8202_SampsonCoCDLF_20141117_GWMReport_DIN28239

SECOND SEMI-ANNUAL 2014
SAMPLING EVENT
Sampson County Disposal, LLC
Active MSW and C&D Landfills,
Permit No. 82-02
Sampson County, North Carolina

Submitted To:

Sampson County Disposal, LLC 7434 Roseboro Highway (NC Highway 24) Roseboro, NC 28382

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

January 2015 073-9603714.100

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January 26, 2015 073-9603714.100
Mr. Ervin Lane
Department of Environment and Natural Resources Division of Waste Management, Solid Waste Section
1646 Mail Service Center Raleigh, North Carolina 27699-1646

RE: WATER QUALITY MONITORING REPORT, SECOND SEMI-ANNUAL 2014 SAMPLING EVENT SAMPSON COUNTY DISPOSAL, LLC ACTIVE MSW AND C&D LANDFILLS PERMIT NO. 82-02
SAMPSON COUNTY, NORTH CAROLINA
Dear Ervin,
On behalf of Sampson County Disposal, LLC (Sampson County), a subsidiary of Waste Industries USA,
Inc. (Waste Industries), Golder Associates NC, Inc. (Golder) is submitting the enclosed Water Quality Monitoring Report, which documents the results of the November 17-19, 2014, compliance monitoring
event at the above-referenced facility.
Groundwater, surface water, and leachate samples were analyzed for North Carolina (NC) Appendix I
constituents, with the exception of MW-100B, which was only analyzed for the NC Appendix I list of inorganic constituents per the approved monitoring plan. Samples for the Construction and Demolition
(C&D) landfill wells were also analyzed for the other required parameters for C&D landfills, as specified in Title 15A NCAC 13B.0544 including tetrahydrofuran, and the leachate sample was also analyzed for
additional required parameters.
As presented, four inorganic constituents (barium, cobalt, nickel, and zinc) were detected at
concentrations above their respective Solid Waste Section Limits (SWSLs) in samples from one or more downgradient compliance monitoring points at the active MSW landfill during the November 2014
monitoring event. The concentrations of cobalt in samples from one or more downgradient monitoring well were reported above the establish groundwater standard and the SWSL. As allowed by 15A NCAC
13B. 1632 (g) and (h), statistical analyses were performed to determine the source of above-standard concentration of cobalt reported in samples from this downgradient monitoring point. Based on statistical
analyses, these cobalt concentrations were below background and are considered representative of naturally occurring conditions and no further action is warranted.
At the C&D facility, four NC Appendix I inorganic constituents (barium, chromium, copper, and zinc) were reported at concentrations greater than their respective SWSLs in samples from compliance monitoring
wells during the November 2014 monitoring event. The concentration of chromium was reported to be above the NC2L in the sample from MW-4N. Statistical analyses were performed to determine if the
reported concentration represents a statistically significant increase over background concentrations. Based on the results of the statistical analysis, the reported concentration of chromium is not statistically
significant and no further action is warranted as it is interpreted to represent naturally occurring conditions.
Indicator parameters iron and manganese were also detected at concentrations above their respective SWSLs and NC 2L Groundwater Standards in samples from one or more downgradient wells during the
event, as they have been during previous events. Based on historical data, no further action is necessary.

Golder Associates NC, Inc. 5B Oak Branch Drive Greensboro, NC. 27407 USA Tel: [phone] Fax: [phone] www.golder.com
Golder Associates: Operations in Africa, Asia, Australasia, Europe, North America and South America
January 2015 i 073-9603714

Table of Contents
COVER LETTER
1.0 INTRODUCTION ............................................................................................................................... 1
1.1 Site Description and Background .................................................................................................. 1
1.2 Compliance Monitoring History ..................................................................................................... 1
1.3 Hydrogeologic Setting ................................................................................................................... 3
2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION ................................................ 4
2.1 Visual Inspection Program ............................................................................................................ 4
2.2 Well Network and Groundwater Elevation Measurements ........................................................... 4
2.3 November 2014 Monitoring Event................................................................................................. 5
2.4 Laboratory Analysis Program ........................................................................................................ 6
2.5 November 2014 Sampling Results ............................................................................................... 6
3.0 LABORATORY AND FIELD QA/QC ................................................................................................. 7
4.0 DATA EVALUATION ......................................................................................................................... 7
4.1 North Carolina Groundwater and Surface Water Standard Comparisons .................................... 7
4.2 Statistical Evaluations ................................................................................................................... 8
5.0 CONCLUSIONS ................................................................................................................................ 8
6.0 REFERENCES .................................................................................................................................. 8

List of Tables
Table 1 Summary of Historical Groundwater Elevation Data Table 2 Summary of Estimated Horizontal Flow Velocities
Table 3 Summary of Well Construction Information Table 4 Summary of Groundwater Monitoring Results Detected Constituents in MSW Wells
Table 5 Summary of Field Parameters for MSW Wells Table 6 Summary of Groundwater Monitoring Results Detected Constituents in C&D Wells
Table 7 Summary of Field Parameters for C&D Wells Table 8 Summary of Surface Water Monitoring Results
Table 9 Summary of Surface Water Field Parameters Table 10 Summary of Detected Leachate Parameters

List of Drawings
Drawing 1 Groundwater Contour Map, November 17 - 19, 2014
List of Appendices
Appendix A Groundwater and Surface Water Sampling Logs
Appendix B November 2014 Groundwater Certificates-of-Analysis, Chain-of-Custody Forms and Laboratory Data Reviews
Appendix C Statistical Evaluation Worksheets and Summary Table

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1.0 INTRODUCTION
This report summarizes the monitoring results from the November 17 - 19, 2014, groundwater, surface
water, and leachate sampling and analysis event at the active Sampson County, LLC Municipal Solid
Waste (MSW) and Construction & Demolition (C&D) Landfills in Sampson County. The active MSW
Landfill facility is a Subtitle D facility and is monitored in accordance with Title 15A of the North Carolina
Administrative Code (NCAC) Subchapter 13B.1633. Groundwater at the closed C&D Landfill is monitored
in accordance with Title 15A NCAC 13B.0544.
The facility is located on the northern half of the Sampson County Landfill property and is comprised of
the Phase 1 active Subtitle D lined MSW landfill and one active C&D landfill. The facility is owned and
operated by Sampson County, LLC, a subsidiary of Waste Industries, Inc., under Permit No. 82-02 issued
by the North Carolina (NC) Department of Environment and Natural Resources (DENR). The southern
half of the landfill property is comprised of one closed Subtitle D lined MSW landfill and one closed C&D
landfill, which are covered under Permit No. 82-01. The results for the closed facility are submitted under
separate cover.
1.1 Site Description and Background
The location of the facility is shown on the inlay on Drawing 1. The Sampson County Landfill is located
approximately 6.5 miles west of Clinton, North Carolina in Sampson County near the rural community of
Snow Hill. Access to the site is from Roseboro Highway (N.C. Highway 24), south of the site.
The Bearskin Swamp is located along the eastern property boundary and drains to the southwest into
Little Coharie Creek. The location of this surface water feature is shown on Drawing 1.
Based on the topography as shown on Drawing 1, topographic surface elevations at the facility range
from approximately 130 feet above mean sea level (AMSL) along the perimeter of the C&D disposal area
on the southeastern portion of the facility, to nearly 250 feet AMSL in the southeastern portion of the
MSW disposal area. The site is surrounded predominantly by wooded, agricultural, or rural residential
properties.
The Permit 82-01 closed MSW and C&D landfills are located south of the active landfills. The property
also includes a closed, unlined disposal area owned and maintained by Sampson County. This area is
located south of the active facility. Roseboro Highway (N.C. Highway 24) is located to the south of the
active landfills.
1.2 Compliance Monitoring History
Groundwater monitoring at the facility was initiated in October 1996. The facility’s approved MSW
monitoring network is currently comprised of eight monitoring wells, which monitor the uppermost aquifer
beneath the facility. Monitoring wells MW-102A and MW-103A are the upgradient background wells for

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the MSW landfill. An additional upgradient background well (MW-100B) is monitored for NC Appendix I
inorganic constituents. Monitoring well MW-100B was installed as a replacement well MW-100A prior to
the May 2010 sampling event due to site construction activities. Wells MW-104, MW-105A, MW-106,
MW-107S, and MW-108 are downgradient compliance wells for the MSW landfill. Additionally, upgradient
well MW-1N and downgradient wells MW-2N, MW-3N, MW-4N, MW-5AN, and MW-5BN monitor
groundwater at the C&D landfill.
Groundwater beneath the two disposal units is currently monitored by a combined total of 14 monitoring
wells. In addition to the wells, groundwater quality is also monitored at GGI Outfalls 1 and 2, gravity
groundwater intercept outfall sampling locations. GGI Outfall 1 is located east of the MSW disposal area,
while GGI Outfall 2 is located north of the MSW, both outfalls discharging into wetland areas.
Monitoring well MW-107D had been sampled in previous events as part of an assessment of volatile
organic constituents (VOCs) detected in MW-107S. Historical analytical results for samples from
MW-107S and MW-107D indicate that VOCs have been present in groundwater, and may be related to
landfill gas impacts to groundwater and/or historical leachate seeps along the adjacent side slopes as
discussed in the September 20, 2007, meeting with the Solid Waste Section. The corrective action for
these potential sources was implemented with the initial installation of several active gas extraction wells
during final capping activities, as well as the installation of additional landfill gas extraction wells near the
eastern slope of the facility. Recent data for samples from MW-107S and MW-107D indicate that
concentrations of VOCs in groundwater samples are below SWSLs and that these corrective measures
have improved groundwater quality in this area. The North Carolina Department of Environment and
Natural Resources (NC DENR) granted approval to discontinue sampling monitoring well MW-107D in
electronic correspondence dated October 24, 2012. The approval to discontinue sampling MW-107D is
contingent upon being able to collect a sample from MW-107S and that no quantifiable detections of
VOCs are reported in the sample collected from MW-107S. If MW-107S is dry, or if VOCs are reported
at quantifiable concentrations, then the facility must resume sampling MW-107D. Based on the
November 2014 data, there were no quantifiable detections of VOCs in the sample from MW-107S and
therefore MW-107D will not be sampled during the next scheduled compliance monitoring event.
The facility’s monitoring network also includes three surface water sampling points, SW-1, SW-4, and
SW-5. SW-1 is the facility’s upstream sampling point located along Bearskin Swamp north of the active
facility. Surface water point SW-4 is located downstream and north of the MSW disposal area along an
unnamed tributary to the Bearskin Swamp. Surface water point SW-5 is a second downstream sampling
location located east of the active facility in a drainage channel into the wetlands area. Surface points
SW-1, SW-4, and SW-5 are sampled in conjunction with the groundwater monitoring wells in accordance
with the facility’s permit and Water Quality Monitoring Plan.

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1.3 Hydrogeologic Setting
The facility is located in the western portion of the Coastal Plain Physiographic Province of North
Carolina. The geologic units of this region are relatively young, dating from the Cretaceous Period to the
present, and have been formed through transgression and regression of the Atlantic Ocean. The natural
topography is flat to gently rolling with the upland surfaces gradually sloping downward in a southeasterly
direction (S&ME 1992). The site is underlain by sands, silts, and clays of the Black Creek Formation,
which consists of crossbedded layers of black to gray thinly-laminated clay and sand lenses of varied
thickness and grain size. The formation is rich in mica, lignite, and iron sulfides. The Tuscaloosa
formation underlies the Black Creek Formation and is comprised of gray to white sand and gravel with
clay lenses (NCGS 1985). An unconformity forms the contact between the two formations with some
interfingering of the two layers in the transition zone (NCGS 1960).
The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of
sands mixed with thin clay seams and larger seams of fine sand. Beneath the uppermost aquifer, a clay
confining layer is present generally at a depth of approximately 20-25 feet below ground surface (BGS).
The clay confining layer generally consists of black or dark gray silty clay with thin seams of light gray fine
sand (S&ME 1992). Groundwater occurs at depths varying from approximately 4-16 feet BGS (plus or
minus) across the entire site. Depth-to-water measurements obtained during the November 2014
monitoring event are summarized in Table 1 and were used to prepare a groundwater surface contour
map presented on Drawing 1.
Surface water and groundwater at the site generally flows to the northeast and east toward Bearskin
Swamp located along the eastern property boundary. The Bearskin Swamp flows south to southwest and
drains into Little Coharie Creek, located approximately two miles southwest of the facility. The
groundwater contour map and interpreted flow directions are generally consistent with previously
submitted interpretations for this facility.
Based on the November 2014 groundwater contour map, the 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 0.007 feet/foot. Groundwater velocities were calculated using a hydraulic
conductivity of 1.295 X 10-2 centimeters per second (cm/s), which is the average of the hydraulic
conductivities calculated for the hydrogeologic units present at the facility (GNRA December 1999). The
estimated effective porosity of the shallow aquifer is also based on the average of the effective porosities
for the hydrogeologic units, which is 0.25 (GNRA December 1999).
Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the
facility was calculated using the following modified Darcy equation:
Vgw = Ki/ne

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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 377 feet/year toward the northeast, which is generally consistent with previous estimates
(Table 2). The linear velocity equation above makes the simplified assumptions of a homogeneous and
isotropic aquifer. Therefore, this equation represents a likely average value for the uppermost aquifer and
does not account for heterogeneous and/or anisotropic conditions that may be present in the uppermost
aquifer at the facility.
2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION
Field activities conducted as part of the November 2014 sampling event are discussed in the following
sections.
2.1 Visual Inspection Program
In detect a potential release at the earliest possible time, the visual inspection program is used at the
active MSW and C&D landfills by the sampling personnel. 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 November 2014 compliance monitoring event, no physical indicators of a potential
release were observed in the vicinity of the waste management areas by the sampling personnel.
2.2 Well Network and Groundwater Elevation Measurements
The current network of groundwater monitoring wells at the facility consists of 14 wells and two gravity
groundwater intercept outfalls. Available monitoring well construction information for all site monitoring
wells is summarized on Table 3, and the well locations are shown on Drawing 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. One upstream surface
water monitoring point (SW-1) and two downstream surface water monitoring points (SW-4 and SW-5)
are also monitored.
Depth-to-water measurements are recorded to the nearest 0.01 foot prior to initiating groundwater purging
and sampling activities. The respective groundwater level elevations for this event are presented in Table
1. The historical water level data are also shown on this table. As presented, recent groundwater
elevation data for the monitoring well network 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 - 10 feet (plus or minus) under normal conditions. The range in fluctuation appears to

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be greatest in the upgradient background wells, MW-102A and MW-103A, which are located in a
groundwater recharge area. The range in fluctuation in the downgradient compliance wells, which are
located near groundwater discharge areas, is less, presumably due to the stabilizing effect of the
hydraulic discharge boundary.
2.3 November 2014 Monitoring Event
Personnel from Golder visited the facility on November 17 - 19, 2014, to purge and sample monitoring
wells, to sample the gravity groundwater intercepts, surface water monitoring points, and the facility’s
leachate collection system.
Depth-to-water measurements were obtained from the network monitoring wells to the nearest 0.01 foot
using an electronic water level indicator prior to purging the wells. The respective groundwater level
elevations for this event are presented in Table 1. The historical groundwater level elevation data are
also shown on this table.
Monitoring wells were purged and sampled using the dedicated pumps at the facility following low-flow
micropurge procedures. Measurements of temperature, pH, specific conductivity, turbidity, dissolved
oxygen, and oxidation reduction potential were recorded on approximately 3-minute intervals, depending
on the purge rate. In general, the purge rate for each well was matched to the yield of the monitoring
well, as determined by continuously monitoring the depth to the water, up to a maximum purge rate of 500
milliliters per minute. Purging was continued until stabilization was indicated by the water quality
parameters.
Monitoring well MW-107S was sampled with a disposable bailer since the water level was below the top
of the pump. The well was purged to dryness and a sample was collected within 24 hours of the purge.
Field measurements of pH, specific conductivity, temperature, and turbidity were taken prior to the well
purge, after each well purge volume, and at the time of sampling.
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 Grundfos® or bladder
pump’s discharge lines in the labeled, laboratory-supplied, pre-preserved sample containers after purging
was completed based on stabilization of all water quality parameters. After collection, the samples were
placed in a cooler on ice, under chain-of-custody control. Copies of the sampling logs are presented in
Appendix A. Included in each log is a description of the sampling equipment, sampling method and
location, field observations, and water quality measurements.

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The surface water samples were collected directly from the stream, by lowering the sample containers
into the stream flow with the opening facing away from the current flow, taking care to prevent the
overflow of the sample containers and to minimize sample-induced turbidity. Measurements of
temperature, pH, specific conductivity, turbidity, dissolved oxygen, and oxygen reduction potential were
measured directly from the stream and recorded during the collection of the surface water samples.
The leachate sample was collected directly from the leachate piping manifold in the area that serves as
secondary containment for the leachate transportation vehicles. Measurements of temperature, pH,
specific conductivity, and turbidity were recorded during the collection of the leachate sample.
After collection, the surface water and leachate samples were placed in a cooler on ice, under chain-of-
custody control. Copies of the sampling logs are presented in Appendix A. Included in each log is a
description of the sampling equipment, sampling location, sampling method, field observations, and water
quality measurements.
2.4 Laboratory Analysis Program
The November 2014 groundwater, surface water, and leachate samples were submitted to Environmental
Conservation Laboratories, Inc. (ENCO) of Cary, North Carolina under chain-of-custody control for
analysis. As presented, groundwater, surface water, and leachate samples at the facility were analyzed
for NC Appendix I constituents, with the exception of MW-100B which is only analyzed for the NC
Appendix I list of inorganic constituents. Samples from C&D wells MW-1N, MW-2N, MW-3N, MW-4N,
MW-5AN, and MW-5BN were also analyzed for other required parameters for C&D landfills, as specified
in Title 15A NCAC 13B.0544 including tetrahydrofuran. The leachate sample was also analyzed for the
other required leachate parameters. The samples were received at the laboratory in good condition and
were properly preserved.
2.5 November 2014 Sampling Results
Analytical results for the November 2014 groundwater, surface water, and leachate samples are
summarized in Tables 4, 5, 6, 7, 8, 9, and 10 along with available historical data. The laboratory
certificates-of-analysis, chain-of-custody form, and laboratory data reviews for the sampling event are
included in Appendix B.
As presented, four inorganic constituents (barium, cobalt, nickel, and zinc) were detected at
concentrations above their respective Solid Waste Section Limits (SWSLs) in samples from one or more
downgradient compliance monitoring points at the active MSW landfill during the November 2014
monitoring event. At the C&D facility, four inorganic constituents (barium, chromium, copper, and zinc)
were detected at concentrations above their respective SWSL in samples from downgradient monitoring
wells during the November 2014 monitoring event.

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No NC Appendix I organic constituents were detected above the SWSLs in samples from any compliance
wells of surface water monitoring points during the event. No NC inorganic constituents were detected
above the SWSLs in any surface water monitoring points during the November 2014 event. Also, leachate
results were consistent with historical data for this facility.
3.0 LABORATORY AND FIELD QA/QC
A field blank was collected by Golder personnel as part of the November 2014 groundwater sampling
events. In addition to the field blank, a laboratory-prepared trip blank accompanied the volatile sample
containers to and from the laboratory. ENCO analyzed the field blank for NC Appendix I constituents and
the trip blank for NC Appendix I volatile organic compounds. Reviews of the laboratory data were
performed by Golder personnel and are included in Appendix B. Barium was detected in one of the
method blanks at an estimated concentration during this event. Based on data reviews, no blank
detections were noted and no data qualification was necessary.
4.0 DATA EVALUATION
The results of the data evaluations are presented in the following sections.
4.1 North Carolina Groundwater and Surface Water Standard Comparisons
At the MSW facility, concentrations one NC Appendix I inorganic constituent (cobalt) exceeded the
groundwater standard in samples MW-104, MW-107S and MW-108 during this event. As described
below, these concentrations were determined to be below background and no further action is warranted.
Cobalt and vanadium were also reported at estimated concentrations below the SWSL but above the
Solid Waste Section Standard (SWS GWPS) in samples from one or more downgradient monitoring
points during this event; no further action is required since concentrations are estimated and consistent
with historical data.
At the C&D facility, chromium was reported at quantifiable concentrations above the NC 2L Standard in
the sample collected from MW-4N during this event. As described below, this concentration was
determined to be below background and no further action is warranted. Cobalt and vanadium were also
reported at estimated concentrations below the SWSL but above applicable groundwater standards in
one or more monitoring points during this event; no further action is required for these detections since
the concentrations are estimated.
Indicator parameters iron and manganese were reported at concentrations above their respective SWSLs
and NC 2L Groundwater Standards in samples from one or more downgradient C&D wells during the
event, as they have been during previous events and appear to be naturally occurring. No NC Appendix I
constituents were reported above applicable surface water standards from samples collected from the
downstream surface water monitoring points during the November 2014 event.

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4.2 Statistical Evaluations
As presented above, cobalt at the active MSW facility and chromium at the active C&D facility were
detected above their respective SWSLs and applicable groundwater standards in samples from one or
more downgradient compliance monitoring points during the November 2014 monitoring event. In order
to determine the source of these concentrations, statistical analyses were performed as allowed by 15A
NCAC 13B.1632 (g) and (h). The concentrations of the constituents detected in downgradient monitoring
wells were statistically evaluated to determine if the reported concentrations exceeded the facility
background concentrations. The summary tables for statistical analyses and statistical worksheets are
presented as Appendix C. Based on statistical evaluations, the concentrations of cobalt and chromium
are below background and appear to be naturally occurring; therefore, no further action is warranted.
5.0 CONCLUSIONS
Based on the results summarized herein, Sampson County Disposal, LLC will continue monitoring the
uppermost aquifer beneath this facility in accordance with the requirements of the Detection Monitoring
Program as outlined in Title 15A NCAC 13B.1633 and .0544. The next sampling event is tentatively
scheduled for May 2015.
6.0 REFERENCES
GNRA (G.N. Richardson & Associates, Inc.), Raleigh, NC, December 2006, Water Quality and Leachate
Monitoring Report-November 2006 Semi-annual Monitoring Event.
GNRA (G.N. Richardson & Associates, Inc.), Raleigh, NC, July 2006, Water Quality and Leachate Monitoring Report-November 2006 Semi-annual Monitoring Event.
GNRA (G.N. Richardson & Associates, Inc.), Raleigh, NC, December 1999, Water Quality and Leachate
Monitoring Report-November 1999 Semi-annual Monitoring Event.
GNRA (G.N. Richardson & Associates, Inc.), Raleigh, NC, November 2000, Water Quality Monitoring Plan, Permit Area 82-02 MSW Landfill Phase 2.
GNRA (G.N. Richardson & Associates, Inc.), Raleigh, NC, September 2004, Revised July 2005, Water
Quality Monitoring Report-Sampson County Landfill-NPE Landfills.
NCGS (North Carolina Geologic Survey), 1985, Geologic Map of North Carolina.
NCGS (North Carolina Geologic Survey), 1960, Geology and Groundwater of Goldsboro Area.
S&ME (S&ME, Inc.), Charlotte, NC, August 1992, Site Suitability Update for Sampson County Municipal Solid Waste Landfill.

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TABLES

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TOC Elevation (ft AMSL)
Date GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW11/5/2002 136.90 12.18 125.76 4.10 124.55 5.00 128.18 10.14 124.72 10.71 123.73 11.46 --14.98 --------11.59 ------13.57 ----133.43 15.00 121.20 11.32 ----128.30 15.11 127.75 11.71 ----121.26 14.155/29/2003 141.83 7.25 126.51 3.35 126.60 2.95 131.37 6.95 127.71 7.72 127.44 7.75 --9.00 ----------------------136.48 11.95 123.88 8.64 ----130.29 13.12 129.04 10.42 ----122.71 12.7011/5/2003 --------------------------------------156.32 6.60 ----155.83 5.87 ----------------------------5/25/2004 ------------------------------------------------------------------------------11/23/2004 ------------------------------------------------------------------------------5/16-17/2005 137.55 11.53 126.15 3.71 125.27 4.28 128.85 9.47 125.71 9.72 125.21 9.98 --------------151.51 11.41 ----150.36 11.34 133.09 15.34 --------128.37 15.04 127.84 11.62 ----121.01 14.4011/25/2005 ------------------------------------------------------------------------------5/24/2006 ------------------------------------------------------------------------------11/20/2006 ----------------128.03 7.40 127.07 8.12 --------------154.78 8.14 ----153.56 8.14 133.63 14.80 --------128.54 14.87 128.83 10.63 ----121.64 13.775/21-22/2007 138.93 10.15 126.15 3.71 125.20 4.35 129.01 9.31 126.13 9.30 125.57 9.62 ----146.39 14.11 ------153.68 9.24 ----152.89 8.81 132.47 15.96 ----125.38 7.14 128.08 15.33 127.96 11.50 ----121.16 14.2511/12-15/2007 136.00 13.08 125.14 4.72 123.72 5.83 127.34 10.98 124.41 11.02 124.01 11.18 ----143.46 17.04 ------146.87 16.05 ----146.21 15.49 131.92 16.51 ----124.82 7.70 127.74 15.67 127.03 12.43 126.62 12.73 121.19 14.225/27-29/2008 139.04 10.04 125.69 4.17 125.75 3.80 128.87 9.45 126.04 9.39 125.48 9.71 ----146.58 13.92 ------152.14 10.78 ----151.42 10.28 132.67 15.76 ----125.18 7.34 128.14 15.27 127.41 12.05 126.79 12.56 121.26 14.1511/17-20/2008 140.02 9.06 126.38 3.48 126.19 3.36 130.07 8.25 127.36 8.07 126.47 8.72 ----146.58 13.92 ------151.47 11.45 ----150.78 10.92 132.00 16.43 ----125.87 6.65 127.79 15.62 127.95 11.51 127.43 11.92 122.10 13.315/26-27/2009 139.04 10.04 125.82 4.04 125.50 4.05 128.71 9.61 126.42 9.01 125.61 9.58 ----146.20 14.30 ------150.01 12.91 ----149.75 11.95 131.87 16.56 ----125.27 7.25 127.32 16.09 127.11 12.35 126.31 13.04 121.19 14.2211/9-11/2009 135.98 13.10 125.20 4.66 124.02 5.53 127.53 10.79 124.76 10.67 124.22 10.97 ----143.16 17.34 ------146.26 16.66 ----145.98 15.72 130.43 18.00 ----124.82 7.70 126.11 17.30 125.06 14.40 125.27 14.08 120.26 15.155/24-26/2010 140.21 8.87 126.38 3.48 126.33 3.22 130.92 7.40 128.93 6.50 127.23 7.96 ----------18.14 ----150.71 12.21 ----152.33 9.37 132.11 16.32 ----125.84 6.68 127.31 16.10 127.44 12.02 127.03 12.32 122.54 12.8711/15-17/2010 138.31 10.77 125.80 4.06 125.47 4.08 128.97 9.35 126.15 9.28 125.53 9.66 ----------21.81 ----149.92 13.00 ----149.22 12.48 131.75 16.68 ----125.02 7.50 126.59 16.82 125.51 13.95 125.31 14.04 120.57 14.845/9-11/2011 136.08 13.00 125.87 3.99 124.99 4.56 128.47 9.85 125.57 9.86 124.94 10.25 ----------20.60 ----147.63 15.29 ----146.92 14.78 131.18 17.25 ----125.10 7.42 126.20 17.21 125.55 13.91 124.96 14.39 120.71 14.7011/14/2011 135.53 13.55 125.71 4.15 124.15 5.40 127.48 10.84 124.23 11.20 124.18 11.01 --22.20 145.66 17.26 145.24 16.46 130.21 18.22 125.04 7.48 125.28 18.13 124.99 14.47 124.75 14.60 120.01 15.405/7/2012 135.08 14.00 125.72 4.14 124.22 5.33 126.52 11.80 124.12 11.31 123.69 11.50 --------137.88 23.80 ----145.77 17.15 ----145.25 16.45 127.93 20.50 ----125.05 7.47 125.31 18.10 <121.81 --124.35 15.00 120.09 15.3211/5/2012 134.32 14.76 125.08 4.78 122.74 6.81 125.63 12.69 122.60 12.83 122.47 12.72 --------137.40 24.28 ----145.20 17.72 144.72 16.98 129.59 18.84 ----124.54 7.98 124.77 18.64 123.71 15.75 123.56 15.79 118.80 16.615/13/2013 134.53 14.55 125.80 4.06 124.30 5.25 127.42 10.90 124.10 11.33 123.63 11.56 --------137.27 24.41 ----144.64 18.28 ----144.52 17.18 130.81 17.62 ----125.03 7.49 125.27 18.14 125.30 14.16 124.76 14.59 119.89 15.5211/11/2013 135.74 13.34 125.65 4.21 124.28 5.27 127.05 11.27 123.71 11.72 123.61 11.58 --------138.36 23.32 ----146.05 16.87 ----145.59 16.11 130.41 18.02 ----124.79 7.73 124.91 18.50 123.71 15.75 123.37 15.98 118.79 16.625/12-13/2014 137.34 11.74 126.05 3.81 125.44 4.11 128.63 9.69 125.53 9.90 125.02 10.17 --------139.62 22.06 ----146.31 16.61 ----147.60 14.10 132.37 16.06 ----125.19 7.33 126.53 16.88 125.36 14.10 124.94 14.41 120.09 15.3211/17-19/2014 135.33 13.75 125.51 4.35 123.50 6.05 126.62 11.70 123.48 11.95 123.79 11.40 138.08 23.60 143.63 19.29 144.75 16.95 130.13 18.30 124.47 8.05 124.91 18.50 123.86 15.60 123.50 15.85 118.62 16.79MEAN137.25 11.83 125.81 4.05 124.85 4.70 128.30 10.02 125.49 9.94 124.95 10.25 0.00 11.99 145.40 15.11 138.10 22.42 0.00 11.59 148.87 14.05 0.00 13.57 148.57 13.13 131.72 16.71 122.54 9.98 125.09 7.43 126.89 16.52 126.39 13.07 125.26 14.09 120.69 14.72MAXIMUM141.83 14.76 126.51 4.78 126.60 6.81 131.37 12.69 128.93 12.83 127.44 12.72 0.00 14.98 146.58 17.34 139.62 24.41 0.00 11.59 156.32 19.29 0.00 13.57 155.83 17.18 136.48 20.50 123.88 11.32 125.87 8.05 130.29 18.64 129.04 15.75 127.43 15.98 122.71 16.79MINIMUM134.32 7.25 125.08 3.35 122.74 2.95 125.63 6.95 122.60 6.50 122.47 7.75 0.00 9.00 143.16 13.92 137.27 18.14 0.00 11.59 143.63 6.60 0.00 13.57 144.52 5.87 127.93 11.95 121.20 8.64 124.47 6.65 124.77 13.12 <121.81 10.42 123.37 11.92 118.62 12.70
Notes:1. GW Elev = Groundwater elevation in feet above mean sea level (AMSL) 2. DTW = Depth to Water (measured in feet below top of casing)3. -- = no data available4. TOC = top of casing5. MW = monitoring well6. TOC and Water Elevation Data for dates prior to May 2007 from available historical G.N. Richardson & Associates, Inc. Semi-Annual Monitoring Event Reports and S&ME historical reports.6. Top of ca EPA MCL = 10 ug/L
TABLE 1
Summary of Historical Groundwater Elevation DataSampson County Active MSW/C&D Landfill, Permit No. 82-02Sampson County, North Carolina
MW-1N MW-107DMW-107SMW-106MW-105AMW-105MW-104MW-103AMW-103MW-102AMW-5ANMW-4NMW-3NMW-2N MW-108MW-102MW-100BMW-100AMW-100MW-5BN
132.52148.43161.70NA162.92
Monitoring Well
149.08 135.41132.52 143.41 139.46 139.35135.19135.43138.32129.55129.86 NA161.68160.50NA
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Gradient
Calculation
Segment
Flow
Direction
Gradient Segment
Length (feet)
Hydraulic
Conductivity
(K, feet/year)
Horizontal
Gradient
(i, feet)
Effective
Porosity (ne)
Hydraulic
Conductivity
(K, cm/sec)
Velocity
(Vgw, feet/year)
145120
140
120
135125
Notes: 1. Horizontal velocities based on the modified Darcy equation Vgw = Ki/ne.2. Values for K and ne were based on mean values for MW-104, MW-106, MW-107S, MW-107D and MW-108
referenced in the December 1999 G.N. Richardson and Associates, Inc. Water Quality and Leachate Monitoring Report .
ENE
NE
i 2
i 3
399.54
441.24
0.25
0.25
0.01295
0.01295
2683
1215
0.0075
0.0082
TABLE 2
Summary of Estimated Horizontal Flow Velocities
November 2014
i1 4612 0.25 290.520.012950.0054ENE
Sampson County Active MSW/C&D Landfill, Permit No. 82-02Sampson County, North Carolina
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MW-100B 446881.50 2161983.42 4/14/2010 157.27 160.30 35 2 25-35 132.27-122.27 Sand/Silt Active
MW-102A 448225.98 2159230.55 9/15/2003 --162.92 20 2 5-20 157.92-142.92 Sand/Clay Active
MW-103A 447029.28 2159719.61 9/16/2003 --161.70 20 2 5-20 156.70-141.70 Clay Active
MW-104 449816.45 2162418.65 ----148.43 20 2 10-20 138.43-128.43 --Active
MW-105A 448119.79 2163946.35 1/30/2007 129.89 132.52 20 2 8-18 121.89-111.89 Sandy/Clay Active
MW-106 449849.25 2163520.87 11/1/1999 --143.41 20 2 5-20 138.41-123.41 --Active
MW-107S 449277.51 2163653.85 11/1/1999 --139.46 17 2 5-15 134.46-124.46 --Active
MW-107D 449322.35 2163623.42 11/1/1999 --139.35 30 2 15-25 124.35-114.35 --Water Levels
MW-108 448660.92 2164058.43 10/29/1999 --135.41 25 2 15-25 120.41-110.41 --Active
MW-1N 446776.69 2163484.24 7/25/1996 148.08 149.08 23 2 7.1-22.1 140.98-125.98 --Active (C&D)
MW-2N 447798.67 2163861.27 7/26/1996 130.14 129.86 19.5 2 3-18 127.14-112.14 --Active (C&D)
MW-3N 447777.94 2164462.97 7/24/1996 128.36 129.55 22.65 2 6-21 122.36-107.36 --Active (C&D)
MW-4N 447010.66 2164647.47 7/26/2000 135.49 138.32 20 2 5-20 130.49-115.49 Sand Active (C&D)
MW-5AN 446449.12 2164831.01 7/26/2000 132.41 135.43 20 2 5-20 127.41-112.41 Sand Active (C&D)
MW-5BN 446434.33 2164844.62 7/26/2000 132.71 135.19 23 2 35-45 97.71-87.71 Sand Active (C&D)
Notes:1. ft AMSL= feet above mean sea level
2. ft BGS= feet below ground surface
3. -- = no data available
4. Well depths based on field measurements taken during the May 2007 monitoring event for MW-104 and MW-108.
5. Well depths for all other wells based on well construction information provided by G.N. Richardson & Associates, Inc.
6. Top of casing elevation for MW-100B was modified and re-surveyed in May 2012.
TABLE 3
Summary of Well Construction Information
Sampson County Active MSW/C&D Landfill, Permit No. 82-02
Sampson County, North Carolina
Well
Identification
Construction
Date
Well
Status
Screened
Interval
(ft AMSL)
Ground Surface
Elevation
(ft AMSL)
Top of Casing
Elevation
(ft AMSL)
Well
Depth
(feet)
Well
Diameter
(inches)
Screened
Interval
(ft bgs)
Geology of
Screened IntervalNorthingEasting
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Antimony ug/L 01/11/00 --10 14 --------ND --ND ND --ND ------
SWS GPS = 1 ug/L ug/L 02/21/00 --10 ND --------------------------
EPA MCL = 6 ug/L ug/L 02/22/00 --10 ----------------ND --ND ------
ug/L 10/10/00 --30 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --30 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --30 ND --------ND --ND ------------
ug/L 05/28/02 --30 ND --------ND --ND ------------
ug/L 11/05/02 --30 ND --------ND --ND ------------
ug/L 05/29/03 --30 ND --------ND --ND ------------
ug/L 11/05/03 --30 ------ND ND ------------------
ug/L 05/25/04 --30 ND ----ND ND ND --ND ------------
ug/L 11/23/04 --30 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --30 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --30 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --30 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --30 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --6 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --6 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --6 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --6 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --6 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --6 --ND --ND 0.104 B 0.181 B ND ND ND ND 0.142 B ----0.0770 J
ug/L 05/26/10 --6 ----ND ND ND 0.360 J ND ND ND ND ND ----ND
ug/L 11/15/10 --6 ----ND ND ND 0.309 J ND ND ND ND ND ----ND
ug/L 05/09/11 --6 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --6 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --6 ----0.270 J ND 0.814 J ND ND ND Dry ND 0.290 J ----ND
ug/L 11/05/12 --6 ----ND ND 0.612 J ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --6 ----ND ND 0.358 J ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --6 ----0.427 J ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --6 ----0.253 J ND ND ND ND ND 0.253 J --ND ND ND ND
ug/L 11/17/14 0.220 6 ----0.415 J 0.232 J 0.695 J ND ND ND ND --ND 0.380 J ND ND
MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Arsenic ug/L 01/11/00 --5 7.2 --------10.1 --8.04 ND --ND ------
NC 2L = 10 ug/L ug/L 02/21/00 --5 ND --------------------------
EPA MCL = 10 ug/L ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --10 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --10 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --10 ND --------ND --ND ----ND ------
ug/L 05/28/02 --10 ND --------ND --ND ----ND ------
ug/L 11/05/02 --10 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --10 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --10 ------ND ND ------------------
ug/L 05/25/04 --10 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --10 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --10 --ND --ND ND 2.6 B ND ND 3.6 B --ND ----2.2 J
ug/L 11/13/07 --10 --5.7 B --3.3 B 2.4 B 6.2 B 2.0 B 4.6 B 5.0 B 5.4 B 4.1 B ----2.4 J
ug/L 05/29/08 --10 --ND --2.3 B ND 12.1 B 4.6 B ND 2.0 B 2.5 B ND ----3.2 J
ug/L 11/17/08 --10 --ND --ND 2.8 J 6.5 J ND ND 5.4 J ND ND ----ND
ug/L 05/26/09 --10 --ND --ND ND 8.7 J ND ND 8.7 J 4.8 J 4.1 J ----ND
ug/L 11/10/09 --10 --4.02 J --ND ND 15.3 ND ND 17.3 7.46 J 4.01 J ----ND
ug/L 01/18/10 --10 ----------------21.7 --------ND
ug/L 05/26/10 --10 ----ND ND ND 11.5 ND ND 12.4 7.20 J 4.31 J ----ND
ug/L 11/15/10 --10 ----ND ND ND 10.8 B ND ND 17.5 B 8.64 B 3.04 B ----3.98 J
ug/L 05/09/11 --10 ----ND ND ND ND ND ND 16.7 10.1 8.31 J ----ND
ug/L 11/14/11 --10 ----ND ND 3.14 J 9.14 J 3.71 J ND 19.5 13.0 6.37 J ----ND
ug/L 01/17/12 --10 ----------------------------
Arsenic (Dissolved)ug/L 01/17/12 --10 ----------------------------
ug/L 05/07/12 --10 ----ND ND ND 3.10 J ND ND Dry 7.15 J 3.32 J ----ND
ug/L 11/05/12 --10 ----ND 3.27 B ND 6.67 B ND 3.70 B 29.7 --4.32 B 5.25 B ND 4.48 J
Verification Event ug/L 01/10/13 --10 ----------------5.80 J --------ND
ug/L 05/13/13 --10 ----ND ND ND 6.93 J ND ND ND --ND ND ND ND
ug/L 11/11/13 --10 ----ND ND 5.54 J 7.39 J ND 5.88 J 17.6 --ND ND ND ND
ug/L 05/12/14 --10 ----ND ND ND ND ND 5.56 J ND --ND ND ND ND
ug/L 11/17/14 5.40 10 ----ND ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 3 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Barium ug/L 01/11/00 ----52.7 --------34.1 --17.8 28 --17.5 ------
NC 2L = 700 ug/L ug/L 02/21/00 ----65.4 --------------------------
EPA MCL = 2000 ug/L ug/L 02/22/00 --------------------30.4 --14.7 ------
ug/L 10/10/00 --500 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --500 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --500 ND --------ND --ND ----ND ------
ug/L 05/28/02 --500 ND --------ND --ND ----ND ------
ug/L 11/05/02 --500 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --500 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --500 ------ND ND ------------------
ug/L 05/25/04 --500 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --500 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --500 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --500 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --500 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --500 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --100 --146 --25 J 8.0 J 67.5 J 16.2 J 11.7 J 59.6 J --34 J ----0.3 J
ug/L 11/13/07 --100 --158 --8.50 J 9.00 J 77.5 J 17.0 J 32.4 J 42.6 J 88.1 J 66.5 J ----0.2 J
ug/L 05/29/08 --100 --140 --25.7 J 7.50 J 56.4 J 21.8 J 17.7 J 46.0 J 84.7 J 82.9 J ----0.60 J
ug/L 11/17/08 --100 --126 --11.1 J 10.2 J 75.3 J 37.8 J 30.9 J 52.2 J 90.9 J 85.2 J ----ND
ug/L 05/26/09 --100 --143 --7.72 J 16.8 J 72.7 J 26.8 J 26.7 J 46.7 J 100 62.2 J ----ND
ug/L 11/10/09 --100 --116 --11.6 J 14.8 J 71.4 J 27.6 J 34.7 J 41.8 J 106 51.1 J ----ND
ug/L 05/26/10 --100 ----112 7.64 J 7.61 J 92.2 J 41.4 J 13.4 J 73.2 J 110 39.0 J ----ND
ug/L 11/15/10 --100 ----78.6 J 10.6 J 9.14 J 76.4 J 41.0 J 30.0 J 42.5 J 130 41.6 J ----ND
ug/L 05/09/11 --100 ----173 8.18 J 9.80 J 119 44.7 J 29.2 J 34.6 J 118 44.2 J ----ND
ug/L 11/14/11 --100 ----185 7.25 J 10.5 J 226 38.8 J 29.1 J 39.9 J 93.3 J 43.9 J ----ND
ug/L 05/07/12 --100 ----275 10.9 J 10.9 J 107 38.5 J 57.5 J Dry 83.8 J 59.3 J ----ND
ug/L 11/05/12 --100 ----206 9.58 J 14.2 J 53.3 J 33.3 J 26.9 J 33.8 J --50.0 J 205 49.8 J ND
ug/L 05/13/13 --100 ----288 9.63 J 12.8 J 40.2 J 34.8 J 22.2 J 23.9 J --35.7 J 217 78.1 J 1.21 J
ug/L 11/11/13 --100 ----462 16.6 J 12.9 J 56.9 J 35.2 J 19.2 J 26.2 J --44.3 J 212 53.2 J 1.22 J
ug/L 05/12/14 --100 ----906 15.8 J 9.11 J 30.6 J 37.3 J 29.8 J 24.3 J --54.2 J 247 68.0 J ND
ug/L 11/17/14 1.00 100 ----368 8.55 J 11.1 J 48.6 J 37.2 J 20.4 J 28.9 J --50.7 J 87.1 J 46.4 J 1.08 J
January 2015 Page 4 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Beryllium ug/L 01/11/00 --5 ND --------ND --ND ND --ND ------
SWS GPS = 4 ug/L ug/L 02/21/00 --5 ND --------------------------
EPA MCL = 4 ug/L ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --2 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --2 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --2 ND --------ND --ND ----ND ------
ug/L 05/28/02 --2 ND --------ND --ND ----ND ------
ug/L 11/05/02 --2 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --2 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --2 ------ND ND ------ND ----------
ug/L 05/25/04 --2 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --2 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --2 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --2 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --2 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --2 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --1 --ND --ND ND ND ND ND 1.5 --ND ----ND
ug/L 11/13/07 --1 --ND --ND ND ND ND ND 1.40 ND ND ----ND
ug/L 05/29/08 --1 --ND --ND ND 0.70 J ND ND 1.00 ND ND ----ND
ug/L 11/17/08 --1 --ND --ND ND 0.40 J ND ND 1.60 0.20 J ND ----ND
ug/L 05/26/09 --1 --0.14 J --ND 0.10 J 0.74 J ND ND 1.95 0.49 J 0.33 J ----ND
ug/L 11/10/09 --1 --ND --ND ND 1.07 ND 0.108 J 5.47 0.839 J 0.227 J ----ND
Beryllium (Dissolved)ug/L 01/18/10 --1 ----------------3.62 --------0.201 J
ug/L 01/18/10 --1 ----------------4.64 --------0.201 J
ug/L 05/26/10 --1 ----ND ND ND 1.11 0.229 J 0.250 J 2.77 1.14 0.583 J ----ND
ug/L 11/15/10 --1 ----ND ND ND 0.887 B 0.385 B ND 5.16 1.29 0.280 B ----0.106 J
ug/L 05/09/11 --1 ----ND ND ND 0.185 J 0.104 J 0.227 J 3.63 1.21 0.357 J ----ND
ug/L 11/14/11 --1 ----ND ND ND 0.560 J ND 0.134 J 4.04 1.60 0.413 J ----ND
ug/L 05/07/12 --1 ----ND ND ND 0.538 J ND 0.657 J Dry 1.58 0.133 J ----ND
ug/L 11/05/12 --1 ----ND ND ND 0.450 J 0.113 J 0.287 J 5.32 --0.303 J 0.254 J 0.170 J ND
ug/L 05/13/13 --1 ----ND ND ND 0.392 J ND ND 0.790 J --0.240 J 0.250 J 0.200 J ND
ug/L 11/11/13 --1 ----ND ND ND 0.462 J 0.113 J 0.247 J 2.78 --0.445 J 0.242 J 0.150 J ND
ug/L 05/12/14 --1 ----ND ND ND 0.214 J 0.106 J ND 0.142 J --0.755 J 0.231 J 0.280 J ND
ug/L 11/17/14 0.100 1 ----ND ND ND 0.336 J 0.199 J 0.280 J 1.96 --0.777 J ND 0.254 J ND
January 2015 Page 5 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Cadmium ug/L 01/11/00 --5 ND --------ND --6.38 ND --ND ------
NC 2L = 2 ug/L ug/L 02/21/00 --5 ND --------------------------
EPA MCL = 5 ug/L ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --1 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --1 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --1 ND --------ND --ND ----ND ------
ug/L 05/28/02 --1 ND --------ND --ND ----ND ------
ug/L 11/05/02 --1 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --1 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --1 ------ND ND 2 ----------------
ug/L 05/25/04 --1 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --1 5 ----ND ND ND --ND 2 --ND ------
ug/L 05/16/05 --1 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --1 ------ND ND ND --ND 2 --ND ------
ug/L 05/24/06 --1 ------ND ND ND --ND 1 --ND ----ND
ug/L 11/20/06 --1 ------ND ND ND --ND 4 --ND ----ND
ug/L 05/22/07 --1 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --1 --ND --ND ND ND ND ND ND ND ND ----0.50 J
ug/L 11/17/08 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --1 --ND --ND 0.23 J 0.39 J 0.09 J 0.75 J 0.84 J 0.14 J 0.18 J ----ND
ug/L 11/10/09 --1 --ND --ND ND 0.790 J ND ND ND ND ND ----ND
ug/L 05/26/10 --1 ----ND ND ND 1.17 ND ND 1.66 ND ND ----ND
ug/L 11/15/10 --1 ----ND ND ND 0.973 J ND ND 1.56 0.467 J ND ----ND
ug/L 05/09/11 --1 ----ND ND ND ND ND ND 1.84 ND ND ----ND
ug/L 11/14/11 --1 ----0.490 J ND ND 0.782 J 0.405 J ND 2.81 1.02 0.407 J ----ND
ug/L 05/07/12 --1 ----ND ND ND 0.701 J ND ND Dry 0.623 J 0.952 J ----ND
ug/L 11/05/12 --1 ----ND ND ND 0.559 J ND ND 1.68 --0.564 J ND ND ND
ug/L 05/13/13 --1 ----0.424 J 0.384 J ND 0.664 J ND ND 1.73 --0.749 J ND ND ND
ug/L 11/11/13 --1 ----ND ND ND 0.705 J ND ND 1.97 --0.608 J ND ND ND
ug/L 05/12/14 --1 ----ND ND ND 0.504 J ND ND ND --0.463 J ND ND ND
ug/L 11/17/14 0.360 1 ----ND ND ND 0.452 J ND ND 1.49 --0.381 J ND ND ND
January 2015 Page 6 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Chromium ug/L 01/11/00 --5 ND --------ND --ND ND --5.14 ------
NC 2L = 10 ug/L ug/L 02/21/00 --5 ND --------------------------
EPA MCL = 100 ug/L ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --10 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --10 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --10 ND --------ND --ND ----ND ------
ug/L 05/28/02 --10 ND --------65 --ND ----ND ------
ug/L 11/05/02 --10 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --10 ND --------19 --ND ND --ND ------
ug/L 11/05/03 --10 ------ND ND ----11 ------------
ug/L 05/25/04 --10 ND ----ND ND 14 --23 12 --ND ------
ug/L 11/23/04 --10 ND ----77 ND 22 --73 ND --ND ------
ug/L 05/16/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --10 ------ND ND ND --ND 19 --ND ------
ug/L 05/24/06 --10 ------ND ND 23 --ND 11 --ND ----ND
ug/L 11/20/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --10 --ND --ND 2.3 J ND ND ND ND --ND ----ND
ug/L 11/13/07 --10 --ND --2.0 J ND ND 5.9 J 6.4 J 13.7 3.0 J ND ----ND
ug/L 05/29/08 --10 --ND --ND ND ND 6.8 J ND ND ND ND ----ND
ug/L 11/17/08 --10 --ND --2.8 B ND ND 5.8 B ND ND 1.8 B 7.9 B ----4.9 J
ug/L 05/26/09 --10 --0.8 J --ND 8.2 J 17.7 3.3 J ND 15.8 ND 1.1 J ----ND
ug/L 11/10/09 --10 --1.87 J --7.90 J 3.75 J 6.13 J 2.32 J ND ND ND 2.21 J ----ND
ug/L 05/26/10 --10 ----ND ND 2.39 J 6.95 J ND ND 3.51 J ND 2.31 J ----ND
ug/L 11/15/10 --10 ----ND 3.63 J 2.08 J 2.52 J 1.07 J ND 1.63 J 1.16 J ND ----ND
ug/L 05/09/11 --10 ----ND 2.82 J 6.80 J 9.16 J ND ND 6.80 J ND 3.27 J ----ND
ug/L 11/14/11 --10 ----ND 2.67 J 4.26 J 4.21 J ND ND 3.82 J 2.46 J 3.05 J ----ND
ug/L 05/07/12 --10 ----ND 13.0 3.80 J 3.51 J ND 13.4 Dry 8.52 J 4.53 J ----ND
ug/L 11/05/12 --10 ----ND 1.36 J 3.78 J 4.36 J 1.29 J 2.46 J 3.62 J --2.42 J ND ND ND
ug/L 05/13/13 --10 ----ND 11.4 7.12 J 8.38 J ND 2.71 J 2.63 J --5.10 J ND 1.82 J ND
ug/L 11/11/13 --10 ----ND 3.61 J 6.33 J 6.79 J 4.41 J 2.75 J 2.97 J --3.01 J 4.62 J 2.15 J ND
ug/L 05/12/14 --10 ----ND 6.54 J 4.63 J 4.24 J 2.38 J 1.42 J ND --2.99 J ND ND ND
ug/L 11/17/14 1.40 10 ----ND 5.47 J 3.46 J 4.20 J 1.55 J 2.59 J 2.10 J --3.18 J ND ND ND
January 2015 Page 7 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Cobalt ug/L 01/11/00 --5 5.52 --------ND --ND ND --ND ------
SWS GPS = 1 ug/L ug/L 02/21/00 --5 ND --------------------------
EPA MCL = 100 ug/L ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --10 ND --------ND --ND 39 --ND ------
ug/L 07/12/01 --10 ND --------ND --ND 54 --ND ------
ug/L 10/24/01 --10 ND --------ND --ND ----ND ------
ug/L 05/28/02 --10 ND --------ND --ND ----ND ------
ug/L 11/05/02 --10 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --10 ND --------14 --ND 19 --ND ------
ug/L 11/05/03 --10 ------ND ND 22 ----47 ----------
ug/L 05/25/04 --10 ND ----ND ND 20 --ND 104 --ND ------
ug/L 11/23/04 --10 ND ----ND ND 14 --ND 117 --ND ------
ug/L 05/16/05 --10 ------ND ND ND --10 ND --ND ------
ug/L 11/25/05 --10 ------ND ND ND --ND 35 --ND ------
ug/L 05/24/06 --10 ------ND ND ND --ND 32 --ND ----ND
ug/L 11/20/06 --10 ------ND ND ND --ND 29 --ND ----ND
ug/L 05/22/07 --10 --ND --ND ND 20.2 ND ND 75 --2.8 J ----ND
ug/L 11/13/07 --10 --ND --ND ND 11.1 3.0 J ND 34.2 11.8 7.8 J ----ND
ug/L 05/29/08 --10 --ND --ND ND 58.4 3.9 J ND 23.5 10.2 27.7 ----ND
ug/L 11/17/08 --10 --ND --ND ND 21.6 5.9 J 1.1 J 68.0 12.3 7.2 J ----ND
ug/L 05/26/09 --10 --1.8 J --ND 0.8 J 35.3 2.4 J ND 59.4 18.0 11.4 ----ND
ug/L 11/10/09 --10 --1.75 J --ND ND 39.0 3.94 J ND 121 25.0 6.78 J ----ND
ug/L 05/26/10 --10 ----ND ND ND 67.8 2.79 J ND 102 31.7 14.1 ----ND
ug/L 11/15/10 --10 ----ND ND ND 46.2 9.38 J 1.62 J 132 41.2 28.7 ----ND
ug/L 12/21/10 --10 --------------------45.5 ----ND
ug/L 05/09/11 --10 ----1.51 J ND ND 4.21 J 2.50 J 1.23 J 105 45.4 48.2 ----ND
ug/L 11/14/11 --10 ----2.43 J 1.12 J 1.39 J 16.1 2.76 J 2.02 J 103 49.7 38.2 ----ND
ug/L 01/17/12 --10 ----------------------------
Cobalt (Dissolved)ug/L 01/17/12 --10 ----------------------------
ug/L 05/07/12 --10 ----1.15 J ND ND 9.55 J 1.72 J 10.0 Dry 50.5 23.6 ----ND
Verification Event ug/L 07/11/12 --10 ----------------------------
Cobalt (Dissolved)ug/L 07/11/12 --10 ----------------------------
ug/L 11/05/12 --10 ----1.66 J 1.22 J 2.18 J 12.4 2.75 J 2.28 J 139 --27.5 3.48 J 3.49 J ND
ug/L 05/13/13 --10 ----ND ND 1.93 J 8.59 J 1.61 J 2.57 J 31.8 --20.9 3.32 J 5.94 J ND
ug/L 11/11/13 --10 ----ND ND 1.60 J 19.3 3.41 J 2.41 J 100 --36.0 3.50 J 3.48 J ND
ug/L 05/12/14 --10 ----ND ND ND 8.49 J 2.54 J 1.15 J 4.59 J --38.4 2.93 J 6.21 J ND
ug/L 11/17/14 1.10 10 ----ND ND 1.16 J 11.7 3.97 J 1.74 J 76.0 --22.3 ND 3.22 J ND
January 2015 Page 8 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Copper ug/L 01/11/00 --5 ND --------ND --ND ND --ND ------
NC 2L = 1000 ug/L ug/L 02/21/00 --5 ND --------------------------
EPA MCL = 1300 ug/L#ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --200 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --200 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --200 ND --------ND --ND ----ND ------
ug/L 05/28/02 --200 ND --------ND --ND ----ND ------
ug/L 11/05/02 --200 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --200 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --200 ------ND ND ------------------
ug/L 05/25/04 --200 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --200 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --200 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --200 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --200 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 ----------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --10 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --10 --ND --1.00 J 10.0 ND ND 3.90 J ND 0.70 J ND ----ND
ug/L 05/29/08 --10 --ND --ND ND ND 1.00 B ND ND ND ND ----1.00 J
ug/L 11/17/08 --10 --ND --ND ND ND ND 1.80 J ND 3.90 J ND ----ND
ug/L 05/26/09 --10 --ND --1.00 B 1.49 B 4.37 B 1.20 B 1.76 B 2.44 B 1.45 B ND ----1.47 J
ug/L 11/10/09 --10 --4.64 J --3.17 J 2.26 J ND ND ND 4.52 J 6.53 J ND ----ND
ug/L 05/26/10 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --10 ----ND ND ND ND ND ND ND 1.97 J ND ----ND
ug/L 05/09/11 --10 ----ND ND ND ND ND 4.99 J 10.6 3.47 J 3.88 J ----ND
ug/L 11/14/11 --10 ----6.65 J ND ND ND 2.69 J 2.12 J 156 2.42 J 2.31 J ----ND
ug/L 05/07/12 --10 ----ND 3.00 J ND ND ND 8.77 J Dry 4.79 J 6.32 J ----ND
ug/L 11/05/12 --10 ----ND ND ND ND ND 5.89 J 1.70 J --ND ND ND ND
ug/L 05/13/13 --10 ----ND 2.25 J ND ND ND ND 8.21 J --4.99 J ND 2.71 J ND
ug/L 11/11/13 --10 ----ND ND ND ND ND 36.6 ND --1.70 J ND ND ND
ug/L 05/12/14 --10 ----2.94 J ND ND ND ND 40.3 ND --5.14 J 1.70 J ND ND
ug/L 11/17/14 1.60 10 ----ND ND ND ND ND 9.72 J ND --5.32 J ND ND ND
January 2015 Page 9 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Lead ug/L 01/11/00 --5 5.12 --------ND --ND ND --5.42 ------
NC 2L = 15 ug/L ug/L 02/21/00 --5 ND --------------------------
EPA MCL = 15 ug/L#ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --10 ND --------ND --ND 15 --ND ------
ug/L 07/12/01 --10 ND --------ND --ND 17 --ND ------
ug/L 10/24/01 --10 ND --------ND --ND ----ND ------
ug/L 05/28/02 --10 ND --------11 --ND ----ND ------
ug/L 11/05/02 --10 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --10 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --10 ------ND ND ------------------
ug/L 05/25/04 --10 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --10 ND ----22 ND ND --ND ND --ND ------
ug/L 05/16/05 --10 ------ND ND 41 --ND ND --ND ------
ug/L 11/25/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --10 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --10 --ND --ND ND ND ND ND 3.4 J ND ND ----ND
ug/L 05/29/08 --10 --2.1 J --ND ND 4.7 J 2.7 J ND ND 2.9 J ND ----ND
ug/L 11/17/08 --10 --ND --ND ND 3.5 J ND ND 3.9 J 3.5 J ND ----ND
ug/L 05/26/09 --10 --2.2 J --ND ND 11.3 ND ND 7.8 J 3.4 J ND ----ND
ug/L 11/10/09 --10 --ND --ND ND 8.24 J 1.91 J ND 16.4 9.04 J 2.32 J ----ND
ug/L 05/26/10 --10 ----ND ND ND 9.50 J 1.91 J ND 11.2 8.96 J 4.13 J ----ND
ug/L 11/15/10 --10 ----2.56 J 2.68 J 1.95 J 7.87 J 2.59 J 2.34 J 13.5 12.2 4.31 J ----ND
ug/L 05/09/11 --10 ----ND ND ND 2.18 J 2.53 J ND 11.8 11.2 3.33 J ----ND
ug/L 11/14/11 --10 ----ND ND ND 4.59 J ND ND 9.02 J 10.7 ND ----ND
ug/L 01/17/12 --10 ----------------------------
Lead (Dissolved)ug/L 01/17/12 --10 ----------------------------
ug/L 05/07/12 --10 ----ND ND ND 2.31 J ND 7.50 J Dry 7.76 J ND ----ND
Verification Event ug/L 07/11/12 --10 ----------------------------
Lead (Dissolved)ug/L 07/11/12 --10 ----------------------------
ug/L 11/05/12 --10 ----ND ND ND 4.91 J ND ND 14.4 --2.20 J ND 1.95 J ND
ug/L 05/13/13 --10 ----ND ND ND 2.96 J ND ND ND --ND ND ND ND
ug/L 11/11/13 --10 ----ND ND ND ND ND ND 5.04 J --ND ND ND ND
ug/L 05/12/14 --10 ----ND ND ND 2.79 J 2.42 J ND ND --2.73 J ND ND ND
ug/L 11/17/14 2.10 10 ----ND ND ND ND ND ND 5.80 J --ND ND ND ND
January 2015 Page 10 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Nickel ug/L 01/11/00 --5 ND --------ND --ND ND --ND ------
NC 2L = 100 ug/L ug/L 02/21/00 --5 ND --------------------------
No EPA MCL ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --50 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --50 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --50 ND --------ND --ND ----ND ------
ug/L 05/28/02 --50 ND --------ND --ND ----ND ------
ug/L 11/05/02 --50 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --50 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --50 ------ND ND ------------------
ug/L 05/25/04 --50 ND ----ND ND ND --ND 86 --ND ------
ug/L 11/23/04 --50 ND ----ND ND ND --ND 107 --ND ------
ug/L 05/16/05 --50 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --50 ------ND ND ND --ND 61 --ND ------
ug/L 05/24/06 --50 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --50 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --50 --ND --ND 2.2 J 15.4 J ND ND 74.6 --3.9 J ----ND
ug/L 11/13/07 --50 --ND --ND ND 7.8 J 8.2 J 8.7 J 49.4 J 10.4 J 8.3 J ----ND
ug/L 05/29/08 --50 --ND --ND ND 37.1 J 4.3 J ND 27.6 J 9.1 J 19.9 J ----ND
ug/L 11/17/08 --50 --ND --2.8 B 2.2 B 17.6 J 5.7 B ND 64.9 11.8 B 20.9 J ----3.2 J
ug/L 05/26/09 --50 --2.4 B --1.9 B 7.2 J 31.3 J 3.4 B 1.5 B 71.7 18.1 J 12.4 J ----0.7 J
ug/L 11/10/09 --50 --ND --4.16 J 2.37 J 26.0 J ND ND 139 26.7 J 9.78 J ----ND
ug/L 01/18/10 --50 ----------------75.3 --------ND
ug/L 05/26/10 --50 ----ND ND ND 49.0 J ND ND 98.3 31.8 J 17.6 J ----ND
Dissolved Nickel ug/L 01/18/10 --50 ----------------74.6 --------ND
ug/L 11/15/10 --50 ----ND 2.09 J ND 31.4 J 7.49 J ND 110 43.3 J 14.7 J ----ND
ug/L 05/09/11 --50 ----ND 2.77 J 4.54 J 7.57 J 2.61 J 2.22 J 82.3 46.3 J 28.8 J ----ND
ug/L 11/14/11 --50 ----2.86 J 3.80 J 5.27 J 13.4 J 4.55 J 2.91 J 89.1 51.8 25.0 J ----ND
ug/L 05/07/12 --50 ----ND 8.30 J 3.30 J 7.05 J 2.55 J 15.8 J Dry 53.3 19.8 J ----ND
ug/L 11/05/12 --50 ----ND 2.05 J 3.89 J 10.2 J 2.66 J 3.07 J 105 --20.9 J 2.92 J 2.65 J ND
ug/L 05/13/13 --50 ----ND 8.13 J 6.65 J 9.46 J 2.29 J 2.61 J 24.1 J --16.9 J 3.36 J 5.23 J ND
ug/L 11/11/13 --50 ----ND 2.42 J 3.45 J 14.5 J 3.63 J 3.98 J 69.5 --29.0 J 3.50 J 2.78 J ND
ug/L 05/12/14 --50 ----ND 4.34 J 3.06 J 5.98 J 1.86 J ND 3.05 J --32.0 J 2.49 J 4.03 J ND
ug/L 11/17/14 1.80 50 ----ND 3.32 J 2.05 J 8.04 J 2.73 J 2.48 J 54.4 --20.0 J 3.22 J ND ND
January 2015 Page 11 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Selenium ug/L 01/11/00 --5 ND ND ------ND --ND ND --ND ------
NC 2L = 20 ug/L ug/L 02/21/00 --5 ND ND ------------------------
EPA MCL = 50 ug/L ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --20 ND ND ------ND --ND ND --ND ------
ug/L 07/12/01 --20 ND ND ------ND --ND ND --ND ------
ug/L 10/24/01 --20 ND ND ------ND --ND ----ND ------
ug/L 05/28/02 --20 ND ND ------ND --ND ----ND ------
ug/L 11/05/02 --20 ND ND ------ND --ND ND --ND ------
ug/L 05/29/03 --20 ND ND ------ND --ND ND --ND ------
ug/L 11/05/03 --20 ------ND ND ------------------
ug/L 05/25/04 --20 ND ND --ND ND ND --ND ND --ND ------
ug/L 11/23/04 --20 ND ND --ND ND ND --ND ND --ND ------
ug/L 05/16/05 --20 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --20 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --20 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --20 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --10 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --10 --ND --ND 2.0 B ND ND ND ND ND ND ----3.1 J
ug/L 05/29/08 --10 --ND --2.7 B 2.1 B ND 3.5 B ND ND ND ND ----2.1 J
ug/L 11/17/08 --10 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --10 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --10 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --10 ----ND ND ND 2.94 B ND ND Dry 5.40 B 3.13 (ND)B ----4.01 (ND)J
ug/L 11/05/12 --10 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --10 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --10 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --10 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 5.00 10 ----ND ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 12 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Silver ug/L 01/11/00 --5 ND ND ------ND --ND ND --ND ------
NC 2L = 20 ug/L ug/L 02/21/00 --5 ND ND ------------------------
EPA MCL = 100 ug/L*ug/L 02/22/00 --------------------ND --ND ------
ug/L 10/10/00 --10 ND ND ------ND --ND ND --ND ------
ug/L 07/12/01 --10 ND ND ------ND --ND ND --ND ------
ug/L 10/24/01 --10 ND ND ------ND --ND ----ND ------
ug/L 05/28/02 --10 ND ND ------ND --ND ----ND ------
ug/L 11/05/02 --10 ND ND ------ND --ND ND --ND ------
ug/L 05/29/03 --10 ND ND ------ND --ND ND --ND ------
ug/L 11/05/03 --10 ------ND ND ------------------
ug/L 05/25/04 --10 ND ND --ND ND ND --ND ND --ND ------
ug/L 11/23/04 --10 ND ND --ND ND ND --ND ND --ND ------
ug/L 05/16/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --10 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --10 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --10 --ND --ND ND ND 2.1 B ND ND ND ND ----2.9 J
ug/L 11/17/08 --10 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --10 --ND --ND ND 33.5 ND ND ND ND ND ----ND
ug/L 07/23/09 --10 ----------ND --------------ND
ug/L 11/10/09 --10 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --10 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --10 ----ND ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --10 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --10 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --10 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --10 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 1.90 10 ----ND ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 13 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Thallium ug/L 01/11/00 --10 ND --------ND --ND ND --ND ------
SWS GPS = 0.28 ug/L ug/L 02/21/00 --10 ND --------------------------
EPA MCL = 2 ug/L ug/L 02/22/00 --10 ----------------ND --ND ------
ug/L 10/10/00 --10 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --10 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --10 ND --------ND --ND ----ND ------
ug/L 05/28/02 --10 ND --------ND --ND ----ND ------
ug/L 11/05/02 --10 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --10 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --10 ------ND ND ------------------
ug/L 05/25/04 --10 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --10 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --5.5 --0.108 J --ND ND ND ND ND 0.07 J --ND ----ND
ug/L 11/13/07 --5.5 --0.093 J --ND ND ND ND ND ND ND 0.052 J ----ND
ug/L 05/29/08 --5.5 --0.090 J --ND 0.047 J ND ND ND ND ND 0.066 J ----ND
ug/L 11/17/08 --5.5 --0.070 J --ND ND 0.044 J ND ND 0.045 J 0.041 J ND ----ND
ug/L 05/26/09 --5.5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --5.5 --ND --ND ND ND ND ND 2.31 J ND ND ----ND
ug/L 05/26/10 --5.5 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --5.5 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --5.5 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --5.5 ----ND ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --5.5 ----0.115 J ND 0.150 J ND ND ND Dry ND 0.146 J ----ND
ug/L 11/05/12 --5.5 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --5.5 ----0.121 J ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --5.5 ----0.147 J ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --5.5 ----0.202 J ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.110 5.5 ----0.155 J ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 14 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Vanadium ug/L 01/11/00 --5 5.71 --------ND --ND 5.08 --12 ------
SWS GPS = 0.3 ug/L ug/L 02/21/00 --5 ND --------------------------
No EPA MCL ug/L 02/22/00 --5 ----------------ND --ND ------
ug/L 10/10/00 --40 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --40 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --40 ND --------ND --ND ----ND ------
ug/L 05/28/02 --40 ND --------ND --ND ----ND ------
ug/L 11/05/02 --40 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --40 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --40 ------ND ND ------------------
ug/L 05/25/04 --40 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --40 ND ----0.059 ND ND --ND ND --ND ------
ug/L 05/16/05 --40 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --40 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --40 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --40 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --25 --ND --ND ND ND ND ND ND --6.5 J ----ND
ug/L 11/13/07 --25 --4.6 J --ND ND ND ND ND ND ND 6.4 J ----ND
ug/L 05/29/08 --25 --3.0 B --ND ND ND 6.7 J ND ND ND ND ----1.2 J
ug/L 11/17/08 --25 --ND --ND ND ND ND ND ND ND 33.3 ----ND
ug/L 02/17/09 --25 --------------------14.3 J ----ND
ug/L 05/26/09 --25 --4.1 J --0.7 J 1.3 J 7.5 J 4.0 J 0.7 J 10.0 J ND 23.4 J ----ND
ug/L 11/10/09 --25 --2.33 J --3.59 J ND ND ND ND 8.07 J ND 18.0 J ----ND
ug/L 05/26/10 --25 ----ND ND ND ND ND ND ND ND 1.63 J ----ND
ug/L 11/15/10 --25 ----ND 1.52 J ND ND 1.44 J ND 7.07 J ND 7.49 J ----ND
ug/L 05/09/11 --25 ----ND ND ND ND ND ND 3.14 J ND 1.53 J ----ND
ug/L 11/14/11 --25 ----ND ND ND ND 6.74 J ND ND ND 21.2 J ----ND
ug/L 01/17/12 --25 ----------------------------
Vanadium (Dissolved)ug/L 01/17/12 --25 ----------------------------
ug/L 05/07/12 --25 ----ND 3.49 J ND ND ND 12.6 J Dry ND 2.83 J ----ND
Verification Event ug/L 07/11/12 --25 ----------------------------
Vanadium (Dissolved)ug/L 07/11/12 --25 ----------------------------
ug/L 11/05/12 --25 ----ND ND ND ND 1.52 J 1.82 J ND --ND ND ND ND
ug/L 05/13/13 --25 ----ND ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --25 ----ND ND ND ND 2.64 J ND ND --4.21 J ND ND ND
ug/L 05/12/14 --25 ----ND ND ND ND 24.7 J ND ND --ND ND ND ND
ug/L 11/17/14 1.40 25 ----ND ND ND ND 11.1 J ND ND --8.34 J ND ND ND
January 2015 Page 15 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Zinc ug/L 01/11/00 --5 8.05 --------5.59 --10.8 5.45 --10.3 ------
NC 2L = 1000 ug/L ug/L 02/21/00 --5 ND --------------------------
EPA MCL = 5000 ug/L*ug/L 02/22/00 --5 ----------------ND --5.83 ------
ug/L 10/10/00 --50 ND --------ND --ND 80 --ND ------
ug/L 07/12/01 --50 ND --------ND ----92 --ND ------
ug/L 10/24/01 --20 ND --------ND --ND ----ND ------
ug/L 05/28/02 --50 ND --------ND --ND ----ND ------
ug/L 11/05/02 --50 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --50 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --50 ------ND ND ------65 ----------
ug/L 05/25/04 --50 ND ----ND ND ND --ND 293 --ND ------
ug/L 11/23/04 --50 ND ----ND ND ND --ND 443 --ND ------
ug/L 05/16/05 --50 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --50 ------ND ND ND --ND 203 --ND ------
ug/L 05/24/06 --50 ------ND ND ND --ND 87 --ND ----ND
ug/L 11/20/06 --50 ------ND ND ND --ND 117 --ND ----ND
ug/L 05/22/07 --10 --2.3 J --ND ND 27.2 1.5 J ND 234 --2.9 J ----ND
ug/L 11/13/07 --10 --ND --ND ND 18.0 2.5 J 217 133 22.7 17.5 ----ND
ug/L 01/09/08 --10 --------------3.7 J ----------ND
ug/L 05/29/08 --10 --2.5 B --1.6 B ND 96.2 10.2 1.9 B 75.5 21.3 25.6 ----1.8 J
ug/L 11/17/08 --10 --17.6 B --ND ND 35.6 4.7 B 6.2 B 195 34.2 12.8 B ----4.6 J
ug/L 05/26/09 --10 --6.7 J --5.9 J 3.7 J 55.4 5.2 J 17.5 183 48.9 12.7 ----ND
ug/L 11/10/09 --10 --5.18 J --ND ND 57.6 ND ND 449 87.0 12.0 ----ND
ug/L 01/18/10 --10 ----------------233 --------ND
ug/L 05/26/10 --10 ----5.46 J ND ND 126 ND ND 294 102 8.72 J ----ND
ug/L 11/15/10 --10 ----ND ND ND 105 40.1 ND 323 137 39.1 ----ND
ug/L 05/09/11 --10 ----ND ND ND 5.15 J 7.32 J 11.4 257 141 52.8 ----ND
ug/L 11/14/11 --10 ----ND ND ND 26.5 6.30 J 3.91 J 355 168 28.4 ----ND
ug/L 05/07/12 --10 ----ND ND ND 11.8 ND 18.4 Dry 147 56.8 ----ND
ug/L 11/05/12 --10 ----ND ND ND 14.6 ND 7.81 J 274 --14.3 9.63 J 7.73 J ND
ug/L 05/13/13 --10 ----4.86 J ND ND 5.85 J 5.25 J 5.13 J 108 --26.4 10.2 16.2 ND
ug/L 11/11/13 --10 ----ND ND ND 15.2 12.4 26.4 211 --50.5 15.8 15.0 ND
ug/L 05/12/14 --10 ----ND ND ND 4.16 J 9.00 J 12.7 10.0 --69.3 11.8 19.6 ND
ug/L 11/17/14 3.80 10 ----ND ND ND 8.92 J 12.4 4.36 J 138 --53.1 22.5 15.1 ND
January 2015 Page 16 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Acetone ug/L 01/11/00 --10 ND --------ND --ND ND --ND ------
NC 2L = 6000 ug/L ug/L 02/21/00 --10 ND --------------------------
No EPA MCL ug/L 02/22/00 --10 ----------------ND --ND ------
ug/L 10/10/00 --100 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --100 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --100 ----------ND --ND ----ND ------
ug/L 05/28/02 --100 ND --------ND --ND ----ND ------
ug/L 11/05/02 --100 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --100 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --100 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --100 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --100 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --100 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --100 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --100 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --100 ------ND ND ND --ND ND --204 ----ND
ug/L 02/28/07 --100 --------------------ND ----ND
ug/L 05/22/07 --100 --ND --ND 1.7 B 1.6 B 3.2 B ND 9.7 B --ND ----6.6 J
ug/L 11/13/07 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --100 --ND --ND ND ND ND ND ND ND ND ----2.9 J
ug/L 11/17/08 --100 --ND --ND ND ND ND ND ND ND 23 B ----9.8 J
ug/L 05/26/09 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --100 ------ND ND ND ND ND 2.8 J ND ND ----ND
ug/L 05/26/10 --100 ------ND ND ND ND ND 7.0 J ND 5.2 J ----ND
ug/L 11/15/10 --100 ------ND ND ND ND 4.6 B ND ND ND ----9.2 J
ug/L 05/09/11 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --100 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 1.2 100 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 17 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Benzene ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 1 ug/L ug/L 02/21/00 --2 ND --------------------------
EPA MCL = 5 ug/L ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --1 --ND --ND ND ND ND ND 3.8 --ND ----ND
ug/L 08/07/07 --1 ----------------2.3 --------ND
ug/L 11/13/07 --1 --ND --ND ND ND ND ND 0.73 J ND ND ----ND
ug/L 05/29/08 --1 --ND --ND ND ND ND ND 0.95 J 0.80 J ND ----ND
ug/L 11/17/08 --1 --ND --ND ND ND ND ND 0.79 J 0.79 J ND ----ND
ug/L 05/26/09 --1 --ND --ND ND ND ND ND 0.61 J 0.82 J ND ----ND
ug/L 11/10/09 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --1 ------ND ND ND ND ND ND 0.47 J ND ----ND
ug/L 11/15/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --1 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.15 1 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 18 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Carbon disulfide ug/L 01/11/00 ----ND ND ------ND --ND ND --ND ------
NC 2L = 700 ug/L ug/L 02/21/00 ----ND ND ------------------------
No EPA MCL ug/L 02/22/00 --------------------ND --ND ------
ug/L 10/10/00 ----ND ND ------ND --ND ND --ND ------
ug/L 07/12/01 ----ND ND ------ND --ND ND --ND ------
ug/L 10/24/01 --------------ND --ND ----ND ------
ug/L 05/28/02 ----ND ND ------ND --ND ----ND ------
ug/L 11/05/02 ----ND ND ------ND --ND ND --ND ------
ug/L 05/29/03 ----ND ND ------ND --ND ND --ND ------
ug/L 11/05/03 ----ND ND --ND ND ND --ND ND --ND ------
ug/L 05/25/04 ----ND ND --ND ND ND --ND ND --ND ------
ug/L 11/23/04 ----ND ND --ND ND ND --ND ND --ND ------
ug/L 05/16/05 ----------ND ND ND --ND ND --ND ------
ug/L 11/25/05 ----------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --100 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --100 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --100 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --100 --ND --ND ND ND ND ND ND ND 2.6 J ----ND
ug/L 05/26/09 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --100 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 1.5 100 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 19 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Chlorobenzene ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 50 ug/L ug/L 02/21/00 --2 ND --------------------------
EPA MCL = 100 ug/L ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --3 --ND --ND ND ND ND ND 1.4 J --ND ----ND
ug/L 11/13/07 --3 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --3 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --3 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --3 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --3 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --3 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --3 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --3 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --3 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --3 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --3 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --3 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --3 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --3 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.17 3 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 20 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Chloroform ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 70 ug/L ug/L 02/21/00 --2 ND --------------------------
EPA MCL = 80 ug/L ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --5 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --5 --0.68 J --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --5 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.18 5 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 21 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
1,1-Dichloroethane ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 6 ug/L ug/L 02/21/00 --2 ND --------------------------
No EPA MCL ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --5 --ND --ND ND ND ND ND 0.39 J --ND ----ND
ug/L 11/13/07 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --5 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.13 5 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 22 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
cis-1,2-Dichloroethene ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 70 ug/L ug/L 02/21/00 --2 ND --------------------------
EPA MCL = 70 ug/L ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --5 --ND --ND ND ND ND ND ND --1.5 J ----ND
ug/L 11/13/07 --5 --ND --ND ND ND ND ND 0.69 J ND ND ----ND
ug/L 05/29/08 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --5 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.15 5 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 23 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Ethylbenzene ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 600 ug/L ug/L 02/21/00 --2 ND --------------------------
EPA MCL = 700 ug/L ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND 6.2 --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --1 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --1 --ND --ND ND ND ND ND ND ND 0.44 J ----ND
ug/L 05/26/09 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --1 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.13 1 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 24 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
2-Butanone ug/L 01/11/00 --10 ND --------ND --ND ND --ND ------
NC 2L = 4000 ug/L ug/L 02/21/00 --10 ND --------------------------
No EPA MCL ug/L 02/22/00 --10 ----------------ND --ND ------
ug/L 10/10/00 --100 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --100 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --100 ----------ND --ND ----ND ------
ug/L 05/28/02 --100 ND --------ND --ND ----ND ------
ug/L 11/05/02 --100 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --100 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --100 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --100 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --100 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --100 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --100 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --100 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --100 ------ND ND ND --ND ND --184 ----ND
ug/L 02/28/07 --100 --------------------ND ----ND
ug/L 05/22/07 --100 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --100 --ND --ND ND ND ND ND ND ND 28 J ----ND
ug/L 05/26/09 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --100 ------ND ND ND ND ND ND ND ND ----6.4 J
ug/L 05/09/11 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --100 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 1.3 100 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 25 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
4-Methyl-2-pentanone ug/L 01/11/00 ----ND ND ------ND --ND ND --ND ------
SWS GWS = 560 ug/L ug/L 02/21/00 ----ND ND ------------------------
EPA MCL = 5 ug/L ug/L 02/22/00 --------------------ND --ND ------
ug/L 10/10/00 ----ND ND ------ND --ND ND --ND ------
ug/L 07/12/01 ----ND ND ------ND --ND ND --ND ------
ug/L 10/24/01 --------------ND --ND ----ND ------
ug/L 05/28/02 ----ND ND ------ND --ND ----ND ------
ug/L 11/05/02 ----ND ND ------ND --ND ND --ND ------
ug/L 05/29/03 ----ND ND ------ND --ND ND --ND ------
ug/L 11/05/03 ----ND ND --ND ND ND --ND ND --ND ------
ug/L 05/25/04 ----ND ND --ND ND ND --ND ND --ND ------
ug/L 11/23/04 ----ND ND --ND ND ND --ND ND --ND ------
ug/L 05/16/05 ----------ND ND ND --ND ND --ND ------
ug/L 11/25/05 ----------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --100 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --100 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --100 --ND --ND ND ND ND ND ND --ND ----ND
ug/L 11/13/07 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --100 --ND --ND ND ND ND ND ND ND 1.7 J ----ND
ug/L 05/26/09 --100 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --100 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --100 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --100 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 1.1 100 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 26 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Tetrachloroethene ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 0.7 ug/L ug/L 02/21/00 --2 ND --------------------------
EPA MCL = 5 ug/L ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --1 --ND --ND ND ND ND ND 0.79 J --ND ----ND
ug/L 11/13/07 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --1 --ND --ND ND ND ND ND 0.49 J 0.41 J ND ----ND
ug/L 05/26/09 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --1 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.17 1 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 27 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Trichloroethene ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 3 ug/L ug/L 02/21/00 --2 ND --------------------------
EPA MCL = 5 ug/L ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --1 --ND --ND ND ND ND ND 0.33 J --ND ----ND
ug/L 11/13/07 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/29/08 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/17/08 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --1 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.15 1 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 28 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Vinyl chloride ug/L 01/11/00 --2 ND --------ND --ND ND --ND ------
NC 2L = 0.03 ug/L ug/L 02/21/00 --2 ND --------------------------
EPA MCL = 2 ug/L ug/L 02/22/00 --2 ----------------ND --ND ------
ug/L 10/10/00 --10 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --10 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --10 ----------ND --ND ----ND ------
ug/L 05/28/02 --10 ND --------ND --ND ----ND ------
ug/L 11/05/02 --10 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --10 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --10 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --10 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --10 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --10 ------ND ND ND --ND ND --ND ------
ug/L 05/24/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 11/20/06 --10 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --1 --ND --ND ND ND --ND 1.6 --ND ----ND
ug/L 08/07/07 --1 ----------------ND --------ND
ug/L 11/13/07 --1 --ND --ND ND ND ND ND 0.74 J 0.43 J ND ----ND
ug/L 05/29/08 --1 --ND --ND ND ND ND ND 0.46 J ND ND ----ND
ug/L 11/17/08 --1 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/09 --1 --ND --ND ND ND ND ND ND 0.54 J ND ----ND
ug/L 11/10/09 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --1 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --1 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --1 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.32 1 ------ND ND ND ND ND ND --ND ND ND ND
January 2015 Page 29 of 29 Project No. 0739603714.100
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MDLDetected Monitoring Constituent/Parameter Reporting Units Sample Date
SWS
Reporting
Limit
Upgradient
TABLE 4
Summary of Groundwater Monitoring Results for MSW Wells
Detected Constituents
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
Blanks
Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106 MW-107S MW-107D MW-108 GGI Outfall 2GGI Outfall 1
Xylenes (Total)ug/L 01/11/00 --6 ND --------ND --ND ND --ND ------
NC 2L = 500 ug/L ug/L 02/21/00 --6 ND --------------------------
EPA MCL = 10000 ug/L ug/L 02/22/00 --6 ----------------ND --ND ------
ug/L 10/10/00 --5 ND --------ND --ND ND --ND ------
ug/L 07/12/01 --5 ND --------ND --ND ND --ND ------
ug/L 10/24/01 --5 ----------ND --ND ----ND ------
ug/L 05/28/02 --5 ND --------ND --ND ----ND ------
ug/L 11/05/02 --5 ND --------ND --ND ND --ND ------
ug/L 05/29/03 --5 ND --------ND --ND ND --ND ------
ug/L 11/05/03 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/25/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 11/23/04 --5 ND ----ND ND ND --ND ND --ND ------
ug/L 05/16/05 --5 ------ND ND ND --ND ND --ND ------
ug/L 11/25/05 --5 ------ND ND ND --ND 18.2 --ND ------
ug/L 05/24/06 --5 ------ND ND ND --ND 18.1 --ND ----ND
ug/L 11/20/06 --5 ------ND ND ND --ND ND --ND ----ND
ug/L 05/22/07 --5 --ND --ND ND ND ND ND 5.7 --ND ----ND
ug/L 08/07/07 --5 ----------------2.7 J --------ND
ug/L 11/13/07 --5 --ND --ND ND ND ND ND 2.2 J 0.76 J ND ----ND
ug/L 05/29/08 --5 --ND --ND ND ND ND ND 2.2 J 1.9 J ND ----ND
ug/L 11/17/08 --5 --ND --ND ND ND ND ND ND 0.41 J 0.48 J ----ND
ug/L 05/26/09 --5 --ND --ND ND ND ND ND ND ND ND ----ND
ug/L 11/10/09 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/26/10 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/15/10 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/09/11 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 11/14/11 --5 ------ND ND ND ND ND ND ND ND ----ND
ug/L 05/07/12 --5 ------ND ND ND ND ND Dry ND ND ----ND
ug/L 11/05/12 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/13/13 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/11/13 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 05/12/14 --5 ------ND ND ND ND ND ND --ND ND ND ND
ug/L 11/17/14 0.45 5 ------ND ND ND ND ND ND --ND ND ND ND
Notes:ug/L =micrograms per liter
ND =Not detected at the stated reporting limit
J =Estimated value
B =Blank-qualified data
-- =no data
# =EPA Action Level
* = EPA Secondary MCL
Bold only =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard
Shaded and Bold =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard and EPA MCL
GGI = Gravity Groundwater Intercept
Blanks =field, trip and method blanks
Standards =NC 2L Groundwater Standards or North Carolina Solid Waste Section Groundwater Protection Standards
SWS Reporting Limit =NCPQL or lab-specific reporting limit prior to 2007 and NCSWSL starting in 01/18/07
SWS GPS =Solid Waste Section Groundwater Protection Standard
EPA MCL =US Environmental Protection Agency Maximum Contaminant Level
NC 2L = North Carolina 2L Groundwater Standard
1) MW-100A and MW-105A are replacement wells for MW-100 and MW-105, respectively. MW-100B replaced MW-100A prior to the May 2010 sampling event.
2) Data prior to 2/28/07 provided by Richardson, Smith, Gardner and Associates.
3) Additions to GGI-1 were not constrtucted by the May 2010 compliance event. Golder returned to sample GGI-1 on 6-29-10 and the sampling point was dry.
4) Results from laboratory re-analyses are reported in parentheses.
5) The following dilutions were perfomed during the November 2014 sampling event: Thallium (5x) in MW-104, MW-107S, and MW-108.
January 2015 Page 1 of 6 Project No. 0739603714.100
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pH (field)S.U.05/28/02 4.1 --------4.4 --4.6 ----4.5 ----
S.U.11/05/02 4.3 --------4.5 --4.6 4.6 --4.7 ----
S.U.05/29/03 4.4 --------4.3 --3.9 4.1 --4.6 ----
S.U.11/05/03 ------4.5 4.5 ----------------
S.U.05/24/06 ------4.9 4.5 4.4 --4.9 4.3 --4.8 ----
S.U.11/20/06 ------4.8 4.8 4.3 --4.8 3.6 --4.5 ----
S.U.05/22/07 --5.55 --4.40 4.18 3.91 4.56 4.10 3.82 --4.40 ----
Verification Event S.U.08/07/07 ----------------3.50 --------
S.U.11/13/07 --5.80 --4.26 4.55 4.21 4.73 4.78 3.70 4.38 4.26 ----
Verification Event S.U.01/09/08 --------------4.54 ----------
S.U.05/29/08 --4.92 --4.23 4.22 3.72 4.53 4.74 3.40 4.14 4.17 ----
S.U.11/17/08 --5.10 --4.16 4.04 3.68 3.79 5.29 3.24 3.90 5.11 ----
Verification Event S.U.02/17/09 --------------------4.64 ----
S.U.05/26/09 --5.01 --4.69 4.55 3.93 4.48 5.47 3.62 4.09 4.75 ----
Verification Event S.U.07/23/09 ----------3.94 --------------
S.U.11/10/09 --4.80 --4.56 4.47 3.77 4.28 4.08 3.46 3.72 4.35 ----
Verification Event S.U.01/18/10 --------------3.43 --------
S.U.05/26/10 ----6.06 3.34 4.07 3.76 4.06 5.55 3.34 3.56 4.06 ----
S.U.11/15/10 ----7.11 4.92 4.75 3.86 4.20 6.32 3.50 3.82 4.31 ----
Verification Event S.U.12/21/10 --------------------4.38 ----
S.U.05/09/11 ----4.54 4.08 3.81 3.63 3.54 3.66 2.88 3.18 3.39 ----
S.U.11/14/11 ----5.13 5.16 5.20 3.90 4.64 4.19 3.64 4.01 4.25 ----
Verification Event S.U.01/17/12 --------------------------
S.U.05/07/12 ----5.53 4.02 3.36 3.69 3.67 3.60 Dry 3.22 3.89 ----
Verification Event S.U.07/11/12 --------------------------
S.U.11/05/12 ----5.38 4.29 3.89 4.04 4.44 4.11 3.09 --4.31 4.04 4.77
Verification Event S.U.01/10/13 ----------------3.31 --------
S.U.05/13/13 ----6.61 4.56 4.35 4.35 3.96 5.70 3.46 --4.29 4.04 5.48
S.U.11/11/13 ----5.75 4.76 4.88 4.13 4.61 4.18 3.60 --4.35 4.33 4.68
S.U.05/12/14 ----6.42 5.00 4.87 4.43 4.67 4.31 3.86 --4.43 5.72 4.43
S.U.11/17/14 ----5.33 4.17 4.26 3.64 4.17 3.45 3.42 --3.69 6.32 5.06
GGI Outfall 1 GGI Outfall 2MW-107S MW-107D
TABLE 5
Summary of Field Parameters for MSW Wells
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
MW-108
Upgradient Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
January 2015 Page 2 of 6 Project No. 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Tables\Sampson County Active MSW Landfill Nov 2014.xlsx
GGI Outfall 1 GGI Outfall 2MW-107S MW-107D
TABLE 5
Summary of Field Parameters for MSW Wells
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
MW-108
Upgradient Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
Specific Conductance (field)uS/cm 05/28/02 160 --------55 --26 ----38 ----
uS/cm 11/05/02 164 --------97 --31 53 --56 ----
uS/cm 05/29/03 --------------------------
uS/cm 11/05/03 ------54 44 ----------------
uS/cm 05/24/06 ------21 20 183 --24 271 --42 ----
uS/cm 11/20/06 ------33 25 148 --34 1142 --315 ----
uS/cm 05/22/07 --450 --20 11 270 300 14 685 --161 ----
Verification Event uS/cm 08/07/07 ----------------529 --------
uS/cm 11/13/07 --495 --29 29 220 65 54 777 226 538 ----
Verification Event uS/cm 01/09/08 --------------57 ----------
uS/cm 05/29/08 --213 --39 25 660 56 44 500 169 499 ----
uS/cm 11/17/08 --193 --81 38 299 50 62 769 157 1020 ----
Verification Event uS/cm 02/17/09 --------------------524 ----
uS/cm 05/26/09 --228 --15 26 437 53 41 648 222 676 ----
Verification Event uS/cm 07/23/09 ----------578 --------------
uS/cm 11/10/09 --177 --18 27 492 75 45 1265 329 422 ----
Verification Event uS/cm 01/18/10 ----------------1057 --------
uS/cm 05/26/10 ----524 16 22 675 94 85 1.123 452 508 ----
uS/cm 11/15/10 ----385 20 22 581 215 172 1346 606 590 ----
Verification Event uS/cm 11/15/10 --------------------597 ----
uS/cm 05/09/11 ----423 21 23 190 118 67 1201 709 599 ----
uS/cm 11/14/11 ----313 18 17 636 83 46 980 584 392 ----
Verification Event uS/cm 01/17/12 --------------------------
uS/cm 05/07/12 ----356 17 17 726 83 95 Dry 645 685 ----
Verification Event uS/cm 07/11/12 --------------------------
uS/cm 11/05/12 ----257 21 19 441 78 58 1339 --508 332 123
Verification Event uS/cm 01/10/13 ----------------640 --------
uS/cm 05/13/13 ----353 19 18 480 72 69 452 --363 337 245
uS/cm 11/11/13 ----473 93 83 389 194 106 1019 --351 303 164
uS/cm 05/12/14 ----1018 61 46 402 106 86 348 --525 479 259
uS/cm 11/17/14 ----493 27 24 336 115 62 866 --547 498 261
January 2015 Page 3 of 6 Project No. 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Tables\Sampson County Active MSW Landfill Nov 2014.xlsx
GGI Outfall 1 GGI Outfall 2MW-107S MW-107D
TABLE 5
Summary of Field Parameters for MSW Wells
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
MW-108
Upgradient Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
Temperature (field)Celsius 05/28/02 19.00 --------22.00 --20.00 ----20.00 ----
Celsius 11/05/02 18.00 --------21.00 --21.00 22.00 --21.00 ----
Celsius 05/29/03 18.00 --------18.00 --17.00 19.00 --19.00 ----
Celsius 11/05/03 ------22.00 20.00 ----------------
Celsius 05/24/06 ------17.00 22.00 21.00 --20.00 21.00 --25.00 ----
Celsius 11/20/06 ------19.00 18.00 19.00 --19.00 20.00 --21.00 ----
Celsius 05/22/07 --22.71 --18.84 17.90 18.11 17.22 17.16 19.88 --21.98 ----
Verification Event Celsius 08/07/07 ----------------22.39 --------
Celsius 11/13/07 --19.88 --22.07 20.98 22.33 20.09 21.70 27.22 22.71 23.85 ----
Verification Event Celsius 01/09/08 --------------17.93 ----------
Celsius 05/29/08 --18.88 --18.54 18.32 19.23 17.69 16.83 23.83 21.09 21.35 ----
Celsius 11/17/08 --16.95 --21.22 18.68 21.29 19.45 19.23 21.13 19.98 22.48 ----
Verification Event Celsius 02/17/09 --------------------21.00 ----
Celsius 05/26/09 --18.61 --19.10 18.14 19.84 18.05 19.20 20.82 20.10 22.36 ----
Verification Event Celsius 07/23/09 ----------26.46 --------------
Celsius 11/10/09 --18.99 --22.02 20.64 21.38 20.35 21.74 20.74 21.96 24.02 ----
Verification Event Celsius 01/18/10 --------------18.49 --------
Celsius 05/26/10 ----18.64 17.62 18.76 20.16 17.41 19.25 20.92 19.90 22.14 ----
Celsius 11/15/10 ----20.47 22.64 18.94 21.85 20.02 21.10 21.17 22.92 24.23 ----
Verification Event Celsius 12/21/10 --------------------21.18 ----
Celsius 05/09/11 ----16.59 20.26 17.36 19.16 17.73 18.66 21.48 19.78 21.57 ----
Celsius 11/14/11 ----19.48 23.41 20.1 21.87 19.93 22.19 20.69 21.95 24.55 ----
Verification Event Celsius 01/17/12 --------------------------
Celsius 05/07/12 ----18.70 20.37 18.34 19..51 17.51 19.48 Dry 22.37 23.52 ----
Verification Event Celsius 07/11/12 --------------------------
Celsius 11/05/12 ----18.20 22.53 19.91 22.33 18.52 20.82 18.92 --23.57 20.79 21.56
Verification Event Celsius 01/10/13 ----------------19.20 --------
Celsius 05/13/13 ----19.26 21.02 20.45 20.52 16.20 21.53 14.84 --21.22 20.56 21.94
Celsius 11/11/13 ----20.3 22.8 20.7 24.3 19.1 21.6 18.7 --24.0 21.7 22.5
Celsius 05/12/14 ----21.0 20.1 19.4 20.4 17.0 21.0 16..2 --21.5 27.7 24.3
Celsius 11/17/14 ----20.3 21.1 20.1 22.7 15.3 21.1 17.4 --23.4 8.8 6.6
January 2015 Page 4 of 6 Project No. 0739603714.100
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GGI Outfall 1 GGI Outfall 2MW-107S MW-107D
TABLE 5
Summary of Field Parameters for MSW Wells
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
MW-108
Upgradient Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
Turbidity (field)NTU 05/22/07 --0 --32 20.2 17 61.4 68.1 0 --113 ----
Verification Event NTU 08/07/07 ---------------->1000 --------
NTU 11/13/07 --133 --45.5 16.7 44.8 75.3 38.7 271 39.4 32.2 ----
Verification Event NTU 01/09/08 --------------20.2 ----------
NTU 05/29/08 --197 --7.80 8.56 8.66 99.1 61.0 9.36 6.88 5.49 ----
NTU 11/17/08 --36.9 --28.1 2.31 25.6 7.91 8.26 11.6 1.10 6.86 ----
Verification Event NTU 02/17/09 --------------------1.27 ----
NTU 05/26/09 --18.9 --7.61 41.7 45.1 30.3 49.2 7.65 3.96 7.62 ----
Verification Event NTU 07/23/09 ----------19.6 --------------
NTU 11/10/09 --34.6 --97.0 17.7 5.13 1.94 73.0 54.10 1.37 4.10 ----
Verification Event NTU 01/18/10 ----------------16.4 --------
NTU 05/26/10 ----16.4 9.16 3.29 19.5 0.47 9.94 19.5 1.76 1.10 ----
NTU 11/15/10 ----3.36 16.2 3.05 2.35 1.32 18.1 41.3 1.62 1.92 ----
Verification Event NTU 12/21/10 --------------------10.4 ----
NTU 05/09/11 ----1.75 10.8 3.39 4.83 0.42 6.05 12.7 1.03 0.69 ----
NTU 11/14/11 ----18.1 8.32 26.7 5.82 3.77 16.0 32.6 2.94 1.23 ----
NTU 01/17/12 --------------------------
NTU 05/07/12 ----4.58 77.4 16.3 6.44 2.46 227 Dry 2.60 4.35 ----
Verification Event NTU 07/11/12 --------------------------
NTU 11/05/12 ----12.1 2.22 6.49 3.57 11.6 88.1 23.7 --2.14 7.36 1.21
Verification Event NTU 01/10/13 ----------------214 --------
NTU 05/13/13 ----4.03 6.35 2.85 6.14 4.38 26.2 3.56 --1.21 1.40 3.31
NTU 11/11/13 ----3.82 4.04 5.00 12.2 16.4 12.0 21.0 --10.5 2.33 1.85
NTU 05/12/14 ----3.74 7.26 5.23 6.61 92.5 8.66 4.63 --3.18 7.41 4.56
NTU 11/17/14 ----1.38 9.21 2.22 5.22 51.1 31.0 13.6 --6.37 13.6 7.42
January 2015 Page 5 of 6 Project No. 0739603714.100
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GGI Outfall 1 GGI Outfall 2MW-107S MW-107D
TABLE 5
Summary of Field Parameters for MSW Wells
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
MW-108
Upgradient Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
ORP (field)millivolts 05/22/07 ------332 350 349 229 235 ----66 ----
millivolts 11/13/07 ------317 333 404 266 312 351 322 279 ----
Verification Event millivolts 01/09/08 --------------150 ----------
millivolts 05/29/08 ------303 317 404 186 55 308 280 187 ----
millivolts 11/17/08 ------314.0 310.6 350.7 240.7 91.0 358.1 310.5 -60.3 ----
Verification Event millivolts 02/17/09 --------------------50.7 ----
millivolts 05/26/09 ------202.2 219.5 311.9 218.3 142.9 331.2 277.7 61.5 ----
Verification Event millivolts 07/23/09 ----------576 --------------
millivolts 11/10/09 ------251.7 260.8 331.2 252.8 277.9 299.4 321.9 227.8 ----
Verification Event millivolts 01/18/10 --------------312.5 --------
millivolts 05/26/10 ------241.2 217.2 263.2 215.1 43.6 298.1 272.5 232 ----
millivolts 11/15/10 ------243.2 254.5 366.7 340.3 -19.0 341.1 312.0 260.9 ----
Verification Event millivolts 12/21/10 --------------------212.3 ----
millivolts 05/09/11 ------237.4 255.2 229.9 230.9 242.3 314.8 266.5 266.4 ----
millivolts 11/14/11 ------98.9 91.7 169.0 109.9 118.4 374.4 238.7 177.6 ----
millivolts 05/07/12 ------243.3 271.3 256.7 222.5 160.9 Dry 289.5 225.4 ----
Verification Event millivolts 07/11/12 --------------------------
millivolts 11/05/12 ----10.8 149.3 165.7 153.1 99.4 119.3 ----100.7 224.7 213.7
millivolts 05/13/13 ----86.8 127.1 138.5 132.3 113.1 -17.0 ----101.5 130.1 93.4
millivolts 11/11/13 ----265.8 341.5 332.4 392.5 281.7 134.4 ----359.1 402.3 352.5
millivolts 05/12/14 ----180.6 315.1 337.3 405.2 280.5 410.2 ----418.8 287.5 361.7
millivolts 11/17/14 ----194.4 159.6 199.2 257.8 297.8 267.0 ----316.3 155.5 83.5
January 2015 Page 6 of 6 Project No. 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Tables\Sampson County Active MSW Landfill Nov 2014.xlsx
GGI Outfall 1 GGI Outfall 2MW-107S MW-107D
TABLE 5
Summary of Field Parameters for MSW Wells
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
MW-108
Upgradient Downgradient
MW-100 MW-100A MW-100B MW-102A MW-103A MW-104 MW-105A MW-106
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
Dissolved Oxygen (field)mg/L 05/22/07 ------3.90 8.80 1.50 2.20 4.50 ----0.40 ----
mg/L 11/13/07 ------7.91 8.30 1.60 4.05 4.68 2.49 1.06 0.78 ----
Verification Event mg/L 01/09/08 --------------2.64 ----------
mg/L 05/29/08 ------6.97 9.23 1.44 0.30 1.01 0.91 0.37 1.99 ----
mg/L 11/17/08 ------8.21 8.14 10.09 2.83 2.80 4.18 1.62 10.34 ----
Verification Event mg/L 02/17/09 --------------------0.39 ----
mg/L 05/26/09 ------9.23 8.90 4.03 0.84 3.50 1.90 0.66 1.46 ----
Verification Event mg/L 07/23/09 ----------1.81 --------------
mg/L 11/10/09 ------8.40 8.58 2.85 2.72 4.57 0.87 0.55 0.79 ----
Verification Event mg/L 01/18/10 --------------1.35 --------
mg/L 05/26/10 ------8.34 7.91 2.39 0.82 1.27 1.04 0.60 0.99 ----
mg/L 11/15/10 ------7.40 8.72 2.02 1.03 1.66 2.84 1.09 3.04 ----
Verification Event mg/L 12/21/10 --------------------1.74 ----
mg/L 05/09/11 ------7.48 8.02 6.18 0.61 5.00 4.46 0.63 0.71 ----
mg/L 11/14/11 ------7.66 7.83 4.98 0.99 3.42 3.16 2.70 1.41 ----
mg/L 05/07/12 ------8.87 8.51 6.48 0.80 4.19 Dry 2.14 1.73 ----
Verification Event mg/L 07/11/12 --------------------------
mg/L 11/05/12 ----0.49 6.84 7.06 3.45 1.09 2.76 ----1.53 5.39 4.38
mg/L 05/13/13 ----0.49 7.08 7.44 4.88 0.37 2.13 ----1.47 6.28 2.93
mg/L 11/11/13 ----0.52 7.26 8.04 3.59 1.21 2.72 ----1.35 5.41 3.41
mg/L 05/12/14 ----1.02 8.25 9.01 5.89 0.62 5.46 ----1.27 5.50 2.03
mg/L 11/17/14 ----0.60 7.76 7.19 2.64 0.70 4.97 ----1.72 6.26 7.29
Notes:mg/L =milligrams per literS.U. =Standard UnitsNTU =Nephelometric Turbidity Units
ND =Not detected at the stated reporting limituS/cm=microsiemens per centimeter-- =no dataGGI = Gravity Groundwater Intercept
January 2015 Page 1 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BNAntimony ug/L 10/08/96 --5 ND ND ND --------SWS GPS = 1 ug/L ug/L 02/18/97 --5 ND ND ND --------EPA MCL = 6 ug/L ug/L 08/29/97 --30 ND ND ND --------ug/L 02/23/98 --10 ND ND ND --------ug/L 08/24/98 --10 ND ND ND --------ug/L 02/22/99 --10 ND ND ND --------ug/L 08/23/99 --10 ND ND ND --------ug/L 02/21/00 --10 ND ND ND --------ug/L 07/12/01 --30 ND ND ND ND ND ND --ug/L 10/24/01 --30 ND ND ND ND ND ND --ug/L 05/28/02 --30 --------------ug/L 11/05/02 --30 --------------ug/L 05/29/03 --30 --------------ug/L 11/05/03 --30 --------------ug/L 05/25/04 --30 --------------ug/L 11/23/04 --30 --------------ug/L 05/16/05 --30 --------------ug/L 11/25/05 --30 --------------ug/L 05/24/06 --30 ------------NDug/L 11/20/06 --30 ------------NDug/L 05/22/07 --6 0.63 J ND ND ND ND ND NDug/L 11/14/07 --6 ND ND ND ND ND ND NDug/L 05/29/08 --6 ND ND ND ND ND ND NDug/L 11/17/08 --6 ND ND ND ND ND ND NDug/L 05/27/09 --6 ND ND ND ND ND ND NDug/L 11/11/09 --6 0.661 J 0.474 J 0.251 B ND 0.302 B ND 0.0730 Jug/L 05/26/10 --6 ND ND ND ND ND ND NDug/L 11/15/10 --6 ND ND ND ND ND ND NDug/L 05/09/11 --6 ND ND ND ND ND ND NDug/L 11/14/11 --6 ND ND ND ND ND ND NDug/L 05/08/12 --6 0.382 J ND 1.15 J ND 0.390 J ND NDug/L 11/05/12 --6 ND ND ND ND ND ND NDug/L 05/14/13 --6 ND ND ND ND ND ND NDug/L 11/12/13 --6 ND ND ND ND ND ND NDug/L 05/13/14 --6 ND ND ND ND ND ND NDug/L 11/17/14 0.220 6 ND 0.762 J ND ND ND ND NDArsenic ug/L 10/08/96 --5 ND ND ND --------NC 2L = 10 ug/L ug/L 02/18/97 --5 ND ND ND --------EPA MCL = 10 ug/L ug/L 08/29/97 --10 ND ND ND --------ug/L 02/23/98 --5 ND ND ND --------ug/L 08/24/98 --5 ND 6.18 13 --------ug/L 02/22/99 --5 ND ND 9.09 --------ug/L 08/23/99 --5 ND 9.11 16 --------ug/L 02/21/00 --5 ND 9.94 9.64 --------ug/L 10/10/00 --10 ND ND 13 ND ND ND --ug/L 07/12/01 --10 ND ND ND ND ND ND --ug/L 10/24/01 --10 ND ND ND ND ND ND --ug/L 05/28/02 --10 ND ND ND ND ND ND --ug/L 11/05/02 --10 ND ND ND ND ND ND --ug/L 05/29/03 --10 ND ND ND ND ND ND --ug/L 11/05/03 --10 --------------ug/L 05/25/04 --10 ND 12 ND ND ND ND --ug/L 11/23/04 --10 ND ND ND ND ND ND --ug/L 05/16/05 --10 ND ND ND ND ND ND --ug/L 11/25/05 --10 ND ND ND ND ND ND --ug/L 05/24/06 --10 ND ND ND ND ND ND NDug/L 11/20/06 --10 ND 14 ND 10 ND ND NDug/L 05/22/07 --10 ND ND ND ND ND ND 2.2 Jug/L 11/14/07 --10 ND ND ND ND ND ND NDug/L 05/29/08 --10 ND ND 4.8 B ND 3.2 B 2.0 B 3.2 Jug/L 11/17/08 --10 ND ND ND ND ND ND NDug/L 05/27/09 --10 3.2 J 6.2 J 9.2 J ND ND ND NDug/L 11/11/09 --10 ND ND ND ND ND ND NDug/L 05/26/10 --10 ND 3.76 J 7.44 J ND ND ND NDug/L 11/15/10 --10 ND 3.25 B ND ND ND ND 3.98 Jug/L 05/09/11 --10 ND ND 7.77 J 3.11 J ND ND NDug/L 11/14/11 --10 ND ND ND ND 3.67 J ND NDug/L 05/08/12 --10 ND ND ND ND ND ND NDug/L 11/05/12 --10 3.57 B 3.43 B ND 3.18 B 4.00 B ND 4.48 Jug/L 05/14/13 --10 ND ND ND ND ND ND NDug/L 11/12/13 --10 ND ND ND ND ND ND NDug/L 05/13/14 --10 ND ND ND ND ND ND NDug/L 11/17/14 5.40 10 ND ND ND ND ND ND ND
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
January 2015 Page 2 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Barium ug/L 10/08/96 ----31 28 25 --------NC 2L = 700 ug/L ug/L 02/18/97 --500 26 71 23 --------EPA MCL = 2000 ug/L ug/L 08/29/97 --500 ND ND ND --------ug/L 02/23/98 ----47 165 180 --------ug/L 08/24/98 ----34.3 178 159 --------ug/L 02/22/99 ----37.9 145 162 --------ug/L 08/23/99 ----64.1 148 201 --------ug/L 02/21/00 ----28.6 157 195 --------ug/L 10/10/00 --500 ND ND ND ND ND ND --ug/L 07/12/01 --500 ND ND ND ND ND ND --ug/L 10/24/01 --500 ND ND ND ND ND ND --ug/L 05/28/02 --500 ND ND ND ND ND ND --ug/L 11/05/02 --500 ND ND ND ND ND ND --ug/L 05/29/03 --500 ND ND ND ND ND ND --ug/L 11/05/03 --500 --------------ug/L 05/25/04 --500 ND ND ND ND ND ND --ug/L 11/23/04 --500 ND ND ND ND ND ND --ug/L 05/16/05 --500 ND ND ND ND ND ND --ug/L 11/25/05 --500 ND ND ND ND ND ND --ug/L 05/24/06 --500 ND ND ND ND ND ND NDug/L 11/20/06 --500 ND ND ND ND ND ND NDug/L 05/22/07 --100 105 90.2 J 151 80.5 J 69.7 J 36.7 J 0.3 Jug/L 11/14/07 --100 253 101 95.2 J 120 73.3 J 33.1 J 0.20 Jug/L 05/29/08 --100 111 60.5 J 138 91.4 J 55.2 J 29.5 J 0.6 Jug/L 11/17/08 --100 109 61.3 J 148 51.5 J 18.2 J 36.7 J NDug/L 05/27/09 --100 96.2 J 60.5 J 156 78.2 J 44.1 J 34.9 J NDug/L 11/11/09 --100 225 69.8 J 95.2 J 93.5 J 74.1 J 33.0 J NDug/L 05/26/10 --100 50.1 J 76.2 J 119 29.7 J 16.1 J 33.0 J NDug/L 11/15/10 --100 56.0 J 55.7 J 107 96.7 J 36.5 J 34.1 J NDug/L 05/09/11 --100 135 71.7 J 137 68.8 J 51.6 J 31.8 J NDug/L 11/14/11 --100 166 73.1 J 115 53.8 J 69.7 J 36.3 J NDug/L 05/08/12 --100 146 60.5 J 127 43.0 J 55.9 J 29.3 J NDug/L 11/05/12 --100 233 81.4 J 138 75.3 J 65.2 J 37.6 J NDug/L 05/14/13 --100 229 60.5 J 104 25.2 J 30.0 J 36.4 J 1.21 J
ug/L 11/12/13 --100 126 61.5 J 155 52.9 J 52.3 J 33.8 J 1.22 Jug/L 05/13/14 --100 68.1 J 47.2 J 153 13.4 J 26.6 J 32.0 J NDug/L 11/17/14 1.00 100 179 56.8 J 147 150 53.7 J 31.6 J NDBerylliumug/L 10/08/96 --1 ND ND ND --------GWPS = 4 ug/L ug/L 10/24/96 ------------------EPA MCL = 4 ug/L ug/L 02/18/97 --1 ND ND ND --------ug/L 02/19/97 --1 --------------ug/L 04/24/97 ------------------ug/L 08/28/97 --2 --------------ug/L 08/29/97 --2 ND ND ND --------ug/L 10/09/97 ------------------ug/L 10/30/97 ------------------ug/L 02/23/98 --5 ND ND ND --------ug/L 02/24/98 --5 --------------ug/L 04/20/98 ------------------ug/L 08/24/98 --5 ND ND ND --------ug/L 10/27/98 ------------------ug/L 02/22/99 --5 ND ND ND --------ug/L 04/20/99 ------------------ug/L 08/23/99 --5 ND ND ND --------ug/L 08/24/99 --5 --------------ug/L 01/11/00 --5 --------------ug/L 02/21/00 --5 ND ND ND --------ug/L 02/22/00 --5 --------------ug/L 10/10/00 --2 --------------ug/L 07/12/01 --2 ND ND ND ND ND ND --ug/L 10/24/01 --2 ND ND ND ND ND ND --ug/L 05/28/02 --2 --------------ug/L 11/05/02 --2 --------------ug/L 05/29/03 --2 --------------ug/L 11/05/03 --2 --------------ug/L 05/25/04 --2 --------------ug/L 11/23/04 --2 --------------ug/L 05/16/05 --2 --------------ug/L 11/25/05 --2 --------------ug/L 05/24/06 --2 ------------NDug/L 11/20/06 --2 ------------NDug/L 05/22/07 --1 ND ND ND ND ND ND NDug/L 11/14/07 --1 ND ND ND ND ND ND NDug/L 05/29/08 --1 ND ND ND ND ND ND NDug/L 11/17/08 --1 ND ND ND ND ND ND NDug/L 05/27/09 --1 0.11 J ND ND 0.09 J ND ND NDug/L 11/11/09 --1 0.245 J ND ND ND ND ND NDug/L 05/26/10 --1 ND ND ND ND ND ND NDug/L 11/15/10 --1 ND ND ND ND ND 0.115 B 0.106 Jug/L 05/09/11 --1 ND ND ND ND ND ND NDug/L 11/14/11 --1 0.162 J ND ND ND 0.101 J 0.108 J NDug/L 05/08/12 --1 0.188 J ND ND ND ND ND NDug/L 11/05/12 --1 0.208 J ND ND 0.102 J ND ND NDug/L 05/14/13 --1 0.185 J ND ND ND ND ND ND
ug/L 11/12/13 --1 0.111 J ND ND ND ND ND NDug/L 05/13/14 --1 ND ND ND ND ND ND NDug/L 11/17/14 0.100 1 0.160 J ND ND 0.203 J ND 0.114 J ND
January 2015 Page 3 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Cadmium ug/L 02/05/96 --1 ND ------------NC 2L = 2 ug/L ug/L 10/08/96 --1 --ND ND --------EPA MCL = 5 ug/L ug/L 02/18/97 --1 ND ND ND --------ug/L 08/29/97 --1 ND ND ND --------ug/L 02/23/98 --5 ND ND ND --------ug/L 08/24/98 --5 ND ND ND --------ug/L 02/22/99 --5 ND ND ND --------ug/L 08/23/99 --5 ND ND ND --------ug/L 02/21/00 --5 ND ND ND --------ug/L 10/10/00 --1 ND 7 4 ND ND ND --ug/L 07/12/01 --1 ND 6 3 ND ND ND --ug/L 10/24/01 --1 ND 4 3 ND ND ND --ug/L 05/28/02 --1 ND ND ND ND ND ND --ug/L 11/05/02 --1 ND ND ND ND ND ND --ug/L 05/29/03 --1 ND ND ND ND ND ND --ug/L 11/05/03 --1 --------------ug/L 05/25/04 --1 ND ND ND ND ND ND --ug/L 11/23/04 --1 ND ND ND ND ND ND --ug/L 05/16/05 --1 ND ND ND ND ND ND --ug/L 11/25/05 --1 ND ND ND ND ND ND --ug/L 05/24/06 --1 ND ND ND ND ND ND NDug/L 11/20/06 --1 ND ND ND ND ND ND NDug/L 05/22/07 --1 0.50 J ND ND ND ND ND NDug/L 11/14/07 --1 ND ND ND ND ND 0.50 J NDug/L 05/29/08 --1 ND ND ND ND ND ND 0.5 Jug/L 11/17/08 --1 ND ND ND ND ND ND NDug/L 05/27/09 --1 0.20 J 0.24 J 0.14 J ND 0.14 J ND NDug/L 11/11/09 --1 ND ND ND ND ND ND NDug/L 05/26/10 --1 ND ND ND ND ND ND NDug/L 11/15/10 --1 ND ND ND ND ND 0.400 J NDug/L 05/09/11 --1 ND ND ND ND ND ND NDug/L 11/14/11 --1 ND ND ND ND ND ND NDug/L 05/08/12 --1 ND ND ND ND ND ND NDug/L 11/05/12 --1 ND ND ND ND ND ND NDug/L 05/14/13 --1 ND ND ND ND ND ND ND
ug/L 11/12/13 --1 ND ND ND ND ND ND NDug/L 05/13/14 --1 ND ND ND ND ND ND NDug/L 11/17/14 0.360 1 0.564 J ND ND ND ND ND NDChromium ug/L 10/08/96 --2 ND ND ND --------NC 2L = 10 ug/L ug/L 02/18/97 --2 ND ND ND --------EPA MCL = 100 ug/L ug/L 08/29/97 --10 ND ND ND --------ug/L 02/23/98 --5 ND ND ND --------ug/L 08/24/98 --5 ND ND ND --------ug/L 02/22/99 --5 ND ND ND --------ug/L 08/23/99 --5 ND ND ND --------ug/L 02/21/00 --5 ND ND ND --------ug/L 10/10/00 --10 ND ND ND ND ND ND --ug/L 07/12/01 --10 ND ND ND 22 ND ND --ug/L 10/24/01 --10 ND ND ND ND ND ND --ug/L 05/28/02 --10 20 ND ND 28 19 ND --ug/L 11/05/02 --10 ND ND ND ND ND ND --ug/L 05/29/03 --10 ND ND ND 96 ND ND --ug/L 11/05/03 --10 --------------ug/L 05/25/04 --10 ND ND ND ND ND ND --ug/L 11/23/04 --10 ND ND ND ND 14 ND --ug/L 05/16/05 --10 ND ND ND ND ND ND --ug/L 11/25/05 --10 ND ND ND ND ND ND --ug/L 05/24/06 --10 ND ND ND ND ND ND NDug/L 11/20/06 --10 ND ND ND 31 ND ND NDug/L 05/22/07 --10 ND ND ND 52.9 ND ND NDug/L 11/14/07 --10 ND ND ND 12.7 ND ND NDug/L 05/29/08 --10 ND ND ND 8.2 J 2.0 J ND NDug/L 11/17/08 --10 3.4 B ND ND 14.1 B 3.3 B 1.4 B 4.9 Jug/L 05/27/09 --10 ND ND ND 7.5 J 1.4 J ND NDug/L 11/11/09 --10 ND 27.0 2.64 J 39.2 8.53 J ND NDug/L 05/26/10 --10 ND 4.34 J 1.86 J 14.5 5.23 J ND NDug/L 11/15/10 --10 ND 4.54 J 1.59 J 11.6 2.41 J ND NDug/L 05/09/11 --10 ND ND 2.56 J 4.31 J 3.60 J ND NDug/L 11/14/11 --10 ND 1.47 J 3.20 J 3.89 J 13.7 ND NDug/L 05/08/12 --10 2.09 J 2.67 J 2.61 J 12.4 14.2 ND NDug/L 11/05/12 --10 19.4 1.14 J 1.73 J 14.8 11.2 ND NDug/L 05/14/13 --10 1.93 J 2.31 J 1.60 J 24.8 7.86 J ND ND
ug/L 11/12/13 --10 1.97 J ND 6.16 J 17.4 9.34 J 4.34 J NDug/L 05/13/14 --10 ND 5.58 J ND 57.9 10.5 ND NDug/L 11/17/14 1.40 10 ND ND 1.70 J 10.3 9.85 J ND ND
January 2015 Page 4 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Cobalt ug/L 10/08/96 --2 ND ND ND --------GWPS = 1 ug/L ug/L 10/24/96 ------------------No EPA MCL ug/L 02/18/97 --3 ND ND ND --------ug/L 02/19/97 --3 --------------ug/L 04/24/97 ------------------ug/L 08/28/97 --10 --------------ug/L 08/29/97 --10 ND ND ND --------ug/L 10/09/97 ------------------ug/L 10/30/97 ------------------ug/L 02/23/98 --5 ND ND ND --------ug/L 02/24/98 --5 --------------ug/L 04/20/98 ------------------ug/L 08/24/98 --5 ND ND ND --------ug/L 10/27/98 ------------------ug/L 02/22/99 --5 ND ND ND --------ug/L 04/20/99 ------------------ug/L 08/23/99 --5 ND ND ND --------ug/L 08/24/99 --5 --------------ug/L 01/11/00 --5 --------------ug/L 02/21/00 --5 ND ND ND --------ug/L 02/22/00 --5 --------------ug/L 10/10/00 --10 --------------ug/L 07/12/01 --10 ND ND ND ND ND ND --ug/L 10/24/01 --10 ND ND ND ND ND ND --ug/L 05/28/02 --10 --------------ug/L 11/05/02 --10 --------------ug/L 05/29/03 --10 --------------ug/L 11/05/03 --10 --------------ug/L 05/25/04 --10 --------------ug/L 11/23/04 --10 --------------ug/L 05/16/05 --10 --------------ug/L 11/25/05 --10 --------------ug/L 05/24/06 --10 ------------NDug/L 11/20/06 --10 ------------NDug/L 05/22/07 --10 ND ND ND ND ND ND NDug/L 11/14/07 --10 3.0 J ND ND ND ND ND NDug/L 05/29/08 --10 2.4 J ND ND 3.1 J 2.2 J ND NDug/L 11/17/08 --10 1.5 J ND ND ND ND ND NDug/L 05/27/09 --10 1.1 J 0.7 J ND 0.9 J 1.0 J 0.6 J NDug/L 11/11/09 --10 2.05 J ND ND 1.57 J 1.26 J ND NDug/L 05/26/10 --10 ND ND ND 1.54 J 1.24 J ND NDug/L 11/15/10 --10 ND ND ND 1.19 J ND ND NDug/L 05/09/11 --10 ND ND ND ND 1.22 J ND NDug/L 11/14/11 --10 ND ND ND ND 3.83 J ND NDug/L 05/08/12 --10 1.50 J ND ND ND 8.12 J ND NDug/L 11/05/12 --10 2.93 J 1.13 J ND 1.38 J 8.68 J 1.40 J NDug/L 05/14/13 --10 2.09 J ND ND ND 9.01 J 1.15 J ND
ug/L 11/12/13 --10 1.35 J ND ND 1.22 J 11.9 ND NDug/L 05/13/14 --10 ND ND ND 1.78 J 8.78 J ND NDug/L 11/17/14 1.10 10 1.92 J 1.17 J ND 2.10 J 9.58 J 1.40 J NDCopper ug/L 10/08/96 --10 ND ND ND --------NC 2L = 1000 ug/L ug/L 02/18/97 --50 ND ND ND --------EPA MCL = 1300 ug/L#ug/L 08/29/97 --200 ND ND ND --------ug/L 02/23/98 --5 ND ND ND --------ug/L 08/24/98 --5 ND ND ND --------ug/L 02/22/99 --5 ND ND ND --------ug/L 08/23/99 --5 ND ND ND --------ug/L 02/21/00 --5 ND ND ND --------ug/L 07/12/01 --200 ND ND ND ND ND ND --ug/L 10/24/01 --200 ND ND ND ND ND ND --ug/L 05/28/02 --200 --------------ug/L 11/05/02 --200 --------------ug/L 05/29/03 --200 --------------ug/L 11/05/03 --200 --------------ug/L 05/25/04 --200 --------------ug/L 11/23/04 --200 --------------ug/L 05/16/05 --200 --------------ug/L 11/25/05 --200 --------------ug/L 05/24/06 --200 ------------NDug/L 11/20/06 --200 ------------NDug/L 05/22/07 --10 ND ND ND ND ND 6.00 J NDug/L 11/14/07 --10 0.70 J ND ND ND ND 2.80 J NDug/L 05/29/08 --10 ND ND ND 2.00 B ND 8.10 J 1.00 Jug/L 11/17/08 --10 ND ND ND ND 1.60 J 2.00 J NDug/L 05/27/09 --10 ND ND ND ND 4.66 B 7.31 B 1.47 Jug/L 11/11/09 --10 ND ND ND 2.94 J 3.01 J 2.78 J NDug/L 05/26/10 --10 ND ND ND 3.97 J 3.74 J 3.40 J NDug/L 11/15/10 --10 ND ND ND 2.17 J ND ND NDug/L 05/09/11 --10 ND ND ND ND ND 5.54 J NDug/L 11/14/11 --10 ND ND ND ND 2.65 J 2.99 J NDug/L 05/08/12 --10 ND ND ND 1.80 J ND 6.63 J NDug/L 11/05/12 --10 ND ND ND ND ND 1.99 J NDug/L 05/14/13 --10 ND ND ND 1.90 J ND 8.83 J ND
ug/L 11/12/13 --10 ND ND ND ND 3.28 J 13.7 NDug/L 05/13/14 --10 ND ND ND 3.36 J 1.77 J 13.5 NDug/L 11/17/14 1.60 10 ND ND ND ND ND 29.8 ND
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Lead ug/L 10/08/96 --5 ND ND ND --------NC 2L = 15 ug/L ug/L 02/18/97 --5 ND ND ND --------EPA MCL = 15 ug/L#ug/L 08/29/97 --10 ND ND ND --------ug/L 02/23/98 --5 ND ND ND --------ug/L 08/24/98 --5 ND ND ND --------ug/L 02/22/99 --5 ND ND ND --------ug/L 08/23/99 --5 ND ND ND --------ug/L 02/21/00 --5 ND ND ND --------ug/L 10/10/00 --10 ND ND 11 14 ND ND --ug/L 07/12/01 --10 ND 10 11 44 ND ND --ug/L 10/24/01 --10 ND ND ND ND ND 12 --ug/L 05/28/02 --10 ND ND ND ND ND ND --ug/L 11/05/02 --10 ND ND ND ND ND ND --ug/L 05/29/03 --10 ND ND ND 28 ND ND --ug/L 11/05/03 --10 --------------ug/L 05/25/04 --10 ND ND ND ND ND ND --ug/L 11/23/04 --10 ND ND ND ND ND ND --ug/L 05/16/05 --10 ND ND ND ND ND ND --ug/L 11/25/05 --10 ND ND ND ND ND ND --ug/L 05/24/06 --10 ND ND ND ND ND ND NDug/L 11/20/06 --10 ND ND ND 17 ND ND NDug/L 05/22/07 --10 3.1 J ND 2.8 J ND ND ND NDug/L 11/14/07 --10 ND ND ND ND ND ND NDug/L 05/29/08 --10 ND ND ND ND ND ND NDug/L 11/17/08 --10 ND ND ND 2.5 J ND ND NDug/L 05/27/09 --10 ND ND ND 1.9 J ND ND NDug/L 11/11/09 --10 2.00 J 2.38 J ND 2.79 J 3.46 J ND NDug/L 05/26/10 --10 ND 2.85 J ND 5.26 J ND ND NDug/L 11/15/10 --10 ND 2.64 J ND 4.19 J 3.63 J ND NDug/L 05/09/11 --10 ND 3.24 J ND ND 2.92 J ND NDug/L 11/14/11 --10 ND ND ND ND 3.89 J ND NDug/L 05/08/12 --10 ND ND ND ND 4.65 J ND NDug/L 11/05/12 --10 2.69 J ND 2.41 J ND 3.20 J ND NDug/L 05/14/13 --10 ND ND ND 2.69 J ND ND ND
ug/L 11/12/13 --10 ND ND ND ND ND ND NDug/L 05/13/14 --10 ND ND ND 3.10 J ND ND NDug/L 11/17/14 2.10 10 ND ND ND ND 2.82 J 3.62 J NDMercuryug/L 10/10/00 --1 ND ND ND ND ND ND --NC 2L = 1 ug/L ug/L 07/12/01 ------------------EPA MCL = 2 ug/L ug/L 10/24/01 ------------------ug/L 05/28/02 --1 ND ND ND ND ND ND --ug/L 11/05/02 ----ND ND ND ND ND ND --ug/L 05/29/03 --1 ND ND ND ND ND ND --ug/L 11/05/03 ------------------ug/L 05/25/04 --0.5 ND ND ND ND ND ND --ug/L 11/23/04 --1 ND ND ND ND ND ND --ug/L 05/16/05 --0.5 ND ND ND ND ND ND --ug/L 11/25/05 --1 ND ND ND ND ND ND --ug/L 05/24/06 --1 ND ND ND ND ND ND NDug/L 11/20/06 ----ND ND ND ND ND ND NDug/L 05/22/07 --0.2 ND ND ND ND ----NDug/L 11/14/07 --0.2 ND ND ND ND ND ND 0.16 Jug/L 05/29/08 --0.2 ND ND ND ND ND ND NDug/L 11/17/08 --0.2 ND ND ND ND ND ND NDug/L 05/27/09 --0.2 ND ND ND ND ND ND NDug/L 11/11/09 --0.2 ND ND ND ND ND ND NDug/L 05/26/10 --0.2 ND ND ND ND ND ND NDug/L 11/15/10 --0.2 ND ND ND ND ND ND NDug/L 05/09/11 --0.2 ND ND ND ND ND ND NDug/L 11/14/11 --0.2 0.264 ND ND ND ND ND NDug/L 05/08/12 --0.2 ND ND ND ND ND ND NDug/L 11/05/12 --0.2 ND ND ND ND ND ND NDug/L 05/14/13 --0.2 ND ND ND ND ND ND ND
ug/L 11/12/13 --0.2 ND ND ND ND ND ND NDug/L 05/13/14 --0.2 ND ND ND ND ND ND NDug/L 11/17/14 0.170 0.2 ND ND ND ND ND ND ND
January 2015 Page 6 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Nickel ug/L 10/08/96 --50 ND ND ND --------NC 2L = 100 ug/L ug/L 02/18/97 --50 ND ND ND --------No EPA MCL ug/L 08/29/97 --50 ND ND ND --------ug/L 02/23/98 --5 ND ND ND --------ug/L 08/24/98 --5 ND ND ND --------ug/L 02/22/99 --5 ND ND ND --------ug/L 08/23/99 --5 ND ND ND --------ug/L 02/21/00 --5 ND ND ND --------ug/L 07/12/01 --50 ND ND ND ND ND ND --ug/L 10/24/01 --50 ND ND ND ND ND ND --ug/L 05/28/02 --50 --------------ug/L 11/05/02 --50 --------------ug/L 05/29/03 --50 --------------ug/L 11/05/03 --50 --------------ug/L 05/25/04 --50 --------------ug/L 11/23/04 --50 --------------ug/L 05/16/05 --50 --------------ug/L 11/25/05 --50 --------------ug/L 05/24/06 --50 ------------NDug/L 11/20/06 --50 ------------NDug/L 05/22/07 --50 2.7 J ND ND 37.5 J ND ND NDug/L 11/14/07 --50 ND ND ND 10.4 J 2.1 J ND NDug/L 05/29/08 --50 2.8 J ND ND 4.8 J 2.6 J ND NDug/L 11/17/08 --50 2.8 B 1.9 B ND 6.3 B 2.5 B ND 3.2 Jug/L 05/27/09 --50 1.6 B 0.8 B 0.9 B 5.6 J 2.6 B 1.2 B 0.7 Jug/L 11/11/09 --50 ND 16.7 J ND 25.5 J 4.41 J ND NDug/L 05/26/10 --50 ND 2.40 J ND 4.82 J 2.69 J ND NDug/L 11/15/10 --50 ND 1.96 J ND 6.51 J ND ND NDug/L 05/09/11 --50 ND ND ND 4.28 J 2.97 J ND NDug/L 11/14/11 --50 ND ND ND 2.85 J 7.01 J ND NDug/L 05/08/12 --50 2.46 J ND ND 8.28 J 7.92 J ND NDug/L 11/05/12 --50 13.0 J ND ND 12.3 J 6.85 J ND NDug/L 05/14/13 --50 3.45 J 1.80 J 2.81 J 15.4 J 5.87 J ND ND
ug/L 11/12/13 --50 ND ND 2.23 J 11.1 J 5.69 J ND NDug/L 05/13/14 --50 ND 2.81 J ND 36.5 J 5.43 J ND NDug/L 11/17/14 1.80 50 ND ND ND 8.35 J 6.28 J ND NDSeleniumug/L 10/08/96 --5 ND ND ND --------NC 2L = 20 ug/L ug/L 10/24/96 --20 --------------EPA MCL = 50 ug/L ug/L 02/18/97 --5 ND ND ND --------ug/L 02/19/97 --5 --------------ug/L 04/24/97 --20 --------------ug/L 08/28/97 --20 --------------ug/L 08/29/97 --20 ND ND ND --------ug/L 10/09/97 --20 --------------ug/L 10/30/97 ------------------ug/L 02/23/98 --5 ND ND ND --------ug/L 02/24/98 --5 --------------ug/L 04/20/98 --20 --------------ug/L 08/24/98 --5 ND ND ND --------ug/L 10/27/98 --20 --------------ug/L 02/22/99 --5 ND ND ND --------ug/L 04/20/99 --20 --------------ug/L 08/23/99 --5 ND ND ND --------ug/L 08/24/99 --5 --------------ug/L 01/11/00 --5 --------------ug/L 02/21/00 --5 ND ND ND --------ug/L 02/22/00 --5 --------------ug/L 10/10/00 --20 ND ND ND ND ND ND --ug/L 07/12/01 --20 ND ND ND ND ND ND --ug/L 10/24/01 --20 ND ND ND ND ND ND --ug/L 05/28/02 --20 ND ND ND ND ND ND --ug/L 11/05/02 --20 ND ND ND ND ND ND --ug/L 05/29/03 --20 ND ND ND ND ND ND --ug/L 11/05/03 --20 --------------ug/L 05/25/04 --20 ND ND ND ND ND ND --ug/L 11/23/04 --20 ND ND ND ND ND ND --ug/L 05/16/05 --20 ND ND ND ND ND ND --ug/L 11/25/05 --20 ND ND ND ND ND ND --ug/L 05/24/06 --20 ND ND ND ND ND ND NDug/L 11/20/06 --20 ND ND ND ND ND ND NDug/L 05/22/07 --10 ND ND ND ND ND ND NDug/L 11/14/07 --10 ND ND ND 2.0 B ND ND 3.1 Jug/L 05/29/08 --10 ND ND ND ND ND ND 2.1 Jug/L 11/17/08 --10 ND ND ND ND ND ND NDug/L 05/27/09 --10 ND ND ND ND ND ND NDug/L 11/11/09 --10 ND ND ND ND ND ND 3.41 Jug/L 05/26/10 --10 ND ND ND ND ND ND 3.71 Jug/L 11/15/10 --10 ND ND ND ND ND ND NDug/L 05/09/11 --10 ND ND ND ND ND ND NDug/L 11/14/11 --10 ND ND ND ND ND ND NDug/L 05/08/12 --10 ND ND ND ND ND 6.46 J (ND)4.01 Jug/L 11/05/12 --10 ND ND ND ND ND ND NDug/L 05/14/13 --10 ND ND ND ND ND ND ND
ug/L 11/12/13 --10 ND ND ND ND ND ND NDug/L 05/13/14 --10 ND ND ND ND ND ND NDug/L 11/17/14 5.00 10 ND ND ND ND ND ND ND
January 2015 Page 7 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Silver ug/L 10/08/96 --5 ND ND ND --------NC 2L = 20 ug/L ug/L 10/24/96 --10 --------------EPA MCL = 100 ug/L ug/L 02/18/97 --5 ND ND ND --------ug/L 02/19/97 --5 --------------ug/L 04/24/97 --10 --------------ug/L 08/28/97 --10 --------------ug/L 08/29/97 --10 ND ND ND --------ug/L 10/09/97 --10 --------------ug/L 10/30/97 ------------------ug/L 02/23/98 --5 ND ND ND --------ug/L 02/24/98 --5 --------------ug/L 04/20/98 --10 --------------ug/L 08/24/98 --5 ND ND ND --------ug/L 10/27/98 --10 --------------ug/L 02/22/99 --5 ND ND ND --------ug/L 04/20/99 --10 --------------ug/L 08/23/99 --5 ND ND ND --------ug/L 08/24/99 --5 --------------ug/L 01/11/00 --5 --------------ug/L 02/21/00 --5 ND ND ND --------ug/L 02/22/00 ------------------ug/L 10/10/00 --10 ND ND ND ND ND ND --ug/L 07/12/01 --10 ND ND ND ND ND ND --ug/L 10/24/01 --10 ND ND ND ND ND ND --ug/L 05/28/02 --10 ND ND ND ND ND ND --ug/L 11/05/02 --10 ND ND ND ND ND ND --ug/L 05/29/03 --10 ND ND ND ND ND ND --ug/L 11/05/03 --10 --------------ug/L 05/25/04 --10 ND ND ND ND ND ND --ug/L 11/23/04 --10 ND ND ND ND ND ND --ug/L 05/16/05 --10 ND ND ND ND ND ND --ug/L 11/25/05 --10 ND ND ND ND ND ND --ug/L 05/24/06 --10 ND ND ND ND ND ND NDug/L 11/20/06 --10 ND ND ND ND ND ND NDug/L 05/22/07 --10 ND ND ND ND ND ND NDug/L 11/14/07 --10 ND ND ND ND ND ND NDug/L 05/29/08 --10 ND ND ND 3.0 B ND ND 2.9 Jug/L 11/17/08 --10 ND ND ND ND ND ND NDug/L 05/27/09 --10 ND ND ND ND ND ND NDug/L 11/11/09 --10 ND ND ND ND ND ND NDug/L 05/26/10 --10 ND ND ND ND ND ND NDug/L 11/15/10 --10 ND ND 1.93 J ND ND ND NDug/L 05/09/11 --10 ND ND ND ND ND ND NDug/L 11/14/11 --10 ND ND ND ND ND ND NDug/L 05/08/12 --10 ND ND ND ND ND ND NDug/L 11/05/12 --10 ND ND ND ND ND ND NDug/L 05/14/13 --10 ND ND ND ND ND ND ND
ug/L 11/12/13 --10 ND ND ND ND ND ND NDug/L 05/13/14 --10 ND ND ND 31.5 (ND)ND ND NDug/L 11/17/14 1.90 10 ND ND ND ND ND ND NDThallium ug/L 10/08/96 --1 ND ND ND --------GWPS= 0.28 ug/L ug/L 10/24/96 ------------------EPA MCL = 2 ug/L ug/L 02/18/97 --1 ND ND ND --------ug/L 02/19/97 --1 --------------ug/L 04/24/97 ------------------ug/L 08/28/97 --10 --------------ug/L 08/29/97 --10 ND ND ND --------ug/L 10/09/97 ------------------ug/L 10/30/97 ------------------ug/L 02/23/98 --10 ND ND ND --------ug/L 02/24/98 --10 --------------ug/L 04/20/98 ------------------ug/L 08/24/98 --10 ND ND ND --------ug/L 10/27/98 ------------------ug/L 02/22/99 --10 ND ND ND --------ug/L 04/20/99 ------------------ug/L 08/23/99 --10 ND ND ND --------ug/L 08/24/99 --10 --------------ug/L 01/11/00 --10 --------------ug/L 02/21/00 --10 ND ND ND --------ug/L 02/22/00 --10 --------------ug/L 10/10/00 --10 --------------ug/L 07/12/01 --10 ND ND ND ND ND ND --ug/L 10/24/01 --10 ND ND ND ND ND ND --ug/L 05/28/02 --10 --------------ug/L 11/05/02 ------------------ug/L 05/29/03 --10 --------------ug/L 11/05/03 --10 --------------ug/L 05/25/04 --10 --------------ug/L 11/23/04 --10 --------------ug/L 05/16/05 --10 --------------ug/L 11/25/05 --10 --------------ug/L 05/24/06 --10 ------------NDug/L 11/20/06 --10 ------------NDug/L 05/22/07 --5.5 ND ND ND ND ND ND NDug/L 11/14/07 --5.5 0.077 J ND ND ND ND ND NDug/L 05/29/08 --5.5 ND ND ND ND ND ND NDug/L 11/17/08 --5.5 ND ND ND 0.041 J ND ND NDug/L 05/27/09 --5.5 ND ND ND ND ND ND NDug/L 11/11/09 --5.5 ND ND ND ND ND 4.78 J NDug/L 05/26/10 --5.5 ND ND ND ND ND ND NDug/L 11/15/10 --5.5 ND ND ND ND ND ND NDug/L 05/09/11 --5.5 ND ND ND ND ND ND NDug/L 11/14/11 --5.5 ND ND ND ND ND ND NDug/L 05/08/12 --5.5 ND ND 0.253 J ND ND ND NDug/L 11/05/12 --5.5 ND ND ND ND ND ND NDug/L 05/14/13 --5.5 ND ND ND ND ND ND NDug/L 11/12/13 --5.5 ND ND ND ND ND ND NDug/L 05/13/14 --5.5 ND ND ND ND ND ND NDug/L 11/17/14 0.110 5.5 ND 0.116 J ND ND ND ND ND
January 2015 Page 8 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Vanadium ug/L 10/08/96 --5 ND ND ND --------SWS GPS = 0.3 ug/L ug/L 02/18/97 --5 ND ND ND --------No EPA MCL ug/L 08/29/97 --40 ND ND ND --------ug/L 02/23/98 --5 ND ND ND --------ug/L 08/24/98 --5 ND ND 6.06 --------ug/L 02/22/99 --5 ND ND ND --------ug/L 08/23/99 --5 ND ND ND --------ug/L 02/21/00 --5 ND ND ND --------ug/L 07/12/01 --40 ND ND ND ND ND ND --ug/L 10/24/01 --40 ND ND ND ND ND ND --ug/L 05/28/02 --40 --------------ug/L 11/05/02 --40 --------------ug/L 05/29/03 --40 --------------ug/L 11/05/03 --40 --------------ug/L 05/25/04 --40 --------------ug/L 11/23/04 --40 --------------ug/L 05/16/05 --40 --------------ug/L 11/25/05 --40 --------------ug/L 05/24/06 --40 ------------NDug/L 11/20/06 --40 ------------NDug/L 05/22/07 --25 ND ND ND 2.6 J ND ND NDug/L 11/14/07 --25 ND ND ND 1.6 J ND ND NDug/L 05/29/08 --25 ND ND ND 5.4 B 1.7 B 1.0 B 1.2 Jug/L 11/17/08 --25 ND ND ND 14.4 J 1.6 J ND NDug/L 05/27/09 --25 ND 1.0 J 0.9 J 5.8 J 0.8 J ND NDug/L 11/11/09 --25 ND 4.26 J ND 6.65 J 3.41 J ND NDug/L 05/26/10 --25 ND ND 3.17 J 18.7 J 3.27 J ND NDug/L 11/15/10 --25 ND 3.56 J ND 6.05 J 1.78 J ND NDug/L 05/09/11 --25 ND ND ND ND ND ND NDug/L 11/14/11 --25 ND ND ND ND 5.92 J ND NDug/L 05/08/12 --25 ND ND ND 3.84 J 4.24 J ND NDug/L 11/05/12 --25 6.85 J ND ND ND 3.33 J ND NDug/L 05/14/13 --25 ND ND ND 7.66 J ND ND NDug/L 11/12/13 --25 ND ND ND ND ND ND NDug/L 05/13/14 --25 ND 3.02 J ND 8.66 J 3.76 J ND NDug/L 11/17/14 1.40 25 ND ND ND ND 3.82 J ND NDZinc ug/L 10/08/96 ----24 18 30.5 --------NC 2L = 1000 ug/L ug/L 02/18/97 --10 ND ND ND --------EPA MCL = 5000 ug/L*ug/L 08/29/97 --50 ND ND ND --------ug/L 02/23/98 --5 ND ND 6.27 --------ug/L 08/24/98 --5 ND ND ND --------ug/L 02/22/99 --5 ND ND ND --------ug/L 08/23/99 --5 ND ND ND --------ug/L 02/21/00 --5 ND 7.39 ND --------ug/L 07/12/01 --50 ND ND ND 413 ND ND --ug/L 10/24/01 --20 ND ND ND ND ND 21 --ug/L 05/28/02 --50 --------------ug/L 11/05/02 --50 --------------ug/L 05/29/03 --50 --------------ug/L 11/05/03 --50 --------------ug/L 05/25/04 --50 --------------ug/L 11/23/04 --50 --------------ug/L 05/16/05 --50 --------------ug/L 11/25/05 --50 --------------ug/L 05/24/06 --50 ------------NDug/L 11/20/06 --50 ------------NDug/L 05/22/07 --10 2.1 J 2.7 J 1.1 J 5.6 J 1.1 J 2.7 J NDug/L 11/14/07 --10 2.5 J 3.1 J ND 3.1 J 1.4 J 3.7 J NDug/L 05/29/08 --10 2.0 B 4.8 B ND 4.3 B 1.6 B 3.9 B 1.8 Jug/L 11/17/08 --10 ND ND ND 13.5 B ND 3.9 B 4.6 Jug/L 05/27/09 --10 ND 6.0 J ND 6.4 J 7.4 J 9.4 J NDug/L 11/11/09 --10 ND 7.45 J ND 4.86 J ND ND NDug/L 05/26/10 --10 ND 6.82 J ND 6.41 J ND 6.28 J NDug/L 11/15/10 --10 ND ND ND 4.64 J ND ND NDug/L 05/09/11 --10 ND 6.43 J ND ND ND ND NDug/L 11/14/11 --10 ND ND ND ND 3.85 J ND NDug/L 05/08/12 --10 ND ND ND ND ND ND NDug/L 11/05/12 --10 ND ND 4.21 J ND ND ND NDug/L 05/14/13 --10 ND 5.08 J ND ND ND ND NDug/L 11/12/13 --10 ND 4.47 J 5.26 J 4.80 J 4.14 J 7.92 J NDug/L 05/13/14 --10 ND 4.60 J ND ND ND ND NDug/L 11/17/14 3.80 10 ND ND ND 12.4 ND 4.26 J ND
January 2015 Page 9 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Iron ug/L 10/08/96 --50 ND 1600 2600 --------NC 2L = 300 ug/L ug/L 02/18/97 --50 ND 4600 1100 --------EPA MCL = 300 ug/L*ug/L 08/29/97 --50 ND 54500 2300 --------ug/L 02/23/98 --50 ND 53100 5380 --------ug/L 08/24/98 --50 ND 79200 56000 --------ug/L 02/22/99 --50 ND 63300 83600 --------ug/L 08/23/99 --50 311 76400 68600 --------ug/L 02/21/00 --50 ND 73300 61400 --------ug/L 10/10/00 ------------------ug/L 07/12/01 ------------------ug/L 10/24/01 ------------------ug/L 05/28/02 ------------------ug/L 11/05/02 ------------------ug/L 05/29/03 ------------------ug/L 11/05/03 ------------------ug/L 05/25/04 ------------------ug/L 11/23/04 ------------------ug/L 05/16/05 ------------------ug/L 11/25/05 ------------------ug/L 05/24/06 ------------------ug/L 11/20/06 ------------------ug/L 05/22/07 --300 47 J 45900 39000 2020 ----NDug/L 11/14/07 --300 154 J 23700 1430 961 77 B 637 20 Jug/L 05/29/08 --300 33 J 31200 32600 1590 333 702 NDug/L 11/17/08 --300 31 J 22900 25000 6920 1130 600 NDug/L 05/27/09 --300 ND 35300 28200 1950 251 J 660 NDug/L 11/11/09 --300 ND 17700 7120 2780 1280 533 NDug/L 05/26/10 --300 ND 39600 34500 8530 1730 494 NDug/L 11/15/10 --300 ND 35600 11300 2070 417 531 26.2 Jug/L 05/09/11 --300 ND 34400 22000 133 J 323 640 NDug/L 11/14/11 --300 46.8 J 15600 4840 124 J 1960 575 NDmg/L 05/08/12 --300 132 J 18200 4330 1540 1480 604 NDug/L 11/05/12 --300 3540 21900 19100 472 1390 455 NDug/L 05/14/13 --300 275 J 13200 87.2 J 2880 245 J 508 NDug/L 11/12/13 --300 628 18200 7460 295 J 526 556 NDug/L 05/13/14 --300 ND 15900 12400 3110 1350 577 NDug/L 11/17/14 22.0 300 46.8 J 9570 1980 244 J 1080 2160 NDManganeseug/L 10/08/96 --10 ND ND 15 --------NC 2L = 50 ug/L ug/L 02/18/97 --10 ND 32 11 --------EPA MCL = 50 ug/L*ug/L 08/29/97 --30 ND 118 ND --------ug/L 02/23/98 --10 ND 194 81.4 --------ug/L 08/24/98 --23.3 ND 274 508 --------ug/L 02/22/99 --10 ND 247 585 --------ug/L 08/23/99 --10 13.3 327 501 --------ug/L 02/21/00 --10 ND 381 528 --------ug/L 02/22/00 ------------ ------ug/L 10/10/00 ------------------ug/L 07/12/01 ------------------ug/L 10/24/01 ------------------ug/L 05/28/02 ------------------ug/L 11/05/02 ------------------ug/L 05/29/03 ------------------ug/L 11/05/03 ------------------ug/L 05/25/04 ------------------ug/L 11/23/04 ------------------ug/L 05/16/05 ------------------ug/L 11/25/05 ------------------ug/L 05/24/06 ------------------ug/L 11/20/06 ------------------ug/L 05/22/07 --50 15.0 J 274 371 21.9 J ----NDug/L 11/14/07 --50 14.9 J 212 29.4 J 23.1 J 69.2 23.2 J NDug/L 05/29/08 --50 20.6 J 205 308 17.5 J 50.3 32.7 J NDug/L 11/17/08 --50 15.4 J 228 410 17.3 J 12.3 J 24.4 J NDug/L 05/27/09 --50 10.4 J 204 391 15.7 J 33.7 J 32.6 J NDug/L 11/11/09 --50 10.5 J 182 103 20.6 J 66.6 28.5 J NDug/L 05/26/10 --50 12.5 J 218 315 14.2 J 12.9 J 23.2 J NDug/L 11/15/10 --50 11.1 J 175 289 21.1 J 30.2 J 21.7 J NDug/L 05/09/11 --50 17.1 J 210 323 14.8 J 47.7 J 26.4 J NDug/L 11/14/11 --50 20.7 J 158 99.1 9.81 J 62.1 23.5 J NDmg/L 05/08/12 --50 16.8 J 112 132 11.6 J 61.8 24.5 J NDug/L 11/05/12 --50 21.1 J 137 180 13.1 J 69.3 21.2 J NDug/L 05/14/13 --50 19.0 J 113 26.0 J 9.35 J 33.6 J 20.7 J NDug/L 11/12/13 --50 20.0 J 112 235 10.9 J 49.0 J 18.5 J NDug/L 05/13/14 --50 25.2 J 162 231 13.5 J 24.7 J 18.9 J NDug/L 11/17/14 1.10 50 27.5 J 98.3 66.5 26.2 J 56.5 22.3 J ND
January 2015 Page 10 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Acetone ug/L 10/08/96 --100 ND ND ND --------NC 2L = 6000 ug/L ug/L 02/18/97 --100 ND ND ND --------No EPA MCL ug/L 08/29/97 --10 ND ND ND --------ug/L 10/30/97 ------25.2 ----------ug/L 02/23/98 --10 ND ND 11.4 --------ug/L 08/24/98 ----1080 3860 521 --------ug/L 02/22/99 --10 ND ND ND --------ug/L 08/23/99 --5 ND ND 5.56 --------ug/L 02/21/00 --10 ND 13.5 17.7 --------ug/L 10/10/00 --100 ND ND ND ND ND ND --ug/L 07/12/01 --100 ND ND ND ND ND ND --ug/L 10/24/01 --100 ND ND ND ND ND ND --ug/L 05/28/02 --100 ND ND ND ND ND ND --ug/L 11/05/02 --100 ND ND ND ND ND ND --ug/L 05/29/03 --100 ND ND ND ND ND ND --ug/L 11/05/03 --100 ND ND ND ND ND ND --ug/L 05/25/04 --100 ND ND ND ND ND ND --ug/L 11/23/04 --100 ND ND ND ND ND ND --ug/L 05/16/05 --100 ND ND ND ND ND ND --ug/L 11/25/05 --100 ND ND ND ND ND ND --ug/L 05/24/06 --100 ND ND ND ND ND ND NDug/L 11/20/06 --100 ND ND ND ND ND ND NDug/L 05/22/07 --100 ND 4.8 B 3.6 B 6.1 B ND ND 6.6 Jug/L 11/14/07 --100 ND ND ND ND ND ND NDug/L 05/29/08 --100 2.2 B ND ND ND ND ND 2.9 Jug/L 11/17/08 --100 ND ND ND ND ND ND 9.8 Jug/L 05/27/09 --100 ND ND ND ND ND ND NDug/L 11/11/09 --100 ND ND ND ND ND ND NDug/L 05/26/10 --100 ND ND ND ND ND ND NDug/L 11/15/10 --100 ND ND ND ND ND ND 9.2 Jug/L 05/09/11 --100 ND ND ND ND ND ND NDug/L 11/14/11 --100 ND ND ND ND ND ND NDug/L 05/08/12 --100 ND ND ND ND ND ND NDug/L 11/05/12 --100 ND ND ND ND ND ND NDug/L 05/14/13 --100 ND ND ND ND ND ND ND
ug/L 11/12/13 --100 ND ND ND ND ND ND NDug/L 05/13/14 --100 ND ND ND ND ND ND NDug/L 11/17/14 1.20 100 ND ND ND ND ND ND NDBenzeneug/L 10/08/96 ----ND ND ND --------NC 2L = 1 ug/L ug/L 10/24/96 ------------------EPA MCL = 5 ug/L ug/L 02/18/97 ----ND ND ND --------ug/L 02/19/97 ------------------ug/L 04/24/97 ------------------ug/L 08/28/97 ------------------ug/L 08/29/97 ----ND ND ND --------ug/L 10/09/97 ------------------ug/L 10/30/97 ------ND ----------ug/L 02/23/98 ----ND ND ND --------ug/L 02/24/98 ------------------ug/L 04/20/98 ------------------ug/L 08/24/98 ----ND ND ND --------ug/L 10/27/98 ------------------ug/L 02/22/99 ----ND ND ND --------ug/L 04/20/99 ------------------ug/L 08/23/99 ----ND ND ND --------ug/L 08/24/99 ------------------ug/L 01/11/00 ------------------ug/L 02/21/00 ----ND ND ND --------ug/L 02/22/00 ------------------ug/L 10/10/00 ----ND ND ND ND ND ND --ug/L 07/12/01 ----ND ND ND ND ND ND --ug/L 10/24/01 ----ND ND ND ND ND ND --ug/L 05/28/02 ----ND ND ND ND ND ND --ug/L 11/05/02 ----ND ND ND ND ND ND --ug/L 05/29/03 ----ND ND ND ND ND ND --ug/L 11/05/03 ----ND ND ND ND ND ND --ug/L 05/25/04 ----ND ND ND ND ND ND --ug/L 11/23/04 ----ND ND ND ND ND ND --ug/L 05/16/05 ----ND ND ND ND ND ND --ug/L 11/25/05 ----ND ND ND ND ND ND --ug/L 05/24/06 --5 ND ND ND ND ND ND NDug/L 11/20/06 --5 ND ND ND ND ND ND NDug/L 05/22/07 --1 ND ND ND ND ND ND NDug/L 11/14/07 --1 ND ND ND ND ND ND NDug/L 05/29/08 --1 ND ND ND ND ND ND NDug/L 11/17/08 --1 ND ND ND ND ND ND NDug/L 05/27/09 --1 ND ND ND ND ND ND NDug/L 11/11/09 --1 ND 0.77 J 0.72 J ND ND ND NDug/L 05/26/10 --1 ND ND ND ND ND ND NDug/L 11/15/10 --1 ND ND ND ND ND ND NDug/L 05/09/11 --1 ND ND ND ND ND ND NDug/L 11/14/11 --1 ND ND ND ND ND ND NDug/L 05/08/12 --1 ND ND ND ND ND ND NDug/L 11/05/12 --1 ND ND ND ND ND ND NDug/L 05/14/13 --1 ND ND ND ND ND ND ND
ug/L 11/12/13 --1 ND ND ND ND ND ND NDug/L 05/13/14 --1 ND ND ND ND ND ND NDug/L 11/17/14 0.15 1 ND ND ND ND ND ND ND
January 2015 Page 11 of 16 Project No. 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Tables\Sampson County Active MSW Landfill Nov 2014.xlsx
MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Chloroethane ug/L 10/08/96 --10 ND ND ND --------NC 2L = 3000 ug/L ug/L 02/18/97 --10 ND ND ND --------No EPA MCL ug/L 08/29/97 --2 ND ND ND --------ug/L 10/30/97 --2 --ND ----------ug/L 02/23/98 --2 ND ND ND --------ug/L 08/24/98 --1 ND 1.47 1.36 --------ug/L 02/22/99 --2 ND ND 2.17 --------ug/L 08/23/99 --1 ND 1.93 1.2 --------ug/L 02/21/00 --2 ND ND ND --------ug/L 10/10/00 --10 ND ND ND ND ND ND --ug/L 07/12/01 --10 ND ND ND ND ND ND --ug/L 10/24/01 --10 ND ND ND ND ND ND --ug/L 05/28/02 --10 ND ND ND ND ND ND --ug/L 11/05/02 --10 ND ND ND ND ND ND --ug/L 05/29/03 --10 ND ND ND ND ND ND --ug/L 11/05/03 --10 ND ND ND ND ND ND --ug/L 05/25/04 --10 ND ND ND ND ND ND --ug/L 11/23/04 --10 ND ND ND ND ND ND --ug/L 05/16/05 --10 ND ND ND ND ND ND --ug/L 11/25/05 --10 ND ND ND ND ND ND --ug/L 05/24/06 --10 ND ND ND ND ND ND NDug/L 11/20/06 --10 ND ND ND ND ND ND NDug/L 05/22/07 --10 ND ND ND ND ND ND NDug/L 11/14/07 --10 ND ND ND ND ND ND NDug/L 05/29/08 --10 ND ND ND ND ND ND NDug/L 11/17/08 --10 ND ND ND ND ND ND NDug/L 05/27/09 --10 ND ND ND ND ND ND NDug/L 11/11/09 --10 ND ND ND ND ND ND NDug/L 05/26/10 --10 ND ND ND ND ND ND NDug/L 11/15/10 --10 ND ND ND ND ND ND NDug/L 05/09/11 --10 ND ND ND ND ND ND NDug/L 11/14/11 --10 ND ND ND ND ND ND NDug/L 05/08/12 --10 ND ND ND ND ND ND NDug/L 11/05/12 --10 ND ND ND ND ND ND NDug/L 05/14/13 --10 ND ND ND ND ND ND ND
ug/L 11/12/13 --10 ND ND ND ND ND ND NDug/L 05/13/14 --10 ND ND ND ND ND ND NDug/L 11/17/14 0.23 10 ND ND ND ND ND ND NDChloroformug/L 10/08/96 --5 ND ND ND --------NC 2L = 70 ug/L ug/L 02/18/97 --5 ND ND ND --------EPA MCL = 80 ug/L ug/L 08/29/97 --2 ND ND ND --------ug/L 10/30/97 --2 --ND ----------ug/L 02/23/98 --2 ND ND ND --------ug/L 08/24/98 --1 ND ND ND --------ug/L 02/22/99 --2 ND ND ND --------ug/L 08/23/99 --1 ND ND ND --------ug/L 02/21/00 --2 ND ND ND --------ug/L 10/10/00 --5 ND ND ND ND ND ND --ug/L 07/12/01 --5 ND ND ND ND ND ND --ug/L 10/24/01 --5 ND ND ND ND ND ND --ug/L 05/28/02 --5 ND ND ND ND ND ND --ug/L 11/05/02 --5 ND ND ND ND ND ND --ug/L 05/29/03 --5 ND ND ND ND ND ND --ug/L 11/05/03 --5 ND ND ND ND ND 18.4 --ug/L 05/25/04 --5 ND ND ND ND ND ND --ug/L 11/23/04 --5 ND ND ND ND ND ND --ug/L 05/16/05 --5 ND ND ND ND ND ND --ug/L 11/25/05 --5 ND ND ND ND ND ND --ug/L 05/24/06 --5 ND ND ND ND ND ND NDug/L 11/20/06 --5 ND ND ND ND ND ND NDug/L 05/22/07 --5 ND ND ND ND ND ND NDug/L 11/14/07 --5 ND ND ND ND ND ND NDug/L 05/29/08 --5 ND ND ND ND ND ND NDug/L 11/17/08 --5 ND ND ND ND ND ND NDug/L 05/27/09 --5 ND ND ND ND ND ND NDug/L 11/11/09 --5 ND ND ND ND ND ND NDug/L 05/26/10 --5 ND ND ND ND ND ND NDug/L 11/15/10 --5 ND ND ND ND ND ND NDug/L 05/09/11 --5 ND ND ND ND ND ND NDug/L 11/14/11 --5 ND ND ND ND ND ND NDug/L 05/08/12 --5 ND ND ND ND ND ND NDug/L 11/05/12 --5 ND ND ND ND ND ND NDug/L 05/14/13 --5 ND ND ND ND ND ND ND
ug/L 11/12/13 --5 ND ND ND ND ND ND NDug/L 05/13/14 --5 ND ND ND ND ND ND NDug/L 11/17/14 0.18 5 ND ND ND ND ND ND ND
January 2015 Page 12 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
1,2-Dichloropropane ug/L 10/08/96 --5 ND ND ND --------NC 2L = 0.6 ug/L ug/L 02/18/97 --5 ND ND ND --------EPA MCL = 5 ug/L ug/L 08/29/97 --2 ND ND ND --------ug/L 10/30/97 --2 --ND ----------ug/L 02/23/98 --2 ND ND ND --------ug/L 08/24/98 --1 ND 24.1 ND --------ug/L 02/22/99 --2 ND ND ND --------ug/L 08/23/99 --1 ND ND ND --------ug/L 02/21/00 --2 ND ND ND --------ug/L 10/10/00 --5 ND ND ND ND ND ND --ug/L 07/12/01 --5 ND ND ND ND ND ND --ug/L 10/24/01 --5 ND ND ND ND ND ND --ug/L 05/28/02 --5 ND ND ND ND ND ND --ug/L 11/05/02 --5 ND ND ND ND ND ND --ug/L 05/29/03 --5 ND ND ND ND ND ND --ug/L 11/05/03 --5 ND ND ND ND ND ND --ug/L 05/25/04 --5 ND ND ND ND ND ND --ug/L 11/23/04 --5 ND ND ND ND ND ND --ug/L 05/16/05 --5 ND ND ND ND ND ND --ug/L 11/25/05 --5 ND ND ND ND ND ND --ug/L 05/24/06 --5 ND ND ND ND ND ND NDug/L 11/20/06 --5 ND ND ND ND ND ND NDug/L 05/22/07 --1 ND ND ND ND ND ND NDug/L 11/14/07 --1 ND ND ND ND ND ND NDug/L 05/29/08 --1 ND ND ND ND ND ND NDug/L 11/17/08 --1 ND ND ND ND ND ND NDug/L 05/27/09 --1 ND ND ND ND ND ND NDug/L 11/11/09 --1 ND ND ND ND ND ND NDug/L 05/26/10 --1 ND ND ND ND ND ND NDug/L 11/15/10 --1 ND ND ND ND ND ND NDug/L 05/09/11 --1 ND ND ND ND ND ND NDug/L 11/14/11 --1 ND ND ND ND ND ND NDug/L 05/08/12 --1 ND ND ND ND ND ND NDug/L 11/05/12 --1 ND ND ND ND ND ND NDug/L 05/14/13 --1 ND ND ND ND ND ND ND
ug/L 11/12/13 --1 ND ND ND ND ND ND NDug/L 05/13/14 --1 ND ND ND ND ND ND NDug/L 11/17/14 0.10 1 ND ND ND ND ND ND ND2-Butanone ug/L 10/08/96 --100 ND ND ND --------NC 2L = 4000 ug/L ug/L 02/18/97 --100 ND ND ND --------No EPA MCL ug/L 08/29/97 --10 ND 12.5 ND --------ug/L 10/30/97 ------13.5 ----------ug/L 02/23/98 --10 ND ND ND --------ug/L 08/24/98 --5.9 ND ND ND --------ug/L 02/22/99 --10 ND ND ND --------ug/L 08/23/99 --10 ND ND ND --------ug/L 02/21/00 --10 ND ND ND --------ug/L 10/10/00 --100 ND ND ND ND ND ND --ug/L 07/12/01 --100 ND ND ND ND ND ND --ug/L 10/24/01 --100 ND ND ND ND ND ND --ug/L 05/28/02 --100 ND ND ND ND ND ND --ug/L 11/05/02 --100 ND ND ND ND ND ND --ug/L 05/29/03 --100 ND ND ND ND ND ND --ug/L 11/05/03 --100 ND ND ND ND ND ND --ug/L 05/25/04 --100 ND ND ND ND ND ND --ug/L 11/23/04 --100 ND ND ND ND ND ND --ug/L 05/16/05 --100 ND ND ND ND ND ND --ug/L 11/25/05 --100 ND ND ND ND ND ND --ug/L 05/24/06 --100 ND ND ND ND ND ND NDug/L 11/20/06 --100 ND ND ND ND ND ND NDug/L 05/22/07 --100 ND ND ND ND ND ND NDug/L 11/14/07 --100 ND ND ND ND ND ND NDug/L 05/29/08 --100 ND ND ND ND ND ND NDug/L 11/17/08 --100 ND ND ND ND ND ND NDug/L 05/27/09 --100 ND ND ND ND ND ND NDug/L 11/11/09 --100 ND ND ND ND ND ND NDug/L 05/26/10 --100 ND ND ND ND ND ND NDug/L 11/15/10 --100 ND ND ND ND ND ND 6.4 Jug/L 05/09/11 --100 ND ND ND ND ND ND NDug/L 11/14/11 --100 ND ND ND ND ND ND NDug/L 05/08/12 --100 ND ND ND ND ND ND NDug/L 11/05/12 --100 ND ND ND ND ND ND NDug/L 05/14/13 --100 ND ND ND ND ND ND ND
ug/L 11/12/13 --100 ND ND ND ND ND ND NDug/L 05/13/14 --100 ND ND ND ND ND ND NDug/L 11/17/14 1.30 100 ND ND ND ND ND ND ND
January 2015 Page 13 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Tetrachloroethene ug/L 10/08/96 ----ND ND ND --------NC 2L = 0.7 ug/L ug/L 10/24/96 ------------------EPA MCL = 5 ug/L ug/L 02/18/97 ----ND ND ND --------ug/L 02/19/97 ------------------ug/L 04/24/97 ------------------ug/L 08/28/97 ------------------ug/L 08/29/97 ----ND ND ND --------ug/L 10/09/97 ------------------ug/L 10/30/97 ------ND ----------ug/L 02/23/98 ----ND ND ND --------ug/L 02/24/98 ------------------ug/L 04/20/98 ------------------ug/L 08/24/98 ----ND ND ND --------ug/L 10/27/98 ------------------ug/L 02/22/99 ----ND ND ND --------ug/L 04/20/99 ------------------ug/L 08/23/99 ----ND ND ND --------ug/L 08/24/99 ------------------ug/L 01/11/00 ------------------ug/L 02/21/00 ----ND ND ND --------ug/L 02/22/00 ------------------ug/L 10/10/00 ----ND ND ND ND ND ND --ug/L 07/12/01 ----ND ND ND ND ND ND --ug/L 10/24/01 ----ND ND ND ND ND ND --ug/L 05/28/02 ----ND ND ND ND ND ND --ug/L 11/05/02 ----ND ND ND ND ND ND --ug/L 05/29/03 ----ND ND ND ND ND ND --ug/L 11/05/03 ----ND ND ND ND ND ND --ug/L 05/25/04 ----ND ND ND ND ND ND --ug/L 11/23/04 ----ND ND ND ND ND ND --ug/L 05/16/05 ----ND ND ND ND ND ND --ug/L 11/25/05 ----ND ND ND ND ND ND --ug/L 05/24/06 --5 ND ND ND ND ND ND NDug/L 11/20/06 --5 ND ND ND ND ND ND NDug/L 05/22/07 --1 ND ND ND ND ND ND NDug/L 11/14/07 --1 ND ND ND ND ND ND NDug/L 05/29/08 --1 0.53 J ND ND ND ND ND NDug/L 11/17/08 --1 ND ND ND ND ND ND NDug/L 05/27/09 --1 ND ND ND ND ND ND NDug/L 11/11/09 --1 ND ND ND ND ND ND NDug/L 05/26/10 --1 ND ND ND ND ND ND NDug/L 11/15/10 --1 ND ND ND ND ND ND NDug/L 05/09/11 --1 ND ND ND ND ND ND NDug/L 11/14/11 --1 ND ND ND ND ND ND NDug/L 05/08/12 --1 ND ND ND ND ND ND NDug/L 11/05/12 --1 ND ND ND ND ND ND NDug/L 05/14/13 --1 ND ND ND ND ND ND ND
ug/L 11/12/13 --1 ND ND ND ND ND ND NDug/L 05/13/14 --1 ND ND ND ND ND ND NDug/L 11/17/14 0.17 1 ND ND ND ND ND ND NDTolueneug/L 10/08/96 --5 ND ND ND --------NC 2L = 600 ug/L ug/L 02/18/97 --5 ND ND ND --------EPA MCL = 1000 ug/L ug/L 08/29/97 --2 ND 15.1 ND --------ug/L 10/30/97 ------19.9 ----------ug/L 02/23/98 --2 ND 3.76 ND --------ug/L 08/24/98 --1 ND ND 4.21 --------ug/L 02/22/99 --2 ND ND ND --------ug/L 08/23/99 --1 ND ND ND --------ug/L 02/21/00 --2 ND ND ND --------ug/L 10/10/00 --5 ND ND ND ND ND ND --ug/L 07/12/01 --5 ND ND ND ND ND ND --ug/L 10/24/01 --5 ND ND ND ND ND ND --ug/L 05/28/02 --5 ND ND ND ND ND ND --ug/L 11/05/02 --5 ND ND ND ND ND ND --ug/L 05/29/03 --5 ND ND ND ND ND ND --ug/L 11/05/03 --5 ND ND ND ND ND ND --ug/L 05/25/04 --5 ND ND ND ND ND ND --ug/L 11/23/04 --5 ND ND ND ND ND ND --ug/L 05/16/05 --5 ND ND ND ND ND ND --ug/L 11/25/05 --5 ND ND ND ND ND ND --ug/L 05/24/06 --5 ND ND ND ND ND ND NDug/L 11/20/06 --5 ND ND ND ND ND ND NDug/L 05/22/07 --1 ND ND ND ND ND ND NDug/L 11/14/07 --1 ND ND ND ND ND ND NDug/L 05/29/08 --1 ND ND ND ND ND ND NDug/L 11/17/08 --1 ND ND ND ND ND ND NDug/L 05/27/09 --1 ND ND ND ND ND ND NDug/L 11/11/09 --1 ND ND ND ND ND ND NDug/L 05/26/10 --1 ND ND ND ND ND ND NDug/L 11/15/10 --1 ND ND ND ND ND ND NDug/L 05/09/11 --1 ND ND ND ND ND ND NDug/L 11/14/11 --1 ND ND ND ND ND ND NDug/L 05/08/12 --1 ND ND ND ND ND ND NDug/L 11/05/12 --1 ND ND ND ND ND ND NDug/L 05/14/13 --1 ND ND ND ND ND ND ND
ug/L 11/12/13 --1 ND ND ND ND ND ND NDug/L 05/13/14 --1 ND ND ND ND ND ND NDug/L 11/17/14 0.14 1 ND ND ND ND ND ND ND
January 2015 Page 14 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Trichlorofluoromethane ug/L 10/08/96 --5 ND ND ND --------NC 2L = 2000 ug/L ug/L 02/18/97 --5 ND ND ND --------No EPA MCL ug/L 08/29/97 --2 ND ND 2.11 --------ug/L 10/30/97 --2 --ND ----------ug/L 02/23/98 --2 ND ND ND --------ug/L 08/24/98 --1.7 ND ND ND --------ug/L 02/22/99 --10 ND ND ND --------ug/L 08/23/99 --5 ND ND ND --------ug/L 02/21/00 --2 ND ND ND --------ug/L 10/10/00 --5 ND ND ND ND ND ND --ug/L 07/12/01 --5 ND ND ND ND ND ND --ug/L 10/24/01 --5 ND ND ND ND ND ND --ug/L 05/28/02 --5 ND ND ND ND ND ND --ug/L 11/05/02 --5 ND ND ND ND ND ND --ug/L 05/29/03 --5 ND ND ND ND ND ND --ug/L 11/05/03 --5 ND ND ND ND ND ND --ug/L 05/25/04 --5 ND ND ND ND ND ND --ug/L 11/23/04 --5 ND ND ND ND ND ND --ug/L 05/16/05 --5 ND ND ND ND ND ND --ug/L 11/25/05 --5 ND ND ND ND ND ND --ug/L 05/24/06 --5 ND ND ND ND ND ND NDug/L 11/20/06 --5 ND ND ND ND ND ND NDug/L 05/22/07 --1 ND ND ND ND ND ND NDug/L 11/14/07 --1 ND ND ND ND ND ND NDug/L 05/29/08 --1 ND ND ND ND ND ND NDug/L 11/17/08 --1 ND ND ND ND ND ND NDug/L 05/27/09 --1 ND ND ND ND ND ND NDug/L 11/11/09 --1 ND ND ND ND ND ND NDug/L 05/26/10 --1 ND ND ND ND ND ND NDug/L 11/15/10 --1 ND ND ND ND ND ND NDug/L 05/09/11 --1 ND ND ND ND ND ND NDug/L 11/14/11 --1 ND ND ND ND ND ND NDug/L 05/08/12 --1 ND ND ND ND ND ND NDug/L 11/05/12 --1 ND ND ND ND ND ND NDug/L 05/14/13 --1 ND ND ND ND ND ND ND
ug/L 11/12/13 --1 ND ND ND ND ND ND NDug/L 05/13/14 --1 ND ND ND ND ND ND NDug/L 11/17/14 0.24 1 ND ND ND ND ND ND NDVinyl chloride ug/L 10/08/96 --10 ND ND ND --------NC 2L = 0.03 ug/L ug/L 02/18/97 --10 ND ND ND --------EPA MCL = 2 ug/L ug/L 08/29/97 --2 ND ND ND --------ug/L 10/30/97 --2 --ND ----------ug/L 02/23/98 --2 ND ND ND --------ug/L 08/24/98 --1 ND ND ND --------ug/L 02/22/99 --2 ND ND ND --------ug/L 08/23/99 --1 ND 4.75 9.09 --------ug/L 02/21/00 --2 ND ND ND --------ug/L 10/10/00 --10 ND ND ND ND ND ND --ug/L 07/12/01 --10 ND ND ND ND ND ND --ug/L 10/24/01 --10 ND ND ND ND ND ND --ug/L 05/28/02 --10 ND ND ND ND ND ND --ug/L 11/05/02 --10 ND ND ND ND ND ND --ug/L 05/29/03 --10 ND ND ND ND ND ND --ug/L 11/05/03 --10 ND ND ND ND ND ND --ug/L 05/25/04 --10 ND ND ND ND ND ND --ug/L 11/23/04 --10 ND ND ND ND ND ND --ug/L 05/16/05 --10 ND ND ND ND ND ND --ug/L 11/25/05 --10 ND ND ND ND ND ND --ug/L 05/24/06 --10 ND ND ND ND ND ND NDug/L 11/20/06 --10 ND ND ND ND ND ND NDug/L 05/22/07 --1 ND ND ND ND ND ND NDug/L 11/14/07 --1 ND ND ND ND ND ND NDug/L 05/29/08 --1 ND ND ND ND ND ND NDug/L 11/17/08 --1 ND ND ND ND ND ND NDug/L 05/27/09 --1 ND ND ND ND ND ND NDug/L 11/11/09 --1 ND ND ND ND ND ND NDug/L 05/26/10 --1 ND ND ND ND ND ND NDug/L 11/15/10 --1 ND ND ND ND ND ND NDug/L 05/09/11 --1 ND ND ND ND ND ND NDug/L 11/14/11 --1 ND ND ND ND ND ND NDug/L 05/08/12 --1 ND ND ND ND ND ND NDug/L 11/05/12 --1 ND ND ND ND ND ND NDug/L 05/14/13 --1 ND ND ND ND ND ND ND
ug/L 11/12/13 --1 ND ND ND ND ND ND NDug/L 05/13/14 --1 ND ND ND ND ND ND NDug/L 11/17/14 0.32 1 ND ND ND ND ND ND ND
January 2015 Page 15 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Xylenes (Total)ug/L 10/08/96 --5 ND ND ND --------NC 2L = 500 ug/L ug/L 02/18/97 --5 ND ND ND --------EPA MCL = 10000 ug/L ug/L 08/29/97 --4 ND ND ND --------ug/L 10/30/97 --4 --ND ----------ug/L 02/23/98 --4 ND ND ND --------ug/L 08/24/98 --2 ND ND 2.08 --------ug/L 02/22/99 --2 ND ND ND --------ug/L 08/23/99 --2 ND ND ND --------ug/L 02/21/00 --6 ND ND ND --------ug/L 10/10/00 --5 ND ND ND ND ND ND --ug/L 07/12/01 --5 ND ND ND ND ND ND --ug/L 10/24/01 --5 ND ND ND ND ND ND --ug/L 05/28/02 --5 ND ND ND ND ND ND --ug/L 11/05/02 --5 ND ND ND ND ND ND --ug/L 05/29/03 --5 ND ND ND ND ND ND --ug/L 11/05/03 --5 ND ND ND ND ND 5.9 --ug/L 05/25/04 --5 ND ND ND ND ND ND --ug/L 11/23/04 --5 ND ND ND ND ND ND --ug/L 05/16/05 --5 ND ND ND ND ND ND --ug/L 11/25/05 --5 ND ND ND ND ND ND --ug/L 05/24/06 --5 ND ND ND ND ND ND NDug/L 11/20/06 --5 ND ND ND ND ND ND NDug/L 05/22/07 --5 ND ND ND ND ND ND NDug/L 11/14/07 --5 ND ND ND ND ND ND NDug/L 05/29/08 --5 ND ND ND ND ND ND NDug/L 11/17/08 --5 ND ND ND ND ND ND NDug/L 05/27/09 --5 ND ND ND ND ND ND NDug/L 11/11/09 --5 ND ND ND ND ND ND NDug/L 05/26/10 --5 ND ND ND ND ND ND NDug/L 11/15/10 --5 ND ND ND ND ND ND NDug/L 05/09/11 --5 ND ND ND ND ND ND NDug/L 11/14/11 --5 ND ND ND ND ND ND NDug/L 05/08/12 --5 ND ND ND ND ND ND NDug/L 11/05/12 --5 ND ND ND ND ND ND NDug/L 05/14/13 --5 ND ND ND ND ND ND ND
ug/L 11/12/13 --5 ND ND ND ND ND ND NDug/L 05/13/14 --5 ND ND ND ND ND ND NDug/L 11/17/14 0.45 5 ND ND ND ND ND ND NDTetrahydrofuranug/L 05/09/11 ----ND ND 1.2 ND ND ND ND(no standard)ug/L 11/14/11 ----ND ND ND ND ND ND NDNo EPA MCL ug/L 05/08/12 ----ND ND ND ND ND ND NDug/L 11/05/12 ----ND ND ND ND ND ND NDug/L 05/14/13 ----ND ND ND ND ND ND ND
ug/L 11/12/13 ----ND ND ND ND ND ND NDug/L 05/13/14 ----ND ND ND ND ND ND NDug/L 11/17/14 0.80 --ND ND ND ND ND ND NDChloridemg/L 10/08/96 ----2.2 4.2 3.7 --------NC 2L = 250 mg/L mg/L 02/18/97 ----2.4 36 1.7 --------EPA MCL = 250 mg/L mg/L 08/29/97 ----2.03 194 12.4 --------mg/L 02/23/98 ----3.37 186 74.1 --------mg/L 08/24/98 ----3.01 252 271 --------mg/L 02/22/99 ----3.25 212 258 --------mg/L 08/23/99 ----4.49 192 254 --------mg/L 05/22/07 ----11 43 71 0.7 ----NDmg/L 11/14/07 ----10 62 93 20 6.3 3.3 J NDmg/L 05/29/08 ----5.9 B 37 67 5.9 B 3.7 B 2.5 B 1.9 Jmg/L 11/17/08 ----5.1 33 44 7.4 1.2 J 1.8 J NDmg/L 05/27/09 ----7.9 29 42 9.5 4.3 J 3.6 J NDmg/L 11/11/09 ----7.6 31 42 12 5.5 3.7 J NDmg/L 05/26/10 ----6.0 40 43 8.9 3.8 J 3.7 J NDmg/L 11/15/10 ----8.5 B 29 29 13 4.3 B 3.4 B 1.9 Jmg/L 05/09/11 ----26 29 34 9.4 B 4.3 B 3.3 B 1.9 Jmg/L 11/14/11 ----57 27 77 8.6 4.6 B 3.0 B 1.5 Jmg/L 05/08/12 ----43 26 130 7.5 4.3 B 2.9 B 1.2 Jmg/L 11/05/12 ----72 36 140 14 6.1 B 3.1 B 1.4 Jmg/L 05/14/13 ----49 21 160 3.6 3.2 3.1 ND
mg/L 11/12/13 ----37 20 130 12 5.4 3.0 J NDmg/L 05/13/14 ----150 9.1 97 3.3 J 3.0 J 3.1 J NDmg/L 11/17/14 2.2 --79 15 110 43 5.2 3.5 J NDTotal Dissolved Solids mg/L 10/08/96 ----140 130 160 --------NC 2L = 1000 mg/L mg/L 02/18/97 ----10 54 22 --------No EPA MCL mg/L 08/29/97 ----22 403 54 --------mg/L 02/23/98 ----30 452 233 --------mg/L 08/24/98 ----27 638 830 --------mg/L 02/22/99 ----36 563 1120 --------mg/L 08/23/99 ----30 556 1150 --------mg/L 05/22/07 ----28 470 860 120 ----NDmg/L 11/14/07 ----78 570 830 180 62 44 NDmg/L 05/29/08 ----48 430 900 140 40 40 NDmg/L 11/17/08 ----38 390 890 150 32 50 NDmg/L 05/27/09 ----36 370 950 160 50 44 NDmg/L 11/11/09 ----52 360 870 160 62 18 NDmg/L 05/26/10 ----36 530 970 200 58 40 NDmg/L 11/15/10 ----18 370 1000 150 22 18 NDmg/L 05/09/11 ----110 440 940 110 50 50 NDmg/L 11/14/11 ----94 300 830 64 36 30 NDmg/L 05/08/12 ----130 290 1000 56 26 46 NDmg/L 11/05/12 ----130 320 920 48 24 10 NDmg/L 05/14/13 ----200 300 890 140 54 76 ND
mg/L 11/12/13 ----110 300 890 38 46 24 NDmg/L 05/13/14 ----40 170 840 58 22 22 NDmg/L 11/17/14 10.00 --160 250 970 100 24 10 ND
January 2015 Page 16 of 16 Project No. 0739603714.100
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Detected Monitoring Constituent/Parameter Reporting Units Sample Date
TABLE 6
Sampson County, North Carolina
Detected Constituents
Sampson County Active C&D Landfill, Permit No. 82-02
SWS Reporting Limit
Upgradient Downgradient
Summary of Groundwater Monitoring Results for C&D Wells
BlanksMethod Detection Limit
Sulfate mg/L 10/08/96 --1 5.01 --7.8 --------NC 2L = 250 mg/L mg/L 02/18/97 --5 5.9 --9.6 --------No EPA MCL mg/L 08/29/97 --1 14.9 4.4 7.66 --------mg/L 02/23/98 --0.2 74.9 7.24 4.22 --------mg/L 08/24/98 --0.2 46.8 8.16 2.63 --------mg/L 02/22/99 --0.2 43.8 19.3 6.05 --------mg/L 08/23/99 --0.2 3.14 21.7 1.11 --------mg/L 05/22/07 --250 2.9 B 180 50 48 ----2.5 Jmg/L 11/14/07 --250 1.6 J 110 J 110 J 55 J 8.6 J 4.8 J NDmg/L 05/29/08 --250 4.8 J 110 J 100 J 55 J 12 J 6.9 J NDmg/L 11/17/08 --250 5.3 J 100 J 35 J 30 J 6.9 J 8.4 J NDmg/L 05/27/09 --250 5.0 J 100 J 36 J 50 J 10 J 8.6 J NDmg/L 11/11/09 --250 3.3 J 79 J 80 J 53 J 12 J 8.1 J NDmg/L 05/26/10 --250 5.3 J 110 J 79 J 25 J 6.1 J 8.3 J NDmg/L 11/15/10 --250 4.8 J 90 J 54 J 56 J 9.9 J 8.1 J NDmg/L 05/09/11 --250 4.2 J 78 J 49 J 39 J 11 J 7.3 J NDmg/L 11/14/11 --250 4.4 J 57 J 100 J 24 J 11 J 7.7 J NDmg/L 05/08/12 --250 4.6 J 28 J 130 J 20 J 13 J 6.8 J NDmg/L 11/05/12 --250 3.5 J 32 J 130 J 25 J 11 J 8.2 J NDmg/L 05/14/13 --250 5.0 J 43 J 220 J 14 J 9.6 J 7.8 J ND
mg/L 11/12/13 --250 6.4 J 46 J 100 J 14 J 9.1 J 7.0 J NDmg/L 41772.00 --250 8.3 J 43 J 69 J 9.9 J 8.0 J 7.4 J NDmg/L 11/17/14 2.9 250 8.9 J 46 J 76 J 19 J 9.8 J 7.1 J NDAlkalinity mg/L 35346.00 --1.00 --1.00 13.00 --------(no standard)mg/L 02/18/97 --1 1 --3 --------No EPA MCL mg/L 08/28/97 --1 --60.3 ----------mg/L 08/29/97 --1 1.56 --3.64 --------mg/L 02/23/98 --1 --92.7 2.78 --------mg/L 08/24/98 --1 1.5 129 316 --------mg/L 02/22/99 --1 1.99 153 608 --------mg/L 08/23/99 --1 1.89 173 503 --------mg/L 05/22/07 ----3.2 2.3 2.8 ND ----NDmg/L 11/14/07 ----ND 270 440 ND ND ND NDmg/L 05/29/08 ----ND 97 370 ND ND ND NDmg/L 11/17/08 ----2.8 B 150 460 ND 2.7 B ND 6.3 Jmg/L 05/27/09 ----9.6 J 150 580 11 J 12 J 12 J NDmg/L 11/11/09 ----ND 180 440 ND ND ND NDmg/L 05/26/10 ----8.0 J 280 720 9.4 J 8.2 J 12 J NDmg/L 11/15/10 ----ND 220 840 ND ND ND NDmg/L 05/09/11 ----ND 240 650 ND ND 12 NDmg/L 11/14/11 ----ND 250 620 ND ND ND NDmg/L 05/08/12 ----ND 200 550 ND ND ND NDmg/L 11/05/12 ----ND 330 500 ND ND ND NDmg/L 05/14/13 ----ND 150 280 ND ND ND ND
mg/L 11/12/13 ----ND 190 480 ND ND ND NDmg/L 05/13/14 ----ND 86 580 ND ND ND NDmg/L 11/17/14 14.00 --ND 190 680 ND ND ND ND
Notes:mg/L =milligrams per literug/L =micrograms per literND =Not detected at the stated reporting limitJ =Estimated value B =Blank-qualified data# =EPA Action Level* = EPA Secondary MCL-- =no dataBold only =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard Shaded and Bold =Concentration above current NC 2L Groundwater Standard or NC SWS Groundwater Protection Standard and EPA MCLBlanks =field, trip and/or method blanksSWS GPS =Solid Waste Section Groundwater Protection StandardEPA MCL =US Environmental Protection Agency Maximum Contaminant LevelNC 2L = North Carolina 2L Groundwater StandardSWS Reporting Limit =NCPQL or lab-specific reporting limit prior to 2007 and NCSWSL starting on 01/18/071) Data prior to 2/28/07 provided by Richardson, Smith, Gardner and Associates.2) Results from laboratory re-analysis are reported in parentheses.3) The following dilutions were noted for the November 2014 event for MW-3N: Total Alkalinity (5x), Chloride (2x), and Sulfate (2x)
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
pH (field)S.U.10/08/96 5.76 4.82 5.49 ------S.U.02/18/97 4.82 --5.43 ------
S.U.08/28/97 --5.63 --------S.U.08/29/97 5.02 --5.08 ------
S.U.10/09/97 --5.65 --------S.U.10/30/97 --5.50 --------
S.U.02/23/98 4.36 --4.47 ------S.U.04/20/98 --5.52 --------
S.U.08/24/98 4.98 --6.15 ------S.U.10/27/98 --6.10 --------S.U.02/22/99 4.60 --6.51 ------
S.U.04/20/99 --5.88 --------S.U.08/23/99 4.77 --6.46 ------
S.U.05/28/02 --6.10 --------S.U.11/05/02 4.50 5.70 6.60 4.80 4.60 5.60
S.U.05/29/03 4.60 --6.10 5.50 4.90 5.70S.U.05/24/06 4.30 6.10 6.60 4.70 4.40 5.70
S.U.11/20/06 4.20 6.10 6.50 5.90 5.10 5.50S.U.05/22/07 3.76 6.27 6.50 4.74 4.43 5.30S.U.11/14/07 4.01 6.36 6.93 4.46 4.56 5.44
S.U.05/29/08 4.24 6.40 6.73 4.54 4.55 5.60S.U.11/17/08 4.68 6.93 7.29 6.18 5.67 5.01
S.U.05/27/09 4.13 6.37 6.61 4.62 4.73 5.14S.U.11/11/09 3.91 6.17 6.56 4.56 4.48 5.33
S.U.05/26/10 3.94 6.12 6.18 5.43 4.83 4.48S.U.11/15/10 4.35 6.46 6.85 4.59 4.59 5.18S.U.05/09/11 3.41 5.88 6.18 3.82 3.78 4.75
S.U.11/14/11 4.56 6.18 6.63 4.62 4.45 5.15S.U.05/08/12 3.31 5.79 6.42 4.85 4.14 5.04
S.U.11/05/12 4.16 6.37 6.81 4.79 4.45 4.92S.U.05/14/13 4.14 6.37 6.77 6.05 4.47 4.92
S.U.11/12/13 4.46 6.41 6.87 5.18 4.77 5.74S.U.05/13/14 4.35 6.45 6.82 5.84 5.18 5.54
S.U.11/17/14 3.95 5.95 6.65 4.20 4.28 5.11Specific Conductance (field)uS/cm 10/08/96 33 126 55 ------uS/cm 02/18/97 34 --48 ------
uS/cm 08/28/97 --634 --------uS/cm 08/29/97 30 --80 ------
uS/cm 10/09/97 --842 --------uS/cm 10/30/97 --582 --------
uS/cm 02/23/98 42 --181 ------uS/cm 04/20/98 --1098 --------
uS/cm 08/24/98 32.9 --1161 ------uS/cm 10/27/98 --764 --------uS/cm 02/22/99 52.4 --1931 ------
uS/cm 04/20/99 --1052 --------uS/cm 08/23/99 65.7 --1871 ------
uS/cm 05/28/02 --778 --------uS/cm 11/05/02 65 --1241 91 86 44
uS/cm 05/24/06 95 724 1327 53 102 47uS/cm 11/20/06 110 707 1071 51 36 40uS/cm 05/22/07 89 934 1630 178 87 30
uS/cm 11/14/07 175 1000 1340 316 140 60uS/cm 05/29/08 109 761 1570 202 84 45
uS/cm 11/17/08 78 629 1368 125 29 37uS/cm 05/27/09 78 691 1582 193 53 38
uS/cm 11/11/09 118 736 1439 222 84 39uS/cm 05/26/10 70 980 1625 156 44 38
uS/cm 11/15/10 89 809 1684 267 66 43uS/cm 05/09/11 187 894 1848 212 79 44uS/cm 11/14/11 260 731 1554 133 82 40
uS/cm 05/08/12 192 550 1514 115 74 38uS/cm 11/05/12 341 815 1554 142 86 35
uS/cm 05/14/13 262 505 1232 75 45 36uS/cm 11/12/13 266 526 1328 155 126 88
uS/cm 05/13/14 162 343 1467 83 72 68uS/cm 11/17/14 407 561 1723 282 85 46
Upgradient DowngradientDetected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
Sampson County, North Carolina
TABLE 7
Summary of Field Parameters for C&D Wells
Sampson County Active C&D Landfill, Permit No. 82-02
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Upgradient DowngradientDetected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
Sampson County, North Carolina
TABLE 7
Summary of Field Parameters for C&D Wells
Sampson County Active C&D Landfill, Permit No. 82-02
Temperature (field)Celsius 10/08/96 20.80 14.70 21.10 ------Celsius 02/18/97 16.10 --13.60 ------
Celsius 08/28/97 --21.10 --------Celsius 08/29/97 21.10 --21.90 ------
Celsius 10/09/97 --18.80 --------Celsius 10/30/97 --14.80 --------
Celsius 02/23/98 14.60 --14.20 ------Celsius 04/20/98 --22.90 --------
Celsius 08/24/98 22.90 --22.10 ------Celsius 10/27/98 --13.40 --------Celsius 02/22/99 14.80 --14.00 ------
Celsius 04/20/99 --21.10 --------Celsius 08/23/99 20.90 --21.00 ------
Celsius 05/28/02 --18.00 --------Celsius 11/05/02 18.00 18.00 19.00 13.00 22.00 18.00
Celsius 05/29/03 19.00 --18.00 20.00 20.00 19.00Celsius05/24/06 18.00 17.00 17.00 19.00 18.00 19.00
Celsius 11/20/06 20.00 18.00 18.00 17.00 16.00 19.00Celsius05/22/07 19.39 17.29 17.34 20.06 18.10 19.10Celsius11/14/07 21.45 19.87 23.99 24.51 22.96 20.50
Celsius 05/29/08 18.85 17.33 17.39 19.19 18.90 19.18Celsius11/17/08 18.99 17.70 17.98 19.31 18.12 18.95
Celsius 05/27/09 18.78 16.63 17.18 19.09 19.52 19.86Celsius11/11/09 19.74 19.31 18.27 20.01 20.51 19.28
Celsius 05/26/10 18.81 18.41 17.25 21.18 19.56 18.45Celsius11/15/10 20.82 20.39 18.36 21.40 20.54 19.01Celsius05/09/11 19.63 17.35 16.89 19.49 18.28 18.98
Celsius 11/14/11 21.93 20.46 19.46 21.86 21.67 20.87Celsius05/08/12 19.95 18.80 18.54 20.09 20.77 20.82
Celsius 11/05/12 19.40 19.58 18.34 21.78 21.92 19.13Celsius05/14/13 18.87 17.51 17.17 18.64 19.58 19.39
Celsius 11/12/13 21.3 19.9 19.1 22.3 22.7 20.6Celsius05/13/14 19.1 17.6 17.2 20.5 18.8 19.8
Celsius 11/17/14 21.4 19.4 19.0 21.4 22.1 20.1Turbidity (field)NTU 10/08/96 0.94 2.7 4.1 ------NTU 02/18/97 0.47 ----------
NTU 08/28/97 --7.76 8.72 ------NTU 08/29/97 4.17 ----------
NTU 10/09/97 --3.12 --------NTU 10/30/97 --4 2 ------
NTU 02/23/98 2 ----------NTU 04/20/98 --3 2.33 ------
NTU 08/24/98 1.09 ----------NTU 10/27/98 --7.13 1 ------NTU 02/22/99 1 ----------
NTU 04/20/99 --5.01 4.69 ------NTU 08/23/99 10.3 ----------
NTU 05/22/07 13.9 52.2 1.4 9.1 0 0NTU11/14/07 78.5 152 98.1 68.1 59 36.5
NTU 05/29/08 5.4 29.8 29.6 45.2 63 6.6NTU11/17/08 0.34 13.6 5.00 78.0 50.3 0.49NTU05/27/09 2.60 74.5 2.71 46.5 51.7 2.65
NTU 11/11/09 0.59 47.0 13.9 95.2 89.7 0.38NTU05/26/10 0.53 6.79 70.9 99.1 49.0 18.45
NTU 11/15/10 0.48 3.43 4.02 42.1 44.5 0.84NTU05/09/11 0.23 0.49 0.67 8.85 57.8 0.46
NTU 11/14/11 85 2.64 21.5 10.7 90.6 1.04NTU05/08/12 5.51 5.26 15.5 88.0 160 2.95
NTU 11/05/12 26.8 3.42 17.7 23.8 87.7 0.64NTU05/14/13 10.8 9.63 1.16 97.3 18.7 0.68NTU11/12/13 24.1 22.4 2.84 11.5 25.9 1.82
NTU 05/13/14 3.16 88.5 9.01 95.0 49.3 2.06NTU11/17/14 0.50 56.5 18.20 9.5 50.3 2.52
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MW-1N MW-2N MW-3N MW-4N MW-5AN MW-5BN
Upgradient DowngradientDetected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
Sampson County, North Carolina
TABLE 7
Summary of Field Parameters for C&D Wells
Sampson County Active C&D Landfill, Permit No. 82-02
ORP (field)millivolts 05/22/07 428 -80 -151 301 367 140millivolts11/14/07 399 -59 -47 317 300 147
millivolts 05/29/08 382 -68 -127 310 159 106millivolts11/17/08 321.5 21.7 -52.4 295.9 304.3 164.0
millivolts 05/27/09 292.3 -19.3 -39.3 259.9 218.6 157.6millivolts11/11/09 284.5 -34.6 -42.3 233.1 230.4 149.7
millivolts 05/26/10 213.3 -21.1 -45.3 140.7 164.3 169.5millivolts11/15/10 262.9 -39.1 -69.8 279.9 282.8 199.4
millivolts 05/09/11 265.2 -32.3 -37.2 240.8 247.0 161.5millivolts11/14/11 105.4 -15.2 -48.2 167.1 142.2 72.5millivolts05/08/12 253.4 -90.9 -61.4 142.7 200.9 137.3
millivolts 11/05/12 108.0 -14.3 -61.8 116.9 111.8 79.1millivolts05/14/13 102.9 -45.4 21.4 80.1 128.3 106.7
millivolts 11/12/13 382.5 -77.9 -52.0 294.5 347.1 154.3millivolts05/13/14 391.6 0.0 -87.9 174.7 302.3 146.7
millivolts 11/17/14 218.6 13.9 29.9 170.3 162.2 132.0Dissolved Oxygen (field)mg/L 05/22/07 5.10 0.60 0.50 6.10 5.30 2.50
mg/L 11/14/07 1.58 0.72 0.58 6.84 6.80 0.66mg/L 05/29/08 4.83 0.42 0.38 8.56 6.76 4.51mg/L 11/17/08 5.59 1.05 0.87 6.71 8.73 2.19
mg/L 05/27/09 4.57 0.38 0.46 6.28 6.45 1.21mg/L 11/11/09 2.17 0.75 0.88 4.56 6.06 1.30
mg/L 05/26/10 5.59 0.39 0.59 6.30 6.94 0.57mg/L 11/15/10 6.20 1.08 1.52 5.10 6.19 0.47
mg/L 05/09/11 5.67 0.76 0.65 5.59 6.71 0.98mg/L 11/14/11 4.68 0.24 0.26 3.60 4.41 1.52mg/L 05/08/12 6.45 0.90 0.49 6.75 6.17 3.30
mg/L 11/05/12 1.42 0.58 0.28 4.33 5.23 1.12mg/L 05/14/13 2.24 2.86 0.79 7.54 7.35 1.62
mg/L 11/12/13 5.07 0.22 0.67 5.50 6.51 1.18mg/L 05/13/14 8.22 0.19 0.30 7.96 7.25 1.08
mg/L 11/17/14 3.88 0.40 0.15 3.09 5.25 1.22
Notes:mg/L =milligrams per literS.U. =Standard Units
NTU =Nephelometric Turbidity UnitsND =Not detected at the stated reporting limit
uS/cm =microsiemens per centimeter-- =no data
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Antimony ug/L 11/05/03 --dry ----ND
No SW Standard ug/L 05/25/04 30 dry ND --ND
ug/L 05/16/05 30 dry ND --ND
ug/L 11/25/05 30 dry ND --ND
ug/L 05/24/06 30 dry ND --ND
ug/L 11/20/06 30 dry ND --ND
ug/L 05/22/07 6 dry ND --ND
ug/L 11/15/07 6 ND ND dry --
ug/L 05/28/08 6 ND ND ND ND
ug/L 11/17/08 6 dry ND ND ND
ug/L 05/26/09 6 ND ND ND ND
ug/L 11/11/09 6 0.0860 B ND 0.0730 B 0.0770 J
ug/L 05/26/10 6 ND ND ND ND
ug/L 11/15/10 6 ND ND ND ND
ug/L 05/09/11 6 ND ND ND ND
ug/L 11/14/11 6 ND ND ND ND
ug/L 05/08/12 6 ND ND 0.264 J ND
ug/L 11/05/12 6 ND ND ND ND
ug/L 05/13/13 6 ND ND ND ND
ug/L 11/11/13 6 ND ND ND ND
ug/L 05/12/14 6 ND ND ND ND
ug/L 11/17/14 6 0.363 J 0.234 J 0.806 J ND
Arsenic ug/L 11/05/03 --dry ND --ND
SW Standard = 50 ug/L ug/L 05/25/04 10 dry ND --ND
ug/L 05/16/05 10 dry ND --ND
ug/L 11/25/05 10 dry ND --ND
ug/L 05/24/06 10 dry ND --ND
ug/L 11/20/06 10 dry ND --ND
ug/L 05/22/07 10 dry ND --ND
ug/L 11/15/07 10 ND ND dry ND
ug/L 05/28/08 10 6.6 B 2.9 B ND 4.3 J
ug/L 11/17/08 10 dry ND ND ND
ug/L 05/26/09 10 ND ND ND ND
ug/L 11/11/09 10 2.94 J 2.87 J ND ND
ug/L 05/26/10 10 ND ND ND ND
ug/L 11/15/10 10 ND ND ND 3.98 J
ug/L 05/09/11 10 ND ND 3.13 J ND
ug/L 11/14/11 10 2.81 J ND ND ND
ug/L 05/08/12 10 11.9 ND ND ND
ug/L 11/05/12 10 4.55 B 4.38 B 4.29 B 4.48 J
ug/L 05/13/13 10 ND ND ND ND
ug/L 11/11/13 10 ND ND ND ND
ug/L 05/12/14 10 ND ND ND ND
ug/L 11/17/14 10 ND 6.18 J ND ND
Blanks
Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
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Blanks
Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
Barium ug/L 11/05/03 ----ND --ND
(No SW Standard)ug/L 05/25/04 500 --ND --ND
ug/L 05/16/05 500 --ND --ND
ug/L 11/25/05 500 --ND --ND
ug/L 05/24/06 500 --ND --ND
ug/L 11/20/06 500 --ND --ND
ug/L 05/22/07 100 dry 27.8 J --0.3 J
ug/L 11/15/07 100 40.0 J 12.3 J dry 0.20 J
ug/L 05/28/08 100 21.3 J 58.2 J 57.2 J 0.60 J
ug/L 11/17/08 100 dry 12.1 J 48.1 J ND
ug/L 05/26/09 100 11.2 J 16.9 J 61.0 J ND
ug/L 11/11/09 100 60.1 J 26.0 J 55.9 J ND
ug/L 05/26/10 100 12.5 J 68.2 J 15.2 J ND
ug/L 11/15/10 100 8.18 J 8.11 J 143 ND
ug/L 05/09/11 100 13.2 J 12.5 J 122 ND
ug/L 11/14/11 100 11.9 J 16.4 J 214 ND
ug/L 05/08/12 100 45.9 J 50.6 J 144 ND
ug/L 11/05/12 100 9.37 J 15.6 J 207 ND
ug/L 05/13/13 100 11.5 J 14.4 J 163 1.21 J
ug/L 11/11/13 100 9.56 J 15.5 J 194 1.22 J
ug/L 05/12/14 100 13.8 J 14.5 J 189 ND
ug/L 11/17/14 100 10.0 J 22.4 J 60.2 J ND
Beryllium ug/L 11/05/03 --dry ND --ND
SW Standard = 6.5 ug/L ug/L 05/25/04 2 dry ND --ND
ug/L 05/16/05 2 dry ND --ND
ug/L 11/25/05 2 dry ND --ND
ug/L 05/24/06 2 dry ND --ND
ug/L 11/20/06 2 dry ND --ND
ug/L 05/22/07 1 dry ND --ND
ug/L 11/15/07 1 ND ND dry ND
ug/L 05/28/08 1 ND ND ND ND
ug/L 11/17/08 1 dry ND ND ND
ug/L 05/26/09 1 ND 0.11 J ND ND
ug/L 11/11/09 1 0.425 J 0.303 J ND ND
ug/L 05/26/10 1 ND 0.120 J 0.152 J ND
ug/L 11/15/10 1 ND ND 0.549 J 0.106 J
ug/L 05/09/11 1 ND 0.111 J 0.806 J ND
ug/L 11/14/11 1 ND 0.102 J 0.260 J ND
ug/L 05/08/12 1 0.710 J ND ND ND
ug/L 11/05/12 1 ND 0.128 J 0.363 J ND
ug/L 05/13/13 1 ND ND ND ND
ug/L 11/11/13 1 ND ND 0.337 J ND
ug/L 05/12/14 1 ND ND ND ND
ug/L 11/17/14 1 ND ND ND ND
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Blanks
Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
Cadmium ug/L 11/05/03 --dry ND --ND
SW Standard = 2 ug/L ug/L 05/25/04 1 dry ND --ND
ug/L 05/16/05 1 dry ND --ND
ug/L 11/25/05 1 dry ND --ND
ug/L 05/24/06 1 dry ND --ND
ug/L 11/20/06 1 dry ND --ND
ug/L 05/22/07 1 dry ND --ND
ug/L 11/15/07 1 ND ND dry ND
ug/L 05/28/08 1 ND ND ND ND
ug/L 11/17/08 1 dry ND ND ND
ug/L 05/26/09 1 ND ND ND ND
ug/L 11/11/09 1 ND ND ND ND
ug/L 05/26/10 1 ND ND ND ND
ug/L 11/15/10 1 ND ND 0.360 J ND
ug/L 05/09/11 1 ND ND ND ND
ug/L 11/14/11 1 ND ND ND ND
ug/L 05/08/12 1 ND ND ND ND
ug/L 11/05/12 1 ND ND ND ND
ug/L 05/13/13 1 ND ND ND ND
ug/L 11/11/13 1 ND ND ND ND
ug/L 05/12/14 1 ND ND ND ND
ug/L 11/17/14 1 ND ND ND ND
Chromium ug/L 11/05/03 --dry ND --ND
SW Standard = 50 ug/L ug/L 05/25/04 10 dry ND --ND
ug/L 05/16/05 10 dry ND --ND
ug/L 11/25/05 10 dry ND --ND
ug/L 05/24/06 10 dry ND --ND
ug/L 11/20/06 10 dry ND --ND
ug/L 05/22/07 10 dry ND --ND
ug/L 11/15/07 10 ND ND dry ND
ug/L 05/28/08 10 2.0 J 19.4 ND ND
ug/L 11/17/08 10 dry 7.2 B 7.9 B 4.9 J
ug/L 05/26/09 10 ND ND ND ND
ug/L 11/11/09 10 1.23 J ND ND ND
ug/L 05/26/10 10 ND 1.35 J ND ND
ug/L 11/15/10 10 ND ND ND ND
ug/L 05/09/11 10 ND ND ND ND
ug/L 11/14/11 10 ND ND ND ND
ug/L 05/08/12 10 9.66 J ND ND ND
ug/L 11/05/12 10 ND ND ND ND
ug/L 05/13/13 10 ND ND ND ND
ug/L 11/11/13 10 ND ND ND ND
ug/L 05/12/14 10 ND ND ND ND
ug/L 11/17/14 10 ND 1.57 J ND ND
January 2015 Page 4 of 9 Project No. 0739603714.100
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Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
Cobalt ug/L 11/05/03 ----ND --ND
(No SW Standard)ug/L 05/25/04 10 --ND --ND
ug/L 05/16/05 10 --ND --ND
ug/L 11/25/05 10 --ND --ND
ug/L 05/24/06 10 --ND --ND
ug/L 11/20/06 10 --ND --ND
ug/L 05/22/07 10 dry 5.6 J --ND
ug/L 11/15/07 10 2.5 J 3.3 J dry ND
ug/L 05/28/08 10 2.5 J 6.0 J 4.1 J ND
ug/L 11/17/08 10 dry ND 2.3 J ND
ug/L 05/26/09 10 1.1 J 3.3 J 0.9 J ND
ug/L 11/11/09 10 1.33 J 6.13 J 1.17 J ND
ug/L 05/26/10 10 ND 1.39 J 2.05 J ND
ug/L 11/15/10 10 ND ND 9.34 J ND
ug/L 05/09/11 10 ND 1.72 J 13.1 ND
ug/L 11/14/11 10 1.97 J 3.13 J 6.43 J ND
ug/L 05/08/12 10 2.20 J 4.46 J ND ND
ug/L 11/05/12 10 2.16 J 3.16 J 4.96 J ND
ug/L 05/13/13 10 1.61 J 1.53 J ND ND
ug/L 11/11/13 10 1.14 J 1.90 J 6.10 J ND
ug/L 05/12/14 10 1.46 J 1.24 J 2.05 J ND
ug/L 11/17/14 10 1.43 J 1.93 J ND ND
Copper ug/L 11/05/03 --dry ND --ND
SW Standard = 7 ug/L*ug/L 05/25/04 200 dry ND --ND
ug/L 05/16/05 200 dry ND --ND
ug/L 11/25/05 200 dry ND --ND
ug/L 05/24/06 200 dry ND --ND
ug/L 11/20/06 200 dry ND --ND
ug/L 05/22/07 10 dry ND --ND
ug/L 11/15/07 10 ND ND dry ND
ug/L 05/28/08 10 1.20 B ND ND 1.00 J
ug/L 11/17/08 10 dry ND 1.70 J ND
ug/L 05/26/09 10 ND ND ND 1.47 J
ug/L 11/11/09 10 ND ND ND ND
ug/L 05/26/10 10 ND ND ND ND
ug/L 11/15/10 10 ND ND 2.48 J ND
ug/L 05/09/11 10 ND ND 2.63 J ND
ug/L 11/14/11 10 ND 1.67 J 2.82 J ND
ug/L 05/08/12 10 10.6 ND 2.86 J ND
ug/L 11/05/12 10 ND ND ND ND
ug/L 05/13/13 10 ND ND ND ND
ug/L 11/11/13 10 ND ND ND ND
ug/L 05/12/14 10 ND ND 1.70 J ND
ug/L 11/17/14 10 ND ND ND ND
January 2015 Page 5 of 9 Project No. 0739603714.100
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Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
Lead ug/L 11/05/03 --dry ND --ND
SW Standard = 25 ug/L*ug/L 05/25/04 10 dry ND --ND
ug/L 05/16/05 10 dry ND --ND
ug/L 11/25/05 10 dry ND --ND
ug/L 05/24/06 10 dry ND --ND
ug/L 11/20/06 10 dry ND --ND
ug/L 05/22/07 10 dry ND --ND
ug/L 11/15/07 10 ND ND dry ND
ug/L 05/28/08 10 2.0 J 13.3 ND ND
ug/L 11/17/08 10 dry ND ND ND
ug/L 05/26/09 10 ND 2.0 J 1.7 J ND
ug/L 11/11/09 10 1.99 J 2.84 J ND ND
ug/L 05/26/10 10 ND 2.47 J 2.40 J ND
ug/L 11/15/10 10 2.61 J ND 6.28 J ND
ug/L 05/09/11 10 3.82 J ND 8.16 J ND
ug/L 11/14/11 10 ND ND ND ND
ug/L 05/08/12 10 42.6 ND 2.49 J ND
ug/L 11/05/12 10 1.99 J 2.01 J 2.12 J ND
ug/L 05/13/13 10 ND ND ND ND
ug/L 11/11/13 10 ND ND 2.24 J ND
ug/L 05/12/14 10 2.15 J ND ND ND
ug/L 11/17/14 10 ND ND ND ND
Nickel ug/L 11/05/03 ----ND --ND
SW Standard = 88 ug/L**ug/L 05/25/04 50 --ND --ND
ug/L 05/16/05 50 --ND --ND
ug/L 11/25/05 50 --ND --ND
ug/L 05/24/06 50 --ND --ND
ug/L 11/20/06 50 --ND --ND
ug/L 05/22/07 50 dry 7.6 J --ND
ug/L 11/15/07 50 ND 2.6 J dry ND
ug/L 05/28/08 50 3.6 J 11.3 J 12.5 J ND
ug/L 11/17/08 50 dry 6.7 B 9.0 B 3.2 J
ug/L 05/26/09 50 2.1 B 4.5 J 3.7 J 0.7 J
ug/L 11/11/09 50 ND 6.92 J ND ND
ug/L 05/26/10 50 ND 2.28 J ND ND
ug/L 11/15/10 50 ND ND 9.91 J ND
ug/L 05/09/11 50 2.47 J 2.04 J 16.8 J ND
ug/L 11/14/11 50 2.64 J 3.75 J 7.47 J ND
ug/L 05/08/12 50 9.14 J 2.86 J 2.69 J ND
ug/L 11/05/12 50 2.06 J 2.09 J 4.90 J ND
ug/L 05/13/13 50 2.52 J ND 3.77 J ND
ug/L 11/11/13 50 ND ND 4.66 J ND
ug/L 05/12/14 50 ND ND 3.19 J ND
ug/L 11/17/14 50 ND ND 4.34 J ND
January 2015 Page 6 of 9 Project No. 0739603714.100
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Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
Selenium ug/L 11/05/03 ----ND --ND
SW Standard = 5 ug/L ug/L 05/25/04 20 --ND --ND
ug/L 05/16/05 20 --ND --ND
ug/L 11/25/05 20 --ND --ND
ug/L 05/24/06 20 --ND --ND
ug/L 11/20/06 20 --ND --ND
ug/L 05/22/07 10 dry ND --ND
ug/L 11/15/07 10 2.0 B ND dry 3.1 J
ug/L 05/28/08 10 ND ND ND ND
ug/L 11/17/08 10 dry ND ND ND
ug/L 05/26/09 10 ND ND ND ND
ug/L 11/11/09 10 ND ND ND ND
ug/L 05/26/10 10 ND ND ND ND
ug/L 11/15/10 10 ND ND ND ND
ug/L 05/09/11 10 2.85 J ND ND ND
ug/L 05/09/11 10 0.987 J ND ND ND
ug/L 11/14/11 10 ND ND ND ND
ug/L 05/08/12 10 ND ND ND 4.01 J
ug/L 11/05/12 10 ND ND ND ND
ug/L 05/13/13 10 ND ND ND ND
ug/L 11/11/13 10 ND ND ND ND
ug/L 05/12/14 10 ND ND ND ND
ug/L 11/17/14 10 ND ND ND ND
Silver ug/L 11/05/03 --dry ND --ND
SW Standard = 0.06 ug/L*ug/L 05/25/04 10 dry ND --ND
ug/L 05/16/05 10 dry ND --ND
ug/L 11/25/05 10 dry ND --ND
ug/L 05/24/06 10 dry ND --ND
ug/L 11/20/06 10 dry ND --ND
ug/L 05/22/07 10 dry ND --ND
ug/L 11/15/07 10 ND ND dry ND
ug/L 05/28/08 10 ND ND ND ND
ug/L 11/17/08 10 dry ND 2.6 J ND
ug/L 05/26/09 10 ND ND ND ND
ug/L 11/11/09 10 ND ND ND ND
ug/L 05/26/10 10 ND ND ND ND
ug/L 11/15/10 10 ND ND ND ND
ug/L 05/09/11 10 ND ND ND ND
ug/L 11/14/11 10 ND ND ND ND
ug/L 05/08/12 10 ND ND ND ND
ug/L 11/05/12 10 ND ND ND ND
ug/L 05/13/13 10 ND ND ND ND
ug/L 11/11/13 10 ND ND ND ND
ug/L 05/12/14 10 ND ND ND ND
ug/L 11/17/14 10 ND ND ND ND
January 2015 Page 7 of 9 Project No. 0739603714.100
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Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
Thallium ug/L 11/05/03 --dry ND --ND
(No SW Standard)ug/L 05/25/04 10 dry ND --ND
ug/L 05/16/05 10 dry ND --ND
ug/L 11/25/05 10 dry ND --ND
ug/L 05/24/06 10 dry ND --ND
ug/L 11/20/06 10 dry ND --ND
ug/L 05/22/07 5.5 dry ND --ND
ug/L 11/15/07 5.5 ND ND dry --
ug/L 05/28/08 5.5 ND 0.064 J 0.043 J ND
ug/L 11/17/08 5.5 dry ND ND ND
ug/L 05/26/09 5.5 ND ND ND ND
ug/L 11/11/09 5.5 ND ND ND ND
ug/L 05/26/10 5.5 ND ND ND ND
ug/L 11/15/10 5.5 ND ND ND ND
ug/L 05/09/11 5.5 ND ND ND ND
ug/L 11/14/11 5.5 ND ND ND ND
ug/L 05/08/12 5.5 ND ND ND ND
ug/L 11/05/12 5.5 ND ND ND ND
ug/L 05/13/13 5.5 ND ND ND ND
ug/L 11/11/13 5.5 ND ND ND ND
ug/L 05/12/14 5.5 ND ND ND ND
ug/L 11/17/14 5.5 ND ND ND ND
Vanadium ug/L 11/05/03 --dry ND --ND
(No SW Standard)ug/L 05/25/04 40 dry ND --ND
ug/L 05/16/05 40 dry ND --ND
ug/L 11/25/05 40 dry ND --ND
ug/L 05/24/06 40 dry ND --ND
ug/L 11/20/06 40 dry ND --ND
ug/L 05/22/07 25 dry ND --ND
ug/L 11/15/07 25 ND ND dry ND
ug/L 05/28/08 25 1.7 B 42.8 ND 1.2 J
ug/L 11/17/08 25 dry ND ND ND
ug/L 05/26/09 25 0.7 J 1.1 J 1.2 J ND
ug/L 11/11/09 25 1.74 J 1.61 J ND ND
ug/L 05/26/10 25 ND 3.13 J ND ND
ug/L 11/15/10 25 ND ND ND ND
ug/L 05/09/11 25 ND ND ND ND
ug/L 11/14/11 25 ND ND ND ND
ug/L 05/08/12 25 12.9 J ND ND ND
ug/L 11/05/12 25 ND ND ND ND
ug/L 05/13/13 25 ND ND ND ND
ug/L 11/11/13 25 ND ND ND ND
ug/L 05/12/14 25 ND ND ND ND
ug/L 11/17/14 25 ND 3.28 J ND ND
January 2015 Page 8 of 9 Project No. 0739603714.100
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Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
Zinc ug/L 11/05/03 ----ND --ND
SW Standard = 50 ug/L*ug/L 05/25/04 50 --ND --ND
ug/L 05/16/05 50 --ND --ND
ug/L 11/25/05 50 --ND --ND
ug/L 05/24/06 50 --ND --ND
ug/L 11/20/06 50 --ND --ND
ug/L 05/22/07 10 dry 17.8 --ND
ug/L 11/15/07 10 6.6 J 6.5 J dry ND
ug/L 05/28/08 10 6.9 B 31.9 15.9 1.8 J
ug/L 11/17/08 10 dry 9.7 B 24.2 4.6 J
ug/L 05/26/09 10 ND 14.6 19.7 ND
ug/L 11/11/09 10 16.0 31.3 22.4 ND
ug/L 05/26/10 10 ND 42.0 5.72 J ND
ug/L 11/15/10 10 ND ND 97.8 ND
ug/L 12/21/10 10 ----98.1 --
ug/L 05/09/11 10 4.82 J 10.4 110 ND
ug/L 11/14/11 10 4.35 J 10.6 36.8 ND
ug/L 05/08/12 10 14.5 6.92 J 8.29 J ND
ug/L 11/05/12 10 ND ND 24.6 ND
ug/L 05/13/13 10 5.55 J 5.15 J 6.06 J ND
ug/L 11/11/13 10 4.13 J 4.26 J 47.5 ND
ug/L 05/12/14 10 ND ND 21.0 ND
ug/L 11/17/14 10 4.51 J 7.67 J 5.23 J ND
Acetone ug/L 11/05/03 100 dry ND --ND
SW Standard = 2 ug/L*ug/L 05/25/04 100 dry ND --ND
ug/L 05/16/05 100 dry ND --ND
ug/L 11/25/05 100 dry ND --ND
ug/L 05/24/06 100 dry ND --ND
ug/L 11/20/06 100 dry ND --ND
ug/L 05/22/07 100 dry ND --6.6 J
ug/L 11/15/07 100 ND ND dry --
ug/L 05/28/08 100 ND 5.6 B 7.1 B 2.9 J
ug/L 11/17/08 100 dry 8.4 B 9.2 B 9.8 J
ug/L 05/26/09 100 ND ND ND ND
ug/L 11/11/09 100 ND ND ND ND
ug/L 05/26/10 100 ND ND ND ND
ug/L 11/15/10 100 ND ND 9.7 B 9.2 J
ug/L 05/09/11 100 ND ND 3.9 J ND
ug/L 11/14/11 100 ND ND ND ND
ug/L 05/08/12 100 ND ND ND ND
ug/L 11/05/12 100 ND ND ND ND
ug/L 11/05/12 100 ND ND ND ND
ug/L 05/13/13 100 ND ND ND ND
ug/L 11/11/13 100 ND ND ND ND
ug/L 05/12/14 100 ND ND ND ND
ug/L 11/17/14 100 ND ND ND ND
January 2015 Page 9 of 9 Project No. 0739603714.100
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Sampson County, North Carolina
TABLE 8
Summary of Surface Water Monitoring Results
Detected Constituents
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date
SWS
Reporting
Limit
DownstreamUpstream
SW-1 SW-4 SW-5
Chloroform ug/L 11/05/03 5 --ND --ND
(No SW Standard)ug/L 05/25/04 5 --ND --ND
ug/L 05/16/05 5 --ND --ND
ug/L 11/25/05 5 --ND --ND
ug/L 05/24/06 5 --ND --ND
ug/L 11/20/06 5 --ND --ND
ug/L 05/22/07 5 dry ND --ND
ug/L 11/15/07 5 ND 0.48 J dry ND
ug/L 05/28/08 5 ND ND ND ND
ug/L 11/17/08 5 dry ND ND ND
ug/L 05/26/09 5 ND ND ND ND
ug/L 11/11/09 5 ND ND ND ND
ug/L 05/26/10 5 ND ND ND ND
ug/L 11/15/10 5 ND ND ND ND
ug/L 05/09/11 5 ND ND ND ND
ug/L 11/14/11 5 ND ND ND ND
ug/L 05/08/12 5 ND ND ND ND
ug/L 11/05/12 5 ND ND ND ND
ug/L 11/05/12 5 ND ND ND ND
ug/L 05/13/13 5 ND ND ND ND
ug/L 11/11/13 5 ND ND ND ND
ug/L 05/12/14 5 ND ND ND ND
ug/L 11/17/14 5 ND ND ND ND
Notes:ug/L =micrograms per liter
ND =Not detected at the stated reporting limit
J =estimated value
-- =no data
Blanks =field, trip and/or method blanks
Bold = Concentrations above applicable Surface Water Standards
SWS Reporting Limit =NCPQL or lab-specific reporting limit prior to 2007 and NCSWSL starting on 1/18/07
dry =
SW Standard =
* =SW Standard = Action Level
** =
1) Surface Water Standards based on Class C Freshwater Aquatic Life
stream classification for the Bearskin Swamp per 15A NCAC 2B.
3) Data prior to 2/28/07 provided by Richardson, Smith, Gardner and Associates.
4) SW-5 was added as a downstream sampling point for Phase 2 following the May 2007 sampling event.
5) Data in parentheses are from laboratory re-analysis.
no sample collected because sampling point was dry
Surface Water Standard
Narrative Standard
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pH (field)S.U.05/24/06 --5.1 --
S.U.11/20/06 --4.4 --
S.U.05/23/07 dry 3.14 --
S.U.11/13/07 5.60 6.16 dry
S.U.05/28/08 4.12 3.84 6.30
S.U.11/17/08 dry 4.03 6.23
S.U.05/26/09 4.34 4.20 6.67
S.U.11/11/09 3.18 3.44 5.80
S.U.05/26/10 4.35 4.23 5.54
S.U.11/15/10 4.26 4.06 3.90
(Verification)S.U.12/21/10 ----3.60
S.U.05/09/11 2.88 3.26 3.30
S.U.11/14/11 5.03 4.45 4.07
S.U.05/08/12 4.25 5.30 6.19
S.U.11/05/12 3.53 4.12 4.14
S.U.05/13/13 5.54 4.48 5.37
S.U.11/11/13 4.54 4.30 4.42
S.U.05/12/14 5.00 4.47 5.72
S.U.11/18/14 4.12 4.40 5.64
Specific Conductance (field)uS/cm 05/24/06 --23 --
uS/cm 11/20/06 --54 --
uS/cm 05/23/07 dry 111 --
uS/cm 11/13/07 177 109 dry
uS/cm 05/28/08 59 119 672
uS/cm 11/17/08 dry 41 367
uS/cm 05/26/09 34 69 329
uS/cm 11/11/09 128 129 423
uS/cm 05/26/10 32 50 253
uS/cm 11/15/10 34 51 482
(Verification)uS/cm 12/21/10 ----567
uS/cm 05/09/11 40 53 531
uS/cm 11/14/11 35 62 443
uS/cm 05/08/12 34 114 431
uS/cm 11/05/12 27 44 253
uS/cm 05/13/13 36 38 420
uS/cm 11/11/13 69 88 317
uS/cm 05/12/14 53 64 479
uS/cm 11/18/14 40 49 605
Downstream
SW-1 SW-4 SW-5
TABLE 9
Summary of Surface Water Field Parameters
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Sampson County, North Carolina
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date Upstream
January 2015 Page 2 of 3 Project No. 0739603714.100
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Downstream
SW-1 SW-4 SW-5
TABLE 9
Summary of Surface Water Field Parameters
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Sampson County, North Carolina
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date Upstream
Temperature (field)Celsius 05/24/06 --16 --
Celsius 11/20/06 --13 --
Celsius 05/23/07 dry 17.27 --
Celsius 11/13/07 13.89 14.76 dry
Celsius 05/28/08 16.67 17.02 17.25
Celsius 11/17/08 dry 10.74 11.24
Celsius 05/26/09 17.44 18.18 19.01
Celsius 11/11/09 15.24 15.22 14.93
Celsius 05/26/10 17.04 17.59 19.38
Celsius 11/15/10 14.62 17.20 10.93
(Verification)Celsius 12/21/10 ----4.10
Celsius 05/09/11 16.44 16.41 20.18
Celsius 11/14/11 16.50 16.67 18.69
Celsius 05/08/12 16.96 20.97 27.52
Celsius 11/05/12 10.60 10.56 7.88
Celsius 05/13/13 15.75 15.51 22.36
Celsius 11/11/13 12.8 12.8 10.1
Celsius 05/12/14 17.7 17.9 27.7
Celsius 11/18/14 11.2 10.9 9.3
Turbidity (field)NTU 05/23/07 dry ----
NTU 11/13/07 72.7 51.3 dry
NTU 05/28/08 41.1 663 74.6
NTU 11/17/08 dry 0.85 5.53
NTU 05/26/09 25.7 10.3 14.3
NTU 11/11/09 8.38 62.9 11.3
NTU 05/26/10 2.95 7.60 34.9
NTU 11/15/10 4.38 33.8 21.0
(Verification)NTU 12/21/10 ----3.34
NTU 05/09/11 3.57 2.58 1.25
NTU 11/14/11 17.7 17.9 3.08
NTU 05/08/12 47.0 3.06 21.2
NTU 11/05/12 7.86 2.28 1.31
NTU 05/13/13 6.18 4.15 9.13
NTU 11/11/13 3.40 11.6 2.42
NTU 05/12/14 6.95 8.43 7.41
NTU 11/18/14 158 44.4 7.89
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Downstream
SW-1 SW-4 SW-5
TABLE 9
Summary of Surface Water Field Parameters
Sampson County Active MSW/C&D Landfill , Permit No. 82-02
Sampson County, North Carolina
Detected Monitoring
Constituent/Parameter
Reporting
Units Sample Date Upstream
ORP (field)mV 05/23/07 dry 457 --
mV 11/13/07 242 280 dry
mV 05/28/08 364 365 30
mV 11/17/08 dry 270.0 160.0
mV 05/26/09 197.1 237.8 71.7
mV 11/11/09 342.4 270.1 204.8
mV 05/26/10 246.9 219.5 148.2
mV 11/15/10 318.9 297.8 311.5
(Verification)mV 12/21/10 ----352.3
mV 05/09/11 272.7 272.3 210.9
mV 11/14/11 148.0 153.2 228.1
mV 05/08/12 160.3 143.7 125.6
mV 11/05/12 169.9 126.8 156.3
mV 05/13/13 134.5 155.8 88.8
mV 11/11/13 355.6 273.4 426.3
mV 05/12/14 358.8 314.4 287.5
mV 11/18/14 290.7 164.9 169.0
Dissolved Oxygen (field)mg/L 05/23/07 dry 0.7 --
mg/L 11/13/07 9.13 9.00 dry
mg/L 05/28/08 8.16 7.91 6.18
mg/L 11/17/08 dry 9.40 6.74
mg/L 05/26/09 7.57 7.25 13.15
mg/L 11/11/09 5.91 8.22 5.86
mg/L 05/26/10 7.49 8.82 3.76
mg/L 11/15/10 10.95 9.73 13.69
(Verification)mg/L 12/21/10 ----14.46
mg/L 05/09/11 8.72 9.18 10.33
mg/L 11/14/11 7.67 7.18 8.09
mg/L 05/08/12 7.51 6.20 5.71
mg/L 11/05/12 9.31 7.40 8.44
mg/L 05/13/13 8.89 8.34 8.69
mg/L 11/11/13 9.77 8.48 9.26
mg/L 05/12/14 8.55 7.71 5.50
mg/L 11/18/14 10.74 9.44 10.12
Notes:mg/L =milligrams per liter
S.U. =Standard Units
NTU =Nephelometric Turbidity Units
uS/cm =microsiemens per centimeter
mV =millivolts
-- =no data
dry = no sample collected because sampling point was dry
1)SW-5 was added as a downstream sampling point for Phase 2 following the
following the May 2007 sampling event.
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
LimitAntimonyug/L 05/23/07 6 84.8 NDug/L 11/15/07 6 11.0 NDug/L 05/28/08 6 16.8 J NDug/L 11/20/08 6 9.20 J NDug/L 05/28/09 6 15.3 J NDug/L 11/12/09 6 6.42 J 0.0730 J
ug/L 05/27/10 6 9.61 J ND
ug/L 11/15/10 6 11.5 J NDug/L 05/12/11 6 8.95 J ND
ug/L 11/17/11 6 8.09 J NDug/L 05/10/12 6 10.4 J NDug/L 11/09/12 6 2.66 J NDug/L 05/15/13 6 ND NDug/L 11/13/13 6 ND NDug/L 05/14/14 6 26.5 J NDug/L 11/19/14 6 23.0 ND
Arsenic ug/L 05/24/06 10 25 NDug/L 11/27/06 10 62 NDug/L 05/23/07 10 ND 2.2 Jug/L 11/15/07 10 ND 2.4 Jug/L 05/28/08 10 ND 3.2 Jug/L 11/20/08 10 ND NDug/L 05/28/09 10 89.5 J ND
ug/L 11/12/09 10 41.2 NDug/L 05/27/10 10 53.7 ND
ug/L 11/15/10 10 31.0 NDug/L 05/12/11 10 29.7 NDug/L 11/17/11 10 51.1 J NDug/L 05/10/12 10 78.5 NDug/L 11/09/12 10 59.6 4.48 Jug/L 05/15/13 10 50.2 NDug/L 11/13/13 10 103 ND
ug/L 05/14/14 10 84.9 NDug/L 11/19/14 10 122 ND
Barium ug/L 05/23/07 100 46.5 J 0.30 Jug/L 11/15/07 100 33.8 J 0.20 Jug/L 05/28/08 100 98.0 J 0.60 Jug/L 11/20/08 100 178 NDug/L 05/28/09 100 152 NDug/L 11/12/09 100 66.9 J NDug/L 05/27/10 100 177 ND
ug/L 11/15/10 100 156 NDug/L 05/12/11 100 49.6 J NDug/L 11/17/11 100 241 NDug/L 05/10/12 100 220 NDug/L 11/09/12 100 72.4 J NDug/L 05/15/13 100 256 NDug/L 11/13/13 100 285 ND
ug/L 05/14/14 100 243 NDug/L 11/19/14 100 207 ND
Beryllium ug/L 05/23/07 1 ND NDug/L 11/15/07 1 ND NDug/L 05/29/08 1 ND NDug/L 11/20/08 1 ND NDug/L 05/28/09 1 ND NDug/L 11/12/09 1 ND NDug/L 05/27/10 1 ND ND
ug/L 11/15/10 1 ND 0.106 Jug/L 05/12/11 1 ND ND
ug/L 11/17/11 1 ND NDug/L 05/10/12 1 ND NDug/L 11/09/12 1 ND NDug/L 05/15/13 1 ND NDug/L 11/13/13 1 ND NDug/L 05/14/14 1 ND NDug/L 11/19/14 1 ND ND
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
Cadmium ug/L 05/24/06 10 76 ND
ug/L 11/27/06 10 37 NDug/L 05/23/07 1 ND NDug/L 11/15/07 1 ND NDug/L 05/28/08 1 ND 0.50 Jug/L 11/20/08 1 ND NDug/L 05/28/09 1 0.90 J NDug/L 11/12/09 1 ND ND
ug/L 05/27/10 1 ND NDug/L 11/15/10 1 ND NDug/L 05/12/11 1 ND NDug/L 11/17/11 1 ND NDug/L 05/10/12 1 ND NDug/L 11/09/12 1 ND NDug/L 05/15/13 1 ND ND
ug/L 11/13/13 1 ND NDug/L 05/14/14 1 ND ND
ug/L 11/19/14 1 ND NDChromiumug/L 11/27/06 10 29 NDug/L 05/23/07 10 ND NDug/L 05/23/07 10 143 NDug/L 11/15/07 10 ND NDug/L 05/28/08 10 ND NDug/L 11/20/08 10 47.0 J 4.9 J
ug/L 05/28/09 10 171 NDug/L 11/12/09 10 141 ND
ug/L 05/27/10 10 121 NDug/L 11/15/10 10 114 NDug/L 05/12/11 10 103 NDug/L 11/17/11 10 174 NDug/L 05/10/12 10 233 NDug/L 11/09/12 10 161 NDug/L 05/15/13 10 250 ND
ug/L 11/13/13 10 253 NDug/L 05/14/14 10 230 NDug/L 11/19/14 10 289 NDCobaltug/L 05/24/06 10 89 NDug/L 11/15/07 10 213 NDug/L 05/28/08 10 181 1.0 Jug/L 11/20/08 10 158 ND
ug/L 05/28/09 10 184 NDug/L 11/12/09 10 83.5 ND
ug/L 05/27/10 10 119 NDug/L 11/15/10 10 65.5 NDug/L 05/12/11 10 83.6 NDug/L 11/17/11 10 69.9 J NDug/L 05/10/12 10 143 NDug/L 11/09/12 10 84.7 NDug/L 05/15/13 10 108 ND
ug/L 11/13/13 10 100 NDug/L 05/14/14 10 95.7 ND
ug/L 11/19/14 10 129 NDCopperug/L 05/23/07 10 ND NDug/L 11/15/07 10 ND NDug/L 05/28/08 10 91.0 J NDug/L 11/20/08 10 ND NDug/L 05/28/09 10 ND 1.47 Jug/L 11/12/09 10 4.06 J ND
ug/L 05/27/10 10 13.1 NDug/L 11/15/10 10 ND NDug/L 05/12/11 10 2.81 J NDug/L 11/17/11 10 ND NDug/L 05/10/12 10 9.97 J NDug/L 11/09/12 10 ND NDug/L 05/15/13 10 ND ND
ug/L 11/13/13 10 31.9 J NDug/L 05/14/14 10 212 ND
ug/L 11/19/14 10 99.5 ND
January 2015 Page 3 of 10 Project No. 0739603714.100
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
Lead ug/L 05/23/07 10 ND ND
ug/L 11/15/07 10 ND NDug/L 05/29/08 10 ND NDug/L 11/20/08 10 ND NDug/L 05/28/09 10 16.0 J NDug/L 11/12/09 10 ND NDug/L 05/27/10 10 4.07 J NDug/L 11/15/10 10 3.24 J ND
ug/L 05/12/11 10 5.44 J NDug/L 11/17/11 10 ND NDug/L 05/10/12 10 15.9 J ND
ug/L 11/09/12 10 17.2 J 2.36 J
ug/L 05/15/13 10 ND ND
ug/L 11/13/13 10 ND NDug/L 05/14/14 10 14.3 J NDug/L 11/19/14 10 10.9 J NDNickelug/L 05/24/06 50 150 NDug/L 05/23/07 50 158 NDug/L 11/15/07 50 235 NDug/L 05/28/08 50 255 ND
ug/L 11/20/08 50 267 3.2 J
ug/L 05/28/09 50 252 1.7 J
ug/L 11/12/09 50 125 ND
ug/L 05/27/10 50 203 ND
ug/L 11/15/10 50 126 ND
ug/L 05/12/11 50 172 ND
ug/L 11/17/11 50 196 NDug/L 05/10/12 50 300 NDug/L 11/09/12 50 216 NDug/L 05/15/13 50 318 NDug/L 11/13/13 50 299 NDug/L 05/14/14 50 268 ND
ug/L 11/19/14 50 323 ND
Selenium ug/L 11/27/06 20 178 ND
ug/L 05/23/07 10 ND ND
ug/L 11/15/07 10 12.7 B 3.1 J
ug/L 05/28/08 10 21.0 J 2.1 J
ug/L 11/20/08 10 ND ND
ug/L 05/28/09 10 ND NDug/L 11/12/09 10 6.63 J NDug/L 05/27/10 10 3.49 J NDug/L 11/15/10 10 11.3 NDug/L 05/12/11 10 ND NDug/L 11/17/11 10 ND NDug/L 05/10/12 10 15.9 J ND
ug/L 11/09/12 10 ND ND
ug/L 05/15/13 10 ND ND
ug/L 11/13/13 10 ND ND
ug/L 05/14/14 10 ND ND
ug/L 11/19/14 10 ND ND
Silver ug/L 05/23/07 10 ND ND
ug/L 11/15/07 10 ND NDug/L 05/28/08 10 28.0 J 2.9 Jug/L 11/20/08 10 ND NDug/L 05/28/09 10 18.1 J NDug/L 11/12/09 10 ND NDug/L 05/27/10 10 ND ND
ug/L 11/15/10 10 ND ND
ug/L 05/12/11 10 2.86 J ND
ug/L 11/17/11 10 ND ND
ug/L 05/10/12 10 ND ND
ug/L 11/09/12 10 ND ND
ug/L 05/15/13 10 ND ND
ug/L 11/13/13 10 ND NDug/L 05/14/14 10 ND NDug/L 11/19/14 10 ND ND
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
Thallium ug/L 05/23/07 5.5 ND NDug/L 11/15/07 5.5 ND NDug/L 05/29/08 5.5 ND NDug/L 11/20/08 5.5 ND NDug/L 05/28/09 5.5 ND NDug/L 11/12/09 5.5 ND ND
ug/L 05/27/10 5.5 ND ND
ug/L 11/15/10 5.5 ND ND
ug/L 05/12/11 5.5 7.80 J ND
ug/L 11/17/11 5.5 1.52 J NDug/L 05/10/12 5.5 ND NDug/L 11/09/12 5.5 ND NDug/L 05/15/13 5.5 ND NDug/L 11/13/13 5.5 ND ND
ug/L 05/14/14 5.5 ND NDug/L 11/19/14 5.5 ND ND
Vanadium ug/L 05/24/06 40 54 NDug/L 11/27/06 50 237 NDug/L 05/23/07 25 54.5 NDug/L 11/15/07 25 16.0 J ND
ug/L 05/28/08 25 42.0 J 1.2 J
ug/L 11/20/08 25 35.0 J ND
ug/L 05/28/09 25 88.8 J ND
ug/L 11/12/09 25 69.5 ND
ug/L 05/27/10 25 65.9 ND
ug/L 11/15/10 25 63.2 ND
ug/L 05/12/11 25 49.5 ND
ug/L 11/17/11 25 73.1 J ND
ug/L 05/10/12 25 115 NDug/L 11/09/12 25 83.4 J NDug/L 05/15/13 25 127 NDug/L 11/13/13 25 122 NDug/L 05/14/14 25 105 NDug/L 11/19/14 25 119 ND
Zinc ug/L 05/24/06 50 409 ND
ug/L 05/23/07 10 373 ND
ug/L 11/15/07 10 705 ND
ug/L 05/28/08 10 678 1.8 J
ug/L 11/20/08 10 423 4.6 J
ug/L 05/28/09 10 354 ND
ug/L 11/12/09 10 270 NDug/L 05/27/10 10 225 NDug/L 11/15/10 10 383 NDug/L 05/12/11 10 178 NDug/L 11/17/11 10 228 NDug/L 05/10/12 10 520 NDug/L 11/09/12 10 204 ND
ug/L 05/15/13 10 181 ND
ug/L 11/13/13 10 219 ND
ug/L 05/14/14 10 423 ND
ug/L 11/19/14 10 232 ND
Acetone ug/L 05/24/06 100 1610 ND
ug/L 11/27/06 100 5300 ND
ug/L 05/23/07 100 11000 6.6 Jug/L 11/15/07 100 33 J NDug/L 05/28/08 100 1600 2.9 Jug/L 11/20/08 100 1500 9.8ug/L 05/28/09 100 5200 NDug/L 11/12/09 100 1000 ND
ug/L 05/27/10 100 ND ND
ug/L 11/15/10 100 5900 ND
ug/L 05/12/11 100 ND ND
ug/L 11/17/11 100 3100 ND
ug/L 05/10/12 100 93 J ND
ug/L 11/09/12 100 44 J ND
ug/L 05/15/13 100 ND ND
ug/L 11/13/13 100 2700 ND
ug/L 05/14/14 100 1400 ND
ug/L 11/19/14 100 ND ND
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
Benzene ug/L 11/27/06 5 10.6 NDug/L 05/23/07 1 ND NDug/L 11/15/07 1 ND NDug/L 05/28/08 1 ND NDug/L 11/20/08 1 4.6 J NDug/L 05/28/09 1 ND ND
ug/L 11/12/09 1 ND ND
ug/L 05/27/10 1 ND ND
ug/L 11/15/10 1 ND ND
ug/L 05/12/11 1 ND ND
ug/L 11/17/11 1 ND ND
ug/L 05/10/12 1 2.2 J ND
ug/L 11/09/12 1 ND NDug/L 05/15/13 1 6.2 NDug/L 11/13/13 1 ND NDug/L 05/14/14 1 ND NDug/L 11/19/14 1 ND ND1,4-Dichlorobenzene ug/L 05/23/07 1 ND ND
ug/L 11/15/07 1 ND ND
ug/L 05/29/08 1 ND ND
ug/L 11/20/08 1 5.5 J ND
ug/L 05/28/09 1 ND ND
ug/L 11/12/09 1 ND ND
ug/L 05/27/10 1 ND ND
ug/L 11/15/10 1 ND NDug/L 05/12/11 1 ND NDug/L 11/17/11 1 9.7 J NDug/L 05/10/12 1 4.3 J NDug/L 11/09/12 1 3.6 J NDug/L 05/15/13 1 ND NDug/L 11/13/13 1 ND ND
ug/L 05/14/14 1 ND ND
ug/L 11/19/14 1 ND ND
1,2-Dichloroethane ug/L 11/27/06 5 6.6 ND
ug/L 05/23/07 1 ND ND
ug/L 11/15/07 1 ND ND
ug/L 05/28/08 1 ND ND
ug/L 11/20/08 1 ND NDug/L 05/28/09 1 ND NDug/L 11/12/09 1 ND NDug/L 05/27/10 1 ND NDug/L 11/15/10 1 ND NDug/L 05/12/11 1 ND ND
ug/L 11/17/11 1 ND ND
ug/L 05/10/12 1 ND ND
ug/L 11/09/12 1 ND ND
ug/L 05/15/13 1 ND ND
ug/L 11/13/13 1 ND ND
ug/L 05/14/14 1 ND ND
ug/L 11/19/14 1 ND NDcis-1,2-Dichloroethene ug/L 11/27/06 5 5.4 NDug/L 05/23/07 5 ND NDug/L 11/15/07 5 ND NDug/L 05/28/08 5 ND NDug/L 11/20/08 5 ND NDug/L 05/28/09 5 ND ND
ug/L 11/12/09 5 ND ND
ug/L 05/27/10 5 ND ND
ug/L 11/15/10 5 ND ND
ug/L 05/12/11 5 ND ND
ug/L 11/17/11 5 ND ND
ug/L 05/10/12 5 ND ND
ug/L 11/09/12 5 ND NDug/L 05/15/13 5 ND NDug/L 11/13/13 5 ND NDug/L 05/14/14 5 ND NDug/L 11/19/14 5 ND ND
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
Ethylbenzene ug/L 05/24/06 5 6.1 NDug/L 11/27/06 5 18.4 NDug/L 05/23/07 1 ND NDug/L 11/15/07 1 ND NDug/L 05/28/08 1 ND NDug/L 11/20/08 1 12 ND
ug/L 05/28/09 1 ND ND
ug/L 11/12/09 1 8.6 J ND
ug/L 05/27/10 1 ND ND
ug/L 11/15/10 1 22 J ND
ug/L 05/12/11 1 ND ND
ug/L 11/17/11 1 13 ND
ug/L 05/10/12 1 7.3 NDug/L 11/09/12 1 5.2 NDug/L 05/15/13 1 7.2 NDug/L 11/13/13 1 ND NDug/L 05/14/14 1 4.0 J NDug/L 11/19/14 1 ND ND
2-Hexanone ug/L 05/23/07 50 ND ND
ug/L 11/15/07 50 ND ND
ug/L 05/29/08 50 ND ND
ug/L 11/20/08 50 ND ND
ug/L 05/28/09 50 ND ND
ug/L 11/12/09 50 ND ND
ug/L 05/27/10 50 ND ND
ug/L 11/15/10 50 ND ND
ug/L 05/12/11 50 ND ND
ug/L 11/17/11 50 ND NDug/L 05/10/12 50 6.7 J NDug/L 11/09/12 50 ND NDug/L 05/15/13 50 ND NDug/L 11/13/13 50 ND NDug/L 05/14/14 50 ND NDug/L 11/19/14 50 ND ND
2-Butanone ug/L 05/24/06 100 2100 ND
ug/L 11/27/06 100 8590 ND
ug/L 05/23/07 100 13000 ND
ug/L 11/15/07 100 ND ND
ug/L 05/28/08 100 1500 ND
ug/L 11/20/08 100 2500 ND
ug/L 05/28/09 100 8300 NDug/L 11/12/09 100 800 NDug/L 05/27/10 100 ND NDug/L 11/15/10 100 11000 NDug/L 05/12/11 100 ND NDug/L 11/17/11 100 3200 ND
ug/L 05/10/12 100 ND ND
ug/L 11/09/12 100 ND ND
ug/L 05/15/13 100 48 J ND
ug/L 11/13/13 100 2700 ND
ug/L 05/14/14 100 1300 ND
ug/L 11/19/14 100 ND ND
4-Methyl-2-pentanone ug/L 11/27/06 100 121 NDug/L 05/23/07 100 150 NDug/L 11/15/07 100 ND NDug/L 05/28/08 100 ND NDug/L 11/20/08 100 50 J NDug/L 05/28/09 100 ND NDug/L 11/12/09 100 ND ND
ug/L 05/27/10 100 ND ND
ug/L 11/15/10 100 99 J ND
ug/L 05/12/11 100 ND ND
ug/L 11/17/11 100 30 J ND
ug/L 05/10/12 100 42 J ND
ug/L 11/09/12 100 23 J ND
ug/L 05/15/13 100 56 J NDug/L 11/13/13 100 29 J NDug/L 05/14/14 100 31 J NDug/L 11/19/14 100 ND ND
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
Toluene ug/L 11/27/06 5 95.4 NDug/L 05/23/07 1 20 NDug/L 11/15/07 1 ND NDug/L 05/28/08 1 ND NDug/L 11/20/08 1 19 NDug/L 05/28/09 1 27 J ND
ug/L 11/12/09 1 12 J ND
ug/L 05/27/10 1 ND ND
ug/L 11/15/10 1 46 J ND
ug/L 05/12/11 1 ND ND
ug/L 11/17/11 1 16 ND
ug/L 05/10/12 1 12 ND
ug/L 11/09/12 1 13 NDug/L 05/15/13 1 14 NDug/L 11/13/13 1 11 J NDug/L 05/14/14 1 6.6 J NDug/L 11/19/14 1 6.3 J NDTrichloroetheneug/L 05/23/07 1 ND ND
ug/L 11/15/07 1 9.6 ND
ug/L 05/28/08 1 ND ND
ug/L 11/20/08 1 ND ND
ug/L 05/28/09 1 ND ND
ug/L 11/12/09 1 ND ND
ug/L 05/27/10 1 ND ND
ug/L 11/15/10 1 ND NDug/L 05/12/11 1 ND NDug/L 11/17/11 1 ND NDug/L 05/10/12 1 ND NDug/L 11/09/12 1 ND NDug/L 05/15/13 1 ND NDug/L 11/13/13 1 ND ND
ug/L 05/14/14 1 ND ND
ug/L 11/19/14 1 ND ND
Xylenes (Total)ug/L 05/24/06 5 8.9 ND
ug/L 11/27/06 5 38.7 ND
ug/L 05/23/07 4 ND ND
ug/L 11/15/07 5 ND ND
ug/L 05/28/08 5 ND NDug/L 11/20/08 5 26 NDug/L 05/28/09 5 22 J NDug/L 11/12/09 5 12 J NDug/L 05/27/10 5 ND NDug/L 11/15/10 5 28 J ND
ug/L 05/12/11 5 ND ND
ug/L 11/17/11 5 32 ND
ug/L 05/10/12 5 18 ND
ug/L 11/09/12 5 12 J ND
ug/L 05/15/13 5 15 ND
ug/L 11/13/13 5 ND ND
ug/L 05/14/14 5 5.7 J NDug/L 11/19/14 5 4.6 J NDNitrate as N mg/L 05/24/06 --0.14 NDmg/L 11/27/06 --0.18 NDmg/L 05/23/07 --0.51 NDmg/L 11/15/07 10 ND --mg/L 05/28/08 10 ND ND
mg/L 11/20/08 10 ND ND
mg/L 05/28/09 10 ND ND
mg/L 11/12/09 10 ND --
mg/L 05/27/10 10 ND ND
mg/L 11/15/10 10 ND -
mg/L 05/12/11 10 ND ND
mg/L 11/17/11 10 ND -mg/L 05/10/12 10 ND --mg/L 11/09/12 10 ND -mg/L 05/15/13 10 0.8 J NDmg/L 11/13/13 10 ND -mg/L 05/14/14 10 ND ND
mg/L 11/19/14 10 ND ND
January 2015 Page 8 of 10 Project No. 0739603714.100
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
Sulfate as SO4 mg/L 05/24/06 --10.9 NDmg/L 11/27/06 5 ND NDmg/L 05/23/07 250 140 2.5 Jmg/L 11/15/07 250 26 J NDmg/L 05/28/08 250 19 J NDmg/L 11/20/08 250 5.2 J ND
mg/L 05/28/09 250 2.7 J ND
mg/L 11/12/09 250 9.5 J ND
mg/L 05/27/10 250 25 J ND
mg/L 11/15/10 250 6.6 J ND
mg/L 05/12/11 250 12 J ND
mg/L 11/17/11 250 ND ND
mg/L 05/10/12 250 160 J NDmg/L 11/09/12 250 7.6 J NDmg/L 05/15/13 250 8.7 J NDmg/L 11/13/13 250 4.3 J NDmg/L 05/14/14 250 280 NDmg/L 11/19/14 250 32 J ND
Biochemical Oxygen Demand mg/L 05/24/06 --920 --
mg/L 11/27/06 --1849 --
mg/L 05/23/07 --2500 --
mg/L 11/15/07 --540 ND
mg/L 05/28/08 --1700 ND
mg/L 11/20/08 -->230 ND
mg/L 05/28/09 --560 NDmg/L 11/12/09 --340 NDmg/L 05/27/10 --ND NDmg/L 11/15/10 --> 2300 NDmg/L 05/12/11 --55 NDmg/L 11/17/11 --390 NDmg/L 05/10/12 --240 ND
mg/L 11/09/12 --230 ND
mg/L 05/15/13 --630 ND
mg/L 11/13/13 -->750 ND
mg/L 05/14/14 --420 ND
mg/L 11/19/14 --290 ND
Chemical Oxygen Demand mg/L 05/24/06 --3901 --
mg/L 11/27/06 --2685 --mg/L 05/23/07 --9000 --mg/L 11/15/07 --4800 NDmg/L 05/28/08 --4600 NDmg/L 11/20/08 --4300 NDmg/L 05/28/09 --5500 ND
mg/L 11/12/09 --5000 ND
mg/L 05/27/10 --2700 ND
mg/L 11/15/10 --6300 ND
mg/L 05/12/11 --2700 ND
mg/L 11/17/11 --4400 ND
mg/L 05/10/12 --5100 ND
mg/L 11/09/12 --3500 NDmg/L 05/15/13 --5900 NDmg/L 11/13/13 --5700 NDmg/L 05/14/14 --5000 NDmg/L 11/19/14 --5900 NDPhosphorusmg/L 05/24/06 --2.56 NDmg/L 11/27/06 --0.61 ND
mg/L 05/23/07 --1.9 ND
mg/L 11/15/07 --3.0 ND
mg/L 05/28/08 --2.6 ND
mg/L 11/20/08 --3.4 ND
mg/L 05/28/09 --3.9 ND
mg/L 11/12/09 --5.0 ND
mg/L 05/27/10 --2.5 NDmg/L 11/15/10 --3.1 NDmg/L 05/12/11 --1.3 NDmg/L 11/17/11 --3.8 NDmg/L 05/10/12 --4.2 NDmg/L 11/09/12 --2.6 ND
mg/L 05/15/13 --5.1 ND
mg/L 11/13/13 --5.6 ND
mg/L 05/14/14 --5.4 ND
mg/L 11/19/14 --7.0 ND
January 2015 Page 9 of 10 Project No. 0739603714.100
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Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
pH (field)S.U.05/24/06 --7.2 --S.U.11/20/06 --7.0 --S.U.05/23/07 --7.80 --S.U.11/15/07 --8.38 --S.U.05/28/08 --8.08 --S.U.11/20/08 --7.97 --
S.U.05/28/09 --7.82 --
S.U.11/12/09 --8.08 --
S.U.05/26/10 --8.30 --
S.U.11/15/10 --7.89 --
S.U.05/09/11 --8.35 --
S.U.11/17/11 --7.82 --
S.U.05/10/12 --8.39 --S.U.11/09/12 --8.06 --S.U.05/15/13 --7.91 --S.U.11/13/13 --8.16 --S.U.05/14/14 --8.34 --S.U.11/19/14 --9.19 --
Specific Conductance (field)µS/cm 05/24/06 --9980 --
µS/cm 11/20/06 --4280 --
µS/cm 05/23/07 --2240 --
µS/cm 11/15/07 --2210 --
µS/cm 05/28/08 --1080 --
µS/cm 11/20/08 --2050 --
µS/cm 05/28/09 --2216 --µS/cm 11/12/09 --1101 --µS/cm 05/26/10 --1847 --µS/cm 11/15/10 --1854 --µS/cm 05/09/11 --1824 --uS/cm 11/17/11 --1950 --uS/cm 05/10/12 --1917 --
µS/cm 11/09/12 --1357 --
µS/cm 05/15/13 --25990 --
uS/cm 11/13/13 --18021 --
µS/cm 05/14/14 --21715 --
µS/cm 11/19/14 --20440 --
Temperature (field)°C 05/24/06 --23 --
°C 11/20/06 --19 --°C 05/23/07 --28.83 --°C 11/15/07 --14.55 --°C 05/28/08 --24.78 --°C 11/20/08 --18.97 --°C 05/28/09 --25.44 --
°C 11/12/09 --15.56 --
°C 05/26/10 --34.88 --
°C 11/15/10 --19.94 --
°C 05/09/11 --18.24 --
°C 11/17/11 --23.42 --
°C 05/10/12 --17.99 --
°C 11/09/12 --15.21 --°C 05/15/13 --28.72 --°C 11/13/13 --13.7 --°C 05/14/14 --30.4 --°C 11/19/14 --13.4 --
January 2015 Page 10 of 10 Project No. 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Tables\Sampson County Active MSW Landfill Nov 2014.xlsx
Detected Monitoring
Constituent/Parameter Units Sample Date
SWS
Reporting
Limit
TABLE 10
Summary of Detected Leachate Parameters
Sampson County Active MSW Landfill, Permit No. 82-02
Leachate Blanks
Turbidity (field)NTU 05/23/07 --206 NDNTU11/15/07 --421 NDNTU05/28/08 --963 --NTU 11/20/08 --52.7 --NTU 05/28/09 --NM --NTU 11/12/09 --40.1 --
NTU 05/26/10 ------
NTU 11/15/10 ------
NTU 05/09/11 ------
NTU 11/17/11 ------
NTU 05/10/12 -->1000 --
NTU 11/09/12 --51.7 --
NTU 05/15/13 --98.2 --NTU 11/13/13 --86.6 --NTU 05/14/14 --278 --NTU 11/09/14 --357 --
Notes:
mg/L =milligrams per liter
ug/L =micrograms per liter
S.U. =Standard Units
ND =Not detected at the stated reporting limit
NM =Not Measured
J =Estimated value
µS/cm=microsiemens per centimeterNTU =Nephelometric Turbidity Units°C =degrees Celsius-- =no data available or no limit establishedBlanks =field, trip and/or method blanksSWS Reporting Limit =NCPQL or lab-specific reporting limit prior to 2007 and NCSWSL starting on 01/18/071) Data prior to 2/28/07 provided by Richardson, Smith, Gardner and Associates.
2) The following dilutions were noted for the November 2014 event: antimony, thallium, phosphorous,
and VOCs by 10X.

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0739603714
PHASE
100
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SAMPSON COUNTY, LLC
ACTIVE LANDFILLS, PERMIT NO. 82-02
SAMPSON COUNTY, NC
WASTE INDUSTRIES USA, INC.
GROUNDWATER CONTOUR MAP
NOVEMBER 17-19, 2014
EXISTING 10-FOOT GROUND SURFACE CONTOUR
EXISTING 2-FOOT GROUND SURFACE CONTOUR
APPROXIMATE LIMITS OF WASTE
PROPERTY LINE
EXISTING ROAD
GROUNDWATER ELEVATION 5 FT CONTOURS
GROUNDWATER FLOW ARROW
MONITORING WELL AND IDENTIFICATION
LANDFILL GAS MONITORING PROBE
GRAVITY GROUNDWATER INTERCEPT LOCATION
SURFACE WATER MONITORING POINT
NOT AVAILABLE
LEGEND
NOTES
140
1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET
2. GROUNDWATER SURFACE CONTOUR INTERVAL = 5 FEET
3. GROUNDWATER ELEVATIONS MEASURED ON NOVEMBER 17-19, 2014.
4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND
EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD
CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL
CONDITIONS.
5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION.
THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A
CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS
GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO
THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS.
6. SW-1S IS THE UPSTREAM SAMPLING POINT FOR THE CLOSED LANDFILL ON THE
SOUTHERN PROPERTY (PERMIT 82-01). SW-1 IS LOCATED OFF THE MAPPED AREA TO THE
NORTHEAST AS SHOWN.
7. MONITORING WELLS MW-1N, MW-2N, MW-3N AND MW-4N ARE FOR THE C&D LANDFILL.
8. MW-107D IS NOT PART OF THE APPROVED MONITORING NETWORK AND THE
GROUNDWATER ELEVATIONS WAS NOT USED IN THE CONSTRUCTION OF THE CONTOUR
MAP.
9. BASE MAP PROVIDED BY G.N. RICHARDSON & ASSOCIATES, INC. OVERALL SITE BASE
TOPOGRAPHY PROVIDED BY GEODATA CORP, BASED ON MARCH 10, 2014 AERIAL SURVEY.
10. COORDINATE SYSTEM IS N.C. STATE PLANE GRID.
VICINITY MAP
1:121,500
SITE

APPENDIX A
GROUNDWATER, SURFACE WATER, AND LEACHATE SAMPLING LOGS

APPENDIX B
NOVEMBER 2014 GROUNDWATER, SURFACE WATER, AND LEACHATE CERTIFICATE-
OF-ANALYSIS, CHAIN-OF-CUSTODY FORMS AND LABORATORY DATA REVIEWS

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GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 1 of 3

Project Name: Sampson County Active MSW Landfill
Project Reference Number: 073-9603714.100
Sampling Event Date: November 17-19, 2014
Review Date: December 31, 2014 Initials: AS
Report #: C414174

Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation
should follow the applicable item.
Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain-of-custody form, and
laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United
States Environmental Protection Agency documents:
• Region III Modifications to Functional Guidelines for Organic Data Review Multi-Media, Multi-Concentration, September 1994;
• Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating
Inorganic Analyses, April 1993; and
• Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998.
COMPLIANCE ANALYTE LIST(S) (check all that apply)
NC Closed Facility/C & D List
X NC Appendix I
NC Appendix I + Detects
NC Appendix II
NC Subtitle D Leachate List

Other: MW-100B sampled for NC Appendix I metals only.
1.0 CHAIN OF CUSTODY (COC) REVIEW
AS COC was properly signed by all parties.
AS Correct project name and number are on the form.
AS Sample receipt condition at laboratory was acceptable.
AS Each sample and blank submitted for analysis appears in the report.

2.0 SAMPLE HOLDING TIMES
AS Holding times for extraction and/or analysis were met for each analytical method (see below for reference).

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

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

3.0 LABORATORY QUALITY CONTROL REVIEW
AS Laboratory analyzed at least one internal blank for each method, where applicable.
AS Laboratory blank is interference-free.
AS Surrogate recoveries are provided for each analytical method, where applicable.
AS Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range).
AS MS/MSD/LCS data results are provided for each analytical method.
AS MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range).
4.0 ANALYTE LISTS/METHODS
AS The proper number of constituents are present for each analyte list as identified above
(including detects where applicable).
AS Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING
AS All analytical reporting associated with the event was performed by the contracted lab.
AS Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been
‘flagged’ with a ‘B’ where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the
concentration in the blank (or 10X for commonly detected laboratory contaminants-acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below.
AS It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the
dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor.
AS The report provides the reporting limit for each constituent.

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 3 of 4

AS The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Approved QLs). Those that are not reported correctly are listed below (by
constituent) with the proper reporting limit listed beside them. State if the reporting limit error
is due to dilutions. AS No inorganic or organic constituents were reported above their respective NC 2L Drinking
Water Standards or Groundwater Protection Standards (GWPS) in wells or field/equipment/trip blanks or Surface Water Standards for surface points. MW-103A
Cobalt @ 1.16 (J) ug/L (GWPS = 1 ug/L)
MW-104 Cobalt @ 11.7 ug/L (GWPS = 1 ug/L)
MW-105A
Cobalt @ 3.97 (J) ug/L (GWPS = 1 ug/L) Vanadium @ 11.1 (J) ug/L (GWPS = 0.3 ug/L)
MW-106
Cobalt @ 1.74 (J) ug/L (GWPS = 1 ug/L)
MW-107S Cobalt @ 76.0 ug/L (GWPS = 1 ug/L)
MW-108
Cobalt @ 22.3 ug/L (GWPS = 1 ug/L) Vanadium @ 8.34 (J) ug/L (GWPS = 0.3 ug/L)
GGI Outfall 2
Cobalt @ 3.22 (J) ug/L (GWPS = 1 ug/L) AS No inorganic or organic constituents were detected in a well or surface water point at quantified concentrations outside of their historical range (more than 5X previous
concentrations or first-time detections).
AS Other report issues/Communications with laboratory/etc.:
• MW-107S and MW-108 were processed at dilutions for the analysis of Antimony and Thallium, due to matrix interference, resulting in elevated reporting limits.

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Page 1 of 1
GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 1 of 3

Project Name: Sampson County – Active C&D Wells
Project Reference Number: 0739-603714.100
Sampling Event Date: November 17, 2014
Review Date: December 31, 2014 Initials: AS
Report #: C414175
Person(s) performing the review are to initial each item on this form as acknowledgement of data
acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item.

Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain-of-custody form, and
laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United
States Environmental Protection Agency documents:
• Region III Modifications to Functional Guidelines for Organic Data Review Multi-Media, Multi-
Concentration, September 1994;
• Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and
• Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply)

X NC Closed Facility/C & D List
NC Appendix I
NC Appendix I + Detects
NC Appendix II
NC Subtitle D Leachate List

Other:

1.0 CHAIN OF CUSTODY (COC) REVIEW AS COC was properly signed by all parties.
AS Correct project name and number are on the form.
AS Sample receipt condition at laboratory was acceptable.
AS Each sample and blank submitted for analysis appears in the report.
2.0 SAMPLE HOLDING TIMES

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

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 2 of 3

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

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

 The spike recoveries of Chloride and Sulfate were outside of control limits for the MS and MSE samples. The QC batch was approved based on acceptable LCS recovery on these analytes.
4.0 ANALYTE LISTS/METHODS

AS The proper number of constituents are present for each analyte list as identified above
(including detects where applicable).
AS Proper EPA SW-846 analytical methods were used for analysis.
5.0 DATA REPORTING

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

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 3 of 3

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

• MW-3N o Chloride = 2x o Sulfate = 2x o Total Alkalinity = 5x
AS The report provides the reporting limit for each constituent.
AS The results were reported at or below their proper reporting limits (e.g., NC Solid Waste
Section Approved QLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error
is due to dilutions.
AS No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GWPS) in wells or
field/equipment/trip blanks or Surface Water Standards in surface points.
MW-1N Cobalt @ 1.92 ug/L (GWPS = 1 ug/L)
MW-2N: Cobalt @ 1.17 ug/L (GWPS = 1 ug/L) Iron @ 9,570 ug/L (NC2L = 300 ug/L)
Manganese @ 98.3 ug/L (NC2L = 50 ug/L)
MW-3N: Iron @ 1,980 ug/L (NC 2L = 300 ug/L) Manganese @ 66.5 ug/L (NC2L = 50 ug/L)
MW-4N: Cobalt @ 2.10 ug/L (J) (GWPS = 1 ug/L)
MW-5AN: Cobalt @ 9.58 ug/L J (GWPS = 1 ug/L)
Iron @ 1,080 ug/L (NC2L = 300 ug/L) Vanadium @ 3.82 ug/L (J) (GWPS = 0.3 ug/L)
MW-5BN: Cobalt @ 1.40 ug/L (J) (GWPS = 1 ug/L)
Iron @ 2,160 ug/L (NC2L = 300 ug/L)
AS No inorganic or organic constituents were detected in a well or surface water point at
quantified concentrations outside of their historical range (more than 5X previous concentrations or first-time detections).
AS Other report issues/Communications with laboratory/etc.:

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Page 1 of 1
GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 1 of 3

Project Name: Sampson County Active MSW Landfill
Project Reference Number: 073-9603714.100
Sampling Event Date: November 18, 2014
Review Date: December 31, 2014 Initials: AS
Report #: C414176

Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation
should follow the applicable item.
Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain-of-custody form, and
laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United
States Environmental Protection Agency documents:
• Region III Modifications to Functional Guidelines for Organic Data Review Multi-Media, Multi-Concentration, September 1994;
• Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating
Inorganic Analyses, April 1993; and
• Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998.
COMPLIANCE ANALYTE LIST(S) (check all that apply)
NC Closed Facility/C & D List
X NC Appendix I
NC Appendix I + Detects
NC Appendix II
NC Subtitle D Leachate List

Other:
1.0 CHAIN OF CUSTODY (COC) REVIEW
AS COC was properly signed by all parties.
AS Correct project name and number are on the form.
AS Sample receipt condition at laboratory was acceptable.
AS Each sample and blank submitted for analysis appears in the report.

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

2.0 SAMPLE HOLDING TIMES

AS Holding times for extraction and/or analysis were met for each analytical method (see below for reference).
Review Criteria
Method Analytes Holding Time
SW-846 Method 8260 and 8011 VOCs 14 days
SW-846 Methods 8270, 8080, 8081,
8082, and 8151
SVOCs, PCBs, pesticides
and herbicides
7 days for extraction, 40 days
from extraction for analysis
SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements)
SW-846 Method 7470 Mercury 28 days
SW-846 Method 376.1 Sulfide 7 days
SW-846 Method 9010 Cyanide 14 days
EPA Method 300 Nitrate/Sulfate 48 hours/28 days
EPA Method 405.1 BOD 48 hours
EPA Method 410.4 COD 28 days
EPA Method 365.4 Phosphorous 28 days
3.0 LABORATORY QUALITY CONTROL REVIEW
AS Laboratory analyzed at least one internal blank for each method, where applicable.
AS Laboratory blank is interference-free.
AS Surrogate recoveries are provided for each analytical method, where applicable.
AS Surrogate recoveries for each method are within the acceptable limits (i.e., at least
50% of the surrogates were within range).
AS MS/MSD/LCS data results are provided for each analytical method.
AS MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of
the 3 were within range).
4.0 ANALYTE LISTS/METHODS
AS The proper number of constituents are present for each analyte list as identified above (including detects where applicable).
AS Proper EPA SW-846 analytical methods were used for analysis.
5.0 DATA REPORTING
AS All analytical reporting associated with the event was performed by the contracted lab.
AS Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been
‘flagged’ with a ‘B’ where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the
concentration in the blank (or 10X for commonly detected laboratory contaminants-acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If
flags need to be added for samples, also list below.

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 3 of 4

AS It is clear from the laboratory report that samples have or have not been diluted during
analysis, and if the samples have been diluted, the result is reported as a multiple of the
dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor.
AS The report provides the reporting limit for each constituent.
AS The results were reported at or below their proper reporting limits (e.g., NC Solid Waste
Section Approved QLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error
is due to dilutions.
AS No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Groundwater Protection Standards (GWPS) in wells or
field/equipment/trip blanks or Surface Water Standards for surface points.
AS No inorganic or organic constituents were detected in a well or surface water point at
quantified concentrations outside of their historical range (more than 5X previous concentrations or first-time detections).

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

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Page 1 of 1
GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 1 of 3

Project Name: Sampson County Active Landfill – Leachate
Project Reference Number: 0739-603713.100
Sampling Event Date: November 18, 2014
Review Date: December 31, 2014 Initials: AS
Report #: C413996 & C414844(pre-treatment), C413985(post-treatment)
Person(s) performing the review are to initial each item on this form as acknowledgement of data
acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item.

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

Other:

1.0 CHAIN OF CUSTODY (COC) REVIEW AS COC was properly signed by all parties.
AS Correct project name and number are on the form.
AS Sample receipt condition at laboratory was acceptable.
AS Each sample and blank submitted for analysis appears in the report.
2.0 SAMPLE HOLDING TIMES

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

GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 2 of 3

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

3.0 LABORATORY QUALITY CONTROL REVIEW
AS Laboratory analyzed at least one internal blank for each method, where applicable.
AS Laboratory blank is interference-free.
AS Surrogate recoveries are provided for each analytical method, where applicable.
AS Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range).
AS MS/MSD/LCS data results are provided for each analytical method.
AS MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range).
For Lab ID C413996 & C414844
• The recoveries of Ammonia and Cyanide were outside of control limits for the MS and/or MSD
samples, and precision between duplicate analyses for TSS exceeded acceptance criteria. The QC batches were approved based on acceptable LCS recovery of these analytes.
For Lab ID C413985
• The spike recoveries of 1,1-Dichloroethese, Benzene, Chlorobenzene, and Trichloroethene
were outside of control limits for the 8260B MS sample, and precision between duplicate spikes of these analytes and Toluene exceeded acceptance criteria. The QC batches were
approved based on acceptable LCS recovery of these analytes.
• The spike recoveries of Nitrite, Phosphorous, and Sulfate were outside of control limits for the MS and/or MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. 4.0 ANALYTE LISTS/METHODS
AS The proper number of constituents are present for each analyte list as identified above
(including detects where applicable).
AS Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING
AS All analytical reporting associated with the event was performed by the contracted lab.
AS Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been
‘flagged’ with a ‘B’ where detected in other samples as appropriate and a laboratory narrative
GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL
LABORATORY DATA REVIEW Page 3 of 3

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.

AS It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the
dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor.
For Lab ID C413996 & C414844
• Chloride: DF = 100x
• Total Alkalinity as CaCO3: DF = 50x
• Molybdenum: DF = 5x
• Total Kjeldahl Nitrogen: DF = 100x
• Ammonia: DF = 1000x
For Lab ID C413985
• Antimony: DF = 10x
• Phosphorus: DF = 10x
• Toluene: DF = 10x
• Xylenes: DF = 10x

AS The report provides the reporting limit for each constituent.
AS The results were reported at or below their proper reporting limits (e.g., NC Solid Waste Section Approved QLs). Those that are not reported correctly are listed below (by
constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions.
N/A No inorganic or organic constituents were reported above their respective NC 2L Drinking
Water Standards or Groundwater Protection Standards in field/equipment/trip blanks or Surface Water Standards in surface points.
AS No quantifiable inorganic or organic constituents were detected in a well or surface water point
at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections).
AS Other report issues/Communications with laboratory/etc.:
For Lab ID C413996 & C414844
• Sample, L-1, was processed at a dilution for the Aluminum and Molybdenum analyses due to high levels of non-target analytes, resulting in elevated reporting limits For Lab ID C413985
• Sample, L-1, was processed at a dilution for the 8260B analysis due to matrix interference
(foaming), resulting in elevated reporting limits

APPENDIX C
STATISTICAL EVALUATION WORKSHEETS & SUMMARY TABLE

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G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Stats Summary MSW Wells Table November 2014.xls
MW-104 MW-105A MW-106 MW-107S MW-108
GGI
Outfall 1
GGI
Outfall 2
Interwell Nonparametric Prediction Interval 5.52
Intrawell MW-104 Parameteric Tolerance Interval 204
Intrawell MW-107S Nonparametric Prediction Interval 139
Intrawell MW-108 Parameteric Tolerance Interval 48.6
Notes:1. Shaded values represent confirmed statistical significant increases (SSIs) over background concentrations.
2. Statistical worksheets are provided in Appendix C.
3. ug/L = micrograms per liter; ND = not detected at the laboratory detection limit; J = estimated concentration below the Solid Waste Section Limit; -- = no data available
Cobalt
Prediction
IntervalStatistical Evaluation Method
Summary of Statistical Analysis
Sampson County Active MSW Landfill, Permit No. 82-02
Sampson County, North Carolina
November 2014
Downgradient Monitoring Wells and Concentrations
Detected Monitoring
Constituent/Analytes
Reporting
Units
ND 3.22 Jug/L 11.7 3.97 J 1.74 J 76.0 22.3
January 2015 1 of 2 0739-603314.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Interwell\MSW Cobalt November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Analyte:Cobalt Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/L)(ug/L)
1 01/11/00 MW-100 5.52 5
2 02/21/00 MW-100 ND 5
3 10/10/00 MW-100 ND 10
4 07/12/01 MW-100 ND 10
5 10/24/01 MW-100 ND 10
6 05/28/02 MW-100 ND 10
7 11/05/02 MW-100 ND 10
8 05/29/03 MW-100 ND 10
9 05/25/04 MW-100 ND 10
10 11/23/04 MW-100 ND 10
11 05/22/07 MW-100A ND 10
12 11/13/07 MW-100A ND 10
13 05/29/08 MW-100A ND 10
14 11/17/08 MW-100A ND 10
15 05/26/09 MW-100A 1.8 J 10
16 11/10/09 MW-100A 1.75 J 10
17 05/26/10 MW-100B ND 10
18 11/15/10 MW-100B ND 10
19 05/09/11 MW-100B 1.51 J 10
20 11/14/11 MW-100B 2.43 J 10
21 05/07/12 MW-100B 1.15 J 10
22 11/05/12 MW-100B 1.66 J 10
23 05/13/13 MW-100B ND 10
24 11/11/13 MW-100B ND 10
25 05/12/14 MW-100B ND 10
26 11/17/14 MW-100B ND 10
27 11/05/03 MW-102A ND 10
28 05/25/04 MW-102A ND 10
29 11/23/04 MW-102A ND 10
30 05/16/05 MW-102A ND 10
31 11/25/05 MW-102A ND 10
32 05/24/06 MW-102A ND 10
33 11/20/06 MW-102A ND 10
34 05/22/07 MW-102A ND 10
35 11/13/07 MW-102A ND 10
36 05/29/08 MW-102A ND 10
37 11/17/08 MW-102A ND 10
38 05/26/09 MW-102A ND 10
39 11/10/09 MW-102A ND 10
40 05/26/10 MW-102A ND 10
41 11/15/10 MW-102A ND 10
42 05/09/11 MW-102A ND 10
43 11/14/11 MW-102A 1.12 J 10
44 05/07/12 MW-102A ND 10
45 11/05/12 MW-102A 1.22 J 10
January 2015 2 of 2 0739-603314.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Interwell\MSW Cobalt November 2014.xlsx
Analyte:Cobalt Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/L)(ug/L)
46 05/13/13 MW-102A ND 10
47 11/11/13 MW-102A ND 10
48 05/12/14 MW-102A ND 10
49 11/17/14 MW-102A ND 10
50 11/05/03 MW-103A ND 10
51 05/25/04 MW-103A ND 10
52 11/23/04 MW-103A ND 10
53 05/16/05 MW-103A ND 10
54 11/25/05 MW-103A ND 10
55 05/24/06 MW-103A ND 10
56 11/20/06 MW-103A ND 10
57 05/22/07 MW-103A ND 10
58 11/13/07 MW-103A ND 10
59 05/29/08 MW-103A ND 10
60 11/17/08 MW-103A ND 10
61 05/26/09 MW-103A 0.8 J 10
62 11/10/09 MW-103A ND 10
63 05/26/10 MW-103A ND 10
64 11/15/10 MW-103A ND 10
65 05/09/11 MW-103A ND 10
66 11/14/11 MW-103A 1.39 J 10
67 05/07/12 MW-103A ND 10
68 11/05/12 MW-103A 2.18 J 10
69 05/13/13 MW-103A 1.93 J 10
70 11/11/13 MW-103A 1.60 J 10
71 05/12/14 MW-103A ND 10
72 11/17/14 MW-103A 1.16 J 10
Number of Data:72
Number of Truncated Data:57
Percentage of Truncated Data:79%
Nonparametric Prediction Interval:5.52 ug/L
January 2015 Page 1 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Analyte:Cobalt (Intra-well MW-104)Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/L)(ug/L)
1 01/11/00 MW-104 ND 5
2 10/10/00 MW-104 ND 10
3 07/12/01 MW-104 ND 10
4 10/24/01 MW-104 ND 10
5 05/28/02 MW-104 ND 10
6 11/05/02 MW-104 ND 10
7 05/29/03 MW-104 14 10
8 11/05/03 MW-104 22 10
9 05/25/04 MW-104 20 10
10 11/23/04 MW-104 14 10
11 05/16/05 MW-104 ND 10
12 11/25/05 MW-104 ND 10
13 05/24/06 MW-104 ND 10
14 11/20/06 MW-104 ND 10
15 05/22/07 MW-104 20.2 10
16 11/13/07 MW-104 11.1 10
17 05/29/08 MW-104 58.4 10
18 11/17/08 MW-104 21.6 10
19 05/26/09 MW-104 35.3 10
20 11/10/09 MW-104 39.0 10
21 05/26/10 MW-104 67.8 10
22 11/15/10 MW-104 46.2 10
23 05/09/11 MW-104 4.21 J 10
24 11/14/11 MW-104 16.1 10
25 05/07/12 MW-104 9.55 J 10
26 11/05/12 MW-104 12.4 10
27 05/13/13 MW-104 8.59 J 10
28 11/11/13 MW-104 19.3 10
29 05/12/14 MW-104 8.49 J 10
Number of Data 29
Number of Truncated Data 10
Percentage of Truncated Data 34%
204 ug/LUpper Tolerance Interval:
January 2015 Page 2 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739-603714
Date:1/9/15
Probability Plots to determine the distribution of Cobalt (Intra-well MW-104)
Complete the following table where:
i = ordered value of sample, arranged from smallest to largest
X(i) = sample values arranged from smallest to largest
LN[X(i)] = Natural Log Value of sample concentrations arranged from
smallest to largest
[i/(n+1)] = Cumulative probability
n = number of samples = 19
X(i)LN[X(i)]i Rank [Rank/(n+1)]Quantiles
4.21 1.44 1 1 0.050 -1.64
8.49 2.14 2 2 0.100 -1.28
8.59 2.15 3 3 0.150 -1.04
9.55 2.26 4 4 0.200 -0.84
11.10 2.41 5 5 0.250 -0.67
12.40 2.52 6 6 0.300 -0.52
14.00 2.64 7 7 0.350 -0.39
14.00 2.64 8 8 0.400 -0.25
16.10 2.78 9 9 0.450 -0.13
19.30 2.96 10 10 0.500 0.00
20.00 3.00 11 11 0.550 0.13
20.20 3.01 12 12 0.600 0.25
21.60 3.07 13 13 0.650 0.39
22.00 3.09 14 14 0.700 0.52
35.30 3.56 15 15 0.750 0.67
39.00 3.66 16 16 0.800 0.84
46.20 3.83 17 17 0.850 1.04
58.40 4.07 18 18 0.900 1.28
67.80 4.22 19 19 0.950 1.64
January 2015 Page 3 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739-603714
Date:01/09/15
Probability Plots to determine the distribution of Cobalt (Intra-well MW-104)
R² = 0.8355
-2.00
-1.50
-1.00
-0.50
0.00
0.50
1.00
1.50
2.00
0.00 20.00 40.00 60.00 80.00
Qu
a
n
t
i
l
e

Concentration, Micrograms per Liter
Normal Probability Plot
Cobalt Concentrations
R² = 0.9742
-2.00
-1.50
-1.00
-0.50
0.00
0.50
1.00
1.50
2.00
0.00 1.00 2.00 3.00 4.00 5.00
Qu
a
n
t
i
l
e

Log Normal Concentrations
Log Normal Probability Plot
Cobalt Concentrations
January 2015 Page 4 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739-603714
Date:1/9/15
Determination of reported background value as an outlier
Analyte:Cobalt (Intra-well MW-104)
Background Data Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/l)(ug/l)
1 1/11/00 MW-104 ND 5
2 10/10/00 MW-104 ND 10
3 7/12/01 MW-104 ND 10
4 10/24/01 MW-104 ND 10
5 5/28/02 MW-104 ND 10
6 11/5/02 MW-104 ND 10
7 5/29/03 MW-104 14 10
8 11/5/03 MW-104 22 10
9 5/25/04 MW-104 20 10
10 11/23/04 MW-104 14 10
11 5/16/05 MW-104 ND 10
12 11/25/05 MW-104 ND 10
13 5/24/06 MW-104 ND 10
14 11/20/06 MW-104 ND 10
15 5/22/07 MW-104 20.2 10
16 11/13/07 MW-104 11.1 10
17 5/29/08 MW-104 58.4 10
18 11/17/08 MW-104 21.6 10
19 5/26/09 MW-104 35.3 10
20 11/10/09 MW-104 39 10
21 5/26/10 MW-104 67.8 10
22 11/15/10 MW-104 46.2 10
23 5/9/11 MW-104 4.21 J 10
24 11/14/11 MW-104 16.1 10
25 5/7/12 MW-104 9.55 J 10
26 11/5/12 MW-104 12.4 10
27 5/13/13 MW-104 8.59 J 10
28 11/11/13 MW-104 19.3 10
29 5/12/14 MW-104 8.49 J 10
mean = 23.6
STD = 17.7
Note: All concentrations are micrograms per liter
Using the data listed above, form the statisitc Tn:
Tn = (Xn - mean) / STD
where:Xn = largest observed sample value
mean = mean of the background values
January 2015 Page 5 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
STD = standard deviation of the background values
For Xn = 67.8
mean = 23.6
STD = 17.7
Tn = 2.50
From Table 8 included in the Staistical Analysis of Groundwater Monitoring Data at
RCRA Facilities - Interim Final Guidance, the critical value for the given sample group is
Number of samples =29
Tc = 2.73
Since Tc>Tn, the sample result is not considered to be an outlier
January 2015 Page 6 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739-603714
Date:1/9/15
Shapiro Wilk Test Statistic (W) for normality of total Cobalt (Intra-well MW-104)
Complete the following table where
i = ordered value of sample, arranged from smallest to largest
X(i) = sample values arranged from smallest to largest
X(n-i+1) = sample values arranged from largest to smallest
A(n-i+1) = coefficient from table A-1, Statistical Analysis of Ground-Water
Data at RCRA Facilities
B(i) = summation of (X(n-i+1)-X(i))A(n-i+1)
i X(i)X(n-i+1)X(n-i+1) - X(i)A(n-i+1)B(i)
1 4.21 67.80 63.59 0.4808 30.57
2 8.49 58.40 49.91 0.3232 16.13
3 8.59 46.20 37.61 0.2561 9.63
4 9.55 39.00 29.45 0.2059 6.06
5 11.10 35.30 24.20 0.1641 3.97
6 12.40 22.00 9.6 0.1271 1.22
7 14.00 21.60 7.60 0.0932 0.71
8 14.00 20.20 6.2 0.0612 0.38
9 16.10 20.00 3.9 0.0303 0.12
10 19.30 19.30 0 0.0000 0.00
11 20.00 16.10
12 20.20 14.00
13 21.60 14.00
14 22.00 12.40
15 35.30 11.10
16 39.00 9.55
17 46.20 8.59
18 58.40 8.49
19 67.80 4.21
The test statistic W can be found using:
W = SQR[B/(SD x SQRT(n-1))]
where:B = summation of (X(n-i+1)-X(i))A(n-i+1)=68.80
SD = standard deviation of the data group =17.71
n = number of samples =19
W =0.838
Compare this value to the critical value in Table A-2 of Statistical Analysisof Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.901
and the calculated W = 0.838
Therefore the data is Non Normal
January 2015 Page 7 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739-603714
Date:1/9/15
Shapiro Wilk Test Statistic (W) for log normality of Cobalt (Intra-well MW-104)
Complete the following table where
i = ordered value of sample, arranged from smallest to largest
X(i) = sample values arranged from smallest to largest
X(n-i+1) = sample values arranged from largest to smallest
A(n-i+1) = coefficient from table A-1, Statistical Analysis of Ground-Water
Data at RCRA Facilities
B(i) = summation of (X(n-i+1)-X(i))A(n-i+1)
i X(i)X(n-i+1)X(n-i+1) - X(i)A(n-i+1)B(i)
1 1.44 4.22 2.7791 0.4808 1.3362
2 2.14 4.07 1.9284 0.3232 0.6233
3 2.15 3.83 1.6824 0.2561 0.4309
4 2.26 3.66 1.4070 0.2059 0.2897
5 2.41 3.56 1.1569 0.1641 0.1899
6 2.52 3.09 0.5733 0.1271 0.0729
7 2.64 3.07 0.4336 0.0932 0.0404
8 2.64 3.01 0.3666 0.0612 0.0224
9 2.78 3.00 0.2169 0.0303 0.0066
10 2.96 2.96 0.0000 0.0000 0.0000
11 3.00 2.78
12 3.01 2.64
13 3.07 2.64
14 3.09 2.52
15 3.56 2.41
16 3.66 2.26
17 3.83 2.15
18 4.07 2.14
19 4.22 1.44
The test statistic W can be found using:
W = SQR((B/SD x SQRT(n-1))
where:B = summation of (X(n-i+1)-X(i))A(n-i+1)=3.01
SD = standard deviation of the data group =0.719
n = number of samples =19
W =0.975
Compare this value to the critical value in Table A-2 of Statistical Analysisof Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.901
and the calculated W = 0.975
Therefore the data set is Log Normal
January 2015 Page 8 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739-603714
Date:1/9/15
Aitchison's Adjustment for Cobalt (Intra-well MW-104)
Background Values (positive detects only)
Concentration ln(conc)
Sample No.Sample Date Location (ug/l)
1 1/11/00 MW-104 ND ND
2 10/10/00 MW-104 ND ND
3 7/12/01 MW-104 ND ND
4 10/24/01 MW-104 ND ND
5 5/28/02 MW-104 ND ND
6 11/5/02 MW-104 ND ND
7 5/29/03 MW-104 14 2.64
8 11/5/03 MW-104 22 3.09
9 5/25/04 MW-104 20 3.00
10 11/23/04 MW-104 14 2.64
11 5/16/05 MW-104 ND ND
12 11/25/05 MW-104 ND ND
13 5/24/06 MW-104 ND ND
14 11/20/06 MW-104 ND ND
15 5/22/07 MW-104 20.2 3.01
16 11/13/07 MW-104 11.1 2.41
17 5/29/08 MW-104 58.4 4.07
18 11/17/08 MW-104 21.6 3.07
19 5/26/09 MW-104 35.3 3.56
20 11/10/09 MW-104 39 3.66
21 5/26/10 MW-104 67.8 4.22
22 11/15/10 MW-104 46.2 3.83
23 5/9/11 MW-104 4.21 1.44
24 11/14/11 MW-104 16.1 2.78
25 5/7/12 MW-104 9.55 2.26
26 11/5/12 MW-104 12.4 2.52
27 5/13/13 MW-104 8.59 2.15
28 11/11/13 MW-104 19.3 2.96
29 5/12/14 MW-104 8.49 2.14
Mean of detected values =2.92
Standard Deviation of detected values =0.72
The adjusted mean can be found using
M(a) = (1-d/n) x M
where:d = number non- detected values =10
n = total number samples =29
M = mean detected values =2.92
January 2015 Page 9 of 13 0739603714.100
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M(a)=1.91
The adjusted standard deviation squared may be found using
STD(a) = (n-(d+1)S)/n-1) + d(n-d)MM/n(n-1)
where:n = total number samples =29
d = number non-detected values =10
S = std deviation of detected values squared =0.52
MM = mean of detected values squared =8.51
STD(a)=2.32
and the adjusted standard deviation is then
S(a) = SQRT(STD(a))=1.52
January 2015 Page 10 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739-603714
Date:1/9/15
Parametric Prediction Interval for Aitchison's adjusted data
Analyte:Cobalt (Intra-well MW-104)
Background Data Quantitation
Concentration Limit ln(Cocentration)
Sample No.Sample Date Location (ug/l)(ug/l)
1 1/11/00 MW-104 ND 5 ND
2 10/10/00 MW-104 ND 10 ND
3 7/12/01 MW-104 ND 10 ND
4 10/24/01 MW-104 ND 10 ND
5 5/28/02 MW-104 ND 10 ND
6 11/5/02 MW-104 ND 10 ND
7 5/29/03 MW-104 14 10 2.639
8 11/5/03 MW-104 22 10 3.091
9 5/25/04 MW-104 20 10 2.996
10 11/23/04 MW-104 14 10 2.639
11 5/16/05 MW-104 ND 10 ND
12 11/25/05 MW-104 ND 10 ND
13 5/24/06 MW-104 ND 10 ND
14 11/20/06 MW-104 ND 10 ND
15 5/22/07 MW-104 20.2 10 3.006
16 11/13/07 MW-104 11.1 10 2.407
17 5/29/08 MW-104 58.4 10 4.067
18 11/17/08 MW-104 21.6 10 3.073
19 5/26/09 MW-104 35.3 10 3.564
20 11/10/09 MW-104 39 10 3.664
21 5/26/10 MW-104 67.8 10 4.217
22 11/15/10 MW-104 46.2 10 3.833
23 5/9/11 MW-104 4.21 10 1.437
24 11/14/11 MW-104 16.1 10 2.779
25 5/7/12 MW-104 9.55 10 2.257
26 11/5/12 MW-104 12.4 10 2.518
27 5/13/13 MW-104 8.59 10 2.151
28 11/11/13 MW-104 19.3 10 2.960
29 5/12/14 MW-104 8.49 10 2.139
Note: All sample concentrations are micrograms per liter
The background mean and standard deviation were modified using Aitchison's Adjustment.
The adjusted mean and standard deviation are as follows:
the ln(adjusted mean) and l(standard deviation) are
ln(adjusted mean) = 1.91
ln(adjusted standard deviation) = 1.52
Using the background data, the upper Prediction Limit can be determined using:
January 2015 Page 11 of 13 0739603714.100
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Upper Prediction Limit = (Mean Conc) + t(n-1,k,.95) x (Std Dev) x SQRT(1/m+1/n)
where:Mean Conc = mean concentration background samples
t(n-1k,.95) = Bonferroni t-statistic from table 1, with
n-1 = degrees of freedom (number of samples - 1)
k = number of downgradient samples per event
.95 = confidence interval
Std Dev = standard deviation of background samples
m = number independent samples from each sampling point
n = number of background samples
For:Mean Conc = 1.91
Std Dev = 1.52
t(n-1,k,.95)*sqrt(1/m+1/n) = 1.73
k = 1
m = 1
n = 29
Antilog UPL = 94.5 ug/L
January 2015 Page 12 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-104 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739-603714
Date:1/9/15
Parametric Tolerance Interval for Aitchison's adjusted data
Analyte:Cobalt (Intra-well MW-104)
Background Data Quantitation
Concentration Limit ln(Concentration)
Sample No.Sample Date Location (ug/l)(ug/l)
1 1/11/00 MW-104 ND 5.00 ND
2 10/10/00 MW-104 ND 10.00 ND
3 7/12/01 MW-104 ND 10.00 ND
4 10/24/01 MW-104 ND 10.00 ND
5 5/28/02 MW-104 ND 10.00 ND
6 11/5/02 MW-104 ND 10.00 ND
7 5/29/03 MW-104 14 10.00 2.64
8 11/5/03 MW-104 22 10.00 3.09
9 5/25/04 MW-104 20 10.00 3.00
10 11/23/04 MW-104 14 10.00 2.64
11 5/16/05 MW-104 ND 10.00 ND
12 11/25/05 MW-104 ND 10.00 ND
13 5/24/06 MW-104 ND 10.00 ND
14 11/20/06 MW-104 ND 10.00 ND
15 5/22/07 MW-104 20.2 10.00 3.01
16 11/13/07 MW-104 11.1 10.00 2.41
17 5/29/08 MW-104 58.4 10.00 4.07
18 11/17/08 MW-104 21.6 10.00 3.07
19 5/26/09 MW-104 35.3 10.00 3.56
20 11/10/09 MW-104 39 10.00 3.66
21 5/26/10 MW-104 67.8 10.00 4.22
22 11/15/10 MW-104 46.2 10.00 3.83
23 5/9/11 MW-104 4.21 10.00 1.44
24 11/14/11 MW-104 16.1 10.00 2.78
25 5/7/12 MW-104 9.55 10.00 2.26
26 11/5/12 MW-104 12.4 10.00 2.52
27 5/13/13 MW-104 8.59 10.00 2.15
28 11/11/13 MW-104 19.3 10.00 2.96
29 5/12/14 MW-104 8.49 10.00 2.14
Note: All sample concentrations are micrograms per liter
The background mean and standard deviation were modified using Aitchison's Adjustment.
The adjusted mean and standard deviation are as follows:
The ln(adjusted mean) and ln(standard deviation) are
ln(adjusted mean) =1.91
ln(adjusted standard deviation) =1.52
Using the background data, the upper Tolerance Limit can be determined using
January 2015 Page 13 of 13 0739603714.100
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Upper Tolerance Limit = (Mean Concentration) + K x (Standard Deviation Samples)
where:K = factor for constructing one sided normal tolerance limit
taken from table 4-2, page 87, Statistical Methods for Groundwater
Monitoring, Gibbons, 1994
n = number of background samples
For:K = 2.234
n = 29
UTL = 204 ug/L
January 2015 Page 1 of 9 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-107S November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Analyte:Cobalt (MW-107S Intrawell)Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/L)(ug/L)
1 01/11/00 MW-107S 2.5 1/2 Quant. Limit 5
2 02/22/00 MW-107S 2.5 1/2 Quant. Limit 5
3 10/10/00 MW-107S 39 10
4 07/12/01 MW-107S 54 10
5 11/05/02 MW-107S 5 1/2 Quant. Limit 10
6 05/29/03 MW-107S 19 10
7 11/05/03 MW-107S 47 10
8 05/25/04 MW-107S 104 10
9 11/23/04 MW-107S 117 10
10 05/16/05 MW-107S 5 1/2 Quant. Limit 10
11 11/25/05 MW-107S 35 10
12 05/24/06 MW-107S 32 10
13 11/20/06 MW-107S 29 10
14 05/22/07 MW-107S 75 10
15 11/13/07 MW-107S 34.2 10
16 05/29/08 MW-107S 23.5 10
17 11/17/08 MW-107S 68.0 10
18 05/26/09 MW-107S 59.4 10
19 11/10/09 MW-107S 121 10
20 05/26/10 MW-107S 102 10
21 11/15/10 MW-107S 132 10
22 05/09/11 MW-107S 105 10
23 11/14/11 MW-107S 103 10
24 11/05/12 MW-107S 139 10
25 05/13/13 MW-107S 31.8 10
26 11/11/13 MW-107S 100 10
27 05/12/14 MW-107S 4.59 J 10
Number of Data:27
Number of Truncated Data:4
Percentage of Truncated Data:15%
Nonparametric Prediction Interval:139 ug/L
January 2015 Page 2 of 9 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-107S November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Probability Plots to determine the distribution of Cobalt (MW-107S Intrawell)
Complete the following table where:
i = ordered value of sample, arranged from smallest to largest
X(i) = sample values arranged from smallest to largest
LN[X(i)] = Natural Log Value of sample concentrations arranged from
smallest to largest
[i/(n+1)] = Cumulative probability
n = number of samples = 27
X(i)LN[X(i)]i Rank [Rank/(n+1)]Quantiles
2.5 0.92 1 1 0.036 -1.80
2.5 0.92 2 2 0.071 -1.47
4.59 1.52 3 3 0.107 -1.24
5 1.61 4 4 0.143 -1.07
5 1.61 5 5 0.179 -0.92
19 2.94 6 6 0.214 -0.79
23.5 3.16 7 7 0.250 -0.67
29 3.37 8 8 0.286 -0.57
31.8 3.46 9 9 0.321 -0.46
32 3.47 10 10 0.357 -0.37
34.2 3.53 11 11 0.393 -0.27
35 3.56 12 12 0.429 -0.18
39 3.66 13 13 0.464 -0.09
47 3.85 14 14 0.500 0.00
54 3.99 15 15 0.536 0.09
59.4 4.08 16 16 0.571 0.18
68 4.22 17 17 0.607 0.27
75 4.32 18 18 0.643 0.37
100 4.61 19 19 0.679 0.46
102 4.62 20 20 0.714 0.57
103 4.63 21 21 0.750 0.67
104 4.64 22 22 0.786 0.79
105 4.65 23 23 0.821 0.92
117 4.76 24 24 0.857 1.07
121 4.80 25 25 0.893 1.24
132 4.88 26 26 0.929 1.47
139 4.93 27 27 0.964 1.80
January 2015 Page 3 of 9 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-107S November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Probability Plots to determine the distribution of Cobalt (MW-107S Intrawell)
R² = 0.9379
-2.00
-1.50
-1.00
-0.50
0.00
0.50
1.00
1.50
2.00
0 50 100 150
Qu
a
n
t
i
l
e

Concentration, Micrograms per Liter
Normal Probability Plot
Cobalt Concentrations
R² = 0.8926
-2.00
-1.50
-1.00
-0.50
0.00
0.50
1.00
1.50
2.00
0.00 2.00 4.00 6.00
Qu
a
n
t
i
l
e

Log Normal Concentrations
Log Normal Probability Plot
Cobalt Concentrations
January 2015 Page 4 of 9 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-107S November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Determination of reported background value as an outlier
Analyte:Cobalt (MW-107S Intrawell)
Background Data Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/l)(ug/l)
1 1/11/00 MW-107S 2.5 5
2 2/22/00 MW-107S 2.5 5
3 10/10/00 MW-107S 39 10
4 7/12/01 MW-107S 54 10
5 11/5/02 MW-107S 5 10
6 5/29/03 MW-107S 19 10
7 11/5/03 MW-107S 47 10
8 5/25/04 MW-107S 104 10
9 11/23/04 MW-107S 117 10
10 5/16/05 MW-107S 5 10
11 11/25/05 MW-107S 35 10
12 5/24/06 MW-107S 32 10
13 11/20/06 MW-107S 29 10
14 5/22/07 MW-107S 75 10
15 11/13/07 MW-107S 34.2 10
16 5/29/08 MW-107S 23.5 10
17 11/17/08 MW-107S 68 10
18 5/26/09 MW-107S 59.4 10
19 11/10/09 MW-107S 121 10
20 5/26/10 MW-107S 102 10
21 11/15/10 MW-107S 132 10
22 5/9/11 MW-107S 105 10
23 11/14/11 MW-107S 103 10
24 11/5/12 MW-107S 139 10
25 5/13/13 MW-107S 31.8 10
26 11/11/13 MW-107S 100 10
27 5/12/14 MW-107S 4.59 10
mean = 58.870
STD = 44.310
Note: All concentrations are micrograms per liter
Using the data listed above, form the statisitc Tn:
Tn = (Xn - mean) / STD
where:Xn = largest observed sample value
mean = mean of the background values
STD = standard deviation of the background values
January 2015 Page 5 of 9 0739603714.100
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For Xn = 139.000
mean = 58.870
STD = 44.310
Tn = 1.808
From Table 8 included in the Staistical Analysis of Groundwater Monitoring Data at
RCRA Facilities - Interim Final Guidance, the critical value for the given sample group is
Number of samples =27
Tc = 2.698
Since Tc>Tn, the sample result is not considered to be an outlier
January 2015 Page 6 of 9 0739603714.100
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Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Shapiro Wilk Test Statistic (W) for normality of total Cobalt (MW-107S Intrawell)
Complete the following table where
i = ordered value of sample, arranged from smallest to largest
X(i) = sample values arranged from smallest to largest
X(n-i+1) = sample values arranged from largest to smallest
A(n-i+1) = coefficient from table A-1, Statistical Analysis of Ground-Water
Data at RCRA Facilities
B(i) = summation of (X(n-i+1)-X(i))A(n-i+1)
i X(i)X(n-i+1)X(n-i+1) - X(i)A(n-i+1)B(i)
1 2.50 139.00 136.5 0.4366 59.60
2 2.50 132.00 129.50 0.3018 39.08
3 4.59 121.00 116.41 0.2522 29.36
4 5.00 117.00 112.00 0.2152 24.10
5 5.00 105.00 100 0.1848 18.48
6 19.00 104.00 85 0.1584 13.46
7 23.50 103.00 79.5 0.1346 10.70
8 29.00 102.00 73 0.1128 8.23
9 31.80 100.00 68.20 0.0923 6.29
10 32.00 75.00 43 0.0728 3.13
11 34.20 68.00 33.8 0.0540 1.83
12 35.00 59.40 24.4 0.0358 0.87
13 39.00 54.00 15 0.0178 0.27
14 47.00 47.00 0 0.0000 0.00
15 54.00 39.00
16 59.40 35.00
17 68.00 34.20
18 75.00 32.00
19 100.00 31.80
20 102.00 29.00
21 103.00 23.50
22 104.00 19.00
23 105.00 5.00
24 117.00 5.00
25 121.00 4.59
26 132.00 2.50
27 139.00 2.50
The test statistic W can be found using:
W = SQR[B/(SD x SQRT(n-1))]
where:B = summation of (X(n-i+1)-X(i))A(n-i+1)=215.41
SD = standard deviation of the data group =44.31
n = number of samples =27
January 2015 Page 7 of 9 0739603714.100
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W =0.909
Compare this value to the critical value in Table A-2 of Statistical Analysisof Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.923
and the calculated W = 0.909
Therefore the data is Non Normal
January 2015 Page 8 of 9 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-107S November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Shapiro Wilk Test Statistic (W) for log normality of Cobalt (MW-107S Intrawell)
Complete the following table where
i = ordered value of sample, arranged from smallest to largest
X(i) = sample values arranged from smallest to largest
X(n-i+1) = sample values arranged from largest to smallest
A(n-i+1) = coefficient from table A-1, Statistical Analysis of Ground-Water
Data at RCRA Facilities
B(i) = summation of (X(n-i+1)-X(i))A(n-i+1)
i X(i)X(n-i+1)X(n-i+1) - X(i)A(n-i+1)B(i)
1 0.9163 4.9345 4.0182 0.4366 1.7543
2 0.9163 4.8828 3.9665 0.3018 1.1971
3 1.5239 4.7958 3.2719 0.2522 0.8252
4 1.6094 4.7622 3.1527 0.2152 0.6785
5 1.6094 4.6540 3.0445 0.1848 0.5626
6 2.9444 4.6444 1.7000 0.1584 0.2693
7 3.1570 4.6347 1.4777 0.1346 0.1989
8 3.3673 4.6250 1.2577 0.1128 0.1419
9 3.4595 4.6052 1.1457 0.0923 0.1057
10 3.4657 4.3175 0.8518 0.0728 0.0620
11 3.5322 4.2195 0.6873 0.0540 0.0371
12 3.5553 4.0843 0.5289 0.0358 0.0189
13 3.6636 3.9890 0.3254 0.0178 0.0058
14 3.8501 3.8501 0.0000 0.0000 0.0000
15 3.9890 3.6636
16 4.0843 3.5553
17 4.2195 3.5322
18 4.3175 3.4657
19 4.6052 3.4595
20 4.6250 3.3673
21 4.6347 3.1570
22 4.6444 2.9444
23 4.6540 1.6094
24 4.7622 1.6094
25 4.7958 1.5239
26 4.8828 0.9163
27 4.9345 0.9163
The test statistic W can be found using:
W = SQR((B/SD x SQRT(n-1))
where:B = summation of (X(n-i+1)-X(i))A(n-i+1)=5.8573
SD = standard deviation of the data group =1.2442
n = number of samples =27
January 2015 Page 9 of 9 0739603714.100
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W =0.8525
Compare this value to the critical value in Table A-2 of Statistical Analysisof Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.923
and the calculated W = 0.852
Therefore the data is Non Normal
January 2015 Page 1 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Analyte:Cobalt (Intrawell MW-108)Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/L)(ug/L)
1 01/11/00 MW-108 ND 5
2 02/22/00 MW-108 ND 5
3 10/10/00 MW-108 ND 10
4 07/12/01 MW-108 ND 10
5 10/24/01 MW-108 ND 10
6 05/28/02 MW-108 ND 10
7 11/05/02 MW-108 ND 10
8 05/29/03 MW-108 ND 10
9 05/25/04 MW-108 ND 10
10 11/23/04 MW-108 ND 10
11 05/16/05 MW-108 ND 10
12 11/25/05 MW-108 ND 10
13 05/24/06 MW-108 ND 10
14 11/20/06 MW-108 ND 10
15 05/22/07 MW-108 2.8 J 10
16 11/13/07 MW-108 7.8 J 10
17 05/29/08 MW-108 27.7 10
18 11/17/08 MW-108 7.2 J 10
19 05/26/09 MW-108 11.4 10
20 11/10/09 MW-108 6.78 J 10
21 05/26/10 MW-108 14.1 10
22 11/15/10 MW-108 28.7 10
23 12/21/10 MW-108 45.5 10
24 05/09/11 MW-108 48.2 10
25 11/14/11 MW-108 38.2 10
26 05/07/12 MW-108 23.6 10
27 11/05/12 MW-108 27.5 10
28 05/13/13 MW-108 20.9 10
29 11/11/13 MW-108 36.0 10
30 05/12/14 MW-108 38.4 10
Number of Data:30
Number of Truncated Data:14
Percentage of Truncated Data:47%
48.6 ug/LUpper Tolerance Interval:
January 2015 Page 2 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:1/9/15
Probability Plots to determine the distribution of Cobalt (Intrawell MW-108)
Complete the following table where:
i = ordered value of sample, arranged from smallest to largest
X(i) = sample values arranged from smallest to largest
LN[X(i)] = Natural Log Value of sample concentrations arranged from
smallest to largest
[i/(n+1)] = Cumulative probability
n = number of samples = 16
X(i)LN[X(i)]i Rank [Rank/(n+1)]Quantiles
2.8 1.03 1 1 0.059 -1.56
6.78 1.91 2 2 0.118 -1.19
7.2 1.97 3 3 0.176 -0.93
7.8 2.05 4 4 0.235 -0.72
11.4 2.43 5 5 0.294 -0.54
14.1 2.65 6 6 0.353 -0.38
20.9 3.04 7 7 0.412 -0.22
23.6 3.16 8 8 0.471 -0.07
27.5 3.31 9 9 0.529 0.07
27.7 3.32 10 10 0.588 0.22
28.7 3.36 11 11 0.647 0.38
36 3.58 12 12 0.706 0.54
38.2 3.64 13 13 0.765 0.72
38.4 3.65 14 14 0.824 0.93
45.5 3.82 15 15 0.882 1.19
48.2 3.88 16 16 0.941 1.56
January 2015 Page 3 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:01/09/15
Probability Plots to determine the distribution of Cobalt (Intrawell MW-108)
R² = 0.9673
-2.00
-1.50
-1.00
-0.50
0.00
0.50
1.00
1.50
2.00
0 10 20 30 40 50 60
Qu
a
n
t
i
l
e

Concentration, Micrograms per Liter
Normal Probability Plot
Cobalt MW-108 Concentrations
R² = 0.9095
-2.00
-1.50
-1.00
-0.50
0.00
0.50
1.00
1.50
2.00
0.00 1.00 2.00 3.00 4.00 5.00
Qu
a
n
t
i
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Log Normal Concentrations
Log Normal Probability Plot
Cobalt MW-108 Concentrations
January 2015 Page 4 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:1/9/15
Determination of reported background value as an outlier
Analyte:Cobalt (Intrawell MW-108)
Background Data Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/l)(ug/l)
1 1/11/00 MW-108 ND 5
2 2/22/00 MW-108 ND 5
3 10/10/00 MW-108 ND 10
4 7/12/01 MW-108 ND 10
5 10/24/01 MW-108 ND 10
6 5/28/02 MW-108 ND 10
7 11/5/02 MW-108 ND 10
8 5/29/03 MW-108 ND 10
9 5/25/04 MW-108 ND 10
10 11/23/04 MW-108 ND 10
11 5/16/05 MW-108 ND 10
12 11/25/05 MW-108 ND 10
13 5/24/06 MW-108 ND 10
14 11/20/06 MW-108 ND 10
15 5/22/07 MW-108 2.8 J 10
16 11/13/07 MW-108 7.8 J 10
17 5/29/08 MW-108 27.7 10
18 11/17/08 MW-108 7.2 J 10
19 5/26/09 MW-108 11.4 10
20 11/10/09 MW-108 6.78 J 10
21 5/26/10 MW-108 14.1 10
22 11/15/10 MW-108 28.7 10
23 12/21/10 MW-108 45.5 10
24 5/9/11 MW-108 48.2 10
25 11/14/11 MW-108 38.2 10
26 5/7/12 MW-108 23.6 10
27 11/5/12 MW-108 27.5 10
28 5/13/13 MW-108 20.9 10
29 11/11/13 MW-108 36 10
30 5/12/14 MW-108 38.4 10
mean = 24.0
STD = 14.6
Note: All concentrations are micrograms per liter
Using the data listed above, form the statisitc Tn:
Tn = (Xn - mean) / STD
where:Xn = largest observed sample value
January 2015 Page 5 of 13 0739603714.100
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mean = mean of the background values
STD = standard deviation of the background values
For Xn = 48.2
mean = 24.0
STD = 14.6
Tn = 1.652
From Table 8 included in the Staistical Analysis of Groundwater Monitoring Data at
RCRA Facilities - Interim Final Guidance, the critical value for the given sample group is
Number of samples =30
Tc = 2.745
Since Tc>Tn, the sample result is not considered to be an outlier
January 2015 Page 6 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:1/9/15
Shapiro Wilk Test Statistic (W) for normality of total Cobalt (Intrawell MW-108)
Complete the following table where
i = ordered value of sample, arranged from smallest to largest
X(i) = sample values arranged from smallest to largest
X(n-i+1) = sample values arranged from largest to smallest
A(n-i+1) = coefficient from table A-1, Statistical Analysis of Ground-Water
Data at RCRA Facilities
B(i) = summation of (X(n-i+1)-X(i))A(n-i+1)
i X(i)X(n-i+1)X(n-i+1) - X(i)A(n-i+1)B(i)
1 2.8 48.2 45.4 0.5056 22.95
2 6.8 45.5 38.72 0.3290 12.74
3 7.2 38.4 31.2 0.2521 7.87
4 7.8 38.2 30.4 0.1939 5.89
5 11.4 36.0 24.6 0.1447 3.56
6 14.1 28.7 14.6 0.1005 1.47
7 20.9 27.7 6.8 0.0593 0.40
8 23.6 27.5 3.9 0.0196 0.08
9 27.5 23.6
10 27.7 20.9
11 28.7 14.1
12 36.0 11.4
13 38.2 7.8
14 38.4 7.2
15 45.5 6.8
16 48.2 2.8
The test statistic W can be found using:
W = SQR[B/(SD x SQRT(n-1))]
where:B = summation of (X(n-i+1)-X(i))A(n-i+1)=54.96
SD = standard deviation of the data group =14.62
n = number of samples =16
W =0.942
Compare this value to the critical value in Table A-2 of Statistical Analysisof Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.887
and the calculated W = 0.942
January 2015 Page 7 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Therefore the data set is Normal
January 2015 Page 8 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:1/9/15
Aitchison's Adjustment for Cobalt (Intrawell MW-108)
Background Values (positive detects only)
Concentration
Sample No.Sample Date Location (ug/l)
1 1/11/00 MW-108 ND
2 2/22/00 MW-108 ND
3 10/10/00 MW-108 ND
4 7/12/01 MW-108 ND
5 10/24/01 MW-108 ND
6 5/28/02 MW-108 ND
7 11/5/02 MW-108 ND
8 5/29/03 MW-108 ND
9 5/25/04 MW-108 ND
10 11/23/04 MW-108 ND
11 5/16/05 MW-108 ND
12 11/25/05 MW-108 ND
13 5/24/06 MW-108 ND
14 11/20/06 MW-108 ND
15 5/22/07 MW-108 2.8 J
16 11/13/07 MW-108 7.8 J
17 5/29/08 MW-108 27.7
18 11/17/08 MW-108 7.2 J
19 5/26/09 MW-108 11.4
20 11/10/09 MW-108 6.78 J
21 5/26/10 MW-108 14.1
22 11/15/10 MW-108 28.7
23 12/21/10 MW-108 45.5
24 5/9/11 MW-108 48.2
25 11/14/11 MW-108 38.2
26 5/7/12 MW-108 23.6
27 11/5/12 MW-108 27.5
28 5/13/13 MW-108 20.9
29 11/11/13 MW-108 36
30 5/12/14 MW-108 38.4
Mean of detected values =24.0
Standard Deviation of detected values =14.6
The adjusted mean can be found using
M(a) = (1-d/n) x M
where:d = number non- detected values =14
n = total number samples =30
M = mean detected values =24.0
January 2015 Page 9 of 13 0739603714.100
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M(a)=12.8
The adjusted standard deviation squared may be found using
STD(a) = (n-(d+1)S)/n-1) + d(n-d)MM/n(n-1)
where:n = total number samples =30
d = number non-detected values =14
S = std deviation of detected values squared =213.74
MM = mean of detected values squared =578.34
STD(a)=259.46
and the adjusted standard deviation is then
S(a) = SQRT(STD(a))=16.11
January 2015 Page 10 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:1/9/15
Parametric Prediction Interval for Aitchison's adjusted data
Analyte:Cobalt (Intrawell MW-108)
Background Data Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/l)(ug/l)
1 1/11/00 MW-108 ND 5.00
2 2/22/00 MW-108 ND 5.00
3 10/10/00 MW-108 ND 10.00
4 7/12/01 MW-108 ND 10.00
5 10/24/01 MW-108 ND 10.00
6 5/28/02 MW-108 ND 10.00
7 11/5/02 MW-108 ND 10.00
8 5/29/03 MW-108 ND 10.00
9 5/25/04 MW-108 ND 10.00
10 11/23/04 MW-108 ND 10.00
11 5/16/05 MW-108 ND 10.00
12 11/25/05 MW-108 ND 10.00
13 5/24/06 MW-108 ND 10.00
14 11/20/06 MW-108 ND 10.00
15 5/22/07 MW-108 2.8 10.00
16 11/13/07 MW-108 7.8 10.00
17 5/29/08 MW-108 27.7 10.00
18 11/17/08 MW-108 7.2 10.00
19 5/26/09 MW-108 11.4 10.00
20 11/10/09 MW-108 6.78 10.00
21 5/26/10 MW-108 14.1 10.00
22 11/15/10 MW-108 28.7 10.00
23 12/21/10 MW-108 45.5 10.00
24 5/9/11 MW-108 48.2 10.00
25 11/14/11 MW-108 38.2 10.00
26 5/7/12 MW-108 23.6 10.00
27 11/5/12 MW-108 27.5 10.00
28 5/13/13 MW-108 20.9 10.00
29 11/11/13 MW-108 36 10.00
30 5/12/14 MW-108 38.4 10.00
Note: All sample concentrations are micrograms per liter
The background mean and standard deviation were modified using Aitchison's Adjustment.
The adjusted mean and standard deviation are as follows:
the adjusted mean and standard deviation are
adjusted mean =12.83
adjusted standard deviation =16.11
January 2015 Page 11 of 13 0739603714.100
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Using the background data, the upper Prediction Limit can be determined using:
Upper Prediction Limit = (Mean Conc) + t(n-1,k,.95) x (Std Dev) x SQRT(1/m+1/n)
where:Mean Conc = mean concentration background samples
t(n-1k,.95) = Bonferroni t-statistic from table 1, with
n-1 = degrees of freedom (number of samples - 1)
k = number of downgradient samples per event
.95 = confidence interval
Std Dev = standard deviation of background samples
m = number independent samples from each sampling point
n = number of background samples
For:Mean Conc = 12.826
Std Dev = 16.108
t(n-1,k,.95)*sqrt(1/m+1/n) = 1.73
k = 1
m = 1
n = 30
UPL = 40.7 ug/L
January 2015 Page 12 of 13 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\MSW Stats\Intrawell\MSW Cobalt Intrawell MW-108 November 2014.xlsx
Project Name:WI - Sampson County Active MSW
Project No:0739603714.100
Date:1/9/15
Parametric Tolerance Interval for Aitchison's adjusted data
Analyte:Cobalt (Intrawell MW-108)
Background Data Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/l)(ug/l)
1 1/11/00 MW-108 ND 5
2 2/22/00 MW-108 ND 5
3 10/10/00 MW-108 ND 10
4 7/12/01 MW-108 ND 10
5 10/24/01 MW-108 ND 10
6 5/28/02 MW-108 ND 10
7 11/5/02 MW-108 ND 10
8 5/29/03 MW-108 ND 10
9 5/25/04 MW-108 ND 10
10 11/23/04 MW-108 ND 10
11 5/16/05 MW-108 ND 10
12 11/25/05 MW-108 ND 10
13 5/24/06 MW-108 ND 10
14 11/20/06 MW-108 ND 10
15 5/22/07 MW-108 2.8 10
16 11/13/07 MW-108 7.8 10
17 5/29/08 MW-108 27.7 10
18 11/17/08 MW-108 7.2 10
19 5/26/09 MW-108 11.4 10
20 11/10/09 MW-108 6.78 10
21 5/26/10 MW-108 14.1 10
22 11/15/10 MW-108 28.7 10
23 12/21/10 MW-108 45.5 10
24 5/9/11 MW-108 48.2 10
25 11/14/11 MW-108 38.2 10
26 5/7/12 MW-108 23.6 10
27 11/5/12 MW-108 27.5 10
28 5/13/13 MW-108 20.9 10
29 11/11/13 MW-108 36 10
30 5/12/14 MW-108 38.4 10
Note: All sample concentrations are micrograms per liter
The background mean and standard deviation were modified using Aitchison's Adjustment.
The adjusted mean and standard deviation are as follows:
The adjusted mean and standard deviation are
adjusted mean =12.83
adjusted standard deviation =16.11
January 2015 Page 13 of 13 0739603714.100
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Using the background data, the upper Tolerance Limit can be determined using
Upper Tolerance Limit = (Mean Concentration) + K x (Standard Deviation Samples)
where:K = factor for constructing one sided normal tolerance limit
taken from table 4-2, page 87, Statistical Methods for Groun
Monitoring, Gibbons, 1994
n = number of background samples
For:K = 2.22
n = 30
UTL = 48.6 ug/L
January 2015 Page 1 of 1 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\C&D Stats\Stats Summary Table November 2014.xls
MW-2N MW-3N MW-4N MW-5AN MW-5BN
Notes:1. Shaded values represent apparent statistical significant increases (SSIs) over background concentrations.
2. Statistical worksheets are provided in Appendix C.
3. ug/L = micrograms per liter; ND = not detected at the laboratory detection limit; J = estimated concentration below the Solid Waste Section Limit
4. B = blank-qualified data (not included in statistical calculations)
5. Results in parentheses represent dissolved concentrations.
Downgradient Monitoring Wells and ConcentrationsDetected Monitoring
Constituent/Analytes
Reporting
Units
Prediction
IntervalStatistical Evaluation Method
Summary of Statistical Analysis
Sampson County Active C&D Landfill, Permit No. 82-02
Sampson County, North Carolina
November 2014
NDChromiumug/L ND 1.70 J 10.3 9.85 JInterwellNonparametric Prediction Interval 20.0
January 2015 Page 1 of 1 0739603714.100
G:\Projects\Waste Industries\Sampson County\Active MSW Landfill 82-02\GWMR\Nov 2014\Stats\C&D Stats\C&D Chromium November 2014.xlsx
Project Name:WI - Sampson County Active C&D
Project No:0739603714.100
Date:01/09/15
Analyte:Chromium Quantitation
Concentration Limit
Sample No.Sample Date Location (ug/L)(ug/L)
1 10/08/96 MW-1N ND 2
2 02/18/97 MW-1N ND 2
3 08/29/97 MW-1N ND 10
4 02/23/98 MW-1N ND 5
5 08/24/98 MW-1N ND 5
6 02/22/99 MW-1N ND 5
7 08/23/99 MW-1N ND 5
8 02/21/00 MW-1N ND 5
9 10/10/00 MW-1N ND 10
10 07/12/01 MW-1N ND 10
11 10/24/01 MW-1N ND 10
12 05/28/02 MW-1N 20 10
13 11/05/02 MW-1N ND 10
14 05/29/03 MW-1N ND 10
15 05/25/04 MW-1N ND 10
16 11/23/04 MW-1N ND 10
17 05/16/05 MW-1N ND 10
18 11/25/05 MW-1N ND 10
19 05/24/06 MW-1N ND 10
20 11/20/06 MW-1N ND 10
21 05/22/07 MW-1N ND 10
22 11/14/07 MW-1N ND 10
23 05/29/08 MW-1N ND 10
24 05/27/09 MW-1N ND 10
25 11/11/09 MW-1N ND 10
26 05/26/10 MW-1N ND 10
27 11/15/10 MW-1N ND 10
28 05/09/11 MW-1N ND 10
29 11/14/11 MW-1N ND 10
30 05/08/12 MW-1N 2.09 J 10
31 11/05/12 MW-1N 19.4 10
32 05/14/13 MW-1N 1.93 J 10
33 11/12/13 MW-1N 1.97 J 10
34 05/13/14 MW-1N ND 10
35 11/17/14 MN-1N ND 10
Number of Data:35
Number of Truncated Data:30
Percentage of Truncated Data:86%
Nonparametric Prediction Interval:20.0 ug/L