1403_Republic_Foothills_MSWLF_ASDForVOCs_DIN28531_20170619

PREPARED FOR:
REPUBLIC SERVICES OF NORTH CAROLINA, LLC
D.B.A. FOOTHILLS ENVIRONMENTAL
2800 CHERAW ROAD
LENOIR, NORTH CAROLINA 28645

FOOTHILLS REGIONAL LANDFILL
PERMIT NO. 14-03

ALTERNATE SOURCE DEMONSTRATION
FOR BENZENE & VINYL CHLORIDE IN MW-2R

JUNE 2017

PREPARED BY:

2211 WEST MEADOWVIEW ROAD, SUITE 101
GREENSBORO, NORTH CAROLINA 27407
NC LICENSE NUMBER C-0782
PHONE: [phone]
FAX: [phone]
JOYCE ENGINEERING PROJECT NO. 00890.1702.12.04

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Alternate Source Determination for VOCs in MW-2R Joyce Engineering
Foothills Regional Landfill, Permit No. 14-03 June 2017
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Alternate Source Determination
for Benzene and Vinyl Chloride in MW-2R
Foothills Regional Landfill, Permit No. 14-03

TABLE OF CONTENTS

1.0 INTRODUCTION..............................................................................................................1 
1.1  Site Description and Background ................................................................................ 1 
1.2 Compliance Monitoring History .................................................................................. 1 
1.3 Hydrogeologic Setting ................................................................................................... 2 
2.0 GROUNDWATER CONSTUITUENTS AND COMPARISON TO GPS ...................3 
2.1 Applicable Groundwater Standards ........................................................................... 3 
2.2 Historical detections of VOCs in MW-2R .................................................................. 3 
2.3 Recent Exceedances in MW-2R ................................................................................... 3 
2.4 Statistical Comparison to GPS .................................................................................... 4 
3.0 INDICATOR PARAMETERS AND DISSOLVED GASSES .......................................4 
4.0 SOURCE EVALUATION .................................................................................................4 
4.1 Leachate ......................................................................................................................... 4 
4.2 Landfill Gas ................................................................................................................... 5 
5.0 CONCLUSIONS AND RECOMENDATIONS ..............................................................7 
6.0 REFERENCES ...................................................................................................................7 

TABLES
Table 1: Historical Detections of VOCs in MW-2R
Table 2: Indicator Parameters and Dissolved Gases
Table 3: Comparison of VOCs in MW-2R and Leachate

CHARTS
Chart 1: Comparison of MW-2R VOCs Results with Leachate
Chart 2: Stiff Diagrams for MW-2R and Leachate

DRAWING
Drawing 1: Potentiometric Surface Contour Map (January 2017)

APPENDICES
Appendix A: Laboratory Reports, Chains of Custody, & Sampling Logs
Appendix B: Statistical Analysis Worksheets

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Alternate Source Determination for VOCs in MW-2R Joyce Engineering
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1.0 INTRODUCTION
On behalf of Republic Services of North Carolina, LLC (Republic), Joyce Engineering (JOYCE)
presents this Alternate Source Demonstration (ASD) for the Foothills Regional Landfill in
accordance with 15A NCAC 13B .1633(c)(3). This ASD addresses recent detections of benzene
and vinyl chloride above groundwater protection standards (GPS) in well MW-2R during the
semiannual water quality monitoring event conducted on January 28, 2016. These exceedances
were reported to the North Carolina Department of Environmental Quality (NCDEQ) in a
14-Day Notification on March 22, 2017.

1.1 Site Description and Background
The Foothills Regional Landfill is located approximately two miles northwest of Lenoir, North
Carolina in Caldwell County at 2800 Cheraw Road. The landfill is bounded to the north and east
by mainly wooded and agricultural properties, to the south by Cheraw Road, and to the west by
rural residential/wooded properties and Abingdon Road. The location of the facility is shown on
the inlay on Drawing 1. The facility is a fully lined Subtitle D municipal solid waste landfill
which began operating in 1998 under Permit Number 14-03, issued by NCDEQ (formerly called
the Department of Environment and Natural Resources – DENR). The approximately 230-acre
facility is maintained and operated by Republic Services of North Carolina, LLC.

1.2 Compliance Monitoring History
Groundwater monitoring at the facility was initiated in 1998 under the Detection Monitoring
Program for municipal solid waste landfills. The facility’s current monitoring network is
comprised of nine monitoring wells: MW-1R (background), MW-2R, MW-3R2, MW-4, MW-5,
MW-6, MW-7, MW-8, and MW-10, which monitor the uppermost aquifer beneath the facility.
In addition, four surface water sampling points are sampled semiannually: upstream surface
point SW-1; and downstream surface points SW-2, SW-3, and SW-4. Two underdrains are also
sampled semiannually: UD-1, the underdrain for Cell 1; and UD-2, the underdrain for Cells 4
and 8A. The locations of all sampling points are shown on Drawing 1.

The facility was in an Assessment Monitoring Program in 2006 due to volatile organic
compounds (VOCs) detected above GPS in the area of former monitoring wells MW-3 and
MW-3R. An ASD for VOCs detected in wells MW-3 and MW-3R was submitted in May 2006,
which concluded that the landfill was not the source of the VOCs. The NCDEQ approved the
ASD on December 14, 2006, and the facility reverted to a Detection Monitoring Program. New
well MW-3R2 was installed downgradient of MW-3/MW-3R and did not show GPS
exceedances. NCDEQ approved use of MW-3R2 in the monitoring program in place of
MW-3/MW-3R. Note that MW-3 and MW-3R are located approximately 320 feet east of
MW-2R.

An ASD for Cobalt at the facility was submitted to NCDEQ in November 2016 as requested in
an August 8, 2016 letter from NCDEQ, which represented a new interpretation of the
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regulations. This ASD addressed recent and historic cobalt results and was submitted
specifically to request that statistical background be used as the groundwater protection standard
(GPS) for cobalt. The ASD was submitted in accordance with the state-wide, August 8, 2016
NCDEQ Memo indicating that ASDs need to be submitted to support use of background as GPS
at landfill facilities, in general. 15A NCAC 13B.1634.(g).(5) allows for the owner/operator to
request that a background level higher than the NC2L or other applicable standard be considered
the GPS. Prior to the August 2016 Memo, this request was made in the semiannual monitoring
reports; however, the NCDEQ now requires that this request be made as part of an ASD. This
ASD is still under review by NCDEQ.

1.3 Hydrogeologic Setting
Geologically, the facility is located in the northwestern portion of the Inner Piedmont Belt of the
Piedmont Physiographic Province, approximately 20 miles east of the thrust belt (Brevard Shear
Zone) delineating the boundary between the westerly Blue Ridge Belt and the easterly Inner
Piedmont Belt. The metamorphic rocks of the Inner Piedmont Belt generally group within the
sillimanite facies of the amphibolite metamorphic sequence. Locally, the bedrock underlying the
facility has been mapped as migmatitic granitic gneiss of the Ordovician and older Cambrian
Periods. These rocks are described as ranging in composition from granitic to quartz dioritic with
smaller biotite gneiss and amphibolite facies present locally. The unit as a whole exhibits a
variable massive to foliated fabric (NCGS, 1985).

The uppermost aquifer beneath the facility is present within weathered bedrock saprolite and
fractured bedrock. The saprolite ranges in texture from clayey silt in the upper, most weathered
sections to micaceous sandy silt in the lower sections. Immediately above the competent
bedrock surface, a variable thickness transitional zone composed of highly weathered and
degraded friable bedrock is present.

The uppermost aquifer is laterally continuous across the site, with depth to water ranging from
less than 31 feet in low-lying areas to greater than 77 feet beneath topographic highs.
Groundwater in the uppermost aquifer generally flows from recharge areas associated with broad
gently sloping topographic areas towards topographically lower areas that are generally
delineated by the presence of stream channels, some of which are perennial receiving streams
(groundwater discharge areas) and others of which are intermittent discharging streams. In the
vicinity of the facility, the general groundwater flow direction is towards the south and west.

Groundwater elevations obtained during the January 28, 2017, monitoring event are summarized
in Table 1 and were used to prepare a potentiometric surface map presented as Drawing 1. The
groundwater flow in the uppermost aquifer beneath the site is toward south and west in the
direction of Abingdon Creek. The potentiometric surface map and interpreted flow directions
are consistent with previously submitted potentiometric surface maps for this facility.

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2.0 GROUNDWATER CONSTUITUENTS AND COMPARISON TO GPS
2.1 Applicable Groundwater Standards
For most constituents, the Groundwater Protection Standards (GPS) are the standards found in
15A NCAC 2L.0202 (NC2L Standards). The NCDEQ Solid Waste Section (SWS) has
established alternate groundwater protection standards for constituents with no listed NC2L
standard. The SWS has also established reporting limits for constituents, referred to as the Solid
Waste Section Limits (SWSL), below which detections are considered estimated (not
quantified). The SWSL replaced the practical quantitation limits (PQL) in October 2006. 15A
NCAC 2L.0202.(b).(1) states: “Where the standard for a substance is less than the practical
quantitation limit, the detection of that substance at or above the practical quantitation limit
constitutes a violation of the standard.” Therefore, estimated concentrations below the SWSL
are not considered exceedances even if they are above the listed NC2L Standard.

The NC2L standard and the SWSL for benzene are both 1 µg/l, therefore the GPS is 1 µg/l. The
NC2L for vinyl chloride is 0.03 µg/l but the SWSL for vinyl chloride is 1 µg/l; therefore the
effective GPS for vinyl chloride is 1 µg/l.

2.2 Historical detections of VOCs in MW-2R
There have been several VOCs, including acetone, benzene, 1,1-dichloroethane, cis-1,2-
dichlorothene, methylene chloride, tetrachloroethene, trichloroethene, vinyl chloride, and
xylenes detected in MW-2R during the last several sampling events; however, most have been
estimated concentrations below the SWSL, and there have been no GPS exceedances until
recently. Table 1 presents a summary of the detected VOCs in MW-02R from July 2012 to
present.

In July 2016, vinyl chloride was detected in exceedance of the GPS; however, this exceedance
was refuted by a resampling event. In January 2016, both benzene and vinyl chloride were
detected above their respective GPS, but again these results were refuted by a resampling event.
In January 2017, benzene and vinyl chloride were again detected above their respective GPS, but
this time a resampling event confirmed the exceedances.

2.3 Recent Exceedances in MW-2R
The results for MW-2R from the January 26, 2017, sampling event found benzene at 1.6 µg/l and
vinyl chloride at 1.2 µg/l. These exceedances were confirmed by verification samples collected
on February 28, 2017, which found benzene at 1.6 µg/l and vinyl chloride at 1.8 µg/l. These
exceedances were reported to the NCDEQ in a 14 Day Notification on March 22, 2017, and were
reported on May 11, 2017, along with the laboratory reports, chains of custody, and sampling
logs, in the First Semiannual Water Quality Monitoring Report of 2017 for the Foothills Landfill.

To support this ASD, Two additional resampling events for MW-2R were conducted on April
19, 2017, and May 23, 2017. The complete laboratory analytical reports, chains of custody, and
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sampling logs, are included in Appendix A of this report. The April sample had benzene at 1.3
µg/l and vinyl chloride at 1.1 µg/l. The May sample had benzene at 1.7 µg/l and vinyl chloride
at 1.1 µg/l. Each of the results continues to be slightly above the GPS.

2.4 Statistical Comparison to GPS
The benzene and vinyl chloride results for MW-2R from the four independent sampling events
(January, February, April, and May 2017) conducted during this semiannual monitoring period
were statistically compared to GPS using confidence limit analyses. First the distributions of the
results were analyzed for normality and natural log-normality. The benzene results were found
to follow both a normal and a log-normal distribution. The vinyl chloride results did not show a
normal distribution, but they did show a log-normal distribution. The confidence interval
analyses were performed using both the raw data and using natural log-transformed data using a
99% confidence interval. The results are summarized below:

Constituent: Benzene Vinyl Chloride
Distribution: Normal & Log-normal Log-normal
Lower Confidence Limit (raw data): 1.05 .324
Lower Confidence Limit (ln(data)): 1.10 0.643
GPS (NC2L): 1.0 0.03
Confirmed Exceedance? Yes Yes
All results in micrograms per liter (µg/l).

Statistical comparison of the recent sampling results to GPS confirmed the exceedances for both
benzene and vinyl chloride in MW-2R. The complete statistical analysis worksheets are
included in Appendix B.

3.0 INDICATOR PARAMETERS AND DISSOLVED GASSES
In the April and May 2017 sampling events, MW-2R was also sampled for several indicator
parameters to support this ASD, including alkalinity (May event only), ammonia, chloride,
calcium, magnesium, and sodium. The April and May samples from MW-2R were also analyzed
for dissolved gasses, including methane, ethane, ethene, and carbon dioxide. In the May 2017
sampling event, the facility leachate was also sampled for the indicator parameters plus benzene
and vinyl chloride to provide a direct comparison between the leachate and the groundwater from
MW-2R. Table 2 presents a summary of the indicator parameters and dissolved gases data. The
complete laboratory analytical reports, chains of custody, and sampling logs, are included in
Appendix A of this report.

4.0 SOURCE EVALUATION
4.1 Leachate
The detected VOCs from MW-2R and the facility leachate are summarized in in Table 3 for the
January 26, 2017, and May 23, 2017, sampling events. Chart 1 shows a comparison between the
VOC detections in MW-2R and those in the leachate for the January 2017 event. The
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comparison shows significant differences in the VOCs detected in MW-2R and those in the
leachate; for example, the VOCs with the highest concentrations in the leachate (acetone, MIBK,
ethylbenzene, 2-butanone, toluene, and xylenes) were not detected in the groundwater from
MW-2R. Also, several of the VOCs detected in MW-2R (cis-1,2-dichloroethene, methylene
chloride, trichloroethene, and vinyl chloride) were detected at higher concentrations than found
in the leachate. This comparison indicates that leachate is not likely to be the source of the
VOCs found in the groundwater in MW-2R.

Review of the indicator parameters summarized in Table 2 also indicates significant difference
between the chemistry of the leachate and the chemistry of the groundwater from MW-2R.
Chart 2 shows stiff diagrams for the major ions/cations (sodium, calcium, magnesium, and
chloride) for MW-2R and the leachate based on the May 2017 analyses. Not only are the
concentrations much lower in the MW-2R sample, the shape of the Stiff plot is very different
from the leachate. This is a strong indication that the groundwater has not been impacted by
leachate in the vicinity of MW-2R. All of the inorganic indicator results for MW-2R are quite
low for natural water.

The additional facts that no ammonia (which is elevated in the leachate) was detected in MW-2R
and that the alkalinity in MW-2R is low for natural water and much lower than in the leachate
support the contention that the groundwater is not impacted by leachate. All of the indicator
parameters in MW-2R were in a range typical of normal, non-impacted groundwater in the North
Carolina Piedmont (Cunningham and Daniel, 2001).

Well MW-2R is located adjacent to landfill Cell 1. An underdrain was installed below Cell 1
and point UD-1 monitors water quality for the underdrain. There have been no confirmed GPS
exceedances for VOCs at UD-1, and no VOCs were detected in UD-1 in the January 2017
sampling event. This further supports that the VOCs detected at MW-2R are not a result of
leachate migration.

4.2 Landfill Gas
Typically, landfill gas is made up of approximately 40-70% methane (CH4), 30-50% carbon
dioxide (CO2), and <5% other VOCs, including benzene and vinyl chloride (Allen, et al, 1997;
Deipser and Stegmann, 1994; Cowie, 2004). Numerous studies have established that VOCs
present in landfill gas can readily partition into groundwater (Kerfoot, 1994; Kreamer,et al, 1998;
Kerfoot, et al, 2009; Carroll, 2016). Transfer of VOCs from gas to groundwater can occur both
in the monitor well and/or outside the monitor well. The objective of this section is to examine if
landfill gas is the source of recent benzene and vinyl chloride detections in groundwater at
MW-2R.

The construction parameters and recent water levels for monitoring well MW-2R are
summarized below:

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MW-2R Ft. BGS Ft. BTOC FT. AMSL FT. AMSL
TOC Elevation:1253.36 1253.36
Total Depth of Well:60.50 63.60 1189.76  
Top of Screen:45.50 48.60 1204.76  
Bottom of Screen:60.50 63.60 1189.76  
Depth to Water (April 19, 2017):41.78 44.88 1207.86 1208.48
Depth to Water (May 23, 2017):42.40 45.50 1214.06 1207.86
Average Depth to Water (2003-2017):40.87 43.97 1209.39 
Ft. BTOC = Feet below Top of Casing. Ft. BGS = Feet below ground surface. Ft. AMSL = Feet above mean sea level.

These data indicate that the water level is above the top of screen in MW-2R, so it is unlikely
that migrating landfill gas would be able to enter the well casing to impact the groundwater in
the well directly; however, this does not preclude the groundwater in the vicinity of MW-2R
from being impacted by landfill gas prior to it entering the well. The headspace in MW-2R was
monitored for CH4 and CO2 on April 19, 2017, and on May 23, 2017 using a properly-calibrated
GEM 2000 landfill gas monitor. No methane was detected in MW-2R on either date; however,
this is not surprising since the water level was above the top of the screen.

The nearest gas monitoring probes to MW-2R are GP-1-1 and GP-1-2, which are a nested pair of
probes in a single boring located approximately 10-15 feet from MW-2R. GP-1-1 monitors an
open gravel pack from 5-10 feet below ground surface, and GP-1-2 monitors an open gravel pack
from 25-40 feet below ground surface. On April 19, 2017, and on May 23, 2017, gas probes
GP-1-1 and GHP-1-2 were monitoring for methane using a properly-calibrated GEM 2000
landfill gas monitor. The results are summarized below.

Gas Probe
ID Date Time Pressure
(in-H20)
CH4
(%-vol.)
CO2
(%-vol.)
O2
(%-vol.)
GP-1-1 4/19/17 12:42 pm Nr 0.1% nr nr
GP-1-2 4/19/17 12:46 pm Nr 0.1% nr nr
GP-1-1 5/23/17 12:47 pm -0.02 4.1% 22.2% 0.0%
GP-1-2 5/23/17 12:49 pm -0.03 4.1% 21.0% 1.8%
nr = not recorded.

There was a trace of methane detected in the two gas probes during the April event. During the
May event, the concentrations of methane were significantly higher, although not in exceedance
of the lower explosive limit (LEL), which is 5% by volume. The reason for the difference
between the two dates may be related to weather conditions. The May event was conducted just
after a major storm moved through the area, so barometric pressure was low (28.59 in-Hg) and
the ground was more saturated than usual. Both of these factors have been shown to increase
potential gas migration. These data support landfill gas as a source for the VOCs detected in
MW-2R. We understand from discussions with the facility that probe GP-1 has typically shown
non-detect results for methane during routine gas monitoring events. Future monitoring under
the site’s explosive gas monitoring program will determine if the detections in May at GP-1were
a short-term condition.

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Table 2 summarizes the dissolved gases detected in the MW-2R groundwater sample during the
April and May 2017 sampling events. In both events, dissolved methane and dissolved carbon
dioxide, the major components of landfill gas, were detected at significant concentrations. CH4
was detected at 4.20 mg/l during both events, and CO2 was detected at 220 and 240 mg/l during
the April and May events, respectively. Trace amounts of ethane and ethene were also detected.
These concentrations of dissolved gases in the groundwater are clear indication that the
groundwater has been impacted by migrating landfill gas.

5.0 CONCLUSIONS AND RECOMENDATIONS
The data presented herein indicate that the recent GPS exceedances for benzene and vinyl
chloride in MW-2R at the Foothills Landfill are a result of partitioning of VOCs from migrating
landfill gas into the groundwater in the vicinity of MW-2R and do not an indicate a release of
leachate from the landfill or the leachate handling facilities at the site. Detections of methane in
gas probes near MW-2R and detection of dissolved methane and dissolved carbon dioxide in the
groundwater from MW-2R support this conclusion. It is further supported by the lack of
elevation of leachate indicator parameters in the groundwater from MW-2R, clear differences in
the constituents detected in leachate and the groundwater from MW-2R, and the differing
chemical signature of the groundwater compared to the leachate.

The Foothills Landfill has an active gas extraction system, so our recommendation is to
investigate possible adjustments or improvements to the gas extraction system that might
improve conditions in the area of MW-2R. The site is currently examining the possibility of
installing HDPE skirting around the extraction wells located closest to MW-2R to improve gas
recovery. We also recommend continued monitoring of the headspace in MW-2R for methane,
oxygen, and carbon dioxide during future semiannual monitoring events.

6.0 REFERENCES
Allen, M.R., Braithwaite, A., and Hills, C.C. (1997). Trace Organic Compounds in Landfill Gas
at Seven U.K. Waste Disposal Sites. Environmental Science and Technology. v. 31, p. 1054-
1061.

Carroll, Shawn, 2016. Use of Indicator Parameters to Diagnose Potential Source(s) of
Groundwater Contamination. SWANA, Palmetto, SC. May 19, 2016.

Cowie, Steve (2004). Emission of Non-methane Organic Compounds (NMOCs) and hazardous
air Pollutants (HAPs) from Decomposing Refuse and Individual Waste Components and Under
Different Conditions. Master’s Thesis, North Carolina State University.

Cunningham, William L. and Charles C. Daniel, III, 2001. Investigation of Ground-Water
Availability and Quality in Orange County, North Carolina. U.S. GEOLOGICAL SURVEY
Water-Resources Investigations Report 00–4286.

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Alternate Source Determination for VOCs in MW-2R Joyce Engineering
Foothills Regional Landfill, Permit No. 14-03 June 2017
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Deisper, A. and Stegmann, R. (1994). The Origin and Fate of Volatile Trace Components in
Municipal Solid Waste Landfills. Waste Management & Research. v. 12, p. 129-139.

Kerfoot, Henry B. (1994). Landfill Gas Effects on Groundwater Samples at a Municipal Solid
Waste Facility. Air & Waste, Vol. 44, Iss. 11, pp.1293-1298.
DOI:10.1080/10473289.1994.10467323.

Kerfoot, Henry B., Warren D. Brady, William H. Schramm & Mark A. Allendorf , 2009.
Natural Gas as the Source of Benzene in Groundwater. Environmental Forensics, Vol. 10 , Iss.
1, 2009.

Kraemer, Thomas A., P.E., Marshall Carpenter, P.E., and James Hartley, 1998. Developing
Strategy for Establishing Landfill Gas as Cause of Ground-Water Contamination. Practice
Periodical of Hazardous, Toxic, and Radioactive Waste Management, Vol. 2, Issue 4 (October
1998). Published online: October 01, 1998.

North Carolina Geologic Survey, 1985. Geologic Map of North Carolina; North Carolina
Department of Natural Resources and Community Development, Geological Survey Section;
scale 1:500,000.

TABLES

TABLE 1: Historical detections of VOCs in MW-2R
Well ID Date Sampled Parameter Result Units SWSL MDL NC2L Method
MW-2R 7/3/2012 1,1-Dichloroethane 0.20 J µg/l 5 0.2 6 EPA 8260B
MW-2R 1/30/2013 1,1-Dichloroethane 0.30 J µg/l 5 0.2 6 EPA 8260B
MW-2R 1/30/2014 1,1-Dichloroethane 0.50 J µg/l 5 0.2 6 EPA 8260B
MW-2R 7/22/2014 1,1-Dichloroethane 0.70 J µg/l 5 0.2 6 EPA 8260B
MW-2R 1/26/2015 1,1-Dichloroethane 0.70 J µg/l 5 0.2 6 EPA 8260B
MW-2R 7/28/2015 1,1-Dichloroethane 1.0 J µg/l 5 0.2 6 EPA 8260B
MW-2R 1/28/2016 1,1-Dichloroethane 0.80 J µg/l 5 0.4 6 EPA 8260B
MW-2R 7/28/2016 1,1-Dichloroethane 0.70 J µg/l 5 0.4 6 EPA 8260B
MW-2R 1/26/2017 1,1-Dichloroethane 1.2 J µg/l 5 0.4 6 EPA 8260B
MW-2R 7/8/2009 Acetone 7.7 µg/l 100 1.5 6000 EPA 8260B
MW-2R 7/15/2013 Acetone 15.0 J µg/l 100 1.6 6000 EPA 8260B
MW-2R 1/30/2014 Benzene 0.40 J µg/l 1 0.2 1 EPA 8260B
MW-2R 7/22/2014 Benzene 0.40 J µg/l 1 0.2 1 EPA 8260B
MW-2R 1/26/2015 Benzene 0.60 J µg/l 1 0.2 1 EPA 8260B
MW-2R 7/28/2015 Benzene 1.0 J µg/l 1 0.2 1 EPA 8260B
MW-2R 1/28/2016 Benzene 1.1 µg/l 1 0.2 1 EPA 8260B
MW-2R 3/16/2016 Benzene 1.0 J µg/l 1 0.2 1 EPA 8260B
MW-2R 7/28/2016 Benzene 1.0 µg/l 1 0.2 1 EPA 8260B
MW-2R 1/26/2017 Benzene 1.6 µg/l 1 0.2 1 EPA 8260B
MW-2R 2/28/2017 Benzene 1.6 µg/l 1 0.2 1 EPA 8260B
MW-2R 4/19/2017 Benzene 1.3 µg/l 1 0.2 1 EPA 8260B
MW-2R 5/23/2017 Benzene 1.7 µg/l 1 0.2 1 EPA 8260B
MW-2R 7/3/2012 cis-1,2-Dichloroethylene 0.20 J µg/l 5 0.2 70 EPA 8260B
MW-2R 1/30/2013 cis-1,2-Dichloroethylene 0.30 J µg/l 5 0.2 70 EPA 8260B
MW-2R 1/30/2014 cis-1,2-Dichloroethylene 0.70 J µg/l 5 0.2 70 EPA 8260B
MW-2R 7/22/2014 cis-1,2-Dichloroethylene 0.90 J µg/l 5 0.2 70 EPA 8260B
MW-2R 1/26/2015 cis-1,2-Dichloroethylene 1.1 J µg/l 5 0.2 70 EPA 8260B
MW-2R 7/28/2015 cis-1,2-Dichloroethylene 1.6 J µg/l 5 0.3 70 EPA 8260B
MW-2R 1/28/2016 cis-1,2-Dichloroethylene 1.7 J µg/l 5 0.5 70 EPA 8260B
MW-2R 7/28/2016 cis-1,2-Dichloroethylene 1.9 J µg/l 5 0.5 70 EPA 8260B
MW-2R 1/26/2017 cis-1,2-Dichloroethylene 2.9 J µg/l 5 0.7 70 EPA 8260B
MW-2R 7/22/2014 Methylene chloride 0.30 J µg/l 1 0.2 5 EPA 8260B
MW-2R 7/28/2015 Methylene chloride 0.60 J µg/l 1 0.3 5 EPA 8260B
MW-2R 1/26/2017 Methylene chloride 0.80 J µg/l 1 0.5 5 EPA 8260B
MW-2R 1/30/2014 Tetrachloroethylene 0.40 J µg/l 1 0.4 0.7 EPA 8260B
MW-2R 7/22/2014 Tetrachloroethylene 0.50 J µg/l 1 0.4 0.7 EPA 8260B
MW-2R 1/26/2015 Tetrachloroethylene 0.50 J µg/l 1 0.4 0.7 EPA 8260B
MW-2R 7/28/2015 Tetrachloroethylene 0.50 J µg/l 1 0.3 0.7 EPA 8260B
MW-2R 1/28/2016 Tetrachloroethylene 0.70 J µg/l 1 0.4 0.7 EPA 8260B
MW-2R 7/28/2016 Tetrachloroethylene 0.60 J µg/l 1 0.4 0.7 EPA 8260B
MW-2R 1/26/2015 Trichloroethylene 0.50 J µg/l 1 0.4 3 EPA 8260B
MW-2R 7/28/2015 Trichloroethylene 0.50 J µg/l 1 0.4 3 EPA 8260B
MW-2R 1/28/2016 Trichloroethylene 0.50 J µg/l 1 0.4 3 EPA 8260B
MW-2R 7/28/2016 Trichloroethylene 0.50 J µg/l 1 0.4 3 EPA 8260B
MW-2R 1/26/2017 Trichloroethylene 0.80 J µg/l 1 0.3 3 EPA 8260B
MW-2R 1/30/2013 Vinyl chloride 0.20 J µg/l 1 0.2 0.03 EPA 8260B
MW-2R 1/30/2014 Vinyl chloride 0.50 J µg/l 1 0.3 0.03 EPA 8260B
MW-2R 7/22/2014 Vinyl chloride 0.60 J µg/l 1 0.3 0.03 EPA 8260B
MW-2R 1/26/2015 Vinyl chloride 0.70 J µg/l 1 0.3 0.03 EPA 8260B
MW-2R 7/28/2015 Vinyl chloride 1.1 µg/l 1 0.4 0.03 EPA 8260B
MW-2R 9/2/2015 Vinyl chloride 0.80 J µg/l 1 0.4 0.03 EPA 8260B
MW-2R 1/28/2016 Vinyl chloride 1.0 µg/l 1 0.7 0.03 EPA 8260B
MW-2R 3/16/2016 Vinyl chloride 0.90 J µg/l 1 0.7 0.03 EPA 8260B
MW-2R 7/28/2016 Vinyl chloride 0.70 J µg/l 1 0.7 0.03 EPA 8260B
MW-2R 1/26/2017 Vinyl chloride 1.2 µg/l 1 0.6 0.03 EPA 8260B
MW-2R 2/28/2017 Vinyl chloride 1.8 µg/l 1 0.6 0.03 EPA 8260B
MW-2R 4/19/2017 Vinyl chloride 1.1 µg/l 1 0.6 0.03 EPA 8260B
MW-2R 5/23/2017 Vinyl chloride 1.1 µg/l 1 0.6 0.03 EPA 8260B
MW-2R 1/26/2015 Xylenes (Total) 0.80 J µg/l 5 0.5 500 EPA 8260B
MW-2R 1/28/2016 Xylenes (Total) 0.70 J µg/l 5 0.4 500 EPA 8260B
All concentrations are in micrograms per liter (µg/l). SWSL = NC Solid Waste Section Reporting Limit.
J = Estimated concentration below the SWSL. MDL = Method Detection Limit.
Bold results are exceedances of the NC2L.NC2L = North Carolina Groundwater Standards from 15A NCAC 2L.0202.
Note: If the SWSL is higher than the listed NC2L, the SWSL is considered the standard (i.e., J-flagged results are not exceedances).
Yellow highlighted results are verification/resampling events.
Republic Services, Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017
Result Result Result Result Result Result(µg/l) (mg/l) (µg/l) (mg/l) (µg/l) (mg/l)Alkalinity as CaCO3--- --- 72,000 72 3,700,000 3,700Ammonia as N ND ND ND ND 820,000 820Chloride 1,800 1.80 1,700 1.70 1,200,000 1,200Calcium 12,500 12.5 13,100 13.1 131,000 131Magnesium 2,070 2.07 1,880 1.88 82,800 82.8Sodium 11,100 11.1 11,500 11.5 917,000 917Dissolved Methane 4,200 4.20 4,200 4.20 --- ---Dissolved Ethane 0.036 0.000036 J 0.038 0.000038 J --- ---Dissolved Ethene 0.01 0.000010 J ND ND --- ---Dissolved CO2220,000 220 240,000 240 --- ---µg/l = micrograms per liter.mg/l = milligrams per liter.J = Estimated concentration below the quantitation limit.TABLE 2: Indicator Parameters and Dissolved Gasses.MW-2R on 4/19/2017ParameterMW-2R on 5/23/2017 Leachate on 5/23/2017Republic Services, Foothills LandfillPermit # 14-03Joyce EngineeringJune 2017
TABLE 3: Comparison of VOCs in MW-2R and Leachate
Date Sampled Parameter MW-2R Leachate
1/26/2017 1,1-Dichloroethane 1.2 J 1.8
1/26/2017 1,4-Dichlorobenzene ND 7
1/26/2017 4-Methyl-2-pentanone (MIBK) ND 80 J
1/26/2017 Acetone ND 5,900
1/26/2017 Benzene 1.6 8.8
1/26/2017 Chlorobenzene ND 0.6 J
1/26/2017 Chloroform ND 1.5 J
1/26/2017 cis-1,2-Dichloroethylene 2.9 J ND
1/26/2017 Ethylbenzene ND 44
1/26/2017 Methyl Ethyl Ketone (2-Butanone) ND 3,800
1/26/2017 Methylene chloride 0.80 J ND
1/26/2017 Styrene ND 2.1
1/26/2017 Toluene ND 21
1/26/2017 Trichloroethylene 0.80 J ND
1/26/2017 Vinyl chloride 1.2 0.8 J
1/26/2017 Xylenes, total ND 68
5/23/2017 Benzene 1.7 7.1
5/23/2017 Vinyl chloride 1.1 ND
All concentrations are in micrograms per liter (µg/l).
J = Estimated concentration below the SWSL.
Bold results are exceedances of the NC2L.
Republic Services, Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017

CHARTS

Republic Services, Foothills LandfillPermit 14-03Joyce EngineeringJune 20171,1‐Dichloroethane1,4‐DichlorobenzeneMIBKAcetoneBenzeneChlorobenzeneChloroformcis‐1,2‐DichloroethyleneEthylbenzene2‐ButanoneMethylenechlorideStyreneTolueneTrichloroethyleneVinylchlorideXylenes, totalMW‐2R1.2 0 0 0 1.6 0 0 2.9 0 0 0.80 0 0 0.80 1.2 0Leachate1.8 7 80 5,900 8.8 0.6 1.5 0.0 44 3,800 0.00 2.1 21 0.00 0.8 680.02.04.06.08.010.012.014.016.018.020.022.0Detected Concentration  (µg/l)Chart 1:  Comparison of MW‐2R VOC results with Leachate (Sample Date 1/26/2017)
Republic Services, Foothills Landfill Joyce Engineering
Permit # 14-03 June 2017

Chart 2: Stiff Diagrams for MW-2R and Leachate

Based on analyses of May 23, 2017, samples. Results in mg/l (ppm).

DRAWING

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130012901180MW-51127.32SW-2MW-41129.18MW-3R21205.63MW-31188.15MW-3R1184.94MW-2R1209.06MW-1ABSW-1SW-3SW-4114011601180 1200 122012401240
12201200MW-61129.10UD-1i1114011601180i2EXISTINGCELL NO. 1BEXISTINGCELL NO. 1AEXISTINGCELL NO. 2BEXISTINGCELL NO. 2APHASE 2PHASE 1EXISTINGCELL NO. 3BEXISTINGCELL NO. 4EXISTINGCELL NO. 3CMW-71150.33EXISTINGCELL NO. 3AMW-81159.48EXISTINGCELL NO. 8AUD-2MW-101282.83MW-1R1525.111120112011401
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EXISTINGCELL NO. 5A(UNDERCONSTRUCTION)FUTURECELL NO. 5BMW-91224.4911201120SITE710MW-XSW-XPROPERTY LINEEXISTING 10' TOPOGRAPHIC CONTOUREXISTING 2' TOPOGRAPHIC CONTOUREXISTING ROADGROUNDWATER SURFACE CONTOUR[FEET ABOVE MEAN SEA LEVEL (AMSL)]GROUNDWATER FLOW DIRECTIONTREE LINEGROUNDWATER MONITORING WELL LOCATION AND IDENTIFICATIONWITH STATIC WATER LEVEL ELEVATION (FEET AMSL)SURFACE MONITORING POINT LOCATION AND IDENTIFICATIONGROUNDWATER MONITORING WELLLOCATION AND IDENTIFICATION WHERE STATIC WATER LEVELELEVATION IS NOT MEASUREDSEGMENT USED FOR GRADIENT CALCULATION1.TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET2.GROUNDWATER CONTOUR INTERVAL = 20 FEET3.STATIC WATER LEVELS WERE MEASURED ON 01/26/17.4.GROUNDWATER CONTOURS BASED ON LINEARINTERPOLATION BETWEEN AND EXTRAPOLATION FROMKNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWNFIELD CONDITIONS. THEREFORE, GROUNDWATERCONTOURS MAY NOT REFLECT ACTUAL GROUNDWATERCONDITIONS.5.THIS MAP COMPILED BY COOPER AERIAL SURVEYORS BYPHOTOGRAMMETRIC METHODS FROM AERIALPHOTOGRAPHY DATED 1-20-2014. GRID BASED ON NORTHCAROLINA STATE PLANE COORDINATE SYSTEM NAD 1983.VERTICAL DATUM BASED ON NAVD 1988.iLEGEND1280NOTESNMMW- XELEVFLOW PATH LENGTHii= 996 LF= 1,520 LF= 2,400 LFiPROJECT NO.APPROVED
CHECKED
DRAWN
DESIGNED
DATE
DATE REVISIONS AND RECORD OF ISSUE BYNO APPCKSCALE All rights reserved.
Ó Joyce Engineering, Inc.DRAWING NO.L:\Republic NC\Foothills\GW maps\SUMMER 2017 FOOTHILLS WITH 2017 MAPPING BASE MAP GW Map.dwg Layout=Layout1
2211 W. MEADOWVIEW ROAD
GREENSBORO, NC 27407
PHONE: [phone]
NC CORP LIC: C-0782890FOOTHILLS ENVIRONMENTAL LANDFILL
CALDWELL COUNTY, NORTH CAROLINA
20171AS SHOWNPOTENTIOMETRIC SURFACE CONTOUR MAP
JANUARY 26, 2017
PERMIT NO.14-03
GE
RWH
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GVB
2/21/17 VICINITY MAPSOURCE: U.S.G.S. 7.5 MINUTE TOPO FORLENOIR, NC0(FEET)GRAPHIC SCALE400200100

APPENDIX A

Laboratory Reports, Chains of Custody, and Sampling Logs
April 2017 and May 2017 Sampling Events

PACE ANALYTICAL SERVICES, LLC.Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]Republic Services of North Carolina, LLCProject: Foothills Environmental Landfill ResampleConover, NC 286131220 Commerce Street, SWMr. Derek BouchardWe appreciate the opportunity to provide the analytical support for your project. The analytical results in this report are based upon information supplied by you, the client, and are for your exclusive use. If you have any questions regarding this data package, please do not hesitate to call. Pace Analytical Services, LLC. certifies that the following analytical results meet all requirements of the National Environmental Laboratory Accreditation Conference(NELAC).All test results relate only to the samples analyzed.Laboratory ReportProject #:MW2RPrepared For:Attention:May 01, 2017Report Number:AAD0722Approved:This report may not be reproduced, except in full, without written approval from Pace Analytical Services, LLC.Page 1 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017Sample IDLaboratory IDMatrixDate SampledANALYTICAL REPORT FOR SAMPLESDate Received1403-MW2RAAD0722-0104/19/17 13:32 04/20/17 09:20Ground Water1403-Trip BlankAAD0722-0204/19/17 09:30 04/20/17 09:20Ground WaterPage 2 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017The Dissolved Gases analysis by method AM20GAX was performed by Pace Engineering-Pittsburgh, 200 William Pitt Way, Pittsburgh PA 15238. The Pace Engineering-Pittsburgh lab contact is Ruth Welsh at 412-826-4482.Case NarrativePage 3 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017ResultAnalyteSWSL/ RLPrepMethodQual DFUnitsBatchAnalyticalMethodMDLCAS #Prep Date/TimeAnalysis Date/TimeClient ID:Date/Time Sampled:Matrix:Report No.:Lab No:Date/Time Received:1403-MW2RGround WaterAAD0722-01AAD072204/19/17 13:32Project:Foothills Environmental Landfill Resample04/20/17 09:20General ChemistryNDEPA 350.1ug/L1Ammonia as N1007040776EPA 350.1100NA04/26/17 11:2404/26/17 10:00Inorganic AnionsEPA 9056A1800ug/L1Chloride10007040702EPA 9056A100016887-00-604/25/17 15:2804/23/17 18:02Metals, TotalEPA 6020B12500ug/L10Calcium10007040743EPA 3005A1047440-70-204/28/17 14:3504/25/17 09:50EPA 6020B2070ug/L1Magnesium50.07040743EPA 3005A4.017439-95-404/26/17 22:1404/25/17 09:50EPA 6020B11100ug/L10Sodium10007040743EPA 3005A1137440-23-504/28/17 14:3504/25/17 09:50Volatile Organic Compounds by EPA 8260EPA 8260B1.3ug/L1Benzene1.07040658EPA 5030B0.271-43-204/20/17 22:5304/20/17 09:00EPA 8260B1.1ug/L1Vinyl Chloride1.07040658EPA 5030B0.675-01-404/20/17 22:5304/20/17 09:00EPA 8260B88 %Surr: Dibromofluoromethane7040658EPA 5030B1868-53-704/20/17 22:5304/20/17 09:0080-120EPA 8260B102 %Surr: 1,2-Dichloroethane-d47040658EPA 5030B17060-07-004/20/17 22:5304/20/17 09:0078-120EPA 8260B107 %Surr: Toluene-d87040658EPA 5030B2037-26-504/20/17 22:5304/20/17 09:0080-120EPA 8260B107 %Surr: 4-Bromofluorobenzene7040658EPA 5030B460-00-404/20/17 22:5304/20/17 09:0080-120Page 4 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017ResultAnalyteSWSL/ RLPrepMethodQual DFUnitsBatchAnalyticalMethodMDLCAS #Prep Date/TimeAnalysis Date/TimeClient ID:Date/Time Sampled:Matrix:Report No.:Lab No:Date/Time Received:1403-Trip BlankGround WaterAAD0722-02AAD072204/19/17 09:30Project:Foothills Environmental Landfill Resample04/20/17 09:20Volatile Organic Compounds by EPA 8260NDEPA 8260Bug/L1Benzene1.07040658EPA 5030B0.271-43-204/20/17 22:2804/20/17 09:00NDEPA 8260Bug/L1Vinyl Chloride1.07040658EPA 5030B0.675-01-404/20/17 22:2804/20/17 09:00EPA 8260B90 %Surr: Dibromofluoromethane7040658EPA 5030B1868-53-704/20/17 22:2804/20/17 09:0080-120EPA 8260B102 %Surr: 1,2-Dichloroethane-d47040658EPA 5030B17060-07-004/20/17 22:2804/20/17 09:0078-120EPA 8260B108 %Surr: Toluene-d87040658EPA 5030B2037-26-504/20/17 22:2804/20/17 09:0080-120EPA 8260B103 %Surr: 4-Bromofluorobenzene7040658EPA 5030B460-00-404/20/17 22:2804/20/17 09:0080-120Page 5 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteGeneral Chemistry - Quality ControlBatch 7040776 - EPA 350.1Blank (7040776-BLK1)Prepared & Analyzed: 04/26/17 Ammonia as Nug/LND100LCS (7040776-BS1)Prepared & Analyzed: 04/26/17 Ammonia as Nug/L100001001000090-110100Matrix Spike (7040776-MS1)Prepared & Analyzed: 04/26/17 Source: AAD0716-01Ammonia as Nug/L1010010010000ND90-110101Matrix Spike (7040776-MS2)Prepared & Analyzed: 04/26/17 Source: AAD0716-02Ammonia as Nug/L973010010000ND90-11097Page 6 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteInorganic Anions - Quality ControlBatch 7040702 - EPA 9056ABlank (7040702-BLK1)Prepared: 04/23/17 Analyzed: 04/25/17 Chlorideug/LND1000LCS (7040702-BS1)Prepared: 04/23/17 Analyzed: 04/25/17 Chlorideug/L1040010001001090-110104Matrix Spike (7040702-MS1)Prepared: 04/23/17 Analyzed: 04/25/17 Source: AAD0678-01Chlorideug/L4620010001001040100QM-0290-11061Matrix Spike (7040702-MS2)Prepared: 04/23/17 Analyzed: 04/25/17 Source: AAD0754-38Chlorideug/L19200100010010894090-110102Matrix Spike Dup (7040702-MSD1)Prepared: 04/23/17 Analyzed: 04/25/17 Source: AAD0678-01Chlorideug/L462001000100104010015QM-0290-110600.08Page 7 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteMetals, Total - Quality ControlBatch 7040743 - EPA 3005ABlank (7040743-BLK1)Prepared: 04/25/17 Analyzed: 04/26/17 Calciumug/LND100Magnesiumug/LND50.0Sodiumug/LND100LCS (7040743-BS1)Prepared: 04/25/17 Analyzed: 04/26/17 Calciumug/L10101001000.080-120101Magnesiumug/L110050.01000.080-120110Sodiumug/L11001001000.080-120110Matrix Spike (7040743-MS1)Prepared: 04/25/17 Analyzed: 04/28/17 Source: AAD0722-01Calciumug/L1380010001000.01250075-125123Magnesiumug/L291050.01000.0207075-12584Sodiumug/L1220010001000.01110075-125114Matrix Spike Dup (7040743-MSD1)Prepared: 04/25/17 Analyzed: 04/28/17 Source: AAD0722-01Calciumug/L1360010001000.0125002075-1251081Magnesiumug/L287050.01000.020702075-125801Sodiumug/L1200010001000.0111002075-125862Post Spike (7040743-PS1)Prepared: 04/25/17 Analyzed: 04/28/17 Source: AAD0722-01Calciumug/L132001000.012500QM-0280-12069Magnesiumug/L30601000.0207080-12099Sodiumug/L123001000.01110080-120117Page 8 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteVolatile Organic Compounds by EPA 8260 - Quality ControlBatch 7040658 - EPA 5030BBlank (7040658-BLK1)Prepared & Analyzed: 04/20/17 Benzeneug/LND1.0Vinyl Chlorideug/LND1.0ug/L50.00080-120Surr: Dibromofluoromethane9045ug/L50.00078-120Surr: 1,2-Dichloroethane-d49949ug/L50.00080-120Surr: Toluene-d810753ug/L50.00080-120Surr: 4-Bromofluorobenzene10553LCS (7040658-BS1)Prepared & Analyzed: 04/20/17 Benzeneug/L4350.00067-13486Chlorobenzeneug/L4650.00069-122921,1-Dichloroetheneug/L4650.00058-14293Tolueneug/L4350.00068-12787Trichloroetheneug/L4550.00072-13290ug/L50.00080-120Surr: Dibromofluoromethane9347ug/L50.00078-120Surr: 1,2-Dichloroethane-d49949ug/L50.00080-120Surr: Toluene-d810552ug/L50.00080-120Surr: 4-Bromofluorobenzene10653Matrix Spike (7040658-MS1)Prepared: 04/20/17 Analyzed: 04/21/17 Source: AAD0707-05Benzeneug/L4150.0000.067-13483Chlorobenzeneug/L4450.0000.069-122871,1-Dichloroetheneug/L5150.0000.058-142102Tolueneug/L4250.0000.068-12784Trichloroetheneug/L4350.0000.072-13285ug/L50.00080-120Surr: Dibromofluoromethane9246Page 9 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteVolatile Organic Compounds by EPA 8260 - Quality ControlBatch 7040658 - EPA 5030BMatrix Spike (7040658-MS1)Prepared: 04/20/17 Analyzed: 04/21/17 Source: AAD0707-05ug/L50.00078-120Surr: 1,2-Dichloroethane-d410251ug/L50.00080-120Surr: Toluene-d810553ug/L50.00080-120Surr: 4-Bromofluorobenzene10452Matrix Spike Dup (7040658-MSD1)Prepared: 04/20/17 Analyzed: 04/21/17 Source: AAD0707-05Benzeneug/L4350.0000.0967-134863Chlorobenzeneug/L4750.0000.01369-1229471,1-Dichloroetheneug/L5350.0000.0958-1421064Tolueneug/L4550.0000.0968-127907Trichloroetheneug/L4650.0000.01172-132928ug/L50.00080-120Surr: Dibromofluoromethane8844ug/L50.00078-120Surr: 1,2-Dichloroethane-d410351ug/L50.00080-120Surr: Toluene-d810753ug/L50.00080-120Surr: 4-Bromofluorobenzene10653Page 10 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017Laboratory CertificationsCodeDescriptionNumberExpires812Georgia DW Inorganics Eff: 07/01/201606/30/2017GADW812Georgia DW Microbiology Eff: 07/01/201505/09/2017GADWM381North Carolina12/31/2017NCE87315FL DOH (Non-Pot. Water, Solids) Eff:: 07/01/201606/30/2017NELACE87315FL DOH NELAC (Drinking Water) Eff: 07/01/201606/30/2017NELDW98011001South Carolina06/30/2017SCT104704397-08-TXTexas03/31/2018TX460204Virginia12/14/2017VAPage 11 of 14
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardMay 01, 2017LegendDefination of Laboratory Terms - Not Detected at levels greater than or equal to SWSL/RLNDSWSL/RLMDL - NC DENR Solid Waste Section LImit/Reporting Limit (Adjusted for DF/Prep Factor) - Method Detection LimitQualifiers - Dilution FactorDFQM-02The spike recovery is outside acceptance limits due to insignificant spike amount as compared to sample concentration.Note: Unless otherwise noted, all results are reported on an as received basis.Page 12 of 14
Page 13 of 14
LOG-IN CHECKLIST
Republic Services of North Carolina, LLC
Foothills Environmental Landfill ResampleProject:
Client:
Printed: 4/24/2017 2:32:19PM
Environmental Monitoring & Laboratory Analysis
[phone] FAX [phone]
110 Technology Parkway, Peachtree Corners, GA 30092
PACE ANALYTICAL SERVICES, LLC.
Date Received:04/20/17 09:20 Logged In By:Charles Hawks
Work Order:AAD0722
OBSERVATIONS
Attn: Mr. Derek Bouchard
#Samples: 2 #Containers: 11
1.0 1.0
YES
Minimum Temp(C):Maximum Temp(C):
CHECKLIST ITEMS
COC included with Samples
Sample Container(s) Intact
Chain of Custody Complete
Sample Container(s) Match COC
Custody seal Intact
Temperature in Compliance
Sufficient Sample Volume for Analysis
Zero Headspace Maintained for VOA Analyses
Samples labeled preserved (If Applicable)
Samples received within Allowable Hold Times
Samples Received on Ice
Preservation Confirmed
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Custody Seal(s) Used:
Comments:
Page 1 of 1Page 14 of 14
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22398 - 918000 Page 1 of 8
Betsy McDaniel
Pace Analytical Atlanta110 Technology Parkway
Norcross, GA 30092USA
April 28, 2017
RE:
Pace Workorder:
GA / AAD0722
Dear Betsy McDaniel:
22398
Enclosed are the analytical results for sample(s) received by the laboratory on Friday, April 21, 2017. Results
reported herein conform to the most current NELAC standards, where applicable, unless otherwise narrated inthe body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Enclosures
Ruth Welsh 04/28/[e-mail]
Total Number of Pages ____
As a valued client we would appreciate your comments on our service.
Please email [e-mail].
Customer Service Representative
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
10
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22398 - 918000 Page 2 of 8
LABORATORY ACCREDITATIONS & CERTIFICATIONS
Pennsylvania Department of Environmental Protection, Bureau of Laboratories
02-00538
NELAP Non-Potable Water and Solid & Hazardous Waste
Accreditor:
Accreditation ID:
Scope:
West Virginia Department of Environmental Protection, Division of Water and Waste
Management
395
Non-Potable Water
Accreditor:
Accreditation ID:
Scope:
South Carolina Department of Health and Environmental Control, Office of EnvironmentalLaboratory Certification
89009003
Clean Water Act (CWA); Resource Conservation and Recovery Act (RCRA)
Accreditor:
Accreditation ID:
Scope:
NELAP: New Jersey, Department of Environmental Protection
PA026
Non-Potable Water; Solid and Chemical Materials
Accreditor:
Accreditation ID:
Scope:
NELAP: New York, Department of Health Wadsworth Center
11815
Non-Potable Water; Solid and Hazardous Waste
Accreditor:
Accreditation ID:
Scope:
State of Connecticut, Department of Public Health, Division of Environmental Health
PH-0263
Clean Water Act (CWA) Resource Conservation and Recovery Act (RCRA)
Accreditor:
Accreditation ID:
Scope:
NELAP: Texas, Commission on Environmental Quality
T104704453-09-TX
Non-Potable Water
Accreditor:
Accreditation ID:
Scope:
State of New Hampshire
299409
Non-potable water
Accreditor:
Accreditation ID:
Scope:
State of Georgia
Chapter 391-3-26
As per the Georgia EPD Rules and Regulations for Commercial Laboratories, PAES isaccredited by the Pennsylvania Department of Environmental Protection Bureau of
Laboratories under the National Environmental Laboratory Approval Program (NELAC).
Accreditor:
Accreditation ID:
Scope:
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22398 - 918000 Page 3 of 8
SAMPLE SUMMARY
Workorder:22398 GA / AAD0722
Lab ID Sample ID Matrix Date Collected Date Received
223980001 1403-MW2R Water 4/19/2017 13:32 4/21/2017 14:42
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22398 - 918000 Page 4 of 8
ANALYTICAL RESULTS
Workorder:22398 GA / AAD0722
4/21/2017 14:42
1403-MW2R
Matrix:Water
RegLmtParameters
Lab ID:
Sample ID:
RegLmt
223980001
Results Units PQL DF ByAnalyzedMDL Qualifiers
Date Collected:
Date Received:
4/19/2017 13:32
RISK - PAES
Analysis Desc: AM20GAX Analytical Method: AM20GAX
Methane 4200 ug/l 0.50 1 4/28/2017 08:32 TD n0.027
Ethane 0.036J ug/l 0.10 1 4/28/2017 08:32 TD n0.0070
Ethene 0.10 U ug/l 0.10 1 4/28/2017 08:32 TD n0.0090
Carbon Dioxide 220 mg/l 5.0 1 4/28/2017 08:32 TD n0.24
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22398 - 918000 Page 5 of 8
ANALYTICAL RESULTS QUALIFIERS
Workorder:22398 GA / AAD0722
DEFINITIONS/QUALIFIERS
U
J
Indicates the compound was analyzed for, but not detected at or above the noted concentration.
Estimated concentration greater than the set method detection limit (MDL) and less than the set reporting limit (PQL).
MDL Method Detection Limit. Can be used synonymously with LOD; Limit Of Detection.
PQL Practical Quanitation Limit. Can be used synonymously with LOQ; Limit Of Quantitation.
ND Not detected at or above reporting limit.
DF Dilution Factor.
S Surrogate.
RPD Relative Percent Difference.
% Rec Percent Recovery.
The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22398 - 918000 Page 6 of 8
QUALITY CONTROL DATA
Workorder:22398 GA / AAD0722
QC Batch:
QC Batch Method:
DISG/6074
AM20GAX
Analysis Method:AM20GAX
Associated Lab Samples:223980001
METHOD BLANK:48453
Parameter Units Result
Blank
Limit
Reporting
Qualifiers
RISK
Methane 0.50 Uug/l 0.50 n
Ethane 0.10 Uug/l 0.10 n
Ethene 0.10 Uug/l 0.10 n
METHOD BLANK:48454
Parameter Units Result
Blank
Limit
Reporting
Qualifiers
RISK
Carbon Dioxide 5.0 Umg/l 5.0 n
LABORATORY CONTROL SAMPLE & LCSD:
Parameter Units Conc.
Spike
Result
LCS
48455 48457
LCSD
Result % Rec
LCS LCSD
% Rec
% Rec
Limit RPD RPD
Max
Qualifiers
RISK
Methane ug/l 750 830 111 80-120 n890119720
Ethane ug/l 38 40 104 80-120 n401061.9 20
Ethene ug/l 35 37 105 80-120 n381071.9 20
LABORATORY CONTROL SAMPLE & LCSD:
Parameter Units Conc.
Spike
Result
LCS
48456 48458
LCSD
Result % Rec
LCS LCSD
% Rec
% Rec
Limit RPD RPD
Max
Qualifiers
RISK
Carbon Dioxide mg/l 120 130 114 80-120 n1401172.6 20
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22398 - 918000 Page 7 of 8
QUALITY CONTROL DATA QUALIFIERS
Workorder:22398 GA / AAD0722
QUALITY CONTROL PARAMETER QUALIFIERS
The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22398 - 918000 Page 8 of 8
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Workorder:22398 GA / AAD0722
Lab ID Sample ID Prep Method Analysis MethodPrep Batch Batch
Analysis
223980001 1403-MW2R DISG/6074AM20GAX
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
PACE ANALYTICAL SERVICES, LLC.Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]Republic Services of North Carolina, LLCProject: Foothills Environmental Landfill ResampleConover, NC 286131220 Commerce Street, SWMr. Derek BouchardWe appreciate the opportunity to provide the analytical support for your project. The analytical results in this report are based upon information supplied by you, the client, and are for your exclusive use. If you have any questions regarding this data package, please do not hesitate to call. Pace Analytical Services, LLC. certifies that the following analytical results meet all requirements of the National Environmental Laboratory Accreditation Conference(NELAC).All test results relate only to the samples analyzed.Laboratory ReportProject #:MW2R/LeachatePrepared For:Attention:June 07, 2017Report Number:AAE0795Approved:This report may not be reproduced, except in full, without written approval from Pace Analytical Services, LLC.Page 1 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017Sample IDLaboratory IDMatrixDate SampledANALYTICAL REPORT FOR SAMPLESDate Received1403-MW2RAAE0795-0105/23/17 13:15 05/24/17 09:20Ground Water1403-LeachateAAE0795-0205/23/17 13:40 05/24/17 09:20Water1403-Trip BlankAAE0795-0305/23/17 10:00 05/24/17 09:20WaterPage 2 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017The Methane and Carbon Dioxide by AM20GAX analysis were performed by Pace Analytical Energy Services, LLC, 220 William Pitt Way, Pittsburgh, PA 15238. The lab contact is Ruth Welsh at Telephone [phone]. Please see the included subcontractor report.Case NarrativePage 3 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017ResultAnalyteSWSL/ RLPrepMethodQual DFUnitsBatchAnalyticalMethodMDLCAS #Prep Date/TimeAnalysis Date/TimeClient ID:Date/Time Sampled:Matrix:Report No.:Lab No:Date/Time Received:1403-MW2RGround WaterAAE0795-01AAE079505/23/17 13:15Project:Foothills Environmental Landfill Resample05/24/17 09:20General ChemistrySM 2320 B72000ug/L1Alkalinity as CaCO310007060013SM 2320 B1000ALK06/01/17 14:1506/01/17 14:15NDEPA 350.1ug/L1Ammonia as N1007050889EPA 350.1100NA05/27/17 13:2705/27/17 12:00Inorganic AnionsEPA 9056A1700ug/L1Chloride10007050888EPA 300.0100016887-00-606/06/17 12:0705/26/17 13:00Metals, TotalEPA 6020B13100ug/L50Calcium5000B-017050803EPA 3005A5227440-70-205/26/17 19:5505/24/17 17:50EPA 6020B1880ug/L1Magnesium50.07050803EPA 3005A4.017439-95-405/26/17 19:4905/24/17 17:50EPA 6020B11500ug/L50Sodium50007050803EPA 3005A5657440-23-505/26/17 19:5505/24/17 17:50Volatile Organic Compounds by EPA 8260EPA 8260B1.7ug/L1Benzene1.07050880EPA 5030B0.271-43-205/25/17 22:2805/25/17 14:00EPA 8260B1.1ug/L1Vinyl Chloride1.07050880EPA 5030B0.675-01-405/25/17 22:2805/25/17 14:00EPA 8260B93 %Surr: Dibromofluoromethane7050880EPA 5030B1868-53-705/25/17 22:2805/25/17 14:0080-120EPA 8260B101 %Surr: 1,2-Dichloroethane-d47050880EPA 5030B17060-07-005/25/17 22:2805/25/17 14:0078-120EPA 8260B99 %Surr: Toluene-d87050880EPA 5030B2037-26-505/25/17 22:2805/25/17 14:0080-120EPA 8260B105 %Surr: 4-Bromofluorobenzene7050880EPA 5030B460-00-405/25/17 22:2805/25/17 14:0080-120Page 4 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017ResultAnalyteSWSL/ RLPrepMethodQual DFUnitsBatchAnalyticalMethodMDLCAS #Prep Date/TimeAnalysis Date/TimeClient ID:Date/Time Sampled:Matrix:Report No.:Lab No:Date/Time Received:1403-LeachateWaterAAE0795-02AAE079505/23/17 13:40Project:Foothills Environmental Landfill Resample05/24/17 09:20General ChemistrySM 2320 B3700000ug/L1Alkalinity as CaCO310007060013SM 2320 B1000ALK06/01/17 14:1506/01/17 14:15EPA 350.1820000ug/L50Ammonia as N50007050889EPA 350.15000NA05/27/17 13:2905/27/17 12:00Inorganic AnionsEPA 9056A1200000ug/L200Chloride2000007050888EPA 300.020000016887-00-606/06/17 12:2805/26/17 13:00Metals, TotalEPA 6020B131000ug/L50Calcium5000B-017050803EPA 3005A5227440-70-205/26/17 20:1205/24/17 17:50EPA 6020B82800ug/L50Magnesium25007050803EPA 3005A2017439-95-405/26/17 20:1205/24/17 17:50EPA 6020B917000ug/L500Sodium500007050803EPA 3005A56507440-23-506/01/17 08:3505/24/17 17:50Volatile Organic Compounds by EPA 8260EPA 8260B7.1ug/L1Benzene1.07050880EPA 5030B0.271-43-205/26/17 00:5605/25/17 14:00NDEPA 8260Bug/L1Vinyl Chloride1.07050880EPA 5030B0.675-01-405/26/17 00:5605/25/17 14:00EPA 8260B80 %Surr: Dibromofluoromethane7050880EPA 5030B1868-53-705/26/17 00:5605/25/17 14:0080-120EPA 8260B101 %Surr: 1,2-Dichloroethane-d47050880EPA 5030B17060-07-005/26/17 00:5605/25/17 14:0078-120EPA 8260B102 %Surr: Toluene-d87050880EPA 5030B2037-26-505/26/17 00:5605/25/17 14:0080-120EPA 8260B101 %Surr: 4-Bromofluorobenzene7050880EPA 5030B460-00-405/26/17 00:5605/25/17 14:0080-120Page 5 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017ResultAnalyteSWSL/ RLPrepMethodQual DFUnitsBatchAnalyticalMethodMDLCAS #Prep Date/TimeAnalysis Date/TimeClient ID:Date/Time Sampled:Matrix:Report No.:Lab No:Date/Time Received:1403-Trip BlankWaterAAE0795-03AAE079505/23/17 10:00Project:Foothills Environmental Landfill Resample05/24/17 09:20Volatile Organic Compounds by EPA 8260NDEPA 8260Bug/L1Benzene1.07050880EPA 5030B0.271-43-205/25/17 17:3205/25/17 14:00NDEPA 8260Bug/L1Vinyl Chloride1.07050880EPA 5030B0.675-01-405/25/17 17:3205/25/17 14:00EPA 8260B92 %Surr: Dibromofluoromethane7050880EPA 5030B1868-53-705/25/17 17:3205/25/17 14:0080-120EPA 8260B100 %Surr: 1,2-Dichloroethane-d47050880EPA 5030B17060-07-005/25/17 17:3205/25/17 14:0078-120EPA 8260B99 %Surr: Toluene-d87050880EPA 5030B2037-26-505/25/17 17:3205/25/17 14:0080-120EPA 8260B107 %Surr: 4-Bromofluorobenzene7050880EPA 5030B460-00-405/25/17 17:3205/25/17 14:0080-120Page 6 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteGeneral Chemistry - Quality ControlBatch 7050889 - EPA 350.1Blank (7050889-BLK1)Prepared & Analyzed: 05/27/17 Ammonia as Nug/LND100LCS (7050889-BS1)Prepared & Analyzed: 05/27/17 Ammonia as Nug/L98901001000090-11099Matrix Spike (7050889-MS1)Prepared & Analyzed: 05/27/17 Source: AAE0923-07Ammonia as Nug/L99701001000016490-11098Matrix Spike (7050889-MS2)Prepared & Analyzed: 05/27/17 Source: AAE0795-01Ammonia as Nug/L1080010010000ND90-110108Batch 7060013 - SM 2320 BBlank (7060013-BLK1)Prepared & Analyzed: 06/01/17 Alkalinity as CaCO3ug/LND1000LCS (7060013-BS1)Prepared & Analyzed: 06/01/17 Alkalinity as CaCO3ug/L103000100010000085-115103Duplicate (7060013-DUP1)Prepared & Analyzed: 06/01/17 Source: AAE0795-01Alkalinity as CaCO3ug/L72000100072000100Page 7 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteInorganic Anions - Quality ControlBatch 7050888 - EPA 300.0Blank (7050888-BLK1)Prepared & Analyzed: 05/26/17 Chlorideug/LND1000LCS (7050888-BS1)Prepared & Analyzed: 05/26/17 Chlorideug/L1040010001002090-110104Matrix Spike (7050888-MS1)Prepared & Analyzed: 05/26/17 Source: AAE0833-24Chlorideug/L3000010001002022100QM-0290-11079Matrix Spike (7050888-MS2)Prepared: 05/26/17 Analyzed: 05/27/17 Source: AAE0882-01Chlorideug/L14800100010020428090-110105Matrix Spike Dup (7050888-MSD1)Prepared & Analyzed: 05/26/17 Source: AAE0833-24Chlorideug/L300001000100202210015QM-0290-110790.2Page 8 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteMetals, Total - Quality ControlBatch 7050803 - EPA 3005ABlank (7050803-BLK1)Prepared: 05/24/17 Analyzed: 05/26/17 Calciumug/L12.6100JMagnesiumug/LND50.0Sodiumug/LND100LCS (7050803-BS1)Prepared: 05/24/17 Analyzed: 05/26/17 Calciumug/L10501001000.080-120105Magnesiumug/L99850.01000.080-120100Sodiumug/L10201001000.080-120102Matrix Spike (7050803-MS1)Prepared: 05/24/17 Analyzed: 05/26/17 Source: AAE0826-01Calciumug/L6280050001000.064400QM-0275-1250Magnesiumug/L4020025001000.03920075-12599Sodiumug/L835050001000.0713075-125121Matrix Spike Dup (7050803-MSD1)Prepared: 05/24/17 Analyzed: 05/26/17 Source: AAE0826-01Calciumug/L6340050001000.06440020QM-0275-12500.9Magnesiumug/L3950025001000.03920020QM-0275-125362Sodiumug/L812050001000.071302075-125983Post Spike (7050803-PS1)Prepared: 05/24/17 Analyzed: 05/26/17 Source: AAE0826-01Calciumug/L628001000.064400QM-0280-1200Magnesiumug/L397001000.039200QM-0280-12052Sodiumug/L81201000.0713080-12098Page 9 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteVolatile Organic Compounds by EPA 8260 - Quality ControlBatch 7050880 - EPA 5030BBlank (7050880-BLK1)Prepared & Analyzed: 05/25/17 Benzeneug/LND1.0Vinyl Chlorideug/LND1.0ug/L50.00080-120Surr: Dibromofluoromethane9045ug/L50.00078-120Surr: 1,2-Dichloroethane-d410050ug/L50.00080-120Surr: Toluene-d89949ug/L50.00080-120Surr: 4-Bromofluorobenzene10753LCS (7050880-BS1)Prepared & Analyzed: 05/25/17 Benzeneug/L5850.00067-134117Chlorobenzeneug/L5950.00069-1221191,1-Dichloroetheneug/L5550.00058-142110Tolueneug/L5750.00068-127114Trichloroetheneug/L6250.00072-132125ug/L50.00080-120Surr: Dibromofluoromethane9648ug/L50.00078-120Surr: 1,2-Dichloroethane-d410151ug/L50.00080-120Surr: Toluene-d810050ug/L50.00080-120Surr: 4-Bromofluorobenzene10552Matrix Spike (7050880-MS1)Prepared & Analyzed: 05/25/17 Source: AAE0688-01Benzeneug/L6250.0002.267-134119Chlorobenzeneug/L14050.00073QM-0569-1221391,1-Dichloroetheneug/L5650.0000.058-142111Tolueneug/L5750.0000.068-127114Trichloroetheneug/L6250.0000.072-132124ug/L50.00080-120Surr: Dibromofluoromethane9347Page 10 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017ResultLimitReportingUnitsLevelSpikeResultSource%REC%RECLimitsRPDRPDLimitQual AnalyteVolatile Organic Compounds by EPA 8260 - Quality ControlBatch 7050880 - EPA 5030BMatrix Spike (7050880-MS1)Prepared & Analyzed: 05/25/17 Source: AAE0688-01ug/L50.00078-120Surr: 1,2-Dichloroethane-d410452ug/L50.00080-120Surr: Toluene-d89749ug/L50.00080-120Surr: 4-Bromofluorobenzene10553Matrix Spike Dup (7050880-MSD1)Prepared & Analyzed: 05/25/17 Source: AAE0688-01Benzeneug/L5850.0002.2967-1341126Chlorobenzeneug/L14050.0007313QM-0569-12213421,1-Dichloroetheneug/L5250.0000.0958-1421056Tolueneug/L5350.0000.0968-1271076Trichloroetheneug/L5850.0000.01172-1321167ug/L50.00080-120Surr: Dibromofluoromethane9246ug/L50.00078-120Surr: 1,2-Dichloroethane-d410352ug/L50.00080-120Surr: Toluene-d89950ug/L50.00080-120Surr: 4-Bromofluorobenzene10553Page 11 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017Laboratory CertificationsCodeDescriptionNumberExpires812Georgia DW Inorganics Eff: 07/01/201606/30/2017GADW812Georgia DW Microbiology Eff: 07/01/201512/09/2019GADWM381North Carolina12/31/2017NCE87315FL DOH (Non-Pot. Water, Solids) Eff:: 07/01/201606/30/2017NELACE87315FL DOH NELAC (Drinking Water) Eff: 07/01/201606/30/2017NELDW98011001South Carolina06/30/2017SCT104704397-08-TXTexas03/31/2018TX460204Virginia12/14/2017VAPage 12 of 15
Environmental Monitoring & Laboratory Analysis110 Technology Parkway, Peachtree Corners, GA 30092(770) 734-4200 FAX [phone]PACE ANALYTICAL SERVICES, LLC.Republic Services of North Carolina, LLC1220 Commerce Street, SWConover NC, 28613Attention: Mr. Derek BouchardJune 07, 2017LegendDefination of Laboratory Terms - Not Detected at levels greater than or equal to SWSL/RLNDSWSL/RLMDL - NC DENR Solid Waste Section LImit/Reporting Limit (Adjusted for DF/Prep Factor) - Method Detection LimitQualifiers - Dilution FactorDFQM-05The spike recovery was outside acceptance limits for the MS and/or MSD and/or PDS due to suspected matrix interference. Sample results for the QC batch were accepted based on acceptable LCS recoveries.QM-02The spike recovery is outside acceptance limits due to insignificant spike amount as compared to sample concentration.JEstimated value less than Reporting Limit (RL) but greater than Method Detection Limit(MDL) (CLP J-Flag).B-01Analyte was detected in the associated method blank at an estimated level equal to or greater than the MDL. Sample values reported as greater than the MDL and less than 10x the method blank value are reported as estimated values.Note: Unless otherwise noted, all results are reported on an as received basis.Page 13 of 15
Page 14 of 15
LOG-IN CHECKLIST
Republic Services of North Carolina, LLC
Foothills Environmental Landfill ResampleProject:
Client:
Printed: 5/25/2017 12:05:14PM
Environmental Monitoring & Laboratory Analysis
[phone] FAX [phone]
110 Technology Parkway, Peachtree Corners, GA 30092
PACE ANALYTICAL SERVICES, LLC.
Date Received:05/24/17 09:20 Logged In By:Charles Hawks
Work Order:AAE0795
OBSERVATIONS
Attn: Mr. Derek Bouchard
#Samples: 3 #Containers: 17
0.8 0.8
YES
Minimum Temp(C):Maximum Temp(C):
CHECKLIST ITEMS
COC included with Samples
Sample Container(s) Intact
Chain of Custody Complete
Sample Container(s) Match COC
Custody seal Intact
Temperature in Compliance
Sufficient Sample Volume for Analysis
Zero Headspace Maintained for VOA Analyses
Samples labeled preserved (If Applicable)
Samples received within Allowable Hold Times
Samples Received on Ice
Preservation Confirmed
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Custody Seal(s) Used:Yes
The Mets and NH3 sample for Leachate was pH adjusted from 5 to<2 with HNO3 and H2SO4 respectively. CFH
Comments:
Page 1 of 1Page 15 of 15
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22807 - 930538 Page 1 of 8
Betsy McDaniel
Pace Analytical Atlanta110 Technology Parkway
Norcross, GA 30092USA
May 31, 2017
RE:
Pace Workorder:
N.C. / AAE0795
Dear Betsy McDaniel:
22807
Enclosed are the analytical results for sample(s) received by the laboratory on Thursday, May 25, 2017.
Results reported herein conform to the most current NELAC standards, where applicable, unless otherwisenarrated in the body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Enclosures
Ruth Welsh 05/31/[e-mail]
Total Number of Pages ____
As a valued client we would appreciate your comments on our service.
Please email [e-mail].
Customer Service Representative
220 William Pitt Way
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Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
10
Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22807 - 930538 Page 2 of 8
LABORATORY ACCREDITATIONS & CERTIFICATIONS
Pennsylvania Department of Environmental Protection, Bureau of Laboratories
02-00538
NELAP Non-Potable Water and Solid & Hazardous Waste
Accreditor:
Accreditation ID:
Scope:
West Virginia Department of Environmental Protection, Division of Water and Waste
Management
395
Non-Potable Water
Accreditor:
Accreditation ID:
Scope:
South Carolina Department of Health and Environmental Control, Office of EnvironmentalLaboratory Certification
89009003
Clean Water Act (CWA); Resource Conservation and Recovery Act (RCRA)
Accreditor:
Accreditation ID:
Scope:
NELAP: New Jersey, Department of Environmental Protection
PA026
Non-Potable Water; Solid and Chemical Materials
Accreditor:
Accreditation ID:
Scope:
NELAP: New York, Department of Health Wadsworth Center
11815
Non-Potable Water; Solid and Hazardous Waste
Accreditor:
Accreditation ID:
Scope:
State of Connecticut, Department of Public Health, Division of Environmental Health
PH-0263
Clean Water Act (CWA) Resource Conservation and Recovery Act (RCRA)
Accreditor:
Accreditation ID:
Scope:
NELAP: Texas, Commission on Environmental Quality
T104704453-09-TX
Non-Potable Water
Accreditor:
Accreditation ID:
Scope:
State of New Hampshire
299409
Non-potable water
Accreditor:
Accreditation ID:
Scope:
State of Georgia
Chapter 391-3-26
As per the Georgia EPD Rules and Regulations for Commercial Laboratories, PAES isaccredited by the Pennsylvania Department of Environmental Protection Bureau of
Laboratories under the National Environmental Laboratory Approval Program (NELAC).
Accreditor:
Accreditation ID:
Scope:
220 William Pitt Way
Pittsburgh, PA 15238
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Fax: [phone]
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Pace Analytical Energy Services LLC
CERTIFICATE OF ANALYSIS
This report shall not be reproduced, except in full,
Report ID: 22807 - 930538 Page 3 of 8
SAMPLE SUMMARY
Workorder:22807 N.C. / AAE0795
Lab ID Sample ID Matrix Date Collected Date Received
228070001 1403-M2R Water 5/23/2017 13:15 5/25/2017 11:45
220 William Pitt Way
Pittsburgh, PA 15238
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Fax: [phone]
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This report shall not be reproduced, except in full,
Report ID: 22807 - 930538 Page 4 of 8
ANALYTICAL RESULTS
Workorder:22807 N.C. / AAE0795
5/25/2017 11:45
1403-M2R
Matrix:Water
RegLmtParameters
Lab ID:
Sample ID:
RegLmt
228070001
Results Units PQL DF ByAnalyzedMDL Qualifiers
Date Collected:
Date Received:
5/23/2017 13:15
RISK - PAES
Analysis Desc: AM20GAX Analytical Method: AM20GAX
Methane 4200 ug/l 0.50 1 5/27/2017 08:28 TD n0.027
Ethane 0.038J ug/l 0.10 1 5/27/2017 08:28 TD n0.0070
Ethene 0.10 U ug/l 0.10 1 5/27/2017 08:28 TD n0.0090
Carbon Dioxide 240 mg/l 5.0 1 5/27/2017 08:28 TD n0.24
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Report ID: 22807 - 930538 Page 5 of 8
ANALYTICAL RESULTS QUALIFIERS
Workorder:22807 N.C. / AAE0795
DEFINITIONS/QUALIFIERS
U
J
Indicates the compound was analyzed for, but not detected at or above the noted concentration.
Estimated concentration greater than the set method detection limit (MDL) and less than the set reporting limit (PQL).
MDL Method Detection Limit. Can be used synonymously with LOD; Limit Of Detection.
PQL Practical Quanitation Limit. Can be used synonymously with LOQ; Limit Of Quantitation.
ND Not detected at or above reporting limit.
DF Dilution Factor.
S Surrogate.
RPD Relative Percent Difference.
% Rec Percent Recovery.
The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n
220 William Pitt Way
Pittsburgh, PA 15238
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This report shall not be reproduced, except in full,
Report ID: 22807 - 930538 Page 6 of 8
QUALITY CONTROL DATA
Workorder:22807 N.C. / AAE0795
QC Batch:
QC Batch Method:
DISG/6138
AM20GAX
Analysis Method:AM20GAX
Associated Lab Samples:228070001
METHOD BLANK:49097
Parameter Units Result
Blank
Limit
Reporting
Qualifiers
RISK
Methane 0.50 Uug/l 0.50 n
Ethane 0.10 Uug/l 0.10 n
Ethene 0.10 Uug/l 0.10 n
METHOD BLANK:49098
Parameter Units Result
Blank
Limit
Reporting
Qualifiers
RISK
Carbon Dioxide 5.0 Umg/l 5.0 n
LABORATORY CONTROL SAMPLE & LCSD:
Parameter Units Conc.
Spike
Result
LCS
49099 49101
LCSD
Result % Rec
LCS LCSD
% Rec
% Rec
Limit RPD RPD
Max
Qualifiers
RISK
Methane ug/l 750 890 119 80-120 n8601162.6 20
Ethane ug/l 38 42 110 80-120 n411072.8 20
Ethene ug/l 35 39 110 80-120 n381081.8 20
LABORATORY CONTROL SAMPLE & LCSD:
Parameter Units Conc.
Spike
Result
LCS
49100 49102
LCSD
Result % Rec
LCS LCSD
% Rec
% Rec
Limit RPD RPD
Max
Qualifiers
RISK
Carbon Dioxide mg/l 120 120 107 80-120 n1301080.93 20
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Report ID: 22807 - 930538 Page 7 of 8
QUALITY CONTROL DATA QUALIFIERS
Workorder:22807 N.C. / AAE0795
QUALITY CONTROL PARAMETER QUALIFIERS
The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.
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Report ID: 22807 - 930538 Page 8 of 8
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Workorder:22807 N.C. / AAE0795
Lab ID Sample ID Prep Method Analysis MethodPrep Batch Batch
Analysis
228070001 1403-M2R DISG/6138AM20GAX
220 William Pitt Way
Pittsburgh, PA 15238
Phone: [phone]
Fax: [phone]
without the written consent of Pace Analytical Energy Services LLC.

APPENDIX B

Statistical Analysis Work Sheets

JOYCE Project:Republic - Foothills Landfill
Project No: 890.1702.12
Task No: 04
Sample Dates: January - May 2017
Confidence Interval Analysis
Analyte:Benzene
Monitoring Well:MW-2R
GPS:1.000 µg/L
X(i) Data Date
1 1.6 26-Jan-17
2 1.6 28-Feb-17
3* 1.3 19-Apr-17
4* 1.7 23-May-17
Mean = 1.550
Std. Deviation = 0.173
n = 4
tc (0.99, 3) = 4.541 gives 0.5% tails

C.I. Range = 0.393 ( CIR = tc*(St.Dev./n0.5) )
Lower Limit of C.I. = 1.157 ( LL = Mean - CIR )
GPS = 1.000
Statistically Significant?YES
Notes:
All concentrations in micrograms per liter (µg/L).
tc(0.99, 3) = Student's T-Distribution (99% confidence, n-1)
Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017
JOYCE Project:Republic - Foothills Landfill
Project No: 890.1702.12
Task No: 04
Sample Dates: January - May 2017
Confidence Interval Analysis
Analyte:Benzene
Monitoring Well:MW-2R
GPS:0.037 µg/L
X(i) Ln(Data) Date
1 0.470 26-Jan-17
2 0.470 28-Feb-17
3* 0.262 19-Apr-17
4* 0.531 23-May-17
Mean = 0.433
Std. Deviation = 0.117
n = 4
tc (0.99, 3) = 4.541 gives 0.5% tails

C.I. Range = 0.267 ( CIR = tc*(St.Dev./n0.5) )
Lower Limit of C.I. = 0.167 ( LL = Mean - CIR )
Exp (LL) = 1.181
GPS = 1.000
Statistically Significant?YES
Notes:
All concentrations in micrograms per liter (µg/L).
tc(0.99, 3) = Student's T-Distribution (99% confidence, n-1)
Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017
JEI Project:Republic - Foothills Landfill
Project No: 890.1702.12
Task No: 04
Sample Date: January - May 2017
Shapiro Wilk Test Statistic (W) for normality of Benzene
Sample No. Sample Date Location Concentration
1 26-Jan-17 MW-2R 1.6 1.7 1.3
2 28-Feb-17 MW-2R 1.6 1.6 1.6
3* 19-Apr-17 MW-2R 1.3 1.6 1.6
4* 23-May-17 MW-2R 1.7 1.3 1.7
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 1.700 1.300 -0.400 0.6872 -0.2749
2 1.600 1.600 0.000 0.1677 0.0000
3 1.600 1.600 0.000
4 1.300 1.700 0.400
The test statistic W can be found using:
W = SQR((B/SD x SQRT(n-1))
A = Coefficients from Table A-1 with (n) samples.
where: B = summation of (X(n-i+1)-X(i))A(n-i+1) = -0.27
SD = standard deviation of the data group = 0.17
n = number of samples = 4
W = 0.840
Compare this value to the critical value in Table A-2 of Statistical Analysis of Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data set is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.748
and the calculated W = 0.840
Therefore the data set is Normal
Sorted
Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017
JEI Project:Republic - Foothills Landfill
Project No: 890.1702.12
Task No: 04
Sample Date: January - May 2017
Shapiro Wilk Test Statistic (W) for natural log normality of Benzene
Sample No. Sample Date Location LN(Concentration)
1 26-Jan-17 MW-2R 0.47 0.53 0.26
2 28-Feb-17 MW-2R 0.47 0.47 0.47
3 19-Apr-17 MW-2R 0.26 0.47 0.47
4 23-May-17 MW-2R 0.53 0.26 0.53
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 0.53 0.26 0.27 0.6872 0.18
2 0.47 0.47 0.00 0.1677 0.00
3 0.47 0.47 0.00
4 0.26 0.53 -0.27
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) = 0.18
SD = standard deviation of the data group = 0.12
n = number of samples = 4
W = 0.821
Compare this value to the critical value in Table A-2 of Statistical Analysis of Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data set is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.748
e calculated W = 0.821
Therefore the data set is Natural Log-Normal
Sorted
Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017
JOYCE Project:Republic - Foothills Landfill
Project No: 890.1702.12
Task No: 04
Sample Dates: January - May 2017
Confidence Interval Analysis
Analyte:Vinyl Chloride
Monitoring Well:MW-2R
GPS:0.037 µg/L
X(i) Data Date
1 1.2 26-Jan-17
2 1.8 28-Feb-17
3 1.1 19-Apr-17
4 1.1 23-May-17
Mean = 1.300
Std. Deviation = 0.337
n = 4
tc (0.99, 3) = 4.541 gives 0.5% tails

C.I. Range = 0.764 ( CIR = tc*(St.Dev./n0.5) )
Lower Limit of C.I. = 0.536 ( LL = Mean - CIR )
GPS = 0.03
Statistically Significant?YES
Notes:
All concentrations in micrograms per liter (µg/L).
tc(0.99, 3) = Student's T-Distribution (99% confidence, n-1)
Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017
JOYCE Project:Republic - Foothills Landfill
Project No: 890.1702.12
Task No: 04
Sample Dates: January - May 2017
Confidence Interval Analysis
Analyte:Vinyl Chloride
Monitoring Well:MW-2R
GPS:0.037 µg/L
X(i) Ln(Data) Date
1 0.182 26-Jan-17
2 0.588 28-Feb-17
3 0.095 19-Apr-17
4 0.095 23-May-17
Mean = 0.240
Std. Deviation = 0.235
n = 4
tc (0.99, 3) = 4.541 gives 0.5% tails

C.I. Range = 0.534 ( CIR = tc*(St.Dev./n0.5) )
Lower Limit of C.I. = -0.294 ( LL = Mean - CIR )
Exp (LL) = 0.745
GPS = 0.03
Statistically Significant?YES
Notes:
All concentrations in micrograms per liter (µg/L).
tc(0.99, 3) = Student's T-Distribution (99% confidence, n-1)
Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017
JEI Project:Republic - Foothills Landfill
Project No: 890.1702.12
Task No: 04
Sample Date: January - May 2017
Shapiro Wilk Test Statistic (W) for normality of Vinyl Chloride
Sample No. Sample Date Location Concentration
1 26-Jan-17 MW-2R 1.2 1.8 1.1
2 28-Feb-17 MW-2R 1.8 1.2 1.1
3 19-Apr-17 MW-2R 1.1 1.1 1.2
4 23-May-17 MW-2R 1.1 1.1 1.8
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 1.800 1.100 -0.700 0.6872 -0.4810
2 1.200 1.100 -0.100 0.1677 -0.0168
3 1.100 1.200 0.100
4 1.100 1.800 0.700
The test statistic W can be found using:
W = SQR((B/SD x SQRT(n-1))
A = Coefficients from Table A-1 with (n) samples.
where: B = summation of (X(n-i+1)-X(i))A(n-i+1) = -0.50
SD = standard deviation of the data group = 0.34
n = number of samples = 4
W = 0.729
Compare this value to the critical value in Table A-2 of Statistical Analysis of Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data set is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.748
and the calculated W = 0.729
Therefore the data set is Non-Normal
Sorted
Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017
JEI Project:Republic - Foothills Landfill
Project No: 890.1702.12
Task No: 04
Sample Date: January - May 2017
Shapiro Wilk Test Statistic (W) for natural log normality of Vinyl Chloride
Sample No. Sample Date Location LN(Concentration)
1 26-Jan-17 MW-2R 0.18 0.53 0.26
2 28-Feb-17 MW-2R 0.59 0.47 0.47
3 19-Apr-17 MW-2R 0.10 0.47 0.47
4 23-May-17 MW-2R 0.10 0.26 0.53
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 0.53 0.26 0.27 0.6872 0.18
2 0.47 0.47 0.00 0.1677 0.00
3 0.47 0.47 0.00 0 0.00
4 0.26 0.53 -0.27 0 0.00
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) = 0.18
SD = standard deviation of the data group = 0.12
n = number of samples = 4
W = 0.821
Compare this value to the critical value in Table A-2 of Statistical Analysis of Ground-Water
Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance (Draft)
July, 1992, to determine if the data set is normally distributed.
From Table A-2 with (n) samples and a 95% confidence level, the critical value is
W(crit) = 0.748
e calculated W = 0.821
Therefore the data set is Natural Log-Normal
Sorted
Foothills Landfill
Permit # 14-03
Joyce Engineering
June 2017