6201_MontgomeryCoMSWLF_July2024GWMR_FID1913857_20241118

DENR USE ONLY: Paper Report Electronic Data - Email CD (data loaded: Yes / No ) Doc/Event #:
NC DENR
Division of Waste Management - Solid Waste Environmental Monitoring
Reporting Form
Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are
available for inspection and examination by any person upon request (NC General Statute 132-6).
Instructions:
Prepare one form for each individually monitored unit.
Please type or print legibly.
Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification
must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off-site source, pre-existing
condition, etc.).
Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits.
Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the
facility (NCAC 13B .1629 (4)(a)(i).
Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste
Section, 1646 Mail Service Center, Raleigh, NC 27699-1646.
Solid Waste Monitoring Data Submittal Information
Name of entity submitting data (laboratory, consultant, facility owner):
Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address:
Name: Phone:
E-mail:
Facility name: Facility Address: Facility Permit #
NC Landfill Rule:
(.0500 or .1600)
Actual sampling dates (e.g.,
October 20-24, 2006)
Environmental Status: (Check all that apply)
Initial/Background Monitoring Detection Monitoring Assessment Monitoring Corrective Action
Type of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Methane gas monitoring data
Groundwater monitoring data from private water supply wells Corrective action data (specify)
Leachate monitoring data Other(specify) Surface water monitoring data
Notification attached?
No. No groundwater or surface water standards were exceeded.
Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water
monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and
preliminary analysis of the cause and significance of any concentration.
Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample
values and explosive methane gas limits.
Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct.
Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas
levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there
are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
Affix NC Licensed/ Professional Geologist Seal
Revised 6/2009
Date
Facility Representative Address
NC PE Firm License Number (if applicable effective May 1, 2009
Steve Jett [phone]
[e-mail]
Montgomery County Landfill 500 Landfill Road
Mt. Gilead, NC 27306 62-01 .1600 July 18-19, 2024
Steve Jett Owner [phone]
Jett Environmental Consulting, PLLC, 18 Lexington Oaks Court, Foristell, MO 63348
11/14/2024

Groundwater
Statistical Analysis Report

Second Semi-Annual 2024
Sampling Event

Montgomery County Landfill
Mt. Gilead, North Carolina

November 2024

Prepared by:

18 Lexington Oaks Court 314-496-4654
Foristell, MO 63348 www.jettenviro.com

TABLE OF CONTENTS

1.0 INTRODUCTION .............................................................................1 
2.0 SITE BACKGROUND AND MONITORING NETWORK ................1 
3.0 SITE HYDROGEOLOGY ................................................................2 
4.0 DATA EVALUATION ......................................................................2 
5.0 STATISTICAL PROCEDURES .......................................................3 
5.1 Outlier Analysis ...........................................................................3 
5.2 Intra-Well Prediction Intervals ....................................................3 
5.3 Statistical Results Summary .......................................................4 
6.0 CONCLUSIONS ..............................................................................4 

TABLES

Table 1 Groundwater Monitoring Program
Table 2 Analytical Data Summary, Groundwater Samples
Table 3 Analytical Data Summary, Surface Water Samples

APPENDICES

Appendix A Potentiometric Surface Map
Appendix B Statistical Evaluations
Appendix C Laboratory Analytical Report & Field Sampling Forms
Groundwater Statistical Analysis Report
Montgomery County Landfill, North Carolina 1

1.0 INTRODUCTION

On behalf of Montgomery County Landfill, Jett Environmental Consulting statistically evaluated the Second
Semi-Annual 2024 water quality monitoring data. Sampling and analytical testing was performed by Pace
Analytical Services, LLC. The statistical analysis software package utilized, SanitasTM, follows a
documented decision logic that incorporates the following applicable document: USEPA “Statistical
Analysis of Groundwater Monitoring Data at RCRA Facilities, Unified Guidance” (March 2009).
2.0 SITE BACKGROUND AND MONITORING NETWORK

The Montgomery County Landfill is a closed municipal solid waste facility. Per the site’s Permit (No. 62-01)
and in compliance with North Carolina Department of Environmental Quality (DEQ) Solid Waste
Management Regulations, Section .1600 “Requirements for Municipal Solid Waste Landfill Facilities,” Jett
Environmental Consulting statistically evaluated parameters from the Second Semi-Annual 2024 event
using intra-well prediction interval analysis. Prediction intervals are considered a powerful tool for
groundwater statistical analysis, when feasible, due to their inherent low false negative and false positive
rates utilizing confirmatory resampling, if necessary.

Groundwater monitoring was initiated in January 1994. The historical statistical database is complete dating
back to at least January 2007. Background is defined as samples collected from each respective well from
January 2007 through the July 2014 event. Background data will be reviewed and updated as needed. The
parameters subject to statistical evaluation during detection monitoring are noted in DEQ Section .1633 as
constituents listed in Appendix I of 40 CFR Part 258 “Appendix I Constituents for Detection Monitoring”.
Table 1 lists the site’s groundwater monitoring wells. Each of the wells were sampled during the Second
Semi-Annual 2024 event.

In addition to the groundwater monitoring, the site has a surface water monitoring network consisting of one
upstream surface water sampling point (SW-1) and one downstream point (SW-2). These points are
sampled semi-annually for the 40 CFR Part 258 Appendix I list in conjunction with the groundwater
monitoring wells. During the Second Semi-Annual 2024 event, surface water monitoring points SW-1 and
SW-2 were dry and unable to be sampled.

In addition, in a May 29, 2018 memorandum, DEQ requested groundwater and surface water samples
collected at landfills after July 1, 2018 be analyzed for 1,4-dioxane.

Based on the results of statistical evaluations of the groundwater monitoring data, an Alternate Source
Demonstration (ASD) was submitted to the DEQ in February 1997 in response to confirmed statistically
significant detections of mercury and 1,1-dichloroethane at monitoring well MW-4. The ASD attributed the
low mercury concentrations detected at MW-4 to natural variability in the geologic medium at the facility,
and the 1,1-dichloroethane concentrations reported at MW-4 to sampling and/or analysis error. The ASD
was approved by DEQ in a letter dated May 22, 1997.

A second ASD was submitted to DEQ on January 30, 2003, in response to detections of benzene and
trichloroethene at MW-2 during the October 2002 event. In a letter dated February 13, 2003 DEQ requested
that an Assessment Monitoring Program be implemented at the Montgomery County Landfill. Assessment
Monitoring, as outlined in NCAC Title 15A 13B.1634, was implemented on March 19, 2003. Laboratory
analytical results from the initial Appendix II sampling event indicated that there were no new Appendix II
detections for the facility. In general, the detected organic constituents and concentrations were consistent
with a landfill gas source.

In response to comments from DEQ concerning the January 30, 2003 ASD, an addendum to the January
2003 ASD was submitted to DEQ in August 2003. Based on analysis of water quality, leachate indicator
parameters, and isotopic analyses, the addendum concluded that the volatile organic compounds (VOCs)
detected in the uppermost aquifer beneath the facility did not appear to have originated from a leachate
Groundwater Statistical Analysis Report
Montgomery County Landfill, North Carolina 2

release at the closed landfill. In a letter dated October 25, 2006 from DEQ, the ASD and addendum were
not approved since recent detected organic constituents were different from those prior to the ASD.

A third ASD was submitted on December 5, 2007 to address the detections of the following VOCs: benzene;
1,4-dichlorobenzene; chlorobenzene; 1,2-dichlorobenzene; 1,1-dichloroethane; cis-1,2-dichloroethene;
methylene chloride; tetrachloroethene; toluene; trichloroethene; and vinyl chloride, in background well
MW-1R and downgradient wells MW-2 and MW-4. The ASD, which attributed the VOC detections to landfill
gas-to-groundwater impacts, was approved by DEQ on January 28, 2008, and permitted the facility to revert
to the Detection Monitoring Program.
3.0 SITE HYDROGEOLOGY

The following site hydrogeology summary was taken from the Second Semi-Annual Water Quality
Monitoring Report of 2012, dated September 2012 by Joyce Engineering.

The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of
partially weathered, fractured, meta-volcanic rock. Groundwater occurs at depths of approximately 40 feet
below grade along the northern upgradient side of the waste disposal area, and at a depth of less than 10
feet below grade along the perimeter downgradient boundary.

The groundwater flow in the uppermost aquifer beneath the site is towards the southwest, with the flow
appearing to converge on the southerly flowing tributary of Rocky Creek located west of the waste areas.

Appendix A provides a potentiometric surface map for the site utilizing groundwater level data from the
Second Semi-Annual 2024 event. Groundwater flow direction for the Second Semi-Annual 2024 event was
to the southwest, consistent with past events. Groundwater flow rate for the Second Semi-Annual 2024
event was estimated at 38 feet/year, consistent with past events. Flow rate calculations are available in
Appendix A.
4.0 DATA EVALUATION

The analytical results for the Second Semi-Annual 2024 event for the groundwater and surface water
samples are summarized on Table 2 and Table 3, respectively.

As presented in Table 2, eight Appendix I inorganic constituents were detected in groundwater samples at
quantified concentrations above the laboratory quantitation limit (PQL):

 Arsenic: MW-1R;
 Barium: MW-1R, MW-2, and MW-4;
 Beryllium: MW-2;
 Chromium: MW-2
 Cobalt: MW-3 and MW-4;
 Copper: MW-3;
 Lead: MW-2; and,
 Zinc: MW-2 and MW-4.

During the Second Semi-Annual 2024 event, a dissolved arsenic sample was collected (i.e., field filtered
prior to containerization) at MW-1R and the result was below the arsenic PQL. Additionally, the field turbidity
value at MW-2 was 715.2 NTU at the time of sample collection. Elevated turbidity levels can result in
increased concentrations of inorganics that are sorbed or partitioned on colloids in groundwater.

Three Appendix I VOCs were detected at low-level quantified concentrations during the Second Semi-
Annual 2024 event: 1,4-dichlorobenzene (3.1 ug/L), benzene (1.2 ug/L), and chlorobenzene (3.5 ug/L) at
MW-4 (see Table 2). The VOCs detected were generally consistent with historical data and likely related
to landfill gas, as presented in the ASD approved by DEQ on January 28, 2008.
Groundwater Statistical Analysis Report
Montgomery County Landfill, North Carolina 3

As shown on Table 2, one Appendix I organic detection was detected at quantifiable concentration above
a 2L Standard: benzene at MW-4.

As shown on Table 2, 1,4-dioxane at MW-2 (11.2 ug/L) and MW-4 (23.8 ug/L) were detected above the 2L
Standard (3 ug/L). 1,4-Dioxane does not have an established National Primary Drinking Water Standard-
Maximum Contaminant Level (MCL).

Consistent with past events, five Appendix I inorganic results (arsenic at MW-1R; barium at MW-4;
chromium at MW-2, and cobalt at MW-3 and MW-4) were detected above the 2L Standard during the
Second Semi-Annual 2024 event.

As previously noted, surface water monitoring points SW-1 and SW-2 were dry and unable to be sampled
during the Second Semi-Annual 2024 event.
5.0 STATISTICAL PROCEDURES

As noted in Section 4.0, of the quantifiable detections during the Second Semi-Annual 2024 event, arsenic
at MW-1R, barium at MW-4, chromium at MW-2, and cobalt at MW-3 and MW-4 were detected above the
2L Standards. Statistical analyses (i.e., intra-well prediction limits) were performed to establish background
concentrations and determine if arsenic at MW-1R, barium at MW-4, chromium at MW-2, and cobalt at MW-
3 and MW-4 exhibited statistically significant results above background.

5.1 Outlier Analysis

The background data were evaluated for the presence of statistical outliers. Methodologies for determining
a statistical outlier are defined in the USEPA Unified Guidance. Any statistical outliers that were determined
were removed from the background data set prior to performing prediction interval statistical analysis.
According to the Unified Guidance, data that are not normally or log-normally distributed are not
recommended for evaluation of outliers. In cases where the data were not normally or log-normally
distributed, outliers were not removed from the data set. Background outliers flagged for removal are
identified on the statistical plots provided in Appendix B.

5.2 Intra-Well Prediction Intervals

The prediction interval is a statistical method used to compare a single observation to a group of
observations. The prediction interval is calculated to include observations from the same population with a
specified confidence. In groundwater monitoring, a prediction interval approach may be used to make
comparisons between background and compliance data. The interval is developed to contain all future
observations, within a certain probability. For the site, intra-well prediction intervals have been developed
based on a 99% confidence that future observations will fall within the range. If any future observation
exceeds the prediction interval, this is considered statistically significant evidence that the observation is
not representative of the background group.

During parametric prediction interval analysis, the mean and the standard deviation are calculated for the
raw or transformed background data. The number of comparison observations, K, is defined to be included
in the interval. If less than 15% of the background observations are nondetects, the nondetects are replaced
with one half of the reporting limit prior to performing the analysis. If more than 15% but less than 50% of
the background data are below the reporting limit, the data’s sample mean and standard deviation are
adjusted according to the Kaplan-Meier method. However, when the background data are not transformed-
normal or contain greater than 50% observations below the reporting limit, SanitasTM automatically
constructs a non-parametric prediction interval. During non-parametric analysis, the highest value from the
background data is used to set the upper limit of the prediction interval.

Summary tables and graphs for the intra-well prediction interval analysis are available in Appendix B. The
statistical results are discussed in Section 5.3.
Groundwater Statistical Analysis Report
Montgomery County Landfill, North Carolina 4

Included in Appendix B are time series plots for each of the inorganic constituents and organic detections.
Appendix C contains a copy of the laboratory analytical report and field sampling forms for the Second
Semi-Annual 2024 event.

5.3 Statistical Results Summary

For the Second Semi-Annual 2024 event, three inorganic statistically significant results above background
were exhibited for the groundwater monitoring wells: arsenic at MW-1R, barium at MW-4, and chromium at
MW-2. Cobalt at MW-3 and MW-4 did not exhibit statistically significant increases above background.

The Second Semi-Annual 2024 arsenic concentration at upgradient well MW-1R (10.7 ug/L) was slightly
above: the statistical limit (10 ug/L), the 2L Standard (10 ug/L), and the MCL (10 ug/L). As shown on the
time series graph and Mann-Kendall trend test graph (see Appendix B), arsenic concentrations at MW-1R
exhibit a statistically significant upward trend since the initial detection in January 2015.

The Second Semi-Annual 2024 barium concentration at downgradient well MW-4 (1,270 ug/L) was above
the statistical limit (950 ug/L) and above the 2L Standard (700 ug/L); however, was below the MCL (2,000
ug/L). As shown on the time series graph and Mann-Kendall trend test graph (see Appendix B), barium
concentrations at MW-4 exhibit a statistically significant upward trend.

The Second Semi-Annual 2024 chromium concentration at downgradient well MW-2 (53.8 ug/L) was above
the statistical limit (10 ug/L) and the 2L Standard (10 ug/L); however, was below the MCL (100 ug/L). As
shown on the time series graph and Mann-Kendall trend test graph (see Appendix B), chromium
concentrations at MW-2 did not exhibit a statistically significant upward trend.
6.0 CONCLUSIONS

During the Second Semi-Annual 2024 event, arsenic at MW-1R, barium at MW-4, chromium at MW-2, and
cobalt at MW-3 and MW-4 were detected above the 2L Standard. Statistical analyses (i.e., intra-well
prediction limits) were performed to determine if arsenic at MW-1R, barium at MW-4, chromium at MW-2,
and cobalt at MW-3 and MW-4 exhibited statistically significant results above background.

For the Second Semi-Annual 2024 event, three inorganic statistically significant results above background
were exhibited for the groundwater monitoring wells: arsenic at MW-1R, barium at MW-4, and chromium at
MW-2. Cobalt at MW-3 and MW-4 did not exhibit statistically significant increases above background.

The Second Semi-Annual 2024 arsenic concentration at upgradient well MW-1R (10.7 ug/L) was slightly
above: the statistical limit (10 ug/L), the 2L Standard (10 ug/L), and the MCL (10 ug/L). However, the total
arsenic concentration at MW-1R decreased considerably since the previous event and the dissolved
arsenic result at MW-1R was below the PQL.

The Second Semi-Annual 2024 barium concentration at downgradient well MW-4 (1,270 ug/L) was above
the statistical limit (950 ug/L) and above the 2L Standard (700 ug/L); however, was below the MCL (2,000
ug/L).

The Second Semi-Annual 2024 chromium concentration at downgradient well MW-2 (53.8 ug/L) was above
the statistical limit (10 ug/L) and the 2L Standard (10 ug/L); however, was below the MCL (100 ug/L).

Three Appendix I VOCs were detected at low-level quantified concentrations during the Second Semi-
Annual 2024 sampling event: 1,4-dichlorobenzene (3.1 ug/L), benzene (1.2 ug/L), and chlorobenzene (3.5
ug/L) at MW-4. One Appendix I organic detection was detected at quantifiable concentration above a 2L
Standard: benzene at MW-4. The VOCs detected were consistent with historical data and likely related to
landfill gas, as presented in the ASD approved by DEQ on January 28, 2008.

Groundwater Statistical Analysis Report
Montgomery County Landfill, North Carolina 5

1,4-Dioxane at MW-2 (11.2 ug/L) and MW-4 (23.8 ug/L) were detected above the 2L Standard (3 ug/L).
1,4-Dioxane does not have an established MCL. Per the May 29, 2018 DEQ memorandum noted above,
the Second Semi-Annual 2024 event was the thirteenth semi-annual event 1,4-dioxane has been sampled
at the site. Due to confirmed detections, the site will continue to sample for 1,4-dioxane at this time.

Surface water monitoring points SW-1 and SW-2 were dry and unable to be sampled during the Second
Semi-Annual 2024 event.

TABLES
UPGRADIENT WELL DOWNGRADIENT WELLS
MW-1R MW-2, MW-3, MW-4
TABLE 1
MONTGOMERY COUNTY LANDFILL
GROUNDWATER MONITORING PROGRAM
SECOND SEMI-ANNUAL 2024 EVENT
Constituent Units MDL PQL MW-1R MW-2 MW-3 MW-4
Antimony, Total ug/L 1 0.54 6 <6 <6 <6 <6 Arsenic, Total ug/L 10 0.84 10 10.7 3.4 J 2.2 J 3.7 J
Barium, Total ug/L 700 0.47 100 367 366 99.5 J 1270
Beryllium, Total ug/L 4 0.094 1 <1 1.2 0.22 J <1 Cadmium, Total ug/L 2 0.1 1 <1 0.75 J <1 <1 Chromium, Total ug/L 10 1.9 10 <10 53.8 3.2 J <10
Cobalt, Total ug/L 1 0.32 10 1.9 J 8.3 J 13.1 31.9
Copper, Total ug/L 1,000 0.43 10 0.83 J 7.2 J 10.8 <10 Dissolved Oxygen (Field)ug/L NE NA NA 1.5 0.5 0.7 0.8
Lead, Total ug/L 15 0.16 10 0.49 J 13.8 2.4 J <10
Nickel, Total ug/L 100 2.1 50 2.1 J 39.7 J 10.1 J 13.8 J
pH (Field)SU NE NA NA 5.7 4.9 5.6 6.0Redox (Field)mV NE NA NA -64.5 35.6 56.9 31.6
Selenium, Total ug/L 20 0.96 10 <10 1.7 J <10 <10
Silver, Total ug/L 20 0.31 10 <10 9.5 J <10 <10
Specific Conductance (Field)umhos/cm NE NA NA 127.0 156.1 124.3 741
Temperature (Field)Deg-C NE NA NA 24.6 23.9 24.7 21.2
Thallium, Total ug/L 2 0.38 5.5 <5.5 <5.5 <5.5 <5.5
Turbidity (Field)NTU NE NA NA 9.7 715.2 4.1 1.1Vanadium, Total ug/L 7 0.75 25 1.7 J B 6.4 J B 1.8 J B <25 1,000 2.4 10 8.6 J 75.3 9.4 J 28.7
Constituent (ug/L)Units MDL PQL MW-1R MW-2 MW-3 MW-4
1,1-Dichloroethane ug/L 6 0.37 5 0.78 J 1.7 J <5 1.2 J
1,4-Dichlorobenzene ug/L 6 0.33 1 <1 0.96 J <1 3.1
1,4-Dioxane ug/L 3 0.86 2 <2 11.2 <2 23.8
Benzene ug/L 1 0.34 1 <1 0.95 J <1 1.2
Chlorobenzene ug/L 50 0.28 3 <3 0.91 J <3 3.5
cis-1,2-Dichloroethene ug/L 70 0.38 5 1.8 J 3.0 J <5 0.49 J
0.03 0.39 1 <1 0.65 J <1 <1
NA: Denotes Not Applicable.
NE: Denotes a 2L Standard is Not Established.
B: Denotes parameter also detected in the associated field blank, trip blank, or laboratory method blank.
J: Denotes sample result above the MDL but below the PQL; estimated value; value may not be accurate.
For Organics, only the organics detected during this event are displayed on the table.
Denotes a concentration at or above a PQL is also above the NC 2L Standard:
Denotes a concentration is above a NC 2L Standard, but below the PQL:
TABLE 2
ANALYTICAL DATA SUMMARY, SECOND SEMI-ANNUAL 2024 EVENT
MONTGOMERY COUNTY LANDFILL
Constituent (ug/L)Units MDL PQL SW-1 SW-2
Antimony, Total ug/L 640 NA NA
Arsenic, Total ug/L 10 NA NA
Barium, Total ug/L 21,000 NA NABeryllium, Total ug/L 6.5 NA NA
Cadmium, Total ug/L NE NA NA
Chromium, Total ug/L NE NA NA
Cobalt, Total ug/L 4 NA NA
Copper, Total ug/L NE NA NADissolved Oxygen (Field)mg/L NE NA NA
Lead, Total ug/L NE NA NA
Nickel, Total ug/L NE NA NApH (Field)SU NE NA NA
Redox (Field)mV NE NA NA
Selenium, Total ug/L 5 NA NASilver, Total ug/L 0.06 NA NA
Specific Conductance (Field)umhos/cm NE NA NA
Temperature (Field)Deg-C NE NA NA
Thallium, Total ug/L 0.47 NA NA
Turbidity (Field)NTU NE NA NA
Vanadium, Total ug/L NE NA NANENANA
Sampling points SW-1 and SW-2 were not flowing and unable to be sampled.
NA: Denotes Not Applicable.
NE: Denotes a NC 2B Standard is Not Established.
TABLE 3
ANALYTICAL DATA SUMMARY, SECOND SEMI-ANNUAL 2024 EVENT
MONTGOMERY COUNTY LANDFILL
Dry Dry

APPENDICES

APPENDIX A
POTENTIOMETRIC SURFACE MAP

50' WIDE CP&
L

P
O
W
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R

L
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N
E

E
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S
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M
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PERIMET
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S

R
O
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PERIMETE
R

A
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S

R
O
A
D
EXISTING SITEENTRANCE DRIVE LAND
F
I
L
L

R
O
A
D

(
A
.
.
A
.

S
.
R
.

1
1
3
)
APPROXIMATEWASTE LIMITS(+ 29.9 ACRES)
EXISTINGSEDIMENTPOND
Graphic Scale: 1 inch = 250 feetScale in Feet
100500 250 500
Note1: Basemap provided by Hodges, Harbin,
Newberry & Tribble, Inc. Aerial topography
photo taken February 29, 2012.
Note2: Water levels measured by PaceAnalytical Services, LLC on July 18, 2024.
MW-1R
MW-2
MW-4
MW-3
SW-1
SW-2
Groundwater Monitoring Well
Surface Water Monitoring Point
Groundwater Elevation (fmsl)
Potentiometric Surface Contour
Groundwater Flow Direction &
Hydraulic Gradient
Approximate Waste Boundary
Property Boundary
MW-4
LEGEND
SW-1
603.59
655.20
632.05
603.59
612.11
i = 0.0299
630
610
620 630
640
i = 0.0
2
9
9
650
18 Lexington Oaks CourtForistell, MO 63348314-496-4654www.jettenviro.com
Second Semi-Annual 2024 Event, Potentiometric Surface MapMontgomery County Landfill, Mt. Gilead, North Carolina
Well 1 2
MW-1R 695.65 40.45 655.20
MW-2 643.46 11.41 632.05
MW-3 622.94 10.83 612.11
MW-4 609.59 6.00 603.59
Note 1: Top of PVC Casing Elevations from Table 3 of the Second Semi-Annual Water
Quality Monitoring Report of 2012, dated September 2012 by Joyce Engineering.
Note 2: Depth to water measured by Pace Analytical Services, LLC on July 18, 2024.
Groundwater Elevation Summary Table
Montgomery County Landfill
Groundwater Flow Velocity Calculations
Montgomery County Landfill
Second Semi-Annual 2024 Event
Velocity V = [(k)(i)]/(n)
V = [(0.441 ft/day)(0.0299 ft/ft]/0.125
V = 0.105 ft/day
V = 38 ft/year

Hydraulic conductivity and effective porosity values from the following document: Second Semi-Annual Water Quality Monitoring Report of 2012, Montgomery County Landfill.
Dated August 20, 2012 by Joyce Engineering. Gradient (i) is from the average gradient at site using the potentiometric surface map from
Point A to Point B.
Gradient (i) = Change in Groundwater Elevation along Flow Path i: From Point A (650 contour) to Point B (610 contour) = 40 ft / 1,338 ft = 0.0299 ft/ft

APPENDIX B
STATISTICAL EVALUATIONS
Constituent Well Upper Lim.Lower Lim.Date Observ.Sig.Bg N Bg Mean Std. Dev.%NDs ND Adj.Transform Alpha Method
Arsenic Total (ug/L)MW-1R 10 n/a 7/19/2024 10.7 Yes 13 n/a n/a 84.62 n/a n/a 0.009692 NP Intra (NDs) 1 of 2
Barium Total (ug/L)MW-4 950 n/a 7/19/2024 1270 Yes 16 367837 225409 0 None x^2 0.0008776 Param Intra 1 of 2
Chromium Total (ug/L)MW-2 10 n/a 7/19/2024 53.8 Yes 14 n/a n/a 78.57 n/a n/a 0.008612 NP Intra (NDs) 1 of 2
Cobalt Total (ug/L)MW-3 19 n/a 7/19/2024 13.1 No 16 1.674 0.4306 25 Kaplan-Meier x^(1/3) 0.0008776 Param Intra 1 of 2
Cobalt Total (ug/L)MW-4 59 n/a 7/19/2024 31.9 No 16 26.36 14.09 0 None No 0.0008776 Param Intra 1 of 2
Intra-Well Prediction Limits
Montgomery County LF Client: RSI Data: MontgomeryCounty Printed 10/28/2024, 4:00 PM
0
4
8
12
16
20
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R background
MW-1R compliance
Limit = 10
Prediction Limit
Intrawell Non-parametric
Constituent: Arsenic Total Analysis Run 10/28/2024 3:59 PM View: PL
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
L
Hollow symbols indicate censored values.
Non-parametric test used in lieu of parametric prediction limit because censored data exceeded 50%. Limit is highest
of 13 background values. 84.62% NDs. Well-constituent pair annual alpha = 0.01929. Individual comparison alpha =
0.009692 (1 of 2). After outlier removal distribution was non-normal, so outlier results were invalidated.
Exceeds Limit
0
400
800
1200
1600
2000
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-4 background
MW-4 compliance
Limit = 950
Prediction Limit
Intrawell Parametric
Constituent: Barium Total Analysis Run 10/28/2024 3:59 PM View: PL
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
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Background Data Summary (based on square transformation): Mean=367837, Std. Dev.=225409, n=16. Normality
test: Shapiro Wilk @alpha = 0.01, calculated = 0.9336, critical = 0.844. Kappa = 2.34 (c=15, w=4, 1 of 2, event alpha
= 0.05132). Report alpha = 0.0008776. EPA 1989 outlier screening was performed on the background data (to
establish suspected outliers for Dixon's/Rosner's). No background outliers were found.
Exceeds Limit
0
12
24
36
48
60
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-2 background
MW-2 compliance
Limit = 10
Prediction Limit
Intrawell Non-parametric
Constituent: Chromium Total Analysis Run 10/28/2024 3:59 PM View: PL
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
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Hollow symbols indicate censored values.
Non-parametric test used in lieu of parametric prediction limit because censored data exceeded 50%. Limit is highest
of 14 background values. 78.57% NDs. Well-constituent pair annual alpha = 0.01715. Individual comparison alpha =
0.008612 (1 of 2). Distribution was found to be non-normal after removal of suspect values, so outliers could not be
identified.
Exceeds Limit
0
4
8
12
16
20
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-3 background
MW-3 compliance
Limit = 19
Prediction Limit
Intrawell Parametric
Constituent: Cobalt Total Analysis Run 10/28/2024 3:59 PM View: PL
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
Background Data Summary (based on cube root transformation) (after Kaplan-Meier Adjustment): Mean=1.674, Std.
Dev.=0.4306, n=16, 25% NDs. Normality test: Shapiro Wilk @alpha = 0.01, calculated = 0.9519, critical = 0.844.
Kappa = 2.34 (c=15, w=4, 1 of 2, event alpha = 0.05132). Report alpha = 0.0008776. EPA 1989 outlier screening
was performed on the background data (to establish suspected outliers for Dixon's/Rosner's). No background outliers
were found.
Within Limit
0
12
24
36
48
60
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-4 background
MW-4 compliance
Limit = 59
Prediction Limit
Intrawell Parametric
Constituent: Cobalt Total Analysis Run 10/28/2024 3:59 PM View: PL
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
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Background Data Summary: Mean=26.36, Std. Dev.=14.09, n=16. Normality test: Shapiro Wilk @alpha = 0.01,
calculated = 0.8927, critical = 0.844. Kappa = 2.34 (c=15, w=4, 1 of 2, event alpha = 0.05132). Report alpha =
0.0008776. Distribution was found to be non-normal after removal of suspect values, so outliers could not be
identified.
Within Limit

TIME SERIES TREND ANALYSIS

Constituent Well Slope Calc.Critical Sig.N %NDs Normality Xform Alpha Method
Arsenic Total (ug/L)MW-1R (bg) 0 5 158 No 34 35.29 n/a n/a 0.02 NP
Barium Total (ug/L)MW-4 56.86 510 171 Yes 36 0 n/a n/a 0.02 NP
Chromium Total (ug/L)MW-2 -0.3214 -148 -166 No 35 37.14 n/a n/a 0.02 NP
Trend Test - All Background
Montgomery County LF Client: RSI Data: MontgomeryCounty Printed 10/28/2024, 2:41 PM
0
10
20
30
40
50
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
Sen's Slope Estimator
MW-1R (bg)
Constituent: Arsenic Total Analysis Run 10/28/2024 2:40 PM View: Trend All BG
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
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n = 34
Slope = 0
units per year.
Mann-Kendallstatistic = 5
critical = 158
Trend not sig-
nificant at 98%confidence level
(α = 0.01 per
tail).
Hollow symbols indicate censored values.
0
400
800
1200
1600
2000
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
Sen's Slope Estimator
MW-4
Constituent: Barium Total Analysis Run 10/28/2024 2:40 PM View: Trend All BG
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
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n = 36
Slope = 56.86
units per year.
Mann-Kendallstatistic = 510
critical = 171
Increasing trend
significant at 98%confidence level
(α = 0.01 per
tail).
0
16
32
48
64
80
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
Sen's Slope Estimator
MW-2
Constituent: Chromium Total Analysis Run 10/28/2024 2:40 PM View: Trend All BG
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
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n = 35
Slope = -0.3214
units per year.
Mann-Kendallstatistic = -148
critical = -166
Trend not sig-
nificant at 98%confidence level
(α = 0.01 per
tail).
Hollow symbols indicate censored values.
Constituent Well Slope Calc.Critical Sig.N %NDs Normality Xform Alpha Method
Arsenic Total (ug/L)MW-1R (bg)1.05 98 78 Yes 21 4.762 n/a n/a 0.02 NP
Trend Test - Arsenic MW-1R - Since Initial Detection
Montgomery County LF Client: RSI Data: MontgomeryCounty Printed 10/28/2024, 3:19 PM
0
8.06
16.12
24.18
32.24
40.3
1/20/15 12/13/16 11/7/18 9/30/20 8/25/22 7/19/24
Sen's Slope Estimator
MW-1R (bg)
Constituent: Arsenic Total Analysis Run 10/28/2024 3:18 PM View: TT- As - MW-1R - Since InitialDetect
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
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n = 21
Slope = 1.05
units per year.
Mann-Kendallstatistic = 98
critical = 78
Increasing trend
significant at 98%confidence level
(α = 0.01 per
tail).
Hollow symbols indicate censored values.
0
1.2
2.4
3.6
4.8
6
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Antimony Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
10
20
30
40
50
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Arsenic Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
400
800
1200
1600
2000
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Barium Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
0.4
0.8
1.2
1.6
2
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Beryllium Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
L
Hollow symbols indicate censored values.
0
0.6
1.2
1.8
2.4
3
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Cadmium Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
16
32
48
64
80
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Chromium Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
L
Hollow symbols indicate censored values.
0
12
24
36
48
60
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Cobalt Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
L
Hollow symbols indicate censored values.
0
10
20
30
40
50
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Copper Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
L
Hollow symbols indicate censored values.
0
4
8
12
16
20
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Lead Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
L
Hollow symbols indicate censored values.
0
10
20
30
40
50
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Nickel Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
L
Hollow symbols indicate censored values.
0
2
4
6
8
10
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Selenium Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
2
4
6
8
10
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Silver Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
1.2
2.4
3.6
4.8
6
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Thallium Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
6
12
18
24
30
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Vanadium Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
40
80
120
160
200
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Zinc Total Analysis Run 10/28/2024 1:50 PM View: TS
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
1.8
3.6
5.4
7.2
9
7/28/94 7/25/00 7/24/06 7/22/12 7/21/18 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: 11-Dichloroethane Analysis Run 10/28/2024 1:55 PM View: TS VOCs
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
1.4
2.8
4.2
5.6
7
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: 14-Dichlorobenzene Analysis Run 10/28/2024 1:55 PM View: TS VOCs
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
6
12
18
24
30
7/16/18 9/28/19 12/10/20 2/22/22 5/7/23 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: 14-Dioxane Analysis Run 10/28/2024 1:55 PM View: TS VOCs
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
1.2
2.4
3.6
4.8
6
10/17/02 2/22/07 6/30/11 11/5/15 3/12/20 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Benzene Analysis Run 10/28/2024 1:55 PM View: TS VOCs
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
0.8
1.6
2.4
3.2
4
1/10/07 7/13/10 1/13/14 7/16/17 1/16/21 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Chlorobenzene Analysis Run 10/28/2024 1:55 PM View: TS VOCs
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
6
12
18
24
30
7/28/94 7/25/00 7/24/06 7/22/12 7/21/18 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: cis-12-Dichloroethylene Analysis Run 10/28/2024 1:55 PM View: TS VOCs
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
/
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Hollow symbols indicate censored values.
0
2
4
6
8
10
4/22/03 7/21/07 10/20/11 1/19/16 4/19/20 7/19/24
MW-1R (bg)
MW-2
MW-3
MW-4
Time Series
Constituent: Vinyl chloride Analysis Run 10/28/2024 1:55 PM View: TS VOCs
Montgomery County LF Client: RSI Data: MontgomeryCounty
Sanitas™ v.10.0.23 Software licensed to Jett Environmental Consulting. UG
ug
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Hollow symbols indicate censored values.

APPENDIX C
LABORATORY ANALYTICAL REPORT
&
FIELD SAMPLING FORMS

#=CL#
August 09, 2024
LIMS USE: FR - ENVIRONMENTAL
LIMS OBJECT ID: 92743080
92743080
Project:
Pace Project No.:
RE:
Environmental Manager
BFI Waste Systems of North America, LLC
5105 Moreland Road
Concord, NC 28027
Montgomery LF/Semi-Annual
Dear Environmental Manager:
Enclosed are the analytical results for sample(s) received by the laboratory on July 19, 2024. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Charlotte
• Pace Analytical Services - Peachtree Corners, GA
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Maiya Parks
[e-mail]
Project Manager
770-734-4205
Enclosures
cc: Mike Gurley, BFI Waste Systems of North America, LLC
Data Manager, TriHydro Corporation
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 1 of 49
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Pace Analytical Services Charlotte
South Carolina Laboratory ID: 99006
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Laboratory ID: 99006
South Carolina Certification #: 99006001
South Carolina Drinking Water Cert. #: 99006003
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Louisiana DoH Drinking Water #: LA029
Virginia/VELAP Certification #: 460221
Pace Analytical Services Peachtree Corners
110 Technology Pkwy, Peachtree Corners, GA 30092
Florida DOH Certification #: E87315
Georgia DW Inorganics Certification #: 812
North Carolina Certification #: 381
South Carolina Certification #: 98011001
Virginia Certification #: 460204
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 2 of 49
#=SS#
SAMPLE SUMMARY
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Lab ID Sample ID Matrix Date Collected Date Received
92743080001 6201-MW1R Water 07/19/24 11:50 07/19/24 17:45
92743080002 6201-MW4 Water 07/19/24 09:50 07/19/24 17:45
92743080003 6201-DUP Water 07/19/24 09:50 07/19/24 17:45
92743080004 6201-MW3 Water 07/19/24 10:35 07/19/24 17:45
92743080005 6201-MW2 Water 07/19/24 12:05 07/19/24 17:45
92743080006 6201-Field Blank Water 07/19/24 12:05 07/19/24 17:45
92743080007 Trip Blank Water 07/19/24 00:45 07/19/24 17:45
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 3 of 49
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92743080001 6201-MW1R EPA 6020B 15 PASI-GACW1
EPA 6020B 1 PASI-GAMT1
EPA 8260D 50 PASI-CTMK
EPA 8260D Mod.3 PASI-CJJK
92743080002 6201-MW4 EPA 6020B 15 PASI-GACW1
EPA 8260D 50 PASI-CTMK
EPA 8260D Mod.3 PASI-CJJK
92743080003 6201-DUP EPA 6020B 15 PASI-GACW1
EPA 8260D 50 PASI-CTMK
EPA 8260D Mod.3 PASI-CJJK
92743080004 6201-MW3 EPA 6020B 15 PASI-GACW1
EPA 8260D 50 PASI-CTMK
EPA 8260D Mod.3 PASI-CJJK
92743080005 6201-MW2 EPA 6020B 15 PASI-GACW1
EPA 8260D 50 PASI-CTMK
EPA 8260D Mod.3 PASI-CJJK
92743080006 6201-Field Blank EPA 6020B 15 PASI-GACW1
EPA 8260D 50 PASI-CTMK
EPA 8260D Mod.3 PASI-CJJK
92743080007 Trip Blank EPA 8260D 50 PASI-CTMK
PASI-C = Pace Analytical Services - Charlotte
PASI-GA = Pace Analytical Services - Peachtree Corners, GA
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 49
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92743080001 6201-MW1R
Performed by PACE 07/19/24 12:05
pH 5.7 Std. Units 07/19/24 12:05
Temperature 24.6 deg C 07/19/24 12:05
Static Water Level 41.48 feet 07/19/24 12:05
Specific Conductance 127.0 umhos/cm 07/19/24 12:05
Oxidation Potential -64.5 mV 07/19/24 12:05
Oxygen, Dissolved 1.5 mg/L 07/19/24 12:05
Total Well Depth 53.46 feet 07/19/24 12:05
Turbidity 9.7 NTU 07/19/24 12:05
Arsenic 10.7 ug/L 07/24/24 18:1410.0EPA 6020B
Barium 367 ug/L 07/24/24 18:14100EPA 6020B
Cobalt 1.9J ug/L 07/24/24 18:1410.0EPA 6020B
Copper 0.83J ug/L 07/24/24 18:1410.0EPA 6020B
Lead 0.49J ug/L 07/24/24 18:1410.0EPA 6020B
Nickel 2.1J ug/L 07/24/24 18:1450.0EPA 6020B
Vanadium 1.7J ug/L 07/24/24 18:14 B25.0EPA 6020B
Zinc 8.6J ug/L 07/24/24 18:1410.0EPA 6020B
Arsenic, Dissolved 8.8J ug/L 08/05/24 15:1510.0EPA 6020B
1,1-Dichloroethane 0.78J ug/L 08/02/24 07:115.0EPA 8260D
cis-1,2-Dichloroethene 1.8J ug/L 08/02/24 07:115.0EPA 8260D
92743080002 6201-MW4
Performed by PACE 07/19/24 09:50
pH 6.0 Std. Units 07/19/24 09:50
Temperature 21.2 deg C 07/19/24 09:50
Static Water Level 5.99 feet 07/19/24 09:50
Specific Conductance 741 umhos/cm 07/19/24 09:50
Oxidation Potential 31.6 mV 07/19/24 09:50
Oxygen, Dissolved 0.8 mg/L 07/19/24 09:50
Total Well Depth 22.04 feet 07/19/24 09:50
Turbidity 1.1 NTU 07/19/24 09:50
Arsenic 3.7J ug/L 07/24/24 18:1810.0EPA 6020B
Barium 1270 ug/L 07/25/24 15:36500EPA 6020B
Cobalt 31.9 ug/L 07/24/24 18:1810.0EPA 6020B
Nickel 13.8J ug/L 07/24/24 18:1850.0EPA 6020B
Zinc 28.7 ug/L 07/24/24 18:1810.0EPA 6020B
Benzene 1.2 ug/L 08/02/24 07:291.0EPA 8260D
Chlorobenzene 3.5 ug/L 08/02/24 07:293.0EPA 8260D
1,4-Dichlorobenzene 3.1 ug/L 08/02/24 07:291.0EPA 8260D
1,1-Dichloroethane 1.2J ug/L 08/02/24 07:295.0EPA 8260D
cis-1,2-Dichloroethene 0.49J ug/L 08/02/24 07:295.0EPA 8260D
1,4-Dioxane (p-Dioxane)23.8 ug/L 07/21/24 15:05 C02.0EPA 8260D Mod.
92743080003 6201-DUP
Arsenic 3.6J ug/L 07/24/24 18:2110.0EPA 6020B
Barium 1270 ug/L 07/25/24 15:40500EPA 6020B
Cobalt 32.4 ug/L 07/24/24 18:2110.0EPA 6020B
Nickel 14.1J ug/L 07/24/24 18:2150.0EPA 6020B
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
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[phone]
Page 5 of 49
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92743080003 6201-DUP
Zinc 29.3 ug/L 07/24/24 18:2110.0EPA 6020B
Benzene 1.1 ug/L 08/02/24 07:481.0EPA 8260D
Chlorobenzene 3.5 ug/L 08/02/24 07:483.0EPA 8260D
1,4-Dichlorobenzene 3.3 ug/L 08/02/24 07:481.0EPA 8260D
1,1-Dichloroethane 1.3J ug/L 08/02/24 07:485.0EPA 8260D
cis-1,2-Dichloroethene 0.45J ug/L 08/02/24 07:485.0EPA 8260D
1,4-Dioxane (p-Dioxane)23.8 ug/L 07/21/24 15:24 C02.0EPA 8260D Mod.
92743080004 6201-MW3
Performed by PACE 07/19/24 10:35
pH 5.6 Std. Units 07/19/24 10:35
Temperature 24.7 deg C 07/19/24 10:35
Static Water Level 10.88 feet 07/19/24 10:35
Specific Conductance 124.3 umhos/cm 07/19/24 10:35
Oxidation Potential 56.9 mV 07/19/24 10:35
Oxygen, Dissolved 0.7 mg/L 07/19/24 10:35
Total Well Depth 22.58 feet 07/19/24 10:35
Turbidity 4.1 NTU 07/19/24 10:35
Arsenic 2.2J ug/L 07/24/24 18:2510.0EPA 6020B
Barium 99.5J ug/L 07/24/24 18:25100EPA 6020B
Beryllium 0.22J ug/L 07/24/24 18:251.0EPA 6020B
Chromium 3.2J ug/L 07/24/24 18:2510.0EPA 6020B
Cobalt 13.1 ug/L 07/24/24 18:2510.0EPA 6020B
Copper 10.8 ug/L 07/24/24 18:2510.0EPA 6020B
Lead 2.4J ug/L 07/24/24 18:2510.0EPA 6020B
Nickel 10.1J ug/L 07/24/24 18:2550.0EPA 6020B
Vanadium 1.8J ug/L 07/24/24 18:25 B25.0EPA 6020B
Zinc 9.4J ug/L 07/24/24 18:2510.0EPA 6020B
92743080005 6201-MW2
Performed by PACE 07/19/24 12:05
pH 4.9 Std. Units 07/19/24 12:05
Temperature 23.9 deg C 07/19/24 12:05
Static Water Level 11.61 feet 07/19/24 12:05
Specific Conductance 156.1 umhos/cm 07/19/24 12:05
Oxidation Potential 35.6 mV 07/19/24 12:05
Oxygen, Dissolved 0.5 mg/L 07/19/24 12:05
Total Well Depth 23.63 feet 07/19/24 12:05
Turbidity 715.2 NTU 07/19/24 12:05
Arsenic 3.4J ug/L 07/24/24 18:2910.0EPA 6020B
Barium 366 ug/L 07/24/24 18:29100EPA 6020B
Beryllium 1.2 ug/L 07/24/24 18:291.0EPA 6020B
Cadmium 0.75J ug/L 07/24/24 18:291.0EPA 6020B
Chromium 53.8 ug/L 07/24/24 18:2910.0EPA 6020B
Cobalt 8.3J ug/L 07/24/24 18:2910.0EPA 6020B
Copper 7.2J ug/L 07/24/24 18:2910.0EPA 6020B
Lead 13.8 ug/L 07/24/24 18:2910.0EPA 6020B
Nickel 39.7J ug/L 07/24/24 18:2950.0EPA 6020B
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 49
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92743080005 6201-MW2
Selenium 1.7J ug/L 07/24/24 18:2910.0EPA 6020B
Silver 9.5J ug/L 07/24/24 18:2910.0EPA 6020B
Vanadium 6.4J ug/L 07/24/24 18:29 B25.0EPA 6020B
Zinc 75.3 ug/L 07/24/24 18:2910.0EPA 6020B
Benzene 0.95J ug/L 08/02/24 08:251.0EPA 8260D
Chlorobenzene 0.91J ug/L 08/02/24 08:253.0EPA 8260D
1,4-Dichlorobenzene 0.96J ug/L 08/02/24 08:251.0EPA 8260D
1,1-Dichloroethane 1.7J ug/L 08/02/24 08:255.0EPA 8260D
cis-1,2-Dichloroethene 3.0J ug/L 08/02/24 08:255.0EPA 8260D
Vinyl chloride 0.65J ug/L 08/02/24 08:251.0EPA 8260D
1,4-Dioxane (p-Dioxane)11.2 ug/L 07/21/24 14:45 C02.0EPA 8260D Mod.
92743080006 6201-Field Blank
Vanadium 1.2J ug/L 07/24/24 18:32 B25.0EPA 6020B
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 49
#=NA#
PROJECT NARRATIVE
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Date:August 09, 2024
Neat Confirmation:
92743080-004 (MW3) - Co (13.1 ppb), neat 12.4 ppb. Cu (10.8 ppb), neat 9.8 ppb.
92743080-005 (MW2) - Be (1.2 ppb), neat 0.97 ppb. Cr (53.8 ppb), neat 21.1 ppb.
92743080-005 (MW2) - Pb (13.8 ppb), neat 9.5 ppb. Zn (75.3 ppb), neat 62.5 ppb (Sample contained excess sediment).
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW1R Lab ID: 92743080001 Collected: 07/19/24 11:50 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method:
Pace Analytical Services - Charlotte
Monitoring Well Data
Performed by PACE 07/19/24 12:051
pH 5.7 Std. Units 07/19/24 12:051
Temperature 24.6 deg C 07/19/24 12:051
Static Water Level 41.48 feet 07/19/24 12:051
Specific Conductance 127.0 umhos/c
m 07/19/24 12:051
Oxidation Potential -64.5 mV 07/19/24 12:051
Oxygen, Dissolved 1.5 mg/L 07/19/24 12:05 7782-44-71
Total Well Depth 53.46 feet 07/19/24 12:051
Turbidity 9.7 NTU 07/19/24 12:051
Analytical Method: EPA 6020B Preparation Method: EPA 3005A
Pace Analytical Services - Peachtree Corners, GA
6020 MET ICPMS
Antimony ND ug/L 07/24/24 18:14 7440-36-007/24/24 12:286.0 10.54
Arsenic 10.7 ug/L 07/24/24 18:14 7440-38-207/24/24 12:2810.0 10.84
Barium 367 ug/L 07/24/24 18:14 7440-39-307/24/24 12:2810010.47
Beryllium ND ug/L 07/24/24 18:14 7440-41-707/24/24 12:281.0 10.094
Cadmium ND ug/L 07/24/24 18:14 7440-43-907/24/24 12:281.0 10.10
Chromium ND ug/L 07/24/24 18:14 7440-47-307/24/24 12:2810.0 11.9
Cobalt 1.9J ug/L 07/24/24 18:14 7440-48-407/24/24 12:2810.0 10.32
Copper 0.83J ug/L 07/24/24 18:14 7440-50-807/24/24 12:2810.0 10.43
Lead 0.49J ug/L 07/24/24 18:14 7439-92-107/24/24 12:2810.0 10.16
Nickel 2.1J ug/L 07/24/24 18:14 7440-02-007/24/24 12:2850.0 12.1
Selenium ND ug/L 07/24/24 18:14 7782-49-207/24/24 12:2810.0 10.96
Silver ND ug/L 07/24/24 18:14 7440-22-407/24/24 12:2810.0 10.31
Thallium ND ug/L 07/24/24 18:14 7440-28-007/24/24 12:285.5 10.38
Vanadium 1.7J ug/L 07/24/24 18:14 7440-62-2 B07/24/24 12:2825.0 10.75
Zinc 8.6J ug/L 07/24/24 18:14 7440-66-607/24/24 12:2810.0 12.4
Analytical Method: EPA 6020B Preparation Method: EPA 3005A
Pace Analytical Services - Peachtree Corners, GA
6020 MET ICPMS, Dissolved
Arsenic, Dissolved 8.8J ug/L 08/05/24 15:15 7440-38-208/03/24 11:0810.0 10.84
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
Acetone ND ug/L 08/02/24 07:11 67-64-110015.1
Acrylonitrile ND ug/L 08/02/24 07:11 107-13-120011.8
Benzene ND ug/L 08/02/24 07:11 71-43-21.0 10.34
Bromochloromethane ND ug/L 08/02/24 07:11 74-97-53.0 10.47
Bromodichloromethane ND ug/L 08/02/24 07:11 75-27-41.0 10.31
Bromoform ND ug/L 08/02/24 07:11 75-25-23.0 10.34
Bromomethane ND ug/L 08/02/24 07:11 74-83-9 v210.0 11.7
2-Butanone (MEK)ND ug/L 08/02/24 07:11 78-93-310014.0
Carbon disulfide ND ug/L 08/02/24 07:11 75-15-010010.36
Carbon tetrachloride ND ug/L 08/02/24 07:11 56-23-51.0 10.33
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW1R Lab ID: 92743080001 Collected: 07/19/24 11:50 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
Chlorobenzene ND ug/L 08/02/24 07:11 108-90-73.0 10.28
Chloroethane ND ug/L 08/02/24 07:11 75-00-310.0 10.65
Chloroform ND ug/L 08/02/24 07:11 67-66-35.0 10.43
Chloromethane ND ug/L 08/02/24 07:11 74-87-31.0 10.54
1,2-Dibromo-3-
chloropropane ND ug/L 08/02/24 07:11 96-12-813.0 10.34
Dibromochloromethane ND ug/L 08/02/24 07:11 124-48-13.0 10.36
1,2-Dibromoethane (EDB)ND ug/L 08/02/24 07:11 106-93-42.0 10.27
Dibromomethane ND ug/L 08/02/24 07:11 74-95-310.0 10.39
1,2-Dichlorobenzene ND ug/L 08/02/24 07:11 95-50-15.0 10.34
1,4-Dichlorobenzene ND ug/L 08/02/24 07:11 106-46-71.0 10.33
trans-1,4-Dichloro-2-
butene ND ug/L 08/02/24 07:11 110-57-6 v210010.56
1,1-Dichloroethane 0.78J ug/L 08/02/24 07:11 75-34-35.0 10.37
1,2-Dichloroethane ND ug/L 08/02/24 07:11 107-06-21.0 10.32
1,1-Dichloroethene ND ug/L 08/02/24 07:11 75-35-45.0 10.35
cis-1,2-Dichloroethene 1.8J ug/L 08/02/24 07:11 156-59-25.0 10.38
trans-1,2-Dichloroethene ND ug/L 08/02/24 07:11 156-60-55.0 10.40
1,2-Dichloropropane ND ug/L 08/02/24 07:11 78-87-51.0 10.36
cis-1,3-Dichloropropene ND ug/L 08/02/24 07:11 10061-01-51.0 10.36
trans-1,3-Dichloropropene ND ug/L 08/02/24 07:11 10061-02-61.0 10.36
Ethylbenzene ND ug/L 08/02/24 07:11 100-41-41.0 10.30
2-Hexanone ND ug/L 08/02/24 07:11 591-78-650.0 10.48
Iodomethane ND ug/L 08/02/24 07:11 74-88-4 v220.0 19.7
Methylene Chloride ND ug/L 08/02/24 07:11 75-09-25.0 12.0
4-Methyl-2-pentanone
(MIBK)ND ug/L 08/02/24 07:11 108-10-110012.7
Styrene ND ug/L 08/02/24 07:11 100-42-51.0 10.29
1,1,1,2-Tetrachloroethane ND ug/L 08/02/24 07:11 630-20-65.0 10.31
1,1,2,2-Tetrachloroethane ND ug/L 08/02/24 07:11 79-34-53.0 10.22
Tetrachloroethene ND ug/L 08/02/24 07:11 127-18-41.0 10.29
Toluene ND ug/L 08/02/24 07:11 108-88-31.0 10.24
1,1,1-Trichloroethane ND ug/L 08/02/24 07:11 71-55-61.0 10.33
1,1,2-Trichloroethane ND ug/L 08/02/24 07:11 79-00-51.0 10.32
Trichloroethene ND ug/L 08/02/24 07:11 79-01-61.0 10.38
Trichlorofluoromethane ND ug/L 08/02/24 07:11 75-69-41.0 10.30
1,2,3-Trichloropropane ND ug/L 08/02/24 07:11 96-18-41.0 10.26
Vinyl acetate ND ug/L 08/02/24 07:11 108-05-450.0 11.3
Vinyl chloride ND ug/L 08/02/24 07:11 75-01-41.0 10.39
Xylene (Total)ND ug/L 08/02/24 07:11 1330-20-75.0 10.34
Surrogates
4-Bromofluorobenzene (S)99 %08/02/24 07:11 460-00-4 C070-130 1
1,2-Dichloroethane-d4 (S)103 %08/02/24 07:11 17060-07-070-130 1
Toluene-d8 (S)97 %08/02/24 07:11 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW1R Lab ID: 92743080001 Collected: 07/19/24 11:50 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
1,4-Dioxane (p-Dioxane)ND ug/L 07/21/24 13:28 123-91-12.0 10.86
Surrogates
1,2-Dichloroethane-d4 (S)94 %07/21/24 13:28 17060-07-070-130 1
Toluene-d8 (S)102 %07/21/24 13:28 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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Page 11 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW4 Lab ID: 92743080002 Collected: 07/19/24 09:50 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method:
Pace Analytical Services - Charlotte
Monitoring Well Data
Performed by PACE 07/19/24 09:501
pH 6.0 Std. Units 07/19/24 09:501
Temperature 21.2 deg C 07/19/24 09:501
Static Water Level 5.99 feet 07/19/24 09:501
Specific Conductance 741 umhos/c
m 07/19/24 09:501
Oxidation Potential 31.6 mV 07/19/24 09:501
Oxygen, Dissolved 0.8 mg/L 07/19/24 09:50 7782-44-71
Total Well Depth 22.04 feet 07/19/24 09:501
Turbidity 1.1 NTU 07/19/24 09:501
Analytical Method: EPA 6020B Preparation Method: EPA 3005A
Pace Analytical Services - Peachtree Corners, GA
6020 MET ICPMS
Antimony ND ug/L 07/24/24 18:18 7440-36-007/24/24 12:286.0 10.54
Arsenic 3.7J ug/L 07/24/24 18:18 7440-38-207/24/24 12:2810.0 10.84
Barium 1270 ug/L 07/25/24 15:36 7440-39-307/24/24 12:2850052.3
Beryllium ND ug/L 07/24/24 18:18 7440-41-707/24/24 12:281.0 10.094
Cadmium ND ug/L 07/24/24 18:18 7440-43-907/24/24 12:281.0 10.10
Chromium ND ug/L 07/24/24 18:18 7440-47-307/24/24 12:2810.0 11.9
Cobalt 31.9 ug/L 07/24/24 18:18 7440-48-407/24/24 12:2810.0 10.32
Copper ND ug/L 07/24/24 18:18 7440-50-807/24/24 12:2810.0 10.43
Lead ND ug/L 07/24/24 18:18 7439-92-107/24/24 12:2810.0 10.16
Nickel 13.8J ug/L 07/24/24 18:18 7440-02-007/24/24 12:2850.0 12.1
Selenium ND ug/L 07/24/24 18:18 7782-49-207/24/24 12:2810.0 10.96
Silver ND ug/L 07/24/24 18:18 7440-22-407/24/24 12:2810.0 10.31
Thallium ND ug/L 07/24/24 18:18 7440-28-007/24/24 12:285.5 10.38
Vanadium ND ug/L 07/24/24 18:18 7440-62-207/24/24 12:2825.0 10.75
Zinc 28.7 ug/L 07/24/24 18:18 7440-66-607/24/24 12:2810.0 12.4
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
Acetone ND ug/L 08/02/24 07:29 67-64-110015.1
Acrylonitrile ND ug/L 08/02/24 07:29 107-13-120011.8
Benzene 1.2 ug/L 08/02/24 07:29 71-43-21.0 10.34
Bromochloromethane ND ug/L 08/02/24 07:29 74-97-53.0 10.47
Bromodichloromethane ND ug/L 08/02/24 07:29 75-27-41.0 10.31
Bromoform ND ug/L 08/02/24 07:29 75-25-23.0 10.34
Bromomethane ND ug/L 08/02/24 07:29 74-83-9 v210.0 11.7
2-Butanone (MEK)ND ug/L 08/02/24 07:29 78-93-310014.0
Carbon disulfide ND ug/L 08/02/24 07:29 75-15-010010.36
Carbon tetrachloride ND ug/L 08/02/24 07:29 56-23-51.0 10.33
Chlorobenzene 3.5 ug/L 08/02/24 07:29 108-90-73.0 10.28
Chloroethane ND ug/L 08/02/24 07:29 75-00-310.0 10.65
Chloroform ND ug/L 08/02/24 07:29 67-66-35.0 10.43
Chloromethane ND ug/L 08/02/24 07:29 74-87-31.0 10.54
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 12 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW4 Lab ID: 92743080002 Collected: 07/19/24 09:50 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
1,2-Dibromo-3-
chloropropane
ND ug/L 08/02/24 07:29 96-12-813.0 10.34
Dibromochloromethane ND ug/L 08/02/24 07:29 124-48-13.0 10.36
1,2-Dibromoethane (EDB)ND ug/L 08/02/24 07:29 106-93-42.0 10.27
Dibromomethane ND ug/L 08/02/24 07:29 74-95-310.0 10.39
1,2-Dichlorobenzene ND ug/L 08/02/24 07:29 95-50-15.0 10.34
1,4-Dichlorobenzene 3.1 ug/L 08/02/24 07:29 106-46-71.0 10.33
trans-1,4-Dichloro-2-
butene ND ug/L 08/02/24 07:29 110-57-6 v210010.56
1,1-Dichloroethane 1.2J ug/L 08/02/24 07:29 75-34-35.0 10.37
1,2-Dichloroethane ND ug/L 08/02/24 07:29 107-06-21.0 10.32
1,1-Dichloroethene ND ug/L 08/02/24 07:29 75-35-45.0 10.35
cis-1,2-Dichloroethene 0.49J ug/L 08/02/24 07:29 156-59-25.0 10.38
trans-1,2-Dichloroethene ND ug/L 08/02/24 07:29 156-60-55.0 10.40
1,2-Dichloropropane ND ug/L 08/02/24 07:29 78-87-51.0 10.36
cis-1,3-Dichloropropene ND ug/L 08/02/24 07:29 10061-01-51.0 10.36
trans-1,3-Dichloropropene ND ug/L 08/02/24 07:29 10061-02-61.0 10.36
Ethylbenzene ND ug/L 08/02/24 07:29 100-41-41.0 10.30
2-Hexanone ND ug/L 08/02/24 07:29 591-78-650.0 10.48
Iodomethane ND ug/L 08/02/24 07:29 74-88-4 v220.0 19.7
Methylene Chloride ND ug/L 08/02/24 07:29 75-09-25.0 12.0
4-Methyl-2-pentanone
(MIBK)ND ug/L 08/02/24 07:29 108-10-110012.7
Styrene ND ug/L 08/02/24 07:29 100-42-51.0 10.29
1,1,1,2-Tetrachloroethane ND ug/L 08/02/24 07:29 630-20-65.0 10.31
1,1,2,2-Tetrachloroethane ND ug/L 08/02/24 07:29 79-34-53.0 10.22
Tetrachloroethene ND ug/L 08/02/24 07:29 127-18-41.0 10.29
Toluene ND ug/L 08/02/24 07:29 108-88-31.0 10.24
1,1,1-Trichloroethane ND ug/L 08/02/24 07:29 71-55-61.0 10.33
1,1,2-Trichloroethane ND ug/L 08/02/24 07:29 79-00-51.0 10.32
Trichloroethene ND ug/L 08/02/24 07:29 79-01-61.0 10.38
Trichlorofluoromethane ND ug/L 08/02/24 07:29 75-69-41.0 10.30
1,2,3-Trichloropropane ND ug/L 08/02/24 07:29 96-18-41.0 10.26
Vinyl acetate ND ug/L 08/02/24 07:29 108-05-450.0 11.3
Vinyl chloride ND ug/L 08/02/24 07:29 75-01-41.0 10.39
Xylene (Total)ND ug/L 08/02/24 07:29 1330-20-75.0 10.34
Surrogates
4-Bromofluorobenzene (S)98 %08/02/24 07:29 460-00-4 C070-130 1
1,2-Dichloroethane-d4 (S)102 %08/02/24 07:29 17060-07-070-130 1
Toluene-d8 (S)100 %08/02/24 07:29 2037-26-570-130 1
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
1,4-Dioxane (p-Dioxane)23.8 ug/L 07/21/24 15:05 123-91-1 C02.0 10.86
Surrogates
1,2-Dichloroethane-d4 (S)99 %07/21/24 15:05 17060-07-070-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW4 Lab ID: 92743080002 Collected: 07/19/24 09:50 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
Surrogates
Toluene-d8 (S)101 %07/21/24 15:05 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 14 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-DUP Lab ID: 92743080003 Collected: 07/19/24 09:50 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 6020B Preparation Method: EPA 3005A
Pace Analytical Services - Peachtree Corners, GA
6020 MET ICPMS
Antimony ND ug/L 07/24/24 18:21 7440-36-007/24/24 12:286.0 10.54
Arsenic 3.6J ug/L 07/24/24 18:21 7440-38-207/24/24 12:2810.0 10.84
Barium 1270 ug/L 07/25/24 15:40 7440-39-307/24/24 12:2850052.3
Beryllium ND ug/L 07/24/24 18:21 7440-41-707/24/24 12:281.0 10.094
Cadmium ND ug/L 07/24/24 18:21 7440-43-907/24/24 12:281.0 10.10
Chromium ND ug/L 07/24/24 18:21 7440-47-307/24/24 12:2810.0 11.9
Cobalt 32.4 ug/L 07/24/24 18:21 7440-48-407/24/24 12:2810.0 10.32
Copper ND ug/L 07/24/24 18:21 7440-50-807/24/24 12:2810.0 10.43
Lead ND ug/L 07/24/24 18:21 7439-92-107/24/24 12:2810.0 10.16
Nickel 14.1J ug/L 07/24/24 18:21 7440-02-007/24/24 12:2850.0 12.1
Selenium ND ug/L 07/24/24 18:21 7782-49-207/24/24 12:2810.0 10.96
Silver ND ug/L 07/24/24 18:21 7440-22-407/24/24 12:2810.0 10.31
Thallium ND ug/L 07/24/24 18:21 7440-28-007/24/24 12:285.5 10.38
Vanadium ND ug/L 07/24/24 18:21 7440-62-207/24/24 12:2825.0 10.75
Zinc 29.3 ug/L 07/24/24 18:21 7440-66-607/24/24 12:2810.0 12.4
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
Acetone ND ug/L 08/02/24 07:48 67-64-110015.1
Acrylonitrile ND ug/L 08/02/24 07:48 107-13-120011.8
Benzene 1.1 ug/L 08/02/24 07:48 71-43-21.0 10.34
Bromochloromethane ND ug/L 08/02/24 07:48 74-97-53.0 10.47
Bromodichloromethane ND ug/L 08/02/24 07:48 75-27-41.0 10.31
Bromoform ND ug/L 08/02/24 07:48 75-25-23.0 10.34
Bromomethane ND ug/L 08/02/24 07:48 74-83-9 v210.0 11.7
2-Butanone (MEK)ND ug/L 08/02/24 07:48 78-93-310014.0
Carbon disulfide ND ug/L 08/02/24 07:48 75-15-010010.36
Carbon tetrachloride ND ug/L 08/02/24 07:48 56-23-51.0 10.33
Chlorobenzene 3.5 ug/L 08/02/24 07:48 108-90-73.0 10.28
Chloroethane ND ug/L 08/02/24 07:48 75-00-310.0 10.65
Chloroform ND ug/L 08/02/24 07:48 67-66-35.0 10.43
Chloromethane ND ug/L 08/02/24 07:48 74-87-31.0 10.54
1,2-Dibromo-3-
chloropropane ND ug/L 08/02/24 07:48 96-12-813.0 10.34
Dibromochloromethane ND ug/L 08/02/24 07:48 124-48-13.0 10.36
1,2-Dibromoethane (EDB)ND ug/L 08/02/24 07:48 106-93-42.0 10.27
Dibromomethane ND ug/L 08/02/24 07:48 74-95-310.0 10.39
1,2-Dichlorobenzene ND ug/L 08/02/24 07:48 95-50-15.0 10.34
1,4-Dichlorobenzene 3.3 ug/L 08/02/24 07:48 106-46-71.0 10.33
trans-1,4-Dichloro-2-
butene ND ug/L 08/02/24 07:48 110-57-6 v210010.56
1,1-Dichloroethane 1.3J ug/L 08/02/24 07:48 75-34-35.0 10.37
1,2-Dichloroethane ND ug/L 08/02/24 07:48 107-06-21.0 10.32
1,1-Dichloroethene ND ug/L 08/02/24 07:48 75-35-45.0 10.35
cis-1,2-Dichloroethene 0.45J ug/L 08/02/24 07:48 156-59-25.0 10.38
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 15 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-DUP Lab ID: 92743080003 Collected: 07/19/24 09:50 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
trans-1,2-Dichloroethene ND ug/L 08/02/24 07:48 156-60-55.0 10.40
1,2-Dichloropropane ND ug/L 08/02/24 07:48 78-87-51.0 10.36
cis-1,3-Dichloropropene ND ug/L 08/02/24 07:48 10061-01-51.0 10.36
trans-1,3-Dichloropropene ND ug/L 08/02/24 07:48 10061-02-61.0 10.36
Ethylbenzene ND ug/L 08/02/24 07:48 100-41-41.0 10.30
2-Hexanone ND ug/L 08/02/24 07:48 591-78-650.0 10.48
Iodomethane ND ug/L 08/02/24 07:48 74-88-4 v220.0 19.7
Methylene Chloride ND ug/L 08/02/24 07:48 75-09-25.0 12.0
4-Methyl-2-pentanone
(MIBK)ND ug/L 08/02/24 07:48 108-10-110012.7
Styrene ND ug/L 08/02/24 07:48 100-42-51.0 10.29
1,1,1,2-Tetrachloroethane ND ug/L 08/02/24 07:48 630-20-65.0 10.31
1,1,2,2-Tetrachloroethane ND ug/L 08/02/24 07:48 79-34-53.0 10.22
Tetrachloroethene ND ug/L 08/02/24 07:48 127-18-41.0 10.29
Toluene ND ug/L 08/02/24 07:48 108-88-31.0 10.24
1,1,1-Trichloroethane ND ug/L 08/02/24 07:48 71-55-61.0 10.33
1,1,2-Trichloroethane ND ug/L 08/02/24 07:48 79-00-51.0 10.32
Trichloroethene ND ug/L 08/02/24 07:48 79-01-61.0 10.38
Trichlorofluoromethane ND ug/L 08/02/24 07:48 75-69-41.0 10.30
1,2,3-Trichloropropane ND ug/L 08/02/24 07:48 96-18-41.0 10.26
Vinyl acetate ND ug/L 08/02/24 07:48 108-05-450.0 11.3
Vinyl chloride ND ug/L 08/02/24 07:48 75-01-41.0 10.39
Xylene (Total)ND ug/L 08/02/24 07:48 1330-20-75.0 10.34
Surrogates
4-Bromofluorobenzene (S)96 %08/02/24 07:48 460-00-4 C070-130 1
1,2-Dichloroethane-d4 (S)98 %08/02/24 07:48 17060-07-070-130 1
Toluene-d8 (S)97 %08/02/24 07:48 2037-26-570-130 1
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
1,4-Dioxane (p-Dioxane)23.8 ug/L 07/21/24 15:24 123-91-1 C02.0 10.86
Surrogates
1,2-Dichloroethane-d4 (S)98 %07/21/24 15:24 17060-07-070-130 1
Toluene-d8 (S)101 %07/21/24 15:24 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 16 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW3 Lab ID: 92743080004 Collected: 07/19/24 10:35 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method:
Pace Analytical Services - Charlotte
Monitoring Well Data
Performed by PACE 07/19/24 10:351
pH 5.6 Std. Units 07/19/24 10:351
Temperature 24.7 deg C 07/19/24 10:351
Static Water Level 10.88 feet 07/19/24 10:351
Specific Conductance 124.3 umhos/c
m 07/19/24 10:351
Oxidation Potential 56.9 mV 07/19/24 10:351
Oxygen, Dissolved 0.7 mg/L 07/19/24 10:35 7782-44-71
Total Well Depth 22.58 feet 07/19/24 10:351
Turbidity 4.1 NTU 07/19/24 10:351
Analytical Method: EPA 6020B Preparation Method: EPA 3005A
Pace Analytical Services - Peachtree Corners, GA
6020 MET ICPMS
Antimony ND ug/L 07/24/24 18:25 7440-36-007/24/24 12:286.0 10.54
Arsenic 2.2J ug/L 07/24/24 18:25 7440-38-207/24/24 12:2810.0 10.84
Barium 99.5J ug/L 07/24/24 18:25 7440-39-307/24/24 12:2810010.47
Beryllium 0.22J ug/L 07/24/24 18:25 7440-41-707/24/24 12:281.0 10.094
Cadmium ND ug/L 07/24/24 18:25 7440-43-907/24/24 12:281.0 10.10
Chromium 3.2J ug/L 07/24/24 18:25 7440-47-307/24/24 12:2810.0 11.9
Cobalt 13.1 ug/L 07/24/24 18:25 7440-48-407/24/24 12:2810.0 10.32
Copper 10.8 ug/L 07/24/24 18:25 7440-50-807/24/24 12:2810.0 10.43
Lead 2.4J ug/L 07/24/24 18:25 7439-92-107/24/24 12:2810.0 10.16
Nickel 10.1J ug/L 07/24/24 18:25 7440-02-007/24/24 12:2850.0 12.1
Selenium ND ug/L 07/24/24 18:25 7782-49-207/24/24 12:2810.0 10.96
Silver ND ug/L 07/24/24 18:25 7440-22-407/24/24 12:2810.0 10.31
Thallium ND ug/L 07/24/24 18:25 7440-28-007/24/24 12:285.5 10.38
Vanadium 1.8J ug/L 07/24/24 18:25 7440-62-2 B07/24/24 12:2825.0 10.75
Zinc 9.4J ug/L 07/24/24 18:25 7440-66-607/24/24 12:2810.0 12.4
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
Acetone ND ug/L 08/02/24 08:07 67-64-110015.1
Acrylonitrile ND ug/L 08/02/24 08:07 107-13-120011.8
Benzene ND ug/L 08/02/24 08:07 71-43-21.0 10.34
Bromochloromethane ND ug/L 08/02/24 08:07 74-97-53.0 10.47
Bromodichloromethane ND ug/L 08/02/24 08:07 75-27-41.0 10.31
Bromoform ND ug/L 08/02/24 08:07 75-25-23.0 10.34
Bromomethane ND ug/L 08/02/24 08:07 74-83-9 v210.0 11.7
2-Butanone (MEK)ND ug/L 08/02/24 08:07 78-93-310014.0
Carbon disulfide ND ug/L 08/02/24 08:07 75-15-010010.36
Carbon tetrachloride ND ug/L 08/02/24 08:07 56-23-51.0 10.33
Chlorobenzene ND ug/L 08/02/24 08:07 108-90-73.0 10.28
Chloroethane ND ug/L 08/02/24 08:07 75-00-310.0 10.65
Chloroform ND ug/L 08/02/24 08:07 67-66-35.0 10.43
Chloromethane ND ug/L 08/02/24 08:07 74-87-31.0 10.54
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 17 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW3 Lab ID: 92743080004 Collected: 07/19/24 10:35 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
1,2-Dibromo-3-
chloropropane
ND ug/L 08/02/24 08:07 96-12-813.0 10.34
Dibromochloromethane ND ug/L 08/02/24 08:07 124-48-13.0 10.36
1,2-Dibromoethane (EDB)ND ug/L 08/02/24 08:07 106-93-42.0 10.27
Dibromomethane ND ug/L 08/02/24 08:07 74-95-310.0 10.39
1,2-Dichlorobenzene ND ug/L 08/02/24 08:07 95-50-15.0 10.34
1,4-Dichlorobenzene ND ug/L 08/02/24 08:07 106-46-71.0 10.33
trans-1,4-Dichloro-2-
butene ND ug/L 08/02/24 08:07 110-57-6 v210010.56
1,1-Dichloroethane ND ug/L 08/02/24 08:07 75-34-35.0 10.37
1,2-Dichloroethane ND ug/L 08/02/24 08:07 107-06-21.0 10.32
1,1-Dichloroethene ND ug/L 08/02/24 08:07 75-35-45.0 10.35
cis-1,2-Dichloroethene ND ug/L 08/02/24 08:07 156-59-25.0 10.38
trans-1,2-Dichloroethene ND ug/L 08/02/24 08:07 156-60-55.0 10.40
1,2-Dichloropropane ND ug/L 08/02/24 08:07 78-87-51.0 10.36
cis-1,3-Dichloropropene ND ug/L 08/02/24 08:07 10061-01-51.0 10.36
trans-1,3-Dichloropropene ND ug/L 08/02/24 08:07 10061-02-61.0 10.36
Ethylbenzene ND ug/L 08/02/24 08:07 100-41-41.0 10.30
2-Hexanone ND ug/L 08/02/24 08:07 591-78-650.0 10.48
Iodomethane ND ug/L 08/02/24 08:07 74-88-4 v220.0 19.7
Methylene Chloride ND ug/L 08/02/24 08:07 75-09-25.0 12.0
4-Methyl-2-pentanone
(MIBK)ND ug/L 08/02/24 08:07 108-10-110012.7
Styrene ND ug/L 08/02/24 08:07 100-42-51.0 10.29
1,1,1,2-Tetrachloroethane ND ug/L 08/02/24 08:07 630-20-65.0 10.31
1,1,2,2-Tetrachloroethane ND ug/L 08/02/24 08:07 79-34-53.0 10.22
Tetrachloroethene ND ug/L 08/02/24 08:07 127-18-41.0 10.29
Toluene ND ug/L 08/02/24 08:07 108-88-31.0 10.24
1,1,1-Trichloroethane ND ug/L 08/02/24 08:07 71-55-61.0 10.33
1,1,2-Trichloroethane ND ug/L 08/02/24 08:07 79-00-51.0 10.32
Trichloroethene ND ug/L 08/02/24 08:07 79-01-61.0 10.38
Trichlorofluoromethane ND ug/L 08/02/24 08:07 75-69-41.0 10.30
1,2,3-Trichloropropane ND ug/L 08/02/24 08:07 96-18-41.0 10.26
Vinyl acetate ND ug/L 08/02/24 08:07 108-05-450.0 11.3
Vinyl chloride ND ug/L 08/02/24 08:07 75-01-41.0 10.39
Xylene (Total)ND ug/L 08/02/24 08:07 1330-20-75.0 10.34
Surrogates
4-Bromofluorobenzene (S)99 %08/02/24 08:07 460-00-470-130 1
1,2-Dichloroethane-d4 (S)94 %08/02/24 08:07 17060-07-070-130 1
Toluene-d8 (S)98 %08/02/24 08:07 2037-26-570-130 1
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
1,4-Dioxane (p-Dioxane)ND ug/L 07/21/24 14:26 123-91-12.0 10.86
Surrogates
1,2-Dichloroethane-d4 (S)94 %07/21/24 14:26 17060-07-070-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 18 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW3 Lab ID: 92743080004 Collected: 07/19/24 10:35 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
Surrogates
Toluene-d8 (S)101 %07/21/24 14:26 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 19 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW2 Lab ID: 92743080005 Collected: 07/19/24 12:05 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method:
Pace Analytical Services - Charlotte
Monitoring Well Data
Performed by PACE 07/19/24 12:051
pH 4.9 Std. Units 07/19/24 12:051
Temperature 23.9 deg C 07/19/24 12:051
Static Water Level 11.61 feet 07/19/24 12:051
Specific Conductance 156.1 umhos/c
m 07/19/24 12:051
Oxidation Potential 35.6 mV 07/19/24 12:051
Oxygen, Dissolved 0.5 mg/L 07/19/24 12:05 7782-44-71
Total Well Depth 23.63 feet 07/19/24 12:051
Turbidity 715.2 NTU 07/19/24 12:051
Analytical Method: EPA 6020B Preparation Method: EPA 3005A
Pace Analytical Services - Peachtree Corners, GA
6020 MET ICPMS
Antimony ND ug/L 07/24/24 18:29 7440-36-007/24/24 12:286.0 10.54
Arsenic 3.4J ug/L 07/24/24 18:29 7440-38-207/24/24 12:2810.0 10.84
Barium 366 ug/L 07/24/24 18:29 7440-39-307/24/24 12:2810010.47
Beryllium 1.2 ug/L 07/24/24 18:29 7440-41-707/24/24 12:281.0 10.094
Cadmium 0.75J ug/L 07/24/24 18:29 7440-43-907/24/24 12:281.0 10.10
Chromium 53.8 ug/L 07/24/24 18:29 7440-47-307/24/24 12:2810.0 11.9
Cobalt 8.3J ug/L 07/24/24 18:29 7440-48-407/24/24 12:2810.0 10.32
Copper 7.2J ug/L 07/24/24 18:29 7440-50-807/24/24 12:2810.0 10.43
Lead 13.8 ug/L 07/24/24 18:29 7439-92-107/24/24 12:2810.0 10.16
Nickel 39.7J ug/L 07/24/24 18:29 7440-02-007/24/24 12:2850.0 12.1
Selenium 1.7J ug/L 07/24/24 18:29 7782-49-207/24/24 12:2810.0 10.96
Silver 9.5J ug/L 07/24/24 18:29 7440-22-407/24/24 12:2810.0 10.31
Thallium ND ug/L 07/24/24 18:29 7440-28-007/24/24 12:285.5 10.38
Vanadium 6.4J ug/L 07/24/24 18:29 7440-62-2 B07/24/24 12:2825.0 10.75
Zinc 75.3 ug/L 07/24/24 18:29 7440-66-607/24/24 12:2810.0 12.4
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
Acetone ND ug/L 08/02/24 08:25 67-64-110015.1
Acrylonitrile ND ug/L 08/02/24 08:25 107-13-120011.8
Benzene 0.95J ug/L 08/02/24 08:25 71-43-21.0 10.34
Bromochloromethane ND ug/L 08/02/24 08:25 74-97-53.0 10.47
Bromodichloromethane ND ug/L 08/02/24 08:25 75-27-41.0 10.31
Bromoform ND ug/L 08/02/24 08:25 75-25-23.0 10.34
Bromomethane ND ug/L 08/02/24 08:25 74-83-9 v210.0 11.7
2-Butanone (MEK)ND ug/L 08/02/24 08:25 78-93-310014.0
Carbon disulfide ND ug/L 08/02/24 08:25 75-15-010010.36
Carbon tetrachloride ND ug/L 08/02/24 08:25 56-23-51.0 10.33
Chlorobenzene 0.91J ug/L 08/02/24 08:25 108-90-73.0 10.28
Chloroethane ND ug/L 08/02/24 08:25 75-00-310.0 10.65
Chloroform ND ug/L 08/02/24 08:25 67-66-35.0 10.43
Chloromethane ND ug/L 08/02/24 08:25 74-87-31.0 10.54
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 20 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW2 Lab ID: 92743080005 Collected: 07/19/24 12:05 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
1,2-Dibromo-3-
chloropropane
ND ug/L 08/02/24 08:25 96-12-813.0 10.34
Dibromochloromethane ND ug/L 08/02/24 08:25 124-48-13.0 10.36
1,2-Dibromoethane (EDB)ND ug/L 08/02/24 08:25 106-93-42.0 10.27
Dibromomethane ND ug/L 08/02/24 08:25 74-95-310.0 10.39
1,2-Dichlorobenzene ND ug/L 08/02/24 08:25 95-50-15.0 10.34
1,4-Dichlorobenzene 0.96J ug/L 08/02/24 08:25 106-46-71.0 10.33
trans-1,4-Dichloro-2-
butene ND ug/L 08/02/24 08:25 110-57-6 v210010.56
1,1-Dichloroethane 1.7J ug/L 08/02/24 08:25 75-34-35.0 10.37
1,2-Dichloroethane ND ug/L 08/02/24 08:25 107-06-21.0 10.32
1,1-Dichloroethene ND ug/L 08/02/24 08:25 75-35-45.0 10.35
cis-1,2-Dichloroethene 3.0J ug/L 08/02/24 08:25 156-59-25.0 10.38
trans-1,2-Dichloroethene ND ug/L 08/02/24 08:25 156-60-55.0 10.40
1,2-Dichloropropane ND ug/L 08/02/24 08:25 78-87-51.0 10.36
cis-1,3-Dichloropropene ND ug/L 08/02/24 08:25 10061-01-51.0 10.36
trans-1,3-Dichloropropene ND ug/L 08/02/24 08:25 10061-02-61.0 10.36
Ethylbenzene ND ug/L 08/02/24 08:25 100-41-41.0 10.30
2-Hexanone ND ug/L 08/02/24 08:25 591-78-650.0 10.48
Iodomethane ND ug/L 08/02/24 08:25 74-88-4 v220.0 19.7
Methylene Chloride ND ug/L 08/02/24 08:25 75-09-25.0 12.0
4-Methyl-2-pentanone
(MIBK)ND ug/L 08/02/24 08:25 108-10-110012.7
Styrene ND ug/L 08/02/24 08:25 100-42-51.0 10.29
1,1,1,2-Tetrachloroethane ND ug/L 08/02/24 08:25 630-20-65.0 10.31
1,1,2,2-Tetrachloroethane ND ug/L 08/02/24 08:25 79-34-53.0 10.22
Tetrachloroethene ND ug/L 08/02/24 08:25 127-18-41.0 10.29
Toluene ND ug/L 08/02/24 08:25 108-88-31.0 10.24
1,1,1-Trichloroethane ND ug/L 08/02/24 08:25 71-55-61.0 10.33
1,1,2-Trichloroethane ND ug/L 08/02/24 08:25 79-00-51.0 10.32
Trichloroethene ND ug/L 08/02/24 08:25 79-01-61.0 10.38
Trichlorofluoromethane ND ug/L 08/02/24 08:25 75-69-41.0 10.30
1,2,3-Trichloropropane ND ug/L 08/02/24 08:25 96-18-41.0 10.26
Vinyl acetate ND ug/L 08/02/24 08:25 108-05-450.0 11.3
Vinyl chloride 0.65J ug/L 08/02/24 08:25 75-01-41.0 10.39
Xylene (Total)ND ug/L 08/02/24 08:25 1330-20-75.0 10.34
Surrogates
4-Bromofluorobenzene (S)98 %08/02/24 08:25 460-00-4 C070-130 1
1,2-Dichloroethane-d4 (S)96 %08/02/24 08:25 17060-07-070-130 1
Toluene-d8 (S)99 %08/02/24 08:25 2037-26-570-130 1
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
1,4-Dioxane (p-Dioxane)11.2 ug/L 07/21/24 14:45 123-91-1 C02.0 10.86
Surrogates
1,2-Dichloroethane-d4 (S)100 %07/21/24 14:45 17060-07-070-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 21 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-MW2 Lab ID: 92743080005 Collected: 07/19/24 12:05 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
Surrogates
Toluene-d8 (S)103 %07/21/24 14:45 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 22 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-Field Blank Lab ID: 92743080006 Collected: 07/19/24 12:05 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 6020B Preparation Method: EPA 3005A
Pace Analytical Services - Peachtree Corners, GA
6020 MET ICPMS
Antimony ND ug/L 07/24/24 18:32 7440-36-007/24/24 12:286.0 10.54
Arsenic ND ug/L 07/24/24 18:32 7440-38-207/24/24 12:2810.0 10.84
Barium ND ug/L 07/24/24 18:32 7440-39-307/24/24 12:2810010.47
Beryllium ND ug/L 07/24/24 18:32 7440-41-707/24/24 12:281.0 10.094
Cadmium ND ug/L 07/24/24 18:32 7440-43-907/24/24 12:281.0 10.10
Chromium ND ug/L 07/24/24 18:32 7440-47-307/24/24 12:2810.0 11.9
Cobalt ND ug/L 07/24/24 18:32 7440-48-407/24/24 12:2810.0 10.32
Copper ND ug/L 07/24/24 18:32 7440-50-807/24/24 12:2810.0 10.43
Lead ND ug/L 07/24/24 18:32 7439-92-107/24/24 12:2810.0 10.16
Nickel ND ug/L 07/24/24 18:32 7440-02-007/24/24 12:2850.0 12.1
Selenium ND ug/L 07/24/24 18:32 7782-49-207/24/24 12:2810.0 10.96
Silver ND ug/L 07/24/24 18:32 7440-22-407/24/24 12:2810.0 10.31
Thallium ND ug/L 07/24/24 18:32 7440-28-007/24/24 12:285.5 10.38
Vanadium 1.2J ug/L 07/24/24 18:32 7440-62-2 B07/24/24 12:2825.0 10.75
Zinc ND ug/L 07/24/24 18:32 7440-66-607/24/24 12:2810.0 12.4
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
Acetone ND ug/L 08/02/24 03:26 67-64-110015.1
Acrylonitrile ND ug/L 08/02/24 03:26 107-13-120011.8
Benzene ND ug/L 08/02/24 03:26 71-43-21.0 10.34
Bromochloromethane ND ug/L 08/02/24 03:26 74-97-53.0 10.47
Bromodichloromethane ND ug/L 08/02/24 03:26 75-27-41.0 10.31
Bromoform ND ug/L 08/02/24 03:26 75-25-23.0 10.34
Bromomethane ND ug/L 08/02/24 03:26 74-83-9 v210.0 11.7
2-Butanone (MEK)ND ug/L 08/02/24 03:26 78-93-310014.0
Carbon disulfide ND ug/L 08/02/24 03:26 75-15-010010.36
Carbon tetrachloride ND ug/L 08/02/24 03:26 56-23-51.0 10.33
Chlorobenzene ND ug/L 08/02/24 03:26 108-90-73.0 10.28
Chloroethane ND ug/L 08/02/24 03:26 75-00-310.0 10.65
Chloroform ND ug/L 08/02/24 03:26 67-66-35.0 10.43
Chloromethane ND ug/L 08/02/24 03:26 74-87-31.0 10.54
1,2-Dibromo-3-
chloropropane ND ug/L 08/02/24 03:26 96-12-813.0 10.34
Dibromochloromethane ND ug/L 08/02/24 03:26 124-48-13.0 10.36
1,2-Dibromoethane (EDB)ND ug/L 08/02/24 03:26 106-93-42.0 10.27
Dibromomethane ND ug/L 08/02/24 03:26 74-95-310.0 10.39
1,2-Dichlorobenzene ND ug/L 08/02/24 03:26 95-50-15.0 10.34
1,4-Dichlorobenzene ND ug/L 08/02/24 03:26 106-46-71.0 10.33
trans-1,4-Dichloro-2-
butene ND ug/L 08/02/24 03:26 110-57-6 v210010.56
1,1-Dichloroethane ND ug/L 08/02/24 03:26 75-34-35.0 10.37
1,2-Dichloroethane ND ug/L 08/02/24 03:26 107-06-21.0 10.32
1,1-Dichloroethene ND ug/L 08/02/24 03:26 75-35-45.0 10.35
cis-1,2-Dichloroethene ND ug/L 08/02/24 03:26 156-59-25.0 10.38
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 23 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: 6201-Field Blank Lab ID: 92743080006 Collected: 07/19/24 12:05 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
trans-1,2-Dichloroethene ND ug/L 08/02/24 03:26 156-60-55.0 10.40
1,2-Dichloropropane ND ug/L 08/02/24 03:26 78-87-51.0 10.36
cis-1,3-Dichloropropene ND ug/L 08/02/24 03:26 10061-01-51.0 10.36
trans-1,3-Dichloropropene ND ug/L 08/02/24 03:26 10061-02-61.0 10.36
Ethylbenzene ND ug/L 08/02/24 03:26 100-41-41.0 10.30
2-Hexanone ND ug/L 08/02/24 03:26 591-78-650.0 10.48
Iodomethane ND ug/L 08/02/24 03:26 74-88-4 v220.0 19.7
Methylene Chloride ND ug/L 08/02/24 03:26 75-09-25.0 12.0
4-Methyl-2-pentanone
(MIBK)ND ug/L 08/02/24 03:26 108-10-110012.7
Styrene ND ug/L 08/02/24 03:26 100-42-51.0 10.29
1,1,1,2-Tetrachloroethane ND ug/L 08/02/24 03:26 630-20-65.0 10.31
1,1,2,2-Tetrachloroethane ND ug/L 08/02/24 03:26 79-34-53.0 10.22
Tetrachloroethene ND ug/L 08/02/24 03:26 127-18-41.0 10.29
Toluene ND ug/L 08/02/24 03:26 108-88-31.0 10.24
1,1,1-Trichloroethane ND ug/L 08/02/24 03:26 71-55-61.0 10.33
1,1,2-Trichloroethane ND ug/L 08/02/24 03:26 79-00-51.0 10.32
Trichloroethene ND ug/L 08/02/24 03:26 79-01-61.0 10.38
Trichlorofluoromethane ND ug/L 08/02/24 03:26 75-69-41.0 10.30
1,2,3-Trichloropropane ND ug/L 08/02/24 03:26 96-18-41.0 10.26
Vinyl acetate ND ug/L 08/02/24 03:26 108-05-450.0 11.3
Vinyl chloride ND ug/L 08/02/24 03:26 75-01-41.0 10.39
Xylene (Total)ND ug/L 08/02/24 03:26 1330-20-75.0 10.34
Surrogates
4-Bromofluorobenzene (S)97 %08/02/24 03:26 460-00-470-130 1
1,2-Dichloroethane-d4 (S)99 %08/02/24 03:26 17060-07-070-130 1
Toluene-d8 (S)97 %08/02/24 03:26 2037-26-570-130 1
Analytical Method: EPA 8260D Mod.
Pace Analytical Services - Charlotte
8260D MSV SIM
1,4-Dioxane (p-Dioxane)ND ug/L 07/21/24 13:09 123-91-12.0 10.86
Surrogates
1,2-Dichloroethane-d4 (S)91 %07/21/24 13:09 17060-07-070-130 1
Toluene-d8 (S)101 %07/21/24 13:09 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 24 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: Trip Blank Lab ID: 92743080007 Collected: 07/19/24 00:45 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
Acetone ND ug/L 08/02/24 03:45 67-64-110015.1
Acrylonitrile ND ug/L 08/02/24 03:45 107-13-120011.8
Benzene ND ug/L 08/02/24 03:45 71-43-21.0 10.34
Bromochloromethane ND ug/L 08/02/24 03:45 74-97-53.0 10.47
Bromodichloromethane ND ug/L 08/02/24 03:45 75-27-41.0 10.31
Bromoform ND ug/L 08/02/24 03:45 75-25-23.0 10.34
Bromomethane ND ug/L 08/02/24 03:45 74-83-9 v210.0 11.7
2-Butanone (MEK)ND ug/L 08/02/24 03:45 78-93-310014.0
Carbon disulfide ND ug/L 08/02/24 03:45 75-15-010010.36
Carbon tetrachloride ND ug/L 08/02/24 03:45 56-23-51.0 10.33
Chlorobenzene ND ug/L 08/02/24 03:45 108-90-73.0 10.28
Chloroethane ND ug/L 08/02/24 03:45 75-00-310.0 10.65
Chloroform ND ug/L 08/02/24 03:45 67-66-35.0 10.43
Chloromethane ND ug/L 08/02/24 03:45 74-87-31.0 10.54
1,2-Dibromo-3-
chloropropane ND ug/L 08/02/24 03:45 96-12-813.0 10.34
Dibromochloromethane ND ug/L 08/02/24 03:45 124-48-13.0 10.36
1,2-Dibromoethane (EDB)ND ug/L 08/02/24 03:45 106-93-42.0 10.27
Dibromomethane ND ug/L 08/02/24 03:45 74-95-310.0 10.39
1,2-Dichlorobenzene ND ug/L 08/02/24 03:45 95-50-15.0 10.34
1,4-Dichlorobenzene ND ug/L 08/02/24 03:45 106-46-71.0 10.33
trans-1,4-Dichloro-2-
butene ND ug/L 08/02/24 03:45 110-57-6 v210010.56
1,1-Dichloroethane ND ug/L 08/02/24 03:45 75-34-35.0 10.37
1,2-Dichloroethane ND ug/L 08/02/24 03:45 107-06-21.0 10.32
1,1-Dichloroethene ND ug/L 08/02/24 03:45 75-35-45.0 10.35
cis-1,2-Dichloroethene ND ug/L 08/02/24 03:45 156-59-25.0 10.38
trans-1,2-Dichloroethene ND ug/L 08/02/24 03:45 156-60-55.0 10.40
1,2-Dichloropropane ND ug/L 08/02/24 03:45 78-87-51.0 10.36
cis-1,3-Dichloropropene ND ug/L 08/02/24 03:45 10061-01-51.0 10.36
trans-1,3-Dichloropropene ND ug/L 08/02/24 03:45 10061-02-61.0 10.36
Ethylbenzene ND ug/L 08/02/24 03:45 100-41-41.0 10.30
2-Hexanone ND ug/L 08/02/24 03:45 591-78-650.0 10.48
Iodomethane ND ug/L 08/02/24 03:45 74-88-4 v220.0 19.7
Methylene Chloride ND ug/L 08/02/24 03:45 75-09-25.0 12.0
4-Methyl-2-pentanone
(MIBK)ND ug/L 08/02/24 03:45 108-10-110012.7
Styrene ND ug/L 08/02/24 03:45 100-42-51.0 10.29
1,1,1,2-Tetrachloroethane ND ug/L 08/02/24 03:45 630-20-65.0 10.31
1,1,2,2-Tetrachloroethane ND ug/L 08/02/24 03:45 79-34-53.0 10.22
Tetrachloroethene ND ug/L 08/02/24 03:45 127-18-41.0 10.29
Toluene ND ug/L 08/02/24 03:45 108-88-31.0 10.24
1,1,1-Trichloroethane ND ug/L 08/02/24 03:45 71-55-61.0 10.33
1,1,2-Trichloroethane ND ug/L 08/02/24 03:45 79-00-51.0 10.32
Trichloroethene ND ug/L 08/02/24 03:45 79-01-61.0 10.38
Trichlorofluoromethane ND ug/L 08/02/24 03:45 75-69-41.0 10.30
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 25 of 49
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Sample: Trip Blank Lab ID: 92743080007 Collected: 07/19/24 00:45 Received: 07/19/24 17:45 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualLimitLimit
Report Reg.
MDL
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
8260D MSV Low Level Landfill
1,2,3-Trichloropropane ND ug/L 08/02/24 03:45 96-18-41.0 10.26
Vinyl acetate ND ug/L 08/02/24 03:45 108-05-450.0 11.3
Vinyl chloride ND ug/L 08/02/24 03:45 75-01-41.0 10.39
Xylene (Total)ND ug/L 08/02/24 03:45 1330-20-75.0 10.34
Surrogates
4-Bromofluorobenzene (S)97 %08/02/24 03:45 460-00-470-130 1
1,2-Dichloroethane-d4 (S)97 %08/02/24 03:45 17060-07-070-130 1
Toluene-d8 (S)98 %08/02/24 03:45 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 26 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
870621
EPA 3005A
EPA 6020B
6020 MET
Laboratory:Pace Analytical Services - Peachtree Corners, GA
Associated Lab Samples: 92743080001, 92743080002, 92743080003, 92743080004, 92743080005, 92743080006
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4486404
Associated Lab Samples:92743080001, 92743080002, 92743080003, 92743080004, 92743080005, 92743080006
Matrix: Water
AnalyzedMDL
Antimony ug/L ND 6.0 07/24/24 17:590.54
Arsenic ug/L ND 10.0 07/24/24 17:590.84
Barium ug/L ND 100 07/24/24 17:590.47
Beryllium ug/L ND 1.0 07/24/24 17:590.094
Cadmium ug/L ND 1.0 07/24/24 17:590.10
Chromium ug/L ND 10.0 07/24/24 17:591.9
Cobalt ug/L ND 10.0 07/24/24 17:590.32
Copper ug/L ND 10.0 07/24/24 17:590.43
Lead ug/L ND 10.0 07/24/24 17:590.16
Nickel ug/L ND 50.0 07/24/24 17:592.1
Selenium ug/L ND 10.0 07/24/24 17:590.96
Silver ug/L ND 10.0 07/24/24 17:590.31
Thallium ug/L ND 5.5 07/24/24 17:590.38
Vanadium ug/L 0.79J 25.0 07/24/24 17:590.75
Zinc ug/L ND 10.0 07/24/24 17:592.4
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4486405LABORATORY CONTROL SAMPLE:
LCSSpike
Antimony ug/L 99.6100 100 80-120
Arsenic ug/L 97.5100 98 80-120
Barium ug/L 92.7J100 93 80-120
Beryllium ug/L 105100 105 80-120
Cadmium ug/L 99.6100 100 80-120
Chromium ug/L 98.5100 98 80-120
Cobalt ug/L 96.9100 97 80-120
Copper ug/L 97.8100 98 80-120
Lead ug/L 98.1100 98 80-120
Nickel ug/L 97.3100 97 80-120
Selenium ug/L 99.2100 99 80-120
Silver ug/L 99.6100 100 80-120
Thallium ug/L 93.9100 94 80-120
Vanadium ug/L 98.3100 98 80-120
Zinc ug/L 98.3100 98 80-120
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 27 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4486406MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92743163010
4486407
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Antimony ug/L 100 100 75-125102 1 20100ND100 102
Arsenic ug/L 100 101 75-125101 0 20100ND104 104
Barium ug/L 100 104 75-125107 2 201000.072
mg/L 176 179
Beryllium ug/L 100 96 75-12596 0 20100ND96.5 96.1
Cadmium ug/L 100 99 75-125100 1 20100ND98.6 99.7
Chromium ug/L 100 102 75-125100 2 20100ND103 102
Cobalt ug/L 100 98 75-12598 0 20100ND105 106
Copper ug/L 100 95 75-12594 2 20100ND95.8 94.2
Lead ug/L 100 93 75-12594 1 20100ND93.7 94.5
Nickel ug/L 100 97 75-12597 0 201000.064
mg/L 162 161
Selenium ug/L 100 100 75-125101 1 20100ND100 101
Silver ug/L 100 92 75-12593 1 20100ND92.4 93.3
Thallium ug/L 100 91 75-12591 0 20100ND91.0 91.3
Vanadium ug/L 100 102 75-125102 0 20100ND103 103
Zinc ug/L 100 97 75-12597 0 20100ND98.8 98.5
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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[phone]
Page 28 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
873179
EPA 3005A
EPA 6020B
6020 MET Dissolved
Laboratory:Pace Analytical Services - Peachtree Corners, GA
Associated Lab Samples: 92743080001
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4498448
Associated Lab Samples:92743080001
Matrix: Water
AnalyzedMDL
Arsenic, Dissolved ug/L ND 10.0 08/05/24 15:080.84
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4498449LABORATORY CONTROL SAMPLE:
LCSSpike
Arsenic, Dissolved ug/L 95.3100 95 80-120
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4498450MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92743080001
4498451
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Arsenic, Dissolved ug/L 100 101 75-125102 2 201008.8J 109 111
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 29 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
872048
EPA 8260D
EPA 8260D
8260D MSV Low Level Landfill
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples: 92743080001, 92743080002, 92743080003, 92743080004, 92743080005, 92743080006, 92743080007
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4493008
Associated Lab Samples:92743080001, 92743080002, 92743080003, 92743080004, 92743080005, 92743080006, 92743080007
Matrix: Water
AnalyzedMDL
1,1,1,2-Tetrachloroethane ug/L ND 5.0 08/02/24 02:300.31
1,1,1-Trichloroethane ug/L ND 1.0 08/02/24 02:300.33
1,1,2,2-Tetrachloroethane ug/L ND 3.0 08/02/24 02:300.22
1,1,2-Trichloroethane ug/L ND 1.0 08/02/24 02:300.32
1,1-Dichloroethane ug/L ND 5.0 08/02/24 02:300.37
1,1-Dichloroethene ug/L ND 5.0 08/02/24 02:300.35
1,2,3-Trichloropropane ug/L ND 1.0 08/02/24 02:300.26
1,2-Dibromo-3-chloropropane ug/L ND 13.0 08/02/24 02:300.34
1,2-Dibromoethane (EDB)ug/L ND 2.0 08/02/24 02:300.27
1,2-Dichlorobenzene ug/L ND 5.0 08/02/24 02:300.34
1,2-Dichloroethane ug/L ND 1.0 08/02/24 02:300.32
1,2-Dichloropropane ug/L ND 1.0 08/02/24 02:300.36
1,4-Dichlorobenzene ug/L ND 1.0 08/02/24 02:300.33
2-Butanone (MEK)ug/L ND 100 08/02/24 02:304.0
2-Hexanone ug/L ND 50.0 08/02/24 02:300.48
4-Methyl-2-pentanone (MIBK)ug/L ND 100 08/02/24 02:302.7
Acetone ug/L ND 100 08/02/24 02:305.1
Acrylonitrile ug/L ND 200 08/02/24 02:301.8
Benzene ug/L ND 1.0 08/02/24 02:300.34
Bromochloromethane ug/L ND 3.0 08/02/24 02:300.47
Bromodichloromethane ug/L ND 1.0 08/02/24 02:300.31
Bromoform ug/L ND 3.0 08/02/24 02:300.34
Bromomethane ug/L ND 10.0 v208/02/24 02:301.7
Carbon disulfide ug/L ND 100 08/02/24 02:300.36
Carbon tetrachloride ug/L ND 1.0 08/02/24 02:300.33
Chlorobenzene ug/L ND 3.0 08/02/24 02:300.28
Chloroethane ug/L ND 10.0 08/02/24 02:300.65
Chloroform ug/L ND 5.0 08/02/24 02:300.43
Chloromethane ug/L ND 1.0 08/02/24 02:300.54
cis-1,2-Dichloroethene ug/L ND 5.0 08/02/24 02:300.38
cis-1,3-Dichloropropene ug/L ND 1.0 08/02/24 02:300.36
Dibromochloromethane ug/L ND 3.0 08/02/24 02:300.36
Dibromomethane ug/L ND 10.0 08/02/24 02:300.39
Ethylbenzene ug/L ND 1.0 08/02/24 02:300.30
Iodomethane ug/L ND 20.0 v208/02/24 02:309.7
Methylene Chloride ug/L ND 5.0 08/02/24 02:302.0
Styrene ug/L ND 1.0 08/02/24 02:300.29
Tetrachloroethene ug/L ND 1.0 08/02/24 02:300.29
Toluene ug/L ND 1.0 08/02/24 02:300.24
trans-1,2-Dichloroethene ug/L ND 5.0 08/02/24 02:300.40
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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Page 30 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4493008
Associated Lab Samples:92743080001, 92743080002, 92743080003, 92743080004, 92743080005, 92743080006, 92743080007
Matrix: Water
AnalyzedMDL
trans-1,3-Dichloropropene ug/L ND 1.0 08/02/24 02:300.36
trans-1,4-Dichloro-2-butene ug/L ND 100 v208/02/24 02:300.56
Trichloroethene ug/L ND 1.0 08/02/24 02:300.38
Trichlorofluoromethane ug/L ND 1.0 08/02/24 02:300.30
Vinyl acetate ug/L ND 50.0 08/02/24 02:301.3
Vinyl chloride ug/L ND 1.0 08/02/24 02:300.39
Xylene (Total)ug/L ND 5.0 08/02/24 02:300.34
1,2-Dichloroethane-d4 (S)%98 70-130 08/02/24 02:30
4-Bromofluorobenzene (S)%98 70-130 08/02/24 02:30
Toluene-d8 (S)%97 70-130 08/02/24 02:30
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4493009LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 18.620 93 70-130
1,1,1-Trichloroethane ug/L 16.220 81 70-130
1,1,2,2-Tetrachloroethane ug/L 18.420 92 70-130
1,1,2-Trichloroethane ug/L 17.320 86 70-130
1,1-Dichloroethane ug/L 17.220 86 70-130
1,1-Dichloroethene ug/L 16.220 81 69-131
1,2,3-Trichloropropane ug/L 18.520 92 70-130
1,2-Dibromo-3-chloropropane ug/L 18.920 95 70-130
1,2-Dibromoethane (EDB)ug/L 18.420 92 70-130
1,2-Dichlorobenzene ug/L 19.920 99 70-130
1,2-Dichloroethane ug/L 17.720 89 70-130
1,2-Dichloropropane ug/L 18.520 92 70-130
1,4-Dichlorobenzene ug/L 19.820 99 70-130
2-Butanone (MEK)ug/L 33.9J40 85 67-133
2-Hexanone ug/L 38.4J40 96 70-133
4-Methyl-2-pentanone (MIBK)ug/L 36.3J40 91 70-130
Acetone ug/L 36.0J40 90 67-130
Acrylonitrile ug/L 79.4J100 79 70-130
Benzene ug/L 18.420 92 70-130
Bromochloromethane ug/L 17.520 87 70-130
Bromodichloromethane ug/L 17.520 87 70-130
Bromoform ug/L 17.120 85 70-133
Bromomethane ug/L 13.2 v32066 41-148
Carbon disulfide ug/L 16.2J20 81 70-131
Carbon tetrachloride ug/L 17.920 90 70-130
Chlorobenzene ug/L 19.320 96 70-130
Chloroethane ug/L 14.420 72 41-157
Chloroform ug/L 16.420 82 70-130
Chloromethane ug/L 15.620 78 59-141
cis-1,2-Dichloroethene ug/L 16.920 85 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 31 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4493009LABORATORY CONTROL SAMPLE:
LCSSpike
cis-1,3-Dichloropropene ug/L 17.520 87 70-130
Dibromochloromethane ug/L 18.320 91 70-130
Dibromomethane ug/L 18.520 92 70-130
Ethylbenzene ug/L 19.220 96 70-130
Iodomethane ug/L 30.6 v34076 57-140
Methylene Chloride ug/L 16.520 82 62-130
Styrene ug/L 18.720 93 70-130
Tetrachloroethene ug/L 16.720 84 70-130
Toluene ug/L 18.320 91 70-130
trans-1,2-Dichloroethene ug/L 17.220 86 70-130
trans-1,3-Dichloropropene ug/L 17.920 89 70-130
trans-1,4-Dichloro-2-butene ug/L 13.5J v32068 57-149
Trichloroethene ug/L 18.620 93 70-130
Trichlorofluoromethane ug/L 14.520 73 57-130
Vinyl acetate ug/L 34.1J40 85 70-141
Vinyl chloride ug/L 14.820 74 66-140
Xylene (Total)ug/L 56.160 94 70-130
1,2-Dichloroethane-d4 (S)%94 70-130
4-Bromofluorobenzene (S)%98 70-130
Toluene-d8 (S)%98 70-130
Parameter Units
MS
Result
% Rec
Limits Qualifiers% RecConc.
4493010MATRIX SPIKE SAMPLE:
MSSpike
Result
92743078003
1,1,1,2-Tetrachloroethane ug/L 22.920 114 70-146ND
1,1,1-Trichloroethane ug/L 21.520 107 70-150ND
1,1,2,2-Tetrachloroethane ug/L 22.120 111 66-144ND
1,1,2-Trichloroethane ug/L 20.020 100 70-142ND
1,1-Dichloroethane ug/L 21.720 109 68-150ND
1,1-Dichloroethene ug/L 21.520 107 64-162ND
1,2,3-Trichloropropane ug/L 22.620 113 66-144ND
1,2-Dibromo-3-chloropropane ug/L 20.620 103 62-146ND
1,2-Dibromoethane (EDB)ug/L 22.820 114 70-143ND
1,2-Dichlorobenzene ug/L 22.620 113 70-142ND
1,2-Dichloroethane ug/L 21.820 109 68-145ND
1,2-Dichloropropane ug/L 20.920 104 70-144ND
1,4-Dichlorobenzene ug/L 23.320 116 70-140ND
2-Butanone (MEK)ug/L 40.4J40 101 57-156ND
2-Hexanone ug/L 45.4J40 114 62-153ND
4-Methyl-2-pentanone (MIBK)ug/L 42.9J40 107 65-144ND
Acetone ug/L 40.5J40 101 49-162ND
Acrylonitrile ug/L 92.6J100 93 59-155ND
Benzene ug/L 22.620 113 68-144ND
Bromochloromethane ug/L 20.920 104 70-148ND
Bromodichloromethane ug/L 20.620 103 70-141ND
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 32 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qualifiers% RecConc.
4493010MATRIX SPIKE SAMPLE:
MSSpike
Result
92743078003
Bromoform ug/L 20.220 101 59-144ND
Bromomethane ug/L 13.7 v32068 23-190ND
Carbon disulfide ug/L 22.1J20 111 64-160ND
Carbon tetrachloride ug/L 22.620 113 70-147ND
Chlorobenzene ug/L 23.620 118 70-143ND
Chloroethane ug/L 18.520 93 55-190ND
Chloroform ug/L 19.320 96 67-148ND
Chloromethane ug/L 20.720 103 38-180ND
cis-1,2-Dichloroethene ug/L 20.920 105 67-151ND
cis-1,3-Dichloropropene ug/L 22.320 111 70-142ND
Dibromochloromethane ug/L 22.520 113 68-140ND
Dibromomethane ug/L 22.520 112 70-142ND
Ethylbenzene ug/L 23.520 118 70-145ND
Iodomethane ug/L 38.6 v34097 37-160ND
Methylene Chloride ug/L 20.120 101 54-149ND
Styrene ug/L 22.820 114 70-147ND
Tetrachloroethene ug/L 21.120 106 70-145ND
Toluene ug/L 22.120 110 65-146ND
trans-1,2-Dichloroethene ug/L 20.520 102 69-155ND
trans-1,3-Dichloropropene ug/L 22.420 112 70-142ND
trans-1,4-Dichloro-2-butene ug/L 15.8J v32079 39-149ND
Trichloroethene ug/L 23.220 116 70-152ND
Trichlorofluoromethane ug/L 20.420 102 60-158ND
Vinyl acetate ug/L 41.9J40 105 56-157ND
Vinyl chloride ug/L 20.320 102 51-178ND
Xylene (Total)ug/L 69.460 116 70-146ND
1,2-Dichloroethane-d4 (S)%97 70-130
4-Bromofluorobenzene (S)%100 70-130
Toluene-d8 (S)%99 70-130
Parameter Units
Dup
Result
Max
RPD QualifiersRPDResult
92743078004
4493011SAMPLE DUPLICATE:
1,1,1,2-Tetrachloroethane ug/L ND 30ND
1,1,1-Trichloroethane ug/L ND 30ND
1,1,2,2-Tetrachloroethane ug/L ND 30ND
1,1,2-Trichloroethane ug/L ND 30ND
1,1-Dichloroethane ug/L ND 30ND
1,1-Dichloroethene ug/L ND 30ND
1,2,3-Trichloropropane ug/L ND 30ND
1,2-Dibromo-3-chloropropane ug/L ND 30ND
1,2-Dibromoethane (EDB)ug/L ND 30ND
1,2-Dichlorobenzene ug/L ND 30ND
1,2-Dichloroethane ug/L ND 30ND
1,2-Dichloropropane ug/L ND 30ND
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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[phone]
Page 33 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Dup
Result
Max
RPD QualifiersRPDResult
92743078004
4493011SAMPLE DUPLICATE:
1,4-Dichlorobenzene ug/L ND 30ND
2-Butanone (MEK)ug/L ND 30ND
2-Hexanone ug/L ND 30ND
4-Methyl-2-pentanone (MIBK)ug/L ND 30ND
Acetone ug/L ND 30ND
Acrylonitrile ug/L ND 30ND
Benzene ug/L ND 30ND
Bromochloromethane ug/L ND 30ND
Bromodichloromethane ug/L ND 30ND
Bromoform ug/L ND 30ND
Bromomethane ug/L ND v230ND
Carbon disulfide ug/L ND 30ND
Carbon tetrachloride ug/L ND 30ND
Chlorobenzene ug/L ND 30ND
Chloroethane ug/L ND 30ND
Chloroform ug/L ND 30ND
Chloromethane ug/L ND 30ND
cis-1,2-Dichloroethene ug/L ND 30ND
cis-1,3-Dichloropropene ug/L ND 30ND
Dibromochloromethane ug/L ND 30ND
Dibromomethane ug/L ND 30ND
Ethylbenzene ug/L ND 30ND
Iodomethane ug/L ND v230ND
Methylene Chloride ug/L ND 30ND
Styrene ug/L ND 30ND
Tetrachloroethene ug/L ND 30ND
Toluene ug/L ND 30ND
trans-1,2-Dichloroethene ug/L ND 30ND
trans-1,3-Dichloropropene ug/L ND 30ND
trans-1,4-Dichloro-2-butene ug/L ND v230ND
Trichloroethene ug/L ND 30ND
Trichlorofluoromethane ug/L ND 30ND
Vinyl acetate ug/L ND 30ND
Vinyl chloride ug/L ND 30ND
Xylene (Total)ug/L ND 30ND
1,2-Dichloroethane-d4 (S)%9897
4-Bromofluorobenzene (S)%9799
Toluene-d8 (S)%9997
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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Page 34 of 49
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
869876
EPA 8260D Mod.
EPA 8260D Mod.
8260D MSV SIM
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples: 92743080001, 92743080002, 92743080003, 92743080004, 92743080005, 92743080006
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4483419
Associated Lab Samples:92743080001, 92743080002, 92743080003, 92743080004, 92743080005, 92743080006
Matrix: Water
AnalyzedMDL
1,4-Dioxane (p-Dioxane)ug/L ND 2.0 07/21/24 12:500.86
1,2-Dichloroethane-d4 (S)%92 70-130 07/21/24 12:50
Toluene-d8 (S)%100 70-130 07/21/24 12:50
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4483420LABORATORY CONTROL SAMPLE:
LCSSpike
1,4-Dioxane (p-Dioxane)ug/L 17.820 89 67-130
1,2-Dichloroethane-d4 (S)%91 70-130
Toluene-d8 (S)%99 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4483421MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92743080001
4483422
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,4-Dioxane (p-Dioxane) ug/L 20 87 10-17087 0 3020ND17.4 17.3
1,2-Dichloroethane-d4 (S) %94 70-13095 30
Toluene-d8 (S)%101 70-130103 30
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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Page 35 of 49
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
Analyte was detected in the associated method blank.B
Result confirmed by second analysis.C0
The continuing calibration verification was below the method acceptance limit. The analyte was not detected in the
associated samples and the sensitivity of the instrument was verified with a reporting limit check standard.v2
The continuing calibration verification was below the method acceptance limit. Any detection for the analyte in the
associated samples may have low bias.v3
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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9800 Kincey Ave. Suite 100
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[phone]
Page 36 of 49
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92743080
Montgomery LF/Semi-Annual
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92743080001 8713526201-MW1R
92743080002 8713526201-MW4
92743080004 8713526201-MW3
92743080005 8713526201-MW2
92743080001 870621 8707386201-MW1R EPA 3005A EPA 6020B
92743080002 870621 8707386201-MW4 EPA 3005A EPA 6020B
92743080003 870621 8707386201-DUP EPA 3005A EPA 6020B
92743080004 870621 8707386201-MW3 EPA 3005A EPA 6020B
92743080005 870621 8707386201-MW2 EPA 3005A EPA 6020B
92743080006 870621 8707386201-Field Blank EPA 3005A EPA 6020B
92743080001 873179 8732346201-MW1R EPA 3005A EPA 6020B
92743080001 8720486201-MW1R EPA 8260D
92743080002 8720486201-MW4 EPA 8260D
92743080003 8720486201-DUP EPA 8260D
92743080004 8720486201-MW3 EPA 8260D
92743080005 8720486201-MW2 EPA 8260D
92743080006 8720486201-Field Blank EPA 8260D
92743080007 872048Trip Blank EPA 8260D
92743080001 8698766201-MW1R EPA 8260D Mod.
92743080002 8698766201-MW4 EPA 8260D Mod.
92743080003 8698766201-DUP EPA 8260D Mod.
92743080004 8698766201-MW3 EPA 8260D Mod.
92743080005 8698766201-MW2 EPA 8260D Mod.
92743080006 8698766201-Field Blank EPA 8260D Mod.
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 08/09/2024 04:10 PM
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Project ID:
Location/Site:Mt. Gilead, NC/Montgomery Co LF
Sample Date:
Field Personel:
Instrument IDs:
Weather:
Well ID Date Time
Static
Water
Level
(Feet)
Total Depth
(Feet)CH4 %O2 %CO2 %CO PPM H2S PPM
6201-MW-1R 7/18/2024 1144 40.45 53.46 0.0 20.5 0.2 0 1
6201-MW-2 7/18/2024 1137 11.41 23.83 0.0 20.4 0.3 0 1
6201-MW-3 7/18/2024 1125 10.83 22.58 0.0 20.0 0.6 0 1
6201-MW-4 7/18/2024 1132 6.00 22.04 0.0 20.5 0.0 0 1 Broken Lid Hinge
Pace Carolinas Water Level and Methane Level Form Page _1_ of _1_
6201 Montgomery LF/Semi-Annual
7/18/2024
MER JCM JFA - Pace
Heron Dipper-T 1994/ GEM 5000 #G506508
Sunny 80's
Comments
Labeled as GW-5
No Lock