4116_WIHighPoint_CDLF_GWMR_20171012

Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation

SECOND SEMI-ANNUAL 2017
SAMPLING EVENT
Waste Industries of High Point Construction and
Demolition Landfill, permit No. 41-16
Guilford County, North Carolina

Submitted To:

Waste Industries of High Point
5830 Riverdale Drive
Jamestown, NC 27282

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

October 2017 Project No. 1239-651617.102WATER QUALITY MONITORING REPORT

Golder Associates NC, Inc.
5B Oak Branch Drive
Greensboro, NC. 27407 USA
Tel: [phone] Fax: [phone] www.golder.com
Engineering Lic. No. C-2862/Geology Lic. No. C-399
Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation

October 12, 2017 1239-651617.102
Ms. Jaclynne Drummond
North Carolina Department of Environmental Quality
Division of Waste Management - Solid Waste Section
2090 US Highway 70
Swannanoa, NC 28778
828-296-4706
RE: WATER QUALITY MONITORING REPORT
SECOND SEMI-ANNUAL 2017 SAMPLING EVENT
WASTE INDUSTRIES OF HIGH POINT C&D LANDFILL, PERMIT NO. 41-16
GUILFORD COUNTY, NORTH CAROLINA
Dear Jackie:
Golder Associates NC, Inc. (Golder), on behalf of Waste Industries, is submitting the enclosed Water
Quality Monitoring Report, which documents the results of the July 11 - 12, 2017, semi-annual compliance
monitoring event at the Waste Industries of High Point Construction and Demolition (C&D) Landfill. There
was no discernable flow at upstream surface water locations SW-1 and SW-3 and therefore, samples were
not collected at those locations.
Cobalt was detected in the samples from downgradient wells MW-2, MW-6, and AMW-2 at concentrations
that exceeded the SWSL and Solid Waste Section Groundwater Protection Standard (GPS). The cobalt
concentrations from samples MW-2 and MW-6 were statistically compared to background concentrations
and were not determined to represent statistically significant increases (SSIs) over background
concentrations. There were insufficient background data to perform intra-well statistical analyses on the
concentrations of cobalt in the sample from AMW-2; therefore, this SSI is unverified. The concentration of
cobalt in the sample from AMW-2 is similar to the concentration from MW-6, which is directly upgradient of
AMW-2. Publically available data support that cobalt is naturally occurring in soils and stream sediment
from within 20 miles of the Waste Industries of High Point C&D Landfill. Detected constituents and
concentrations are generally consistent with historical data. Based on these data, no further action is
warranted.
Cobalt was also detected at estimated concentrations below the Solid Waste Section Limit (SWSL), but
above the GPS, in samples from MW-8 and AMW-1. Vanadium was detected in samples from
downgradient wells MW-2, MW-4S, MW-5, MW-6, and MW-7S at estimated concentrations below the
SWSL, but above the GPS. The concentrations of cobalt and vanadium are similar to historical data and
are considered to be representative of natural conditions; because they are estimated below the SWSLs,
no further action is warranted.
The indicator parameter iron was detected at concentrations above the SWSL and NC 2L Standard in
samples from MW-2, MW-4S, MW-5, MW-6, MW-8, AMW-1, and AMW-2. The indicator parameter
manganese was detected at concentrations above the SWSL and NC 2L Standard in samples from MW-2,
MW-5, MW-6, MW-8, AMW-1, and AMW-2. Total dissolved solids (TDS) was detected above the SWSL
and NC 2L Standard in the samples from MW-2 and MW-6. Concentrations of indicator parameters are
generally consistent with historical data, where present.
The iron, manganese, and TDS concentrations were statistically compared to background concentrations.
Upon completion of statistical analysis, the concentrations of iron in samples from MW-2, MW-4S, MW-5,
MW-6, MW-8, and AMW-1; manganese in samples from MW-2, MW-5, and MW-6; and total dissolved
solids in the samples from MW-2 and MW-6 were determined to not represent statistically significant
increases (SSIs) over background concentrations during the July 2017 event. These concentrations are
interpreted to be naturally occurring and no further action is warranted. There were insufficient background

October 2017 i 1239-651617.102

Table of Contents
1.0 INTRODUCTION .............................................................................................................................. 1
1.1 Site Description and Background ................................................................................................. 1
1.2 Compliance Monitoring History .................................................................................................... 1
1.3 Hydrogeologic Setting .................................................................................................................. 3
2.0 FIELD PROGRAM, MONITROING RESULTS AND DISCUSSION ................................................ 4
2.1 Visual Inspection Program ........................................................................................................... 4
2.2 Well Network and Groundwater Elevation Measurements .......................................................... 4
2.3 July 2017 Groundwater and Surface Water Monitoring Event ..................................................... 5
2.4 Laboratory Analysis Program ....................................................................................................... 6
2.5 July 2017 Sampling Results ......................................................................................................... 6
3.0 LABORATORY AND FIELD QA/QC ................................................................................................ 7
4.0 DATA EVALUATION ........................................................................................................................ 7
4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons ....................... 7
4.2 Statistical Evaluations .................................................................................................................. 8
4.3 Evaluation of Cobalt, Iron, and Manganese Concentrations ....................................................... 9
5.0 CONCLUSIONS ............................................................................................................................. 10
6.0 REFERENCES ............................................................................................................................... 10
List of Tables
Table 1 Summary of Historical Groundwater Elevation Data in Monitoring Wells
Table 2 Summary of Estimated Horizontal Flow Velocities
Table 3 Summary of Well Construction Information
Table 4 Summary of Detected Constituents in Groundwater
Table 5 Summary of Field Parameters in Groundwater
Table 6 Summary of Detected Constituents in Surface Water
Table 7 Summary of Field Parameters in Surface Water
List of Figures
Figure 1 Groundwater Contour Map, July 11, 2017
List of Appendices
Appendix A Groundwater and Surface Water Sampling Logs
Appendix B July 2017 Groundwater and Surface Water Certificate-of-Analysis, Chain-of-Custody Form
and Laboratory Data Review
Appendix C Statistical Evaluation Worksheets and Stats Summary Table
Appendix D Soil and Stream Sediment Data

October 2017 1 1239-651617.102

1.0 INTRODUCTION
This report summarizes the monitoring results from the July 11 - 12, 2017, groundwater and surface water
sampling and analysis event at the Waste Industries of High Point Construction & Demolition (C&D) Landfill
in Guilford County, North Carolina (NC) in accordance with Title 15A of the North Carolina Administrative
Code (NCAC) Subchapter 13B.0545. The active C&D Landfill is owned and operated by Waste Industries
under Permit No. 41-16 issued by the NC Department of Environmental Quality (DEQ).
1.1 Site Description and Background
The location of the facility is shown on the inlay on Figure 1. As presented, the Waste Industries of High
Point C&D Landfill is located along Riverdale Road within the city limits of Jamestown in Guilford County,
NC. The site consists of approximately 154 acres, of which, approximately 17.2 acres is currently permitted
as the Phase 1 and Phase 2 waste units.
There are three small unnamed streams that traverse the site and flow into an unnamed tributary of
Richland Creek, which forms the southern property boundary as shown on Figure 1. The first unnamed
tributary is a southwest trending stream that forms the northwestern property boundary. The second
tributary is a southwest trending drainage in the center of the property and lies just east of the Phase 2
waste unit. The third tributary is a southwest trending drainage in the eastern portion of the site. A large
man-made pond is located near the eastern property boundary. A small storm water basin was constructed
in the northwest corner of the facility and a larger storm water basin was constructed along the southwestern
part of the site during the construction of Phase 1.
Topographic surface elevations at the facility range from approximately 700 to 820 feet above mean sea
level. The western portion of the site mainly consisted of trees and heavy brush before Phase 1 of the C&D
landfill was constructed. Now, most of that area consists of landfill operations. The eastern portion of the
site has historically been used for agricultural purposes. A reclamation facility is located at the northernmost
part of the site. A large portion of the surrounding properties are agricultural, sparse residential, or owned
by the City of High Point for operations associated with Kersey Valley Landfill.
1.2 Compliance Monitoring History
Groundwater monitoring at the facility was initiated in October 2003 after approval of the Groundwater
Monitoring Plan by the NC DEQ. Currently the facility’s monitoring network is currently comprised of eight
monitoring wells (MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, and MW-8), which monitor the
uppermost aquifer beneath the facility. Monitoring wells MW-7S and MW-8 were installed in July 2006 to
monitor the Phase 2 expansion at the facility. Two assessment monitoring wells, AMW-1 and AMW-2, were
installed in December 2016 and were sampled for the first time during the January 2017 monitoring event.

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In addition to the groundwater monitoring points, the facility’s monitoring network includes four surface
water sampling points, SW-1 and SW-3, which are upstream from the waste area, and SW-2 and SW-4,
which are downstream monitoring points. These points are sampled in conjunction with the groundwater
monitoring wells in accordance with the facility’s permit.
Vinyl chloride and benzene were detected in the sample from downgradient monitoring well MW-2 at
concentrations above their respective Solid Waste Section Reporting Limits (SWSLs) and NC 2L Standards
during the July 2014 sampling event. On February 3, 2015, an Alternate Source Demonstration was
submitted in response to this detection that provided evidence that an unidentified source other than the
waste unit is likely responsible for the volatile organic compounds (VOCs) detected in the samples from
MW-2. On March 2, 2015, NC DEQ issued a response letter that allowed an additional six months to assess
potential sources of VOCs.
Benzene was detected in the sample from MW-2 at a concentration above the SWSL and NC 2L Standard
during the August 2015 sampling event and the facility transitioned to an Assessment Monitoring Program.
An Assessment Monitoring Notification and Work Plan (Work Plan) was submitted to the NC DEQ on
December 7, 2015, and was approved on January 28, 2016. The approved Work Plan stated that samples
from groundwater monitoring wells MW-1 and MW-2 would be analyzed for the NC Appendix II list of
constituents during the first semi-annual water quality monitoring event of 2016 and during subsequent
events, MW-1 and MW-2 would be analyzed for NC Appendix I list of constituents plus detected NC
Appendix II constituents. No additional NC Appendix II constituents were detected in the samples from
MW-1 and MW-2 during the February 2016 event and therefore, future events will be analyzed for the NC
Appendix I list of constituents.
Benzene was detected in the sample from MW-6 at a concentration above the SWSL and NC 2L Standard
during the July 2016 sampling event. Based on the July 2016 monitoring results, an Assessment Monitoring
Notification and Work Plan Addendum (Addendum) was submitted to the NC DEQ on October 21, 2016,
and was approved on October 31, 2016. The approved Addendum stated that assessment monitoring
wells, AMW-1 and AMW-2, would be installed downgradient of MW-2 and MW-6, respectively. The
Addendum also stated that samples from groundwater monitoring wells MW-6, AMW-1, and AMW-2 would
be analyzed for the NC Appendix II list of constituents during the first semi-annual water quality monitoring
event of 2017 and during subsequent events, MW-6, AMW-1, and AMW-2 would be analyzed for NC
Appendix I list of constituents plus detected NC Appendix II constituents. Assessment monitoring wells
AMW-1 and AMW-2 were installed in December 2016 in accordance with the Addendum and sampled for
NC Appendix II constituents during the January 2017 event. No additional NC Appendix II constituents
were detected in the samples from AMW-1 and AMW-2 during the January 2017 event and therefore, future
events will be analyzed for the NC Appendix I list of constituents.

October 2017 3 1239-651617.102

As part of ongoing remedial efforts, Waste Industries recently completed final soil cap construction for
Phases 1 and 2 in July 2017. Additionally, 14 in-waste passive landfill gas vents were installed, some of
which are located in proximity to areas of known VOC groundwater contamination at groundwater
monitoring wells MW-2 and MW-6.
1.3 Hydrogeologic Setting
Geologically, the facility is located within the Carolina Slate Belt of the Piedmont Physiographic Province of
North Carolina (NCGS, 1985). Generally, the Carolina Slate Belt consists of Late Proterozoic to Cambrian
volcanic and greenschist-facies metasedimentary rocks intruded by plutonic suites (Butler and Secor,
1991). The site geology is characterized by a regional-scale felsic intrusive complex, which consists mainly
of white to gray, fine- to coarse-grained, massive to foliated metamorphosed granitic rock. The region is
characterized by regional and small scale Mesozoic diabase dikes.
The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of
saprolite, partially weathered rock (PWR), and granitic bedrock. Groundwater occurs at depths of
approximately 25 feet below grade along the northern upgradient side of the waste disposal area, and at a
depth of less than 10 feet below grade along the perimeter downgradient boundary. Depth to water
measurements, obtained during the July 2017 monitoring event and summarized in Table 1, were used to
prepare a groundwater surface contour map presented on Figure 1.
Surface water and groundwater at the site generally flows south to southwest towards a tributary of Richland
Creek. Richland Creek is approximately 1300 feet south of the site and flows to the Deep River, which is
approximately 0.5 miles from the site. Groundwater beneath the site flows in three distinguishable and
vertically interconnected hydrogeologic units; saprolite, PWR, and bedrock. The groundwater surface
contour map and interpreted flow directions are consistent with previously submitted interpretations for this
facility.
Based on the July 11, 2017, groundwater surface contour map, the average hydraulic gradient in the
shallow aquifer underlying the site, as measured along the conceptual flow path shown on the contour map,
was calculated to be approximately 0.043 feet per foot. Groundwater velocities were calculated using a
hydraulic conductivity of 1.37E-05, which is the geometric mean of the hydraulic conductivities for each of
the hydrogeologic units present at the facility. The estimated effective porosity of the shallow aquifer is
expected to range from 0.20 (saprolite) to 0.09 (fractured rock). The effective porosity of the fractured rock
was used in calculations to provide a conservative estimate of groundwater flow.
Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the
facility was calculated using the following modified Darcy equation:

October 2017 4 1239-651617.102

Vgw = Ki/ne
where Vgw = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal
hydraulic gradient, and ne = effective porosity.
The average estimated linear groundwater flow velocity under the waste management unit is approximately
6.7 feet/year, which is generally consistent with previous estimates (Table 3). The range of groundwater
flow is expected to vary depending on the hydrogeologic unit in which it occurs. The linear velocity equation
above makes the simplified assumptions of a homogeneous and isotropic aquifer. Therefore, this equation
represents a likely average value for the uppermost aquifer and does not account for heterogeneous and/or
anisotropic conditions that may be present in the uppermost aquifer at the facility.
2.0 FIELD PROGRAM, MONITROING RESULTS AND DISCUSSION
Field activities conducted for the July 2017 sampling event are discussed in the following sections.
2.1 Visual Inspection Program
In order to ensure that a potential release is detected at the earliest possible time, the visual inspection
program is used by Golder personnel at the Waste Industries of High Point C&D Landfill. This program
includes physical indicators such as potential water table mounding beneath the waste management unit,
physical examination of any stresses in biological communities, visible signs of leachate migration (i.e.,
leachate seeps), unexplained changes in soil characteristics, and any other change to the environment due
to the waste management unit. During the July 2017 compliance monitoring event, no physical indicators
of a potential release were observed in the vicinity of the waste management areas.
2.2 Well Network and Groundwater Elevation Measurements
The current approved network of groundwater monitoring wells at the facility consists of eight compliance
monitoring wells and two assessment monitoring wells. Monitoring well construction information is
summarized on Table 3 and the well locations are shown on Figure 1. The well locations were selected to
yield groundwater samples representative of the conditions in the uppermost aquifer underlying the facility,
and to monitor for potential releases from the landfill unit. Two upstream (SW-1 and SW-3) and two
downstream (SW-2 and SW-4) surface water monitoring points are also monitored and are shown on Figure
1.
Monitoring well MW-1 is the facility’s background well and is located hydraulically upgradient of the waste
disposal area. Monitoring wells MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and AMW-2,
are located downgradient of the waste disposal area and represent the facility’s downgradient compliance
wells. The well locations were selected to yield groundwater samples representative of the conditions in
the uppermost aquifer underlying the facility and monitor for potential releases from the landfill unit.

October 2017 5 1239-651617.102

Depth-to-water measurements were recorded to the nearest 0.01 foot prior to initiating groundwater purging
and sampling activities. The respective groundwater level elevations for this event are presented in Table 1
along with historical water level data.
As presented, the data indicate that the hydraulic head level in the uppermost aquifer beneath the facility
is fairly consistent, with temporal variation from the long-term average limited to approximately 5 feet (plus
or minus). As expected, the range in fluctuation appears to be greater in the upgradient well MW-1, as this
well is located in a groundwater recharge area. The range in fluctuation in downgradient compliance wells,
which are located near groundwater discharge areas, is much less, presumably due to the stabilizing effect
of the hydraulic discharge boundary.
2.3 July 2017 Groundwater and Surface Water Monitoring Event
Personnel from Golder visited the facility on July 11-12, 2017, to purge and sample monitoring wells MW-1,
MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and AMW-2, and to sample surface water
monitoring points SW-1, SW-2, SW-3, and SW-4. Depth-to-water measurements were obtained from the
network monitoring wells and additional wells (MW-4D, AMW-1, and AMW-2) to the nearest 0.01 foot using
an electronic water level indicator prior to purging the wells. There was no discernable flow at upstream
surface water locations SW-1 and SW-3 and therefore, samples were not collected.
Compliance monitoring wells were purged and sampled using low-flow sampling techniques from dedicated
bladder pumps. Assessment monitoring wells were purged and sampled using low-flow sampling
techniques from portable bladder pumps. Measurements of temperature, pH, specific conductivity,
dissolved oxygen (DO), oxidation-reduction potential (ORP), and turbidity were recorded on approximately
3- to 5-minute intervals during the purge, depending on the purge rate. In general, the purge rate was
matched to the yield of the monitoring well, as determined by continuously monitoring the depth-to-water,
not allowing the purge rate to exceed 300 milliliters per minute. Purging was continued until stabilization
was indicated by the field parameters.
Prior to sampling, the laboratory-supplied sample containers were prepared. Each sample container was
labeled with the sample identification number, sampling personnel, date and time of sample collection,
project name and number, and requested chemical analyses. The required groundwater samples were
collected directly from the dedicated bladder pump discharge lines into the labeled, laboratory-supplied,
pre-preserved sample containers after purging was completed based on stabilization of field parameters.
The surface water samples were collected directly from the stream flow, by lowering the sample containers
into the stream flow with the opening facing away from the current flow, taking care to prevent the over flow
of the sample containers and to minimize sample-induced turbidity. Measurements of temperature, pH,

October 2017 6 1239-651617.102

specific conductivity, DO, ORP, and turbidity were recorded during the collection of the surface water
samples.
After collection, the samples were placed in a cooler on ice, under chain-of-custody control. Copies of the
sampling logs are presented in Appendix A. Included in each log is a description of the sampling equipment,
sampling location, sampling method, field observations, and field measurements.
2.4 Laboratory Analysis Program
The July 2017 groundwater and surface water samples were shipped to Environmental Conservation
Laboratories, Inc. (ENCO) of Cary, NC under chain-of-custody control for analysis. As presented,
groundwater samples from MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and
AMW-2 were analyzed for the NC Appendix I list of constituents plus the C&D indicator parameters specific
to 15A NCAC 13B .544(a)(1)(D). The surface water samples at the facility were analyzed for the NC
Appendix I list of constituents. Groundwater and surface water samples were also analyzed for
tetrahydrofuran, as required in a memo issued by the NC DEQ dated July 25, 2010. The samples were
received at the laboratory on July 13, 2017, in good condition and properly preserved.
2.5 July 2017 Sampling Results
Analytical results and field parameters for the July 2017 groundwater samples are summarized in Tables 4
and 5 with available historical data. Analytical results and field parameters for the July 2017 surface water
samples are summarized in Tables 6 and 7 with available historical data. The laboratory certificate-of-
analysis, chain-of-custody form and laboratory data review for the sampling event are included in
Appendix B.
As presented in Table 4, two NC Appendix I inorganic constituents were detected above their respective
SWSLs in samples from one or more downgradient compliance monitoring wells at the facility during the
July 2017 event. Barium was detected at concentrations above the SWSL in samples from all nine of the
downgradient monitoring wells during the event. Cobalt was detected above the SWSL in the samples from
MW-2, MW-6, and AMW-2.
Indicator parameter iron was detected above the SWSL in samples from MW-2, MW-4S, MW-5, MW-6,
MW-8, AMW-1, and AMW-2. Indicator parameter manganese was detected above the SWSL in the
samples from MW-2, MW-5, MW-6, MW-8, AMW-1, and AMW-2. Alkalinity, chloride, and total dissolved
solids (TDS) were detected at quantifiable concentrations in samples from one or more monitoring wells
and results are generally consistent with historical data.

October 2017 7 1239-651617.102

As presented in Table 4, one NC Appendix I VOCs were detected above their SWSLs during the July 2017
monitoring event. Benzene was detected above the SWSL in the sample from MW-6. No other NC
Appendix I VOCs were detected at concentrations that exceeded their respective SWSLs during this event.
No NC Appendix I inorganic constituents or VOCs were detected at concentrations that exceeded the
SWSLs during the event in surface water points.
3.0 LABORATORY AND FIELD QA/QC
A field blank was collected by Golder personnel as part of the July 2017 sampling event. ENCO analyzed
the field blank for the NC Appendix I list of constituents plus iron, manganese, and tetrahydrofuran. In
addition to the field blank, a laboratory-prepared trip blank accompanied the volatile sample containers to
and from the laboratory and was analyzed for NC Appendix I VOCs plus tetrahydrofuran. ENCO analyzed
the laboratory blanks for NC Appendix I constituents plus iron, manganese, and tetrahydrofuran. A review
of the laboratory data was performed by Golder personnel and is included in Appendix B.
Barium was detected in the field blank at an estimated concentration. Based on Golder’s review, no
concentrations were determined to be blank-qualified.
4.0 DATA EVALUATION
4.1 North Carolina Groundwater and Surface Water Quality Standard
Comparisons
As presented in Table 4, one NC Appendix I inorganic constituent, cobalt, was detected above the SWSL
and applicable water quality standard in samples from downgradient wells MW-2, MW-6, and AMW-2 during
this event. Dissolved cobalt was analyzed for the sample from AMW-2, and the concentration was
comparable to the total value. Cobalt was also detected at an estimated concentration below the SWSL,
but above the GPS, in the samples from MW-8 and AMW-1. Vanadium was detected at an estimated
concentration below the SWSL, but above the GPS in the samples from MW-2, MW-4S, MW-5, MW-6, and
MW-7S. The concentrations of cobalt and vanadium are similar to historical data and are considered to be
representative of natural conditions; no further action is recommended.
The indicator parameter iron was detected above the SWSL and NC 2L Standard in samples from MW-2,
MW-4S, MW-5, MW-6, MW-8, AMW-1, and AMW-2. Dissolved iron was analyzed for the sample from
AMW-2. The concentration of dissolved iron in the sample from AMW-2 was much lower than the total
concentration and was below the SWSL and NC 2L Standard, which indicates that entrained sediment may
have biased the iron concentrations high.
The indicator parameter manganese was detected above the SWSL and NC 2L Standard in the samples
from MW-2, MW-5, MW-6, MW-8, AMW-1, and AMW-2. Dissolved manganese was analyzed for samples

October 2017 8 1239-651617.102

from MW-8, AMW-1, and AMW-2, which confirmed the total iron concentrations. Total dissolved solids
were detected above the SWSL and NC 2L Standard in the samples from MW-2 and MW-6 as they have
during recent events. Because the concentrations of iron and manganese in the samples from
downgradient wells are similar to concentrations in background data for the facility, as described in the
following section, the concentrations of iron and manganese are interpreted to be naturally occurring.
Benzene was detected above the SWSL and NC 2L in the sample from MW-6. Benzene has previously
been detected in samples from MW-6 at similar concentrations. No other NC Appendix I VOCs were
detected at concentrations that exceeded applicable groundwater standards during the event. No NC
Appendix I constituents were detected in downstream surface water monitoring locations above their
respective SWSLs during the July 2017 event.
4.2 Statistical Evaluations
As discussed above, cobalt was detected in the sample from downgradient wells MW-2, MW-6, and AMW-2
at concentrations that exceeded their respective SWSL and GPS. Indicator parameter iron was detected
above the SWSL and NC 2L Standard in samples from MW-2, MW-4S, MW-5, MW-6, MW-8, AMW-1, and
AMW-2. Indicator parameter manganese was detected above the SWSL and NC 2L Standard in the
samples from MW-2, MW-5, MW-6, MW-8, AMW-1, and AMW-2. Total dissolved solids were detected
above the SWSL and NC 2L Standard in the samples from MW-2 and MW-6. Therefore, the concentrations
of cobalt, iron, manganese, and total dissolved solids were statistically evaluated to determine if the
reported concentrations exceeded facility background concentrations.
The statistical worksheets and summary table are presented as Appendix C. Based on statistical analyses,
the concentrations of cobalt in the samples from MW-2 and MW-6; iron in samples from MW-2, MW-4S,
MW-5, MW-6, MW-8, AMW-1; manganese in samples from MW-2, MW-5, and MW-6; and total dissolved
solids in the samples from MW-2 and MW-6 were determined to not represent statistically significant
increases (SSIs) over background concentrations during the July 2017 event. These concentrations are
interpreted to be naturally occurring and no further action is warranted.
There were insufficient background data to perform intra-well statistical analyses on the concentrations of
cobalt, iron, and manganese in the sample from AMW-2 and manganese in the sample from AMW-1.
However, the concentration of cobalt in the sample from AMW-2 is similar to the concentration in the sample
from MW-6, which is directly upgradient of AMW-2. Further, the concentration of cobalt in MW-6 was not
determined to be statistically significant.
The concentrations of manganese in the sample from AMW-1 and the concentrations iron and manganese
in the sample from AMW-2 are lower than the concentrations detected in samples from the monitoring wells
directly upgradient (MW-2 and MW-6, respectively). The concentration of manganese in the sample from

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MW-8 is considered statistically significant. The concentration is much higher than historical concentrations
and is considered suspect; the concentration will be verified during future sampling events.
4.3 Evaluation of Cobalt, Iron, and Manganese Concentrations
A literature search of cobalt, iron, and manganese concentrations in soils and stream sediment for NC and
within 20 miles from the Waste Industries of High Point C&D Landfill, specifically, was conducted to provide
additional evidence that the source of cobalt and manganese in samples are naturally occurring. Data
presented in the November 2003 United States (US) Environmental Protection Agency (EPA) document
“Guidance for Developing Ecological Soil Screening Levels” indicate that cobalt, iron, and manganese
concentrations in NC soils represent a substantial naturally occurring source in local soil that would account
for the concentrations detected in the groundwater samples. This document presents mean soil metal
background concentrations for each state, including NC, in milligrams per kilogram (mg/kg). The mean NC
concentrations are as follows: cobalt is 15 mg/kg (equivalent to 15,000 ppb), iron is 37,053 mg/kg
(equivalent to 37,053,000 ppb), and manganese is 563 mg/kg (equivalent to 563,000 ppb). While a direct
comparison between sediment sample concentrations and groundwater concentrations cannot be made,
these data show that these metals occur naturally in local stream sediment. Therefore, these metals are
likely to occur in subsurface soil in Guilford County at concentrations that would account for the
concentrations in groundwater at well these locations. Table 2.3 for the “Guidance for Developing
Ecological Soil Screening Levels” is provided in Appendix D.
The United States Geological Survey (USGS) National Geochemical Survey Database is a collection of
stream sediment data from across the US. This database was used to locate 14 stream sediment samples
collected between 1 to 20 miles from the Waste Industries of High Point C&D Landfill. Cobalt concentrations
from the nearby stream sediment samples ranged from non-detect to 24 ppm (equivalent to non-detect to
24,000 ppb), with a mean concentration of 11 ppm (equivalent to 11,000 ppb). Iron concentrations from
the nearby stream sediment samples ranged from 1.1 to 6.0 ppm (equivalent to 1,100 to 6,000 ppb), with
a mean concentration of 3.2 ppm (equivalent to 3,200 ppb). Manganese concentrations from the nearby
stream sediment samples ranged from 175 to 1,790 ppm (equivalent to 175,000 to 1,790,000 ppb), with a
mean concentration of 892 ppm (equivalent to 892,000 ppb). A summary table of the data used from the
National Geochemical Survey Database is provided in Appendix D. While a direct comparison between
sediment sample concentrations and groundwater concentrations cannot be made, these data show that
these metals occur naturally in local stream sediment. Therefore, these metals are likely to occur in
subsurface soil in Guilford County at concentrations that would account for the concentrations in
groundwater at well these locations. Based on the soil and stream sediment metals data presented above,
the cobalt, iron, and manganese concentrations reported in the groundwater samples are within natural
background concentrations. Therefore, future cobalt and manganese results will continue to be monitored,
and no further action is warranted at this time.

October 2017 10 1239-651617.102

5.0 CONCLUSIONS
Benzene was reported at concentrations above the SWSLs and NC 2L Standards in the sample from MW-6
during the July 2017 monitoring event. The facility will continue monitoring in accordance with the
requirements of the Assessment Monitoring Program as outlined in Title 15A NCAC 13B.0545, the Work
Plan, and Addendum. The next groundwater monitoring event is tentatively scheduled for January 2018.
6.0 REFERENCES
Butler, J. Robert and Secor, Donald T., Jr., 1991, The Central Piedmont, in Horton, J. W., Jr., and Zullo,
V.A., eds., The Geology of the Carolinas: The University of Tennessee Press, p. 59 78.
Joyce Engineering, Inc., 2002, Hydrogeologic Report & Groundwater Monitoring Plan; Volume One; Site
Application, Section II; MRR of High Point, LLC Construction and Demolition Debris Landfill, High
Point, North Carolina. Revised January 2003 and March 2003.
NCGS (North Carolina Geologic Survey), 1985. Geologic Map of North Carolina
United States Environmental Protection Agency, November 2003. Guidance for Developing Ecological
Soil Screening Levels.
g:\projects\waste industries\high point\1239651617 - wi high point - nc\phase 102 - 2nd sa wqmr\200 deliverables\252 final reports issued\1239651617.102-001-r-rev0-final 1st
sa 2017 wi-hp wqmr.docx

TABLES
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TOC
Elevation
(ft AMSL)
Date DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
DTW
(ft)
Elevation
(ft AMSL)
10/08/03 17.80 795.37 6.42 748.43 16.00 739.48 5.47 728.29 ------7.52 741.04 8.57 726.66 ------------------------------
01/23/04 18.40 794.77 6.97 747.88 16.58 738.90 6.00 727.76 ------12.95 734.88 10.97 724.26 ------------------------------
07/08/04 19.09 794.08 6.80 748.05 18.71 736.77 6.16 727.60 ------12.39 735.44 10.90 724.33 ------------------------------
01/25/05 19.88 793.29 6.70 748.15 16.95 738.53 5.85 727.91 ------11.65 736.18 11.00 724.23 ------------------------------
07/06/05 19.19 793.98 8.01 746.84 18.91 736.57 7.65 726.11 ------13.10 734.73 10.97 724.26 ------------------------------
01/09/06 23.20 789.97 6.10 748.75 18.25 737.23 5.52 728.24 0.10 734.13 11.89 735.94 9.53 725.70 ------------------------------
07/12/06 19.80 793.37 6.05 748.80 18.35 737.13 5.91 727.85 0.10 734.13 12.44 735.39 10.86 724.37 ------32.70 730.57 ------------------
01/16/07 19.26 793.91 6.41 748.44 16.37 739.11 5.35 728.41 0.10 734.13 11.55 736.28 9.01 726.22 30.85 730.35 31.29 731.98 2.40 760.20 ------------
07/02/07 19.32 793.85 9.00 745.85 19.02 736.46 7.93 725.83 0.10 734.13 13.41 734.42 11.10 724.13 30.90 730.30 31.60 731.67 5.74 756.86 ------------
01/29/08 22.68 790.49 7.01 747.84 18.76 736.72 5.88 727.88 0.10 734.13 12.04 735.79 10.10 725.13 32.95 728.25 33.20 730.07 4.57 758.03 ------------
07/17/08 20.51 792.66 10.35 744.50 19.51 735.97 8.91 724.85 0.13 734.10 13.38 734.45 11.02 724.21 32.36 728.84 33.17 730.10 6.58 756.02 ------------
01/15/09 20.09 793.08 6.49 748.36 17.31 738.17 5.16 728.6 0.00 734.23 11.54 736.29 7.88 727.35 31.56 729.64 31.94 731.33 2.02 760.58 ------------
07/16/09 18.96 794.21 8.12 746.73 18.53 736.95 7.55 726.21 0.00 734.23 12.80 735.03 10.08 725.15 31.01 730.19 30.78 732.49 3.55 759.05 ------------
01/04/10 18.06 795.11 6.43 748.42 16.15 739.33 5.25 728.51 0.00 734.23 11.24 736.59 7.78 727.45 30.25 730.95 34.04 729.23 2.58 760.02 ------------
07/01/10 17.43 795.74 8.03 746.82 18.41 737.07 6.90 726.86 0.00 734.23 12.06 735.77 10.02 725.21 30.09 731.11 ------4.40 758.20 ------------
01/13/11 19.57 793.6 7.35 747.50 18.78 736.70 6.41 727.35 0.07 734.16 13.47 734.36 9.79 725.44 32.41 728.79 32.41 730.86 4.21 758.39 ------------
07/21/11 18.25 794.92 7.83 747.02 18.71 736.77 6.95 726.81 0.00 734.23 12.25 735.58 9.21 726.02 31.20 730.00 31.99 731.28 4.39 758.21 ------------
01/16/12 17.97 795.2 6.52 748.33 16.49 738.99 5.23 728.53 0.00 734.23 11.39 736.44 6.76 728.47 30.75 730.45 31.26 732.01 3.19 759.41 ------------
07/09/12 18.02 795.15 8.62 746.23 18.89 736.59 7.60 726.16 0.00 734.23 13.00 734.83 9.25 725.98 30.58 730.62 31.46 731.81 5.36 757.24 ------------
01/14/13 19.72 793.45 7.29 747.56 18.16 737.32 6.06 727.70 0.00 734.23 12.45 735.38 9.01 726.22 31.54 729.66 32.26 731.01 4.50 758.10 ------------
07/09/13 17.16 796.01 7.38 747.47 17.99 737.49 6.24 727.52 0.00 734.23 12.06 735.77 7.24 727.99 29.69 731.51 30.50 732.77 4.30 758.30 ------------
01/30/14 18.94 794.23 7.02 747.83 17.51 737.97 5.62 728.14 0.00 734.23 11.61 736.22 7.26 727.97 30.92 730.28 31.63 731.64 4.16 758.44 ------------
07/08/14 17.69 795.48 8.24 746.61 18.51 736.97 7.68 726.08 0.00 734.23 12.80 735.03 7.96 727.27 30.26 730.94 31.13 732.14 5.53 757.07 ------------
03/03/15 19.16 794.01 6.68 748.17 17.78 737.70 4.88 728.88 0.00 734.23 11.39 736.44 7.45 727.78 31.03 730.17 31.56 731.71 3.73 758.87 ------------
08/12/15 19.13 794.04 8.12 746.73 19.67 735.81 8.43 725.33 ----12.71 735.12 8.51 726.72 31.51 729.69 ------9.54 753.06 ------------
02/17/16 17.08 796.09 6.40 748.45 15.21 740.27 4.84 728.92 0.00 734.23 10.68 737.15 5.19 730.04 28.78 732.42 29.24 734.03 2.79 759.81 ------------
07/14/16 17.66 795.51 7.34 747.51 18.44 737.04 6.87 726.89 ----12.08 735.75 7.11 728.12 29.40 731.80 ------4.98 757.62 ------------
01/11/17 20.41 792.76 7.15 747.70 23.55 731.93 5.86 727.90 0.00 734.23 11.71 736.12 7.15 728.08 30.36 730.84 ------4.09 758.51 5.76 747.52 6.26 724.31
07/11/17 18.22 794.95 7.55 747.30 17.98 737.50 6.45 727.31 0.00 734.23 11.45 736.38 6.05 729.18 28.41 732.79 29.53 733.74 4.20 758.40 5.96 747.32 7.37 723.20
MEAN 19.06 794.11 7.32 747.53 18.12 737.36 6.37 727.39 0.03 734.20 12.03 735.82 8.89 726.34 30.76 730.44 31.67 731.60 4.40 758.20 5.86 747.42 6.82 723.76
MAXIMUM 23.20 796.09 10.35 748.80 23.55 740.27 8.91 728.92 0.13 734.23 13.47 741.04 11.10 730.04 32.95 732.79 34.04 734.03 9.54 760.58 5.96 747.52 7.37 724.31
MINIMUM 17.08 789.97 6.05 744.50 15.21 731.93 4.84 724.85 0.00 734.10 7.52 734.36 5.19 724.13 28.41 728.25 29.24 729.23 2.02 753.06 5.76 747.32 6.26 723.20
Notes:
1. TOC = top of casing
2. ft AMSL = feet above mean sea level
3. Monitoring well MW-1 is the facility background well.
4. --- = no data available
MW-1
813.17
MW-4DMW-4S MW-7S
735.23747.83
MW-6MW-5
TABLE 1
Summary of Historical Groundwater Elevation Data in Monitoring Wells
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
Guilford County, North Carolina
AMW-1 AMW-2
753.28 730.57
Monitoring Wells
MW-3MW-2
734.23733.76755.48754.85 762.60
MW-8
763.27
MW-7D
761.20
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Gradient
Calculation
Segment
Flow
Direction
Gradient
Segment
Length
(feet)
Gradient
Segment
Elevations
(feet)
Horizontal
Gradient
(i, feet)
Effective
Porosity
(ne)
Hydraulic
Conductivity
(K, cm/sec)
Velocity
(Vgw, feet/year)
790
760
790
740
790
750
Notes: 1. Horizontal velocities based on the modified Darcy equation Vgw = Ki/ne.
2. The geometric mean of K from individual well aquifer tests was used to calculate the hydraulic conductivity (tests
conducted by Golder as part of the Phase 2 investigation not yet submitted).
3. The effective porosity for bedrock was used in velocity calculations.
4. cm/sec = centimeters per second
i 1 0.0416
i 2
i 3
W
SW
S
721
1403
793
0.0356
0.0504
TABLE 2
Summary of Estimated Horizontal Flow Velocities
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
July 2017
Guilford County, North Carolina
6.55
5.61
7.94
0.09
0.09
0.09
1.37E-05
1.37E-05
1.37E-05
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from to from to
MW-1 09/29/03 2 802679.07 1727481.97 809.79 813.17 30.0 779.79 15.0 30.0 794.79 779.79 Bedrock Compliance Well
MW-2 09/30/03 2 802512.12 1726072.14 752.30 754.85 16.5 735.80 6.5 16.5 745.80 735.80 PWR/Bedrock Compliance Well
MW-3 10/02/03 2 802153.76 1725818.69 752.65 755.48 27.0 725.65 12.0 27.0 740.65 725.65 PWR/Bedrock Compliance Well
MW-4S 02/20/02 2 801841.41 1725570.04 731.60 733.76 20.0 711.60 5.0 20.0 726.60 711.60 PWR/Bedrock Compliance Well
MW-4D 02/19/02 2 801847.04 1725576.62 731.88 734.23 80.0 651.88 60.0 80.0 671.88 651.88 Bedrock Water Levels Only
MW-5 02/19/02 2 801517.31 1726103.70 741.16 743.44 20.0 721.16 5.0 20.0 736.16 721.16 Saprolite/PWR/Bedrock Compliance Well
MW-6 12/17/02 2 801625.07 1725754.72 733.53 735.23 15.5 718.03 8.5 15.5 725.03 718.03 PWR/Bedrock Compliance Well
MW-7S 07/13/06 2 801358.30 1726660.50 761.20 763.52 45.0 716.20 30.0 45.0 731.20 716.20 PWR Compliance Well
MW-7D 07/11/06 2 801341.60 1726657.80 761.24 763.27 70.0 691.24 60.0 70.0 701.24 691.24 Bedrock Water Levels Only
MW-8 07/05/06 2 802748.00 1726285.20 760.57 762.60 25.0 735.57 15.0 25.0 745.57 735.57 Bedrock Compliance Well
AMW-1 12/05/16 2 802509.49 1726046.32 750.82 753.28 15.0 735.82 5.0 15.0 745.82 735.82 Bedrock Assessment Well
AMW-2 12/05/16 2 801580.59 1725717.37 728.19 730.57 15.0 713.19 5.0 15.0 723.19 713.19 Bedrock Assessment Well
Notes:
1. All elevations are referenced to mean sea level; depths are referenced to ground surface.
2. AMSL = above mean sea level
3. bgs = below ground surface
4. TOC = top of casing
6. MW-4S and MW-4D were installed as piezometers P-15S and P-15D, respectively, on February 19-20, 2002.
7. MW-5 was installed as piezometer P-12 on February 19, 2002.
8. MW-6 was installed as piezometer P-18 on December 17, 2002.
9. MW-7S and MW-7D were installed as piezometers P-30S and P-30D, respectively, on July 13 and 11, 2006.
10. MW-8 was installed as piezometer P-23 on July 5, 2006.
10. AMW-1 and AMW-2 were installed as assessment monitoring wells on December 5, 2016.
5. PWR = partially weathered rock
Lithology of
Screened IntervalTOC
Well Elevations
ft AMSL
Depth (ft bgs)
Total Depth Drilled
Elevation (ft AMSL)
Casing
Diameter
(inches)
Ground
Surface
Coordinates
Northing Easting
Guilford County, North Carolina
Summary of Well Construction Information
TABLE 3
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
Status
Screened IntervalWell &
Piezometer
Number
Date Installed
Depth
(ft bgs)
Elevation
(ft AMSL)
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MW-1 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2
Antimony ug/L 01/16/07 6 --ND ND ND ND ND ND ND ND ----ND
SWS GPS = 1 ug/L ug/L 07/02/07 6 --ND ND ND ND ND ND ND ND ----ND
EPA MCL = 6 ug/L ug/L 01/30/08 6 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 6 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 6 --ND ND 0.96 J ND ND 0.94 J --------ND
ug/L 07/16/09 6 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 6 --ND ND 0.107 J ND ND 0.0910 J 0.206 J ND ----ND
ug/L 07/01/10 6 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 6 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 6 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 6 --0.307 J 0.620 J ND ND ND ND ND ND ----ND
ug/L 07/09/12 6 --0.257 B 1.30 B ND ND ND ND ND ND ----0.461 J
ug/L 01/14/13 6 --ND 0.672 J ND ND ND ND ND ND ----ND
ug/L 07/09/13 6 --0.221 J 0.767 J ND ND 0.238 J ND ND ND ----ND
ug/L 01/30/14 6 --0.229 J 1.66 J ND ND 0.347 J ND ND ND ----ND
ug/L 07/08/14 6 --ND 1.30 J ND ND ND ND ND ND ----ND
ug/L 03/03/15 6 0.220 ND 0.953 J 0.224 J ND ND ND ND ND ----ND
ug/L 08/12/15 6 0.220 ND ND ND ND ND ND ND ND ----ND
ug/L 02/17/16 6 0.220 0.277 J ND ND ND 0.252 J ND ND ND ----ND
ug/L 07/14/16 6 0.220 ND 0.393 J ND ND ND ND ND ND ----ND
ug/L 01/11/17 6 0.370 ND 0.854 J ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 6 0.370 ND ND ND ND ND ND ND ND ND ND ND
Arsenic ug/L 10/08/03 10 --ND ND ND ND ND ND --------ND
NC 2L = 10 ug/L ug/L 01/23/04 10 --ND ND ND ND ND ND --------ND
EPA MCL = 10 ug/L ug/L 07/08/04 10 --ND ND ND ND ND ND --------ND
ug/L 01/25/05 10 --ND ND ND ND ND ND --------ND
ug/L 07/06/05 10 --ND ND ND ND ND ND --------ND
ug/L 01/09/06 10 --ND ND ND ND ND ND --------ND
ug/L 07/12/06 10 --ND ND ND ND ND ND --------ND J
ug/L 01/16/07 10 --ND 2.5 B 2.8 B 2.4 B ND ND ND ND ----2.4
ug/L 07/02/07 10 --ND ND ND ND 5.1 J ND ND ND ----ND J
ug/L 01/30/08 10 --ND ND ND ND ND ND ND ND ----2.1
ug/L 07/17/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 10 --ND ND ND 2.8 J ND ND --------ND
ug/L 07/16/09 10 --3.56 J ND 4.21 J 4.82 J ND 3.76 J --------ND
ug/L 01/04/10 10 --ND ND ND ND ND ND ND ND ----ND J
ug/L 07/01/10 10 --3.96 B 6.39 B 5.99 B 6.13 B 6.64 B 3.12 B 3.16 B ND ----3.54
ug/L 01/13/11 10 --ND 4.13 J ND 3.35 J 2.82 J 4.74 J 3.81 J ND ----ND
ug/L 07/21/11 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 10 --ND ND ND 3.12 J ND ND ND ND ----ND J
ug/L 07/09/12 10 --3.41 B ND ND 4.41 B ND ND 3.18 B ND ----3.13
ug/L 01/14/13 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 10 --ND ND ND ND 6.93 J ND ND ND ----ND
ug/L 07/08/14 10 --ND 5.83 J ND ND ND ND ND ND ----ND
ug/L 03/03/15 10 5.40 ND ND ND ND ND ND ND ND ----ND
ug/L 08/12/15 10 6.80 ND 8.12 J ND ND ND ND ND ND ----ND
ug/L 02/17/16 10 6.80 ND 6.94 J ND ND ND 9.29 J ND ND ----ND
ug/L 07/14/16 10 6.80 ND 9.80 J ND ND 7.81 J ND ND ND ----ND
ug/L 01/11/17 10 6.80 ND 14.1 ND ND ND ND ND ND ND ND ND
(Dissolved)ug/L 01/11/17 10 6.80 --8.1 J ------------------
ug/L 07/11/17 10 6.80 ND ND ND ND ND ND ND ND ND ND ND
Barium ug/L 10/08/03 500 --ND ND ND ND ND ND --------ND
NC 2L = 700 ug/L ug/L 01/23/04 500 --ND ND ND ND ND ND --------ND
EPA MCL = 2000 ug/L ug/L 07/08/04 500 --ND ND ND ND ND ND --------ND
ug/L 01/25/05 500 --ND ND ND ND ND ND --------ND
ug/L 07/06/05 500 --ND ND ND ND ND ND --------ND
ug/L 01/09/06 500 --ND ND ND ND ND ND --------ND J
ug/L 07/12/06 500 --ND ND ND ND ND ND --------ND J
ug/L 01/16/07 100 --141 187 25.5 J 73.9 J 86.7 J 53.5 J 210 46.4 J ----0.90 J
ug/L 07/02/07 100 --137 338 29.4 J 33.4 J 87.8 J 57.5 J 230 42.4 J ----1.2
ug/L 01/30/08 100 --100 190 46.9 J 66.6 J 110 82.2 J 143 66.8 J ----0.30
ug/L 07/17/08 100 --102 279 36.5 J 52.5 J 92.8 J 65.1 J 108 49.2 J ----ND
ug/L 01/14/09 100 --101 152 38.3 J 79.7 J 68.0 J 93.9 J --------ND J
ug/L 07/16/09 100 --132 252 39.1 J 65.9 J 71.6 J 99.0 J --------ND
ug/L 01/04/10 100 --107 188 37.4 J 117 51.7 J 111 98.5 J 37.3 J ----0.552
ug/L 07/01/10 100 --117 156 42.2 J 45.4 J 72.6 J 153 107 23.3 J ----ND
ug/L 01/13/11 100 --100 193 35.0 J 69.4 J 70.8 J 117 98.5 J 26.6 J ----ND
ug/L 07/21/11 100 --125 273 33.7 J 87.7 J 75.1 J 140 115 30.1 J ----ND
ug/L 01/16/12 100 --108 197 34.9 J 114 58.2 J 161 118 36.3 J ----ND J
ug/L 07/09/12 100 --115 338 31.5 J 48.3 J 67.5 J 223 122 40.0 J ----ND J
ug/L 01/14/13 100 --125 333 47.2 J 74.0 J 66.4 J 162 142 50.2 J ----1.46 J
ug/L 07/09/13 100 --88.7 J 308 36.9 J 46.2 J 60.3 J 126 137 61.9 J ----1.37 J
ug/L 01/30/14 100 --78.8 J 297 44.6 J 88.7 J 59.5 J 146 154 79.7 J ----1.08 J
ug/L 07/08/14 100 --73.8 J 542 40.3 J 53.5 J 57.3 J 174 156 69.6 J ----1.13 J
ug/L 03/03/15 100 1.00 62.3 J 427 42.5 J 51.4 J 49.5 J 192 181 86.0 J ----3.04
ug/L 08/12/15 100 1.00 62.7 J 649 35.3 J 74.7 J 61.8 J 203 181 47.6 J ----2.33
ug/L 02/17/16 100 1.00 53.3 J 428 33.4 J 96.6 J 46.6 J 269 194 57.0 J ----ND
ug/L 07/14/16 100 1.00 51.1 J 488 43.0 J 67.1 J 59.1 J 319 192 62.8 J ----1.51 J
ug/L 01/11/17 100 1.00 53.0 J 726 42.7 J 76.7 J 75.4 J 378 215 77.4 J 113 160 ND
(Dissolved)ug/L 01/11/17 100 1.00 --337 ------------------
ug/L 07/11/17 100 1.00 49.8 J 528 38.8 63.6 53.2 414 218 94.6 80.9 177 1.39 J
Beryllium ug/L 01/16/07 1 --ND ND ND ND ND ND ND ND ----ND
SWS GPS = 4 ug/L ug/L 07/02/07 1 --ND ND ND ND ND ND ND ND ----ND
EPA MCL = 4 ug/L ug/L 01/30/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 1 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 1 --ND 0.135 J ND ND 0.0900 J ND --------ND
ug/L 01/04/10 1 --ND 0.674 J ND ND ND ND ND ND ----ND
ug/L 07/01/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 1 --ND ND ND 0.176 J ND ND ND ND ----ND
ug/L 07/09/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 1 0.100 ND ND ND ND ND ND ND ND ----ND
ug/L 08/12/15 1 0.100 ND ND ND ND ND ND ND ND ----ND
ug/L 02/17/16 1 0.100 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 1 0.100 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 1 0.100 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 1 0.130 ND ND ND ND ND ND ND ND ND ND ND
Cadmium ug/L 10/08/03 1 --ND ND ND ND ND ND --------ND
NC 2L = 2 ug/L ug/L 01/23/04 1 --ND ND ND ND ND ND --------ND
EPA MCL = 5 ug/L ug/L 07/08/04 1 --ND ND ND ND ND ND --------ND
ug/L 01/25/05 1 --ND ND ND ND ND ND --------ND
ug/L 07/06/05 1 --ND ND ND ND ND ND --------ND
ug/L 01/09/06 1 --ND ND ND ND ND ND --------ND
ug/L 07/12/06 1 --ND ND ND ND ND ND --------ND
ug/L 01/16/07 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 1 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 1 --0.350 B 0.390 B 0.310 B 0.200 B 0.111 B 0.293 B --------1.19
ug/L 01/04/10 1 --0.299 J 0.770 J 0.269 J ND ND 0.296 J 0.153 J 0.344 J ----ND
ug/L 07/01/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 1 0.360 ND ND ND ND ND ND ND ND ----ND
ug/L 08/12/15 1 0.360 ND ND ND ND ND ND ND ND ----ND
ug/L 02/17/16 1 0.360 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 1 0.360 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 1 0.360 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 1 0.360 ND ND ND ND ND ND ND ND ND ND ND
Parameter Sample
Date
Reporting
Units
TABLE 4
Guilford County, North Carolina
Summary of Detected Constituents in Groundwater
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
UpgradientSWS
Reporting
Limit
BlanksMDL
Downgradient
September 2017 2 of 6 1239-651617.101
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MW-1 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2ParameterSample
Date
Reporting
Units
TABLE 4
Guilford County, North Carolina
Summary of Detected Constituents in Groundwater
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
UpgradientSWS
Reporting
Limit
BlanksMDL
Downgradient
Chromium ug/L 10/08/03 10 --ND ND ND ND ND ND --------ND
NC 2L = 10 ug/L ug/L 01/23/04 10 --ND ND ND ND ND ND --------ND
EPA MCL = 100 ug/L ug/L 07/08/04 10 --ND ND ND ND ND ND --------ND
ug/L 01/25/05 10 --ND ND ND ND ND ND --------ND
ug/L 07/06/05 10 --ND ND ND ND ND ND --------ND
ug/L 01/09/06 10 --ND ND ND ND ND ND --------ND
ug/L 07/12/06 10 --ND ND ND ND ND ND --------ND
ug/L 01/16/07 10 --2.2 J ND ND ND ND ND 17.0 ND ----ND
ug/L 07/02/07 10 --ND ND ND ND ND ND 19.0 ND ----ND
ug/L 01/30/08 10 --ND ND ND ND ND ND ND ND ----ND J
ug/L 07/17/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 10 --ND ND 5.3 J 4.9 J ND ND --------ND
ug/L 07/16/09 10 --0.772 J 4.78 J 1.01 J 0.793 J 0.722 J 0.736 J --------ND
ug/L 01/04/10 10 --ND 4.22 J 2.58 J ND ND ND ND ND ----ND
ug/L 07/01/10 10 --6.26 B ND 6.00 B ND ND ND 1.29 B ND ----1.80 J
ug/L 01/13/11 10 --ND ND ND ND ND ND 1.26 J ND ----ND
ug/L 07/21/11 10 --ND 3.62 J ND 14.3 (1.06 J)ND 1.95 J 2.46 J ND ----ND
ug/L 01/16/12 10 --ND 3.77 J ND 1.70 J ND 4.53 J ND ND ----ND
ug/L 07/09/12 10 --ND 6.97 J ND ND ND 5.41 J ND ND ----ND J
ug/L 01/14/13 10 --ND 3.73 B 1.19 B 1.03 B 1.08 B 2.77 B 1.57 B 1.32 B ----1.40
ug/L 07/09/13 10 --ND ND ND ND ND 1.78 J ND ND ----ND
ug/L 01/30/14 10 --ND ND ND ND ND 2.42 J ND 2.08 J ----ND
ug/L 07/08/14 10 --ND 3.68 J 2.83 J 10.9 (ND)ND 3.76 J 1.44 J ND ----ND
ug/L 03/03/15 10 1.40 ND 6.93 B ND 1.54 B ND 5.74 B 1.43 B 2.11 B ----1.66
ug/L 08/12/15 10 1.40 ND 1.66 J ND ND ND 3.94 J ND ND ----ND
ug/L 02/17/16 10 1.40 ND 5.24 J 6.61 J 1.40 J ND 4.34 J ND ND ----ND
ug/L 07/14/16 10 1.40 ND ND ND ND ND 1.70 J ND ND ----ND
ug/L 01/11/17 10 1.40 ND ND ND ND ND 2.10 J ND ND ND ND ND
ug/L 07/11/17 10 1.40 ND 1.53 J ND ND ND 4.01 J ND ND ND 1.94 J ND
Cobalt ug/L 01/16/07 10 --ND 14.6 ND ND 3.0 J 5.9 J 3.9 J ND ----ND
SWS GPS = 1 ug/L ug/L 07/02/07 10 --ND 27.4 ND ND 4.7 J ND 6.0 J ND ----ND
No EPA MCL ug/L 01/30/08 10 --ND 11.6 ND ND 5.6 J ND ND ND ----ND
ug/L 07/17/08 10 --ND 27.6 ND ND 1.4 J ND ND ND ----ND
ug/L 01/14/09 10 --ND 9.4 J ND 1.2 J 4.1 J 13.0 --------ND
ug/L 07/16/09 10 --ND 26.5 ND 1.65 J 3.30 J 5.05 J --------ND
ug/L 01/04/10 10 --ND 17.8 ND ND 3.90 J 9.94 J ND ND ----ND
ug/L 07/01/10 10 --ND 14.4 ND ND 3.65 J 24.0 ND ND ----ND
ug/L 01/13/11 10 --ND 15.7 ND ND 5.50 J 11.0 ND ND ----ND
ug/L 07/21/11 10 --ND 19.7 ND 1.27 J 5.87 J 17.0 ND ND ----ND
ug/L 01/16/12 10 --ND 14.3 ND ND 3.61 J 24.8 ND ND ----ND
ug/L 07/09/12 10 --ND 18.4 ND 1.43 J 6.03 J 24.8 ND ND ----ND
ug/L 01/14/13 10 --ND 13.5 ND 1.74 J 3.55 J 18.8 ND ND ----ND
ug/L 07/09/13 10 --ND 13.5 ND 1.26 J 2.54 J 9.81 J ND 3.33 J ----ND
ug/L 01/30/14 10 --ND 13.0 ND ND 2.39 J 14.8 ND 4.60 J ----ND
ug/L 07/08/14 10 --ND 23.4 ND 1.83 J 1.87 J 21.0 ND 4.34 J ----ND
ug/L 03/03/15 10 1.10 ND 15.2 ND ND 2.20 J 25.3 ND 4.31 J ----ND
ug/L 08/12/15 10 1.10 1.18 J 19.4 ND 3.09 J 2.34 J 20.8 ND 3.55 J ----ND
ug/L 02/17/16 10 1.10 1.14 J 14.9 ND 1.59 J 1.70 J 14.3 ND 2.83 J ----ND J
ug/L 07/14/16 10 1.10 ND 15.6 ND ND ND 17.1 ND 4.28 J ----ND
ug/L 01/11/17 10 1.10 ND 17.9 ND ND 3.89 J 14.7 ND 4.39 J 7.41 J 7.90 J ND
ug/L 07/11/17 10 1.10 ND 10.7 ND ND ND 10.4 ND 6.25 J 5.03 J 11.1 ND
(Dissolved)ug/L 07/11/17 10 1.10 ------------------10.4 --
Copper ug/L 01/16/07 10 --14.5 ND ND 4.60 J ND ND 12.3 ND ----ND
NC 2L = 1000 ug/L ug/L 07/02/07 10 --8.8 J ND ND ND ND ND 16.3 3.4 J ----ND
EPA MCL = 1300 ug/L#ug/L 01/30/08 10 --3.00 J ND ND 1.90 J ND ND 2.70 J 5.30 J ----ND J
ug/L 07/17/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 10 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 10 --ND ND ND ND ND ND --------6.42
ug/L 01/04/10 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 10 --ND ND ND 2.72 B ND ND ND ND ----1.65
ug/L 01/16/12 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 10 --ND ND ND ND ND ND ND ND ----ND J
ug/L 01/14/13 10 --ND ND 1.67 J ND ND ND ND ND ----ND
ug/L 07/09/13 10 --1.63 J ND ND 1.93 J ND ND ND ND ----ND
ug/L 01/30/14 10 --ND ND ND ND ND ND ND 2.73 J ----ND
ug/L 07/08/14 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 10 1.60 4.20 J ND ND 2.18 J ND ND ND ND ----ND
ug/L 08/12/15 10 1.60 ND ND ND ND ND 6.76 J ND 20.3 ----ND
ug/L 02/17/16 10 1.60 ND ND ND ND ND ND ND 3.28 B ----3.66
ug/L 07/14/16 10 1.60 ND ND ND ND ND ND ND 1.99 B ----3.50 J
ug/L 01/11/17 10 1.60 4.48 B 2.78 B 3.45 B 3.26 B 1.97 B 2.25 B 3.25 B 6.10 B 3.40 B 3.28 B 6.33 J
ug/L 07/11/17 10 1.60 ND ND ND ND ND ND ND ND ND ND ND
Lead ug/L 10/08/03 10 --ND ND ND ND ND ND --------ND
NC 2L = 15 ug/L ug/L 01/23/04 10 --ND ND ND ND ND ND --------ND
EPA MCL = 15 ug/L#ug/L 07/08/04 10 --ND ND ND ND ND ND --------ND
ug/L 01/25/05 10 --ND ND ND ND ND ND --------ND
ug/L 07/06/05 10 --ND ND ND ND ND ND --------ND
ug/L 01/09/06 10 --ND ND ND ND ND ND --------ND J
ug/L 07/12/06 10 --ND ND ND ND ND ND --------ND
ug/L 01/16/07 10 --ND ND ND ND ND 3.1 J 4.5 J ND ----ND
ug/L 07/02/07 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 10 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 10 --ND 3.10 J ND ND ND ND --------ND
ug/L 01/04/10 10 --ND 4.04 B 1.46 B ND 2.76 B 2.08 B ND ND ----1.24
ug/L 07/01/10 10 --ND 2.61 J ND ND 2.84 J ND ND ND ----ND
ug/L 01/13/11 10 --ND 4.02 J ND ND ND ND ND ND ----ND
ug/L 07/21/11 10 --ND 3.08 J ND ND ND ND ND ND ----ND
ug/L 01/16/12 10 --ND 4.54 J ND 2.45 J 6.10 J ND ND 1.90 J ----ND
ug/L 07/09/12 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/13 10 --ND 4.05 J ND ND ND ND ND ND ----ND
ug/L 07/09/13 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 10 --ND 3.42 J ND ND 4.35 J ND ND ND ----ND
ug/L 07/08/14 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 10 2.10 ND ND ND ND ND ND ND ND ----ND
ug/L 08/12/15 10 3.10 ND 5.51 J ND ND ND 3.62 J ND ND ----ND
ug/L 02/17/16 10 3.10 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 10 3.10 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 10 3.10 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 10 3.10 ND 5.28 J ND ND ND ND ND ND ND ND ND
Nickel ug/L 01/16/07 50 --3.8 J ND ND ND ND ND 17.2 J ND ----ND
NC 2L = 100 ug/L ug/L 07/02/07 50 --ND 3.0 J ND ND ND ND 19.0 J ND ----ND
No EPA MCL ug/L 01/30/08 50 --2.5 J 3.6 J 2.4 J 3.7 J 6.5 J ND 6.0 J 3.3 J ----ND
ug/L 07/17/08 50 --2.1 J ND ND ND 3.8 J ND 2.3 J ND ----ND
ug/L 01/14/09 50 --2.4 J ND 5.1 J 5.3 J ND ND --------ND
ug/L 07/16/09 50 --0.790 B 4.11 B 1.47 B 0.988 B 1.04 B 1.05 B --------3.80
ug/L 01/04/10 50 --ND 2.59 J ND ND 3.20 J ND ND ND ----ND
ug/L 07/01/10 50 --ND ND ND ND ND 2.29 J ND ND ----ND
ug/L 01/13/11 50 --ND ND ND ND ND 5.20 J ND ND ----ND
ug/L 07/21/11 50 --ND ND ND 2.44 J ND 5.56 J ND ND ----ND
ug/L 01/16/12 50 --ND ND ND ND ND 2.77 J ND ND ----ND
ug/L 07/09/12 50 --ND ND ND ND ND 6.24 J ND ND ----ND
ug/L 01/14/13 50 --ND ND 2.05 J ND 4.29 J 3.86 J ND ND ----ND
ug/L 07/09/13 50 --ND 2.37 J ND ND ND 4.34 J 2.81 J 3.27 J ----ND
ug/L 01/30/14 50 --ND ND ND 1.86 J ND 5.05 J ND 5.44 J ----ND
ug/L 07/08/14 50 --ND 2.85 J 1.86 J 6.10 J ND 4.71 J ND 3.36 J ----ND
ug/L 03/03/15 50 1.80 ND 3.01 J ND ND ND 6.41 J ND 3.19 J ----ND
ug/L 08/12/15 50 1.80 ND 2.73 J ND ND ND 5.84 J ND 3.37 J ----ND
ug/L 02/17/16 50 1.80 ND ND 2.27 J ND ND 3.23 J ND 5.44 J ----ND
ug/L 07/14/16 50 2.20 ND ND ND ND ND 4.27 B 2.20 B 3.63 B ----11.9
ug/L 01/11/17 50 2.20 ND ND ND ND ND 4.40 J 3.14 J 4.87 J ND 2.57 J ND
ug/L 07/11/17 50 2.20 ND ND ND ND ND ND ND ND ND 2.60 J ND
September 2017 3 of 6 1239-651617.101
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MW-1 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2ParameterSample
Date
Reporting
Units
TABLE 4
Guilford County, North Carolina
Summary of Detected Constituents in Groundwater
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
UpgradientSWS
Reporting
Limit
BlanksMDL
Downgradient
Selenium ug/L 10/08/03 20 --ND ND ND ND ND ND --------ND
NC 2L = 20 ug/L ug/L 01/23/04 20 --ND ND ND ND ND ND --------ND
EPA MCL = 50 ug/L ug/L 07/08/04 20 --ND ND ND ND ND ND --------ND
ug/L 01/25/05 20 --ND ND ND ND ND ND --------ND
ug/L 07/06/05 20 --ND ND ND ND ND ND --------ND
ug/L 01/09/06 20 --ND ND ND ND ND ND --------ND
ug/L 07/12/06 20 --ND ND ND ND ND ND --------ND
ug/L 01/16/07 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 10 --ND ND ND ND ND 2.0 J ND ND ----ND
ug/L 07/17/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 10 --ND ND 4.0 J ND ND 3.1 J --------ND
ug/L 07/16/09 10 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 10 --ND 1.59 J ND ND ND 2.05 J ND ND ----ND
ug/L 07/01/10 10 --ND 2.72 J ND ND ND 3.59 J ND ND ----ND
ug/L 01/13/11 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/13 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 10 0.910 ND 1.55 J ND ND ND ND ND ND ----ND
ug/L 08/12/15 10 5.00 ND ND ND ND ND ND ND ND ----ND
ug/L 02/17/16 10 5.00 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 10 6.20 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 10 6.20 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 10 6.20 ND ND ND ND ND ND ND ND ND ND ND
Silver ug/L 10/08/03 10 --ND ND ND ND ND ND --------ND
SWS GPS = 20 ug/L ug/L 01/23/04 10 --ND ND ND ND ND ND --------ND
EPA MCL = 100 ug/L ug/L 07/08/04 10 --ND ND ND ND ND ND --------ND
ug/L 01/25/05 10 --ND ND ND ND ND ND --------ND
ug/L 07/06/05 10 --ND ND ND ND ND ND --------ND
ug/L 01/09/06 10 --ND ND ND ND ND ND --------ND
ug/L 07/12/06 10 --ND ND ND ND ND ND --------ND
ug/L 01/16/07 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 10 --ND ND ND ND 2.5 J ND ND 2.0 J ----ND
ug/L 01/30/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 10 --ND ND ND ND ND ND --------ND J
ug/L 07/16/09 10 --ND 3.75 J 0.990 J ND 1.70 J ND --------ND
ug/L 01/04/10 10 --ND 1.92 J ND ND 1.09 J ND ND ND ----ND
ug/L 07/01/10 10 --ND 2.66 J ND ND ND ND ND ND ----ND
ug/L 01/13/11 10 --ND 3.19 J ND ND ND ND ND ND ----ND
ug/L 07/21/11 10 --3.59 J 2.28 J ND ND ND ND ND ND ----ND
ug/L 01/16/12 10 --ND 2.37 J ND 3.30 J ND ND ND ND ----ND
ug/L 07/09/12 10 --ND 2.38 J ND ND ND 2.88 J ND ND ----ND
ug/L 01/14/13 10 --ND 3.43 J 3.86 J ND ND ND ND ND ----ND
ug/L 07/09/13 10 --2.69 J 4.48 J ND 3.36 J 1.90 J 2.31 J 4.86 J 6.81 J ----ND
ug/L 01/30/14 10 --ND 2.95 J ND ND ND ND ND 2.21 J ----ND
ug/L 07/08/14 10 --ND 5.41 J ND ND ND ND ND 2.58 J ----ND
ug/L 03/03/15 10 1.90 ND 7.35 J ND ND ND ND ND ND ----ND
ug/L 08/12/15 10 1.90 2.57 B 9.84 B ND 4.90 B 5.27 B 10.6 B 2.14 B 4.53 B ----2.59
ug/L 02/17/16 10 1.90 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 10 1.90 ND 4.41 J ND ND ND ND ND ND ----ND
ug/L 01/11/17 10 1.90 ND 6.32 J ND ND ND ND ND 2.06 J ND ND ND
ug/L 07/11/17 10 1.90 5.30 J ND ND ND ND 3.78 J ND 2.59 J 3.30 J 2.57 J ND
Thallium ug/L 01/16/07 5.5 --ND 0.048 J ND ND ND ND ND ND ----ND
SWS GPS = 0.28 ug/L ug/L 07/02/07 5.5 --0.043 J 0.097 J ND ND ND ND ND ND ----ND
EPA MCL = 2 ug/L ug/L 01/30/08 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 5.5 --ND 0.046 J ND ND ND ND ND ND ----ND
ug/L 01/14/09 5.5 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 5.5 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/13 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 5.5 --ND ND ND ND 0.489 J ND ND ND ----ND
ug/L 07/08/14 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 5.5 0.110 ND ND ND ND ND ND ND ND ----ND
ug/L 08/12/15 5.5 0.110 ND ND ND ND ND ND ND ND ----ND
ug/L 02/17/16 5.5 0.110 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 5.5 0.110 0.575 J 0.211 J 0.502 J 0.482 J 0.414 J 0.169 J 0.303 J 0.345 J ----ND
ug/L 01/11/17 5.5 0.110 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 5.5 0.110 0.131 J ND 0.118 J ND ND ND ND ND 0.143 J 0.148 J ND
Vanadium ug/L 01/16/07 25 --7.5 J ND ND 4.4 J ND ND 34.4 ND ----ND
SWS GPS = 0.3 ug/L ug/L 07/02/07 25 --5.9 J ND 1.9 J 2.3 J ND ND 44.3 2.6 J ----ND
No EPA MCL ug/L 01/30/08 25 --3.7 J ND ND 3.6 J ND ND 13.3 J ND ----ND
ug/L 07/17/08 25 --2.5 J ND ND 2.9 J ND ND 11.4 J ND ----ND
ug/L 01/14/09 25 --1.7 J ND ND 6.8 J ND ND --------ND
ug/L 07/16/09 25 --2.16 J ND 1.08 J 3.75 J 1.59 J 0.965 J --------ND
ug/L 01/04/10 25 --1.91 J ND 0.544 J 3.00 J ND ND 10.1 J 2.43 J ----ND J
ug/L 07/01/10 25 --ND ND ND ND ND ND 10.5 J ND ----ND
ug/L 01/13/11 25 --1.80 J ND ND 2.32 J ND ND 10.2 J ND ----ND
ug/L 07/21/11 25 --ND ND ND 24.6 J ND ND 9.72 J ND ----ND
ug/L 01/16/12 25 --1.73 J ND ND 42.6 ND ND 9.90 J ND ----ND J
ug/L 07/09/12 25 --1.55 J ND ND 2.05 J ND ND 9.46 J ND ----ND
ug/L 01/14/13 25 --1.81 J ND ND ND ND ND 10.6 J ND ----ND
ug/L 07/09/13 25 --ND ND ND 2.32 J ND ND 9.62 J ND ----ND
ug/L 01/30/14 25 --ND ND ND 6.97 J ND ND 9.31 J ND ----ND
ug/L 07/08/14 25 --ND ND ND ND ND ND 9.21 J ND ----ND
ug/L 03/03/15 25 1.40 ND ND ND 6.10 J ND ND 9.36 J ND ----ND
ug/L 08/12/15 25 1.40 ND ND ND 4.78 J ND 1.59 J 9.20 J ND ----ND
ug/L 02/17/16 25 1.40 ND ND ND 11.2 J ND ND 9.15 J ND ----ND
ug/L 07/14/16 25 1.40 ND ND ND 1.98 J ND 1.46 J 8.95 J ND ----ND
ug/L 01/11/17 25 1.40 ND ND ND 7.20 J ND ND 9.24 J ND ND ND ND
ug/L 07/11/17 25 1.40 ND 2.79 J ND 1.69 J 1.89 J 2.10 J 9.77 J ND ND ND ND
Zinc ug/L 01/16/07 10 --25.7 B 4.0 B 6.5 B 23.4 B 9.1 B 11.0 B 48.1 B 7.4 B ----10.0
NC 2L = 1000 ug/L ug/L 07/02/07 10 --ND 28.0 ND ND ND 10.1 41.1 3.9 J ----ND
EPA MCL = 5000 ug/L*ug/L 01/30/08 10 --2.3 B 1.8 B 2.9 B 3.8 B 3.0 B 4.9 B 9.1 J 4.4 B ----1.6
ug/L 07/17/08 10 --ND ND ND ND ND 4.2 J ND ND ----ND
ug/L 01/14/09 10 --ND 3.8 J ND ND ND ND --------ND
ug/L 07/16/09 10 --6.77 B 4.89 B 5.55 B 7.01 B 5.28 B 3.44 B --------20.5
ug/L 01/04/10 10 --1.72 B 6.20 B 2.24 B 2.35 B 2.57 B 3.88 B ND 2.98 B ----2.25
ug/L 07/01/10 10 --ND ND ND ND 6.66 J 7.04 J 4.90 J ND ----ND
ug/L 01/13/11 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 10 --ND ND ND 4.06 J ND 5.52 J ND ND ----ND
ug/L 01/16/12 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 10 --ND ND ND ND ND 5.67 J ND ND ----ND
ug/L 01/14/13 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 10 --ND ND ND ND ND 4.35 J ND 3.98 J ----ND
ug/L 01/30/14 10 --3.97 J 4.83 J 4.13 J 5.51 J ND 5.86 J ND 7.30 J ----ND
ug/L 07/08/14 10 --ND ND 3.86 J ND 9.69 J ND ND 5.50 J ----ND
ug/L 03/03/15 10 3.80 ND ND ND 4.77 J ND ND ND ND ----ND
ug/L 08/12/15 10 3.80 ND 4.12 J ND 8.46 J ND 15.8 ND 9.95 J ----ND
ug/L 02/17/16 10 3.80 60.0 5.54 J ND 25.8 6.06 J ND ND 4.75 J ----ND
ug/L 07/14/16 10 4.40 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 10 4.40 ND ND ND ND ND ND ND 6.11 J ND ND ND
ug/L 07/11/17 10 4.40 ND 5.01 J ND ND ND ND ND ND ND ND ND
September 2017 4 of 6 1239-651617.101
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MW-1 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2ParameterSample
Date
Reporting
Units
TABLE 4
Guilford County, North Carolina
Summary of Detected Constituents in Groundwater
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
UpgradientSWS
Reporting
Limit
BlanksMDL
Downgradient
Iron ug/L 01/16/07 ----2530 3410 80 J 1020 9860 700 16400 680 ------
NC 2L = 300 ug/L ug/L 07/02/07 300 --1510 18600 46 J 314 4960 592 19500 497 ------
EPA MCL = 300 ug/L*ug/L 01/30/08 300 --533 327 31 J 2220 21100 106 J 3320 1110 ----ND
ug/L 07/17/08 300 --161 J 10300 ND 1730 8620 ND 448 69 J ----ND
ug/L 01/14/09 300 --65 J 2740 26 J 3300 28800 1110 --------ND
ug/L 07/16/09 300 --84.2 J 18000 ND 2490 7570 642 --------ND
ug/L 01/04/10 300 --155 J 10700 90.1 J 1980 33600 1750 58.6 J 228 J ----ND
ug/L 07/01/10 300 --42.7 J 21100 63.2 J 1050 42000 4290 132 J ND ----ND
ug/L 01/13/11 300 --30.4 J 29100 36.4 J 803 4120 1170 269 J 90.9 J ----ND
ug/L 07/21/11 300 --44.5 J 35900 47.1 J 21100 37800 1900 85.7 J 41.0 J ------J
ug/L 01/16/12 300 --133 J 15700 37.9 J 11300 45400 5270 90.1 J 27.6 J ----ND
ug/L 07/09/12 300 --32.7 J 44700 28.2 J 1800 17000 7570 43.8 J 49.2 J ----ND
ug/L 01/14/13 300 --50.4 J 31300 72.9 J 1440 5230 3040 143 J 148 J ----ND
ug/L 07/09/13 300 --76.6 J 27200 39.0 J 1690 41300 2080 79.4 J 325 ----ND
ug/L 01/30/14 300 --87.8 J 24500 208 J 5330 56300 2110 49.6 J 2570 ----ND J
ug/L 07/08/14 300 --ND 56100 65.3 J 1400 35300 4260 61.3 J 3900 ----ND
ug/L 03/03/15 300 22.0 61.4 B 30800 38.2 B 1860 91700 3660 ND 6600 ----73.8
ug/L 08/12/15 300 22.0 ND 59100 47.7 J 1630 46200 9550 28.6 J 876 ----ND J
ug/L 02/17/16 300 22.0 51.8 J 21200 100 J 2440 39400 5840 38.4 J 1020 ----ND
ug/L 07/14/16 300 22.0 ND 27800 48.8 B 907 35500 6010 38.4 B 4620 ----23.3 J
ug/L 01/11/17 300 22.0 61.7 J 46000 67.1 J 4860 57000 4240 ND 2090 1590 525 ND
ug/L 07/11/17 300 22.0 29.7 J 33200 62.6 J 1160 44100 7870 ND 3940 1290 2590 ND
(Dissolved)ug/L 07/11/17 300 22.0 ------------------26.7 J --
Manganese ug/L 01/16/07 ----50.6 6160 4.7 J 39.1 2620 361 205 204 ------J
NC 2L = 50 ug/L ug/L 07/02/07 50 --30.6 J 9540 4.2 J 29.5 J 1040 21.3 J 229 244 ------
EPA MCL = 50 ug/L*ug/L 01/30/08 50 --16.1 J 7760 8.0 J 27.3 J 4340 12.6 J 64.8 208 ----ND
ug/L 07/17/08 50 --26.7 J 25900 14.1 J 35.8 J 1080 10.5 J 11.1 J 94.2 ----ND
ug/L 01/14/09 50 --3.5 J 10400 10.7 J 24.4 J 3450 718 --------ND J
ug/L 07/16/09 50 --15.7 J 25200 16.8 J 76.9 2480 340 --------ND
ug/L 01/04/10 50 --5.12 J 13200 21.9 J 36.3 J 3200 707 2.50 J 77.3 ----ND
ug/L 07/01/10 50 --8.43 B 15300 21.0 J 42.3 J 3420 1850 6.80 B 85.1 ----2.75
ug/L 01/13/11 50 --6.90 J 20100 20.9 J 17.7 J 3290 2490 9.13 J 73.4 ----ND
ug/L 07/21/11 50 --6.10 J 19600 19.0 J 54.5 3020 2470 3.62 J 551 ------J
ug/L 01/16/12 50 --5.41 J 8520 22.4 J 37.6 J 3280 2440 ND 73.1 ----ND
ug/L 07/09/12 50 --3.82 J 17900 12.1 J 54.2 1890 3530 1.79 J 1160 ----ND
ug/L 01/14/13 50 --4.14 B 14300 24.2 J 92.2 2280 2720 4.32 B 183 ----1.28
ug/L 07/09/13 50 --18.1 J 19000 16.9 J 62.6 2290 1790 6.22 J 1840 ----ND
ug/L 01/30/14 50 --7.75 J 16800 36.8 J 37.8 J 3120 2580 2.73 J 2090 ----ND
ug/L 07/08/14 50 --5.04 B 24900 16.4 J 59.0 2060 2640 8.60 B 2010 ----1.97
ug/L 03/03/15 50 1.10 6.00 J 17300 16.1 J 20.4 J 2480 3120 ND 2480 ----ND
ug/L 08/12/15 50 1.10 4.21 B 20800 14.3 J 76.4 2410 3030 2.08 B 1670 ----1.18
ug/L 02/17/16 50 1.10 7.36 J 16800 15.8 J 53.1 2240 3530 2.26 B 2040 ----1.19
ug/L 07/14/16 50 1.10 5.24 B 18100 12.9 J 51.5 1970 3490 4.93 B 2650 ----1.82 J
ug/L 01/11/17 50 1.10 5.30 J 24800 17.6 J 34.6 J 2860 4090 1.44 J 4820 2980 1150 ND
ug/L 07/11/17 50 1.10 7.16 J 18200 14.6 J 44.6 J 1940 3760 1.58 J 8540 2930 1670 ND
(Dissolved)ug/L 07/11/17 50 1.10 --------------7840 2960 1570 --
Acetone ug/L 01/09/06 100 --ND ND ND ND ND ND --------ND
NC 2L = 6000 ug/L ug/L 07/12/06 100 --ND ND ND ND ND ND --------ND
No EPA MCL ug/L 01/16/07 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 100 --ND ND ND ND ND ND ND ND ----1.2
ug/L 01/30/08 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 100 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 100 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 100 --ND ND ND ND ND ND ND ND ----7.1
ug/L 07/01/10 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 100 --ND ND ND ND ND 5.6 J ND ND ----ND
ug/L 01/14/13 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 100 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 100 --ND 9.8 J ND ND 1.3 J 2.1 J ND 1.9 J ----ND
ug/L 03/03/15 100 1.2 ND 4.4 J ND ND 2.5 J ND ND ND ----ND
ug/L 08/12/15 100 1.2 ND ND ND ND ND 11 J ND ND ----ND
ug/L 02/17/16 100 1.2 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 100 10 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 100 10 ND ND ND ND ND ND ND ND ND ND 11 J
ug/L 07/11/17 100 10 ND ND ND ND ND 16 J ND ND ND ND ND
Benzene ug/L 01/09/06 5 --ND ND ND ND ND ND --------ND
NC 2L = 1 ug/L ug/L 07/12/06 5 --ND ND ND ND ND ND --------ND
EPA MCL = 5 ug/L ug/L 01/16/07 3 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 1 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 1 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 1 --ND 0.78 J ND ND ND ND ND ND ----ND
ug/L 01/14/13 1 --ND 0.72 J ND ND ND ND ND ND ----ND
ug/L 07/09/13 1 --ND 0.57 J ND ND ND ND ND ND ----ND
ug/L 01/30/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 1 --ND 1.6 ND ND ND ND ND ND ----ND
ug/L 03/03/15 1 0.15 ND 0.79 J ND ND ND ND ND 0.49 J ----ND
ug/L 08/12/15 1 0.15 ND 2.0 ND ND ND ND ND ND ----ND
Verification Event ug/L 09/28/15 1 0.15 --2.6 ----------------ND
ug/L 02/17/16 1 0.15 ND 0.98 J ND ND ND 0.63 J ND ND ----ND
ug/L 07/14/16 1 0.15 ND 1.7 ND ND ND 1.0 ND 0.44 J ----ND
Verification Event ug/L 08/04/16 1 0.15 --1.0 ------1.1 --------ND
ug/L 01/11/17 1 0.15 ND ND ND ND ND 0.61 J ND ND ND ND ND
ug/L 07/11/17 1 0.15 ND ND ND ND ND 1.7 ND ND ND ND ND
1,2-Dichloroethane ug/L 01/09/06 5 --ND ND ND ND ND ND --------ND
NC 2L = 0.4 ug/L ug/L 07/12/06 5 --ND ND ND ND ND ND --------ND
EPA MCL = 5 ug/L ug/L 01/16/07 3 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 1 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 1 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 1 --ND 0.57 J ND ND ND ND ND ND ----ND
ug/L 01/14/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 1 0.21 ND ND ND ND ND ND ND ND ----ND
ug/L 08/12/15 1 0.21 ND ND ND ND ND ND ND ND ----ND
ug/L 02/17/16 1 0.21 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 1 0.21 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 1 0.21 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 1 0.21 ND ND ND ND ND ND ND ND ND ND ND
September 2017 5 of 6 1239-651617.101
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MW-1 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2ParameterSample
Date
Reporting
Units
TABLE 4
Guilford County, North Carolina
Summary of Detected Constituents in Groundwater
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
UpgradientSWS
Reporting
Limit
BlanksMDL
Downgradient
cis-1,2-Dichloroethene ug/L 01/09/06 5 --ND ND ND ND ND ND --------ND
NC 2L = 70 ug/L ug/L 07/12/06 5 --ND ND ND ND ND ND --------ND
EPA MCL = 70 ug/L ug/L 01/16/07 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 5 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 5 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 5 --ND 0.87 J ND ND ND ND ND ND ----ND
ug/L 01/14/13 5 --ND 0.83 J ND ND ND ND ND ND ----ND
ug/L 07/09/13 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 5 --ND 0.69 J ND ND ND ND ND ND ----ND
ug/L 03/03/15 5 0.15 ND ND ND ND ND ND ND 0.47 J ----ND
ug/L 08/12/15 5 0.15 ND 0.57 J ND ND ND ND ND ND ----ND
ug/L 02/17/16 5 0.15 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 5 0.15 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 5 0.15 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 5 0.15 ND ND ND ND ND ND ND ND ND ND ND
Ethylbenzene ug/L 01/09/06 5 --ND ND ND ND ND ND --------ND
NC 2L = 600 ug/L ug/L 07/12/06 5 --ND ND ND ND ND ND --------ND
EPA MCL = 700 ug/L ug/L 01/16/07 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 1 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 1 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 1 0.13 ND ND ND ND ND ND ND ND ----ND
ug/L 08/12/15 1 0.13 ND 0.46 J ND ND ND ND ND ND ----ND
ug/L 02/17/16 1 0.13 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 1 0.13 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 1 0.13 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 1 0.13 ND ND ND ND ND ND ND ND ND ND ND
Methylene chloride ug/L 01/09/06 10 --ND ND ND ND ND ND --------ND
NC 2L = 5 ug/L ug/L 07/12/06 10 --ND ND ND ND ND ND --------ND
EPA MCL = 5 ug/L ug/L 01/16/07 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 1 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 1 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 1 --ND 0.51 J ND ND ND ND ND ND ----ND
ug/L 07/09/12 1 --ND 0.92 J ND ND ND ND ND ND ----ND
ug/L 01/14/13 1 --ND 1.1 ND ND ND ND ND ND ----ND
ug/L 07/09/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 1 --ND 0.41 J ND ND ND ND ND ND ----ND
ug/L 07/08/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 03/03/15 1 0.23 ND 0.48 J ND ND ND ND ND 0.84 J ----ND
ug/L 08/12/15 1 0.23 ND ND ND ND ND ND ND 0.96 J ----ND
ug/L 02/17/16 1 0.23 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 1 0.23 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 1 0.23 ND ND ND ND ND ND ND ND ND ND 0.57 J
ug/L 07/11/17 1 0.23 ND ND ND ND ND ND ND 1.4 J ND ND ND
Toluene ug/L 01/09/06 5 --ND ND ND ND ND ND --------ND
NC 2L = 600 ug/L ug/L 07/12/06 5 --ND ND ND ND ND ND --------ND
EPA MCL = 1000 ug/L ug/L 01/16/07 5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 1 --ND ND ND ND ND ND ND ND ----0.63
ug/L 01/30/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 1 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 1 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/13 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 1 --ND 0.43 J ND ND ND ND ND ND ----ND
ug/L 03/03/15 1 0.14 ND ND ND ND ND ND ND ND ----ND
ug/L 08/12/15 1 0.14 ND ND ND ND ND ND ND ND ----ND
ug/L 02/17/16 1 0.14 ND ND ND ND ND ND ND 1.2 ----ND
ug/L 07/14/16 1 0.14 ND ND ND ND ND ND ND 2.0 ----ND
ug/L 01/11/17 1 0.14 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 1 0.14 ND ND ND ND ND ND ND ND ND ND ND
Vinyl chloride ug/L 01/09/06 10 --ND ND ND ND ND ND --------ND
NC 2L = 0.03 ug/L ug/L 07/12/06 10 --ND ND ND ND ND ND --------ND
EPA MCL = 2 ug/L ug/L 01/16/07 5.5 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/02/07 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/08 10 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/17/08 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/14/09 1 --ND ND ND ND ND ND --------ND
ug/L 07/16/09 1 --ND ND ND ND ND ND --------ND
ug/L 01/04/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/01/10 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/13/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/21/11 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 01/16/12 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/09/12 1 --ND 0.78 J ND ND ND ND ND ND ----ND
ug/L 01/14/13 1 --ND 0.93 J ND ND ND ND ND ND ----ND
ug/L 07/09/13 1 --ND 0.90 J ND ND ND ND ND ND ----ND
ug/L 01/30/14 1 --ND ND ND ND ND ND ND ND ----ND
ug/L 07/08/14 1 --ND 1.40 ND ND ND ND ND ND ----ND
ug/L 03/03/15 1 0.32 ND 0.58 J ND ND ND ND ND ND ----ND
ug/L 08/12/15 1 0.32 ND 0.95 J ND ND ND ND ND ND ----ND
ug/L 02/17/16 1 0.32 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 1 0.32 ND ND ND ND ND ND ND ND ----ND
ug/L 01/11/17 1 0.32 ND ND ND ND ND ND ND ND ND ND ND
ug/L 07/11/17 1 0.32 ND ND ND ND ND ND ND ND ND ND ND
September 2017 6 of 6 1239-651617.101
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MW-1 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2ParameterSample
Date
Reporting
Units
TABLE 4
Guilford County, North Carolina
Summary of Detected Constituents in Groundwater
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
UpgradientSWS
Reporting
Limit
BlanksMDL
Downgradient
Tetrahydrofuran ug/L 01/13/11 ----ND ND ND ND ND 6.2 ND ND ----ND
No Standard ug/L 07/21/11 ----ND ND ND ND ND 21 ND ND ----ND
No EPA MCL ug/L 01/16/12 ----ND ND ND ND ND 61 ND ND ----ND
ug/L 07/09/12 ----ND ND ND ND ND 30 ND ND ----ND
ug/L 01/14/13 ----ND 0.95 J ND ND ND 22 ND ND ----ND
ug/L 07/09/13 ----ND ND ND ND ND ND ND ND ----ND
ug/L 01/30/14 ----ND ND ND ND ND 8.1 ND ND ----ND
ug/L 07/08/14 ----ND 3.3 ND ND ND 14 ND ND ----ND
ug/L 03/03/15 --0.80 ND 1.4 ND ND ND 6.3 ND ND ----ND
ug/L 08/12/15 --0.80 2.8 ND 1.5 ND ND 25 ND ND ----ND
ug/L 02/17/16 --0.80 ND ND ND ND ND ND ND ND ----ND
ug/L 07/14/16 --0.80 ND ND ND ND ND 5.6 ND ND ----ND
ug/L 01/11/17 --0.80 ND ND ND ND ND 15 ND ND ND 36 ND
ug/L 07/11/17 --0.80 ND ND ND ND ND 21 ND 2.2 J ND 18 ND
Chloride mg/L 01/16/07 ----11.0 13.0 4.0 7.0 19.0 16.0 4.0 11.0 ------
NC 2L = 250 mg/L mg/L 07/02/07 ----5.2 6.9 2.8 B 7.0 9.0 9.3 3.3 6.7 ----0.57
EPA MCL = 250 ug/L*mg/L 01/30/08 ----6.5 10 3.3 J 10 16 15 3.3 J 9.4 ----ND
mg/L 07/17/08 ----8.0 14 4.3 B 9.8 21 14 3.9 B 8.4 ----1.3
mg/L 01/14/09 ----7.2 6.9 1.8 J 5.0 12 14 --------ND
mg/L 07/16/09 ----8.4 12 5.3 12 17 15 --------ND
mg/L 01/04/10 ----9.7 8.0 6.4 7.4 10 20 5.0 7.0 ----ND
mg/L 07/01/10 ----9.9 10 5.5 7.7 10 40 5.1 7.2 ----ND
mg/L 01/13/11 ----10 24 5.8 12 11 41 4.9 J 7.7 ----ND
mg/L 07/21/11 ----12 30 3.8 B 13 14 47 4.5 B 8.2 ----1.5
mg/L 01/16/12 ----13 21 4.1 6.9 7 63 4.7 8.8 ----ND
mg/L 07/09/12 ----14 24 4.0 B 11 14 66 4.8 B 11 ----1.4
mg/L 01/14/13 ----14 61 5.3 B 12 5.8 B 55 4.9 B 12 ----1.4 J
mg/L 07/09/13 ----15 61 4.2 J 7.5 7.1 46 5.3 14 ----ND
mg/L 01/30/14 ----14 48 6.6 7.2 3.5 55 5.3 19 ----ND
mg/L 07/08/14 ----16 120 6.3 8.6 9.1 63 5.5 28 ----ND
mg/L 03/03/15 --2.2 16 130 6.5 5.7 3.2 J 71 5.6 42 ----ND
mg/L 08/12/15 --2.2 21 150 5.3 14 11 76 6.2 32 ----ND J
mg/L 02/17/16 --2.2 17 110 15 7.1 4.2 J 100 5.2 40 ----ND
mg/L 07/14/16 --2.2 22 140 9.1 13 11 110 6.2 57 ----ND
mg/L 01/11/17 --2.2 22 220 8.4 19 3.9 J 120 5.9 66 34 75 ND
mg/L 07/11/17 --2.2 22 110 5.8 12 4.3 J 130 5.9 83 17 68 ND
Total Dissolved Solids mg/L 01/16/07 ----214 180 68 82 280 212 236 236 ------
NC 2L = 1000 mg/L mg/L 07/02/07 ----190 180 74 82 200 260 150 200 ----ND
No EPA MCL mg/L 01/30/08 ----210 200 100 110 410 310 180 240 ----ND
mg/L 07/17/08 ----220 270 54 90 280 220 140 190 ----ND
mg/L 01/14/09 ----240 190 100 100 320 240 --------ND
mg/L 07/16/09 ----240 360 110 120 260 280 --------ND
mg/L 01/04/10 ----280 230 86 82 260 310 160 210 ----ND J
mg/L 07/01/10 ----270 310 86 96 250 480 190 240 ----ND J
mg/L 01/13/11 ----220 330 190 150 280 490 190 220 ----ND
mg/L 07/21/11 ----260 370 48 120 320 520 190 230 ----ND
mg/L 01/16/12 ----300 300 98 94 280 560 180 250 ----ND
mg/L 07/09/12 ----330 550 96 140 270 760 230 340 ----ND
mg/L 01/14/13 ----350 580 120 130 290 670 200 370 ----ND
mg/L 07/09/13 ----350 530 64 70 230 600 190 360 ----ND
mg/L 01/30/14 ----350 500 88 130 180 660 210 400 ----ND
mg/L 07/08/14 ----360 910 66 110 230 750 210 460 ----ND
mg/L 03/03/15 --10 390 770 56 56 120 860 210 510 ----ND
mg/L 08/12/15 --50 370 1200 ND 130 200 860 210 360 ----ND
mg/L 02/17/16 --50 430 810 110 100 150 1100 240 450 ----ND
mg/L 07/14/16 --50 390 940 72 90 220 1100 250 470 ----ND
mg/L 01/11/17 --50 430 1600 86 120 210 1300 280 540 240 550 ND
mg/L 07/11/17 --50 390 1100 ND 110 130 1300 290 700 190 620 ND
Sulfate as SO4 mg/L 01/16/07 ----48.4 44.3 7.03 B 33.4 41.7 51.2 24.0 13.6 ----2.25
NC 2L = 250 mg/L mg/L 07/02/07 250 --39 25 6.4 19 25 69 11 10 ----ND
No EPA MCL mg/L 01/30/08 250 --35 J 24 J 5.9 J 23 J 79 J 26 J 10 J 9.2 J ----ND
mg/L 07/17/08 250 --62 J 41 J 8.9 J 23 J 39 J 73 J 14 J 14 J ----ND
mg/L 01/14/09 250 --66 J 54 J 11 J 21 J 24 J 73 J --------ND
mg/L 07/16/09 250 --74 J 36 J 8.3 J 33 J 33 J 100 --------ND
mg/L 01/04/10 250 --95 J 37 J 11 J 26 J 25 J 110 J 12 J 19 J ----ND
mg/L 07/01/10 250 --93 J 41 J 9.6 J 27 J 22 J 150 J 13 J 23 J ----ND
mg/L 01/13/11 250 --99 J 42 J 10 J 44 J 13 J 140 J 14 J 36 J ----ND
mg/L 07/21/11 250 --110 J 66 J 8.3 J 40 J 25 J 140 J 15 J 46 J ----ND
mg/L 01/16/12 250 --100 J 55 J 9.1 J 23 J 13 J 130 J 18 J 50 J ----ND
mg/L 07/09/12 250 --110 J 26 J 7.9 J 40 J 31 J 190 J 20 J 56 J ----ND
mg/L 01/14/13 250 --120 J 55 J 13 J 58 J 9.6 J 190 J 23 J 62 J ----ND
mg/L 07/09/13 250 --140 J 55 J 8.6 J 37 J 17 J 180 J 24 J 71 J ----1.6
mg/L 01/30/14 250 --160 J 68 J 15 J 52 J 6.4 J 200 J 28 J 67 J ----ND
mg/L 07/08/14 250 --150 J 45 J 11 J 49 J 26 J 210 J 28 J 87 J ----ND
mg/L 03/03/15 250 2.9 170 J 57 J 11 J 31 J 13 J 270 35 J 92 J ----ND
mg/L 08/12/15 250 2.9 160 J 26 J 8.6 J 71 J 19 J 210 J 35 J 54 J ----ND
mg/L 02/17/16 250 2.9 200 J 34 J 15 J 31 J 14 J 200 J 38 J 54 J ----ND
mg/L 07/14/16 250 2.9 210 J 73 J 10 J 56 J 28 J 240 J 45 J 53 J ----ND
mg/L 01/11/17 250 2.9 210 J 27 J 9.6 J 43 J 8.3 J 220 J 43 J 51 J 56 J 120 J ND
mg/L 07/11/17 250 2.9 220 22 J 9.9 J 39 J 11 J 150 J 46 J 54 J 34 J 99 J ND
Total Alkalinity mg/L 01/16/07 ----39 53 5.0 25 17 160 100 170 ------
No NC 2L Standard mg/L 07/02/07 ----20 100 46 12 110 100 99 160 ----ND
No EPA MCL mg/L 01/30/08 ------------310 ----------ND
mg/L 01/30/08 ----17 81 32 ND --89 100 170 ----ND
mg/L 07/17/08 ----22 B 210 30 19 B 180 68 100 150 ----4.8
mg/L 01/14/09 ----25 88 32 5.6 J 180 42 --------ND
mg/L 07/16/09 ----17 150 34 ND 160 59 --------ND
mg/L 01/04/10 ----43 160 51 24 100 76 110 160 ----ND
mg/L 07/01/10 ----29 200 31 13 J 170 85 110 130 ----ND
mg/L 01/13/11 ----23 230 29 ND 210 140 110 130 ----ND
mg/L 07/21/11 ----25 170 30 12 J 220 140 110 110 ----ND
mg/L 01/16/12 ----26 160 28 ND 190 170 110 120 ----ND
mg/L 07/09/12 ----23 280 31 13 130 200 120 150 ----ND
mg/L 01/14/13 ----20 280 32 ND 190 190 130 170 ----ND
mg/L 07/09/13 ----29 260 32 ND 100 160 130 190 ----ND
mg/L 01/30/14 ----23 250 32 ND 140 210 140 200 ----ND
mg/L 07/08/14 ----29 500 41 22 110 270 150 230 ----ND
mg/L 03/03/15 --14 30 440 33 ND 110 310 150 270 ----ND
mg/L 08/12/15 --14 20 730 36 17 180 330 150 220 ----ND
mg/L 02/17/16 --14 23 480 39 ND 950 510 160 250 ----ND
mg/L 07/14/16 --70 23 550 33 15 130 560 170 290 ----ND
mg/L 01/11/17 --14 27 990 33 ND 190 640 170 320 78 200 ND
mg/L 07/11/17 --14 22 680 26 17 100 790 180 380 98 300 ND
Notes:
1. MW = groundwater monitoring well
2. ug/L = micrograms per liter
3. mg/L = milligrams per liter
4. J = estimated value
5. B = blank-qualified data
6. ND = not detected at or above the stated reporting limit
7. Standards = NC 2L Groundwater Standards or North Carolina Solid Waste Section Groundwater Protection Standards
8. --- = no data available
9. Bolded = Concentrations above the current NC 2L Groundwater Standards or Solid Waste Section Groundwater Protection Standards (SWS GPS) have been bolded.
10. Shaded = Concentrations above the current EPA Maximum Contaminate Level (MCL) have been shaded.
11. Blanks = Field, trip, and laboratory blanks.
12. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/18/07
13. # = EPA Action Level
14. * = EPA Secondary MCL
15. Data prior to 1/9/06 provided by Joyce Engineering, Inc.
16. The following dilutions were noted for the July 2017 event: Total Alkalinity: MW-2 (10x), MW-5 (2x), MW-6 (5x), MW-8 (5x), and AMW-2 (2x). Chloride: MW-2 (4x) and MW-6 (3x), Sulfate: MW-1 (3x) and MW-6 (3x), VOAs: MW-2 (10x),
and Seleium: MW-2 (5x)
September 2017 1 of 2 1239-651617.101
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MW-1 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2
pH (Field)S.U.07/06/05 6.47 5.44 6.00 5.85 5.88 6.42 --------
S.U.01/09/06 5.96 5.76 6.37 6.02 6.27 6.10 --------
S.U.07/12/06 6.20 5.64 6.10 5.70 6.38 6.85 --------
S.U.01/16/07 7.35 6.82 6.88 6.61 6.22 6.59 6.74 7.20 ----
S.U.07/02/07 7.47 7.24 7.14 6.77 7.13 7.40 7.30 7.13 ----
S.U.01/30/08 5.78 5.51 5.92 5.34 6.29 6.25 6.58 7.35 ----
S.U.07/17/08 5.75 5.75 5.70 5.86 6.05 5.91 6.47 7.23 ----
S.U.01/14/09 5.77 5.64 5.60 5.11 6.28 5.45 --------
S.U.07/16/09 5.64 5.85 5.59 5.30 6.04 5.96 --------
S.U.01/04/10 5.49 5.59 5.36 4.73 6.08 6.05 6.30 6.96 ----
S.U.07/01/10 5.53 5.72 5.37 5.22 5.96 5.49 6.34 6.48 ----
S.U.01/13/11 5.54 5.80 5.57 5.24 5.96 6.28 6.45 6.52 ----
S.U.07/21/11 5.27 5.50 5.10 5.02 6.02 5.84 6.22 6.00 ----
S.U.01/16/12 5.59 5.76 5.59 5.11 6.26 5.79 6.43 6.36 ----
S.U.07/09/12 5.92 6.12 5.53 5.57 6.20 6.45 6.60 6.30 ----
S.U.01/14/13 5.47 6.00 5.78 5.45 6.11 6.41 6.44 6.29 ----
S.U.07/09/13 5.02 5.40 4.83 4.60 5.97 5.67 5.56 5.70 ----
S.U.01/30/14 5.58 6.04 5.75 5.48 6.35 6.42 6.44 6.30 ----
S.U.07/08/14 5.63 6.32 5.86 5.72 6.42 6.60 6.62 6.27 ----
S.U.03/03/15 5.49 6.23 5.88 5.50 6.39 6.61 6.50 6.18 ----
S.U.08/12/15 5.66 6.08 5.37 5.54 5.98 6.54 6.03 6.10 ----
Verification Event S.U.09/28/15 --6.31 ----------------
S.U.02/17/16 5.25 6.32 5.22 5.06 6.07 6.25 6.16 6.38 ----
S.U.07/14/16 5.19 5.87 5.17 5.06 5.81 6.15 5.97 5.89 ----
Verification Event S.U.08/04/16 --5.97 ------6.16 --------
S.U.01/01/17 4.95 6.15 4.92 4.84 5.67 6.47 5.77 6.03 6.00 5.88
S.U.07/11/17 5.30 6.14 5.11 4.96 5.91 6.32 5.94 6.00 6.06 5.90
Specific Conductance uS/cm 07/06/05 253 222 178 168 313 520 --------
(Field)uS/cm 01/09/06 146 164 82 81 334 142 --------
uS/cm 07/12/06 235 222 118 215 363 367 --------
uS/cm 01/16/07 224 279 850 110 497 226 268 374 ----
uS/cm 07/02/07 234 330 131 125 355 413 261 384 ----
uS/cm 01/30/08 317 411 269 346 999 595 318 505 ----
uS/cm 07/17/08 266 528 105 153 510 376 248 360 ----
uS/cm 01/14/09 279 319 109 95 588 337 --------
uS/cm 07/16/09 288 547 122 160 460 424 --------
uS/cm 01/04/10 371 429 130 124 561 510 257 371 ----
uS/cm 07/01/10 318 466 101 123 465 631 235 302 ----
uS/cm 01/13/11 327 578 118 189 454 700 251 344 ----
uS/cm 07/21/11 408 589 101 198 595 769 280 382 ----
uS/cm 01/16/12 369 432 97 102 460 815 269 367 ----
uS/cm 07/09/12 341 675 90 152 337 943 246 412 ----
uS/cm 01/14/13 334 659 107 166 382 722 247 388 ----
uS/cm 07/09/13 468 847 102 154 432 864 311 551 ----
uS/cm 01/30/14 530 915 156 209 443 1072 367 649 ----
uS/cm 07/08/14 506 1502 138 207 425 1066 356 717 ----
uS/cm 03/03/15 570 1344 133 128 330 1356 312 820 ----
uS/cm 08/12/15 458 1600 94 220 401 1120 332 559 ----
Verification Event uS/cm 09/28/15 --1845 ----------------
uS/cm 02/17/16 554 1363 165 134 316 1507 380 731 ----
uS/cm 07/14/16 570 1530 135 209 408 1710 411 800 ----
Verification Event uS/cm 08/04/16 --900 ------1730 --------
uS/cm 01/01/17 529 2040 119 188 406 1560 387 750 351 800
uS/cm 07/11/17 608 1563 113 178 350 1820 436 1113 334 887
Temperature (Field)oC 07/06/05 20.80 20.50 16.20 19.30 19.00 19.60 --------
oC 01/09/06 17.86 14.23 15.62 13.82 16.72 14.35 --------
oC 07/12/06 23.85 24.21 20.80 21.80 20.59 20.91 --------
oC 01/16/07 15.80 12.10 13.80 18.80 12.50 12.00 12.20 12.50 ----
oC 07/02/07 19.65 18.72 17.72 18.23 18.54 17.27 16.27 18.76 ----
oC 01/30/08 16.01 12.32 15.12 13.19 14.84 13.01 14.34 12.35 ----
oC 07/17/08 18.58 17.34 17.47 17.02 19.68 20.10 17.33 17.16 ----
oC 01/14/09 15.08 10.34 13.80 12.34 14.24 11.14 --------
oC 07/16/09 18.48 16.95 17.80 16.62 18.38 19.07 --------
oC 01/04/10 12.50 10.57 12.82 10.59 14.03 11.46 12.37 10.40 ----
oC 07/01/10 18.65 16.14 15.30 16.12 17.55 19.93 16.11 18.97 ----
oC 01/13/11 12.86 11.04 13.45 11.39 13.50 10.63 12.51 9.74 ----
oC 07/21/11 19.57 17.91 17.25 18.02 18.06 19.68 17.72 21.63 ----
oC 01/16/12 15.62 11.97 14.60 13.16 14.77 12.66 14.01 11.33 ----
oC 07/09/12 19.26 17.83 17.60 18.80 18.57 23.63 17.25 20.90 ----
oC 01/14/13 16.81 13.86 15.34 13.68 15.68 14.04 15.12 14.27 ----
oC 07/09/13 18.75 17.51 17.16 17.14 17.54 18.92 17.16 20.77 ----
oC 01/30/14 14.7 10.5 12.7 11.1 13.9 10.2 13.1 10.6 ----
oC 07/08/14 19.0 15.8 15.2 16.1 17.6 18.9 18.8 18.9 ----
oC 03/03/15 14.2 9.88 12.5 10.3 12.0 9.46 13.0 9.43 ----
oC 08/12/15 18.6 17.5 15.1 16.3 17.6 19.3 15.8 17.1 ----
Verification Event oC 09/28/15 --17.41 ----------------
oC 02/17/16 14.70 11.9 13.8 11.4 14.4 11.6 14.8 12.8 ----
oC 07/14/16 19.0 16.8 17.0 17.2 18.2 21.3 17.1 21.8 ----
Verification Event oC 08/04/16 --18.4 ------19.3 --------
oC 01/01/17 16.0 14.2 13.9 13.2 15.2 14.4 13.6 13.2 14.1 11.5
oC 07/11/17 19.8 18.3 16.8 17.6 17.7 21.1 16.7 23.1 17.0 19.0
Turbidity (Field)NTU 07/06/05 92.1 126 241 65.2 71.4 71.4 --------
NTU 01/09/06 165 293 48.5 55.2 28.4 130 --------
NTU 07/12/06 130 89.2 49.2 28 64 387 --------
NTU 01/16/07 372 62.5 73.3 188 497 294 >1000 130 ----
NTU 07/02/07 222 521 37 146 61.2 405 >1000 66.3 ----
NTU 01/30/08 13.7 15.5 3.08 44.6 56.1 6.81 64.1 58.4 ----
NTU 07/17/08 4.48 0.97 1.11 18.3 45.7 2.41 7 5.21 ----
NTU 01/14/09 3.02 38.7 1.64 24.7 71.3 2.95 --------
NTU 07/16/09 2.38 2.65 4.1 27.5 18.4 2.31 --------
NTU 01/04/10 2.50 13.0 3.64 21.0 13.2 3.11 3.48 20.5 ----
NTU 07/01/10 1.58 25.9 1.87 5.66 3.51 2.53 3.99 1.83 ----
NTU 01/13/11 0.43 12.6 1.19 7.57 11.6 1.24 0.73 0.52 ----
NTU 07/21/11 1.33 25.0 1.28 11.89 6.92 8.59 1.31 0.50 ----
NTU 01/16/12 1.10 24.8 2.13 14.6 44.4 1.70 1.45 0.51 ----
NTU 07/09/12 3.25 27.6 3.99 98.5 5.23 20.2 4.81 3.95 ----
NTU 01/14/13 4.05 9.87 10.5 14.8 4.20 4.98 6.70 2.09 ----
NTU 07/09/13 2.14 11.7 1.36 16.1 4.00 2.30 3.31 1.20 ----
NTU 01/30/14 2.71 81.0 8.48 62.8 51.3 1.03 2.71 27.5 ----
NTU 07/08/14 3.40 19.1 3.11 12.9 6.77 3.13 3.44 7.84 ----
NTU 03/03/15 0.63 26.1 1.93 21.3 363 9.97 0.83 0.80 ----
NTU 08/12/15 0.47 88.3 0.87 14.6 5.57 4.83 0.82 1.86 ----
NTU 09/28/15 --11.9 ----------------
NTU 02/17/16 1.58 25.0 3.52 16.9 49.1 3.53 1.54 5.37 ----
NTU 07/14/16 0.96 4.31 1.53 10.3 13.6 1.96 0.95 1.02 ----
Verification Event NTU 08/04/16 --10.2 ------3.98 --------
NTU 01/01/17 2.35 1.95 2.52 7.95 16.3 16.9 0.32 13.3 7.81 9.06
NTU 07/11/17 0.92 8.98 1.92 9.16 12.0 2.16 0.67 4.04 1.79 5.57
Parameter Reporting
Units
Sample
Date
Upgradient
TABLE 5
Summary of Field Parameters in Groundwater
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
Guilford County, North Carolina
Downgradient
September 2017 2 of 2 1239-651617.101
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MW-1 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2ParameterReporting
Units
Sample
Date
Upgradient
TABLE 5
Summary of Field Parameters in Groundwater
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
Guilford County, North Carolina
Downgradient
Oxidation Reduction mV 07/06/05 --------------------
Potential (Field)mV 01/09/06 203 132 129 217 78 233 --------
mV 01/09/06 7.51 4.73 9.67 5.06 5.75 9.96 --------
mV 07/12/06 140 179 150 211 32 144 --------
mV 07/12/06 11.63 12.28 13.84 12.60 12.19 12.23 --------
mV 01/16/07 106 95 65 130 64 187 63 105 ----
mV 01/16/07 9.10 4.90 11.20 8.60 10.50 10.90 9.70 9.80 ----
mV 01/30/08 213 194 177 226 -21 203 160 166 ----
mV 07/17/08 178 -1 151 68 106 122 117 117 ----
mV 01/14/09 78.5 96.3 200.6 152.5 -7.8 171.1 --------
mV 07/16/09 174.7 30.1 148.0 183.6 27.4 134.9 --------
mV 01/04/10 111.1 62.0 153.1 192.9 -49 117.2 83.3 55.1 ----
mV 07/01/10 64.6 0.4 158.6 -73.3 -119.7 67.6 32.2 2.5 ----
mV 01/13/11 160.7 66.5 188.6 227.6 99.1 130.3 152.9 99.0 ----
mV 07/21/11 103.9 11.2 142.1 131.2 -37.6 77.7 77.9 45.7 ----
mV 01/16/12 169.2 40.5 179.1 249.5 -49.4 58.9 75.3 105.6 ----
mV 07/09/12 52.6 7.3 89.2 53.8 18.4 10.2 30.8 32.8 ----
mV 01/14/13 33.5 7.9 23.1 17.4 -81.7 8.7 15.0 19.1 ----
mV 07/09/13 121.4 -10.5 107.6 105.3 -31.1 12.6 82.1 -16.7 ----
mV 01/30/14 210.2 -60.6 131.6 190.6 -74.6 6.2 85.7 -121.9 ----
mV 07/08/14 246.9 -55.3 193.8 143.2 -48.9 -21.4 141.7 -43.7 ----
mV 03/03/15 218.8 -13.5 98.5 145.6 -35.1 24.3 87.9 2.7 ----
mV 08/12/15 272.1 27.2 181.3 149.2 -28.7 -149.4 230.8 14.0 ----
Verification Event mV 09/28/15 ---97.4 ----------------
mV 02/17/16 297.4 2.7 230.1 294.6 -13.9 -14.4 149.9 -7.2 ----
mV 07/14/16 266.3 -22.1 172.4 130.0 -20.3 -101.8 204.4 -61.3 ----
Verification Event mV 08/04/16 --8.2 -------43.2 --------
mV 01/01/17 437.7 -22.9 271.4 282.1 -6.1 14.8 380.6 60.4 92.1 132.6
mV 07/11/17 265.9 -33.1 238.8 207.1 -30.1 -58.6 224.7 -14.0 50.5 42.8
Dissolved Oxygen (Field)mg/L 01/30/08 3.83 5.13 5.56 2.52 3.48 5.34 6.40 3.27 ----
mg/L 07/17/08 4.55 0.54 4.58 0.36 1.81 5.61 5.78 1.50 ----
mg/L 01/14/09 5.86 4.45 6.24 3.24 2.12 2.43 --------
mg/L 07/16/09 4.79 0.99 4.31 1.05 1.60 4.66 --------
mg/L 01/04/10 5.21 0.94 5.39 1.72 1.54 6.53 6.05 3.02 ----
mg/L 07/01/10 4.37 0.49 5.49 0.80 1.18 0.93 6.20 1.11 ----
mg/L 01/13/11 5.19 0.92 3.62 4.96 1.54 5.01 5.80 2.60 ----
mg/L 07/21/11 5.64 0.69 3.96 1.16 2.31 1.17 5.51 1.33 ----
mg/L 01/16/12 4.63 1.18 4.64 1.03 0.20 0.69 5.18 2.38 ----
mg/L 07/09/12 4.67 0.54 3.99 0.62 0.54 1.92 5.02 0.93 ----
mg/L 01/14/13 4.78 0.38 3.22 0.82 1.02 3.71 5.08 0.78 ----
mg/L 07/09/13 4.68 3.30 4.79 1.88 2.07 1.80 6.19 3.42 ----
mg/L 01/30/14 3.95 0.23 5.16 0.80 0.38 2.39 4.15 0.35 ----
mg/L 07/08/14 4.14 0.44 5.60 0.46 0.61 0.61 5.09 0.84 ----
mg/L 03/03/15 3.41 2.77 4.21 4.60 0.73 3.33 5.53 0.86 ----
mg/L 08/12/15 3.52 0.76 3.68 1.00 0.62 0.58 4.00 0.39 ----
Verification Event mg/L 09/28/15 --0.85 ----------------
mg/L 02/17/16 4.04 1.53 6.05 1.51 1.05 0.75 3.76 1.21 ----
mg/L 07/14/16 3.43 1.40 4.90 0.45 2.81 1.30 3.95 0.75 ----
Verification Event mg/L 08/04/16 --1.61 ------0.36 --------
mg/L 01/01/17 3.73 0.65 3.00 0.60 2.46 0.43 4.23 0.50 0.30 0.73
mg/L 07/11/17 3.37 1.41 3.94 0.62 0.75 0.16 3.95 1.49 0.19 0.22
Notes:
1. MW = groundwater monitoring well
2. mg/L = milligrams per liter
3. S.U. = Standard Units
4. NTU = Nephelometric Turbidity Units
5. uS/cm = microsiemens per centimeter
6. --- = no data available
7. Data prior to 1/9/06 provided by Joyce Engineering, Inc.
September 2017 1 of 6 1239-651617.101
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SW-1 SW-3 SW-2 SW-4
Antimony ug/L 01/16/07 --6 ND ND ND ND ND
(No SW Standard)ug/L 07/02/07 --6 --ND --ND ND
ug/L 01/29/08 --6 ND ND ND ND ND
ug/L 07/17/08 --6 --ND --ND ND
ug/L 02/27/09 --6 ND ND ND ND ND
ug/L 07/16/09 --6 dry ND dry ND ND
ug/L 01/04/10 --6 0.0870 J ND ND ND ND
ug/L 07/01/10 --6 dry dry dry ND ND
ug/L 01/13/11 --6 ND ND ND ND ND
ug/L 07/21/11 --6 dry ND --ND ND
ug/L 01/16/12 --6 ND ND ND ND ND
ug/L 07/09/12 --6 dry ND dry ND 0.461 J
ug/L 01/14/13 --6 ND ND ND ND ND
ug/L 07/09/13 --6 ND 0.371 J ND 0.436 J ND
ug/L 01/30/14 --6 ND ND ND 0.308 J ND
ug/L 07/08/14 --6 dry ND dry ND ND
ug/L 03/03/15 0.220 6 ND 0.255 J ND ND ND
ug/L 08/12/15 0.220 6 dry ND dry ND ND
ug/L 02/17/16 0.220 6 ND ND ND 8.13 J ND
ug/L 07/14/16 0.220 6 ND ND ND ND ND
ug/L 01/11/17 0.370 6 ND ND 0.553 J 0.413 J ND
ug/L 07/11/17 0.370 6 dry dry ND ND ND
Arsenic ug/L 10/08/03 --10 ND ND ND ND ND
Human Health SW Standard = 10 ug/L ug/L 01/23/04 --10 ND ND ND ND ND
ug/L 07/08/04 --10 ND ND ND ND ND
ug/L 01/25/05 --10 ND ND ND ND ND
ug/L 07/06/05 --10 dry ND dry ND ND
ug/L 01/09/06 --10 ND ND ND ND ND
ug/L 07/12/06 --10 ND ND ND ND ND
ug/L 01/16/07 --10 ND 3.1 B 3.8 B ND 2.4 J
ug/L 07/02/07 --10 dry ND dry ND ND
ug/L 01/29/08 --10 ND ND ND ND 2.1 J
ug/L 07/17/08 --10 dry ND dry ND ND
ug/L 02/27/09 --10 3.5 J ND ND ND ND
ug/L 07/16/09 --10 dry 2.82 J dry ND ND
ug/L 01/04/10 --10 ND ND ND ND ND
ug/L 07/01/10 --10 dry dry dry ND 3.54 J
ug/L 01/13/11 --10 3.38 J 3.72 J 3.51 J 3.70 J ND
ug/L 07/21/11 --10 dry ND --ND ND
ug/L 01/16/12 --10 ND ND ND ND ND
ug/L 07/09/12 --10 dry 2.86 B dry 3.18 B 3.13 J
ug/L 01/14/13 --10 ND ND ND ND ND
ug/L 07/09/13 --10 ND ND ND ND ND
ug/L 01/30/14 --10 ND ND ND ND ND
ug/L 07/08/14 --10 dry ND dry ND ND
ug/L 03/03/15 5.40 10 ND ND ND ND ND
ug/L 08/12/15 6.80 10 dry ND dry ND ND
ug/L 02/17/16 6.80 10 ND ND ND ND ND
ug/L 07/14/16 6.80 10 6.91 J ND ND ND ND
ug/L 01/11/17 6.80 10 ND ND ND ND ND
ug/L 07/11/17 6.80 10 dry dry ND ND ND
Barium ug/L 10/08/03 --500 ND ND ND ND ND
Human Health SW Standard = 200000 ug/L ug/L 01/23/04 --500 ND ND ND ND ND
ug/L 07/08/04 --500 ND ND ND ND ND
ug/L 01/25/05 --500 ND ND ND ND ND
ug/L 07/06/05 --500 dry ND dry ND ND
ug/L 01/09/06 --500 ND ND ND ND ND
ug/L 07/12/06 --500 ND ND ND ND ND
ug/L 01/16/07 --100 38.7 J 47.6 J 39.5 J 46.0 J 0.90 J
ug/L 07/02/07 --100 dry 62.6 J dry 51.7 J 1.2 J
ug/L 01/29/08 --100 49.8 J 74.1 J 62.2 J 71.2 J 0.3 J
ug/L 07/17/08 --100 dry 67.3 J dry 71.9 J ND
ug/L 02/27/09 --100 36.0 J 39.1 J 52.7 J 46.7 J ND
ug/L 07/16/09 --100 dry 94.5 J dry 84.4 J ND
ug/L 01/04/10 --100 34.0 J 66.2 J 38.0 J 50.3 J 0.552 J
ug/L 07/01/10 --100 dry dry dry 71.0 J ND
ug/L 01/13/11 --100 47.9 J 71.4 J 49.1 J 54.3 J ND
ug/L 07/21/11 --100 dry 87.5 J --69.4 J ND
ug/L 01/16/12 --100 37.2 J 37.3 J 54.8 J 47.4 J ND
ug/L 07/09/12 --100 dry 72.4 J dry 55.2 J ND
ug/L 01/14/13 --100 54.6 J 71.2 J 56.4 J 90.0 J 1.46 J
ug/L 07/09/13 --100 73.5 J 58.3 J 63.2 J 46.3 J 1.37 J
ug/L 01/30/14 --100 41.0 J 62.3 J 45.1 J 52.1 J 1.08 J
ug/L 07/08/14 --100 dry 74.4 J dry 61.0 J 1.13 J
ug/L 03/03/15 1.00 100 47.0 J 82.6 J 45.8 J 60.9 J 3.04 J
ug/L 08/12/15 1.00 100 dry 163 dry 167 2.33 J
ug/L 02/17/16 1.00 100 39.3 J 77.0 J 40.9 J 815 ND
ug/L 07/14/16 1.00 100 79.0 J 57.3 J 120 76.0 J 1.51 J
ug/L 01/11/17 1.00 100 71.4 J 56.2 J 91.0 J 85.3 J ND
ug/L 07/11/17 1.00 100 dry dry 80.6 J 58.7 J 1.39 J
Parameter Sample
Date
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
MDL
TABLE 6
Summary of Detected Constituents in Surface Water
Guilford County, North Carolina
Reporting
Units
DownstreamUpstreamSWS Reporting
Limit Blanks
September 2017 2 of 6 1239-651617.101
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SW-1 SW-3 SW-2 SW-4ParameterSample
Date
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
MDL
TABLE 6
Summary of Detected Constituents in Surface Water
Guilford County, North Carolina
Reporting
Units
DownstreamUpstreamSWS Reporting
Limit Blanks
Beryllium ug/L 01/16/07 --1 ND ND ND ND ND
Freshwater Acute SW Standard = 65 ug/L ug/L 07/02/07 --1 --ND --ND ND
Freshwater Chronic SW Standard = 6.5 ug/L ug/L 01/29/08 --1 ND ND ND ND ND
ug/L 07/17/08 --1 --ND --ND ND
ug/L 02/27/09 --1 ND ND ND ND ND
ug/L 07/16/09 --1 dry 0.220 J dry 0.178 J ND
ug/L 01/04/10 --1 ND ND ND ND ND
ug/L 07/01/10 --1 dry dry dry ND ND
ug/L 01/13/11 --1 ND ND ND ND ND
ug/L 07/21/11 --1 dry ND --ND ND
ug/L 01/16/12 --1 ND ND ND ND ND
ug/L 07/09/12 --1 dry ND dry ND ND
ug/L 01/14/13 --1 ND ND ND ND ND
ug/L 07/09/13 --1 ND ND ND ND ND
ug/L 01/30/14 --1 ND ND ND ND ND
ug/L 07/08/14 --1 dry ND dry ND ND
ug/L 03/03/15 0.100 1 ND ND ND ND ND
ug/L 08/12/15 0.100 1 dry ND dry ND ND
ug/L 02/17/16 0.100 1 ND ND ND 1.58 J ND
ug/L 07/14/16 0.100 1 ND ND ND ND ND
ug/L 01/11/17 0.100 1 ND ND ND ND ND
ug/L 07/11/17 0.130 1 dry dry ND ND ND
Cadmium ug/L 10/08/03 --1 ND ND ND ND ND
Freshwater Acute SW Standard = 0.82 ug/L ug/L 01/23/04 --1 ND ND ND ND ND
Freshwater Chronic SW Standard = 0.15 ug/L ug/L 07/08/04 --1 ND ND ND ND ND
ug/L 01/25/05 --1 ND ND ND ND ND
ug/L 07/06/05 --1 dry ND dry ND ND
ug/L 01/09/06 --1 ND ND ND ND ND
ug/L 07/12/06 --1 ND ND ND ND ND
ug/L 01/16/07 --1 ND ND ND ND ND
ug/L 07/02/07 --1 dry ND dry ND ND
ug/L 01/29/08 --1 ND ND ND ND ND
ug/L 07/17/08 --1 dry 0.40 J dry ND ND
ug/L 02/27/09 --1 ND ND ND ND ND
ug/L 07/16/09 --1 dry 0.134 B dry 0.442 B 1.19
ug/L 01/04/10 --1 0.317 J 0.230 J 0.830 J 0.143 J ND
ug/L 07/01/10 --1 dry dry dry ND ND
ug/L 01/13/11 --1 ND ND ND ND ND
ug/L 07/21/11 --1 dry ND --ND ND
ug/L 01/16/12 --1 ND ND ND ND ND
ug/L 07/09/12 --1 dry ND dry ND ND
ug/L 01/14/13 --1 ND ND ND ND ND
ug/L 07/09/13 --1 ND ND ND ND ND
ug/L 01/30/14 --1 ND ND ND ND ND
ug/L 07/08/14 --1 dry ND dry ND ND
ug/L 03/03/15 0.360 1 ND ND ND ND ND
ug/L 08/12/15 0.360 1 dry ND dry ND ND
ug/L 02/17/16 0.360 1 ND ND ND ND ND
ug/L 07/14/16 0.360 1 ND ND ND ND ND
ug/L 01/11/17 0.360 1 ND ND ND ND ND
ug/L 07/11/17 0.360 1 dry dry ND ND ND
Chromium ug/L 10/08/03 --10 ND ND ND ND ND
Freshwater Acute SW Standard = 180 ug/L ug/L 01/23/04 --10 ND ND ND ND ND
Freshwater Chronic SW Standard = 24 ug/L ug/L 07/08/04 --10 ND ND ND ND ND
ug/L 01/25/05 --10 ND ND ND ND ND
ug/L 07/06/05 --10 --ND --ND ND
ug/L 01/09/06 --10 ND ND ND ND ND
ug/L 07/12/06 --10 ND ND ND ND ND
ug/L 01/16/07 --10 ND ND ND ND ND
ug/L 07/02/07 --10 --ND --ND ND
ug/L 01/29/08 --10 ND ND ND ND ND
ug/L 07/17/08 --10 --ND --ND ND
ug/L 02/27/09 --10 ND ND ND ND ND
ug/L 07/16/09 --10 dry 8.45 J dry 5.87 J ND
ug/L 01/04/10 --10 ND 2.49 J ND ND ND
ug/L 07/01/10 --10 dry dry dry 1.37 B 1.80 J
ug/L 01/13/11 --10 ND ND ND ND ND
ug/L 07/21/11 --10 dry ND --ND ND
ug/L 01/16/12 --10 ND ND 2.35 J 1.42 J ND
ug/L 07/09/12 --10 dry ND dry ND ND
ug/L 01/14/13 --10 1.69 B 2.92 B ND 6.53 B 1.40 J
ug/L 07/09/13 --10 ND ND ND ND ND
ug/L 01/30/14 --10 ND ND ND ND ND
ug/L 07/08/14 --10 dry ND dry ND ND
ug/L 03/03/15 1.40 10 ND 6.99 B ND 4.03 B 1.66 J
ug/L 08/12/15 1.40 10 dry 58.2 dry 43.7 ND
ug/L 02/17/16 1.40 10 ND 13.8 ND 343 ND
ug/L 07/14/16 1.40 10 ND ND 7.29 J ND ND
ug/L 01/11/17 1.40 10 ND ND 3.08 J 2.12 J ND
ug/L 07/11/17 1.40 10 dry dry ND ND ND
September 2017 3 of 6 1239-651617.101
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SW-1 SW-3 SW-2 SW-4ParameterSample
Date
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
MDL
TABLE 6
Summary of Detected Constituents in Surface Water
Guilford County, North Carolina
Reporting
Units
DownstreamUpstreamSWS Reporting
Limit Blanks
Cobalt ug/L 01/16/07 --10 ND ND ND ND ND
(No SW Standard)ug/L 07/02/07 --10 --ND --ND ND
ug/L 01/29/08 --10 ND ND ND ND ND
ug/L 07/17/08 --10 --ND --ND ND
ug/L 02/27/09 --10 2.0 J ND ND ND ND
ug/L 07/16/09 --10 dry 1.96 J dry 1.69 J ND
ug/L 01/04/10 --10 0.961 J 2.050 J 0.97 J 1.65 J ND
ug/L 07/01/10 --10 dry dry dry 1.18 J ND
ug/L 01/13/11 --10 1.15 J ND ND ND ND
ug/L 07/21/11 --10 dry ND --ND ND
ug/L 01/16/12 --10 ND ND ND ND ND
ug/L 07/09/12 --10 dry ND dry ND ND
ug/L 01/14/13 --10 1.59 J 1.77 J ND 4.73 J ND
ug/L 07/09/13 --10 1.50 J ND ND ND ND
ug/L 01/30/14 --10 ND 1.58 J 1.27 J 1.91 J ND
ug/L 07/08/14 --10 dry ND dry ND ND
ug/L 03/03/15 1.10 10 ND 2.65 J ND 1.35 J ND
ug/L 08/12/15 1.10 10 dry 20.2 dry 17.8 ND
ug/L 02/17/16 1.10 10 1.18 J 6.32 J 1.36 J 168 ND
ug/L 07/14/16 1.10 10 1.34 J ND 2.94 J ND ND
ug/L 01/11/17 1.10 10 ND ND 1.95 J 1.82 J ND
ug/L 07/11/17 1.10 10 dry dry ND ND ND
Copper ug/L 01/16/07 --10 ND 1.50 J 1.00 J ND ND
Freshwater Acute SW Standard = 3.6 ug/L ug/L 07/02/07 --10 dry ND dry ND ND
Freshwater Chronic SW Standard = 2.7 ug/L ug/L 01/29/08 --10 1.00 J 1.20 J ND 1.10 J ND
ug/L 07/17/08 --10 dry ND dry 1.90 J ND
ug/L 02/27/09 --10 1.90 J ND 1.80 J ND ND
ug/L 07/16/09 --10 dry 7.67 B dry 5.37 B 6.42 J
ug/L 01/04/10 --10 2.39 J 4.12 J ND 2.06 J ND
ug/L 07/01/10 --10 dry dry dry ND ND
ug/L 01/13/11 --10 ND ND ND ND ND
ug/L 07/21/11 --10 dry 1.69 B --1.62 B 1.65 J
ug/L 01/16/12 --10 ND ND 2.89 J ND ND
ug/L 07/09/12 --10 dry ND dry ND ND
ug/L 01/14/13 --10 5.01 J 4.24 J ND 13.4 ND
ug/L 07/09/13 --10 1.63 J 2.44 J ND 2.28 J ND
ug/L 01/30/14 --10 ND ND ND ND ND
ug/L 07/08/14 --10 dry ND dry 1.63 J ND
ug/L 03/03/15 1.60 10 3.91 J 10.4 3.79 J 8.05 J ND
ug/L 08/12/15 1.60 10 dry 52.4 dry 43.3 ND
ug/L 02/17/16 1.60 10 4.03 B 14.4 B 2.76 B 357 3.66 J
ug/L 07/14/16 1.60 10 ND ND 7.98 B 2.96 B 3.50 J
ug/L 01/11/17 1.60 10 6.07 B 4.16 B 7.82 B 7.32 B 6.33 J
ug/L 07/11/17 1.60 10 dry dry 2.29 J 1.73 J ND
Lead ug/L 10/08/03 --10 ND ND ND ND ND
Freshwater Acute SW Standard = 14 ug/L ug/L 01/23/04 --10 ND ND ND ND ND
Freshwater Chronic SW Standard = 0.54 ug/L ug/L 07/08/04 --10 ND ND ND ND ND
ug/L 01/25/05 --10 ND ND ND ND ND
ug/L 07/06/05 --10 dry ND dry ND ND
ug/L 01/09/06 --10 ND ND ND ND ND
ug/L 07/12/06 --10 ND ND ND ND ND
ug/L 01/16/07 --10 4.6 J ND 2.6 J 3.6 J ND
ug/L 07/02/07 --10 dry ND dry ND ND
ug/L 01/29/08 --10 ND ND ND ND ND
ug/L 07/17/08 --10 dry ND dry ND ND
ug/L 02/27/09 --10 ND ND ND ND ND
ug/L 07/16/09 --10 dry 4.30 J dry 4.68 J ND
ug/L 01/04/10 --10 1.68 B 4.41 B ND ND 1.24 J
ug/L 07/01/10 --10 dry dry dry 2.56 J ND
ug/L 01/13/11 --10 ND ND ND ND ND
ug/L 07/21/11 --10 dry ND --2.32 J ND
ug/L 01/16/12 --10 ND ND ND ND ND
ug/L 07/09/12 --10 dry ND dry ND ND
ug/L 01/14/13 --10 ND ND ND 3.58 J ND
ug/L 07/09/13 --10 ND ND ND ND ND
ug/L 01/30/14 --10 ND ND ND ND ND
ug/L 07/08/14 --10 dry ND dry ND ND
ug/L 03/03/15 2.10 10 ND ND ND ND ND
ug/L 08/12/15 3.10 10 dry 15.7 dry 14.8 ND
ug/L 02/17/16 3.10 10 ND ND ND 32.5 J ND
ug/L 07/14/16 3.10 10 ND ND ND ND ND
ug/L 01/11/17 3.10 10 ND ND ND ND ND
ug/L 07/11/17 3.10 10 dry dry ND ND ND
September 2017 4 of 6 1239-651617.101
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SW-1 SW-3 SW-2 SW-4ParameterSample
Date
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
MDL
TABLE 6
Summary of Detected Constituents in Surface Water
Guilford County, North Carolina
Reporting
Units
DownstreamUpstreamSWS Reporting
Limit Blanks
Nickel ug/L 01/16/07 --50 2.9 J ND ND ND ND
Freshwater Acute SW Standard = 140 ug/L ug/L 07/02/07 --50 dry ND dry 1.7 J ND
Freshwater Chronic SW Standard = 16 ug/L ug/L 01/29/08 --50 4.8 J ND ND ND ND
ug/L 07/17/08 --50 dry ND dry ND ND
ug/L 02/27/09 --50 2.4 J ND ND ND ND
ug/L 07/16/09 --50 dry 3.92 B dry 3.42 B 3.80 J
ug/L 01/04/10 --50 ND ND ND ND ND
ug/L 07/01/10 --50 dry dry dry ND ND
ug/L 01/13/11 --50 ND ND ND ND ND
ug/L 07/21/11 --50 dry ND --ND ND
ug/L 01/16/12 --50 ND ND ND ND ND
ug/L 07/09/12 --50 dry ND dry ND ND
ug/L 01/14/13 --50 2.29 J ND ND 2.84 J ND
ug/L 07/09/13 --50 1.91 J ND ND ND ND
ug/L 01/30/14 --50 ND ND ND ND ND
ug/L 07/08/14 --50 dry ND dry ND ND
ug/L 03/03/15 1.80 50 ND 3.67 J ND ND ND
ug/L 08/12/15 1.80 50 dry 29.9 J dry 25.3 J ND
ug/L 02/17/16 1.80 50 ND 8.79 J ND 230 ND
ug/L 07/14/16 2.20 50 3.23 B ND 5.87 B 2.24 B 11.9 J
ug/L 01/11/17 2.20 50 2.60 J ND 3.47 J 3.28 J ND
ug/L 07/11/17 2.20 50 dry dry ND ND ND
Selenium ug/L 10/08/03 --20 ND ND ND ND ND
Freshwater Acute SW Standard = 5 ug/L ug/L 01/23/04 --20 ND ND ND ND ND
Freshwater Chronic SW Standard = 5 ug/L ug/L 07/08/04 --20 ND ND ND ND ND
ug/L 01/25/05 --20 ND ND ND ND ND
ug/L 07/06/05 --20 --ND --ND ND
ug/L 01/09/06 --20 ND ND ND ND ND
ug/L 07/12/06 --20 ND ND ND ND ND
ug/L 01/16/07 --10 ND ND ND ND ND
ug/L 07/02/07 --10 --ND --ND ND
ug/L 01/29/08 --10 ND ND ND ND ND
ug/L 07/17/08 --10 --ND --ND ND
ug/L 02/27/09 --10 4.7 J ND 5.8 J ND ND
ug/L 07/16/09 --10 dry ND dry ND ND
ug/L 01/04/10 --10 ND ND ND ND ND
ug/L 07/01/10 --10 dry dry dry ND ND
ug/L 01/13/11 --10 ND ND ND ND ND
ug/L 07/21/11 --10 dry ND --ND ND
ug/L 01/16/12 --10 ND ND ND ND ND
ug/L 07/09/12 --10 dry ND dry ND ND
ug/L 01/14/13 --10 ND ND ND ND ND
ug/L 07/09/13 --10 ND ND ND ND ND
ug/L 01/30/14 --10 ND ND ND ND ND
ug/L 07/08/14 --10 dry ND dry ND ND
ug/L 03/03/15 5.00 10 ND ND ND ND ND
ug/L 08/12/15 5.00 10 dry ND dry ND ND
ug/L 02/17/16 5.00 10 ND ND ND ND ND
ug/L 07/14/16 6.20 10 ND ND ND ND ND
ug/L 01/11/17 6.20 10 ND ND ND ND ND
ug/L 07/11/17 6.20 10 dry dry ND ND ND
Silver ug/L 10/08/03 --10 ND ND ND ND ND
Freshwater Acute SW Standard = 30 ug/L ug/L 01/23/04 --10 ND ND ND ND ND
Freshwater Chronic SW Standard = 0.06 ug/L ug/L 07/08/04 --10 ND ND ND ND ND
ug/L 01/25/05 --10 ND ND ND ND ND
ug/L 07/06/05 --10 --ND --ND ND
ug/L 01/09/06 --10 ND ND ND ND ND
ug/L 07/12/06 --10 ND ND ND ND ND
ug/L 01/16/07 --10 ND ND ND ND ND
ug/L 07/02/07 --10 --ND --ND ND
ug/L 01/29/08 --10 ND ND ND ND ND
ug/L 07/17/08 --10 --ND --ND ND
ug/L 02/27/09 --10 ND ND ND ND ND
ug/L 07/16/09 --10 dry ND dry ND ND
ug/L 01/04/10 --10 ND ND ND ND ND
ug/L 07/01/10 --10 dry dry dry ND ND
ug/L 01/13/11 --10 ND ND ND ND ND
ug/L 07/21/11 --10 dry ND --ND ND
ug/L 01/16/12 --10 ND ND ND ND ND
ug/L 07/09/12 --10 dry ND dry ND ND
ug/L 01/14/13 --10 ND ND ND ND ND
ug/L 07/09/13 --10 ND ND ND ND ND
ug/L 01/30/14 --10 ND ND ND ND ND
ug/L 07/08/14 --10 dry ND dry ND ND
ug/L 03/03/15 1.90 10 ND ND ND ND ND
ug/L 08/12/15 1.90 10 dry ND dry ND 2.59 J
ug/L 02/17/16 1.90 10 ND ND ND ND ND
ug/L 07/14/16 1.90 10 ND ND ND ND ND
ug/L 01/11/17 1.90 10 ND ND ND ND ND
ug/L 07/11/17 1.90 10 dry dry ND ND ND
September 2017 5 of 6 1239-651617.101
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SW-1 SW-3 SW-2 SW-4ParameterSample
Date
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
MDL
TABLE 6
Summary of Detected Constituents in Surface Water
Guilford County, North Carolina
Reporting
Units
DownstreamUpstreamSWS Reporting
Limit Blanks
Thallium ug/L 01/16/07 --5.5 ND ND ND ND ND
(No SW Standard)ug/L 07/02/07 --5.5 dry ND dry ND ND
ug/L 01/29/08 --5.5 ND ND 0.041 J ND ND
ug/L 07/17/08 --5.5 dry ND dry ND ND
ug/L 02/27/09 --5.5 ND ND ND ND ND
ug/L 07/16/09 --5.5 dry ND dry ND ND
ug/L 01/04/10 --5.5 ND ND ND ND ND
ug/L 07/01/10 --5.5 dry dry dry ND ND
ug/L 01/13/11 --5.5 ND ND ND ND ND
ug/L 07/21/11 --5.5 dry ND --ND ND
ug/L 01/16/12 --5.5 ND ND ND ND ND
ug/L 07/09/12 --5.5 dry ND dry ND ND
ug/L 01/14/13 --5.5 ND ND ND ND ND
ug/L 07/09/13 --5.5 ND ND ND ND ND
ug/L 01/30/14 --5.5 ND ND ND ND ND
ug/L 07/08/14 --5.5 dry ND dry ND ND
ug/L 03/03/15 0.110 5.5 ND ND ND ND ND
ug/L 08/12/15 0.110 5.5 dry ND dry ND ND
ug/L 02/17/16 0.110 5.5 ND ND ND ND ND
ug/L 07/14/16 0.110 5.5 0.270 J 0.313 J 0.323 J 0.315 J ND
ug/L 01/11/17 0.110 5.5 ND ND ND ND ND
ug/L 07/11/17 0.110 6 dry dry 0.117 J ND ND
Vanadium ug/L 01/16/07 --25 ND ND ND ND ND
(No SW Standard)ug/L 07/02/07 --25 dry 2.1 J dry 2.6 J ND
ug/L 01/29/08 --25 ND ND ND ND ND
ug/L 07/17/08 --25 dry ND dry 1.7 J ND
ug/L 02/27/09 --25 ND ND ND ND ND
ug/L 07/16/09 --25 dry 23.4 J dry 16.1 J ND
ug/L 01/04/10 --25 1.27 J 7.24 J 0.821 J 4.46 J ND
ug/L 07/01/10 --25 dry dry dry 4.33 J ND
ug/L 01/13/11 --25 ND ND ND ND ND
ug/L 07/21/11 --25 dry 2.31 J --2.39 J ND
ug/L 01/16/12 --25 1.52 J 1.79 J 7.01 J 4.69 J ND
ug/L 07/09/12 --25 dry ND dry 1.81 J ND
ug/L 01/14/13 --25 3.46 J 6.21 J ND 14.0 J ND
ug/L 07/09/13 --25 ND 2.85 J ND 2.79 J ND
ug/L 01/30/14 --25 ND 1.53 J ND 2.17 J ND
ug/L 07/08/14 --25 dry 2.53 J dry 3.14 J ND
ug/L 03/03/15 1.40 25 ND 17.3 J ND 8.48 J ND
ug/L 08/12/15 1.40 25 dry 155 dry 118 ND
ug/L 02/17/16 1.40 25 ND 35.2 ND 853 ND
ug/L 07/14/16 1.40 25 ND ND 19.8 J 4.62 J ND
ug/L 01/11/17 1.40 25 ND ND 7.90 J 6.16 J ND
ug/L 07/11/17 1.40 25 dry dry ND ND ND
Zinc ug/L 01/16/07 --10 27.0 B 9.5 B 27.1 B 4.2 B 10.0
Freshwater Acute SW Standard = 36 ug/L ug/L 07/02/07 --10 dry ND dry 7.6 J ND
Freshwater Chronic SW Standard = 36 ug/L ug/L 01/29/08 --10 112 10.6 26.9 6.8 B 1.6 J
ug/L 07/17/08 --10 dry 3.8 J dry 4.1 J ND
ug/L 02/27/09 --10 29.8 13.8 7.8 J 13.2 ND
ug/L 07/16/09 --10 dry 14.0 B dry 26.9 B 20.5
ug/L 01/04/10 --10 24.0 11.9 15.3 7.12 B 2.25 J
ug/L 07/01/10 --10 dry dry dry 8.81 J ND
ug/L 01/13/11 --10 32.6 ND 7.26 J ND ND
ug/L 07/21/11 --10 dry ND --ND ND
ug/L 01/16/12 --10 23.1 11.2 7.09 J ND ND
ug/L 07/09/12 --10 dry ND dry ND ND
ug/L 01/14/13 --10 31.4 7.14 J 4.15 J 21.7 ND
ug/L 07/09/13 --10 9.74 J ND ND ND ND
ug/L 01/30/14 --10 33.7 9.78 J 17.5 7.46 J ND
ug/L 07/08/14 --10 dry ND dry 3.89 J ND
ug/L 03/03/15 3.80 10 36.9 20.7 19.5 10.6 ND
ug/L 08/12/15 3.80 10 dry 53.6 dry 55.1 ND
ug/L 02/17/16 3.80 10 16.7 20.1 14.4 306 ND
ug/L 07/14/16 4.40 10 6.34 J ND 5.57 J ND ND
ug/L 01/11/17 4.40 10 40.6 4.95 J 11.8 10.1 ND
ug/L 07/11/17 4.40 10 dry dry ND ND ND
September 2017 6 of 6 1239-651617.101
G:\PROJECTS\Waste Industries\High Point\1239651617 - WI HIGH POINT - NC\Phase 102 - 2nd SA WQMR\600 CALCULATIONS\WI of High Point C&D LF Tables July 2017.xlsx
SW-1 SW-3 SW-2 SW-4ParameterSample
Date
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
MDL
TABLE 6
Summary of Detected Constituents in Surface Water
Guilford County, North Carolina
Reporting
Units
DownstreamUpstreamSWS Reporting
Limit Blanks
Acetone ug/L 01/29/08 --100 ND ND ND ND ND
(No SW Standard)ug/L 07/17/08 --100 --ND --ND ND
ug/L 02/27/09 --100 ND ND ND ND ND
ug/L 07/16/09 --100 dry ND dry ND ND
ug/L 01/04/10 --100 ND ND ND ND 7.1 J
ug/L 07/01/10 --100 dry dry dry ND ND
ug/L 01/13/11 --100 ND ND ND ND ND
ug/L 07/21/11 --100 dry ND --ND ND
ug/L 01/16/12 --100 ND ND ND ND ND
ug/L 07/09/12 --100 dry ND dry ND ND
ug/L 01/14/13 --100 ND ND ND ND ND
ug/L 07/09/13 --100 ND ND ND ND ND
ug/L 01/30/14 --100 ND ND ND ND ND
ug/L 07/08/14 --100 dry ND dry ND ND
ug/L 03/03/15 1.2 100 ND 9.6 J ND 3.6 J ND
ug/L 08/12/15 1.2 100 dry ND dry ND ND
ug/L 02/17/16 1.2 100 ND ND ND ND ND
ug/L 07/14/16 10 100 ND ND ND ND ND
ug/L 01/11/17 10 100 ND ND ND ND 11 J
ug/L 07/11/17 10 100 dry dry ND ND ND
2-Butanone ug/L 01/29/08 --100 ND ND ND ND ND
(No SW Standard)ug/L 07/17/08 --100 --ND --ND ND
ug/L 02/27/09 --100 ND ND ND ND ND
ug/L 07/16/09 --100 dry ND dry ND ND
ug/L 01/04/10 --100 ND ND ND ND ND
ug/L 07/01/10 --100 dry dry dry ND ND
ug/L 01/13/11 --100 ND ND ND ND ND
ug/L 07/21/11 --100 dry ND --ND ND
ug/L 01/16/12 --100 ND ND ND ND ND
ug/L 07/09/12 --100 dry ND dry ND ND
ug/L 01/14/13 --100 ND ND ND ND ND
ug/L 07/09/13 --100 ND ND ND ND ND
ug/L 01/30/14 --100 ND ND ND ND ND
ug/L 07/08/14 --100 dry ND dry ND ND
ug/L 03/03/15 1.3 100 ND 3.9 J ND ND ND
ug/L 08/12/15 1.3 100 dry ND dry ND ND
ug/L 02/17/16 1.3 100 ND ND ND ND ND
ug/L 07/14/16 1.3 100 ND ND ND ND ND
ug/L 01/11/17 1.3 100 ND ND ND ND ND
ug/L 07/11/17 1.3 100 dry dry ND ND ND
Notes:
1. SW = surface water monitoring point
2. ug/L = micrograms per liter
3. J = estimated Value
4. B = blank-qualified data
5. ND = not detected at or above the stated reporting limit
7. (AL) = SW Standard is an action level
8. (N) = SW Standard is a narrative standard
9. --- = no data available
10. Bold = concentrations above Human Health or Chronic Surface Water Standard
11. Shaded and Bold = concentration above Acute and Chronic Surface Water Standards
12. Blanks = field, trip and laboratory blanks.
13. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/18/07
14. Data prior to 1/9/06 provided by Joyce Engineering, Inc.
6. Surface Water Standards for NC Appendix I constituents based on Class C Freshwater Aquatic Life stream classification per 15A NCAC 2B.
September 2017 1 of 2 1239-651617.101
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SW-1 SW-3 SW-2 SW-4
pH (Field)S.U.07/06/05 --6.49 --7.02
S.U.01/09/06 6.70 6.45 6.01 6.72
S.U.07/12/06 6.28 6.38 5.86 6.78
S.U.01/16/07 7.44 6.10 6.02 6.35
S.U.07/02/07 dry 6.95 dry 8.19
S.U.01/29/08 5.96 5.76 5.91 6.36
S.U.07/17/08 dry 7.24 dry 7.20
S.U.01/14/09 6.63 6.74 6.37 6.98
S.U.07/16/09 dry 6.65 dry 7.39
S.U.01/04/10 6.43 6.00 5.62 6.72
S.U.07/01/10 dry dry dry 7.62
S.U.01/13/11 5.84 6.69 6.30 6.86
S.U.07/21/11 dry 6.80 --7.35
S.U.01/16/12 7.12 6.30 5.95 7.31
S.U.07/09/12 dry 6.64 dry 7.07
S.U.01/14/13 6.64 7.01 6.51 7.15
S.U.07/09/13 5.33 6.40 6.23 6.31
S.U.01/30/14 7.13 6.50 6.12 7.45
S.U.07/08/14 dry 6.77 dry 7.53
S.U.03/03/15 7.16 6.54 6.03 6.90
S.U.08/12/15 dry 5.99 dry 8.74
S.U.02/17/16 5.81 6.06 5.85 7.53
S.U.07/14/16 6.30 6.06 6.97 7.54
S.U.01/11/17 5.24 5.64 5.43 5.86
S.U.07/11/17 dry 7.05 dry 7.48
Specific Conductance (Field)uS/cm 07/06/05 --407 --366
uS/cm 01/09/06 123 143 155 110
uS/cm 07/12/06 175 258 237 213
uS/cm 01/16/07 124 184 120 162
uS/cm 07/02/07 dry 298 dry 143
uS/cm 01/29/08 343 390 311 416
uS/cm 07/17/08 dry 317 dry 316
uS/cm 01/14/09 160 159 200 183
uS/cm 07/16/09 dry 257 dry 255
uS/cm 01/04/10 159 216 159 194
uS/cm 07/01/10 dry dry dry 333
uS/cm 01/13/11 378 419 270 340
uS/cm 07/21/11 dry 349 --245
uS/cm 01/16/12 159 182 162 159
uS/cm 07/09/12 dry 380 dry 311
uS/cm 01/14/13 218 286 282 264
uS/cm 07/09/13 432 268 313 240
uS/cm 01/30/14 234 275 239 221
uS/cm 07/08/14 dry 399 dry 314
uS/cm 03/03/15 264 198 254 197
uS/cm 08/12/15 dry 140 dry 138
uS/cm 02/17/16 155 181 165 117
uS/cm 07/14/16 312 284 307 314
uS/cm 01/11/17 326 336 253 302
uS/cm 07/11/17 dry 349 dry 258
Temperature (Field)oC 07/06/05 dry 23.3 dry 24.6oC01/09/06 10.78 7.15 7.30 9.61oC07/12/06 19.96 22.28 22.51 23.03oC01/16/07 10.70 11.80 11.60 11.50oC07/02/07 dry 20.87 dry 23.49oC01/29/08 8.39 6.21 6.93 6.99oC07/17/08 dry 20.94 dry 19.01oC01/14/09 6.17 5.63 4.98 4.78oC07/16/09 dry 20.68 dry 20.93oC01/04/10 3.37 1.19 1.43 1.63oC07/01/10 dry dry dry 18.27oC01/13/11 3.22 1.08 0.97 1.70oC07/21/11 dry 23.70 --27.15oC01/16/12 5.21 5.58 5.91 6.30oC07/09/12 dry 23.77 dry 28.19oC01/14/13 12.1 12.8 12.9 12.9oC07/09/13 21.03 23.01 23.06 25.16oC01/30/14 0.90 0.70 0.60 0.40oC07/08/14 dry 22.4 dry 24.0oC03/03/15 5.01 6.61 5.31 5.70oC08/12/15 dry 21.7 dry 24.1oC02/17/16 6.5 4.9 5.1 8.3oC07/14/16 23.5 23.8 23.2 26.3oC01/11/17 5.6 4.5 5.2 4.0oC07/11/17 dry 22.8 dry 24.0
Parameter Reporting
Units
Sample
Date
Upstream Downstream
TABLE 7
Summary of Field Parameters in Surface Water
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
Guilford County, North Carolina
September 2017 2 of 2 1239-651617.101
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SW-1 SW-3 SW-2 SW-4ParameterReporting
Units
Sample
Date
Upstream Downstream
TABLE 7
Summary of Field Parameters in Surface Water
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
Guilford County, North Carolina
Turbidity (Field)NTU 07/06/05 dry 15.5 dry 17.2
NTU 01/09/06 dry 61.3 dry 68.4
NTU 07/12/06 134 dry dry 5.1
NTU 01/16/07 5.8 37.7 39.5 32.3
NTU 07/02/07 dry 27.1 dry 124
NTU 01/29/08 3.4 100.0 15.2 94.9
NTU 07/17/08 dry 16.2 dry 17.7
NTU 01/14/09 12.6 8.87 16.6 15.2
NTU 07/16/09 dry 194 dry 125
NTU 01/04/10 10.2 33.2 18.7 54.7
NTU 07/01/10 dry dry dry 68.2
NTU 01/13/11 20.2 18.6 25.3 11.2
NTU 07/21/11 dry 19.8 --18.5
NTU 01/16/12 10.2 52.9 16.9 38.4
NTU 07/09/12 dry 23.7 dry 28.1
NTU 01/14/13 63.1 51.5 11.8 169
NTU 07/09/13 31.6 24.5 11.5 23.8
NTU 01/30/14 12.0 16.8 7.02 23.2
NTU 07/08/14 dry 15.3 dry 25.8
NTU 03/03/15 9.24 122 12.4 75.1
NTU 08/12/15 dry 927 dry >1000
NTU 02/17/16 13.9 212 13.1 >1000
NTU 07/14/16 23.2 122 12.1 25.0
NTU 01/11/17 28.4 58.5 7.09 68.1
NTU 07/11/17 dry 6.13 dry 5.29
Oxidation Reduction mV 01/29/08 165 202 214 182
Potential (Field)mV 07/17/08 dry 75 dry 76
mV 01/14/09 92.8 113.6 139.6 156.6
mV 07/16/09 dry 126.1 dry 45.5
mV 01/04/10 82.5 122.6 176.4 5.8
mV 07/01/10 dry dry dry 140.9
mV 01/13/11 141.9 191.8 224.4 145.8
mV 07/21/11 dry 45.8 --55.8
mV 01/16/12 31.9 137.1 218.6 64.6
mV 07/09/12 dry -7.3 dry -4.3
mV 01/14/13 --------
mV 07/09/13 67.0 33.4 21.1 71.7
mV 01/30/14 18.1 31.7 96.4 -3.0
mV 07/08/14 dry 43.0 dry 280.2
mV 03/03/15 -0.8 131.9 143.9 73.2
mV 08/12/15 dry 32.0 dry 47.6
mV 02/17/16 140.1 184.6 240.4 288.2
mV 07/14/16 -12.1 70.1 92.7 81.1
mV 01/11/17 201.6 226.5 250.6 216.9
mV 07/11/17 dry 103.0 dry 140.1
Dissolved Oxygen (Field)mg/L 01/29/08 11.03 11.61 11.13 11.98
mg/L 07/17/08 dry 3.33 dry 7.08
mg/L 01/14/09 11.52 12.78 13.94 13.96
mg/L 07/16/09 dry 6.33 dry 7.76
mg/L 01/04/10 12.43 14.99 15.13 15.05
mg/L 07/01/10 dry dry dry 8.71
mg/L 01/13/11 6.81 15.62 15.94 16.10
mg/L 07/21/11 dry 5.70 --5.41
mg/L 01/16/12 10.68 13.44 14.39 13.62
mg/L 07/09/12 dry 7.00 dry 9.31
mg/L 01/14/13 --------
mg/L 07/09/13 5.31 7.12 5.97 8.51
mg/L 01/30/14 12.43 13.28 14.04 14.86
mg/L 07/08/14 dry 6.05 dry 8.06
mg/L 03/03/15 9.90 11.23 11.65 11.50
mg/L 08/12/15 dry 8.96 dry 8.50
mg/L 02/17/16 8.95 9.52 7.83 10.03
mg/L 07/14/16 2.91 5.55 5.71 6.45
mg/L 01/11/17 9.64 11.55 10.44 12.71
mg/L 07/11/17 dry 6.08 dry 6.01
Notes:
1. SW = surface water monitoring point
2. mg/L = milligrams per liter
3. S.U. = Standard Units
4. NTU = Nephelometric Turbidity Units
5. uS = microsiemens
6. --- = no data available
7. Data prior to 1/9/06 provided by Joyce Engineering, Inc.

FIGURE
ENON-MECKLENBURG-CECIL (NC083)WE =740.9777.9WE =CONCCONCMW-4D 770 780760770780790790800810820830840780760750
800790800810820830840
810810810
810810
810820810800800810820840830820830820
81079080079
0
79
0
800790
800800800780790 780800800800790800 810 820 830
770780760
77078
0
78
0 820
800
810
850 850790800810820830840780 770760750740750740750730730740730730740750750740760770780830840800790810820750760730740770780790780740750770760
740
760750
77
0
780
780790
780
7
70
790
79078
0
79
0
800800810810800800800
800780790770760740750760750730740730730730 760750740720720720720730740720720740730750740730750760770780760770760750
813.6811.4823.3811.0799.2817.6820.4823.5810.9810.3810.2811.8831.1832.8820.0821.1816.6WE 792.9'795.3795.1795.5801.7804.2810.4849.0849.3811.4809.4809.7817.1811.1809.6810.7826.8798.3811.0820.6804.3798.9810.2797.9795.4810.5804.6799.3795.8801.7802.9802.9800.9802.1799.1784.1784.9788.8803.2801.8785.4784.1850.6850.4833.0830.8849.5777.0753.0743.3752.5744.5781.3770.3779.7785.7768.0772.3798.3789.3784.3805.0813.6809.3800.1803.4802.0783.0792.4744.2743.7WE 741.6'745.1743.9740.3724.1723.2801.1809.1RIP-RAPRIP
-RA
PSCALESEND UNKNOW 601763.88780
780770760750740730720720750760770740730790
790i1i2i3BH-4BH-3BH-2BH-1EXISTING OVERHEAD POWER LINESMAPPING LIMITS.RECLAMATIONFACILITYMAINTENANCEBUILDINGFACILITY PROPERTYBOUNDARYSW-2SW-1SW-3SB-3MW-5MW-4SMW-3MW-1MW-2MW-8MW-7SMW-6MW-4DSCALEHOUSEMW-7DSW-4 CREEKFUTUREDISPOSALAREASPHASE 2DISPOSALAREAPHASE IDISPOSALAREABH-4AMW-2AMW-1794.95747.30737.50727.31734.23736.38729.18732.79758.40747.32723.20CONSULTANTDESIGNPREPAREDREVIEWAPPROVEDYYYY-MM-DDTITLEPROJECT No.Rev.PROJECTCLIENTPath: \\greensboro\CAD\_2012\12396516 - WI - High Point\PRODUCTION\_F - 2016 GW\ | File Name: 1239651616A002.dwg
IF THIS MEASUREMENT DOES NOT MATCH WHAT IS SHOWN, THE SHEET SIZE HAS BEEN MODIFIED FROM: ANSI D01 in1239651617PHASE102FIGURE10 2017-9-06ABRDYRDYRRPKWASTE INDUSTRIES OF HIGH POINT CONSTRUCTION ANDDEMOLITION DEBRIS LANDFILL AND RECLAMATION FACILITYGUILFORD COUNTY, NORTH CAROLINAGROUNDWATER CONTOUR MAPJULY 11, 20170FEET200 400SCALELEGENDEXISTING 10' CONTOURSEXISTING 2' CONTOURSPROPERTY LINESTREAMTREELINEEXISTING ROADPROPOSED OR EXISTING LIMITS OF WASTEMONITORING WELL LOCATION IDENTIFICATION ANDGROUNDWATER ELEVATIONSURFACE WATER MONITORING POINTPROPOSED SURFACE WATER MONITORING POINTBENCH MARKGAS VENTSEDIMENT BASINGROUNDWATER SURFACE CONTOURSGROUNDWATER FLOW SEGMENT USED TOCALCULATE GRADIENTi1MW-3SW-1BM-1SB-1760737.501. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET3. GROUNDWATER ELEVATIONS MEASURED ON JULY 11, 2017.4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN ANDEXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS AND KNOWN FIELDCONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUALCONDITIONS.5. GROUNDWATER CONTOURS LINES SHOW THE WATER TABLE SHAPE AND ELEVATION.THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT ACONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION ISGENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TOTHE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS.6. THE GROUNDWATER ELEVATIONS FOR MW-4D AND MW-7D WERE NOT USED IN THECONSTRUCTION OF GROUNDWATER CONTOURS.7. DRAWING BASED ON SITE PLAN PLAN PREPARED BY JOYCE ENGINEERING, INC DATEDJULY 7, 2004.8. UPDATED TOPOGRAPHY PROVIDED FROM AERIAL SURVEY PREPARED BY SURVEYINGSOLUTIONS, P.C., PHOTOGRAPHY DATE FEBRUARY 6, 2017.SITESITE LOCATION MAPNOTESGOLDER ASSOCIATES NC, INC.PG C-399WASTE INDUSTRIES USA, INC.SW-2A

APPENDIX A
GROUNDWATER AND SURFACE WATER SAMPLING LOGS

Caption Text

APPENDIX B
JULY 2017 GROUNDWATER AND SURFACE WATER CERTIFICATE-OF-ANALYSIS,
CHAIN-OF-CUSTODY FORM, AND LABORATORY DATA REVIEW

Caption Text
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Page 1 of 1
GOLDER ASSOCIATES NC, INC.
QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 2 of 4

2.0 SAMPLE HOLDING TIMES

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

3.0 LABORATORY QUALITY CONTROL REVIEW

WB Laboratory analyzed at least one internal blank for each method, where applicable.

WB Laboratory blank is interference-free.

WB Surrogate recoveries are provided for each analytical method, where applicable.

WB Surrogate recoveries for each method are within the acceptable limits (i.e., at least
50% of the surrogates were within range).

WB MS/MSD/LCS data results are provided for each analytical method.

WB MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at
least 1 of the 3 were within range).

 The spike recovery of Toluene was outside of control limits for the 8260B MS
sample. The QC batch was approved based on acceptable LCS recovery of this
analyte.
 The spike recoveries of Arsenic, Iron, and Silver were outside of control limits
for the 6010D MS, MSD, and/or Post Spike samples. The QC batch was
approved based on acceptable LCS recovery of these elements.
 The spike recoveries of Alkalinity and Sulfate were outside of control limits for
the MS and /or MSD samples. The QC batches were approved based on
acceptable LCS recovery of these analytes.
GOLDER ASSOCIATES NC, INC.
QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 3 of 4

 The spike recovery of Antimony could not be accurately calculated for the
6020B MS and MSD samples due to the combined concentration of Antimony in
the source sample and the added spike exceeding the calibration curve of the
instrument. The spike recovery of Silver was outside of control limits for the
6010D Post Spike sample. The QC batches were approved based on
acceptable LCS recovery of these elements.
 The spike recoveries of Alkalinity and Sulfate were outside of control limits for
the MS or MSD samples. The QC batches were approved based on acceptable
LCS recovery of these analytes.

4.0 ANALYTE LISTS/METHODS

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

WB Proper EPA SM 2540C-1997 analytical methods were used for analysis.

5.0 DATA REPORTING

WB All analytical reporting associated with the event was performed by the contracted
lab.

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

 Field Blank:
• Barium @ 1.39 ug/L (J)

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

 Sulfate:
• MW-1 (3x) and MW-6 (3x)
 Chloride:
• MW-2 (4x) and MW-6 (3x)
 VOAs:
• MW-2 (10x)
 Selenium:
• MW-2 (5x)
 Alkalinity:
• MW-2 (10x), MW-5 (2x), MW-6 (5x), MW-8 (5x), and AMW-2 (2x)
GOLDER ASSOCIATES NC, INC.
QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW
Page 4 of 4

WB The report provides the reporting limit for each constituent.

WB The results were reported at or below their proper reporting limits (i.e., MDLs with
SWSLs reported). Those that are not reported correctly are listed below (by
constituent) with the proper reporting limit listed beside them. State if the reporting
limit error is due to dilutions.

WB No organic or organic constituents were reported above their respective NC 2L
Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above
applicable surface water standards in surface water points.

 Benzene (NC 2L = 1 ug/L)
• MW-6 @ 1.7 ug/L
 Cobalt (SWS GWPS = 1 ug/L)
• MW-2 @ 10.7 ug/L
• MW-6 @ 10.4 ug/L
• MW-8 @ 6.25 ug/L (J)
• AMW-1 @ 5.03 ug/L (J)
• AMW-2 @ 11.1 ug/L
 Iron (NC 2L = 300 ug/L)
• MW-2 @ 33200 ug/L
• MW-4S @ 1160 ug/L
• MW-5 @ 44100 ug/L
• MW-6 @ 7870 ug/L
• MW-8 @ 3940 ug/L
• AMW-1 @ 1290 ug/L
• AMW-2 @ 2590 ug/L
 Manganese (NC 2L = 50 ug/L)
• MW-2 @ 18200 ug/L
• MW-5 @ 1940 ug/L
• MW-6 @ 3760 ug/L
• MW-8 @ 8540 ug/L
• AMW-1 @ 2930 ug/L
• AMW-2 @ 1670 ug/L
 Tetrahydrofuran (MRL = 1.0 ug/L)
• MW-6 @ 21 ug/L
• MW-8 @ 2.2 ug/L
• AMW-2 @ 18 ug/L
 Total Dissolved Solids (NC 2L =
1000 mg/L)
• MW-2 @ 1100 mg/L
• MW-6 @ 1300 mg/L
 Vanadium (NC 2L = 0.3 ug/L)
• MW-2 @ 2.79 ug/L
• MW-4S @ 1.69 ug/L (J)
• MW-5 @ 1.89 ug/L
• MW-6 @ 2.10 ug/L (J)
• MW-7S @ 9.77 ug/L (J)

WB No inorganic or organic constituents were detected in a well or surface water point at
quantified concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).

WB Other report issues/Communications with laboratory/etc.:

 Sample MW-2 was processed at dilutions for the 8260B and Selenium (6010D)
analyses due to matrix interference (foaming in the 8260B), resulting in elevated
reporting limits. Methylene Chloride was detected in this sample; this is a
common laboratory contaminant.
 All samples received under this work order arrived in acceptable conditions. The
samples were not checked for residual chlorine, as it is not required. Samples
SW-1 and SW-2 were not collected, as there was no flow at the time of collection.

APPENDIX C
STATISTICAL EVALUATION WORKSHEETS AND STATS SUMMARY TABLE

Septembert 2017 1 of 1 1239651617.102
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NC 2L GWPS Interwell Intrawell
MW-2 10.7 --32.4 Not SSI
MW-6 10.4 --39.6 Not SSI
AMW-2 11.1 10.4 --SSI / Insuffcient Data for Intrawell Statistics
MW-2 33200 --70828 Not SSI
MW-4S 1160 ----Not SSI
MW-5 44100 --92722 Not SSI
MW-6 7570 --10356 Not SSI
MW-8 3940 --6657 Not SSI
AMW-1 1290 ----Not SSI
AMW-2 2590 26.7 --SSI / Insuffcient Data for Intrawell Statistics
MW-2 18200 --33206 Not SSI
MW-5 1940 --4804 Not SSI
MW-6 3760 --5714 Not SSI
MW-8 8540 7840 4887 SSI
AMW-1 2930 2960 --SSI / Insuffcient Data for Intrawell Statistics
AMW-2 1670 1570 --SSI / Insuffcient Data for Intrawell Statistics
MW-2 1100 --1587 Not SSI
MW-6 1300 --1478 Not SSI
Notes:1. Shaded values represent apparent statistically significant increases (SSIs) over background concentrations.
2. Statistical worksheets are provided as Appendix C.
3. ug/L = micrograms per liter
4. mg/L = milligrams per liter
5. -- = not available
Total Dissolved Solids mg/L 1000 --506
Statistical Determination
Dissolved
Constituent
Concentration
Summary of Statistical Analysis
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
Guilford County, North Carolina
July 2017
Detected Monitoring
Constituent Reporting Units
Groundwater Standard Downgradient
Monitoring Well
Constituent
Concentration
Statistical Analysis
5.00Cobaltug/L --1
Manganese ug/L 50 --50.6
Iron ug/L 300 --2530

APPENDIX D
SOIL AND STREAM SEDIMENT DATA

Caption Text
Guidance for Developing Eco-SSLs November 20032 - 9
Table 2.3. Mean Reported Soil Metal Background Concentrations (mg/kg dry weight) by State*AluminumAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronManganeseNickelLeadSeleniumSilverVanadiumZincAlabama 23100 3.6 4.7 200 0.6 30.6 4.4 9.6 11950 420 11 9.3 0.3 38 26
Arkansas 33429 1.2 9.7 336 0.9 53.1 12 17 19857 731 18 21 0.7 52 39
Arizona 32933 1.4 9.6 364 1.0 0.4 37.3 9.9 23 20787 447 23 16 0.4 0.5 42 51
California 75633 0.8 5.1 598 1.1 0.4 119.9 14 39 36867 640 48 26 0.2 0.8 118 113
Colorado 61557 1.1 6.7 662 1.4 41.7 6.8 21 23048 343 13 31 0.4 74 87
Connecticut 85000 4.1 400 0.5 40.0 7.5 15 17500 450 13 5.0 0.8 60 40
Delaware 22500 1.0 1.4 400 0.5 30.0 3.3 5.0 7500 85 6.0 15 0.3 20 23
Florida 9944 0.9 3.0 48 0.6 0.1 15.4 1.6 5.6 3705 86 8.5 12 0.3 0.5 11 12
Georgia 38250 1.0 5.0 232 0.6 32.4 6.9 21 16976 252 17 19 0.4 43 47
Iowa 64667 1.0 7.3 617 1.3 64.7 11 31 23278 603 26 19 0.4 97 57
Idaho 58500 1.0 6.4 757 1.1 52.1 12 28 32000 580 22 22 0.3 90 83
Illinois 48714 1.1 7.1 551 0.7 48.4 9.8 24 19159 646 19 39 0.5 62 67
Indiana 50000 1.0 7.5 500 0.7 46.8 10 27 21364 518 18 18 0.4 74 56
Kansas 61818 1.1 6.8 694 1.0 49.0 8.9 25 18788 452 17 32 0.4 77 67
Kentucky 54123 1.0 7.8 349 1.1 79.8 11 17 30432 483 23 16 0.5 66 35
Louisiana 42188 1.0 7.6 441 0.6 60.8 8.6 33 19688 470 33 16 0.7 76 55
Massachusetts 34083 1.0 8.6 203 1.3 0.2 39.5 7.8 16 19000 439 13 13 1.9 87 54
Maryland 39167 1.2 3.8 393 1.3 47.9 7.5 20 28571 291 13 22 0.2 63 39
Maine 65385 1.0 9.4 319 1.6 71.2 10 28 45385 581 30 19 0.7 98 80
Michigan 10964 1.3 4.2 127 0.7 0.9 13.8 4.6 12 10520 230 12 9.2 0.3 0.5 44 33
Minnesota 49457 1.0 5.5 571 0.7 0.3 25.4 7.2 20 19581 583 14 9.9 0.3 72 38
Missouri 42094 1.0 10 499 1.0 50.0 12 19 24733 940 20 23 0.5 72 53
Mississippi 45368 1.0 8.8 390 0.9 53.2 12 20 19684 471 21 18 0.5 68 45
Montana 70938 1.1 8.8 739 1.1 63.3 7.5 29 27766 366 20 14 0.4 101 69
Nebraska 59474 1.0 5.5 711 1.1 32.5 5.9 15 16000 306 15 16 0.4 62 54
North Carolina 60105 1.0 4.8 356 0.6 64.8 15 34 37053 563 24 17 0.4 107 56
North Dakota 62857 1.0 7.0 682 0.9 53.2 6.9 23 25357 530 20 13 0.4 83 64
New Hampshire 66667 4.4 500 2.3 0.6 18.4 5.3 12 33333 633 10 28 0.3 57 23
New Jersey 10075 1.4 7.0 54 0.3 0.3 13.9 1.7 14 11632 221 3.8 35 0.9 30 22
New Mexico 54423 1.0 5.9 727 1.0 55.5 8.8 21 20898 367 28 18 0.3 72 44
Nevada 66078 1.0 9.0 822 1.3 36.8 8.4 25 22725 481 15 25 0.3 78 69
New York 58800 1.0 6.4 666 1.4 0.2 66.9 9.1 36 38900 418 21 20 0.3 132 82
Ohio 54615 12 469 1.0 55.0 13 28 27308 550 25 23 0.6 88 69
Oklahoma 39200 1.0 7.0 430 1.1 46.0 7.1 16 19320 465 15 18 0.3 50 50
Oregon 94412 1.2 5.1 682 0.9 121.6 16 53 50147 725 23 15 0.3 168 70
Pennsylvania 63438 1.0 13 366 1.4 52.8 15 37 36063 609 24 23 0.5 80 81
Rhode Island 100000 3.5 500 0.5 50.0 10 15 30000 500 15 15 0.9 70 30
South Carolina 39143 3.9 151 1.4 21.4 3.5 16 12500 87.1 7.8 5.0 0.3 45 25
South Dakota 74333 1.3 8.5 1043 1.4 58.7 7.7 29 25667 1013 28 16 0.5 108 75
Tennessee 31894 0.7 16 193 0.8 0.2 40.3 14 17 28479 1112 18 23 0.6 1.2 49 57
Texas 41958 1.1 6.4 404 0.9 39.6 5.3 15 16328 303 12 14 0.3 52 39
Utah 45638 1.1 8.0 493 0.9 45.6 6.6 26 18830 371 13 35 0.3 70 96
Virginia 60438 1.2 5.1 436 0.9 54.3 9.7 33 27750 441 17 36 0.4 77 233
Vermont 56667 3.6 333 1.7 66.7 12 18 30000 800 25 20 0.4 70 43
Washington 66834 1.0 4.5 606 0.9 0.8 49.9 18 31 42635 760 23 14 0.3 0.7 160 78
Wisconsin 48000 1.0 4.4 543 2.0 40.3 7.7 12 15667 365 14 12 0.3 48 44
West Virginia 67000 1.3 8.6 360 1.0 46.0 14 22 28500 770 23 17 0.5 65 60
Wyoming 56125 1.1 6.5 756 0.7 47.9 8.3 21 25250 416 16 17 0.5 84 57
* Summary of background soil concentration data provided as Attachment 1-4.
September 2017 1 of 1 1239651617.102
G:\PROJECTS\Waste Industries\High Point\1239651617 - WI HIGH POINT - NC\Phase 102 - 2nd SA WQMR\600 CALCULATIONS\WI of High Point C&D LF Tables July 2017.xlsx
NURE
Record ID Lab ID
Collection
Date Datum Latitude Longitude Medium Source Units Cobalt Iron Manganese
5289485 C-110775 07/21/76 NAD27 36.2239 -80.0316 Sediment Stream ppm 8 2.6 373
5289485 C-110871 07/21/76 NAD27 36.2239 -80.0316 Sediment Stream ppm 8 2.6 363
5299850 C-210800 07/23/76 NAD27 36.1404 -79.8577 Sediment Stream ppm 15 3.6 1030
5282810 C-110092 09/12/76 NAD27 35.9952 -80.2418 Sediment Stream ppm <2 1.2 175
5282670 C-110270 09/09/76 NAD27 35.9945 -80.0553 Sediment Stream ppm 12 3.7 879
5286508 C-143285 07/21/76 NAD27 35.9839 -79.8933 Sediment Stream ppm 19 4.6 1350
5299838 C-210846 07/22/17 NAD27 36.0091 -79.6967 Sediment Stream ppm 12 3.7 1240
5282822 C-110100 09/12/76 NAD27 35.9098 -80.214 Sediment Stream ppm <2 1.6 699
5286506 C-110103 07/20/76 NAD27 35.9408 -79.9033 Sediment Stream ppm 6 2.4 606
5286506 C-110855 07/20/76 NAD27 35.9408 -79.9033 Sediment Stream ppm 6 2.3 536
5286519 C-143841 07/22/76 NAD27 35.9399 -79.6065 Sediment Stream ppm 4 1.1 519
5287114 C-143617 12/01/76 NAD27 35.805 -79.9971 Sediment Stream ppm 18 5.0 1780
5287156 C-143520 12/05/76 NAD27 35.7936 -79.7273 Sediment Stream ppm 16 3.8 1150
5282722 C-210888 09/10/76 NAD27 35.7553 -80.0672 Sediment Stream ppm 24 6.0 1790
Average 11 3.2 892
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 High Point C&D Landfill
7. Source of data is the United States Geological Survey National Geochemical Survey Database.
APPENDIX D
USGS National Geochemical Survey Database Summary
Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16
Guilford County, North Carolina

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