WS-2865_7196_CA_RMR_20201105

SEMI-ANNUAL GROUNDWATER
MONITORING REPORT
Site:
FORMER CS CONCRETE
3415 SANDY RIDGE ROAD
COLFAX, NORTH CAROLINA
Submitted To:
MR. BO SIGURD
CEMEX CONSTRUCTION MATERIALS, INC.
3820 NORTHDALE BLVD., SUITE 100 B
TAMPA, FLORIDA 33624
Prepared By:
ENVIROTRAC LTD.
7343 WEST FRIENDLY AVENUE, SUITE J
GREENSBORO, NORTH CAROLINA 27410
[phone]
NOVEMBER 2020
Received: 11/5/2020

7343 W. Friendly Avenue, Suite J, Greensboro, NC 27410 [phone] Fax: [phone] www.envirotrac.com
Offices in CT, FL, GA, MA, NC, NH, NJ, NY, OH, PA, VA, WV
November 5, 2020 Mr. Bo Sigurd CEMEX Construction Materials, Inc.
3820 Northdale Blvd., Suite 100 B Tampa, Florida 33624

Reference: Semi-Annual Groundwater Monitoring Report
Former CS Concrete
Colfax, North Carolina
Incident No. 7196

Dear Mr. Sigurd: EnviroTrac Ltd. is pleased to provide the enclosed report detailing the groundwater sampling event completed on October 27, 2020 as required by the North Carolina Department of Environmental Quality. A copy of this report has been forwarded to Mr. Gene Mao of the Guilford County Environmental Health Department. Should you have any questions, or require additional information, please feel free to contact the undersigned. Very truly yours,
ENVIROTRAC LTD.

Annamarie Blauser, PG Senior Scientist
Christopher W. Hay, EI, RSM Principal Enclosure cc: Gene Mao, Guilford County Environmental Health Department w/ enclosure

11.990018.01 Page i November 5, 2020
© 2020 EnviroTrac
A Report Prepared for: Mr. Bo Sigurd CEMEX Construction Materials, Inc. 3820 Northdale Blvd., Suite 100 B
Tampa, Florida 33624

SEMI-ANNUAL GROUNDWATER MONITORING REPORT
FORMER CS CONCRETE
COLFAX, NORTH CAROLINA
Prepared by:

Annamarie Blauser, PG Senior Scientist

Reviewed by:

Christopher W. Hay, EI Principal

EnviroTrac Ltd. 7343 W. Friendly Avenue, Suite J Greensboro, North Carolina 27410 Phone: [phone]

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© 2020 EnviroTrac
TABLE OF CONTENTS
1.0 BACKGROUND .............................................................................................................. 1
2.0 SITE AREA RECEPTORS .............................................................................................. 2 2.1 Water Supply Wells............................................................................................... 2 2.2 Public Water Supplies ........................................................................................... 2
2.3 Surface Water ....................................................................................................... 3 2.4 Wellhead Protection Areas.................................................................................... 3 2.5 Deep Aquifers ....................................................................................................... 3
2.6 Subsurface Structures .......................................................................................... 3 2.7 Land Use .............................................................................................................. 3
3.0 SUMMARY OF REMEDIATION ACTIVITIES ................................................................. 4
4.0 METHODS ..................................................................................................................... 4 4.1 Oxygen Diffusion Technology ............................................................................... 4 4.2 Monitoring Well Sampling ..................................................................................... 5
4.3 Field Measurements ............................................................................................. 6
5.0 RESULTS ....................................................................................................................... 6 5.1 Groundwater Flow Direction .................................................................................. 6 5.2 Monitoring Well Sampling ..................................................................................... 6 5.3 Plume Geometry ................................................................................................... 7
6.0 CONCLUSIONS AND RECOMMENDATIONS ............................................................... 7
7.0 LIMITATIONS ................................................................................................................. 8

TABLES
1 Water Supply Wells Within 1,500 Feet of Release
2 Surrounding Property Owners
3 Summary of Monitoring Well and Groundwater Elevation Data
4 Aquifer Characteristics Field Analysis Summary
5 Groundwater Sample Results
6 Historical Groundwater Sample Results

FIGURES
1 Site Location Map
2 Site Map
3 Receptor Map
4 Potentiometric Surface Map (October 27, 2020)
5 Benzene Isoconcentration Map
6 Toluene Isoconcentration Map
7 Total Xylenes Isoconcentration Map
8 Naphthalene Isoconcentration Map
9 1,2,4-Trimethylbenzene Isoconcentration Map

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APPENDICES
A Laboratory Report and Chain-of-Custody
B Time versus Concentration Graphs

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1.0 BACKGROUND

The Former CS Concrete site is located in Colfax, North Carolina at the intersection of West
Market Street and Sandy Ridge Road (Figure 1). Carolina Steel Corporation engaged in the
manufacture of pre-fabricated concrete products at this location from 1961 to 1993. In January
1999, the property was sold to Triad Masonry and Materials (RMC Carolina Materials). RMC
Carolina Materials manufactured concrete products at the site until January 2006 when CEMEX
Construction Materials, Inc. (CEMEX) purchased the property. CEMEX (the responsible party
for the release) manufactured concrete products at the site until April 2013 when Oldcastle APG
South, Inc. (Oldcastle) purchased the property. Oldcastle is presently manufacturing and selling
concrete products at the site.

Past operations at the facility required the storage of No. 2 fuel oil in two underground storage
tanks (USTs) used for heaters in the manufacturing process. Five additional USTs were used at
the site to store gasoline and diesel fuel for on-site vehicles. In March 1992, Southern Pump
and Tank Company (SPATCO) excavated and removed seven USTs from the site. Laboratory
results of soil samples collected beneath an 8,000-gallon diesel UST and a 3,000-gallon
gasoline UST indicated that a release had occurred from each. Subsequent groundwater
monitoring well installation, sampling, and laboratory analysis indicated that the groundwater at
the site had been impacted.

A Comprehensive Site Assessment (CSA) report dated February 12, 1992, was prepared by
SPATCO Environmental Services. Due to the proximity of groundwater supply wells within
1,500 feet of the site, the incident was considered high risk and warranted the installation and
operation of a groundwater remediation system.

A Corrective Action Plan (CAP) was prepared and submitted by Engineering Tectonics, P.A. in
August 1994. At the request of the North Carolina Department of Environmental Quality
(NCDEQ), in March and August 1996, Engineering Tectonics, P.A. prepared and submitted
Addenda to the original CSA and CAP.

In September 1998, a groundwater treatment system was brought online. The system consisted
of six groundwater extraction wells (RW-1 through RW-6). The groundwater was pumped to an
on-site treatment system consisting of a shallow tray air stripper, two sets of two 200-pound

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carbon drums, associated transfer pumps, sediment filters, and plumbing. In 2004 a calcium
(CaCO3) tank was added to maintain the pH of the system’s effluent. The location of the wells
and treatment system are shown in Figure 2. The treated water was discharged to a storm
water collection system, which drained into a nearby stream under an Individual NPDES Permit.
The remediation system was shut down on February 13, 2007.

On December 29, 2008, monitoring well MW-16 was installed approximately 130 feet east of
monitoring well MW-13. Six monitoring wells were sampled on December 30, 2008. The results
of the December 2008 sampling event indicated that the contaminant plume had decreased in
size and downgradient receptors did not appear to be at risk of contamination. In a letter dated
February 16, 2009, NCDEQ concurred with leaving the remediation system turned off while
continuing semi-annual groundwater monitoring events. Following the review of the March 14,
2012 monitoring report, the Guilford County Department of Environmental Health recommended
a mobile multi-phase extraction (MMPE). MMPE events followed by groundwater monitoring
events were completed in November 2012, April 2015, September 2015, and April 2016.
Oxygen diffusers were installed at the site in existing monitoring wells MW-12 and MW-13 on
August 17, 2016. This report summarizes the results of the April 2020 groundwater monitoring
event performed by EnviroTrac.

2.0 SITE AREA RECEPTORS

2.1 Water Supply Wells

Public water is available to the general site area; however, private water supply wells provide
potable water to many of the surrounding properties. The site is connected to public water and
does not utilize a water supply well. In the 1994 CAP, ten water supply wells were identified
within 1,500 feet of the site. EnviroTrac performed a visual survey update in June 2015 and
located 13 water supply wells within 1,500 feet of the source area of the release. The water
supply well information is summarized in Table 1 and the locations are shown in Figure 3.

2.2 Public Water Supplies

The site is located within Greensboro city limits. The City of Greensboro depends upon three
surface water sources to supply public water: Lake Townsend, Lake Brandt, and Lake Higgins.
These lakes are located in northern Guilford County with the nearest being Lake Higgins more

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than 6 miles northeast of the source area of the release. Based on the locations of fire
hydrants, the nearest water main line is buried beneath West Market Street, approximately 300
feet north of the release.

2.3 Surface Water

Based on the USGS Topographic Map (Figure 1), there is a pond approximately 800 feet north
of the source area of the release. Headwaters for the East Fork Deep River are approximately
1,000 feet southeast of the release. An unnamed tributary to West Fork Deep River appears to
start approximately 1,000 feet southwest of the release; however, based on Guilford County GIS
(Figure 3), the tributary starts 1,500 feet southwest of the release. According to the NCDEQ
Division of Water Resources, both East and West Fork Deep Rivers are classified as “WS-IV”.

2.4 Wellhead Protection Areas

According to NCDEQ Division of Water Resources website, there are no wellhead protection
areas within 1,500 feet of the source area.

2.5 Deep Aquifers

According to the Geologic Map of North Carolina published in 1985, the site is located within the
Carolina Slate Belt of the Piedmont Physiographic Province and is not part of the Coastal Plain
Physiographic Region; therefore, the requirements for deep aquifers do not apply.

2.6 Subsurface Structures

Water and sanitary sewer lines are buried under West Market Street and Sandy Ridge Road.
The underground utilities are not expected to be a preferential migration pathway or a potential
source of vapor accumulation.

2.7 Land Use

The site is zoned heavy industrial (HI) and is currently owned and operated by Oldcastle APG
South, Inc. The area within 1,500 feet of the source area of the release consists of heavy and
light industrial, agricultural, and residential land use (Figure 3). The adjacent properties are
summarized in Table 2 and identified on Figure 3.

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3.0 SUMMARY OF REMEDIATION ACTIVITIES

The following activities occurred since the last semi-annual report:
05/15/2020 EnviroTrac personnel traveled to the site to perform monthly maintenance of
oxygen diffusers and measure groundwater parameters.
06/26/2020 EnviroTrac personnel traveled to the site to perform monthly maintenance of
oxygen diffusers and measure groundwater parameters.
07/13/2020 EnviroTrac personnel traveled to the site to perform monthly maintenance of
oxygen diffusers and measure groundwater parameters.
08/27/2020 EnviroTrac personnel traveled to the site to perform monthly maintenance of
oxygen diffusers and measure groundwater parameters.
09/28/2020 EnviroTrac personnel traveled to the site to perform monthly maintenance of
oxygen diffusers and measure groundwater parameters.
10/7/2020 Submit Preapproval Task Authorization Form to NCDEQ for monthly
maintenance of oxygen diffusers in monitoring wells MW-12 and MW-13
(January through June 2021).
10/20/2020 Preapproval Task Authorization approved by NCDEQ.
10/27/2020 EnviroTrac personnel traveled to the site to sample five monitoring wells (MW-1,
MW-7, MW-12, MW-13, and MW-14) and perform monthly maintenance of the
oxygen diffusers. Each groundwater sample was analyzed by Standard Method
6200B. Oxygen cylinders were replaced in MW-12 and MW-13.

4.0 METHODS

4.1 Oxygen Diffusion Technology

The oxygen diffusers were installed at the site in existing monitoring wells MW-12 and MW-13
on August 17, 2016. The oxygen diffusers consist of silicone tubing wrapped around
approximately five feet of 0.75-inch diameter PVC pipe. Oxygen is supplied from compressed
gas cylinders with a regulator and gauge connected to the oxygen diffusers by Parflex tubing
and a support cable.

The oxygen injection system provides dissolved oxygen to the treatment wells, typically at a
concentration of 40 to 200 parts per million (ppm) depending on the immersion depth of the unit

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in groundwater. The dissolved oxygen concentration achieved in the injection wells depend on
the height of the water column in the well. Each atmosphere of pressure allows for a maximum
of approximately 41 ppm of dissolved oxygen. The estimated dissolved oxygen concentration in
the wells is from 45 to 57 ppm. The concentrations are estimated based on the approximate
pressure at the installation depth of the oxygen diffusers in the injection wells. The calculation is
made with the assumption that 41 ppm of oxygen is dissolved in the groundwater per
atmosphere of pressure.

Oxygen is infused into the treatment wells from the diffusers at a typical rate of 15 standard
cubic centimeters per minute or approximately 0.8 cubic feet per day. The oxygen consumption
in the injection wells is tracked to estimate the remaining service life of the oxygen cylinder.

The oxygen delivery system produces a convection current in the wells to distribute dissolved
oxygen throughout the screened interval. A curtain of oxygen rich water disperses around the
wells into the adjacent groundwater forming a treatment zone allowing enhanced bioremediation
to degrade the target contaminants.

4.2 Monitoring Well Sampling

Monitoring wells MW-1, MW-7, MW-12, MW-13, and MW-14 were sampled on October 27,
2020. Monitoring well locations are shown on Figure 2. Wells were opened and allowed to
equilibrate to atmospheric conditions prior to obtaining static water levels. The depth to water in
the wells was measured from a surveyed point on the top of each well casing using an
electronic water level meter. After obtaining static water levels, each well was purged of three
well volumes of groundwater or until dry using a new disposable polyethylene bailer and new
nylon cord at each location.

After purging the wells, a sample was collected and placed in laboratory-supplied containers,
labeled, and maintained on ice until delivered to the laboratory. A chain-of-custody document
was utilized throughout the collection and transportation process. The samples were sent to
Pace Analytical Laboratories, Inc. in Huntersville, North Carolina to be analyzed for VOCs using
Standard Method 6200B.

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4.3 Field Measurements

The water level in each well was measured using an electronic water level meter accurate to
0.01 feet. The groundwater treatment system has not been in operation since 2007. Therefore,
the water level measured in each monitoring well reflects static groundwater conditions. The
aquifer characteristics: temperature, conductance, pH, dissolved oxygen, and oxidation-
reduction potential are measured in MW-12 and MW-13 during monthly maintenance of the
oxygen diffusers and in each of the wells sampled during semi-annual monitoring events.

5.0 RESULTS

5.1 Groundwater Flow Direction

The depth to the water table measured October 27, 2020 varied between 14.16 and 23.54 feet
below top of casing. Groundwater elevations were, on average, 0.49 feet higher than the
previous sampling event. Groundwater flow is generally to the southwest under a gradient of
0.007 ft/ft as measured between MW-15 and MW-16. The groundwater elevation data are
summarized in Table 3. The groundwater measurements collected on October 27, 2020 were
used to prepare a groundwater potentiometric surface map shown on Figure 4.

5.2 Monitoring Well Sampling

The aquifer characteristics are summarized in Table 4. Dissolved oxygen and oxidation
reduction potential are generally higher than background levels in oxygen injection wells. The
oxygen supply in MW-12 was depleted between May, June and July 2019, and, and the oxygen
supply in MW-13 was depleted between the May, June, and September 2020 site visits.

Laboratory analysis detected contaminant concentrations above the North Carolina
Administrative Code Subchapter 2L Groundwater Standards for Class GA Groundwater (2L
Standards) in monitoring wells MW-7, and MW-13 with the highest concentrations in monitoring
well MW-13. The following contaminants were detected at concentrations exceeding their 2L
Standard: benzene, toluene, total xylenes, naphthalene, and 1,2,4-trimethylbenzene. No
contaminant concentrations were detected above the laboratory detection limit in MW-1, MW-
12, and MW-14. The laboratory results from the October 27, 2020 sampling event are
summarized in Table 5. The laboratory report is included as Appendix A. Historical laboratory

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results of the samples collected from monitoring wells MW-1, MW-7, MW-12, MW-13, and MW-
14 are summarized in Table 6.

To track the contaminant concentrations over time, graphs were constructed with time versus
concentration of benzene, toluene, ethylbenzene, total xylenes, IPE, and naphthalene in MW-1,
MW-7, MW-12, MW-13, and MW-14 (Appendix B). Based on a review of the graphs,
contaminant concentrations in monitoring well MW-1 have generally decreased and are below
quantitation limits since June 2014. The contaminant concentrations in MW-7 rebounded
between May 2015 and October 2016 but have since decreased with exception of total xylene
increased during the last two sampling events. In MW-12, the contaminant concentrations
rebounded after the MMPE events but have since decreased below laboratory quantitation
limits. In MW-13, the contaminant concentrations rebounded after the MMPE events but
generally have a decreasing trend. Contaminant concentrations in monitoring well MW-14 have
a decreasing trend since the MMPE events. Isoconcentration maps showing the extent of 2L
exceedances are included for benzene (Figure 5), toluene (Figure 6), total xylenes (Figure 7),
naphthalene (Figure 8), and 1,2,4-trimethylbenzene (Figure 9).

5.3 Plume Geometry

Based on the October 27, 2020 groundwater analytical results, the contaminant plume is in the
general area of the former gasoline UST. The long axis of the plume is oriented in a general
north-south direction. The benzene plume measures approximately 105 feet long and 25 feet
wide. The areal extent of the plume has decreased.

6.0 CONCLUSIONS AND RECOMMENDATIONS

The following conclusions are drawn from the October 27, 2020 sampling event:
▪ Contaminant concentrations in monitoring wells MW-12 and MW-13 have
decreasing trends since installation of the oxygen diffusers in August 2016.
▪ No contaminant concentrations were detected above the laboratory detection
limits in MW-1, MW-12, and MW-14.
▪ The highest contaminant concentrations were detected in MW-13, which is
located in the vicinity of the former gasoline UST location. Free product was
previously measured in this well in September 2001 and March 2002, but was
not observed during this sampling event.

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▪ The sampling results demonstrate that the impacted groundwater plume
measures approximately 105 feet long by 25 feet wide oriented in a general north
to south direction.
Based upon the data collected to date, EnviroTrac recommends:
▪ Perform maintenance on the oxygen diffusers and measure aquifer
characteristics (temperature, conductivity, pH, dissolved oxygen, and ORP)
monthly.
▪ Collect groundwater samples from monitoring wells MW-1, MW-7, MW-12, MW-
13, and MW-14 for VOCs using Standard Method 6200B on a semi-annual
basis.

7.0 LIMITATIONS

EnviroTrac’s work has been performed in a manner consistent with that level of care and skill
ordinarily exercised by other members of EnviroTrac’s profession practicing in the same locality,
under similar conditions and at the date the services were provided. EnviroTrac’s conclusions,
opinions and recommendations are based on a limited number of observations and data. It is
possible that conditions could vary between or beyond the data evaluated. EnviroTrac makes no
guarantee or warranty, express or implied, regarding the services, communication (oral or
written), report, opinion, or instrument of service provided.

EnviroTrac offers various levels of investigative and engineering services to suit the varying
needs of different clients. It should be recognized that definition and evaluation of geologic and
environmental conditions are a difficult and inexact science. Judgments leading to conclusions
and recommendations are generally made with incomplete knowledge of the subsurface
conditions present due to the limitations of data from field studies. Although risk can never be
eliminated, more-detailed and extensive studies yield more information, which may help
understand and manage the level of risk. Since detailed study and analysis involves greater
expense, our clients participate in determining levels of service that provide adequate
information for their purposes at acceptable levels of risk. More extensive studies, including
subsurface studies or field tests, should be performed to reduce uncertainties. Acceptance of
this report will indicate that CEMEX Construction Materials, Inc. has reviewed the document and
determined that it does not need or want a greater level of service than provided.

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The information included on graphic representations in this report has been compiled from a
variety of sources and is subject to change without notice. EnviroTrac makes no representations
or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use
of such information. These documents are not intended for use as a land survey product, nor
are they designed or intended as a construction design document. The use of the information
contained on these graphic representations is at the sole risk of the party using the information.
TABLES
________________________________________________________

TABLE 1: WATER SUPPLY WELLS WITHIN 1,500 FEET OF RELEASE
Map ID
No.Property Owner and Address
Well
Construction
Details
Appproximate
Distance from
Release
Gradient (Up,
Down, Cross)
W-1 MELBA ATKINS, WANDA GRAY, HERBERT
ATKINS
Unknown Cross
9032 WEST MARKET STREET
W-2 RUDY AND SHELIA NEEDHAM Unknown Cross
9018 WEST MARKET STREET
W-3 LARRY & MARIE PARRISH Unknown Cross
9014 WEST MARKET STREET
W-4 CLARENCE W. BROWN Unknown Up
8936 WEST MARKET STREET
W-5 MARY Q AND RICHARD LEE WELCH Unknown Up
8920 WEST MARKET STREET
W-6 HENLY DISTRIBUTION CORP. TRIAD DRIVE LLC,
LITTLE SANTEE-SANDY RIDGE, LLC
Unknown Up
3410 SANDY RIDGE ROAD
W-7 HENLY DISTRIBUTION CORP. TRIAD DRIVE LLC,
LITTLE SANTEE-SANDY RIDGE, LLC
Unknown Up
3408 SANDY RIDGE ROAD
W-8 REZ PATTERSON Unknown Up
3404 SANDY RIDGE ROAD
W-9 BETTY BYRD LIVING TRUST Unknown Cross
3316 SANDY RIDGE ROAD
W-10 ERMA LEE LONG Unknown Cross
8507 CIDER ROAD
W-11 ANDY AND AMANDA MCKOIN Unknown Cross
8515 CIDER ROAD
W-12 GILES CLONINGER Unknown Cross
8517 CIDER ROAD
W-13 CAREY KISER LIVING TRUST Unknown Cross
8534 CIDER ROAD
NOTE:
See Figure 3 for water supply well locations.
1,340 feet
Southwest
770 feet
Southwest
550 feet
East
680 feet
Southeast
920 feet
Southeast
730 feet
South
750 feet
Southwest
1,100 feet
Northeast
1,500 feet
Northeast
580 feetEast
1,160 feetNorthwest
710 feet
Northwest
560 feetNorth
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TABLE 2: SURROUNDING PROPERTY OWNERS
Map ID
No.PIN Property Owner Property Address
SITE 7805572020 OLDCASTLE APG SOUTH INC 3415 SANDY RIDGE RD
1 7805573478 SANDY RIDGE ASSOC LLC 9001 9005 W MARKET ST
2 7805670561 EASTER, S LOWELL 8931 W MARKET ST
3 7805671185 HENLEY DISTRIBUTION CORPORATION ; TCP
TRIAD DRIVE LLC ; LITTLE SANTEE-SANDY RIDGE
LLC
3416 SANDY RIDGE RD
4 7805660895 HENLEY DISTRIBUTION CORPORATION ; TCP
TRIAD DRIVE LLC ; LITTLE SANTEE-SANDY RIDGE
LLC
3414 SANDY RIDGE RD
5 7805578187 HENLEY DISTRIBUTION CORPORATION ; TCP
TRIAD DRIVE LLC ; LITTLE SANTEE-SANDY RIDGE
LLC
3410 SANDY RIDGE RD
6 7805578086 HENLEY DISTRIBUTION CORPORATION ; TCP
TRIAD DRIVE LLC ; LITTLE SANTEE-SANDY RIDGE
LLC
3408 SANDY RIDGE RD
7 7805568975 MCGEE, S JANE 3406 SANDY RIDGE RD
8 7805568874 PATTERSON, REZ D 3404 SANDY RIDGE RD
9 7805568763 MCGEE, SANDRA JANE ; MCGEE, ROBERT
WAYNE ; MCGEE, LISA MABE
3402 SANDY RIDGE RD
10 7805568663 HENLEY DISTRIBUTION CORPORATION ; TCP
TRIAD DRIVE LLC ; LITTLE SANTEE-SANDY RIDGE
LLC
3400 SANDY RIDGE RD
11 7805660440 BETTY N BYRD LIVING TRUST ; BYRD, BETTY N
TR
3316 SANDY RIDGE RD
12 7805566458 QUICK, JAMES A ; QUICK, KAREN C 3319 SANDY RIDGE RD
13 7805565443 SMITH, FRANK THOMAS; SMITH, LYNN P 8503 CIDER RD
14 7805563364 LONG, ERMALEE D 8507 CIDER RD
15 7805561395 DODSON, SHEILA F 8513 CIDER RD
16 7805560336 MCKOIN, ANDY D ; MCKOIN, AMANDA P 8515 CIDER RD
17 7805468337 CLONINGER, GILES L III 8517 CIDER RD
18 7805465442 CAROLINA STEEL GROUP LLC 8500 8532 CIDER RD
19 7805478109 CAROLINA STEEL GROUP LLC 9035 NEAR W MARKET ST
NOTE:
See Figure 3 for property locations.
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© 2020 EnviroTrac November 2020
TABLE 3: SUMMARY OF MONITORING WELL AND GROUNDWATER ELEVATION DATASAMPLE IDMW-1 MW-2 MW-7 MW-9 MW-12 MW-13 MW-14 MW-15 MW-16Top of Casing100.10 100.00 101.19 100.57 101.22 101.37 100.88 100.82 101.68Top of Screen83.60 85.00 86.19 -104.43 86.22 89.37 85.38 84.82 86.68Bottom of Screen68.60 70.00 71.19 -119.43 71.22 74.37 70.38 69.82 71.68DateWell depth131.5 30 30 220 30 27 30.5 31 30Depth22.23 NM 21.52 30.36 26.01 19.24 21.83 dry-Elevation77.37 - 79.67 70.21 75.21 82.13 78.55 --Depth20.74 NM 22.42 30.98 22.31 FP 21.49 21.17 -Elevation78.86 - 78.77 69.59 78.91 - 78.89 78.65 -Depth19.72 NM 21.35 30.79 21.30 21.40 20.45 19.82 -Elevation79.88 - 79.84 69.78 79.92 79.97 79.93 80.00 -Depth16.67 NM 17.94 NM 18.19 18.31 NM NM-Elevation82.93 - 83.25 - 83.03 83.06 ---Depth19.50 NM 21.18 NM 21.05 21.15 20.23 19.87 -Elevation80.10 - 80.01 - 80.17 80.22 80.15 79.95 -Depth18.84 NM NM NM 20.43 20.51 19.65 19.05 -Elevation80.76 --- 80.79 80.86 80.73 80.77 -Depth20.02 NM NM NM 21.68 21.75 20.85 20.32 21.56Elevation79.58 --- 79.54 79.62 79.53 79.50 80.12Depth18.59 NM 20.42 NM 20.22 20.25 19.44 NM NMElevation81.01 - 80.77 - 81.00 81.12 80.94 --Depth18.51 19.30 20.29 NM 20.12 20.15 19.34 18.70 20.15Elevation81.09 80.70 80.90 - 81.10 81.22 81.04 81.12 81.53Depth16.84 17.56 18.71 NM 18.44 18.49 17.63 NM 18.25Elevation82.76 82.44 82.48 - 82.78 82.88 82.75 - 83.43Depth17.81 18.33 19.38 NM 19.40 19.48 18.63 NM 19.67Elevation81.79 81.67 81.81 - 81.82 81.89 81.75 - 82.01Depth17.29 17.99 19.24 NM 18.86 18.95 18.09 NM 18.71Elevation82.31 82.01 81.95 - 82.36 82.42 82.29 - 82.97Depth17.64 18.49 19.33 18.54 19.41 19.46 18.60 NM 19.02Elevation81.96 81.51 81.86 82.03 81.81 81.91 81.78 - 82.6612/30/0806/26/0901/06/1002/10/1206/30/1101/21/1107/08/10ELEVATIONS02/10/0303/04/0412/07/0706/03/0809/01/0103/02/0211.990018.01© 2020 EnviroTrac1 of 3November 2020
TABLE 3: SUMMARY OF MONITORING WELL AND GROUNDWATER ELEVATION DATASAMPLE IDMW-1 MW-2 MW-7 MW-9 MW-12 MW-13 MW-14 MW-15 MW-16Top of Casing100.10 100.00 101.19 100.57 101.22 101.37 100.88 100.82 101.68Top of Screen83.60 85.00 86.19 -104.43 86.22 89.37 85.38 84.82 86.68Bottom of Screen68.60 70.00 71.19 -119.43 71.22 74.37 70.38 69.82 71.68DateWell depth131.5 30 30 220 30 27 30.5 31 30ELEVATIONSDepth18.38 18.90 19.75 NM 19.75 19.93 19.08 18.50 19.20Elevation81.22 81.10 81.44 - 81.47 81.44 81.30 81.32 82.48Depth16.40 16.97 18.43 NM 18.01 18.06 17.23 NM 18.06Elevation83.20 83.03 82.76 - 83.21 83.31 83.15 - 83.62Depth17.15 17.41 19.53 NM 18.73 18.75 17.88 NM 18.08Elevation82.45 82.59 81.66 - 82.49 82.62 82.50 - 83.60Depth15.68 16.43 17.62 NM 17.28 17.28 16.52 NM 17.75Elevation83.92 83.57 83.57 - 83.94 84.09 83.86 - 83.93Depth 16.97 18.33 18.61 27.10 18.61 18.74 17.74 17.21 18.33Elevation 82.63 81.67 82.58 73.47 82.61 82.63 82.64 82.61 83.35Depth 18.06 18.90 19.93 28.38 19.65 19.79 18.70 18.49 19.28Elevation 81.54 81.10 81.26 72.19 81.57 81.58 81.68 81.33 82.40Depth 18.16 16.68 18.07 25.93 17.80 17.92 16.95 17.60 18.07Elevation 81.44 83.32 83.12 74.64 83.42 83.45 83.43 82.22 83.61Depth 16.57 16.92 18.36 26.71 18.15 18.27 17.29 17.20 17.96Elevation 83.03 83.08 82.83 73.86 83.07 83.10 83.09 82.62 83.72Depth 18.19 18.29 19.22 27.32 19.29 19.47 19.00 19.00 18.62Elevation 81.91 81.71 81.97 73.25 81.93 81.90 81.88 81.82 83.06Depth 18.15 18.15 19.40 27.84 19.31 19.45 18.96 19.13 18.73Elevation 81.95 81.85 81.79 72.73 81.91 81.92 81.92 81.69 82.95Depth 18.5 18.38 19.64 28.16 19.65 19.78 19.33 19.35 19.33Elevation 81.60 81.62 81.55 72.41 81.57 81.59 81.55 81.47 82.35Depth 18.02 18.24 19.22 27.59 19.26 19.53 18.90 18.85 19.39Elevation 82.08 81.76 81.97 72.98 81.96 81.84 81.98 81.97 82.2904/20/1704/14/1610/13/1610/07/1510/12/1704/12/1810/18/1805/06/1511/29/1206/04/1412/17/1308/29/1311.990018.01© 2020 EnviroTrac2 of 3November 2020
TABLE 3: SUMMARY OF MONITORING WELL AND GROUNDWATER ELEVATION DATASAMPLE IDMW-1 MW-2 MW-7 MW-9 MW-12 MW-13 MW-14 MW-15 MW-16Top of Casing100.10 100.00 101.19 100.57 101.22 101.37 100.88 100.82 101.68Top of Screen83.60 85.00 86.19 -104.43 86.22 89.37 85.38 84.82 86.68Bottom of Screen68.60 70.00 71.19 -119.43 71.22 74.37 70.38 69.82 71.68DateWell depth131.5 30 30 220 30 27 30.5 31 30ELEVATIONSDepth 15.03 15.24 16.10 24.20 16.19 16.19 15.86 15.73 14.3Elevation 85.07 84.76 85.09 76.37 85.03 85.18 85.02 85.09 87.38Depth 15.80 15.74 16.78 25.13 16.92 17.05 16.62 16.91 16.45Elevation 84.30 84.26 84.41 75.44 84.30 84.32 84.26 83.91 85.23Depth 15.80 14.26 15.95 23.62 15.46 15.45 15.15 15.89 15.32Elevation 84.30 85.74 85.24 76.95 85.76 85.92 85.73 84.93 86.36Depth 14.16 14.22 15.60 23.54 15.29 15.28 14.90 15.14 14.5Elevation 85.94 85.78 85.59 77.03 85.93 86.09 85.98 85.68 87.18NOTES:1Depth of well measured from land surface (feet)FP = Free ProductNM = Not measuredElevations recorded in feet relative to temporary benchmark at MW-2 assigned an arbitrary elevation of 100 feet (resurveyed on 12/14/12). Elevations of MW-1, MW-14, and MW-15 modified prior to April 2017 sampling event corresponding to casing extensions. 04/17/1910/23/1904/21/2010/27/2011.990018.01© 2020 EnviroTrac3 of 3November 2020
Well ID Sample Date
Temperature
( °C )
Conductivity
(mS/cm)pH
Dissolved
Oxygen
(mg/L)
ORP
(mV)
MW-1 10/13/16 19.24 0.082 7.11 0.39 -105.1
04/20/17 19.58 0.102 6.44 0.84 95.0
10/12/17 19.48 0.059 5.91 0.29 123.6
04/12/18 19.26 0.059 6.74 0.44 -353.5
10/18/18 19.45 0.131 5.10 0.39 29.8
04/17/19 19.70 0.042 5.16 0.72 223.1
10/23/19 19.39 0.008 6.28 1.01 138.7
04/21/20 18.39 0.038 -0.50 1.44 467.9
10/27/20 -- 0.031 6.62 0.35 31.1
MW-7 10/13/16 19.08 0.055 4.98 1.14 -153.2
04/20/17 19.54 0.053 4.71 0.65 172.3
10/12/17 19.59 0.055 4.50 0.09 285.6
04/12/18 19.72 0.057 4.64 0.34 -392.5
10/18/18 19.58 0.161 3.62 19.00 260.0
04/17/19 20.40 0.050 4.63 5.98 406.2
10/23/19 19.64 0.053 4.28 2.54 -202.6
04/21/20 18.86 0.060 4.87 1.05 232.2
10/27/20 19.73 0.052 4.87 0.30 230.0
MW-12 09/23/16 19.93 0.035 5.30 49.41 147.2
10/13/16 19.63 0.052 5.71 35.61 -11.3
12/14/16 20.45 0.046 6.24 68.61 143.7
01/19/17 20.29 0.403 7.21 70.70 31.4
03/17/17 19.76 0.139 6.87 37.85 -11.9
04/20/17 19.87 0.090 5.69 33.06 186.6
05/31/17 19.50 0.104 6.28 22.46 -73.8
06/28/17 19.44 0.065 6.53 42.16 111.8
07/19/17 17.41 0.070 6.25 47.18 144.9
08/09/17 19.66 0.068 5.94 45.10 280.1
09/26/17 20.35 0.050 5.20 2.83 145.5
10/12/17 20.02 0.066 5.32 13.86 83.7
11/28/17 20.11 0.047 5.88 38.07 195.8
12/14/17 20.18 0.048 6.14 39.21 142.7
02/21/18 20.05 0.036 6.24 24.43 38.5
03/28/18 18.11 0.059 7.25 45.40 96.0
04/12/18 19.48 0.102 7.07 29.47 -242.6
10/18/18 20.08 0.013 4.87 20.23 -43.1
04/17/19 18.90 0.035 6.59 4.03 218.3
05/23/19 19.17 0.038 4.92 40.16 103.1
06/26/19 19.27 0.057 6.26 37.86 95.7
TABLE 4: AQUIFER CHARACTERISTICS FIELD ANALYSIS SUMMARY
11.990018.01
© 2020 EnviroTrac 1 of 3 November 2020
Well ID Sample Date
Temperature
( °C )
Conductivity
(mS/cm)pH
Dissolved
Oxygen
(mg/L)
ORP
(mV)
TABLE 4: AQUIFER CHARACTERISTICS FIELD ANALYSIS SUMMARY
MW-12 cont. 07/30/19 19.65 0.071 7.66 27.36 -35.2
08/28/19 19.95 0.038 6.84 42.97 398.7
09/30/19 20.66 0.036 6.58 36.27 110.0
10/23/19 20.26 0.172 5.45 26.47 -59.7
11/22/19 20.76 0.044 6.40 45.49 175.0
12/20/19 20.42 0.057 6.19 26.35 195.9
01/16/20 20.46 0.075 4.85 10.90 160.6
02/25/20 15.81 -4.92 10.08 255.9
04/01/20 19.58 0.026 6.28 9.38 207.9
04/21/20 18.94 0.032 1.51 25.08 414.3
05/15/20 19.34 0.026 5.54 26.78 49.2
06/26/20 19.90 1.936 6.48 31.01 156.9
07/13/20 18.63 0.039 6.17 16.11 94.7
08/27/20 20.68 0.030 5.62 20.70 222.9
09/28/20 20.95 0.038 6.11 19.69 201.1
10/27/20 20.10 0.026 6.72 19.85 103.6
MW-13 09/23/16 20.56 1.009 6.49 0.77 78.9
10/13/16 20.06 1.499 6.55 7.68 -70.2
12/14/16 21.10 1.378 6.82 65.78 22.7
01/19/17 20.89 1.176 7.08 157.82 33.9
03/17/17 20.54 1.319 6.93 39.73 -63.7
04/20/17 20.30 1.291 6.55 0.19 -122.7
05/31/17 19.91 1.264 6.87 31.62 -97.5
06/28/17 19.87 1.416 6.58 10.83 0.9
07/19/17 18.00 1.460 6.57 0.78 -153.9
08/09/17 20.30 1.546 6.82 26.99 79.4
09/26/17 21.01 1.294 6.92 29.34 4.2
10/12/17 20.15 1.585 6.67 0.07 -193.7
11/28/17 20.72 1.500 6.72 1.44 82.9
12/14/17 20.78 1.329 6.77 7.38 -36.1
01/23/18 20.61 1.274 7.12 0.90 -117.6
02/21/18 20.73 1.481 6.78 2.30 -26.9
03/28/18 20.02 1.533 7.16 32.50 35.2
04/12/18 20.18 1.761 6.64 0.13 -402.2
10/18/18 20.31 1.668 6.70 0.28 -160.6
04/17/19 19.50 2.220 6.54 2.79 153.0
05/23/19 19.36 2.187 6.55 5.19 98.2
06/26/19 19.68 2.822 6.53 32.22 83.9
07/30/19 20.06 2.685 7.22 24.98 -15.4
08/28/19 20.83 2.862 6.75 27.13 287.2
11.990018.01
© 2020 EnviroTrac 2 of 3 November 2020
Well ID Sample Date
Temperature
( °C )
Conductivity
(mS/cm)pH
Dissolved
Oxygen
(mg/L)
ORP
(mV)
TABLE 4: AQUIFER CHARACTERISTICS FIELD ANALYSIS SUMMARY
MW-13 cont. 09/30/19 20.83 2.862 6.75 27.13 91.3
10/23/19 20.96 2.917 6.49 5.00 -52.2
11/22/19 21.59 3.347 6.77 34.67 156.4
12/20/19 21.64 3.447 6.51 18.06 190.8
01/16/20 21.35 3.096 6.75 1.39 88.1
02/25/20 20.57 3.113 6.50 31.78 199.5
04/01/20 19.83 2.989 6.75 11.89 221.4
04/21/20 19.37 2.837 6.28 3.35 126.0
05/15/20 19.95 2.837 6.03 20.46 49.5
06/26/20 19.40 0.029 6.82 22.23 149.1
07/13/20 19.37 2.344 6.13 27.72 111.0
08/27/20 20.98 2.418 6.34 22.50 171.3
09/28/20 21.47 2.233 6.51 36.06 154.3
10/27/20 20.71 2.068 6.19 1.07 130.7
MW-14 10/13/16 19.47 0.316 4.11 0.71 -121.8
04/20/17 19.88 0.211 4.10 0.24 143.6
10/12/17 19.84 0.231 3.75 0.12 320.5
10/18/18 19.60 0.166 4.57 2.48 165.9
04/17/19 19.90 0.109 5.29 4.34 378.5
10/23/19 19.74 0.294 4.43 2.80 260.1
04/21/20 18.98 0.089 1.96 3.96 368.1
10/27/20 20.28 0.160 5.11 1.06 287.1
NOTES:
oC = degrees Celsius
mS/cm = millisiemens per centimeter
mg/L = milligrams per liter, analogous to parts per million
ORP = oxidation-reduction potential
mV = millivolts
Conductivity is measured for consistency in groundwater sample collection.
11.990018.01
© 2020 EnviroTrac 3 of 3 November 2020
TABLE 5: GROUNDWATER SAMPLE RESULTSSample ID MW-1 MW-7 MW-12 MW-13 MW-14Date Sampled 10/27/10 10/27/10 10/27/10 10/27/10 10/27/10Benzene BQL2.9BQL152BQL1TolueneBQL90.5BQL1,260BQL600EthylbenzeneBQL115BQL286BQL600Total XylenesBQL765BQL2,360BQL500Total BTEXBQL973.4BQL4,058BQL-Isopropyl ether (IPE)BQLBQLBQL19.5BQL70Isopropylbenzene (Cumene)BQL8.1BQL17.2BQL70Methyl-tert butyl ether (MTBE)BQLBQLBQL8.0BQL20NaphthaleneBQL81BQL176BQL6StyreneBQLBQLBQL21.2BQL701,2,4-TrimethylbenzeneBQL215BQL806BQL400NOTES:Results shown in micrograms per liter (μg/L), analogous to parts per billion2L Standards = North Carolina Subchapter 2L Quality Standards for Class GA Groundwater - April 2013Bold indicates concentrations which exceed the 2L StandardsBQL = Below the quantitation limit of the method of analysisEPA Method 6200B2L Standards11.990018.01© 2020 EnviroTracNovember 2020
TABLE 6: HISTORICAL GROUNDWATER SAMPLE RESULTS Sample IDSample DateBenzene Toluene Ethylbenzene Total Xylenes Total BTEXIPENaphthalene2L Standard1600600500-706MW-107/01/981,800344 525922,78876.4BQL09/01/983,710 1,6901019206,4212763.412/01/9817,200 19,7001377,25044,287196BQL03/01/993,010945 1011,0605,11691.81.206/01/994,070 1,9502041,7107,9342084.109/01/994,770 3,4003101,93010,4101,690 28003/01/00NS NS NS NS NS NS NS09/01/008,030 6,5804202,94017,9702,570BQL03/01/013,700 1,4001801,8007,080480BQL09/01/01NS NS NS NS NS NS NS03/02/022,200 1,3001401,1004,740520BQL02/10/037,000 5,0003802,10014,4802,100NA03/04/047,000 4,7005603,31015,5701,900NA12/07/074,850 4,3004542,97612,5801,040NA06/03/085,930 4,0405583,43413,9621,330BQL12/30/084,480 2,9704962,78510,7311,050 99.506/26/094,3702,6903742,4069,840979BQL01/06/104,8802,7804692,61910,7481,140132 J07/08/104,6302,4305022,84610,4081,19011101/21/113,5301,9803632,1488,02193412506/30/113,9001,8403782,3208,4381,050BQL02/10/122,4804231761,1644,243704BQL11/29/1260044553701,06920040 J08/29/13BQLBQLBQLBQLBQLBQLBQL12/17/133.30.167 JBQL1.1 J5.1BQLBQL06/04/14BQLBQLBQLBQLBQLBQLBQL05/06/15BQLBQLBQLBQLBQLBQLBQL10/07/15BQLBQLBQLBQLBQLBQLBQL04/14/16BQLBQLBQLBQLBQLBQLBQL10/13/16BQLBQLBQLBQLBQLBQLBQL04/20/17BQLBQLBQLBQLBQLBQLBQL10/12/17BQLBQLBQLBQLBQLBQLBQL04/12/18BQLBQLBQLBQLBQLBQLBQL10/18/18BQLBQLBQLBQLBQLBQLBQLContinued on next pageVolatile Organic Compounds Analytical Results (μg/L)11.990018.01© 2020 EnviroTrac1 of 6November 2020
TABLE 6: HISTORICAL GROUNDWATER SAMPLE RESULTS Sample IDSample DateBenzene Toluene Ethylbenzene Total Xylenes Total BTEXIPENaphthalene2L Standard1600600500-706Volatile Organic Compounds Analytical Results (μg/L)MW-1 (Continued)04/17/19BQLBQLBQLBQLBQLBQLBQL10/23/19BQLBQLBQLBQLBQLBQLBQL04/21/20BQLBQLBQLBQLBQLBQLBQL10/27/20BQLBQLBQLBQLBQLBQLBQLMW-707/01/98NSNSNSNSNSNSNS09/01/98NSNSNSNSNSNSNS12/01/984003292811,0302,0402016203/01/994786674342,0003,5792517806/01/994101,3105993,0905,4091117709/01/993406203101,4802,750BQL21003/01/002145304943121,550316409/01/00NSNSNSNSNSNSNS03/01/014231322BQLBQL09/01/0154BQL1411017812603/02/02737BQL21029015202/11/0354192901,3101,673BQLNA03/04/0459192108601,148BQLNA12/07/07BQLBQLBQLBQLBQL0.775 JNA06/03/08NSNSNSNSNSNSNS12/30/08NSNSNSNSNSNSNS06/26/091.47BQLBQL4.93 J61.112.501/06/100.965 JBQLBQl1.841 J2.8061.040.749 J07/08/10BQLBQLBQLBQLBQL0.553 J0.444 J01/21/110.691 JBQLBQL3.045 J3.736 J1.554.6306/30/110.378 JBQLBQL2.723.098 J1.21.5402/10/12BQLBQLBQLBQLBQL0.712 JBQL11/29/12BQLBQLBQLBQLBQL1.2 J BQL08/29/131.1BQLBQL5.162.6 J1.712/17/13BQLBQLBQL1.6 J1.61.5 J0.8 J06/04/14BQLBQLBQL5.25.21.2 J1.5 J05/06/153.37.26.264.481.11.511.410/07/151.1111214.41.32.9Continued on next page11.990018.01© 2020 EnviroTrac2 of 6November 2020
TABLE 6: HISTORICAL GROUNDWATER SAMPLE RESULTS Sample IDSample DateBenzene Toluene Ethylbenzene Total Xylenes Total BTEXIPENaphthalene2L Standard1600600500-706Volatile Organic Compounds Analytical Results (μg/L)MW-7 (Continued)04/14/1610.8102 78.8 488679.6 2.351.310/13/164.111.4 11.5 116.7143.71.620.404/20/17 0.96 BQL BQL 9.6 10.6 0.94 3.604/20/17 0.96 BQL BQL 9.6 10.6 0.94 3.610/12/17 0.65 BQL BQL 9.4 10.1 1.1 3.204/12/181.5BQL BQL 20 21.5 0.896.110/18/181.7BQL 1.6 33.8 37.1 0.867.604/17/19 BQL BQL BQL 6.5 6.5 0.53 BQL10/23/191.52.4 3.7 56.8 64.4 0.949.504/21/202.018.0 29.0 234.8 283.8 0.8130.710/27/202.990.5 115.0 765 973.4 BQL81MW-1207/01/986,130 5,600 854 4,53017,1141,280 7909/01/9814,300 18,500 2,800 8,60044,2003,040 57412/01/9810,800 27,900 2,740 13,70055,140 BQL55203/01/9915,000 19,600 1,810 9,95046,3602,880 94406/01/9919,200 31,100 2,650 13,70066,6504,040 56709/01/9912,100 16,800 1,550 8,40038,8504,070 48003/01/0012,200 15,400 2,150 13,10042,8502,450 55009/01/0011,300 20,000 2,080 11,10044,4801,240 57803/01/0120,000 29,000 3,300 20,00072,3002,100BQL09/01/017,800 7,500 1,600 8,90025,800550 35003/02/027,800 6,000 1,500 9,50024,800690 40002/10/035,800 7,200 1,400 7,50021,900 BQL NA03/04/046,000 3,800 1,100 6,40017,300440NA12/07/073,550922486 3,1758,133340NA06/03/084,7504,000996 5,60015,346449 31312/30/083,250 1,200 572 3,3788,400331 93.706/26/093,660 2,490 722 4,34011,212393 58.9 J01/06/104,580 3,200 982 5,63014,392393 14907/08/103,200 7814933,3317,805330 55.5 J01/21/113,190 7585373,4177,902393 81.206/30/112,790 4434112,9706,614416BQLContinued on next page11.990018.01© 2020 EnviroTrac3 of 6November 2020
TABLE 6: HISTORICAL GROUNDWATER SAMPLE RESULTS Sample IDSample DateBenzene Toluene Ethylbenzene Total Xylenes Total BTEXIPENaphthalene2L Standard1600600500-706Volatile Organic Compounds Analytical Results (μg/L)MW-12 (Continued)02/10/122,760 6004573,0326,849391BQL11/29/128,600 15,000 1,300 8,50033,400730 40008/29/132,200 1,400 440 3,2407,280480 70 J12/17/132,700 1,7005204,5009,420500 58 J06/04/142,500 1,4004703,7008,070480 57 J05/06/156,730 13,600 1,360 9,25030,940552 41410/07/158,150 15,600 1,440 7,22032,410771 42204/14/167,170 14,000 1,330 7,82030,320859 35210/13/1610364.2 4.7 83.9255.852.4 3.504/20/1718.519.2 3.6 25.1 66.4 24.9 BQL10/12/17204156 27.0 165.6 552.6120BQL04/12/18 BQL BQL BQL BQL BQL BQL BQL10/18/18 BQL BQL BQL BQL BQL BQL BQL04/17/19 BQL BQL BQL BQL BQL BQL BQL10/23/19BQLBQLBQLBQLBQLBQLBQL04/21/20BQLBQLBQLBQLBQLBQLBQL10/27/20BQLBQLBQLBQLBQLBQLBQLMW-1307/01/98892 4,750 1,770 10,00017,412 BQL71909/01/983,400 12,900 3,100 14,20033,600 BQL1,93012/01/983,140 5,470 2,150 8,03018,790 541,10003/01/9911,400 29,200 3,130 17,50061,23090 1,16006/01/9920,300 36,600 3,700 19,10079,700685 90909/01/997,610 18,700 2,620 13,90042,830 BQL73003/01/0010,900 29,500 3,800 22,60066,800 BQL1,00009/01/009,000 19,600 3,200 17,10048,900172 1,03003/01/0146,000 69,000 5,200 35,000155,200 BQL BQL09/01/01 FP FP FP FP - FP FP03/02/02 FP FP FP FP - FP FP02/03/0325,000 39,000BQL9,80073,800 BQL NA03/04/0417,000 32,000 2,600 15,70067,300 BQL NA12/07/0710,400 31,200 2,460 14,46058,520 294 NA06/03/0814,100 31,400 2,580 14,18062,260 BQL1,340Continued on next page11.990018.01© 2020 EnviroTrac4 of 6November 2020
TABLE 6: HISTORICAL GROUNDWATER SAMPLE RESULTS Sample IDSample DateBenzene Toluene Ethylbenzene Total Xylenes Total BTEXIPENaphthalene2L Standard1600600500-706Volatile Organic Compounds Analytical Results (μg/L)MW-13 (Continued)12/30/0810,200 28,800 1,900 11,41052,310 BQL1,50006/26/0915,000 32,200 2,350 13,95063,5001,290BQL01/06/1013,600 35,800 3,000 17,37069,7702,140 85207/08/108,690 28,800 2,450 14,54054,480262 79301/21/116,880 27,100 2,880 15,67052,530783 1,29006/30/116,580 26,400 2,640 14,48050,100369 JBQL02/10/127,070 27,400 2,570 14,18051,220309 JBQL11/29/1221,000 41,000 4,000 18,90084,9003,000 1,20008/29/1311,000 43,000 3,500 19,00076,500570 1,00012/17/137,200 36,000 3,500 22,00068,700460 J 1,10006/04/147,600 34,000 3,200 18,10062,900430 1,10005/06/1519,400 33,200 2,470 13,30068,3702,760 81910/07/1512,800 29,200 2,080 9,68053,7601,910 75304/14/1614,500 26,500 2,130 11,39054,5201,980 63610/13/166,150 29,800 2,020 12,05050,020771 88304/20/172,980 16,900 1,350 10,99032,220718 68410/12/172,650 19,100 1,520 13,51036,780721 82804/12/182,000 11,900 1,180 9,14024,220469 71310/18/182,230 9,180 798 8,09020,298553 76704/17/191,010 7,7105316,86016,111372 38810/23/195725,5103735,21011,66513126504/21/202312,0703603,2505,91137.123910/27/201521,2602862,3604,05819.5176MW-1412/07/075.22BQL BQL BQL 5.22 BQL BQL06/03/0813.3BQL BQL BQL 13.30 BQL BQL12/30/0812.9BQL BQL 1.03 J 13.93 BQL BQL06/26/099.6BQL BQL 1.37 J 11.00 BQL BQL01/06/1018.10.329 J 0.205 J2.297 J20.93BQLBQL07/08/1010.90.423 JBQL1.58 J12.90BQLBQL01/21/1116.5BQLBQL2.468 J18.968 JBQLBQL06/30/1111.80.351 JBQL2.214.361 JBQLBQL02/10/1223.30.327 JBQL2.125.36BQLBQLContinued on next page11.990018.01© 2020 EnviroTrac5 of 6November 2020
TABLE 6: HISTORICAL GROUNDWATER SAMPLE RESULTS Sample IDSample DateBenzene Toluene Ethylbenzene Total Xylenes Total BTEXIPENaphthalene2L Standard1600600500-706Volatile Organic Compounds Analytical Results (μg/L)MW-14 (Continued)11/29/1216.0BQL BQL 3.8 19.60 BQL BQL08/29/1320.0BQL BQL 3.0 20.98 BQL BQL12/17/1320.0BQL BQL 3.3 23.30 BQL BQL06/04/1420.0BQL BQL 4.0 24.00 BQL BQL05/06/156.3BQL BQL 3.8 10.1 BQL BQL10/07/155.9BQL BQL 3.7 9.6 BQL BQL04/14/167.3BQL BQL 3.7 11.0 BQL BQL10/13/163.3BQL BQL 1.765.1BQL BQL04/20/174.2BQL BQL BQL 4.2 BQL BQL10/12/173.5BQL BQL 1.74 5.2 BQL BQL04/12/184.7BQL BQL 3.4 8.1 BQL BQL10/18/181.9BQL BQL BQL 1.9 BQL BQL04/17/192.0BQL BQL BQL 2.0 BQL BQL10/23/19BQLBQLBQLBQLBQLBQLBQL04/21/20BQLBQLBQLBQLBQLBQLBQL10/27/20BQLBQLBQLBQLBQLBQLBQLNOTES:Results shown in micrograms per liter (μg/L), analogous to parts per billion2L Standards = North Carolina Subchapter 2L Quality Standards for Class GA Groundwater - April 2013Bold indicates concentrations which exceed the 2L StandardsBQL = Below the quantitation limit of the method of analysisIPE - Isopropyl EtherFP - Free productNS - Not SampledNA - Not Analyzed for this compound11.990018.01© 2020 EnviroTrac6 of 6November 2020
FIGURES
________________________________________________________
APPENDIX A
LABORATORY REPORT AND CHAIN-OF-CUSTODY ________________________________________________________

#=CL#
October 30, 2020
LIMS USE: FR - CHRIS HAY
LIMS OBJECT ID: 92502609
92502609
Project:
Pace Project No.:
RE:
Chris Hay
EnviroTrac
7343 W. Friendly Avenue
Suite J
Greensboro, NC 27410
CEMEX
Dear Chris Hay:
Enclosed are the analytical results for sample(s) received by the laboratory on October 28, 2020. 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
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Angela Baioni
[e-mail]
Project Manager
[phone]
Enclosures
cc: Annamarie Blauser, EnviroTrac Ltd
Gail Hay, EnviroTrac, Ltd.
Elizabeth Taccone, Envirotrac - NC
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 29
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92502609
CEMEX
Pace Analytical Services Charlotte
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
Louisiana/NELAP Certification # LA170028
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Certification #: 99006001
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Virginia/VELAP Certification #: 460221
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 29
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92502609
CEMEX
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92502609001 MW-1 SM 6200B 64 PASI-CSAS
92502609002 MW-7 SM 6200B 64 PASI-CSAS
92502609003 MW-12 SM 6200B 64 PASI-CSAS
92502609004 MW-13 SM 6200B 64 PASI-CSAS
92502609005 MW-14 SM 6200B 64 PASI-CSAS
PASI-C = Pace Analytical Services - Charlotte
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 29
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92502609
CEMEX
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92502609002 MW-7
Benzene 2.9 ug/L 10/29/20 15:591.0SM 6200B
Ethylbenzene 115 ug/L 10/29/20 15:591.0SM 6200B
Isopropylbenzene (Cumene)8.1 ug/L 10/29/20 15:591.0SM 6200B
Naphthalene 81.0 ug/L 10/29/20 15:594.0SM 6200B
Toluene 90.5 ug/L 10/29/20 15:591.0SM 6200B
1,2,4-Trimethylbenzene 215 ug/L 10/29/20 15:591.0SM 6200B
m&p-Xylene 539 ug/L 10/29/20 15:592.0SM 6200B
o-Xylene 226 ug/L 10/29/20 15:591.0SM 6200B
92502609004 MW-13
Benzene 152 ug/L 10/29/20 06:326.2SM 6200B
Diisopropyl ether 19.5 ug/L 10/29/20 06:326.2SM 6200B
Ethylbenzene 286 ug/L 10/29/20 06:326.2SM 6200B
Isopropylbenzene (Cumene)17.2 ug/L 10/29/20 06:326.2SM 6200B
Methyl-tert-butyl ether 8.0 ug/L 10/29/20 06:326.2SM 6200B
Naphthalene 176 ug/L 10/29/20 06:3225.0SM 6200B
Styrene 21.2 ug/L 10/29/20 06:326.2SM 6200B
Toluene 1260 ug/L 10/29/20 06:326.2SM 6200B
1,2,4-Trimethylbenzene 806 ug/L 10/29/20 06:326.2SM 6200B
m&p-Xylene 1520 ug/L 10/29/20 06:3212.5SM 6200B
o-Xylene 840 ug/L 10/29/20 06:326.2SM 6200B
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 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-1 Lab ID: 92502609001 Collected: 10/27/20 09:27 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 10/29/20 05:02 71-43-20.50 1
Bromobenzene ND ug/L 10/29/20 05:02 108-86-10.50 1
Bromochloromethane ND ug/L 10/29/20 05:02 74-97-50.50 1
Bromodichloromethane ND ug/L 10/29/20 05:02 75-27-40.50 1
Bromoform ND ug/L 10/29/20 05:02 75-25-20.50 1
Bromomethane ND ug/L 10/29/20 05:02 74-83-95.0 1
n-Butylbenzene ND ug/L 10/29/20 05:02 104-51-80.50 1
sec-Butylbenzene ND ug/L 10/29/20 05:02 135-98-80.50 1
tert-Butylbenzene ND ug/L 10/29/20 05:02 98-06-60.50 1
Carbon tetrachloride ND ug/L 10/29/20 05:02 56-23-50.50 1
Chlorobenzene ND ug/L 10/29/20 05:02 108-90-70.50 1
Chloroethane ND ug/L 10/29/20 05:02 75-00-31.0 1
Chloroform ND ug/L 10/29/20 05:02 67-66-30.50 1
Chloromethane ND ug/L 10/29/20 05:02 74-87-31.0 1
2-Chlorotoluene ND ug/L 10/29/20 05:02 95-49-80.50 1
4-Chlorotoluene ND ug/L 10/29/20 05:02 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 10/29/20 05:02 96-12-81.0 1
Dibromochloromethane ND ug/L 10/29/20 05:02 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 10/29/20 05:02 106-93-40.50 1
Dibromomethane ND ug/L 10/29/20 05:02 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 10/29/20 05:02 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 10/29/20 05:02 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 10/29/20 05:02 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 10/29/20 05:02 75-71-80.50 1
1,1-Dichloroethane ND ug/L 10/29/20 05:02 75-34-30.50 1
1,2-Dichloroethane ND ug/L 10/29/20 05:02 107-06-20.50 1
1,1-Dichloroethene ND ug/L 10/29/20 05:02 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 10/29/20 05:02 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 10/29/20 05:02 156-60-50.50 1
1,2-Dichloropropane ND ug/L 10/29/20 05:02 78-87-50.50 1
1,3-Dichloropropane ND ug/L 10/29/20 05:02 142-28-90.50 1
2,2-Dichloropropane ND ug/L 10/29/20 05:02 594-20-70.50 1
1,1-Dichloropropene ND ug/L 10/29/20 05:02 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 10/29/20 05:02 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 10/29/20 05:02 10061-02-60.50 1
Diisopropyl ether ND ug/L 10/29/20 05:02 108-20-30.50 1
Ethanol ND ug/L 10/29/20 05:02 64-17-5200 1
Ethylbenzene ND ug/L 10/29/20 05:02 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 10/29/20 05:02 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 10/29/20 05:02 98-82-80.50 1
Methylene Chloride ND ug/L 10/29/20 05:02 75-09-22.0 1
Methyl-tert-butyl ether ND ug/L 10/29/20 05:02 1634-04-40.50 1
Naphthalene ND ug/L 10/29/20 05:02 91-20-32.0 1
n-Propylbenzene ND ug/L 10/29/20 05:02 103-65-10.50 1
Styrene ND ug/L 10/29/20 05:02 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 10/29/20 05:02 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-1 Lab ID: 92502609001 Collected: 10/27/20 09:27 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 10/29/20 05:02 79-34-50.50 1
Tetrachloroethene ND ug/L 10/29/20 05:02 127-18-40.50 1
Toluene ND ug/L 10/29/20 05:02 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 10/29/20 05:02 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 10/29/20 05:02 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 10/29/20 05:02 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 10/29/20 05:02 79-00-50.50 1
Trichloroethene ND ug/L 10/29/20 05:02 79-01-60.50 1
Trichlorofluoromethane ND ug/L 10/29/20 05:02 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 10/29/20 05:02 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 10/29/20 05:02 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 10/29/20 05:02 108-67-80.50 1
Vinyl chloride ND ug/L 10/29/20 05:02 75-01-41.0 1
m&p-Xylene ND ug/L 10/29/20 05:02 179601-23-11.0 1
o-Xylene ND ug/L 10/29/20 05:02 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)98 %10/29/20 05:02 17060-07-070-130 1
4-Bromofluorobenzene (S)95 %10/29/20 05:02 460-00-470-130 1
Toluene-d8 (S)100 %10/29/20 05:02 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: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-7 Lab ID: 92502609002 Collected: 10/27/20 11:15 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 2.9 ug/L 10/29/20 15:59 71-43-21.0 2
Bromobenzene ND ug/L 10/29/20 15:59 108-86-11.0 2
Bromochloromethane ND ug/L 10/29/20 15:59 74-97-51.0 2
Bromodichloromethane ND ug/L 10/29/20 15:59 75-27-41.0 2
Bromoform ND ug/L 10/29/20 15:59 75-25-21.0 2
Bromomethane ND ug/L 10/29/20 15:59 74-83-910.0 2
n-Butylbenzene ND ug/L 10/29/20 15:59 104-51-81.0 2
sec-Butylbenzene ND ug/L 10/29/20 15:59 135-98-81.0 2
tert-Butylbenzene ND ug/L 10/29/20 15:59 98-06-61.0 2
Carbon tetrachloride ND ug/L 10/29/20 15:59 56-23-51.0 2
Chlorobenzene ND ug/L 10/29/20 15:59 108-90-71.0 2
Chloroethane ND ug/L 10/29/20 15:59 75-00-32.0 2
Chloroform ND ug/L 10/29/20 15:59 67-66-31.0 2
Chloromethane ND ug/L 10/29/20 15:59 74-87-32.0 2
2-Chlorotoluene ND ug/L 10/29/20 15:59 95-49-81.0 2
4-Chlorotoluene ND ug/L 10/29/20 15:59 106-43-41.0 2
1,2-Dibromo-3-chloropropane ND ug/L 10/29/20 15:59 96-12-82.0 2
Dibromochloromethane ND ug/L 10/29/20 15:59 124-48-11.0 2
1,2-Dibromoethane (EDB)ND ug/L 10/29/20 15:59 106-93-41.0 2
Dibromomethane ND ug/L 10/29/20 15:59 74-95-31.0 2
1,2-Dichlorobenzene ND ug/L 10/29/20 15:59 95-50-11.0 2
1,3-Dichlorobenzene ND ug/L 10/29/20 15:59 541-73-11.0 2
1,4-Dichlorobenzene ND ug/L 10/29/20 15:59 106-46-71.0 2
Dichlorodifluoromethane ND ug/L 10/29/20 15:59 75-71-81.0 2
1,1-Dichloroethane ND ug/L 10/29/20 15:59 75-34-31.0 2
1,2-Dichloroethane ND ug/L 10/29/20 15:59 107-06-21.0 2
1,1-Dichloroethene ND ug/L 10/29/20 15:59 75-35-41.0 2
cis-1,2-Dichloroethene ND ug/L 10/29/20 15:59 156-59-21.0 2
trans-1,2-Dichloroethene ND ug/L 10/29/20 15:59 156-60-51.0 2
1,2-Dichloropropane ND ug/L 10/29/20 15:59 78-87-51.0 2
1,3-Dichloropropane ND ug/L 10/29/20 15:59 142-28-91.0 2
2,2-Dichloropropane ND ug/L 10/29/20 15:59 594-20-71.0 2
1,1-Dichloropropene ND ug/L 10/29/20 15:59 563-58-61.0 2
cis-1,3-Dichloropropene ND ug/L 10/29/20 15:59 10061-01-51.0 2
trans-1,3-Dichloropropene ND ug/L 10/29/20 15:59 10061-02-61.0 2
Diisopropyl ether ND ug/L 10/29/20 15:59 108-20-31.0 2
Ethanol ND ug/L 10/29/20 15:59 64-17-5400 2
Ethylbenzene 115 ug/L 10/29/20 15:59 100-41-41.0 2
Hexachloro-1,3-butadiene ND ug/L 10/29/20 15:59 87-68-34.0 2
Isopropylbenzene (Cumene)8.1 ug/L 10/29/20 15:59 98-82-81.0 2
Methylene Chloride ND ug/L 10/29/20 15:59 75-09-24.0 2
Methyl-tert-butyl ether ND ug/L 10/29/20 15:59 1634-04-41.0 2
Naphthalene 81.0 ug/L 10/29/20 15:59 91-20-34.0 2
n-Propylbenzene ND ug/L 10/29/20 15:59 103-65-11.0 2
Styrene ND ug/L 10/29/20 15:59 100-42-51.0 2
1,1,1,2-Tetrachloroethane ND ug/L 10/29/20 15:59 630-20-61.0 2
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-7 Lab ID: 92502609002 Collected: 10/27/20 11:15 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 10/29/20 15:59 79-34-51.0 2
Tetrachloroethene ND ug/L 10/29/20 15:59 127-18-41.0 2
Toluene 90.5 ug/L 10/29/20 15:59 108-88-31.0 2
1,2,3-Trichlorobenzene ND ug/L 10/29/20 15:59 87-61-64.0 2
1,2,4-Trichlorobenzene ND ug/L 10/29/20 15:59 120-82-14.0 2
1,1,1-Trichloroethane ND ug/L 10/29/20 15:59 71-55-61.0 2
1,1,2-Trichloroethane ND ug/L 10/29/20 15:59 79-00-51.0 2
Trichloroethene ND ug/L 10/29/20 15:59 79-01-61.0 2
Trichlorofluoromethane ND ug/L 10/29/20 15:59 75-69-42.0 2
1,2,3-Trichloropropane ND ug/L 10/29/20 15:59 96-18-41.0 2
1,2,4-Trimethylbenzene 215 ug/L 10/29/20 15:59 95-63-61.0 2
1,3,5-Trimethylbenzene ND ug/L 10/29/20 15:59 108-67-81.0 2
Vinyl chloride ND ug/L 10/29/20 15:59 75-01-42.0 2
m&p-Xylene 539 ug/L 10/29/20 15:59 179601-23-12.0 2
o-Xylene 226 ug/L 10/29/20 15:59 95-47-61.0 2
Surrogates
1,2-Dichloroethane-d4 (S)97 %10/29/20 15:59 17060-07-070-130 2
4-Bromofluorobenzene (S)96 %10/29/20 15:59 460-00-470-130 2
Toluene-d8 (S)100 %10/29/20 15:59 2037-26-570-130 2
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-12 Lab ID: 92502609003 Collected: 10/27/20 10:49 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 10/29/20 05:20 71-43-20.50 1
Bromobenzene ND ug/L 10/29/20 05:20 108-86-10.50 1
Bromochloromethane ND ug/L 10/29/20 05:20 74-97-50.50 1
Bromodichloromethane ND ug/L 10/29/20 05:20 75-27-40.50 1
Bromoform ND ug/L 10/29/20 05:20 75-25-20.50 1
Bromomethane ND ug/L 10/29/20 05:20 74-83-95.0 1
n-Butylbenzene ND ug/L 10/29/20 05:20 104-51-80.50 1
sec-Butylbenzene ND ug/L 10/29/20 05:20 135-98-80.50 1
tert-Butylbenzene ND ug/L 10/29/20 05:20 98-06-60.50 1
Carbon tetrachloride ND ug/L 10/29/20 05:20 56-23-50.50 1
Chlorobenzene ND ug/L 10/29/20 05:20 108-90-70.50 1
Chloroethane ND ug/L 10/29/20 05:20 75-00-31.0 1
Chloroform ND ug/L 10/29/20 05:20 67-66-30.50 1
Chloromethane ND ug/L 10/29/20 05:20 74-87-31.0 1
2-Chlorotoluene ND ug/L 10/29/20 05:20 95-49-80.50 1
4-Chlorotoluene ND ug/L 10/29/20 05:20 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 10/29/20 05:20 96-12-81.0 1
Dibromochloromethane ND ug/L 10/29/20 05:20 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 10/29/20 05:20 106-93-40.50 1
Dibromomethane ND ug/L 10/29/20 05:20 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 10/29/20 05:20 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 10/29/20 05:20 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 10/29/20 05:20 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 10/29/20 05:20 75-71-80.50 1
1,1-Dichloroethane ND ug/L 10/29/20 05:20 75-34-30.50 1
1,2-Dichloroethane ND ug/L 10/29/20 05:20 107-06-20.50 1
1,1-Dichloroethene ND ug/L 10/29/20 05:20 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 10/29/20 05:20 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 10/29/20 05:20 156-60-50.50 1
1,2-Dichloropropane ND ug/L 10/29/20 05:20 78-87-50.50 1
1,3-Dichloropropane ND ug/L 10/29/20 05:20 142-28-90.50 1
2,2-Dichloropropane ND ug/L 10/29/20 05:20 594-20-70.50 1
1,1-Dichloropropene ND ug/L 10/29/20 05:20 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 10/29/20 05:20 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 10/29/20 05:20 10061-02-60.50 1
Diisopropyl ether ND ug/L 10/29/20 05:20 108-20-30.50 1
Ethanol ND ug/L 10/29/20 05:20 64-17-5200 1
Ethylbenzene ND ug/L 10/29/20 05:20 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 10/29/20 05:20 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 10/29/20 05:20 98-82-80.50 1
Methylene Chloride ND ug/L 10/29/20 05:20 75-09-22.0 1
Methyl-tert-butyl ether ND ug/L 10/29/20 05:20 1634-04-40.50 1
Naphthalene ND ug/L 10/29/20 05:20 91-20-32.0 1
n-Propylbenzene ND ug/L 10/29/20 05:20 103-65-10.50 1
Styrene ND ug/L 10/29/20 05:20 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 10/29/20 05:20 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-12 Lab ID: 92502609003 Collected: 10/27/20 10:49 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 10/29/20 05:20 79-34-50.50 1
Tetrachloroethene ND ug/L 10/29/20 05:20 127-18-40.50 1
Toluene ND ug/L 10/29/20 05:20 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 10/29/20 05:20 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 10/29/20 05:20 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 10/29/20 05:20 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 10/29/20 05:20 79-00-50.50 1
Trichloroethene ND ug/L 10/29/20 05:20 79-01-60.50 1
Trichlorofluoromethane ND ug/L 10/29/20 05:20 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 10/29/20 05:20 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 10/29/20 05:20 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 10/29/20 05:20 108-67-80.50 1
Vinyl chloride ND ug/L 10/29/20 05:20 75-01-41.0 1
m&p-Xylene ND ug/L 10/29/20 05:20 179601-23-11.0 1
o-Xylene ND ug/L 10/29/20 05:20 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)99 %10/29/20 05:20 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %10/29/20 05:20 460-00-470-130 1
Toluene-d8 (S)99 %10/29/20 05:20 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: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-13 Lab ID: 92502609004 Collected: 10/27/20 10:20 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 152 ug/L 10/29/20 06:32 71-43-26.2 12.5
Bromobenzene ND ug/L 10/29/20 06:32 108-86-16.2 12.5
Bromochloromethane ND ug/L 10/29/20 06:32 74-97-56.2 12.5
Bromodichloromethane ND ug/L 10/29/20 06:32 75-27-46.2 12.5
Bromoform ND ug/L 10/29/20 06:32 75-25-26.2 12.5
Bromomethane ND ug/L 10/29/20 06:32 74-83-962.5 12.5
n-Butylbenzene ND ug/L 10/29/20 06:32 104-51-86.2 12.5
sec-Butylbenzene ND ug/L 10/29/20 06:32 135-98-86.2 12.5
tert-Butylbenzene ND ug/L 10/29/20 06:32 98-06-66.2 12.5
Carbon tetrachloride ND ug/L 10/29/20 06:32 56-23-56.2 12.5
Chlorobenzene ND ug/L 10/29/20 06:32 108-90-76.2 12.5
Chloroethane ND ug/L 10/29/20 06:32 75-00-312.5 12.5
Chloroform ND ug/L 10/29/20 06:32 67-66-36.2 12.5
Chloromethane ND ug/L 10/29/20 06:32 74-87-312.5 12.5
2-Chlorotoluene ND ug/L 10/29/20 06:32 95-49-86.2 12.5
4-Chlorotoluene ND ug/L 10/29/20 06:32 106-43-46.2 12.5
1,2-Dibromo-3-chloropropane ND ug/L 10/29/20 06:32 96-12-812.5 12.5
Dibromochloromethane ND ug/L 10/29/20 06:32 124-48-16.2 12.5
1,2-Dibromoethane (EDB)ND ug/L 10/29/20 06:32 106-93-46.2 12.5
Dibromomethane ND ug/L 10/29/20 06:32 74-95-36.2 12.5
1,2-Dichlorobenzene ND ug/L 10/29/20 06:32 95-50-16.2 12.5
1,3-Dichlorobenzene ND ug/L 10/29/20 06:32 541-73-16.2 12.5
1,4-Dichlorobenzene ND ug/L 10/29/20 06:32 106-46-76.2 12.5
Dichlorodifluoromethane ND ug/L 10/29/20 06:32 75-71-86.2 12.5
1,1-Dichloroethane ND ug/L 10/29/20 06:32 75-34-36.2 12.5
1,2-Dichloroethane ND ug/L 10/29/20 06:32 107-06-26.2 12.5
1,1-Dichloroethene ND ug/L 10/29/20 06:32 75-35-46.2 12.5
cis-1,2-Dichloroethene ND ug/L 10/29/20 06:32 156-59-26.2 12.5
trans-1,2-Dichloroethene ND ug/L 10/29/20 06:32 156-60-56.2 12.5
1,2-Dichloropropane ND ug/L 10/29/20 06:32 78-87-56.2 12.5
1,3-Dichloropropane ND ug/L 10/29/20 06:32 142-28-96.2 12.5
2,2-Dichloropropane ND ug/L 10/29/20 06:32 594-20-76.2 12.5
1,1-Dichloropropene ND ug/L 10/29/20 06:32 563-58-66.2 12.5
cis-1,3-Dichloropropene ND ug/L 10/29/20 06:32 10061-01-56.2 12.5
trans-1,3-Dichloropropene ND ug/L 10/29/20 06:32 10061-02-66.2 12.5
Diisopropyl ether 19.5 ug/L 10/29/20 06:32 108-20-36.2 12.5
Ethanol ND ug/L 10/29/20 06:32 64-17-52500 12.5
Ethylbenzene 286 ug/L 10/29/20 06:32 100-41-46.2 12.5
Hexachloro-1,3-butadiene ND ug/L 10/29/20 06:32 87-68-325.0 12.5
Isopropylbenzene (Cumene)17.2 ug/L 10/29/20 06:32 98-82-86.2 12.5
Methylene Chloride ND ug/L 10/29/20 06:32 75-09-225.0 12.5
Methyl-tert-butyl ether 8.0 ug/L 10/29/20 06:32 1634-04-46.2 12.5
Naphthalene 176 ug/L 10/29/20 06:32 91-20-325.0 12.5
n-Propylbenzene ND ug/L 10/29/20 06:32 103-65-16.2 12.5
Styrene 21.2 ug/L 10/29/20 06:32 100-42-56.2 12.5
1,1,1,2-Tetrachloroethane ND ug/L 10/29/20 06:32 630-20-66.2 12.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 11 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-13 Lab ID: 92502609004 Collected: 10/27/20 10:20 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 10/29/20 06:32 79-34-56.2 12.5
Tetrachloroethene ND ug/L 10/29/20 06:32 127-18-46.2 12.5
Toluene 1260 ug/L 10/29/20 06:32 108-88-36.2 12.5
1,2,3-Trichlorobenzene ND ug/L 10/29/20 06:32 87-61-625.0 12.5
1,2,4-Trichlorobenzene ND ug/L 10/29/20 06:32 120-82-125.0 12.5
1,1,1-Trichloroethane ND ug/L 10/29/20 06:32 71-55-66.2 12.5
1,1,2-Trichloroethane ND ug/L 10/29/20 06:32 79-00-56.2 12.5
Trichloroethene ND ug/L 10/29/20 06:32 79-01-66.2 12.5
Trichlorofluoromethane ND ug/L 10/29/20 06:32 75-69-412.5 12.5
1,2,3-Trichloropropane ND ug/L 10/29/20 06:32 96-18-46.2 12.5
1,2,4-Trimethylbenzene 806 ug/L 10/29/20 06:32 95-63-66.2 12.5
1,3,5-Trimethylbenzene ND ug/L 10/29/20 06:32 108-67-86.2 12.5
Vinyl chloride ND ug/L 10/29/20 06:32 75-01-412.5 12.5
m&p-Xylene 1520 ug/L 10/29/20 06:32 179601-23-112.5 12.5
o-Xylene 840 ug/L 10/29/20 06:32 95-47-66.2 12.5
Surrogates
1,2-Dichloroethane-d4 (S)103 %10/29/20 06:32 17060-07-070-130 12.5
4-Bromofluorobenzene (S)98 %10/29/20 06:32 460-00-470-130 12.5
Toluene-d8 (S)99 %10/29/20 06:32 2037-26-570-130 12.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 12 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-14 Lab ID: 92502609005 Collected: 10/27/20 09:57 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 10/29/20 05:38 71-43-20.50 1
Bromobenzene ND ug/L 10/29/20 05:38 108-86-10.50 1
Bromochloromethane ND ug/L 10/29/20 05:38 74-97-50.50 1
Bromodichloromethane ND ug/L 10/29/20 05:38 75-27-40.50 1
Bromoform ND ug/L 10/29/20 05:38 75-25-20.50 1
Bromomethane ND ug/L 10/29/20 05:38 74-83-95.0 1
n-Butylbenzene ND ug/L 10/29/20 05:38 104-51-80.50 1
sec-Butylbenzene ND ug/L 10/29/20 05:38 135-98-80.50 1
tert-Butylbenzene ND ug/L 10/29/20 05:38 98-06-60.50 1
Carbon tetrachloride ND ug/L 10/29/20 05:38 56-23-50.50 1
Chlorobenzene ND ug/L 10/29/20 05:38 108-90-70.50 1
Chloroethane ND ug/L 10/29/20 05:38 75-00-31.0 1
Chloroform ND ug/L 10/29/20 05:38 67-66-30.50 1
Chloromethane ND ug/L 10/29/20 05:38 74-87-31.0 1
2-Chlorotoluene ND ug/L 10/29/20 05:38 95-49-80.50 1
4-Chlorotoluene ND ug/L 10/29/20 05:38 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 10/29/20 05:38 96-12-81.0 1
Dibromochloromethane ND ug/L 10/29/20 05:38 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 10/29/20 05:38 106-93-40.50 1
Dibromomethane ND ug/L 10/29/20 05:38 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 10/29/20 05:38 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 10/29/20 05:38 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 10/29/20 05:38 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 10/29/20 05:38 75-71-80.50 1
1,1-Dichloroethane ND ug/L 10/29/20 05:38 75-34-30.50 1
1,2-Dichloroethane ND ug/L 10/29/20 05:38 107-06-20.50 1
1,1-Dichloroethene ND ug/L 10/29/20 05:38 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 10/29/20 05:38 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 10/29/20 05:38 156-60-50.50 1
1,2-Dichloropropane ND ug/L 10/29/20 05:38 78-87-50.50 1
1,3-Dichloropropane ND ug/L 10/29/20 05:38 142-28-90.50 1
2,2-Dichloropropane ND ug/L 10/29/20 05:38 594-20-70.50 1
1,1-Dichloropropene ND ug/L 10/29/20 05:38 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 10/29/20 05:38 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 10/29/20 05:38 10061-02-60.50 1
Diisopropyl ether ND ug/L 10/29/20 05:38 108-20-30.50 1
Ethanol ND ug/L 10/29/20 05:38 64-17-5200 1
Ethylbenzene ND ug/L 10/29/20 05:38 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 10/29/20 05:38 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 10/29/20 05:38 98-82-80.50 1
Methylene Chloride ND ug/L 10/29/20 05:38 75-09-22.0 1
Methyl-tert-butyl ether ND ug/L 10/29/20 05:38 1634-04-40.50 1
Naphthalene ND ug/L 10/29/20 05:38 91-20-32.0 1
n-Propylbenzene ND ug/L 10/29/20 05:38 103-65-10.50 1
Styrene ND ug/L 10/29/20 05:38 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 10/29/20 05:38 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 29
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92502609
CEMEX
Sample: MW-14 Lab ID: 92502609005 Collected: 10/27/20 09:57 Received: 10/28/20 10:41 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 10/29/20 05:38 79-34-50.50 1
Tetrachloroethene ND ug/L 10/29/20 05:38 127-18-40.50 1
Toluene ND ug/L 10/29/20 05:38 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 10/29/20 05:38 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 10/29/20 05:38 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 10/29/20 05:38 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 10/29/20 05:38 79-00-50.50 1
Trichloroethene ND ug/L 10/29/20 05:38 79-01-60.50 1
Trichlorofluoromethane ND ug/L 10/29/20 05:38 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 10/29/20 05:38 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 10/29/20 05:38 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 10/29/20 05:38 108-67-80.50 1
Vinyl chloride ND ug/L 10/29/20 05:38 75-01-41.0 1
m&p-Xylene ND ug/L 10/29/20 05:38 179601-23-11.0 1
o-Xylene ND ug/L 10/29/20 05:38 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)99 %10/29/20 05:38 17060-07-070-130 1
4-Bromofluorobenzene (S)97 %10/29/20 05:38 460-00-470-130 1
Toluene-d8 (S)99 %10/29/20 05:38 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: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 14 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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:
576403
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples: 92502609001, 92502609003, 92502609004, 92502609005
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 3050399
Associated Lab Samples:92502609001, 92502609003, 92502609004, 92502609005
Matrix: Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 10/29/20 00:33
1,1,1-Trichloroethane ug/L ND 0.50 10/29/20 00:33
1,1,2,2-Tetrachloroethane ug/L ND 0.50 10/29/20 00:33
1,1,2-Trichloroethane ug/L ND 0.50 10/29/20 00:33
1,1-Dichloroethane ug/L ND 0.50 10/29/20 00:33
1,1-Dichloroethene ug/L ND 0.50 10/29/20 00:33
1,1-Dichloropropene ug/L ND 0.50 10/29/20 00:33
1,2,3-Trichlorobenzene ug/L ND 2.0 10/29/20 00:33
1,2,3-Trichloropropane ug/L ND 0.50 10/29/20 00:33
1,2,4-Trichlorobenzene ug/L ND 2.0 10/29/20 00:33
1,2,4-Trimethylbenzene ug/L ND 0.50 10/29/20 00:33
1,2-Dibromo-3-chloropropane ug/L ND 1.0 10/29/20 00:33
1,2-Dibromoethane (EDB)ug/L ND 0.50 10/29/20 00:33
1,2-Dichlorobenzene ug/L ND 0.50 10/29/20 00:33
1,2-Dichloroethane ug/L ND 0.50 10/29/20 00:33
1,2-Dichloropropane ug/L ND 0.50 10/29/20 00:33
1,3,5-Trimethylbenzene ug/L ND 0.50 10/29/20 00:33
1,3-Dichlorobenzene ug/L ND 0.50 10/29/20 00:33
1,3-Dichloropropane ug/L ND 0.50 10/29/20 00:33
1,4-Dichlorobenzene ug/L ND 0.50 10/29/20 00:33
2,2-Dichloropropane ug/L ND 0.50 10/29/20 00:33
2-Chlorotoluene ug/L ND 0.50 10/29/20 00:33
4-Chlorotoluene ug/L ND 0.50 10/29/20 00:33
Benzene ug/L ND 0.50 10/29/20 00:33
Bromobenzene ug/L ND 0.50 10/29/20 00:33
Bromochloromethane ug/L ND 0.50 10/29/20 00:33
Bromodichloromethane ug/L ND 0.50 10/29/20 00:33
Bromoform ug/L ND 0.50 10/29/20 00:33
Bromomethane ug/L ND 5.0 10/29/20 00:33
Carbon tetrachloride ug/L ND 0.50 10/29/20 00:33
Chlorobenzene ug/L ND 0.50 10/29/20 00:33
Chloroethane ug/L ND 1.0 10/29/20 00:33
Chloroform ug/L ND 0.50 10/29/20 00:33
Chloromethane ug/L ND 1.0 10/29/20 00:33
cis-1,2-Dichloroethene ug/L ND 0.50 10/29/20 00:33
cis-1,3-Dichloropropene ug/L ND 0.50 10/29/20 00:33
Dibromochloromethane ug/L ND 0.50 10/29/20 00:33
Dibromomethane ug/L ND 0.50 10/29/20 00:33
Dichlorodifluoromethane ug/L ND 0.50 10/29/20 00:33
Diisopropyl ether ug/L ND 0.50 10/29/20 00:33
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 15 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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: 3050399
Associated Lab Samples:92502609001, 92502609003, 92502609004, 92502609005
Matrix: Water
Analyzed
Ethanol ug/L ND 200 10/29/20 00:33
Ethylbenzene ug/L ND 0.50 10/29/20 00:33
Hexachloro-1,3-butadiene ug/L ND 2.0 10/29/20 00:33
Isopropylbenzene (Cumene)ug/L ND 0.50 10/29/20 00:33
m&p-Xylene ug/L ND 1.0 10/29/20 00:33
Methyl-tert-butyl ether ug/L ND 0.50 10/29/20 00:33
Methylene Chloride ug/L ND 2.0 10/29/20 00:33
n-Butylbenzene ug/L ND 0.50 10/29/20 00:33
n-Propylbenzene ug/L ND 0.50 10/29/20 00:33
Naphthalene ug/L ND 2.0 10/29/20 00:33
o-Xylene ug/L ND 0.50 10/29/20 00:33
sec-Butylbenzene ug/L ND 0.50 10/29/20 00:33
Styrene ug/L ND 0.50 10/29/20 00:33
tert-Butylbenzene ug/L ND 0.50 10/29/20 00:33
Tetrachloroethene ug/L ND 0.50 10/29/20 00:33
Toluene ug/L ND 0.50 10/29/20 00:33
trans-1,2-Dichloroethene ug/L ND 0.50 10/29/20 00:33
trans-1,3-Dichloropropene ug/L ND 0.50 10/29/20 00:33
Trichloroethene ug/L ND 0.50 10/29/20 00:33
Trichlorofluoromethane ug/L ND 1.0 10/29/20 00:33
Vinyl chloride ug/L ND 1.0 10/29/20 00:33
1,2-Dichloroethane-d4 (S)%98 70-130 10/29/20 00:33
4-Bromofluorobenzene (S)%95 70-130 10/29/20 00:33
Toluene-d8 (S)%100 70-130 10/29/20 00:33
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3050400LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 54.950 110 60-140
1,1,1-Trichloroethane ug/L 52.250 104 60-140
1,1,2,2-Tetrachloroethane ug/L 54.750 109 60-140
1,1,2-Trichloroethane ug/L 53.350 107 60-140
1,1-Dichloroethane ug/L 52.550 105 60-140
1,1-Dichloroethene ug/L 53.950 108 60-140
1,1-Dichloropropene ug/L 53.250 106 60-140
1,2,3-Trichlorobenzene ug/L 57.250 114 60-140
1,2,3-Trichloropropane ug/L 53.250 106 60-140
1,2,4-Trichlorobenzene ug/L 58.150 116 60-140
1,2,4-Trimethylbenzene ug/L 51.950 104 60-140
1,2-Dibromo-3-chloropropane ug/L 61.450 123 60-140
1,2-Dibromoethane (EDB)ug/L 56.250 112 60-140
1,2-Dichlorobenzene ug/L 53.650 107 60-140
1,2-Dichloroethane ug/L 48.050 96 60-140
1,2-Dichloropropane ug/L 54.350 109 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 16 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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.
3050400LABORATORY CONTROL SAMPLE:
LCSSpike
1,3,5-Trimethylbenzene ug/L 53.150 106 60-140
1,3-Dichlorobenzene ug/L 53.950 108 60-140
1,3-Dichloropropane ug/L 55.750 111 60-140
1,4-Dichlorobenzene ug/L 54.250 108 60-140
2,2-Dichloropropane ug/L 52.450 105 60-140
2-Chlorotoluene ug/L 53.050 106 60-140
4-Chlorotoluene ug/L 52.650 105 60-140
Benzene ug/L 52.950 106 60-140
Bromobenzene ug/L 52.250 104 60-140
Bromochloromethane ug/L 52.950 106 60-140
Bromodichloromethane ug/L 53.250 106 60-140
Bromoform ug/L 53.150 106 60-140
Bromomethane ug/L 55.550 111 60-140
Carbon tetrachloride ug/L 51.550 103 60-140
Chlorobenzene ug/L 53.450 107 60-140
Chloroethane ug/L 40.350 81 60-140
Chloroform ug/L 51.650 103 60-140
Chloromethane ug/L 48.150 96 60-140
cis-1,2-Dichloroethene ug/L 51.450 103 60-140
cis-1,3-Dichloropropene ug/L 55.750 111 60-140
Dibromochloromethane ug/L 57.450 115 60-140
Dibromomethane ug/L 56.450 113 60-140
Dichlorodifluoromethane ug/L 47.750 95 60-140
Diisopropyl ether ug/L 51.450 103 60-140
Ethanol ug/L 23202000 116 60-140
Ethylbenzene ug/L 51.950 104 60-140
Hexachloro-1,3-butadiene ug/L 53.550 107 60-140
Isopropylbenzene (Cumene)ug/L 54.650 109 60-140
m&p-Xylene ug/L 106100 106 60-140
Methyl-tert-butyl ether ug/L 53.550 107 60-140
Methylene Chloride ug/L 50.850 102 60-140
n-Butylbenzene ug/L 55.050 110 60-140
n-Propylbenzene ug/L 53.250 106 60-140
Naphthalene ug/L 61.750 123 60-140
o-Xylene ug/L 53.850 108 60-140
sec-Butylbenzene ug/L 53.250 106 60-140
Styrene ug/L 54.850 110 60-140
tert-Butylbenzene ug/L 45.750 91 60-140
Tetrachloroethene ug/L 53.650 107 60-140
Toluene ug/L 52.550 105 60-140
trans-1,2-Dichloroethene ug/L 53.650 107 60-140
trans-1,3-Dichloropropene ug/L 55.050 110 60-140
Trichloroethene ug/L 54.150 108 60-140
Trichlorofluoromethane ug/L 42.750 85 60-140
Vinyl chloride ug/L 46.550 93 60-140
1,2-Dichloroethane-d4 (S)%99 70-130
4-Bromofluorobenzene (S)%102 70-130
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 17 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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.
3050400LABORATORY CONTROL SAMPLE:
LCSSpike
Toluene-d8 (S)%99 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3050401MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92502026004
3050402
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 113 60-140115 120ND22.6 22.9
1,1,1-Trichloroethane ug/L 20 117 60-140115 220ND23.5 23.0
1,1,2,2-Tetrachloroethane ug/L 20 113 60-140112 120ND22.7 22.4
1,1,2-Trichloroethane ug/L 20 111 60-140111 120ND22.2 22.3
1,1-Dichloroethane ug/L 20 112 60-140112 020ND22.3 22.4
1,1-Dichloroethene ug/L 20 128 60-140124 420ND25.7 24.7
1,1-Dichloropropene ug/L 20 116 60-140116 020ND23.2 23.1
1,2,3-Trichlorobenzene ug/L 20 131 60-140122 720ND26.2 24.5
1,2,3-Trichloropropane ug/L 20 115 60-140112 320ND23.0 22.4
1,2,4-Trichlorobenzene ug/L 20 132 60-140122 820ND26.3 24.3
1,2,4-Trimethylbenzene ug/L 20 112 60-140113 120ND22.5 22.6
1,2-Dibromo-3-chloropropane ug/L 20 127 60-140128 120ND25.4 25.7
1,2-Dibromoethane (EDB)ug/L 20 115 60-140117 220ND22.9 23.3
1,2-Dichlorobenzene ug/L 20 113 60-140111 220ND22.6 22.3
1,2-Dichloroethane ug/L 20 100 60-140100 020ND19.9 19.9
1,2-Dichloropropane ug/L 20 112 60-140114 220ND22.4 22.9
1,3,5-Trimethylbenzene ug/L 20 115 60-140118 320ND23.0 23.6
1,3-Dichlorobenzene ug/L 20 112 60-140115 220ND22.5 23.0
1,3-Dichloropropane ug/L 20 116 60-140115 120ND23.1 23.0
1,4-Dichlorobenzene ug/L 20 112 60-140113 120ND22.4 22.7
2,2-Dichloropropane ug/L 20 119 60-140120 120ND23.8 23.9
2-Chlorotoluene ug/L 20 115 60-140118 320ND23.0 23.7
4-Chlorotoluene ug/L 20 109 60-140113 320ND21.9 22.5
Benzene ug/L 20 113 60-140113 020ND22.7 22.6
Bromobenzene ug/L 20 111 60-140114 320ND22.2 22.8
Bromochloromethane ug/L 20 108 60-140106 220ND21.6 21.2
Bromodichloromethane ug/L 20 108 60-140110 120ND21.7 21.9
Bromoform ug/L 20 109 60-140107 220ND21.8 21.3
Bromomethane ug/L 20 130 60-140133 220ND25.9 26.6
Carbon tetrachloride ug/L 20 118 60-140116 220ND23.6 23.2
Chlorobenzene ug/L 20 113 60-140114 120ND22.6 22.8
Chloroethane ug/L 20 101 60-140101 020ND20.2 20.3
Chloroform ug/L 20 114 60-140117 320ND22.7 23.3
Chloromethane ug/L 20 106 60-140105 120ND21.2 21.0
cis-1,2-Dichloroethene ug/L 20 110 60-140111 120ND22.0 22.1
cis-1,3-Dichloropropene ug/L 20 116 60-140115 020ND23.1 23.0
Dibromochloromethane ug/L 20 118 60-140117 120ND23.6 23.4
Dibromomethane ug/L 20 117 60-140115 120ND23.4 23.1
Dichlorodifluoromethane ug/L 20 100 60-140100 020ND20.0 20.0
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 18 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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.
3050401MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92502026004
3050402
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Diisopropyl ether ug/L 20 107 60-140108 120ND21.4 21.6
Ethanol ug/L 800 132 60-140128 3800ND1060 1020
Ethylbenzene ug/L 20 112 60-140112 020ND22.5 22.4
Hexachloro-1,3-butadiene ug/L 20 138 60-140128 720ND27.5 25.6
Isopropylbenzene (Cumene) ug/L 20 118 60-140117 120ND23.7 23.4
m&p-Xylene ug/L 40 114 60-140112 240ND45.7 44.7
Methyl-tert-butyl ether ug/L 20 110 60-140108 120ND22.0 21.7
Methylene Chloride ug/L 20 108 60-140107 120ND21.6 21.5
n-Butylbenzene ug/L 20 126 60-140122 320ND25.2 24.4
n-Propylbenzene ug/L 20 116 60-140119 220ND23.3 23.7
Naphthalene ug/L 20 132 60-140125 520ND26.5 25.1
o-Xylene ug/L 20 114 60-140113 020ND22.7 22.7
sec-Butylbenzene ug/L 20 119 60-140121 120ND23.9 24.1
Styrene ug/L 20 112 60-140109 220ND22.3 21.9
tert-Butylbenzene ug/L 20 101 60-140103 220ND20.1 20.6
Tetrachloroethene ug/L 20 117 60-140116 120ND23.4 23.1
Toluene ug/L 20 111 60-140111 020ND22.3 22.3
trans-1,2-Dichloroethene ug/L 20 116 60-140117 120ND23.3 23.4
trans-1,3-Dichloropropene ug/L 20 113 60-140112 120ND22.6 22.3
Trichloroethene ug/L 20 116 60-140117 120ND23.2 23.5
Trichlorofluoromethane ug/L 20 105 60-140107 220ND21.0 21.4
Vinyl chloride ug/L 20 104 60-140105 120ND20.8 21.0
1,2-Dichloroethane-d4 (S)%101 70-130102
4-Bromofluorobenzene (S)%99 70-13098
Toluene-d8 (S)%99 70-130100
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 19 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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:
576667
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples: 92502609002
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 3051751
Associated Lab Samples:92502609002
Matrix: Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 10/29/20 11:48
1,1,1-Trichloroethane ug/L ND 0.50 10/29/20 11:48
1,1,2,2-Tetrachloroethane ug/L ND 0.50 10/29/20 11:48
1,1,2-Trichloroethane ug/L ND 0.50 10/29/20 11:48
1,1-Dichloroethane ug/L ND 0.50 10/29/20 11:48
1,1-Dichloroethene ug/L ND 0.50 10/29/20 11:48
1,1-Dichloropropene ug/L ND 0.50 10/29/20 11:48
1,2,3-Trichlorobenzene ug/L ND 2.0 10/29/20 11:48
1,2,3-Trichloropropane ug/L ND 0.50 10/29/20 11:48
1,2,4-Trichlorobenzene ug/L ND 2.0 10/29/20 11:48
1,2,4-Trimethylbenzene ug/L ND 0.50 10/29/20 11:48
1,2-Dibromo-3-chloropropane ug/L ND 1.0 10/29/20 11:48
1,2-Dibromoethane (EDB)ug/L ND 0.50 10/29/20 11:48
1,2-Dichlorobenzene ug/L ND 0.50 10/29/20 11:48
1,2-Dichloroethane ug/L ND 0.50 10/29/20 11:48
1,2-Dichloropropane ug/L ND 0.50 10/29/20 11:48
1,3,5-Trimethylbenzene ug/L ND 0.50 10/29/20 11:48
1,3-Dichlorobenzene ug/L ND 0.50 10/29/20 11:48
1,3-Dichloropropane ug/L ND 0.50 10/29/20 11:48
1,4-Dichlorobenzene ug/L ND 0.50 10/29/20 11:48
2,2-Dichloropropane ug/L ND 0.50 10/29/20 11:48
2-Chlorotoluene ug/L ND 0.50 10/29/20 11:48
4-Chlorotoluene ug/L ND 0.50 10/29/20 11:48
Benzene ug/L ND 0.50 10/29/20 11:48
Bromobenzene ug/L ND 0.50 10/29/20 11:48
Bromochloromethane ug/L ND 0.50 10/29/20 11:48
Bromodichloromethane ug/L ND 0.50 10/29/20 11:48
Bromoform ug/L ND 0.50 10/29/20 11:48
Bromomethane ug/L ND 5.0 10/29/20 11:48
Carbon tetrachloride ug/L ND 0.50 10/29/20 11:48
Chlorobenzene ug/L ND 0.50 10/29/20 11:48
Chloroethane ug/L ND 1.0 10/29/20 11:48
Chloroform ug/L ND 0.50 10/29/20 11:48
Chloromethane ug/L ND 1.0 10/29/20 11:48
cis-1,2-Dichloroethene ug/L ND 0.50 10/29/20 11:48
cis-1,3-Dichloropropene ug/L ND 0.50 10/29/20 11:48
Dibromochloromethane ug/L ND 0.50 10/29/20 11:48
Dibromomethane ug/L ND 0.50 10/29/20 11:48
Dichlorodifluoromethane ug/L ND 0.50 10/29/20 11:48
Diisopropyl ether ug/L ND 0.50 10/29/20 11:48
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 20 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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: 3051751
Associated Lab Samples:92502609002
Matrix: Water
Analyzed
Ethanol ug/L ND 200 10/29/20 11:48
Ethylbenzene ug/L ND 0.50 10/29/20 11:48
Hexachloro-1,3-butadiene ug/L ND 2.0 10/29/20 11:48
Isopropylbenzene (Cumene)ug/L ND 0.50 10/29/20 11:48
m&p-Xylene ug/L ND 1.0 10/29/20 11:48
Methyl-tert-butyl ether ug/L ND 0.50 10/29/20 11:48
Methylene Chloride ug/L ND 2.0 10/29/20 11:48
n-Butylbenzene ug/L ND 0.50 10/29/20 11:48
n-Propylbenzene ug/L ND 0.50 10/29/20 11:48
Naphthalene ug/L ND 2.0 10/29/20 11:48
o-Xylene ug/L ND 0.50 10/29/20 11:48
sec-Butylbenzene ug/L ND 0.50 10/29/20 11:48
Styrene ug/L ND 0.50 10/29/20 11:48
tert-Butylbenzene ug/L ND 0.50 10/29/20 11:48
Tetrachloroethene ug/L ND 0.50 10/29/20 11:48
Toluene ug/L ND 0.50 10/29/20 11:48
trans-1,2-Dichloroethene ug/L ND 0.50 10/29/20 11:48
trans-1,3-Dichloropropene ug/L ND 0.50 10/29/20 11:48
Trichloroethene ug/L ND 0.50 10/29/20 11:48
Trichlorofluoromethane ug/L ND 1.0 10/29/20 11:48
Vinyl chloride ug/L ND 1.0 10/29/20 11:48
1,2-Dichloroethane-d4 (S)%101 70-130 10/29/20 11:48
4-Bromofluorobenzene (S)%95 70-130 10/29/20 11:48
Toluene-d8 (S)%101 70-130 10/29/20 11:48
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3051752LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 51.950 104 60-140
1,1,1-Trichloroethane ug/L 51.350 103 60-140
1,1,2,2-Tetrachloroethane ug/L 50.150 100 60-140
1,1,2-Trichloroethane ug/L 50.750 101 60-140
1,1-Dichloroethane ug/L 50.750 101 60-140
1,1-Dichloroethene ug/L 53.650 107 60-140
1,1-Dichloropropene ug/L 50.450 101 60-140
1,2,3-Trichlorobenzene ug/L 54.550 109 60-140
1,2,3-Trichloropropane ug/L 50.750 101 60-140
1,2,4-Trichlorobenzene ug/L 56.150 112 60-140
1,2,4-Trimethylbenzene ug/L 51.450 103 60-140
1,2-Dibromo-3-chloropropane ug/L 55.850 112 60-140
1,2-Dibromoethane (EDB)ug/L 52.850 106 60-140
1,2-Dichlorobenzene ug/L 51.950 104 60-140
1,2-Dichloroethane ug/L 44.950 90 60-140
1,2-Dichloropropane ug/L 50.950 102 60-140
REPORT OF LABORATORY ANALYSIS
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Page 21 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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.
3051752LABORATORY CONTROL SAMPLE:
LCSSpike
1,3,5-Trimethylbenzene ug/L 51.450 103 60-140
1,3-Dichlorobenzene ug/L 52.350 105 60-140
1,3-Dichloropropane ug/L 52.650 105 60-140
1,4-Dichlorobenzene ug/L 52.150 104 60-140
2,2-Dichloropropane ug/L 51.450 103 60-140
2-Chlorotoluene ug/L 52.850 106 60-140
4-Chlorotoluene ug/L 51.150 102 60-140
Benzene ug/L 50.550 101 60-140
Bromobenzene ug/L 50.350 101 60-140
Bromochloromethane ug/L 49.450 99 60-140
Bromodichloromethane ug/L 50.050 100 60-140
Bromoform ug/L 50.850 102 60-140
Bromomethane ug/L 60.850 122 60-140
Carbon tetrachloride ug/L 49.250 98 60-140
Chlorobenzene ug/L 51.250 102 60-140
Chloroethane ug/L 39.950 80 60-140
Chloroform ug/L 51.050 102 60-140
Chloromethane ug/L 45.450 91 60-140
cis-1,2-Dichloroethene ug/L 49.050 98 60-140
cis-1,3-Dichloropropene ug/L 52.350 105 60-140
Dibromochloromethane ug/L 54.250 108 60-140
Dibromomethane ug/L 52.050 104 60-140
Dichlorodifluoromethane ug/L 44.650 89 60-140
Diisopropyl ether ug/L 48.950 98 60-140
Ethanol ug/L 20602000 103 60-140
Ethylbenzene ug/L 50.350 101 60-140
Hexachloro-1,3-butadiene ug/L 52.650 105 60-140
Isopropylbenzene (Cumene)ug/L 52.350 105 60-140
m&p-Xylene ug/L 102100 102 60-140
Methyl-tert-butyl ether ug/L 50.450 101 60-140
Methylene Chloride ug/L 49.150 98 60-140
n-Butylbenzene ug/L 54.550 109 60-140
n-Propylbenzene ug/L 51.450 103 60-140
Naphthalene ug/L 56.050 112 60-140
o-Xylene ug/L 51.550 103 60-140
sec-Butylbenzene ug/L 52.150 104 60-140
Styrene ug/L 52.350 105 60-140
tert-Butylbenzene ug/L 44.250 88 60-140
Tetrachloroethene ug/L 51.650 103 60-140
Toluene ug/L 49.550 99 60-140
trans-1,2-Dichloroethene ug/L 51.650 103 60-140
trans-1,3-Dichloropropene ug/L 51.650 103 60-140
Trichloroethene ug/L 51.350 103 60-140
Trichlorofluoromethane ug/L 43.650 87 60-140
Vinyl chloride ug/L 45.750 91 60-140
1,2-Dichloroethane-d4 (S)%95 70-130
4-Bromofluorobenzene (S)%99 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
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Page 22 of 29
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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.
3051752LABORATORY CONTROL SAMPLE:
LCSSpike
Toluene-d8 (S)%99 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3051753MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92501901001
3051754
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 2000 110 60-140112 22000ND2210 2250
1,1,1-Trichloroethane ug/L 2000 114 60-140117 22000ND2270 2330
1,1,2,2-Tetrachloroethane ug/L 2000 106 60-140106 02000ND2120 2110
1,1,2-Trichloroethane ug/L 2000 109 60-140111 22000ND2170 2220
1,1-Dichloroethane ug/L 2000 113 60-140115 22000ND2260 2290
1,1-Dichloroethene ug/L 2000 121 60-140122 22000ND2410 2450
1,1-Dichloropropene ug/L 2000 114 60-140117 32000ND2280 2340
1,2,3-Trichlorobenzene ug/L 2000 100 60-140112 122000ND1990 2250
1,2,3-Trichloropropane ug/L 2000 105 60-140106 12000ND2090 2110
1,2,4-Trichlorobenzene ug/L 2000 100 60-140111 102000ND2010 2220
1,2,4-Trimethylbenzene ug/L 2000 102 60-140122 12200010503100 3480
1,2-Dibromo-3-chloropropane ug/L 2000 109 60-140111 12000ND2190 2210
1,2-Dibromoethane (EDB)ug/L 2000 110 60-140114 32000ND2250 2330
1,2-Dichlorobenzene ug/L 2000 104 60-140109 42000ND2080 2170
1,2-Dichloroethane ug/L 2000 100 60-14099 12000ND2030 2010
1,2-Dichloropropane ug/L 2000 112 60-140113 02000ND2250 2260
1,3,5-Trimethylbenzene ug/L 2000 122 60-140131 82000ND2430 2620
1,3-Dichlorobenzene ug/L 2000 103 60-140109 62000ND2060 2190
1,3-Dichloropropane ug/L 2000 113 60-140112 12000ND2260 2250
1,4-Dichlorobenzene ug/L 2000 103 60-140109 62000ND2060 2180
2,2-Dichloropropane ug/L 2000 103 60-140104 12000ND2060 2090
2-Chlorotoluene ug/L 2000 106 60-140114 72000ND2120 2290
4-Chlorotoluene ug/L 2000 104 60-140108 42000ND2080 2160
Benzene ug/L M1200011360-140173 17200043806630 7840
Bromobenzene ug/L 2000 106 60-140111 42000ND2120 2220
Bromochloromethane ug/L 2000 108 60-140109 12000ND2160 2180
Bromodichloromethane ug/L 2000 109 60-140107 22000ND2180 2140
Bromoform ug/L 2000 99 60-140101 22000ND1990 2030
Bromomethane ug/L 2000 112 60-140136 192000ND2240 2720
Carbon tetrachloride ug/L 2000 112 60-140115 22000ND2250 2300
Chlorobenzene ug/L 2000 111 60-140112 22000ND2210 2250
Chloroethane ug/L 2000 99 60-140103 32000ND1990 2060
Chloroform ug/L 2000 107 60-140111 42000ND2160 2250
Chloromethane ug/L 2000 93 60-14097 42000ND1860 1950
cis-1,2-Dichloroethene ug/L 2000 110 60-140108 22000ND2200 2170
cis-1,3-Dichloropropene ug/L 2000 110 60-140111 12000ND2200 2230
Dibromochloromethane ug/L 2000 108 60-140115 72000ND2160 2310
Dibromomethane ug/L 2000 115 60-140114 12000ND2300 2270
Dichlorodifluoromethane ug/L 2000 95 60-14099 42000ND1900 1970
REPORT OF LABORATORY ANALYSIS
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#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92502609
CEMEX
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.
3051753MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92501901001
3051754
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Diisopropyl ether ug/L 2000 109 60-140108 12000ND2180 2170
Ethanol ug/L 80000 117 60-140113 480000ND93700 90400
Ethylbenzene ug/L 2000 107 60-140122 1020008302970 3280
Hexachloro-1,3-butadiene ug/L 2000 101 60-140115 122000ND2030 2290
Isopropylbenzene (Cumene) ug/L 2000 111 60-140116 42000ND2270 2360
m&p-Xylene ug/L 4000 106 60-140129 12400029607200 8110
Methyl-tert-butyl ether ug/L 2000 108 60-140112 420001822340 2430
Methylene Chloride ug/L 2000 107 60-140109 12000ND2250 2280
n-Butylbenzene ug/L 2000 108 60-140118 82000ND2170 2360
n-Propylbenzene ug/L 2000 115 60-140123 72000ND2300 2460
Naphthalene ug/L 2000 102 60-140114 1020003712410 2660
o-Xylene ug/L 2000 109 60-140125 8200013903570 3880
sec-Butylbenzene ug/L 2000 109 60-140116 62000ND2190 2330
Styrene ug/L 2000 107 60-140111 32000ND2140 2220
tert-Butylbenzene ug/L 2000 94 60-14099 62000ND1880 1990
Tetrachloroethene ug/L 2000 112 60-140113 22000ND2230 2270
Toluene ug/L M1200010960-140224 192000861010800 13100
trans-1,2-Dichloroethene ug/L 2000 114 60-140115 12000ND2270 2300
trans-1,3-Dichloropropene ug/L 2000 105 60-140107 22000ND2090 2140
Trichloroethene ug/L 2000 112 60-140117 42000ND2250 2340
Trichlorofluoromethane ug/L 2000 103 60-140107 42000ND2060 2140
Vinyl chloride ug/L 2000 99 60-140102 32000ND1990 2040
1,2-Dichloroethane-d4 (S)%106 70-130103
4-Bromofluorobenzene (S)%99 70-13098
Toluene-d8 (S)%98 70-13098
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 10/30/2020 03:42 PM
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Page 24 of 29
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92502609
CEMEX
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.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
REPORT OF LABORATORY ANALYSIS
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Huntersville, NC 28078
[phone]
Page 25 of 29
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92502609
CEMEX
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92502609001 576403MW-1 SM 6200B
92502609002 576667MW-7 SM 6200B
92502609003 576403MW-12 SM 6200B
92502609004 576403MW-13 SM 6200B
92502609005 576403MW-14 SM 6200B
REPORT OF LABORATORY ANALYSIS
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Page 27 of 29
Page 28 of 29
Page 29 of 29
APPENDIX B
TIME VERSUS CONCENTRATION GRAPHS ________________________________________________________

02,0004,0006,0008,00010,00012,00014,00016,00018,00020,000CONCENTRATION (μg/L)TIMETIME VERSUS CONCENTRATION OF BENZENE, TOLUENE, ETHYLBENZENE,TOTAL XYLENES,  ISOPROPYL ETHER, AND NAPHTHALENE IN MW‐1BenzeneTolueneEthylbenzeneTotal XylenesIPENaphthaleneSystem Shut Down ‐February 2007MMPE Events:November 2012,April 2015, September 2015, and April 2016
05001,0001,5002,0002,5003,0003,500CONCENTRATION (μg/L)TIMETIME VERSUS CONCENTRATION OF BENZENE, TOLUENE, ETHYLBENZENE,TOTAL XYLENES,  ISOPROPYL ETHER, AND NAPHTHALENE IN MW‐7BenzeneTolueneEthylbenzeneTotal XylenesIPENaphthaleneSystem Shut Down ‐February 2007MMPE Events:November 2012,April 2015, September 2015 and April 2016
05,00010,00015,00020,00025,00030,00035,000CONCENTRATION (μg/L)TIMETIME VERSUS CONCENTRATION OF BENZENE, TOLUENE, ETHYLBENZENE,TOTAL XYLENES,  ISOPROPYL ETHER, AND NAPHTHALENE IN MW‐12BenzeneTolueneEthylbenzeneTotal XylenesIPENaphthaleneSystem Shut Down ‐February 2007MMPE Events:November 2012,April 2015, September 2015 and April 2016Diffuser Installation August 2016
010,00020,00030,00040,00050,00060,00070,00080,000CONCENTRATION (μg/L)TIMETIME VERSUS CONCENTRATION OF BENZENE, TOLUENE, ETHYLBENZENE,TOTAL XYLENES,  ISOPROPYL ETHER, AND NAPHTHALENE IN MW‐13BenzeneTolueneEthylbenzeneTotal XylenesIPENaphthaleneSystem Shut Down ‐February 2007Not sampled ‐Free ProductMMPE Events:November 2012,April 2015, September 2015 and April 2016Diffuser Installation August 2016
05101520253035404550CONCENTRATION (μg/L)TIMETIME VERSUS CONCENTRATION OF BENZENE, TOLUENE, ETHYLBENZENE,TOTAL XYLENES,  ISOPROPYL ETHER, AND NAPHTHALENE IN MW‐14BenzeneTolueneEthylbenzeneTotal XylenesIPENaphthaleneSystem Shut Down ‐February 2007MMPE Events:November 2012,April 2015, September 2015 and April 2016