adjusted DateFTm.e
Reagent Used/Comments
Requirement
A Control
Adjusted
A
250mLP+HNO3
<2
Y I N / NA
Y ! ,N / NA
CD03413-05
Cora
Type
Pres (pH)
Requirement
pH Checked /
In Control
pH Adjusted Date/Time
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
`(1 N / NA
Y IL�V! NA
B
250mLP+HNO3
<2
1 N/ NA
Y 1 / NA
CD03413-06
Cont
Type
Pres (PH)
Requirement
pH Checked /
In Control
pH Adjusted DatelTme
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
`Y 1 N / NA
Y ! N '1 NA
C D03413-07
Cont
'Type
Pres (PH)
Requirement
pH Checked /
In Control
DateMme
Adjusted pH Adjusted
Reagent UsedlComments
A
250mLP+HNO3
<2
/ N / NA
Y / ,) / NA
CD03413-08
Co.J..
Type
Pres (PH)
pH Checked /
pH Adjusted DateiTime
Reagent Used/Comments
Requirement
n Control
Adjusted
A
250mLP+HNO3
<2
Y I N/ NA
Y /0 ! NA
C:IELMNTIPrintlwko_Preservation Check. rpt I Page 11 of 12

Sample Preservation Verification
ENCO Cary
Work Order: CD03413 Project: Hanes Mill LF- Active Sub D
Client: Golder Associates, Inc. (GO007) Project #: 19117535.403
Logged In: 06-Mar-20 13:54 _ Logged By: John C King /
Preservation Check Performed By: t"~ Date/Time: �6' 20 / kL'
CD03413-09
Cont
Type
Pres (pH)
Requirement
pH Checked/
In Control
pH Adjusted DatelTime
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
1 1 N 1 NA
Y INN 1 NA
CD03413-10
Cont
Type
Pres (pH)
pH Checked I
pH Adjusted DatelTme
Reagent Used/Comments
Requirement
In Control
Adjusted
A
250mLP+HNO3
<2
Y I N I NA
Y! I NA
C D03413-11
Cont
Ty0e
Pres (pH)
pH Checked /
pH Adjusted Date/Tit e
Reagent Used/Comments
Requirement
In Control
Adjusted
A
250mLP+HNO3
<2
Y! N I NA
Y I ,N; 1 NA
CD03413-12
Cont
Type
Pres (pH)
pH Checked 1
pH Adjusted DateMme
Reagent Used/Comments
Requirement
In Control
Adjusted
A
250mLP+HNO3
<2
Y 1 N/ NA
Y! 1 NA
C003413-13
Cont
Type
Pres (pH)
pH Checked /
pH Adjusted Daterrime
Reagent Used/Comments
Requirement
In Control
Adjusted
A
250mLP+HNO3
<2
Y''! N / NA
Y 1;N 1 NA
C D03413-15
Cont
Type
Pres (PH)
Requirement
PH Checked !
in Control
pH Adjusted Date/Time
Adjusted
Reagent Used/Comments
A
250mLP+HNO3 [F]
<2
1 N 1 NA
Y 1 L� 1 NA
CD03413-16
Cont
Type
Pres (pH)
Requirement
PH Checked f
In Control
pH Adjusted DateMme
Adjusted
Reagent Used/Comments
A
250mLP+HNO3 [F]
<2 -
1 N 1 NA
Y /& / NA
Rea ent Name ID
1
2
pH Strip ID:}/'��
Reagent Name ID
3
4
Reacient Name ID
5
6
C:IELMNTIPrintlwko_Preservation Check. rpt I Page 12 of 12

ENCO Laboratones
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, June 1, 2020
Golder Associates, Inc. (G0007)
Attn: Dusty Reedy
5B Oak Branch Drive
Greensboro, NC 27407
RE: Laboratory Results for
Project Number: 19117535.102, Project Name/Desc: Hanes Mill LF- Closed Sub D
ENCO Workorder(s): CD03415
Dear Dusty Reedy,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Friday, March 6, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Daniel B. Mays
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of

(� �Eo
www.encolabs.com
SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: 3402-MW6 (MS/MSD)
Lab ID: CD03415-01
Sampled: 03/05/20 10:36
Received: 03/06/20 13:45
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
09/01/20
03/09/20 09:22
03/13/20 10:53
EPA 6010D
EPA 3005A
09/01/20
03/09/20 09:22
03/13/20 11:03
Client ID: 3402-MW6 (MS/MSD)
Lab ID: CD03415-01RE3
Sampled: 03/05/20 10:36
Received: 03/06/20 13:45
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6020E
EPA 3005A
09/01/20
03/09/20 09:45
05/12/20 12:46
Client ID: 3402-MW11
Lab ID: CD03415-06
Sampled: 03/03/20 13:12
Received: 03/06/20 13:45
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
08/30/20
03/09/20 09:22
03/13/20 11:42
EPA 6020E
EPA 3005A
08/30/20
03/09/20 09:45
03/13/20 04:38
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of

(� �Eo
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: 3402-MW6 (MS/MSD)
Lab ID:
CD03415-01
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Calcium - Total
69600
39.0
100
ug/L
EPA 6010D
Iron - Total
72200
22.0
50.0
ug/L
EPA 6010D
Magnesium - Total
19700
29.0
100
ug/L
EPA 6010D
Potassium - Total
6470
150
500
ug/L
EPA 6010D
Sodium - Total
10700
400
500
ug/L
EPA 6010D
Client ID: 3402-MW6 (MS/MSD)
Lab ID:
CD03415-01RE3
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Manganese - Total
9070
D
10.0
20.0
ug/L
EPA 6020E
Client ID: 3402-MW31
Lab ID:
CD03415-06
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Calcium - Total
6500
39.0
100
ug/L
EPA 6010D
Iron - Total
35.3
1
22.0
50.0
ug/L
EPA 6010D
Magnesium - Total
5520
29.0
100
ug/L
EPA 6010D
Manganese - Total
6.29
1.00
2.00
ug/L
EPA 6020E
Potassium - Total
1780
150
500
ug/L
EPA 6010D
Sodium - Total
2040
400
500
ug/L
EPA 6010D
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 11

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-MW6 (MS/MSD) Lab Sample ID:CDO3415-01 Received: 03/06/20 13:45
Matrix: Ground Water Sampled:03/05/20 10:36 Work Order: CD03415
Project: Hanes Mill LF- Closed Sub D Sampled By: Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results Flaa
Units
LF
MDL
POLL
Batch
Method
Analyzed
Ay Notes
Calcium [7440-70-2]^
69600
ug/L
1
39.0
100
0009011
EPA 6010D
03/13/20 10:53
JDH
Iron [7439-89-6]^
72200
ug/L
1
22.0
50.0
0009011
EPA 6010D
03/13/20 11:03
JDH
Magnesium [7439-95-4]^
19700
ug/L
1
29.0
100
0009011
EPA 6010D
03/13/20 11:03
JDH
Manganese [7439-96-5]^
9070 D
ug/L
20
10.0
20.0
0009014
EPA 6020B
05/12/20 12:46
RLF
Potassium [7440-09-7]^
6470
ug/L
1
150
500
0009011
EPA 6010D
03/13/20 11:03
JDH
Sodium [7440-23-5]^
10700
ug/L
1
400
500
0009011
EPA 6010D
03/13/20 11:03
JDH
Description: 3402-MWll Lab Sample ID:CDO3415-06 Received: 03/06/20 13:45
Matrix: Ground Water Sampled:03/03/20 13:12 Work Order: CD03415
Project: Hanes Mill LF- Closed Sub D Sampled By: Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa Units
DF
MDL
P L
Batch
Method
Analyzed
By Notes
Calcium [7440-70-2]^
6500
ug/L
1
39.0
100
0009011
EPA 6010D
03/13/20 11:42
JDH
Iron [7439-89-6]^
35.3
J ug/L
1
22.0
50.0
0009011
EPA 6010D
03/13/20 11:42
JDH
Magnesium [7439-95-4]^
5520
ug/L
1
29.0
100
0009011
EPA 6010D
03/13/20 11:42
JDH
Manganese [7439-96-5]^
6.29
ug/L
2
1.00
2.00
0009014
EPA 6020E
03/13/20 04:38
RLF
Potassium [7440-09-7]^
1780
ug/L
1
150
500
0009011
EPA 6010D
03/13/20 11:42
JDH
Sodium [7440-23-5]^
2040
ug/L
1
400
500
0009011
EPA 6010D
03/13/20 11:42
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of 11

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO9O11 - EPA 3OO5A
Blank (0009011-BLK1)
Prepared: 03/09/2020 09:22 Analyzed: 03/13/2020 10:29
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
Blank (0009011-BLK2)
Prepared: 03/09/2020 09:22 Analyzed: 03/13/2020 10:32
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
LCS (0009011-BS3)
Prepared: 03/09/2020 09:22 Analyzed: 03/13/2020 11:06
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
2000
100
ug/L
2000
100 80-120
Iron
970
50.0
ug/L
1000
97 80-120
Magnesium
1940
100
ug/L
2000
97 80-120
Potassium
9730
500
ug/L
10000
97 80-120
Sodium
9710
500
ug/L
10000
97 80-120
Matrix Spike (0009011-MS1)
Prepared:
03/09/2020
09:22 Analyzed: 03/13/2020 11:09
Source: CD03415-01
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
72900
100
ug/L
2000
69600
164 75-125
QM-07
Iron
73000
50.0
ug/L
1000
72200
82 75-125
Magnesium
22400
100
ug/L
2000
19700
133 75-125
QM-07
Potassium
16500
500
ug/L
10000
6470
101 75-125
Sodium
20900
500
ug/L
10000
10700
101 75-125
Matrix Spike Dup (0009011-MSD1)
Prepared:
03/09/2020
09:22 Analyzed: 03/13/2020 11:12
Source: CD03415-01
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
72100
100
ug/L
2000
69600
123 75-125 1
20
Iron
93800
50.0
ug/L
1000
72200
NR 75-125 25
20
QM-07
Magnesium
22000
100
ug/L
2000
19700
113 75-125 2
20
Potassium
16500
500
ug/L
10000
6470
100 75-125 0.2
20
Sodium
20800
500
ug/L
10000
10700
101 75-125 0.3
20
Post Spike (0009011-PS1)
Prepared:
03/09/2020
09:22 Analyzed: 03/13/2020 11:16
111
Source: CD03415-01
Spike
Source
%REC RPD
Analvte Result Flaq POL Units
Level
Result
%REC Limits RPD Limit Notes
Calcium 70.7 0.100 mg/L
2.00
69.6
52 80-120 QM-08
Iron 73.3 0.0500 mg/L
1.00
72.2
107 80-120
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 11

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO9O11 - EPA 3OO5A - Continued
Post Spike (0009011-PS1) Continued
Prepared: 03/09/2020 09:22 Analyzed: 03/13/2020 11:16
Source: CD03415-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Magnesium
21.9
0.100
mg/L
2.00 19.7 109 80-120
Potassium
16.7
0.500
mg/L
10.0 6.47 102 80-120
Sodium
20.9
0.500
mg/L
10.0 10.7 102 80-120
Batch OCO9O14 - EPA 3OO5A
Blank (0009014-BLK3)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:28
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
0.500
U
1.00
ug/L
LCS (0009014-BS1)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:32
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
192
1.00
ug/L
200 96 80-120
Matrix Spike (0009014-MS1)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:37
Source: CD03415-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
8010
E
2.00
ug/L
400 7400 153 75-125
QM-07,
QM-16
Matrix Spike (0009014-MS2)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:41
Source: CD04266-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
819
2.00
ug/L
400 425 99 75-125
Matrix Spike Dup (0009014-MSD1)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:45
Source: CD03415-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
7670
E
2.00
ug/L
400 7400 69 75-125 4
20
QM-07,
QM-16
Matrix Spike Dup (0009014-MSD2)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:49
Source: CD04266-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
806
2.00
ug/L
400 425 95 75-125 2
20
Post Spike (0009014-PSI)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:54
Source: CD03415-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
3800
E
1.00
ug/L
200 3700 52 75-125
QM-08,
QM-16
Batch OEO4O25 - EPA 3OO5A
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 11

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OEO4O25 - EPA 3OO5A - Continued
Blank (OE04025-BLK1)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 11:47
Spike Source %REC
RPD
Analvte Result
Flaq
POL Units Level Result %REC Limits RPD
Limit
Notes
Manganese 0.500
U
1.00 ug/L
Matrix Spike (OE04025-MS1)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 12:03
Source: CD03415-01RE1
Spike Source %REC
RPD
Analvte Result
Flaq
POL Units Level Result %REC Limits RPD
Limit
Notes
Manganese 4660
E
1.00 ug/L 200 9070 NR 75-125
QM-07,
QM-16
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 11

(� �Eo
www.encolabs.com
FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based
on acceptable LCS recovery.
QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test).
QM-16 Matrix spike recovery could not be calculated due to high concentration of analyte in source sample.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 of 11

0
3
f
a
m
x
v
x
m
n
D
a
m
N
\'
v
1
y
c
H
e
c
�
c
m
Ja
y
v
n
m
m
N
O
m
m
N
W
W
m
OR
n
a
a
n -g
@ m
w
6 n
CD
sy
m
CJ�
cr
tt
CD
-
�
3
N
13
--7
w
G7 a
c�►
3
O
O
O
t7
Ctt�
Q
3
OD
rip
1O,�
lO
�_
m
m
Ln
W
S
5
S
-4
V
J
s
CD
0)
n
Q
Z
�S
C)
Ga
t/lj
r -
m w
N
A
^--
N�
�
� W
•-,
m
O
�
d
11l
lam,,•
tyli-��•
v
=
O
R1
2
Z
a
•.�- ?
n
'*�' o
to
m m
i 3
^J
Y
/\
0
Y/`/
,�j m
m ? X
D
L
cc X
perp'
Q
r
V
u
A
V
V
•mil
o, m
N
O
UNMOOR
■©©©©l
8260DAppendix 1,8260D SIM ID
Ag,As•BIa,Be,Cd,Cio Cr,Cu,NI,Pb,Sh,S®,
8sj1,V,Zn
m
ea [7
�
d
D
Q V
W
a
�
a
N
� N
v
�
h
r
�
CO
III
O
n
m ]y
� In
c (d
+
ID
( m
x
c
a
D
m
r
CD
dC
�r
d
CD -
Page 10
of 11

Sample Preservation Verification
ENCO Cary
Work Order: CD03415 Project:
Client: Golder Associates, Inc. (G0007) Project #:
Logged In: 06-Mar-20 14,04 _ Logged By:
Preservation Check Performed By:
CDO3415-01
Hanes Mill LF- CIcsed Sub D
19117535.102
John C King
Date/Time:
Cont
Type
Pres (pH)
pH Checked /
pH Adjusted Date/Time
Reagent Used/Comments
In Control
Adjusted
A
250mLP+HNO3
<2
Y- / N ! NA
Y IZ I NA
B
250mLP+HNO3
<2
I N I NA
Y 1�o 1 NA
CD03415-02
Cont
Type
Pres (pH)
Requirement
pH Checked /
In Control
pH Adjusted Date/Time Reagent Used/Comments
Adjusted
A
250mLP+HNO3
<2
IY rl N / NA
Y /:•T4, / NA
CD03415-03
Cont
Type.
Pres (pH)
Requirement
pH Checked 1
I -Ip Control
pH Adjusted Date/Time
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
/ N / NA
Y NA
CD03415-04
Cant
Type
Pres (pH)
Requirement
pH Checked /
In Control
pH Adjusted DatelTime
Adrusted
Reagent Used/Comments
A
250mLP+HNO3
<2
Y!/ N / NA
Y ILv / NA
CD03415-05
Cont
Type
Pres (pH)
Requirement
pH Checked/
In Control
Tim Datele
pH Adjusted Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
I N / NA
Y I NA
CD03415-06
Cont
Type
Pres (pH)
Requirement
pH Checked 1
In Control
pH Adjusted DatelTime
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
(Y)1 N I NA
Y I NA
Rea ent Name ID
1
2
pH Strip ID:
Reagent Name ID
3
4
Reagent Name ID
5
6
C IELMNT1PrmtlwkoWPreservationCheck. rpt Page 11 of 11

ENCO Laboratones
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, June 1, 2020
Golder Associates, Inc. (G0007)
Attn: Dusty Reedy
5B Oak Branch Drive
Greensboro, NC 27407
RE: Laboratory Results for
Project Number: 19117535.401, Project Name/Desc: Hanes Mill LF- Closed Unlined
ENCO Workorder(s): CD03416
Dear Dusty Reedy,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Tuesday, March 3, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Daniel B. Mays
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 9

(� �Eo
www.encolabs.com
SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: 3402-MW1RR Lab ID: CD03416-01 Sampled: 03/02/20 14:25 Received: 03/03/20 13:30
Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s)
EPA 6010D EPA 3005A 08/29/20
EPA 6020E EPA 3005A 08/29/20
03/04/20 09:04 03/06/20 10:41
03/04/20 09:40 03/04/20 16:41
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 Of 9

(� �Eo
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: 3402-MW1RR
Lab ID:
CD03416-01
Analvte
Results
Flag MDL
PQL
Units
Method Notes
Calcium - Total
35900
39.0
100
ug/L
EPA 6010D
Magnesium - Total
6400
29.0
100
ug/L
EPA 6010D
Manganese - Total
10.2
1.00
2.00
ug/L
EPA 6020E
Potassium - Total
4520
150
500
ug/L
EPA 6010D
Sodium - Total
8680
400
500
ug/L
EPA 6010D
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 9

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-MWlRR Lab Sample ID:CDO3416-01 Received: 03/03/20 13:30
Matrix: Ground Water Sampled:03/02/20 14:25 Work Order: CD03416
Project: Hanes Mill LF- Closed Unlined Sampled By: Nicolas Tejada/Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results Flaa
Units
DF
MDL
POLL
Batch
Method
Analyzed
Ay Notes
Calcium [7440-70-2]^
35900
ug/L
1
39.0
100
0003040
EPA 6010D
03/06/20 10:41
JDH
Iron [7439-89-6]^
22.0 U
ug/L
1
22.0
50.0
0003040
EPA 6010D
03/06/20 10:41
JDH
Magnesium [7439-95-4]^
6400
ug/L
1
29.0
100
0003040
EPA 6010D
03/06/20 10:41
JDH
Manganese [7439-96-5]^
10.2
ug/L
2
1.00
2.00
0004029
EPA 6020B
03/04/20 16:41
RLF
Potassium [7440-09-7]^
4520
ug/L
1
150
500
0003040
EPA 6010D
03/06/20 10:41
JDH
Sodium [7440-23-5]^
8680
ug/L
1
400
500
0003040
EPA 6010D
03/06/20 10:41
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 of 9

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO3O4O - EPA 3OO5A
Blank (0003040-BLK1)
Prepared: 03/04/2020 09:04 Analyzed: 03/06/2020 10:35
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
Blank (0003040-BLK2)
Prepared: 03/04/2020 09:04 Analyzed: 03/06/2020 10:38
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
LCS (0003040-BS1)
Prepared: 03/04/2020 09:04 Analyzed: 03/06/2020 10:45
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
2040
100
ug/L
2000
102 80-120
Iron
992
50.0
ug/L
1000
99 80-120
Magnesium
1980
100
ug/L
2000
99 80-120
Potassium
9890
500
ug/L
10000
99 80-120
Sodium
9880
500
ug/L
10000
99 80-120
Matrix Spike (0003040-MS1)
Prepared:
03/04/2020
09:04 Analyzed: 03/06/2020 10:48
Source: CD03416-01
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
37100
100
ug/L
2000
35900
57 75-125
QM-07
Iron
1010
50.0
ug/L
1000
22.0 U
101 75-125
Magnesium
7980
100
ug/L
2000
6400
79 75-125
Potassium
14200
500
ug/L
10000
4520
97 75-125
Sodium
18300
500
ug/L
10000
8680
96 75-125
Matrix Spike Dup (0003040-MSD1)
Prepared:
03/04/2020
09:04 Analyzed: 03/06/2020 10:51
Source: CD03416-01
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
37200
100
ug/L
2000
35900
62 75-125 0.3
20
QM-07
Iron
914
50.0
ug/L
1000
22.0 U
91 75-125 10
20
Magnesium
8050
100
ug/L
2000
6400
82 75-125 0.8
20
Potassium
14100
500
ug/L
10000
4520
96 75-125 0.5
20
Sodium
18300
500
ug/L
10000
8680
96 75-125 0.4
20
Post Spike (0003040-PS1)
Prepared:
03/04/2020
09:04 Analyzed: 03/06/2020 10:53
111
Source: CD03416-01
Spike
Source
%REC RPD
Analvte Result Flaq POL Units
Level
Result
%REC Limits RPD Limit Notes
Calcium 36.9 0.100 mg/L
2.00
35.9
45 80-120 QM-08
Iron 1.02 0.0500 mg/L
1.00
0.0150
100 80-120
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) Of 9

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO3O4O - EPA 3OO5A - Continued
Post Spike (0003040-PS1) Continued Prepared: 03/04/2020 09:04 Analyzed: 03/06/2020 10:53
Source: CD03416-01
Spike Source %REC RPD
Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes
Magnesium 8.09 0.100 mg/L 2.00 6.40 84 80-120
Potassium 14.6 0.500 mg/L 10.0 4.52 101 80-120
Sodium 18.8 0.500 mg/L 10.0 8.68 101 80-120
Batch OCO4O29 - EPA 3OO5A
Blank (0004029-BLK3) Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:11
Spike Source %REC RPD
Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes
Manganese 0.500 U 1.00 ug/L
LCS (0004029-BS1) Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:16
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
196
1.00
ug/L
200 98 80-120
Matrix Spike (0004029-MS1)
Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:20
Source: CD03417-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
467
2.00
ug/L
400 71.6 99 75-125
Matrix Spike Dup (0004029-MSD1)
Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:24
Source: CD03417-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
461
2.00
ug/L
400 71.6 97 75-125 1
20
Post Spike (0004029-PS1)
Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:29
Source: CD03417-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
235
1.00
ug/L
200 35.8 100 75-125
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 9

(� �Eo
www.encolabs.com
FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based
on acceptable LCS recovery.
QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test).
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 of 9

E
n
V
VF
,Y
0
V
CJ
'
CC)
OID
c U) W
7p(1f?
C]
' \
¢
P
- s
a
0'
O
N
90 4 EMS 001
m
U
m
4
00E 8l`•' ns
U
d
Z•£9£ XON
m
m
OHo
1"1
2
ul
Z•C9C N 9E OWN'DO£ ePPOILIO
m
d
�
a
U
�z'n'IL`�s`as
o
oS R$`4ci'IN'�3 rJ d'3'CJ oB's8'�Y �tl
xFo
at wls a0azs PeP��xa
�°
ODM' b xlpuoddv cowl;
V.
o �
.�
�o
�
U
G
•E
x
� y
�
U
G
LL
y.
m
Cr)
3
(D
f
m
Ln
N
o
°
�
n
U
a e-
m C
U N
Cj
b
g
l
a
4! r
Z m
m =
pp
m
CJ Lai
'�4
p
w
S
0
0
a
=
d
d
¢
to
�
N
N
1
0
40
Q
CD
((t
•�,
N
z
r
c
C
n
�
�,
MEM�
m
off'
or^
a
Q]
d n�
¢ m
c U
a
a
U
I
0
2 �F
a
m
a
Z
¢
v
m
m
m
m
m
a M
o
ro
a
a
u
m
c
N I
a
N
Q
N
c
v
c
c
¢
c
S
4
U
E
! „
0
m
m
d Q
�
o
m
�
�
ro
�
aCo
d �
�
CL
E
I Page 8 of f

Sample Preservation Verification
ENCO Cary
Work Order: CD03416 Project:
Client: Golder Associates, Inc. (GO007) Project #
Logged In: 03-Mar-20 15:12 Logged By:
Preservation Check Performed By: ' JW
C D03416-01
Hanes Mill LF- Closed Unlined
19117535.401
Rachel Ann Yonish
Date/Time: � Z�
Cont
yp
Type
#gyres (pH)
Requirement
pH Checked !
In Control
❑ateMime
PH Adjusted Adjusted
Reagent Used/Comments
B
250mLP+H2SO4
<2
N A. NA
Y / ^ / NA
C
250mLP+HNO3
<2
Y 1 N I NA
Y 1 N/ NA
Rea ent Name ID
1
2
pH Strip ID:
PH Strips COA0898
Rea ent Name ID
3
4
Rea ent Name ID
5
6
C,lelmnt\Prir ,G�%=i vationGheck.rpt I Page 9 of 9 1

ENCO Laboratones
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, June 1, 2020
Golder Associates, Inc. (G0007)
Attn: Dusty Reedy
5B Oak Branch Drive
Greensboro, NC 27407
RE: Laboratory Results for
Project Number: 19117535.403, Project Name/Desc: Hanes Mill LF- Leachate
ENCO Workorder(s): CD03418
Dear Dusty Reedy,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Tuesday, March 3, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Daniel B. Mays
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of O

(� �Eo
www.encolabs.com
SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: 3402-Leachate Lab ID: CD03418-01 Sampled: 03/02/20 15:35 Received: 03/03/20 13:30
Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s)
EPA 6010D EPA 3005A 08/29/20
EPA 6020E EPA 3005A 08/29/20
03/04/20 09:04 03/06/20 11:35
03/04/20 09:40 03/04/20 17:11
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 10

(� �Eo
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: 3402-Leachate
Lab ID:
CD03418-01
Analvte
Results
Flag MDL
PQL
Units
Method Notes
Calcium - Total
97300
39.0
100
ug/L
EPA 6010D
Iron - Total
15700
22.0
50.0
ug/L
EPA 6010D
Magnesium - Total
50200
29.0
100
ug/L
EPA 6010D
Manganese - Total
2300
D 5.00
10.0
ug/L
EPA 6020E
Potassium - Total
84500
150
500
ug/L
EPA 6010D
Sodium - Total
267000
400
500
ug/L
EPA 6010D
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 10

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-Leachate Lab Sample ID:CDO3418-01 Received: 03/03/20 13:30
Matrix: Waste Water Sampled:03/02/20 15:35 Work Order: CD03418
Project: Hanes Mill LF- Leachate Sampled By: Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results Flaa
Units
DF
MDL
POLL
Batch
Method
Analyzed
Ay Notes
Calcium [7440-70-2]^
97300
ug/L
1
39.0
100
0003040
EPA 6010D
03/06/20 11:35
JDH
Iron [7439-89-6]^
15700
ug/L
1
22.0
50.0
0003040
EPA 6010D
03/06/20 11:35
JDH
Magnesium [7439-95-4]^
50200
ug/L
1
29.0
100
0003040
EPA 6010D
03/06/20 11:35
JDH
Manganese [7439-96-5]^
2300 D
ug/L
10
5.00
10.0
0004029
EPA 6020B
03/04/20 17:11
RLF
Potassium [7440-09-7]^
84500
ug/L
1
150
500
0003040
EPA 6010D
03/06/20 11:35
JDH
Sodium [7440-23-5]^
267000
ug/L
1
400
500
0003040
EPA 6010D
03/06/20 11:35
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of 10

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO3O4O - EPA 3OO5A
Blank (0003040-BLK1)
Prepared: 03/04/2020 09:04 Analyzed: 03/06/2020 10:35
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
Blank (0003040-BLK2)
Prepared: 03/04/2020 09:04 Analyzed: 03/06/2020 10:38
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
LCS (0003040-BS1)
Prepared: 03/04/2020 09:04 Analyzed: 03/06/2020 10:45
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
2040
100
ug/L
2000
102 80-120
Iron
992
50.0
ug/L
1000
99 80-120
Magnesium
1980
100
ug/L
2000
99 80-120
Potassium
9890
500
ug/L
10000
99 80-120
Sodium
9880
500
ug/L
10000
99 80-120
Matrix Spike (0003040-MS1)
Prepared:
03/04/2020
09:04 Analyzed: 03/06/2020 10:48
Source: CD03416-01
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
37100
100
ug/L
2000
35900
57 75-125
QM-07
Iron
1010
50.0
ug/L
1000
22.0 U
101 75-125
Magnesium
7980
100
ug/L
2000
6400
79 75-125
Potassium
14200
500
ug/L
10000
4520
97 75-125
Sodium
18300
500
ug/L
10000
8680
96 75-125
Matrix Spike Dup (0003040-MSD1)
Prepared:
03/04/2020
09:04 Analyzed: 03/06/2020 10:51
Source: CD03416-01
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
37200
100
ug/L
2000
35900
62 75-125 0.3
20
QM-07
Iron
914
50.0
ug/L
1000
22.0 U
91 75-125 10
20
Magnesium
8050
100
ug/L
2000
6400
82 75-125 0.8
20
Potassium
14100
500
ug/L
10000
4520
96 75-125 0.5
20
Sodium
18300
500
ug/L
10000
8680
96 75-125 0.4
20
Post Spike (0003040-PS1)
Prepared:
03/04/2020
09:04 Analyzed: 03/06/2020 10:53
111
Source: CD03416-01
Spike
Source
%REC RPD
Analvte Result Flaq POL Units
Level
Result
%REC Limits RPD Limit Notes
Calcium 36.9 0.100 mg/L
2.00
35.9
45 80-120 QM-08
Iron 1.02 0.0500 mg/L
1.00
0.0150
100 80-120
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 10

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO3O4O - EPA 3OO5A - Continued
Post Spike (0003040-PS1) Continued Prepared: 03/04/2020 09:04 Analyzed: 03/06/2020 10:53
Source: CD03416-01
Spike Source %REC RPD
Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes
Magnesium 8.09 0.100 mg/L 2.00 6.40 84 80-120
Potassium 14.6 0.500 mg/L 10.0 4.52 101 80-120
Sodium 18.8 0.500 mg/L 10.0 8.68 101 80-120
Batch OCO4O29 - EPA 3OO5A
Blank (0004029-BLK3) Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:11
Spike Source %REC RPD
Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes
Manganese 0.500 U 1.00 ug/L
LCS (0004029-BS1) Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:16
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
196
1.00
ug/L
200 98 80-120
Matrix Spike (0004029-MS1)
Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:20
Source: CD03417-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
467
2.00
ug/L
400 71.6 99 75-125
Matrix Spike Dup (0004029-MSD1)
Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:24
Source: CD03417-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
461
2.00
ug/L
400 71.6 97 75-125 1
20
Post Spike (0004029-PS1)
Prepared: 03/04/2020 09:40 Analyzed: 03/04/2020 16:29
Source: CD03417-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
235
1.00
ug/L
200 35.8 100 75-125
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 10

(� �Eo
www.encolabs.com
FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based
on acceptable LCS recovery.
QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test).
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 of O

E
0
V
N
0
u
r_
G7
3
0
cc
0
0
LLI
cc
0
M
U
LL
0
z
U
N
w
0
h
Q
Q
0
Q
J
Z
0
i
W
fN
Z
0
U
Z
LU
2
z
0
cc
Z
LiJ
U
c m
_0
c�
F
M
m
k
Y
U
`MO
a
°
VI
�
�F� in w
F �'�}
_w
"r
EM
41
�
m m N
0
37 ❑
(n
H
•r
z
.n r 1
J€
Q p
�
n
�
n
in
U
�
rt
_ y
Qo'tgZWS SSl
ooe ej "„G jInvC
r
3
O y
�E
ZT99- N 3O AIIJVN
(`N
$
c i
o
"_
OH
U
d
nQ
a
a
t/l Q
w
°
DozZ9WS Goo
"IV
BUM48 008
z
r
C
U
E N
m N
E
o
E
o
2 5
m
d`Z'£9£ XON� L'09£ ef�w'd
ueA*WQs
XipueddV 409Z9
V
a
in p
C V
N
N
� b
E ro
y
V
a r
0
�m
o
m a
(r!�
C
m
CL
v
v
m
IT�p
us
E T
C
V
G
J
C
C
C
m
O
z
Z_
L)
r
i
r o
&.
rn�
U
w
q
a
o
CL
O
a
s
m
m
m
a
N
�
Gi
a
m
N
4
a
a m
N °
z
�
U
W
Off(
o
w
m
p
[V
J�
d
a
�
U
a
d
m
m
1i
N
117
a
v
o
N
a: ]
n
0
17
E 0
m
�ti
C 0
V
L13o
Q
v
E
E
Q
Page 9of10

Sample Preservation Verification
ENCO Cary
FJ�ICO
Work Order: CD03418
Client: Golder Associates, Inc. (G0007)
Project: Hanes Mill LF- Leachate
Project # 19117535,403
Logged In: 03-Mar-20 14:58 -- -- Logged By: Rachel Ann Yonish
Preservation Check Performed By:
CD03418-01
Cont
Type
Pies (pH)
Requirement
pH Checked/
In Control
pH Adjusted DateMme
Adjusted
Reagent Used/Comments
D
250mLP+H2SO4
<2 1
Y Y N 1. NA
Y �' ! NA
E
250mLP+HNO3
<2
Y N / NA
Y NI1 NA
Reacient Name ID
1
2
pH Strip ID:
PH Strips COA089$
C:Ielmnt%Pril _.....--- ,,,0=1VCJL1VM neck.rpt
Reagent Name ID
3
4
Rea ent Name ID
5
6
Page 10 of 10

ENCO Laboratones
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, June 1, 2020
Golder Associates, Inc. (G0007)
Attn: Dusty Reedy
5B Oak Branch Drive
Greensboro, NC 27407
RE: Laboratory Results for
Project Number: 19117535.405, Project Name/Desc: Hanes Mill LF- Upgradient Wells
ENCO Workorder(s): CD03419
Dear Dusty Reedy,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Friday, March 6, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Daniel B. Mays
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of O

(� �Eo
www.encolabs.com
SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: 3402-MW23
Lab ID: CD03419-01
Sampled: 03/04/20 10:59
Received: 03/06/20 13:45
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
08/31/20
03/09/20 09:22
03/13/20 11:45
EPA 6020E
EPA 3005A
08/31/20
03/09/20 09:45
03/13/20 04:42
Client ID: 3402-MW24
Lab ID: CD03419-02
Sampled: 03/04/20 13:40
Received: 03/06/20 13:45
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
08/31/20
03/09/20 09:22
03/13/20 11:48
EPA 6020E
EPA 3005A
08/31/20
03/09/20 09:45
03/13/20 04:46
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 10

(� �Eo
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: 3402-MW23
Lab ID:
CD03419-01
Analvte
Results
Flag MDL
PQL
Units
Method Notes
Calcium - Total
3230
39.0
100
ug/L
EPA 6010D
Iron - Total
76.8
22.0
50.0
ug/L
EPA 6010D
Magnesium - Total
2190
29.0
100
ug/L
EPA 6010D
Manganese - Total
39.0
1.00
2.00
ug/L
EPA 6020E
Potassium - Total
2080
150
500
ug/L
EPA 6010D
Sodium - Total
2500
400
500
ug/L
EPA 6010D
Client ID: 3402-MW24
Lab ID:
CD03419-02
Analvte
Results
Flag MDL
PQL
Units
Method Notes
Calcium - Total
15800
39.0
100
ug/L
EPA 6010D
Iron - Total
145
22.0
50.0
ug/L
EPA 6010D
Magnesium - Total
8350
29.0
100
ug/L
EPA 6010D
Manganese - Total
21.3
1.00
2.00
ug/L
EPA 6020E
Potassium - Total
1270
150
500
ug/L
EPA 6010D
Sodium - Total
10900
400
500
ug/L
EPA 6010D
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 10

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-MW23 Lab Sample ID:CDO3419-01 Received: 03/06/20 13:45
Matrix: Ground Water Sampled:03/04/20 10:59 Work Order: CD03419
Project: Hanes Mill LF- Upgradient Wells Sampled By: Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa Units
LF
MDL
POLL
Batch
Method
Analyzed
Ay Notes
Calcium [7440-70-2]^
3230
ug/L
1
39.0
100
0009011
EPA 6010D
03/13/20 11:45
JDH
Iron [7439-89-6]^
76.8
ug/L
1
22.0
50.0
0009011
EPA 6010D
03/13/20 11:45
JDH
Magnesium [7439-95-4]^
2190
ug/L
1
29.0
100
0009011
EPA 6010D
03/13/20 11:45
JDH
Manganese [7439-96-5]^
39.0
ug/L
2
1.00
2.00
0009014
EPA 6020B
03/13/20 04:42
RLF
Potassium [7440-09-7]^
2080
ug/L
1
150
500
0009011
EPA 6010D
03/13/20 11:45
JDH
Sodium [7440-23-5]^
2500
ug/L
1
400
500
0009011
EPA 6010D
03/13/20 11:45
JDH
Description: 3402-MW24 Lab Sample ID:CDO3419-02 Received: 03/06/20 13:45
Matrix: Ground Water Sampled:03/04/20 13:40 Work Order: CD03419
Project: Hanes Mill LF- Upgradient Wells Sampled By: Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
By Notes
Calcium [7440-70-2]^
15800
ug/L
1
39.0
100
0009011
EPA 6010D
03/13/20 11:48
JDH
Iron [7439-89-6]^
145
ug/L
1
22.0
50.0
0009011
EPA 6010D
03/13/20 11:48
JDH
Magnesium [7439-95-4]^
8350
ug/L
1
29.0
100
0009011
EPA 6010D
03/13/20 11:48
JDH
Manganese [7439-96-5]^
21.3
ug/L
2
1.00
2.00
0009014
EPA 6020E
03/13/20 04:46
RLF
Potassium [7440-09-7]^
1270
ug/L
1
150
500
0009011
EPA 6010D
03/13/20 11:48
JDH
Sodium [7440-23-5]^
10900
ug/L
1
400
500
0009011
EPA 6010D
03/13/20 11:48
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of 10

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO9O11 - EPA 3OO5A
Blank (0009011-BLK1)
Prepared: 03/09/2020 09:22 Analyzed: 03/13/2020 10:29
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
Blank (0009011-BLK2)
Prepared: 03/09/2020 09:22 Analyzed: 03/13/2020 10:32
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
LCS (0009011-BS3)
Prepared: 03/09/2020 09:22 Analyzed: 03/13/2020 11:06
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
2000
100
ug/L
2000
100 80-120
Iron
970
50.0
ug/L
1000
97 80-120
Magnesium
1940
100
ug/L
2000
97 80-120
Potassium
9730
500
ug/L
10000
97 80-120
Sodium
9710
500
ug/L
10000
97 80-120
Matrix Spike (0009011-MS1)
Prepared:
03/09/2020
09:22 Analyzed: 03/13/2020 11:09
Source: CD03415-01
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
72900
100
ug/L
2000
69600
164 75-125
QM-07
Iron
73000
50.0
ug/L
1000
72200
82 75-125
Magnesium
22400
100
ug/L
2000
19700
133 75-125
QM-07
Potassium
16500
500
ug/L
10000
6470
101 75-125
Sodium
20900
500
ug/L
10000
10700
101 75-125
Matrix Spike Dup (0009011-MSD1)
Prepared:
03/09/2020
09:22 Analyzed: 03/13/2020 11:12
Source: CD03415-01
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
72100
100
ug/L
2000
69600
123 75-125 1
20
Iron
93800
50.0
ug/L
1000
72200
NR 75-125 25
20
QM-07
Magnesium
22000
100
ug/L
2000
19700
113 75-125 2
20
Potassium
16500
500
ug/L
10000
6470
100 75-125 0.2
20
Sodium
20800
500
ug/L
10000
10700
101 75-125 0.3
20
Post Spike (0009011-PS1)
Prepared:
03/09/2020
09:22 Analyzed: 03/13/2020 11:16
111
Source: CD03415-01
Spike
Source
%REC RPD
Analvte Result Flaq POL Units
Level
Result
%REC Limits RPD Limit Notes
Calcium 70.7 0.100 mg/L
2.00
69.6
52 80-120 QM-08
Iron 73.3 0.0500 mg/L
1.00
72.2
107 80-120
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 10

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO9O11 - EPA 3OO5A - Continued
Post Spike (0009011-PS1) Continued
Prepared: 03/09/2020 09:22 Analyzed: 03/13/2020 11:16
Source: CD03415-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Magnesium
21.9
0.100
mg/L
2.00 19.7 109 80-120
Potassium
16.7
0.500
mg/L
10.0 6.47 102 80-120
Sodium
20.9
0.500
mg/L
10.0 10.7 102 80-120
Batch OCO9O14 - EPA 3OO5A
Blank (0009014-BLK3)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:28
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
0.500
U
1.00
ug/L
LCS (0009014-BS1)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:32
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
192
1.00
ug/L
200 96 80-120
Matrix Spike (0009014-MS1)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:37
Source: CD03415-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
8010
E
2.00
ug/L
400 7400 153 75-125
QM-07,
QM-16
Matrix Spike (0009014-MS2)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:41
Source: CD04266-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
819
2.00
ug/L
400 425 99 75-125
Matrix Spike Dup (0009014-MSD1)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:45
Source: CD03415-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
7670
E
2.00
ug/L
400 7400 69 75-125 4
20
QM-07,
QM-16
Matrix Spike Dup (0009014-MSD2)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:49
Source: CD04266-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
806
2.00
ug/L
400 425 95 75-125 2
20
Post Spike (0009014-PSI)
Prepared: 03/09/2020 09:45 Analyzed: 03/13/2020 03:54
Source: CD03415-01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
3800
E
1.00
ug/L
200 3700 52 75-125
QM-08,
QM-16
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 10

(� �Eo
www.encolabs.com
FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based
on acceptable LCS recovery.
QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test).
QM-16 Matrix spike recovery could not be calculated due to high concentration of analyte in source sample.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 of 10

E
D
V
N
•V
D
V
3
(1)
U,
016
O
Q m
s
0
J
a � u
ZJ
m LL �
O
F W
cc
Lu
U)
z
O
U
LJ
r
LU O
2 t N
z��
Occ
m r
N
LL 0
7 (.i °
� a
Z ry m 0
wl ? 6
0
u
,6
-0 a
N
N
N
L N h L
C
m I Uj L U
(
D
LU o
ir
Y
E
z �
N
N
m
ID
9
�
�
Q
U
a
iA
g
5
U
v
¢
ffi
c
a
2
m
c
IL
m
�
O
U
OH
x
x
Uz11I uS'0S
x
x
J
O �
C
a
° o
~ U
v J
n.
m
0
to
c�
J
LLLO
N
G
�
a
U
E r
m
7
8
rn
I ry V
d
m
U
aL
a
IZ
Q7
N -
m
~
�
U
Go
�
CD
C"3
U
~
v
o
C:
N
m
L
Z
0d
m
ULa
O
u
lL
T
m
S
S
D
¢
E
N
CV
o
N
7F
I
I
I
I
m
r1
a
a
I
C`0
/
M
/
m
V
co
,
E
E
E
ocnoMo
d ro
L)
� U
n Q
o X
a
c
U
C'
3
3
0
v
d
m
Sr �•
m
'v
Q
2
cr
E
E
E
R
N
m
m
m
°
- l
v
c
�
m
—A—
�
r..
1
u
❑ C
C7—
a b
m �3
m
m
t
vPL
¢ .�
LL
� O7
ie
u
E Page 9 of 1
m

Sample Preservation Verification
ENCO Cary
ENCO
Work Order: CD03419
Client: Golder Associates, Inc. (G0007)
Project: Hanes Mill LF- Upgradient Wells
Project #: 19117535,405
Logged In: 06-Mar-20 14:08 ! Logged By: Rachel Ann Yonis f
Preservation Check Performed By: W - Date/Time:_�� 1��ZZ�
CD03419-01
Cont
Type
Pres (pH)
Requirement
pH Checked /
In Control
pH Adjusted Date/Time
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
42
Y/ N/ •NA
Y N I NA
CD03419-02
Cont
Type
Pres (pH)
pH Checked i
pH Adjusted Date/Tirne
Reagent Used/Comments
Requirement
In Contro3
Adjusted
A
250mLP+HNO3
<2
Y !1 N / NA
Y /� N ,I/ NA
Rea ent Name ID
1
2
pH Strip ID:
PH Strips COA0898
Rea ent Name ID
3
4
Reacient Name ID
5
6
C:lelmntlPrii..ivY�u_r- reservation Check, rpt IPage 10 of 10 1

)*, ENCO Laboratories
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, June 1, 2020
Golder Associates, Inc. (G0007)
Attn: Dusty Reedy
5B Oak Branch Drive
Greensboro, NC 27407
RE: Laboratory Results for
Project Number: 19117535.401, Project Name/Desc: Hanes Mill LF- Closed Unlined MNA
ENCO Workorder(s): CD04050
Dear Dusty Reedy,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Wednesday, March 4, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Daniel B. Mays
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 11

(��Eo
www.encolabs.com
SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: 3402-OW3 Lab ID: CD04050-01 Sampled: 03/03/20 10:40 Received: 03/04/20 13:20
Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s)
EPA 6010D EPA 3005A 08/30/20
03/05/20 13:56 03/11/20 14:10
Client ID: 3402-OW3 Lab ID: CD04050-01RE1 Sampled: 03/03/20 10:40 Received: 03/04/20 13:20
Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s)
EPA 6020B EPA 3005A 08/30/20
03/09/20 09:37 05/12/20 13:07
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 11

(��Eo
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: 3402-OW3
Lab ID:
CD04050-01
Anal a
Results
Flaa MDL
Q
Units
Method Notes
Calcium - Total
39200
39.0
100
ug/L
EPA 6010D
Iron - Total
23600
22.0
50.0
ug/L
EPA 6010D
Magnesium - Total
28500
29.0
100
ug/L
EPA 6010D
Potassium - Total
10100
150
500
ug/L
EPA 6010D
Sodium - Total
86400 400
500
ug/L EPA 6010D
Client ID: 3402-OW3
Lab ID:
CD04050-01RE1
Anal a
Results Flaa MDL
Q
Units Method Notes
Manganese - Total
14400 D 20.0
40.0
ug/L EPA 6020B
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 11

(��Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-OW3 Lab Sample ID:CD04050-01 Received: 03/04/20 13:20
Matrix: Ground Water Sampled:03/03/20 10:40 Work Order: CD04050
Project: Hanes Mill LF- Closed Unlined MNA Sampled By: Erik Vasko
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results Flag
Units
DF
MDL
P L
Batch
Method
Analyzed
_By Notes
Calcium [7440-70-2]^
39200
ug/L
1
39.0
100
0005037
EPA 6010D
03/11/20 14:10
]DH
Iron [7439-89-6]^
23600
ug/L
1
22.0
50.0
0005037
EPA 6010D
03/11/20 14:10
]DH
Magnesium [7439-95-4]^
28500
ug/L
1
29.0
100
0005037
EPA 6010D
03/11/20 14:10
]DH
Manganese [7439-96-5]^
14400 D
ug/L
40
20.0
40.0
OE04025
EPA 6020B
05/12/20 13:07
RLF
Potassium [7440-09-7]^
10100
ug/L
1
150
500
0005037
EPA 6010D
03/11/20 14:10
]DH
Sodium [7440-23-5]^
86400
ug/L
1
400
500
0005037
EPA 6010D
03/11/20 14:10
]DH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 11

(��Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO5O37 - EPA 3OO5A
Blank (0005037-BLKI)
Prepared: 03/05/2020 13:56 Analyzed: 03/11/2020 12:20
Spike Source %REC RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
Blank (0005037-BLK2)
Prepared: 03/05/2020 13:56 Analyzed: 03/11/2020 12:24
Spike Source %REC RPD
Analvte
Result
Flao
POL
Units
Level Result %REC Limits RPD Limit Notes
Calcium
39.0
U
100
ug/L
Iron
22.0
U
50.0
ug/L
Magnesium
29.0
U
100
ug/L
Potassium
150
U
500
ug/L
Sodium
400
U
500
ug/L
LCS (0005037-BS1)
Prepared: 03/05/2020 13:56 Analyzed: 03/11/2020 12:31
Spike
Source
%REC
RPD
Analvte
Result Flaq
Q
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
1850
100
ug/L
2000
93 80-120
Iron
897
50.0
ug/L
1000
90 80-120
Magnesium
1900
100
ug/L
2000
95 80-120
Potassium
9500
500
ug/L
10000
95 80-120
Sodium
9420
500
ug/L
10000
94 80-120
Matrix Spike (0005037-MS1)
Prepared:
03/05/2020
13:56 Analyzed: 03/11/2020 12:34
Source: CD02316-06
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
59500
100
ug/L
2000
60100
NR 75-125
QM-07
Iron
3240
50.0
ug/L
1000
2670
57 75-125
QM-07
Magnesium
19000
100
ug/L
2000
17500
72 75-125
QM-07
Potassium
11000
500
ug/L
10000
2280
87 75-125
Sodium
19600
500
ug/L
10000
11200
85 75-125
Matrix Spike Dup (0005037-MSD1)
Prepared:
03/05/2020
13:56 Analyzed: 03/11/2020 12:37
Source: CD02316-06
Spike
Source
%REC
RPD
Analvte
Result Flao
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Calcium
63600
100
ug/L
2000
60100
177 75-125 7
20
QM-07
Iron
3530
50.0
ug/L
1000
2670
87 75-125 9
20
Magnesium
19500
100
ug/L
2000
17500
101 75-125 3
20
Potassium
11500
500
ug/L
10000
2280
92 75-125 4
20
Sodium
20600
500
ug/L
10000
11200
94 75-125 5
20
Post Spike (0005037-PS1)
Prepared:
03/05/2020
13:56 Analyzed: 03/11/2020 12:40
Source: CD02316-06
Spike
Source %REC
RPD
Analvte Result Flaq Q Units
Level
Result %REC Limits
RPD Limit Notes
Calcium 61.6 0.100 mg/L
2.00
60.1 77 80-120
QM-08
Iron 3.54 0.0500 mg/L
1.00
2.67 87 80-120
FINAL This report relates only to the sample as received by the
laboratory, and
may only be reproduced in full.
Page 6 of 11

www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OCO5O37 - EPA 3OO5A - Continued
Post Spike (0005037-PSI) Continued Prepared: 03/05/2020 13:56 Analyzed: 03/11/2020 12:40
Source: CD02316-06
Spike Source %REC RPD
Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes
Magnesium 19.2 0.100 mg/L 2.00 17.5 86 80-120
Potassium 11.9 0.500 mg/L 10.0 2.28 96 80-120
Sodium 20.6 0.500 mg/L 10.0 11.2 95 80-120
Batch OCO9O13 - EPA 3OO5A
Blank (0009013-BLKI) Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:16
Spike Source %REC RPD
Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes
Manganese 0.500 U 1.00 ug/L
LCS (0009013-BS1) Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:21
Spike Source %REC
RPD
Analvte
Result
Flaq
Q
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
197
1.00
ug/L
200 99 80-120
Matrix Spike (0009013-MS1)
Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:25
Source: CD03413-05
Spike Source %REC
RPD
Analvte
Result
Flao
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
387
2.00
ug/L
400 3.02 96 75-125
Matrix Spike Dup (0009013-MSD1)
Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:29
Source: CD03413-05
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
386
2.00
ug/L
400 3.02 96 75-125 0.03
20
Post Spike (0009013-PS1)
Prepared: 03/09/2020 09:37 Analyzed: 03/13/2020 05:33
Source: CD03413-OS
Spike Source %REC
RPD
Analvte
Result
Flaq
Q
Units
Level Result %REC Limits RPD
Limit
Notes
Manganese
214
1.00
ug/L
200 1.51 106 75-125
Batch OEO4O25 - EPA 3OO5A
Blank (OE04025-BLK3) Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 11:47
Spike Source %REC RPD
Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes
Manganese 0.500 U 1.00 ug/L
LCS (OE04025-BSI) Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 11:59
Spike
Source
%REC
RPD
Analvte
Result Flaq POL Units Level
Result
%REC Limits RPD
Limit Notes
Manganese
220 1.00 ug/L 200
110 80-120
Matrix Spike (OE04025-MS1)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 12:03
Source: CD03415-01RE1
Spike
Source
%REC
RPD
Analvte
Result Flaq Q Units Level
Result
%REC Limits RPD
Limit Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 11

(��Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OEO4O25 - EPA 3OO5A - Continued
Matrix Spike (OE04025-MS3) Continued
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 12:03
Source: CD03415-01RE1
Spike
Source
%REC
RPD
Analvte Result
Flaq
POL
Units
Level
Result
%REC Limits RPD
Limit
Notes
Manganese 4660
E
1.00
ug/L
200
9070
NR 75-125
QM-07,
QM-16
Matrix Spike Dup (OE04025-MSD3)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 12:07
Source: CD03415-01RE1
Spike
Source
%REC
RPD
Analvte Result
Flaq
Q
Units
Level
Result
%REC Limits RPD
Limit
Notes
Manganese 4220
E
1.00
ug/L
200
9070
NR 75-125 10
20
QM-07,
QM-16
Post Spike (OE04025-PS3)
Prepared: 05/04/2020 13:11 Analyzed: 05/12/2020 12:12
Source: CD03415-01RE1
Spike
Source
%REC
RPD
Analvte Result
Flaq
Q
Units
Level
Result
%REC Limits RPD
Limit
Notes
Manganese 4250
E
1.00
ug/L
200
9070
NR 75-125
QM-08,
QM-16
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 1 1

(��Eo
www.encolabs.com
FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based
on acceptable LCS recovery.
QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test).
QM-16 Matrix spike recovery could not be calculated due to high concentration of analyte in source sample.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 of 11

o
3
a_
N
J
Cl
�
� a
m
Tq
4—
8
m
a
m
C.
w
m
m
m
'
m
b
o
a
0
M
ow 0
B
N 3
J_
a
r'
a
a
� C
c0i �
tD D
w
C*' �
m
v
w
o
c
m
a1 m
ro
n
-
CDcr
r
(D
m
n
N
� a
n
n
n
tli
0
4 N
'D
a)N
ii
A.
I,.
0
(D
O
d
m
p
=N
m
g
Q
�V
v
�
m
CD-
CD
asa
o
� ET
a N
N
o n
m m
r)
m
N z
b
f'-'
LA,
n
S
Q
Ti
s
Q
g
Ci
a
j
PL
c
a�
A
m =
m
v� m'
x
x
X
X
x
x
82600 Appvndlx 1,826M
o
EAended,826W SIM ID
v_
x
K
}�
x
}{
AgARB*,BQ,Cd,Cn,C.,Cu,Ni,Pb,$p,$e,
0
SASn,TI,V,Zn
n
x
x
X
x
X
X
Chloride 300,Nk to as N 353.2
v
ado
�� n
x
X
X
x
x
x
Hg
a
�zs
x
x
x
x
x
x
NOX 353.2
w
a N.
�Q
0
A
�a
x
x
x
x
x
x
Sulfate 300
I'FTOC
W
b
x
X
x
x
x
SM531OB
I
�
p C
Y
[!3
W
al
O
w m
n ..
m
c CD
t h
o
n
3
c)
x
�
3
ro
p
N
y
CD�
o
`" 3CD w
1
CL
^I�
Page 10 of 11

Sample Preservation Verification
ENCO Cary
Work Order: CD04050 Project: Hanes Mill LF- Closed Unlined MNA
Client: Golder Associates, Inc. (00007) Project # 19117535.401
Logged In: 04-Mar-20 14:32 Logged By: John C King
Preservation Check Performed By: DatelTime:
C D04050-01
Conn
Type
Pres (pH)
pFl Checked /
pH Adjusted Dateff`ime
Reagent Used/Comments
Requirement
In Control
Adjusted
B
250mLP+H2SO4
<2
Y,-/ N / NA
Y / / NA
C
254mLP+HNO3
<2
d ! N / NA
Y /, !' / NA
CD04050-02
Cont
Type
Pres (pH)
pH Checked /
In Control
pH Adjusted Datef ime
Adjusted
Reagent Used/Comments
B
250mLP+H2304
—Requirement
<2
l N / NA
Y / / NA
C
250mLP+HNO3
<2
Y / N / NA
Y / ! NA
Reagent Name ID
1
2
pH Strip ID:{»-� O _
Reaclent Name ID
3
4
Rea ent Name ID
5
6
C;IELMNTIPrintlwko_Preservation Check. rpt Page 11 of 11
}

ENCO Laboratones
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, June 1, 2020
Golder Associates, Inc. (G0007)
Attn: Dusty Reedy
5B Oak Branch Drive
Greensboro, NC 27407
RE: Laboratory Results for
Project Number: 19117535.405, Project Name/Desc: Hanes Mill LF- Upgradient Wells
ENCO Workorder(s): CD07885
Dear Dusty Reedy,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Friday, May 15, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Daniel B. Mays
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 3

PROJECT NARRATIVE
Date:
1 June 2020
Client:
Golder Associates, Inc. (G0007)
Project:
Hanes Mill LF- Upgradient Wells
Lab ID:
CD07885
Overview
(� �Eo
www.encolabs.com
Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods
referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in
the QC Remarks section below.
Quality Control Samples
No Comments
Selenium exceeded upper control limit for the continuing calibration verification sample.
No Comments
Other Comments
The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any
exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of
the report.
Released By:
Environmental Conservation Laboratories, Inc.
Daniel Mays
Project Manager
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 13

(� �Eo
www.encolabs.com
SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: 3402-MW23
Lab ID: CD07885-01
Sampled: 05/12/20 15:30
Received: 05/15/20 13:15
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
11/08/20
05/22/20 11:14
05/27/20 13:26
EPA 6020E
EPA 3005A
11/08/20
05/26/20 12:13
05/29/20 15:48
EPA 7470A
EPA 7470A
06/09/20
05/20/20 12:50
05/21/20 16:59
Client ID: 3402-MW24
Lab ID: CD07885-02
Sampled: 05/12/20 16:40
Received: 05/15/20 13:15
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
11/08/20
05/22/20 11:14
05/27/20 13:28
EPA 6020E
EPA 3005A
11/08/20
05/26/20 12:13
05/29/20 15:53
EPA 7470A
EPA 7470A
06/09/20
05/20/20 12:50
05/21/20 17:02
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 13

(� �Eo
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: 3402-MW23
Lab ID:
CD07885-01
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Barium - Total
85.2
1.10
10.0
ug/L
EPA 6010D
Chromium - Total
4.97
J
1.40
10.0
ug/L
EPA 6010D
Zinc - Total
13.3
4.40
10.0
ug/L
EPA 6010D
Client ID: 3402-MW24
Lab ID:
CD07885-02
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Barium - Total
181
1.10
10.0
ug/L
EPA 6010D
Chromium - Total
10.1
1.40
10.0
ug/L
EPA 6010D
Copper - Total
1.96
J
1.60
10.0
ug/L
EPA 6010D
Vanadium - Total
4.31
J
1.40
10.0
ug/L
EPA 6010D
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 3

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-MW23 Lab Sample ID:CDO7885-01 Received: 05/15/20 13:15
Matrix: Ground Water Sampled:05/12/20 15:30 Work Order: CD07885
Project: Hanes Mill LF- Upgradient Wells Sampled By: Nicolas Tejada
Metals by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
Ay Notes
Mercury [7439-97-6]^
0.150
U
ug/L
1
0.150
0.200
OE20030
EPA 7470A
05/21/20 16:59
KAH
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
Ay Notes
Antimony[7440-36-O]^
0.740
U
ug/L
2
0.740
2.00
OE26023
EPA 6020B
05/29/20 15:48
RLF
Arsenic[7440-38-2]^
7.60
U
ug/L
1
7.60
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Barium [7440-39-3]^
85.2
ug/L
1
1.10
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Beryllium [7440-41-7]1
0.160
U
ug/L
1
0.160
1.00
OE22017
EPA 6010D
05/27/20 13:26
JDH
Cadmium [7440-43-9]^
0.360
U
ug/L
1
0.360
1.00
OE22017
EPA 6010D
05/27/20 13:26
JDH
Chromium [7440-47-3]^
4.97
J
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Cobalt [7440-48-4]^
1.40
U
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Copper[7440-50-8]^
1.60
U
ug/L
1
1.60
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Lead [7439-92-1]^
3.10
U
ug/L
1
3.10
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Nickel[7440-02-O]^
2.20
U
ug/L
1
2.20
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Selenium [7782-49-2]^
6.20
U
ug/L
1
6.20
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Silver [7440-22-4]^
1.90
U
ug/L
1
1.90
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Thallium [7440-28-O]^
0.220
U
ug/L
2
0.220
2.00
OE26023
EPA 6020B
05/29/20 15:48
RLF
Tin[7440-31-5]^
2.90
U
ug/L
1
2.90
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Vanadium [7440-62-2]1
1.40
U
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Zinc[7440-66-6]^
13.3
ug/L
1
4.40
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of 13

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-MW24 Lab Sample ID:CDO7885-02 Received: 05/15/20 13:15
Matrix: Ground Water Sampled:05/12/20 16:40 Work Order: CD07885
Project: Hanes Mill LF- Upgradient Wells Sampled By: Nicolas Tejada
Metals by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
Ay Notes
Mercury [7439-97-6]^
0.150
U
ug/L
1
0.150
0.200
OE20030
EPA 7470A
05/21/20 17:02
KAH
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
Ay Notes
Antimony[7440-36-O]^
0.740
U
ug/L
2
0.740
2.00
OE26023
EPA 6020B
05/29/20 15:53
RLF
Arsenic[7440-38-2]^
7.60
U
ug/L
1
7.60
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Barium [7440-39-3]^
181
ug/L
1
1.10
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Beryllium [7440-41-7]1
0.160
U
ug/L
1
0.160
1.00
OE22017
EPA 6010D
05/27/20 13:28
JDH
Cadmium [7440-43-9]^
0.360
U
ug/L
1
0.360
1.00
OE22017
EPA 6010D
05/27/20 13:28
JDH
Chromium [7440-47-3]^
10.1
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Cobalt [7440-48-4]^
1.40
U
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Copper[7440-50-8]^
1.96
J
ug/L
1
1.60
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Lead [7439-92-1]^
3.10
U
ug/L
1
3.10
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Nickel[7440-02-O]^
2.20
U
ug/L
1
2.20
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Selenium [7782-49-2]^
6.20
U
ug/L
1
6.20
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Silver [7440-22-4]^
1.90
U
ug/L
1
1.90
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Thallium [7440-28-0]^
0.220
U
ug/L
2
0.220
2.00
OE26023
EPA 6020B
05/29/20 15:53
RLF
Tin[7440-31-5]^
2.90
U
ug/L
1
2.90
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Vanadium [7440-62-2]^
4.31
J
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Zinc [7440-66-6]^
4.40
U
ug/L
1
4.40
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 of 13

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals by EPA 6000/7000 Series Methods - Quality Control
Batch OE2003O - EPA 747OA
Blank (OE20030-BLK1) Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:28
Spike Source O/oREC RPD
Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes
Mercury 0.150 U 0.200 ug/L
LCS (OE20030-BS1) Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:31
Spike
Source
O/oREC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
O/oREC
Limits RPD
Limit
Notes
Mercury
5.06
0.200
ug/L
5.00
101
80-120
Matrix Spike (OE20030-MS1)
Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:41
Source: CD07401-03
Spike
Source
O/oREC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
O/oREC
Limits RPD
Limit
Notes
Mercury
4.99
0.200
ug/L
5.00
0.150 U
100
75-125
Matrix Spike Dup (OE20030-MSDS)
Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:43
Source: CD07401-03
Spike
Source
O/oREC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
O/oREC
Limits RPD
Limit
Notes
Mercury
5.16
0.200
ug/L
5.00
0.150 U
103
75-125 3
25
Post Spike (OE20030-PS1)
Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:46
Source: CD07401-03
Spike
Source
O/oREC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
O/oREC
Limits RPD
Limit
Notes
Mercury
5.40
0.200
ug/L
5.00
0.0310
107
75-125
Metals (total recoverable) by EPA 6000/7000
Series Methods -
Quality Control
Batch OE22O17 - EPA 3OO5A
Blank (OE22017-BLK3)
Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 11:55
Spike Source O/oREC RPD
Analvte
Result
Flaq
POL
Units
Level Result O/oREC Limits RPD Limit Notes
Arsenic
7.60
U
10.0
ug/L
Barium
1.10
U
10.0
ug/L
Beryllium
0.160
U
1.00
ug/L
Cadmium
0.360
U
1.00
ug/L
Chromium
1.40
U
10.0
ug/L
Cobalt
1.40
U
10.0
ug/L
Copper
1.60
U
10.0
ug/L
Lead
3.10
U
10.0
ug/L
Nickel
2.20
U
10.0
ug/L
Selenium
6.20
U
10.0
ug/L
Silver
1.90
U
10.0
ug/L
Tin
2.90
U
10.0
ug/L
Vanadium
1.40
U
10.0
ug/L
Zinc
4.40
U
10.0
ug/L
LCS (OE22017-BSI)
Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 12:00
Spike Source O/oREC RPD
Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes
Arsenic 215 10.0 ug/L 200 107 80-120
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 Of 13

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OE22O17 - EPA 3OO5A - Continued
LCS (OE22017-BSI) Continued Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 12:00
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Barium
211
10.0
ug/L
200
106
80-120
Beryllium
20.7
1.00
ug/L
20.0
103
80-120
Cadmium
20.9
1.00
ug/L
20.0
104
80-120
Chromium
209
10.0
ug/L
200
104
80-120
Cobalt
218
10.0
ug/L
200
109
80-120
Copper
206
10.0
ug/L
200
103
80-120
Lead
215
10.0
ug/L
200
108
80-120
Nickel
208
10.0
ug/L
200
104
80-120
Selenium
222
10.0
ug/L
200
111
80-120
Silver
207
10.0
ug/L
200
104
80-120
Tin
211
10.0
ug/L
200
105
80-120
Vanadium
207
10.0
ug/L
200
104
80-120
Zinc
210
10.0
ug/L
200
105
80-120
Matrix Spike (OE22017-MS3)
Prepared:
05/22/2020
11:14 Analyzed: 05/27/2020 12:44
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Arsenic
202
10.0
ug/L
200
7.60 U
101
75-125
Barium
233
10.0
ug/L
200
25.4
104
75-125
Beryllium
20.7
1.00
ug/L
20.0
0.160 U
104
75-125
Cadmium
20.1
1.00
ug/L
20.0
0.360 U
101
75-125
Chromium
208
10.0
ug/L
200
1.40 U
104
75-125
Cobalt
221
10.0
ug/L
200
6.16
107
75-125
Copper
212
10.0
ug/L
200
2.27
105
75-125
Lead
210
10.0
ug/L
200
3.10 U
105
75-125
Nickel
214
10.0
ug/L
200
9.12
103
75-125
Selenium
208
10.0
ug/L
200
6.20 U
104
75-125
Silver
211
10.0
ug/L
200
1.90 U
106
75-125
Tin
205
10.0
ug/L
200
2.90 U
103
75-125
Vanadium
208
10.0
ug/L
200
1.40 U
104
75-125
Zinc
219
10.0
ug/L
200
13.7
103
75-125
Matrix Spike Dup (OE22017-MSD1)
Prepared:
05/22/2020
11:14 Analyzed: 05/27/2020 12:47
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC
Limits
RPD
Limit Notes
Arsenic
193
10.0
ug/L
200
7.60 U
96
75-125
5
20
Barium
229
10.0
ug/L
200
25.4
102
75-125
2
20
Beryllium
20.3
1.00
ug/L
20.0
0.160 U
102
75-125
2
20
Cadmium
19.8
1.00
ug/L
20.0
0.360 U
99
75-125
1
20
Chromium
205
10.0
ug/L
200
1.40 U
102
75-125
2
20
Cobalt
217
10.0
ug/L
200
6.16
105
75-125
2
20
Copper
209
10.0
ug/L
200
2.27
104
75-125
1
20
Lead
206
10.0
ug/L
200
3.10 U
103
75-125
2
20
Nickel
211
10.0
ug/L
200
9.12
101
75-125
2
20
Selenium
190
10.0
ug/L
200
6.20 U
95
75-125
9
20
Silver
208
10.0
ug/L
200
1.90 U
104
75-125
2
20
Tin
200
10.0
ug/L
200
2.90 U
100
75-125
3
20
Vanadium
205
10.0
ug/L
200
1.40 U
102
75-125
2
20
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 13

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OE22O17 - EPA 3OO5A - Continued
Matrix Spike Dup (OE22017-MSDS) Continued
Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 12:47
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Zinc
215
10.0
ug/L
200
13.7
100
75-125 2
20
Post Spike (OE22017-PS1)
Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 12:49
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Arsenic
0.202
0.0100
mg/L
0.200
-0.0156
101
80-120
Barium
0.245
0.0100
mg/L
0.200
0.0254
110
80-120
Beryllium
0.0210
0.00100
mg/L
0.0200
-0.000169
105
80-120
Cadmium
0.0214
0.00100
mg/L
0.0200
-0.000641
107
80-120
Chromium
0.213
0.0100
mg/L
0.200
0.00108
106
80-120
Cobalt
0.222
0.0100
mg/L
0.200
0.00616
108
80-120
Copper
0.218
0.0100
mg/L
0.200
0.00227
108
80-120
Lead
0.213
0.0100
mg/L
0.200
-0.000525
106
80-120
Nickel
0.227
0.0100
mg/L
0.200
0.00912
109
80-120
Selenium
0.209
0.0100
mg/L
0.200
-0.0158
104
80-120
Silver
0.216
0.0100
mg/L
0.200
-0.00102
108
80-120
Tin
0.205
0.0100
mg/L
0.200
-0.00606
102
80-120
Vanadium
0.212
0.0100
mg/L
0.200
0.000507
106
80-120
Zinc
0.237
0.0100
mg/L
0.200
0.0137
112
80-120
Batch OE26O23 - EPA 3OO5A
Blank (OE26023-BLK1)
Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:38
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Antimony
0.370
U
1.00
ug/L
Selenium
0.910
U
1.00
ug/L
Thallium
0.110
U
1.00
ug/L
LCS (OE26023-BS1)
Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:42
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Antimony
20.4
1.00
ug/L
20.0
102
80-120
Selenium
20.5
1.00
ug/L
20.0
102
80-120
Thallium
20.2
1.00
ug/L
20.0
101
80-120
Matrix Spike (OE26023-MS3)
Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:46
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Antimony
41.2
2.00
ug/L
40.0
0.740 U
103
75-125
Selenium
41.1
2.00
ug/L
40.0
1.82 U
103
75-125
Thallium
39.4
2.00
ug/L
40.0
0.220 U
99
75-125
Matrix Spike Dup (OE26023-MSD1)
Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:50
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Antimony
40.9
2.00
ug/L
40.0
0.740 U
102
75-125 0.6
20
Selenium
42.3
2.00
ug/L
40.0
1.82 U
106
75-125 3
20
FINAL This
report relates
only to the sample as received by the
laboratory, and
may only be reproduced
in
full.
Page 9 Of 13

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OE26O23 - EPA 3OO5A - Continued
Matrix Spike Dup (OE26023-MSDS) Continued Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:50
Source: CD07401-03
Spike Source %REC RPD
Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes
Thallium 39.7 2.00 ug/L 40.0 0.220 U 99 75-125 0.6 20
Post Spike (OE26023-PS1) Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:55
Source: CD07401-03
Spike
Source
%REC RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC
Limits RPD Limit Notes
Antimony
22.4
1.00
ug/L
20.0
0.203
111
75-125
Selenium
21.9
1.00
ug/L
20.0
0.167
109
75-125
Thallium
21.6
1.00
ug/L
20.0
0.0149
108
75-125
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 13

(� �Eo
www.encolabs.com
FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 13

3
a
�
�
v
N
F
^l
n
O
Cl
-t
m o.
p
U
C
G
n
3
v
,n
n
o
� x
n �
� o
6i m
� O
�o
Lr
m
3
0
s,
(�
-NJ
r
Le
IRA
� j J
Fr
v
a A m�
u�
m
a
ro
ro
'a
n
N
I INS
o '0
f a
Cn
r
cp
O
o
m
wm m
w
rn
x
CD
A
CD
m
Q
V
m
CD
w N 3
CL
r
Page 12 of 13

Sample Preservation Verification
ENCO Cary
Work Order: CD07885
Client: -Golder Associates, Inc. (00007)
Logged In15-May-20 15:32
Project: Hanes Mill LF- Upgradient Wells
Project #: 19117535.405
Logged By: John C King
Preservation Check Performed By: Date/Time: -/S G
Mao
CD07885-01
Cunt
Type
Pres (pH)
pH Checked /
pH Adjusted DatefTime
Reagent Used/Comments
Requirement
In Control
Adjusted
A
250mLP+HNO3
<2
Y I N! NA
Y /�1 NA
CD07885-02
Cont
Type
Pres (pH)
Requirement
pH Checked !
In Control
pH Adjusted Date/Time
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
1'/I N I NA
Y &I 1 NA
Rea ent Name ID
1
2
pH Strip ID:
Reagent Name ID
3
4
Rea ent Name ID
5
6
C aELMNT1Printlwko_PreservationCheck. rpt
Page 13 of 13

ENCO Laboratones
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, June 1, 2020
Golder Associates, Inc. (G0007)
Attn: Dusty Reedy
5B Oak Branch Drive
Greensboro, NC 27407
RE: Laboratory Results for
Project Number: 19117535.405, Project Name/Desc: Hanes Mill LF- Upgradient Wells
ENCO Workorder(s): CD07885
Dear Dusty Reedy,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Friday, May 15, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Daniel B. Mays
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 3

PROJECT NARRATIVE
Date:
1 June 2020
Client:
Golder Associates, Inc. (G0007)
Project:
Hanes Mill LF- Upgradient Wells
Lab ID:
CD07885
Overview
(� �Eo
www.encolabs.com
Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods
referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in
the QC Remarks section below.
Quality Control Samples
No Comments
Selenium exceeded upper control limit for the continuing calibration verification sample.
No Comments
Other Comments
The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any
exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of
the report.
Released By:
Environmental Conservation Laboratories, Inc.
Daniel Mays
Project Manager
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 13

(� �Eo
www.encolabs.com
SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: 3402-MW23
Lab ID: CD07885-01
Sampled: 05/12/20 15:30
Received: 05/15/20 13:15
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
11/08/20
05/22/20 11:14
05/27/20 13:26
EPA 6020E
EPA 3005A
11/08/20
05/26/20 12:13
05/29/20 15:48
EPA 7470A
EPA 7470A
06/09/20
05/20/20 12:50
05/21/20 16:59
Client ID: 3402-MW24
Lab ID: CD07885-02
Sampled: 05/12/20 16:40
Received: 05/15/20 13:15
Parameter
Preparation
Hold Date/Time(s)
Prep Date/Time(s)
Analysis Date/Time(s)
EPA 6010D
EPA 3005A
11/08/20
05/22/20 11:14
05/27/20 13:28
EPA 6020E
EPA 3005A
11/08/20
05/26/20 12:13
05/29/20 15:53
EPA 7470A
EPA 7470A
06/09/20
05/20/20 12:50
05/21/20 17:02
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 13

(� �Eo
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: 3402-MW23
Lab ID:
CD07885-01
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Barium - Total
85.2
1.10
10.0
ug/L
EPA 6010D
Chromium - Total
4.97
J
1.40
10.0
ug/L
EPA 6010D
Zinc - Total
13.3
4.40
10.0
ug/L
EPA 6010D
Client ID: 3402-MW24
Lab ID:
CD07885-02
Analvte
Results
Flag
MDL
PQL
Units
Method Notes
Barium - Total
181
1.10
10.0
ug/L
EPA 6010D
Chromium - Total
10.1
1.40
10.0
ug/L
EPA 6010D
Copper - Total
1.96
J
1.60
10.0
ug/L
EPA 6010D
Vanadium - Total
4.31
J
1.40
10.0
ug/L
EPA 6010D
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 3

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-MW23 Lab Sample ID:CDO7885-01 Received: 05/15/20 13:15
Matrix: Ground Water Sampled:05/12/20 15:30 Work Order: CD07885
Project: Hanes Mill LF- Upgradient Wells Sampled By: Nicolas Tejada
Metals by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
Ay Notes
Mercury [7439-97-6]^
0.150
U
ug/L
1
0.150
0.200
OE20030
EPA 7470A
05/21/20 16:59
KAH
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
Ay Notes
Antimony[7440-36-O]^
0.740
U
ug/L
2
0.740
2.00
OE26023
EPA 6020B
05/29/20 15:48
RLF
Arsenic[7440-38-2]^
7.60
U
ug/L
1
7.60
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Barium [7440-39-3]^
85.2
ug/L
1
1.10
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Beryllium [7440-41-7]1
0.160
U
ug/L
1
0.160
1.00
OE22017
EPA 6010D
05/27/20 13:26
JDH
Cadmium [7440-43-9]^
0.360
U
ug/L
1
0.360
1.00
OE22017
EPA 6010D
05/27/20 13:26
JDH
Chromium [7440-47-3]^
4.97
J
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Cobalt [7440-48-4]^
1.40
U
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Copper[7440-50-8]^
1.60
U
ug/L
1
1.60
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Lead [7439-92-1]^
3.10
U
ug/L
1
3.10
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Nickel[7440-02-O]^
2.20
U
ug/L
1
2.20
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Selenium [7782-49-2]^
6.20
U
ug/L
1
6.20
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Silver [7440-22-4]^
1.90
U
ug/L
1
1.90
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Thallium [7440-28-O]^
0.220
U
ug/L
2
0.220
2.00
OE26023
EPA 6020B
05/29/20 15:48
RLF
Tin[7440-31-5]^
2.90
U
ug/L
1
2.90
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Vanadium [7440-62-2]1
1.40
U
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
Zinc[7440-66-6]^
13.3
ug/L
1
4.40
10.0
OE22017
EPA 6010D
05/27/20 13:26
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of 13

(� �Eo
www.encolabs.com
ANALYTICAL RESULTS
Description: 3402-MW24 Lab Sample ID:CDO7885-02 Received: 05/15/20 13:15
Matrix: Ground Water Sampled:05/12/20 16:40 Work Order: CD07885
Project: Hanes Mill LF- Upgradient Wells Sampled By: Nicolas Tejada
Metals by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
Ay Notes
Mercury [7439-97-6]^
0.150
U
ug/L
1
0.150
0.200
OE20030
EPA 7470A
05/21/20 17:02
KAH
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Analyzed
Ay Notes
Antimony[7440-36-O]^
0.740
U
ug/L
2
0.740
2.00
OE26023
EPA 6020B
05/29/20 15:53
RLF
Arsenic[7440-38-2]^
7.60
U
ug/L
1
7.60
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Barium [7440-39-3]^
181
ug/L
1
1.10
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Beryllium [7440-41-7]1
0.160
U
ug/L
1
0.160
1.00
OE22017
EPA 6010D
05/27/20 13:28
JDH
Cadmium [7440-43-9]^
0.360
U
ug/L
1
0.360
1.00
OE22017
EPA 6010D
05/27/20 13:28
JDH
Chromium [7440-47-3]^
10.1
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Cobalt [7440-48-4]^
1.40
U
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Copper[7440-50-8]^
1.96
J
ug/L
1
1.60
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Lead [7439-92-1]^
3.10
U
ug/L
1
3.10
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Nickel[7440-02-O]^
2.20
U
ug/L
1
2.20
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Selenium [7782-49-2]^
6.20
U
ug/L
1
6.20
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Silver [7440-22-4]^
1.90
U
ug/L
1
1.90
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Thallium [7440-28-0]^
0.220
U
ug/L
2
0.220
2.00
OE26023
EPA 6020B
05/29/20 15:53
RLF
Tin[7440-31-5]^
2.90
U
ug/L
1
2.90
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Vanadium [7440-62-2]^
4.31
J
ug/L
1
1.40
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
Zinc [7440-66-6]^
4.40
U
ug/L
1
4.40
10.0
OE22017
EPA 6010D
05/27/20 13:28
JDH
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 of 13

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals by EPA 6000/7000 Series Methods - Quality Control
Batch OE2003O - EPA 747OA
Blank (OE20030-BLK1) Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:28
Spike Source O/oREC RPD
Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes
Mercury 0.150 U 0.200 ug/L
LCS (OE20030-BS1) Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:31
Spike
Source
O/oREC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
O/oREC
Limits RPD
Limit
Notes
Mercury
5.06
0.200
ug/L
5.00
101
80-120
Matrix Spike (OE20030-MS1)
Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:41
Source: CD07401-03
Spike
Source
O/oREC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
O/oREC
Limits RPD
Limit
Notes
Mercury
4.99
0.200
ug/L
5.00
0.150 U
100
75-125
Matrix Spike Dup (OE20030-MSDS)
Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:43
Source: CD07401-03
Spike
Source
O/oREC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
O/oREC
Limits RPD
Limit
Notes
Mercury
5.16
0.200
ug/L
5.00
0.150 U
103
75-125 3
25
Post Spike (OE20030-PS1)
Prepared: 05/20/2020 12:50 Analyzed: 05/21/2020 15:46
Source: CD07401-03
Spike
Source
O/oREC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
O/oREC
Limits RPD
Limit
Notes
Mercury
5.40
0.200
ug/L
5.00
0.0310
107
75-125
Metals (total recoverable) by EPA 6000/7000
Series Methods -
Quality Control
Batch OE22O17 - EPA 3OO5A
Blank (OE22017-BLK3)
Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 11:55
Spike Source O/oREC RPD
Analvte
Result
Flaq
POL
Units
Level Result O/oREC Limits RPD Limit Notes
Arsenic
7.60
U
10.0
ug/L
Barium
1.10
U
10.0
ug/L
Beryllium
0.160
U
1.00
ug/L
Cadmium
0.360
U
1.00
ug/L
Chromium
1.40
U
10.0
ug/L
Cobalt
1.40
U
10.0
ug/L
Copper
1.60
U
10.0
ug/L
Lead
3.10
U
10.0
ug/L
Nickel
2.20
U
10.0
ug/L
Selenium
6.20
U
10.0
ug/L
Silver
1.90
U
10.0
ug/L
Tin
2.90
U
10.0
ug/L
Vanadium
1.40
U
10.0
ug/L
Zinc
4.40
U
10.0
ug/L
LCS (OE22017-BSI)
Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 12:00
Spike Source O/oREC RPD
Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes
Arsenic 215 10.0 ug/L 200 107 80-120
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 Of 13

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OE22O17 - EPA 3OO5A - Continued
LCS (OE22017-BSI) Continued Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 12:00
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Barium
211
10.0
ug/L
200
106
80-120
Beryllium
20.7
1.00
ug/L
20.0
103
80-120
Cadmium
20.9
1.00
ug/L
20.0
104
80-120
Chromium
209
10.0
ug/L
200
104
80-120
Cobalt
218
10.0
ug/L
200
109
80-120
Copper
206
10.0
ug/L
200
103
80-120
Lead
215
10.0
ug/L
200
108
80-120
Nickel
208
10.0
ug/L
200
104
80-120
Selenium
222
10.0
ug/L
200
111
80-120
Silver
207
10.0
ug/L
200
104
80-120
Tin
211
10.0
ug/L
200
105
80-120
Vanadium
207
10.0
ug/L
200
104
80-120
Zinc
210
10.0
ug/L
200
105
80-120
Matrix Spike (OE22017-MS3)
Prepared:
05/22/2020
11:14 Analyzed: 05/27/2020 12:44
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Arsenic
202
10.0
ug/L
200
7.60 U
101
75-125
Barium
233
10.0
ug/L
200
25.4
104
75-125
Beryllium
20.7
1.00
ug/L
20.0
0.160 U
104
75-125
Cadmium
20.1
1.00
ug/L
20.0
0.360 U
101
75-125
Chromium
208
10.0
ug/L
200
1.40 U
104
75-125
Cobalt
221
10.0
ug/L
200
6.16
107
75-125
Copper
212
10.0
ug/L
200
2.27
105
75-125
Lead
210
10.0
ug/L
200
3.10 U
105
75-125
Nickel
214
10.0
ug/L
200
9.12
103
75-125
Selenium
208
10.0
ug/L
200
6.20 U
104
75-125
Silver
211
10.0
ug/L
200
1.90 U
106
75-125
Tin
205
10.0
ug/L
200
2.90 U
103
75-125
Vanadium
208
10.0
ug/L
200
1.40 U
104
75-125
Zinc
219
10.0
ug/L
200
13.7
103
75-125
Matrix Spike Dup (OE22017-MSD1)
Prepared:
05/22/2020
11:14 Analyzed: 05/27/2020 12:47
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC
Limits
RPD
Limit Notes
Arsenic
193
10.0
ug/L
200
7.60 U
96
75-125
5
20
Barium
229
10.0
ug/L
200
25.4
102
75-125
2
20
Beryllium
20.3
1.00
ug/L
20.0
0.160 U
102
75-125
2
20
Cadmium
19.8
1.00
ug/L
20.0
0.360 U
99
75-125
1
20
Chromium
205
10.0
ug/L
200
1.40 U
102
75-125
2
20
Cobalt
217
10.0
ug/L
200
6.16
105
75-125
2
20
Copper
209
10.0
ug/L
200
2.27
104
75-125
1
20
Lead
206
10.0
ug/L
200
3.10 U
103
75-125
2
20
Nickel
211
10.0
ug/L
200
9.12
101
75-125
2
20
Selenium
190
10.0
ug/L
200
6.20 U
95
75-125
9
20
Silver
208
10.0
ug/L
200
1.90 U
104
75-125
2
20
Tin
200
10.0
ug/L
200
2.90 U
100
75-125
3
20
Vanadium
205
10.0
ug/L
200
1.40 U
102
75-125
2
20
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 13

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OE22O17 - EPA 3OO5A - Continued
Matrix Spike Dup (OE22017-MSDS) Continued
Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 12:47
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Zinc
215
10.0
ug/L
200
13.7
100
75-125 2
20
Post Spike (OE22017-PS1)
Prepared: 05/22/2020 11:14 Analyzed: 05/27/2020 12:49
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Arsenic
0.202
0.0100
mg/L
0.200
-0.0156
101
80-120
Barium
0.245
0.0100
mg/L
0.200
0.0254
110
80-120
Beryllium
0.0210
0.00100
mg/L
0.0200
-0.000169
105
80-120
Cadmium
0.0214
0.00100
mg/L
0.0200
-0.000641
107
80-120
Chromium
0.213
0.0100
mg/L
0.200
0.00108
106
80-120
Cobalt
0.222
0.0100
mg/L
0.200
0.00616
108
80-120
Copper
0.218
0.0100
mg/L
0.200
0.00227
108
80-120
Lead
0.213
0.0100
mg/L
0.200
-0.000525
106
80-120
Nickel
0.227
0.0100
mg/L
0.200
0.00912
109
80-120
Selenium
0.209
0.0100
mg/L
0.200
-0.0158
104
80-120
Silver
0.216
0.0100
mg/L
0.200
-0.00102
108
80-120
Tin
0.205
0.0100
mg/L
0.200
-0.00606
102
80-120
Vanadium
0.212
0.0100
mg/L
0.200
0.000507
106
80-120
Zinc
0.237
0.0100
mg/L
0.200
0.0137
112
80-120
Batch OE26O23 - EPA 3OO5A
Blank (OE26023-BLK1)
Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:38
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Antimony
0.370
U
1.00
ug/L
Selenium
0.910
U
1.00
ug/L
Thallium
0.110
U
1.00
ug/L
LCS (OE26023-BS1)
Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:42
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Antimony
20.4
1.00
ug/L
20.0
102
80-120
Selenium
20.5
1.00
ug/L
20.0
102
80-120
Thallium
20.2
1.00
ug/L
20.0
101
80-120
Matrix Spike (OE26023-MS3)
Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:46
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Antimony
41.2
2.00
ug/L
40.0
0.740 U
103
75-125
Selenium
41.1
2.00
ug/L
40.0
1.82 U
103
75-125
Thallium
39.4
2.00
ug/L
40.0
0.220 U
99
75-125
Matrix Spike Dup (OE26023-MSD1)
Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:50
Source: CD07401-03
Spike
Source
%REC
RPD
Analvte
Result
Flaq
POL
Units
Level
Result
%REC
Limits RPD
Limit Notes
Antimony
40.9
2.00
ug/L
40.0
0.740 U
102
75-125 0.6
20
Selenium
42.3
2.00
ug/L
40.0
1.82 U
106
75-125 3
20
FINAL This
report relates
only to the sample as received by the
laboratory, and
may only be reproduced
in
full.
Page 9 Of 13

(� �Eo
www.encolabs.com
QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch OE26O23 - EPA 3OO5A - Continued
Matrix Spike Dup (OE26023-MSDS) Continued Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:50
Source: CD07401-03
Spike Source %REC RPD
Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes
Thallium 39.7 2.00 ug/L 40.0 0.220 U 99 75-125 0.6 20
Post Spike (OE26023-PS1) Prepared: 05/26/2020 12:13 Analyzed: 05/28/2020 15:55
Source: CD07401-03
Spike
Source
%REC RPD
Analvte
Result Flaq
POL
Units
Level
Result
%REC
Limits RPD Limit Notes
Antimony
22.4
1.00
ug/L
20.0
0.203
111
75-125
Selenium
21.9
1.00
ug/L
20.0
0.167
109
75-125
Thallium
21.6
1.00
ug/L
20.0
0.0149
108
75-125
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 13

(� �Eo
www.encolabs.com
FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 13

3
a
�
�
v
N
F
^l
n
O
Cl
-t
m o.
p
U
C
G
n
3
v
,n
n
o
� x
n �
� o
6i m
� O
�o
Lr
m
3
0
s,
(�
-NJ
r
Le
IRA
� j J
Fr
v
a A m�
u�
m
a
ro
ro
'a
n
N
I INS
o '0
f a
Cn
r
cp
O
o
m
wm m
w
rn
x
CD
A
CD
m
Q
V
m
CD
w N 3
CL
r
Page 12 of 13

Sample Preservation Verification
ENCO Cary
Work Order: CD07885
Client: -Golder Associates, Inc. (00007)
Logged In15-May-20 15:32
Project: Hanes Mill LF- Upgradient Wells
Project #: 19117535.405
Logged By: John C King
Preservation Check Performed By: Date/Time: -/S G
Mao
CD07885-01
Cunt
Type
Pres (pH)
pH Checked /
pH Adjusted DatefTime
Reagent Used/Comments
Requirement
In Control
Adjusted
A
250mLP+HNO3
<2
Y I N! NA
Y /�1 NA
CD07885-02
Cont
Type
Pres (pH)
Requirement
pH Checked !
In Control
pH Adjusted Date/Time
Adjusted
Reagent Used/Comments
A
250mLP+HNO3
<2
1'/I N I NA
Y &I 1 NA
Rea ent Name ID
1
2
pH Strip ID:
Reagent Name ID
3
4
Rea ent Name ID
5
6
C aELMNT1Printlwko_PreservationCheck. rpt
Page 13 of 13

GOLDER
Project Name: AGtAczs Hill —,ri►,ti� Iru��
Well ID: Well Diameter: Diameter: 2 inches
Depth to Bottom: _gym G3 feet
Pumping Rate: mUmin.
Equipment: 1� 5
DATE:
GROUNDWATER SAMPLING LOG
Project No./Phasq No.: 1 "1 to-
Sampler(s): _ 141w —N 1tgf4G - -QfN
Initial Depth to Water: q-,c@( feet
Water Column Thickness: feet
System Volume: �14 % mL
Time
pH
(S.U.)
Sp. Cond.
(US/cm)
Turb
(NTU)
Dis OZ
(mg/L)
Temp.
(CC)
ORP
(millivolts)
DTW
(feet)
l(o
.4
11.06.
13
I0.U';
Z,
1 3. g
Z150. 0
5. to
i,640
Lo
! M 4 .
6 46
13 (d
Z 4 4- 4
S %k
c;u
16�F0
I
Comments (weather conditions, color, type of sample, purge -water management, etc.):
Weather: �r yy�ly, to,,;
Begin purging @ Ill
Signature:
QA/QC Sign Off:
1
Date:
Date: ��-Z�

GOLDER
DATE: O -IZ- L;.
GROUNDWATER SAMPLING LOG
Project Name: _t'1G�11Q.� Ml. - zaj� j� r'y,,,i Project No./Phase No.:
Well ID: M%AI _?-3 Sampler(s): _ co ( TE)V1
Well Diameter: 2 inches Initial Depth to Water: 3 .32 feet
Depth to Bottom: e+5'k feet Water Column Thickness: `a3 feet
Pumping Rate: "a mL/min. System Volume: Wad mL
Equipment: _'4ST,_P�IU5—U,A .0 1A 4Q_._WatU_LQA t�._r * 6IyJc�1LDLJ , �L`I
Time
pH
(S.U.)
Sp. Cond.
(US/cm)
Turb
(NTU)
Dis 02
(mg/L)
Temp.
(°C)
ORP
(millivolts)
DTW
(feet)
44SJ
zL
3.6
IOG
S. 84
t5.
I _
36. (.
I q -ss
ZZ,
a t. I
5.
1 G.
I q4- Z
3
2JO
40. 0
w
- � L
i s }
W--? ,S
3 6. +Z.
i515
iE; z8
3
ZZ _0
S `Is
IS a
21p.
3h. - 3
15fs
1 5 60
36i-3
11.8
5
5 '
Z16.
3e.
I�3C
300.9
G.9
15
c
1
�
I
-
Comments (weather conditions, color, type of sample, purge -water management, etc.):
Weather: SAvxq , (c
in purgin
Signature:
Date: OS- IZ-Z(eo
RA1QC Sr§n Off: Date: 6 - 4 �- 7-C•ze:

APPENDIX D
Statistical Analysis Worksheet

10/7/2009
3/16/2010
9/7/2010
3/23/2011
9/12/2011
3/12/2012
10/1/2012
3/12/2013
9/10/2013
3/11/2014
9/10/2014
3/9/2015
9/14/2015
3/7/2016
9/13/2016
9/14/2016
3/6/2017
3/7/2017
9/11/2017
9/12/2017
3/5/2018
12/11/2018
3/5/2019
7/31/2019
9/23/2019
11 /25/2019
1 /28/2020
3/2/2020
5/12/2020
OW-3
1170
1230
1460
1260
1390
1280
1170
1260
1150
1090
993
1200
1080
1150
1170
1220
1160
804
MW-12 (bg)
35.4
32.4
28
37
36.4
29.1
31.3
37
35.9
30.6
30.8
33.7
34.3
35.7
36.4
38.8
39
36.5
34.2
36.8
34.7
32.6
Prediction Limit
Constituent: Barium (ug/L) Analysis Run 6/24/2020 4:52 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables
MW-1RR (bg) MW-23 (bg) MW-24 (bg)
12.2
19.8
13.3
12.9
16.7
14.5
17.6
17.7
27.6
20.9
20
20
17
15.5
23
17.1
24.8
184 167
136 159
104 175
86.9 172
93.5 179
83.9 176
72.1 159
85.2 181

WQStat Plus" v.9.4.32
30
24
18
J
0)
12
6
0 4--
9/7/10
EPA 1989 Outlier Test
MW-1 RR (bg)
n=17
No statistical outliers
found.
Mean = 18.27
Std. dev. = 4.226
Critical Tn = 2.475
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.9593
Critical = 0.892
The distribution was found
to be normally distrib-
uted.
7/30/12 6/23/14 5/16/16 4/9/18 3/2/20
Constituent: Barium Analysis Run 6/16/2020 3:59 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
40
32
24
J
16
8
0 4-
10/7/09
EPA 1989 Outlier Test
MW-12 (bg)
n=22
No statistical outliers
found.
Mean = 34.39
Std. dev. = 3.016
Critical Tn = 2.603
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.9507
Critical = 0.911
The distribution was found
to be normally distrib-
uted.
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Barium Analysis Run 6/16/2020 4:08 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
200
160
120
J
0)
80
40
0 -k—
12/11/18
EPA 1989 Outlier Test
MW-23 (bg)
n = 8
No statistical outliers
found.
Mean = 105.7
Std. dev. = 36.99
Critical Tn = 2.032
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.8792
Critical = 0.818 (after
natural log transforma-
tion)
The distribution was found
to be log -normal.
3/24/19 7/6/19 10/17/19 1 /29/20 5/12/20
Constituent: Barium Analysis Run 6/16/2020 4:00 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
200
160
120
J
80
40
0 -k—
12/11/18
EPA 1989 Outlier Test
MW-24 (bg)
n = 8
No statistical outliers
found.
Mean = 171
Std. dev. = 8.536
Critical Tn = 2.032
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.8962
Critical = 0.818
The distribution was found
to be normally distrib-
uted.
3/24/19 7/6/19 10/17/19 1 /29/20 5/12/20
Constituent: Barium Analysis Run 6/16/2020 4:00 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
Exceeds Limit: OW-3
2000
1600
1200
:11
R11
0 4-
10/7/09
Prediction Limit
Interwell Parametric
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
♦ OW-3
Limit = 192.7
Background Data Summary: Mean=76.49, Std. Dev.=67.61, n=33. Seasonality was not detected with 95%
confidence. Report alpha = 0.05. Most recent point compared to limit.
Constituent: Barium Analysis Run 6/16/2020 4:12 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

Prediction Limit
Constituent: Chromium (ug/L) Analysis Run 6/24/2020 4:47 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables
MW-11
MW-12 (bg)
MW-1RR (bg)
MW-23 (bg)
MW-24 (bg)
10/6/2009
10.9
10/7/2009
<1.4
3/15/2010
12.1
3/16/2010
<1.4
9/7/2010
15.9
<1.4
<1.4
3/22/2011
16.5
1.45
3/23/2011
<1.4
9/12/2011
<1.4
9/13/2011
14.6
1.74
3/12/2012
<1.4
10/1/2012
15
<1.4
3/ 12/2013
16.7
1.18
1.36
9/10/2013
<1.4
<1.4
3/11/2014
<1.4
9/9/2014
14
<1.4
9/10/2014
<1.4
3/9/2015
13.6
<1.4
<1.4
9/14/2015
14.5
<1.4
<1.4
3/7/2016
11.2
<1.4
<1.4
9/13/2016
<1.4
9/14/2016
<1.4
9/15/2016
14.3
3/6/2017
1.31
3/8/2017
13.9
<1.4
9/11/2017
<1.4
9/12/2017
11.1
<1.4
3/5/2018
10.9
<1.4
<1.4
12/11/2018
11.2
<1.4
<1.4
1.42
5.42
3/5/2019
14.9
<1.4
<1.4
2.92
6.93
7/31 /2019
5.52
10
9/23/2019
10.7
<1.4
<1.4
3.82
7.81
11/25/2019
5.76
9.77
1 /28/2020
5.1
9.73
3/2/2020
10.4
<1.4
<1.4
4.83
8.42
5/12/2020
4.97
10.1

WQStat Plus" v.9.4.32
2
1.6
1.2
J
0.8
0.4
0 4--
9/7/10
EPA 1989 Outlier Test
MW-1 RR (bg)
n=17
No statistical outliers
found.
The distribution was not
normalizable.
Mean = 1.421
Std. dev. = 0.08385
Critical Tn = 2.475.
After outlier removal:
mean = 1.401, std. dev.
= 0.01652, critical =
2.443; mean = 1.397, std.
dev. = 0.01033, critical
= 2.409.
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.3864
Critical = 0.892
7/30/12 6/23/14 5/16/16 4/9/18 3/2/20
Constituent: Chromium Analysis Run 6/16/2020 4:16 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
2
1.6
1.2
J
0.8
0.4
0 4-
10/7/09
EPA 1989 Outlier Test
MW-12 (bg)
n=22
No statistical outliers
found.
The distribution was not
normalizable.
Mean = 1.386
Std. dev. = 0.04982
Critical Tn = 2.603.
After outlier removal:
mean = 1.396, std. dev.
= 0.01964, critical =
2.58.
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.3182
Critical = 0.911
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Chromium Analysis Run 6/16/2020 4:27 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
6
4.8
3.6
J
2.4
1.2
0 -k—
12/11/18
EPA 1989 Outlier Test
MW-23 (bg)
n = 8
Statistical outlier is
drawn as solid.
Mean = 4.293
Std. dev. = 1.484
Critical Tn = 2.032.
After outlier removal:
mean = 4.703, std. dev.
= 0.999, critical = 1.938.
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.9013
Critical = 0.803
The distribution, after
removal of outlier, was
found to be normally dis-
tributed.
3/24/19 7/6/19 10/17/19 1 /29/20 5/12/20
Constituent: Chromium Analysis Run 6/16/2020 4:17 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
11
8.8
6.6
J
4.4
2.2
0 -k—
12/11/18
EPA 1989 Outlier Test
MW-24 (bg)
n = 8
No statistical outliers
found.
Mean = 8.523
Std. dev. = 1.706
Critical Tn = 2.032
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.8739
Critical = 0.818
The distribution was found
to be normally distrib-
uted.
3/24/19 7/6/19 10/17/19 1 /29/20 5/12/20
Constituent: Chromium Analysis Run 6/16/2020 4:18 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
Exceeds Limit: MW-11
20
16
12
3
0 4-
10/6/09
Prediction Limit
Interwell Non -parametric
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
♦ MW-11
Limit = 10.1
Non -parametric test used in lieu of parametric prediction limit because censored data exceeded 50%. Limit is highest
of 54 background values. 62.96% NDs. Report alpha = 0.01818. Most recent point compared to limit. Seasonality
was not detected with 95% confidence.
Constituent: Chromium Analysis Run 6/16/2020 4:28 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
20
16
12
J
8
4
0 4-
10/6/09
EPA 1989 Outlier Test
MW-11
n=19
No statistical outliers
found.
Mean = 13.28
Std. dev. = 2.12
Critical Tn = 2.532
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.9015
Critical = 0.901
The distribution was found
to be normally distrib-
uted.
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Chromium Analysis Run 6/16/2020 4:46 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
Within Limit
19
15.2
11.4
7.6
0 4-
10/6/09
Prediction Limit
Intrawell Parametric
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
■ MW-11 background
♦ MW-11 compliance
Limit = 18.88
Background Data Summary: Mean=13.44, Std. Dev.=2.059, n=18. Insufficient data to test for seasonality: data were
not deseasonalized. Report alpha = 0.01. Most recent point compared to limit.
Constituent: Chromium Analysis Run 6/16/2020 4:47 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

Prediction Limit
Constituent: Cobalt (ug/L) Analysis Run 6/24/2020 4:48 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables
MW-12 (bg)
MW-7
MW-6
OW-3
MW-1RR (bg)
MW-19
MW-24 (bg)
MW-23 (bg)
10/5/2009
1.23
10/6/2009
20.4
19
10/7/2009
20.5
3/15/2010
<1.1
4.49
18.4
9/7/2010
<1.1
14.9
15.7
<1.1
3/21/2011
<1.1
3/22/2011
5.23
17.4
<1.1
3/23/2011
22.2
9/12/2011
<1.1
57
9/13/2011
23.9
17.3
<1.1
3/12/2012
<1.1
3.84
15.8
10/1/2012
<1.1
16.1
14.4
20
3/11/2013
1.14
3/12/2013
4.24
14.5
19.4
<1.1
9/9/2013
<1.1
9/10/2013
4.62
15.5
18.3
<1.1
3/10/2014
<1.1
5.1
16.3
9/9/2014
<1.1
19
18
<1.1
9/10/2014
15.9
3/9/2015
<1.1
4.71
17.8
16.5
<1.1
9/14/2015
23
14.8
15.2
<1.1
3/7/2016
<1.1
4.45
16
<1.1
<1.1
9/13/2016
<1.1
9/14/2016
10.7
<1.1
9/15/2016
14.5
3/7/2017
17.4
3/8/2017
19.4
14.4
<1.1
3/9/2017
<1.1
9/11/2017
14.7
10.7
9/12/2017
<1.1
9.72
<1.1
27.8
3/5/2018
16
13.9
12.8
<1.1
12/11/2018
<1.1
3.85
15.2
10.8
<1.1
25.1
1.98
<1.1
3/5/2019
<1.1
4.28
14.4
16.2
<1.1
20.3
<1.1
<1.1
7/31/2019
<1.1
<1.1
9/23/2019
<1.1
12.7
17
11.5
<1.1
18
<1.1
<1.1
11/25/2019
<1.1
<1.1
1/28/2020
<1.1
<1.1
3/2/2020
<1.1
4.28
13.7
7.51
<1.1
18.3
<1.1
<1.1
5/12/2020
<1.1
<1.1

WQStat Plus" v.9.4.32
3
2.4
1.8
J
1.2
0.6
0 4--
9/7/10
EPA 1989 Outlier Test
MW-1 RR (bg)
n=17
No statistical outliers
found.
The distribution was not
normalizable.
Mean = 1.1
Std. dev. = 0
Critical Tn = 2.475
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0
Critical = 0.892
7/30/12 6/23/14 5/16/16 4/9/18 3/2/20
Constituent: Cobalt Analysis Run 6/16/2020 4:31 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
2
1.6
1.2
J
0.8
0.4
0 4-
10/5/09
EPA 1989 Outlier Test
MW-12 (bg)
n=20
No statistical outliers
found.
The distribution was not
normalizable.
Mean = 1.109
Std. dev. = 0.02996
Critical Tn = 2.557.
After outlier removal:
mean = 1.102, std. dev.
= 0.009177, critical =
2.532.
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.3269
Critical = 0.905
11 /4/11 12/3/13 1 /2/16 1 /31 /18 3/2/20
Constituent: Cobalt Analysis Run 6/16/2020 4:31 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
EPA 1989 Outlier Test
MW-23 (bg)
3
2.4
1.8
1.2
0.6
0
12/11/18
n = 8
No statistical outliers
found.
The distribution was not
normalizable.
Mean = 1.4
Std. dev. = 0
Critical Tn = 2.032
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0
Critical = 0.818
3/24/19 7/6/19 10/17/19 1 /29/20 5/12/20
Constituent: Cobalt Analysis Run 6/16/2020 4:32 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
2
1.6
1.2
J
0.8
0.4
0 -k—
12/11/18
EPA 1989 Outlier Test
MW-24 (bg)
n = 8
No statistical outliers
found.
The distribution was not
normalizable.
Mean = 1.472
Std. dev. = 0.2051
Critical Tn = 2.032
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.4186
Critical = 0.818
3/24/19 7/6/19 10/17/19 1 /29/20 5/12/20
Constituent: Cobalt Analysis Run 6/16/2020 4:32 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
Hollow symbols indicate censored values.
Exceeds Limit: OW-3, MW-6, MW-19
J
91
En
&ez
24
12
0
10/6/09
Prediction Limit
Interwell Non -parametric
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
OW-3
■ MW-6
C
MW-19
Limit = 1.98
Non -parametric test used in lieu of parametric prediction limit because censored data exceeded 50%. Limit is highest
of 53 background values. 94.34% NDs. Report alpha = 0.05357. Individual comparison alpha = 0.01819. Most
recent point for each compliance well compared to limit. Seasonality was not detected with 95% confidence.
Constituent: Cobalt Analysis Run 6/16/2020 4:33 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
20
16
12
J
8
4
0 4-
10/6/09
EPA 1989 Outlier Test
MW-6
n=21
No statistical outliers
found.
Mean = 15.91
Std. dev. = 1.587
Critical Tn = 2.58
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.939
Critical = 0.908
The distribution was found
to be normally distrib-
uted.
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Cobalt Analysis Run 6/16/2020 4:43 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
Within Limit
21
12.6
M
4.2
0 4-
10/6/09
Prediction Limit
Intrawell Parametric
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
■ MW-6 background
♦ MW-6 compliance
Limit = 20.04
Background Data Summary: Mean=16.03, Std. Dev.=1.543, n=20. Insufficient data to test for seasonality: data were
not deseasonalized. Report alpha = 0.01. Most recent point compared to limit.
Constituent: Cobalt Analysis Run 6/16/2020 4:44 PM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus" v.9.4.32
30
24
18
J
12
6
0 4-
10/6/09
EPA 1989 Outlier Test
MW-7
n=22
No statistical outliers
found.
The distribution was not
normalizable.
Mean = 10.85
Std. dev. = 7.198
Critical Tn = 2.603
Normality test used:
Shapiro Wilk@alpha =
0.05
Calculated = 0.8245
Critical = 0.911
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
Constituent: Cobalt Analysis Run 6/23/2020 9:54 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

WQStat Plus'" v.9.4.32
Within Limit
30
24
18
12
on
0 4-
10/6/09
Prediction Limit
Intrawell Parametric
11 /5/11 12/4/13 1 /3/16 2/1 /18 3/2/20
■ MW-7 background
♦ MW-7 compliance
Limit = 29.85
Background Data Summary: Mean=11.16, Std. Dev.=7.22, n=21. Insufficient data to test for seasonality: data were
not deseasonalized. Report alpha = 0.01. Most recent point compared to limit.
Constituent: Cobalt Analysis Run 6/23/2020 9:55 AM
Facility: Hanes Mill Road Landfill Data File: Hanes Mill Stats Tables

(� GOLDER
golder.com