DERR-2024-011013

July 2024 GROUNDWATER MONITORING REPORT
September 20, 2024

Facility No: Former Chevron Site No. 377352

Address: 1917 West 1700 South, Salt Lake City, Utah

Arcadis Contact Person / Phone No.: Jason Cristino / [phone]
Arcadis Project No.: 30064298
Primary Agency/Regulator/Regulatory ID No.:
State of Utah Division of Environmental Response and
Remediation (UT DERR)
Liberty Coe / Facility ID# 4002428/MKS

WORK CONDUCTED THIS Period [July 2024]:

1. Conducted post-well installation groundwater monitoring activities on July 8 through 10, 2024.
2. Prepared the July 2024 Groundwater Monitoring Report.

WORK PROPOSED NEXT:
.
1. Prepare Additional Subsurface Investigation and Monitoring Well Installation Work Plan (Work Plan).

Current Phase of Project: Site Assessment
Frequency of Monitoring / Sampling: Quarterly (On hold pending site delineation)
Are Light Non-Aqueous Phase Liquid
(LNAPL) Present On-site: Yes
Cumulative LNAPL Recovered to Date: 33.0 (gallons)
Approximate Depth to Groundwater: 4.61 (MW-6) to 9.09 (MW-12) (feet below
top of casing)
Approximate Groundwater Elevation: 4226.28 (MW-12) to
4227.66 (MW-4)
(feet relative to
corresponding
datum)
Groundwater Flow Direction Northwest
Groundwater Gradient 0.0035 (feet per foot)
Current Remediation Techniques: None
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377352 July 2024 GWMR
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Permits for Discharge: None
Summary of Unusual Activity: MW-11 and MW-14 had measurable LNAPL, which was not observed in
the previous groundwater monitoring event (November 2023).
Agency Directive Requirements: None

DISCUSSION
Groundwater sampling activities were conducted at the Former Chevron Site No. 377352 located at 1917
West 1700 South, Salt Lake City, Utah (Figure 1) on July 8-10, 2024. Fourteen (14) monitoring wells,
MW-1 through MW-14 (Figure 2) were gauged, and seven (7) monitoring wells were sampled.
Depth to groundwater measurements were collected on July 8, 2024, and ranged from 4.61 feet below top
of casing (btoc) (MW-6) to 9.09 btoc (MW-12), with groundwater elevations ranging from 4226.28 (MW-12)
to 4227.66 (MW-4). The 2021 groundwater sampling event interpreted a northwest flow with a gradient of
0.0035 feet per foot. Note that the groundwater elevation at wells with observed free product (i.e., light
non-aqueous phase liquid [LNAPL]), MW-1, MW-2, MW-9, MW-10, MW-11, MW-12 and MW-14 is
calculated assuming a specific gravity of 0.75.
LNAPL was observed in monitoring wells MW-1, MW-2, MW-9, MW-10, MW-11, MW-12 and MW-14.
Observed LNAPL thickness ranged from 0.07 feet at MW-9 to 2.47 feet at MW-12. A total of approximately
16.5 gallons of LNAPL was removed via bailing in seven of the site monitoring wells including MW-1 (2 gal.
removed), MW-2 (1 gal. removed), MW-9 (1 gal. removed), MW-10 (5 gal. removed), MW-11 (1 gal.
removed), MW-12 (5 gal. removed), and MW-14 (1.5 gal. removed). LNAPL gauging data is summarized
on Table 1.
Following gauging activities, the remaining seven monitoring wells (without observed LNAPL) were purged
and sampled using low-flow sampling methods until water levels and field parameters (pH, electrical
conductivity, dissolved oxygen, oxidation-reduction potential, and temperature) stabilized. Flow rates were
targeted to be 100 to 500 milliliters (mL) per minute using a peristaltic pump. Groundwater purging and
sampling was conducted by a Utah-Certified soil and groundwater sampler. Field parameters were recorded
in the field notes, and copies are included in Appendix A
Groundwater samples were collected using laboratory-provided containers. Groundwater samples were
labeled, placed in sealed Ziploc® bags, immediately placed on ice in a chilled cooler, and transported to
Pace Analytical National (Pace) located in Mount Juliet, TN (NELAP-certified) under chain-of-custody
procedures.
The samples were analyzed for the following constituents:
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377352 July 2024 GWMR
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 Total Petroleum Hydrocarbons – gasoline range organics (TPH-GRO) by United States
Environmental Protection Agency (USEPA) Method 8015D;
 Total Petroleum Hydrocarbons – diesel range organics (TPH-DRO) and TPH-DRO with silica gel
cleanup (SGC) by USEPA Method 8015/3511;
 Benzene, toluene, ethylbenzene, xylenes (BTEX) naphthalene, EDB, EDC, and Methyl Tertiary
Buty Ether (MTBE) by USEPA Method 8260B; and
 Oil and grease by USEPA Method 1664A.
 Total Organic Carbon by USEPA method 9060
Current gauging data and groundwater analytical results are summarized in Table 1 and presented on
Figure 4. Historical gauging and analytical data for the site are summarized in Table 2. The groundwater
elevation contours for the July 8, 2024, groundwater monitoring event are presented on Figure 3. The
groundwater analytical report and chain-of-custody documentation is provided in Appendix B.
Analytical results for the July 2024 groundwater monitoring event are summarized below and are
compared to the Division of Environmental Response and Remediation (DERR) Initial Screening Levels
(ISLs) and Risk-based Corrective Action Tier 1 Screening Levels (RBCA Tier 1 SLs) for groundwater.
The groundwater samples collected during the sampling event contained detectable concentrations of TPH-
GRO and TPH-DRO just above their respective ISL’s. The highest detected constituent concentrations
were observed in monitoring wells MW-4, MW-5, and MW-8 located in the central portion of the site near
the identified source areas. TPH-ORO, BTEX, and naphthalene, were detected at concentrations below the
ISL’s and in some cases are estimated values between the laboratory Method Detection Limit (MDL) and
Reported Detection Limit (RDL). Oil and grease, MTBE, EDB, and EDC were not detected, and the RDL
values were below the respective ISLs. Detected concentrations above regulatory screening levels are
summarized in Table 1 and presented on Figure 4. The following constituents were detected at
concentrations exceeding the ISLs:
 TPH-GRO was detected at concentrations just above the ISL of 1.0 milligrams per liter (mg/L) in
groundwater samples collected from MW-4 (1.75 mg/L [DUP 1.89 mg/L]) and MW-5 (1.07 mg/L).
 TPH-DRO was detected at concentrations above the ISL of 1.0 mg/L in the groundwater sample
collected from MW-8 (1.17 mg/L); however, was not detected above the ISL when ran with the
SGC indicating polar compounds and/or other carbon sources are contributing to the TPH-DRO
result.

CONCLUSIONS AND RECOMMENDATIONS

Constituent concentrations of TPH-GRO and TPH-DRO in groundwater appear to be decreasing or
consistent with historical concentrations. LNAPL was observed in monitoring wells MW-1, MW-2, MW-9,
MW-10, and MW-12 during the July 2024 event, which is consistent with the last groundwater event
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377352 July 2024 GWMR
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conducted in November 2023. In addition, two additional wells (MW-11 and MW-14) have measurable
LNAPL present. As such, the extent of contamination has not been defined to the west of MW-10 or to the
north of MW-14. Continued groundwater monitoring is not recommended until delineation is obtained.
Based on previous sampling of the wells containing LNAPL, dissolved phase concentrations were either
not detected, or not detected above ISLs and/or Tier 1 SLs, indicating the presence of LNAPL is the main
driver for delineation. A work plan summarizing planned additional delineation efforts will be prepared and
submitted in September 2024.
References
Arcadis. 2024. Additional Subsurface Investigation and Groundwater Monitoring Well Installation Report.
Former Chevron Site No. 377352, 1917 West 1700 South, Salt Lake City, Utah. March 28.
UT DERR. 2015. Guidelines for Utah's Corrective Action Process for Leaking Underground Storage Tank
Sites, March.

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377352 July 2024 GWMR
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LIMITATIONS
This report was prepared in accordance with the scope of work outlined in Arcadis’ contract and with
generally accepted professional engineering and environmental consulting practices existing at the time this
report was prepared and applicable to the location of the site. It was prepared for the exclusive use of
Chevron Environmental Management Company (CEMC), for the express purpose stated above. Any re-use
of this report for a different purpose or by others not identified above shall be at the user’s sole risk without
liability to Arcadis. To the extent that this report is based on information provided to Arcadis by third parties,
Arcadis may have made efforts to verify this third-party information, but Arcadis cannot guarantee the
completeness or accuracy of this information. The opinions expressed and data collected are based on the
conditions of the site existing at the time of the field investigation. No other warranties expressed or implied
are made by Arcadis.

Date: September 20, 2024
Jason Cristino
Project Manager

Date: September 20, 2024

Taura Nichols, P.E.
Utah PE License #8568538-2202
Certified Consultant No. CC-0247

ATTACHMENTS:

Table 1 Current Groundwater Analytical and Elevation Data
Table 2 Historical Groundwater Analytical and Elevation Data

Figure 1 Site Location Map
Figure 2 Site Plan
Figure 3 Groundwater Elevation Contour Map
Figure 4 Groundwater Analytical Results Map, July 2024

Appendix A Field Data Sheets and General Procedures
Appendix B Laboratory Report and Chain-of-Custody Documentation

TABLES
Table 1
Current Groundwater Gauging and Analytical Results - TPH and Volatile Organic Compounds
Chevron Site No. 377352
1917 West 1700 South Salt Lake City, Utah
TPH-GRO
(mg/L)
TPH-DRO
(mg/L)
TPH-DRO
w/SGT
(mg/L)
TPH-ORO
(mg/L)
OIL & GREASE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethylbenzene
(mg/L)
Total Xylenes
(mg/L)
MTBE
(mg/L)
Naph
(mg/L)
EDB
(mg/L)
EDC
(mg/L)
1 1 1 --10 0.005 1 0.7 10 0.2 0.7 ----
10 10 10 --10 0.300 3 4.0 10 0.2 0.7 ----
MW-1 7/8/2024 4233.95 8.61 6.73 1.88 4226.75 --------------------------
MW-2 7/8/2024 4234.00 8.28 6.55 1.73 4227.02 --------------------------
MW-3 7/10/2024 4233.86 6.43 ND ND 4227.43 0.233 0.397 0.302 <0.100 <5.88 <0.00500 <0.00500 <0.00500 <0.0150 <0.00500 <0.0250 <0.00500 <0.00500
MW-4 7/9/2024 4233.78 6.12 ND ND 4227.66 1.75 [1.89]0.908 [0.898]0.61 [0.528]<0.100 [<0.100]<5.68 [<5.32 ]<0.00500 [<0.00100 ]<0.00500 [<0.00100 ]0.0128 [0.0155]<0.0150 [0.000233 J]<0.00500 [<0.00100 ]<0.0250 [0.00213 J]<0.00500 [0.000273 J]<0.00500 [<0.00100]
MW-5 7/9/2024 4234.19 7.00 ND ND 4227.19 1.07 0.314 0.220 <0.100 <5.88 0.000744 J 0.00105 0.00463 0.000668 J <0.00100 0.00118 J <0.00100 <0.00100
MW-6 7/10/2024 4231.81 4.61 ND ND 4227.20 0.135 0.0866 J 0.0866 J 0.0488 J <5.88 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-7 7/10/2024 4234.32 7.02 ND ND 4227.30 0.104 0.0623 J 0.0623 J 0.0716 J <5.88 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-8 7/10/2024 4234.30 6.94 ND ND 4227.36 0.0649 J 1.17 0.384 0.0940 J <5.95 0.000915 J <0.00100 0.000849 J <0.00300 <0.00100 0.00951 <0.00100 <0.00100
MW-9 7/8/2024 4233.91 6.89 6.82 0.07 4227.08 --------------------------
MW-10 7/8/2024 4233.64 8.60 6.4 2.20 4226.69 --------------------------
MW-11 7/8/2024 4233.87 7.68 7.05 0.63 4226.66 --------------------------
MW-12 7/8/2024 4233.52 9.09 6.62 2.47 4226.28 --------------------------
MW-13 7/9/2024 4233.71 7.01 ND ND 4226.70 0.0334 J 0.399 0.0853 J <0.100 <5.68 J5 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-14 7/8/2024 4234.21 7.91 7.74 0.17 4226.43 --------------------------
Notes:
ID = Identification
MW = Groundwater monitoring well
TOC = Top of casing (surveyed to a relative datum; MW-1 = 4234 ft relative elevation)TPH-DRO = Total petroleum hydrocarbons, diesel range organics (C10-C28) by GC according to USEPA Method 8015
ft bTOC = Feet below top of casing TPH-ORO = Total petroleum hydrocarbons, oil range organics (C28-C40) by GC according to USEPA Method 8015
DTW = Depth to Water TPH - Oil & Grease = Total Petroleum hydrocarbons, oil & grease by Method 1664A
LNAPL = Light non-aqueous phase liquid Individual VOCs by USPEA Method 8260B
GWE = Calculated groundwater elevation MTBE = Methyl tertiary-butyl ether
Bold = Concentrations exceeds DERR ISL.Naph = Naphthalene
= Values Highlighted Grey Exceed Tier 1 SL.EDB = 1,2-Dibromoethane
mg/L = Milligrams per liter EDC = 1,2-Dichloroethane
< = Analyte was not detected above the specified reported detection limit (RDL)GWE = (TOC-DTW) + (Specific Gravity x LNAPL thickness), specific gravity was assumed to be 0.75
J5=The identification of the analyte is acceptable; the reported value is an estimate.SGT = Silica Gel Treatment
J = Estimated Value between the MDL and RDL 1 LNAPL thickness measurements of 0.00 indicate a sheen was observed, that was unmeasurable; a value of ND indicates no LNAPL was observed.
VOCs = Volatile Organic Compounds
ND = Not detected
[ ] = duplicate sample
TPH-GRO = Total petroleum hydrocarbons, gasoline range organics (C6-C12) by GC according to United States Environmental Protection Agency (USEPA)
Method 8260B/8260B/OA1
Tier 1 SL
DTW
(ft-btoc)
LNAPL
Thickness
(feet)1
Well ID GWE
(feet)Date TOC
(ft)
TPH and VOCsDepth to
LNAPL
(ft-btoc)
Utah DERR Initial Screening Level
Table 3 Arcadis Page 1 of 2
Table 2
Historical Groundwater Gauging and Analytical Results - TPH and Volatile Organic Compounds
Chevron Site No. 377352
1917 West 1700 South Salt Lake City, Utah
TPH-GRO
(mg/L)
TPH-DRO
(mg/L)
TPH-DRO
w/SGT
(mg/L)
TPH-ORO
(mg/L)
OIL & GREASE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethylbenzene
(mg/L)
Total Xylenes
(mg/L)
MTBE
(mg/L)
Naph
(mg/L)
EDB
(mg/L)
EDC
(mg/L)
1 1 1 --10 0.005 1 0.7 10 0.2 0.7 ----
10 10 10 --10 0.300 3 4.0 10 0.2 0.7 ----
MW-1 12/10/2020 4234.19 8.32 6.75 1.57 4227.05 --------------------------
MW-1 3/5/2021 4234.19 7.30 6.39 0.91 4227.57 --------------------------
MW-1 9/28/2021 4234.19 7.57 6.29 1.28 4227.58 --------------------------
MW-1 10/31/2023 4233.95 7.77 6.70 1.07 4226.98 0.283 5.88 4.83 0.155 B 5.24 J 0.00456 <0.00100 0.000499 J 0.000323 J <0.00100 0.0877 <0.00100 <0.00100
MW-1 7/8/2024 4233.95 8.61 6.73 1.88 4226.75 --------------------------
MW-2 12/10/2020 4234.15 6.72 ND NA 4227.43 0.634 1.37 --<0.100 1.700 J 0.0152 0.00122 0.00174 0.00108 J <0.001 0.0824 <0.001 <0.001
MW-2 3/5/2021 4234.15 6.18 ND NA 4227.97 0.838 [0.822]2.140 [2.260]--0.0764 J [0.0853 J]<5.56 [1.0 J]0.0124 [0.0121]0.00123 [0.00118]0.00202 [0.00191]0.00109 J [0.00106 J]<0.001 [<0.001]0.0892 [0.0949]<0.001 [<0.001]<0.001 [<0.001]
MW-2 9/28/2021 4234.15 6.13 ND NA 4228.02 --------------------------
MW-2 10/31/2023 4234.01 7.67 6.53 1.14 4227.19 0.363 1.3 0.720 0.224 B <5.68 0.00644 0.000372 J 0.000382 J <0.00300 <0.00100 0.0172 <0.00100 <0.00100
MW-2 7/8/2024 4234.00 8.28 6.55 1.73 4227.02 --------------------------
MW-3 12/10/2020 4234.09 5.94 ND NA 4228.15 <2.500 1 0.818 B --<0.100 <6.100 0.0148 <0.005 0.00155 J <0.015 <0.005 0.0772 <0.005 <0.005
MW-3 3/5/2021 4234.09 4.40 ND NA 4229.69 <2.500 1 1.080 --<0.100 <5.88 <0.005 <0.005 <0.005 <0.015 <0.005 <0.025 <0.005 <0.005
MW-3 9/28/2021 4234.09 4.19 ND NA 4229.90 --------------------------
MW-3 11/1/2023 4233.86 6.33 ND NA 4227.53 0.445 0.793 0.519 <0.1 <6.17 0.000535 J <0.00500 0.00179 J <0.0150 <0.00500 <0.0250 <0.00500 <0.00500
MW-3 7/10/2024 4233.86 6.43 ND NA 4227.43 0.233 0.397 0.302 <0.100 <5.88 <0.00500 <0.00500 <0.00500 <0.0150 <0.00500 <0.0250 <0.00500 <0.00500
MW-4 12/10/2020 4234.08 5.62 ND NA 4228.46 1.710 J 0.822 B --0.132 B <6.580 0.000893 J <0.005 0.00312 0.00102 J <0.005 0.0611 J <0.005 <0.005
MW-4 3/5/2021 4234.08 5.20 ND NA 4228.88 <2.500 1 1.37 --0.758 <5.56 0.000565 J <0.005 0.00772 <0.015 <0.005 0.00511 J <0.005 <0.005
MW-4 11/1/2023 4233.78 5.93 5.93 0.00 4227.85 2.2 0.704 0.447 B 0.0831 B J <6.17 0.000740 J <0.00500 0.0171 <0.0150 <0.00500 <0.0250 <0.00500 <0.00500
MW-4 7/9/2024 4233.78 6.12 ND NA 4227.66 1.75 [1.89]0.908 [0.898]0.61 [0.528]<0.100 [<0.100]<5.68 [<5.32]<0.00500 [<0.00100]<0.00500 [<0.00100]0.0128 [0.0155]<0.0150 [0.000233 J]<0.00500 [<0.00100]<0.0250 [0.00213 J]<0.00500 [0.000273 J]<0.00500 [<0.00100]
MW-4 (DUP)11/1/2023 ----------2.82 0.687 0.539 0.0531 B J <5.26 0.000571 J 0.000711 J 0.0191 0.000661 J <0.00100 0.00181 J <0.00100 <0.00100
MW-5 11/3/2023 4234.19 6.53 6.53 0.00 4227.66 1.57 0.625 0.304 0.131 <5.81 0.000487 J 0.000413 J 0.0174 0.00198 J <0.00100 0.00728 <0.00100 <0.00100
MW-5 7/9/2024 4234.19 7.00 ND NA 4227.19 1.07 0.314 0.220 <0.100 <5.88 0.000744 J 0.00105 0.00463 0.000668 J <0.00100 0.00118 J <0.00100 <0.00100
MW-6 11/2/2023 4231.81 4.53 4.53 0.00 4227.28 0.134 0.196 B 0.0350 BJ 0.22 B <5.88 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-6 7/10/2024 4231.81 4.61 ND NA 4227.20 0.135 0.0866 J 0.0866 J 0.0488 J <5.88 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-7 11/3/2023 4234.32 6.89 ND ND 4227.43 0.0901 J 0.157 0.546 J 0.0879 J <6.25 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 0.00122 J <0.00100 <0.00100
MW-7 7/10/2024 4234.32 7.02 ND NA 4227.30 0.104 0.0623 J 0.0623 J 0.0716 J <5.88 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-8 11/3/2023 4234.30 6.82 6.82 0.00 4227.48 0.1 J 2.35 0.561 0.557 <5.56 0.00121 <0.00100 0.00274 0.000204 J <0.00100 0.0161 <0.00100 <0.00100
MW-8 7/10/2024 4234.30 6.94 ND NA 4227.36 0.0649 J 1.17 0.384 0.0940 J <5.95 0.000915 J <0.00100 0.000849 J <0.00300 <0.00100 0.00951 <0.00100 <0.00100
MW-9 11/1/2023 4233.91 6.98 6.64 0.34 4227.19 0.11 1.96 1.12 0.214 B <6.10 0.000345 J <0.00100 <0.00100 <0.00300 <0.00100 0.0198 <0.00100 <0.00100
MW-9 7/8/2024 4233.91 6.89 6.82 0.07 4227.08 --------------------------
MW-10 10/31/2023 4233.64 7.02 6.40 0.62 4227.09 0.14 5.25 4.99 0.0841 B J 1.95 J 0.000543 J <0.00100 0.000717 J 0.000927 J <0.00100 0.058 <0.00100 <0.00100
MW-10 7/8/2024 4233.64 8.60 6.40 2.20 4226.69 --------------------------
MW-11 10/30/2023 4233.87 6.94 6.94 0.00 4226.93 0.108 2.38 1.51 0.257 B <5.56 0.00118 <0.00100 <0.00100 <0.00300 <0.00100 0.0136 <0.00100 <0.00100
MW-11 7/8/2024 4233.87 7.68 7.05 0.63 4226.66 --------------------------
MW-12 11/2/2023 4233.52 7.50 6.70 0.80 4226.02 0.119 2.02 1.49 0.33 B <5.56 0.00154 <0.00100 0.000288 J 0.000689 J <0.00100 0.048 <0.00100 <0.00100
MW-12 7/8/2024 4233.52 9.09 6.62 2.47 4226.28 --------------------------
MW-13 11/2/2023 4233.71 6.83 6.83 0.00 4226.88 0.0365 J 0.516 0.164 B 0.289 B <5.81 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-13 7/9/2024 4233.71 7.01 ND NA 4226.70 0.0334 J 0.399 0.0853 J <0.100 <5.68 J5 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-14 11/2/2023 4234.21 7.53 7.53 0.00 4226.68 0.0601 J 0.474 0.160 B 0.289 B <5.56 <0.00100 <0.00100 <0.00100 <0.00300 <0.00100 <0.00500 <0.00100 <0.00100
MW-14 7/8/2024 4234.21 7.91 7.74 0.17 4226.43 --------------------------
Notes:
ID = Identification TPH-GRO = Total petroleum hydrocarbons, gasoline range organics (C6-C12) by GC according to United States Environmental Protection Agency (USEPA) Method 8260B/OA1
MW = Groundwater monitoring well TPH-DRO = Total petroleum hydrocarbons, diesel range organics (C10-C28) by GC according to USEPA Method 8015
TOC = Top of casing (surveyed to a relative datum; MW-1 = 4234 ft relative elevation)TPH-ORO = Total petroleum hydrocarbons, oil range organics (C28-C40) by GC according to USEPA Method 8015
ft bTOC = Feet below top of casing TPH - Oil & Grease = Total Petroleum hydrocarbons, oil & grease by Method 1664A
DERR = Division of Environmental Response and Remediation Individual VOCs by USPEA Method 8260B/OA1
DTW = Depth to Water MTBE = Methyl tertiary-butyl ether
LNAPL = Light non-aqueous phase liquid Naph = Naphthalene
GWE = Calculated groundwater elevation EDB = 1,2-Dibromoethane
J = Estimated Value between the MDL and RDL EDC = 1,2-Dichloroethane
J5=The identification of the analyte is acceptable; the reported value is an estimate.
VOCs = Volatile Organic Compounds GWE = (TOC-DTW) + (Specific Gravity x LNAPL thickness), specific gravity was assumed to be 0.75
NA = Not applicable 1 TPH-GRO reportlng limits (RLs) were elevated in samples from MW-3 and MW-4 in both December 2020 and March 2021 due to dliution required during sample analysis. Method detection
ND = Not detected limit (MDL), however, was 0.540 mg/L, and any detections of TPH-GRO would have been reported as an estimated value (i.e., J-flagged) for detections between the MDL and RL.
Bold = Concentrations exceeds DERR ISL.SGT - Silica Gel Treatment
= Values Highlighted Grey Exceed Tier 1 SL.2 LNAPL thickness measurements of 0.00 indicate a sheen was observed, that was unmeasurable; a value of ND indicates no LNAPL was observed.
mg/L = Milligrams per liter
< = Analyte was not detected above the specified reported detection limit (RDL)
[ ] = duplicate sample
Tier 1 SL
GWE
(feet)
TPH and VOCs
Utah DERR Initial Screening Level
Well ID Date TOC
(ft)
DTW
(ft-btoc)
Depth to
LNAPL
(ft-btoc)
LNAPL
Thickness
(feet)2
Table 1 Arcadis Page 2 of 2

FIGURES

REFERENCE:BASE MAP USGS 7.5. MIN. TOPO. QUAD., SALT LAKE CITY SOUTH AND SALT LAKE CITY NORTH, UTAH, 2020
APPROXIMATE SCALE : 1 in. = 2,000 ft.
0 2,000'4,000'
N
SITE LOCATION MAP
CHEVRON SITE NO. 377352
1917 WEST 1700 SOUTH
SALT LAKE CITY, UTAH
SITE
LOCATION
UTAH
AREA
LOCATION
1
FIGURE
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© 2023 Microsoft Corporation © 2022 Maxar ©CNES (2022) Distribution Airbus DS
WA
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A
C
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R
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A
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1700 SOUTH
IN
D
U
S
T
R
I
A
L

R
O
A
D
IN
D
U
S
T
R
I
A
L

R
O
A
D
CHURCH
MW-2 MW-3MW-1
MW-4
B-1
B-2
B-3
MW-6
MW-5
MW-7MW-8
MW-9
MW-10
MW-12 MW-11
MW-14MW-13
SITE PLAN
LEGEND:
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:

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FORMER CHEVRON SITE NO. 377352
1917 WEST 1700 SOUTH
SALT LAKE CITY, UTAH
50'100'
APPROXIMATE SCALE : 1 in. = 50 ft.
0
MW-1
B-1
NOTE:
THIS DRAWING IS REFERENCED FROM THE FOLLOWING:
A.“FIGURE 2, SITE PLAN” , BY AECOM
DATED: DECEMBER 2019, SCALE: 1’’=100’
FIGURE
2
GROUNDWATER MONITORING WELL
FORMER DIRECT-PUSH BORING
LOCATION
FORMER ABOVEGROUND STORAGE TANK
FORMER CORNER SERVICE GAS STATION
BUILDING
FORMER UNDERGROUND STORAGE
TANKS/DISPENSER
APPROXIMATE LOCATION OF QUESTAR
GAS TEST PIT (8'W x 10'L x 6'D)
FORMER SECONDARY CONTAINMENT
AERIAL SOURCE:
©2023 MICROSOFT CORPORATION © 2022 MAXAR
©CNES (2022)
© 2023 Microsoft Corporation © 2022 Maxar ©CNES (2022) Distribution Airbus DS
WA
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1700 SOUTH
IN
D
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D
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CHURCH
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B-2
B-3
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5
F
T
/
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42
2
6
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4
0
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0
4227.20
42
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1.88
1.73
2.47
2.20
MW-2
(4227.02)MW-3
(4227.43)
MW-1
(4226.75)
MW-4
(4227.66)
MW-6
(4227.20)
MW-5
(4227.19)
MW-7
(4227.30)MW-8
(4227.36)
MW-9
(4227.08)
MW-10
(4226.69)
MW-11
(4226.66)
MW-14
(4226.43)
MW-13
(4226.70)
MW-12
(4226.28)
0.17
0.63
0.07
42
2
7
.
6
0
42
2
7
.
4
0
GROUNDWATER ELEVATION
CONTOUR MAP
JULY 8, 2024
CI
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N
FORMER CHEVRON SITE NO. 377352
1917 WEST 1700 SOUTH
SALT LAKE CITY, UTAH
50'100'
APPROXIMATE SCALE : 1 in. = 50 ft.
0
NOTE:
THIS DRAWING IS REFERENCED FROM THE FOLLOWING:
A.“FIGURE 2, SITE PLAN” , BY AECOM
DATED: DECEMBER 2019, SCALE: 1’’=100’
FIGURE
3
GROUNDWATER MONITORING WELL
FORMER DIRECT-PUSH BORING
LOCATION
FORMER ABOVEGROUND STORAGE TANK
FORMER CORNER SERVICE GAS STATION
BUILDING
FORMER UNDERGROUND STORAGE
TANKS/DISPENSER
APPROXIMATE LOCATION OF QUESTAR
GAS TEST PIT (8'W x 10'L x 6'D)
FORMER SECONDARY CONTAINMENT
GROUNDWATER ELEVATION CONTOUR
(DASHED WHERE INFERRED)
GROUNDWATER ELEVATION (FEET)
APPROXIMATE DIRECTION OF
GROUNDWATER FLOW
APPROXIMATE HYDRAULIC GRADIENT
(FEET/FOOT)
CALCULATED GROUNDWATER ELEVATION
GWE = (TOC - DTW) + (0.75 X LNAPL
THICKNESS)
LIGHT NON-AQUEOUS PHASE LIQUID
AERIAL SOURCE:
©2023 MICROSOFT CORPORATION © 2022 MAXAR
©CNES (2022)
(4227.43)
GW ELEV.
0.0035 FT/FT
0.34
LEGEND:
MW-1
B-1
4227.20
© 2023 Microsoft Corporation © 2022 Maxar ©CNES (2022) Distribution Airbus DS
WA
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1700 SOUTH
IN
D
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A
L

R
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A
D
IN
D
U
S
T
R
I
A
L

R
O
A
D
CHURCH
MW-2 MW-3MW-1
MW-4
B-1
B-2
B-3
MW-6
MW-5
MW-7MW-8
MW-9
MW-10
MW-12
MW-11
MW-14
MW-13
GROUNDWATER ANALYTICAL MAP
JULY 9-10, 2024
LEGEND:
CI
T
Y
:

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C
A

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:

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:

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:

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:

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.

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7
3
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2
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:
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:

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A
R
,

D
A
L
E
E
P
N
FORMER CHEVRON SITE NO. 377352
1917 WEST 1700 SOUTH
SALT LAKE CITY, UTAH
50'100'
APPROXIMATE SCALE : 1 in. = 50 ft.
0
NOTE:
1.THIS DRAWING IS REFERENCED FROM THE
FOLLOWING:
A.“FIGURE 2, SITE PLAN” , BY AECOM
DATED: DECEMBER 2019, SCALE: 1’’=100’
2. ALL VALUES REPORTED IN MILLIGRAMS PER
LITER (mg/L).
FIGURE
4
GROUNDWATER MONITORING WELL
FORMER DIRECT-PUSH BORING
LOCATION
FORMER ABOVEGROUND STORAGE
TANK
FORMER CORNER SERVICE GAS
STATION BUILDING
FORMER UNDERGROUND STORAGE
TANKS/DISPENSER
APPROXIMATE LOCATION OF QUESTAR
GAS TEST PIT (8'W x 10'L x 6'D)
FORMER SECONDARY CONTAINMENT
TOTAL PETROLEUM HYDROCARBONS AS
GASOLINE RANGE ORGANICS
TOTAL PETROLEUM HYDROCARBONS AS
DIESEL RANGE ORGANICS
TOTAL PETROLEUM HYDROCARBONS AS
DIESEL RANGE ORGANICS WITH SILICA
GEL TREATMENT
TOTAL PETROLEUM HYDROCARBONS AS
OIL RANGE ORGANICS
METHYL TERT-BUTYL ETHER
1,2-DIBROMOETHANE
1,2-DICHLOROETHANE
CONCENTRATIONS EXCEEDS DERR ISL
(DIVISION OF ENVIRONMENTAL
RESPONSE AND REMEDIATION INITIAL
SCREENING LEVEL)
ESTIMATED VALUE BETWEEN MDL AND
RDL
THE SAMPLE MATRIX INTERFERED WITH
THE ABILITY TO MAKE ANY ACCURATE
DETERMINATION; SPIKE VALUE IS HIGH
ANALYTE WAS NOT DETECTED ABOVE
THE SPECIFIED REPORTED DETECTION
LIMIT (RDL)
DUPLICATE SAMPLE
AERIAL SOURCE:
©2023 MICROSOFT CORPORATION © 2022 MAXAR
©CNES (2022)
TPH-GRO
TPH-DRO
TPH-ORO
MTBE
BOLD
J
EDB
EDC
MW-3
Date 7/10/2024
TPH-GRO 0.233
TPH-DRO 0.397
TPH-DRO w/SGT 0.302
TPH-ORO <0.100
OIL & GREASE <5.88
Benzene <0.00500
Toluene <0.00500
Ethylbenzene <0.00500
Total Xylenes <0.0150
MTBE <0.00500
EDB <0.00500
EDC <0.00500
Naphthalene <0.0250
MW-5
Date 7/9/2024
TPH-GRO 1.07
TPH-DRO 0.314
TPH-DRO w/SGT 0.220
TPH-ORO <0.100
OIL & GREASE <5.88
Benzene 0.000744 J
Toluene 0.00105
Ethylbenzene 0.00463
Total Xylenes 0.000668 J
MTBE <0.00100
EDB <0.00100
EDC <0.00100
Naphthalene 0.00118 J
MW-6
Date 7/10/2024
TPH-GRO 0.135
TPH-DRO 0.0866 J
TPH-DRO w/SGT 0.0866 J
TPH-ORO 0.0488 J
OIL & GREASE <5.88
Benzene <0.00100
Toluene <0.00100
Ethylbenzene <0.00100
Total Xylenes <0.00300
MTBE <0.00100
EDB <0.00100
EDC <0.00100
Naphthalene <0.00500
MW-7
Date 7/10/2024
TPH-GRO 0.104
TPH-DRO 0.0623 J
TPH-DRO w/SGT 0.0623 J
TPH-ORO 0.0716 J
OIL & GREASE <5.88
Benzene <0.00100
Toluene <0.00100
Ethylbenzene <0.00100
Total Xylenes <0.00300
MTBE <0.00100
EDB <0.00100
EDC <0.00100
Naphthalene <0.00500
MW-8
Date 7/10/2024
TPH-GRO 0.0649 J
TPH-DRO 1.17
TPH-DRO w/SGT 0.384
TPH-ORO 0.0940 J
OIL & GREASE <5.95
Benzene 0.000915 J
Toluene <0.00100
Ethylbenzene 0.000849 J
Total Xylenes <0.00300
MTBE <0.00100
EDB <0.00100
EDC <0.00100
Naphthalene 0.00951
MW-13
Date 7/9/2024
TPH-GRO 0.0334 J
TPH-DRO 0.399
TPH-DRO w/SGT 0.0853 J
TPH-ORO <0.100
OIL & GREASE <5.68 J5
Benzene <0.00100
Toluene <0.00100
Ethylbenzene <0.00100
Total Xylenes <0.00300
MTBE <0.00100
EDB <0.00100
EDC <0.00100
Naphthalene <0.00500
MW-4
Date 7/9/2024
TPH-GRO 1.75 [1.89]
TPH-DRO 0.908 [0.898]
TPH-DRO w/SGT 0.610 [0.528]
TPH-ORO <0.100 [<0.100]
OIL & GREASE <5.68 [<5.32]
Benzene <0.00500 [<0.00100]
Toluene <0.00500 [<0.00100]
Ethylbenzene 0.0128 [0.0155]
Total Xylenes <0.0150 [0.000233 J]
MTBE <0.00500 [<0.00100]
EDB <0.00500 [0.000273 J]
EDC <0.00500 [<0.00100]
Naphthalene <0.0250 [0.00213 J]
TPH-DRO w/ SGT
J5
<
[ ]
MW-1
B-1

ATTACHMENT A

Field Data Sheets and General Procedures
Well ID Date Static Water Level (ft
bmp)
Total Depth (ft bmp) PID Reading
(ppm)
MW-1 07/08/2024 8.61 19.94 128.1
MW-2 07/08/2024 8.28 20.80 356.2
MW-3 07/08/2024 6.43 18.46 2
MW-4 07/08/2024 6.12 17.66 177
MW-5 07/08/2024 7.00 20.09 161.9
MW-6 07/08/2024 4.61 19.06 2.2
MW-7 07/08/2024 7.02 20.01 0.06
MW-8 07/08/2024 6.94 21.07 21.4
MW-9 07/08/2024 6.89 19.85 248.1
MW-10 07/08/2024 8.60 25.00 257.9
MW-11 07/08/2024 7.68 20.02 176.1
MW-12 07/08/2024 9.09 19.76 164.9
MW-13 07/08/2024 7.01 20.61 1.1
MW-14 07/08/2024 7.91 20.04 233.3
Groundwater Gauging Log
Project Number 30064298
Client: Chevron
Site ID:377352
Site Location:Salt Lake City, Utah
Measuring Point:Top of Casing
Date(s):07/08/2024
Sampler(s):Bridger Cherry
Gauging Equipment:Water Level Meter
Gauging
Time
Depth to
Product (ft
LNAPL Removed
(gal)
12:31 6.73 2
11:56 6.55 1
11:44 ND --
15:29 ND --
11:22 ND --
09:51 ND --
11:09 ND --
10:58 ND --
14:56 6.82 1
13:40 6.4 5
15:45 7.05 1
09:31 6.62 5
ft-bmp = feet below measuring point ND = Not Detected PID = Photoionization Detector Reading
ppm = parts per million -- = Not Recorded
09:03 ND --
09:13 7.74 1.5
Time
10:23
10:28
10:33
10:38
10:43
Sample Information
Sample ID:MW-6-W-240710 Sample Time:10:50 Sample Depth (ft-bmp)
(e.g. pump intake):15
Analytes and Methods:See Chain-of-Custody.Depth to Water at Time of
Sampling 7.6
Well Casing Volume Conversion
Well diameter (in.) =
gallons per foot
1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47
1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65
0.03 20.80 5.2 Clear
Comments:None
100 7.6 8.00 1.65 3.4
0.05 20.90 7.7 Clear
100 7.49 7.98 1.64 1.9 0.03 20.90 6 Clear
100 7.4 7.99 1.67 0.37
0.10 21.00 8.2 Clear
100 7.25 7.99 1.71 0.38 0.05 20.90 8 Clear
100 7.03 7.98 1.76 0.54
Rate
(ml/min)
Depth to Water
(ft)
pH
(standard
units)
Conductivity
(mS/cm)
Turbidity
(NTU)
Dissolved Oxygen
(mg/L)
Temperature (°C)Redox
(mV)
Color
MW-6-W-240710 Purge
Equipment Peristaltic
Purge Start 10:18 Gallons Purged 0.85 Duplicate ID --Sample
Equipment
Peristaltic
Purge End 10:45 Total Purge
Time(h:m)
0:27
Sample Time 10:50 Well Volumes
Purged
0.44 Sample ID
11.85 Gallons in
Well 1.93
Water Quality Meter
Make/Model YSI Pro Plus Purge Method Low-Flow Collection Type Grab
Static Water
Level (ft-bmp)6.61 Total Depth (ft-bmp)18.46 Water
Column(ft)
Sampled by Bridger
Cherry
Measuring Point
Description Top of Casing Screen
Depth Interval (ft-bmp)5 to 20
Casing
Diameter
(in.)
2 Well Casing
Material
Site Location Salt Lake City, Utah Site ID 377352 Weather(°F)Clear
Chevron Groundwater Sampling Form
Project Number 30064298 Well ID MW-3 Date 7/10/2024
ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts
in. = inches NTU = Nephe
Time
13:17
13:22
13:27
13:32
15
Analytes and Methods:See Chain-of-Custody.Depth to Water at Time of
Sampling 8.84
Sample ID:MW-4-W-240709 Sample Time:13:40 Sample Depth (ft-bmp)
(e.g. pump intake):
Well diameter (in.) =
gallons per foot
1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47
1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65
Sample Information
Comments:None
Well Casing Volume Conversion
0.05 21.10 -91 Clear
100 8.71 7.47 4.22 14.3 0.05 21.00 -94.1 Clear
100 8.46 7.47 4.21 14.7
0.11 21.60 -76.3 Clear
100 7.98 7.47 4.19 15.7 0.06 21.50 -85.6 Clear
100 7.84 7.45 4.18 19.5
Rate
(ml/min)
Depth to Water
(ft)
pH
(standard
units)
Conductivity
(mS/cm)
Turbidity
(NTU)
Dissolved Oxygen
(mg/L)
Temperature (°C)Redox
(mV)
Color
MW-4-W-240709 Purge
Equipment Peristaltic
Purge Start 13:12 Gallons Purged 0.66 Duplicate ID DUP-01-W-
240709
Sample
Equipment
Peristaltic
Purge End 13:32 Total Purge
Time(h:m)
0:20
Sample Time 13:40 Well Volumes
Purged
0.35 Sample ID
11.52 Gallons in
Well 1.87
Water Quality Meter
Make/Model YSI ProDSS Purge Method Low-Flow Collection Type Grab
Static Water
Level (ft-bmp)6.14 Total Depth (ft-bmp)17.66 Water
Column(ft)
Sampled by Bridger
Cherry
Measuring Point
Description Top of Casing Screen
Depth Interval (ft-bmp)5 to 20
Casing
Diameter
(in.)
2 Well Casing
Material
Site Location Salt Lake City, Utah Site ID 377352 Weather(°F)Clear
Chevron Groundwater Sampling Form
Project Number 30064298 Well ID MW-4 Date 7/9/2024
ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts
in. = inches NTU = Nephe
Time
11:40
11:45
11:50
11:55
12:00
12:05
15
Analytes and Methods:See Chain-of-Custody.Depth to Water at Time of
Sampling 6.74
Sample ID:MW-5-W-240709 Sample Time:12:10 Sample Depth (ft-bmp)
(e.g. pump intake):
Well diameter (in.) =
gallons per foot
1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47
1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65
Sample Information
Comments:None
Well Casing Volume Conversion
0.03 19.90 -101.1 Clear
125 6.74 7.96 3.87 12.6 0.08 19.80 -102.2 Clear
125 6.74 7.97 3.86 13.8
0.13 19.90 -96.3 Clear
125 6.74 7.97 3.86 13.3 0.05 19.90 -98.5 Clear
125 6.74 7.98 3.86 15.6
0.38 20.80 -87.9 Clear
125 6.74 7.96 3.88 17.1 0.17 20.40 -91.2 Clear
100 6.74 7.94 3.89 18.0
Rate
(ml/min)
Depth to Water
(ft)
pH
(standard
units)
Conductivity
(mS/cm)
Turbidity
(NTU)
Dissolved Oxygen
(mg/L)
Temperature (°C)Redox
(mV)
Color
MW-5-W-240709 Purge
Equipment Peristaltic
Purge Start 11:30 Gallons Purged 1.25 Duplicate ID --Sample
Equipment
Peristaltic
Purge End 12:05 Total Purge
Time(h:m)
0:35
Sample Time 12:10 Well Volumes
Purged
0.58 Sample ID
13.39 Gallons in
Well 2.18
Water Quality Meter
Make/Model YSI Pro Plus Purge Method Low-Flow Collection Type Grab
Static Water
Level (ft-bmp)6.7 Total Depth (ft-bmp)20.09 Water
Column(ft)
Sampled by Bridger
Cherry
Measuring Point
Description Top of Casing Screen
Depth Interval (ft-bmp)5 to 20
Casing
Diameter
(in.)
2 Well Casing
Material
Site Location Salt Lake City, Utah Site ID 377352 Weather(°F)Clear
Chevron Groundwater Sampling Form
Project Number 30064298 Well ID MW-5 Date 7/9/2024
ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts
in. = inches NTU = Nephe
Time
08:37
08:42
08:47
08:52
08:57
09:02
09:07
09:12
09:17
09:22
09:27
09:32
15
Analytes and Methods:See Chain-of-Custody.Depth to Water at Time of
Sampling 4.72
Sample ID:MW-6-W-240710 Sample Time:09:40 Sample Depth (ft-bmp)
(e.g. pump intake):
Well diameter (in.) =
gallons per foot
1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47
1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65Sample Information
Comments:Turbidity meter failed. Readings of “9999” were entered to show downtime in record.
Well Casing Volume Conversion
0.01 19.70 -14 Clear
100 6.72 7.88 4.00 4.1 0.01 19.60 -13.1 Clear
100 6.72 7.88 4.00 4.1
0.04 19.70 -16.4 Clear
100 6.72 7.87 4.01 4.6 0.02 19.50 -16.1 Clear
100 6.72 7.87 4.00 6.0
0.08 19.70 -18.2 Clear
100 4.72 7.87 4.01 9999 0.06 19.70 -17.6 Clear
100 6.74 7.90 4.01 9999
0.24 20.40 -19.7 Clear
100 6.74 7.87 4.01 9999 0.21 20.20 -20.6 Clear
100 6.72 7.87 4.01 9999
0.34 20.40 -20 Clear
100 4.72 7.87 4.01 9999 0.29 20.30 -19.5 Clear
100 4.72 7.87 4.01 9999
0.32 20.40 -9 Clear
100 4.72 7.84 4.01 17.2 0.27 20.50 -17.3 Clear
100 4.71 7.86 4.02 20.6
Rate
(ml/min)
Depth to Water
(ft)
pH
(standard
units)
Conductivity
(mS/cm)
Turbidity
(NTU)
Dissolved Oxygen
(mg/L)
Temperature (°C)Redox
(mV)
Color
MW-6-W-240710 Purge
Equipment Peristaltic
Purge Start 08:32 Gallons Purged 1.98 Duplicate ID --Sample
Equipment
Peristaltic
Purge End 09:37 Total Purge
Time(h:m)
1:5
Sample Time 09:40 Well Volumes
Purged
0.85 Sample ID
14.35 Gallons in
Well 2.33
Water Quality Meter
Make/Model YSI ProDSS Purge Method Low-Flow Collection Type Grab
Static Water
Level (ft-bmp)4.71 Total Depth (ft-bmp)19.06 Water
Column(ft)
Sampled by Bridger
Cherry
Measuring Point
Description Top of Casing Screen
Depth Interval (ft-bmp)5 to 20
Casing
Diameter
(in.)
2 Well Casing
Material
Site Location Salt Lake City, Utah Site ID 377352 Weather(°F)Clear
Chevron Groundwater Sampling Form
Project Number 30064298 Well ID MW-6 Date 7/10/2024
ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts
in. = inches NTU = Nephe
Time
14:10
14:15
14:20
14:25
14:30
14:35
14:40
14:45
15
Analytes and Methods:See Chain-of-Custody.Depth to Water at Time of
Sampling 7.1
Sample ID:MW-7-W-240710 Sample Time:14:50 Sample Depth (ft-bmp)
(e.g. pump intake):
Well diameter (in.) =
gallons per foot
1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47
1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65
Sample Information
Comments:None
Well Casing Volume Conversion
0.00 22.60 34.8 Clear
200 7.1 7.60 5.27 0.27 0.00 22.50 33.2 Clear
125 7.11 7.60 5.33 0.68
0.02 22.50 37.4 Clear
125 7.11 7.60 5.38 2.2 0.00 22.80 36 Clear
100 7.1 7.60 5.52 3.6
0.06 22.90 39.3 Clear
100 7.09 7.61 5.66 5.5 0.04 22.90 39.3 Clear
100 7.09 7.64 5.88 11.5
0.12 23.40 29.5 Clear
100 7.09 7.62 6.27 22.2 0.11 23.00 37.2 Clear
100 7.09 7.71 8.71 38.7
Rate
(ml/min)
Depth to Water
(ft)
pH
(standard
units)
Conductivity
(mS/cm)
Turbidity
(NTU)
Dissolved Oxygen
(mg/L)
Temperature (°C)Redox
(mV)
Color
MW-7-W-240710 Purge
Equipment Peristaltic
Purge Start 14:06 Gallons Purged 1.59 Duplicate ID --Sample
Equipment
Peristaltic
Purge End 14:45 Total Purge
Time(h:m)
0:39
Sample Time 14:50 Well Volumes
Purged
0.75 Sample ID
12.97 Gallons in
Well 2.11
Water Quality Meter
Make/Model YSI Pro Plus Purge Method Low-Flow Collection Type Grab
Static Water
Level (ft-bmp)7.04 Total Depth (ft-bmp)20.01 Water
Column(ft)
Sampled by Bridger
Cherry
Measuring Point
Description Top of Casing Screen
Depth Interval (ft-bmp)5 to 20
Casing
Diameter
(in.)
2 Well Casing
Material
Site Location Salt Lake City, Utah Site ID 377352 Weather(°F)Clear
Chevron Groundwater Sampling Form
Project Number 30064298 Well ID MW-7 Date 7/10/2024
ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts
in. = inches NTU = Nephe
Time
12:05
12:10
12:15
12:20
12:25
12:30
12:35
12:40
12:45
12:50
12:55
13:00
15
Analytes and Methods:See Chain-of-Custody.Depth to Water at Time of
Sampling 7.12
Sample ID:MW-8-W-240710 Sample Time:13:05 Sample Depth (ft-bmp)
(e.g. pump intake):
Well diameter (in.) =
gallons per foot
1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47
1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65Sample Information
Comments:None
Well Casing Volume Conversion
0.47 22.40 -43.1 Clear
100 7.12 7.80 5.02 3.4 0.05 22.50 -45.5 Clear
100 7.11 7.84 5.07 2.5
0.13 22.30 -39.1 Clear
100 7.12 7.80 5.13 1.6 0.05 22.40 -42.3 Clear
100 7.1 7.80 5.30 3.5
0.12 23.50 -33.6 Clear
100 7.07 7.80 5.42 4.7 0.11 22.50 -34.7 Clear
100 7.04 7.81 5.59 4.3
0.08 23.90 -27.5 Clear
100 7.05 7.81 5.92 4.5 0.11 23.40 -31.6 Clear
100 7.06 7.82 6.87 6.4
2.62 23.50 -18.6 Clear
100 7.05 7.83 7.59 7.5 0.09 23.80 -21.1 Clear
100 7.04 7.86 8.02 13.6
2.95 23.30 -2.3 Clear
100 7.04 7.93 13.9 27.7 2.91 23.40 -7.8 Clear
100 7.04 7.93 13.1 31.4
Rate
(ml/min)
Depth to Water
(ft)
pH
(standard
units)
Conductivity
(mS/cm)
Turbidity
(NTU)
Dissolved Oxygen
(mg/L)
Temperature (°C)Redox
(mV)
Color
MW-8-W-240710 Purge
Equipment Peristaltic
Purge Start 12:00 Gallons Purged 1.59 Duplicate ID --Sample
Equipment
Peristaltic
Purge End 13:00 Total Purge
Time(h:m)
1:0
Sample Time 13:05 Well Volumes
Purged
0.69 Sample ID
14.13 Gallons in
Well 2.3
Water Quality Meter
Make/Model YSI Pro Plus Purge Method Low-Flow Collection Type Grab
Static Water
Level (ft-bmp)6.94 Total Depth (ft-bmp)21.07 Water
Column(ft)
Sampled by Bridger
Cherry
Measuring Point
Description Top of Casing Screen
Depth Interval (ft-bmp)5 to 20
Casing
Diameter
(in.)
2 Well Casing
Material
Site Location Salt Lake City, Utah Site ID 377352 Weather(°F)Clear
Chevron Groundwater Sampling Form
Project Number 30064298 Well ID MW-8 Date 7/10/2024
ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts
in. = inches NTU = Nephe
Time
08:55
09:00
09:05
09:10
09:15
09:20
09:25
09:30
09:35
09:40
09:45
09:50
09:55
Sample Information
Sample ID:MW-13-W-240709 Sample Time:10:00 Sample Depth (ft-bmp)
(e.g. pump intake):15
Analytes and Methods:See Chain-of-Custody.Depth to Water at Time of
Sampling 7.01
Well Casing Volume Conversion
Well diameter (in.) =
gallons per foot
1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47
1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65
0.02 20.90 -77.2 Clear
Comments:None
100 7.01 7.74 6.35 4.2
0.01 20.70 -84.3 Clear
100 7 7.74 6.36 4.3 0.03 20.90 -78.5 Clear
100 7 7.74 6.50 4.2
0.03 20.70 -89.8 Clear
100 7 7.65 6.65 3.9 0.02 20.70 -84.3 Clear
100 7 7.89 6.83 4.5
0.33 20.80 -108.1 Clear
100 7 7.76 7.14 5.0 0.06 20.70 -97.7 Clear
100 7 7.77 7.56 5.9
0.17 20.70 -136.2 Clear
100 7 7.79 8.15 8.0 0.11 20.70 -119.4 Clear
100 7 7.87 10.1 12.6
0.37 20.40 -142.3 Clear
100 6.99 7.93 10.7 16.7 0.50 20.60 -141.2 Clear
100 6.99 7.94 10.7 18.7
2.31 20.30 -144.7 Clear
100 6.99 7.94 10.7 13.8 0.06 20.50 -144.7 Clear
100 6.99 7.83 10.7 12.9
Rate
(ml/min)
Depth to Water
(ft)
pH
(standard
units)
Conductivity
(mS/cm)
Turbidity
(NTU)
Dissolved Oxygen
(mg/L)
Temperature (°C)Redox
(mV)
Color
MW-13-W-240709 Purge
Equipment Peristaltic
Purge Start 08:50 Gallons Purged 1.72 Duplicate ID --Sample
Equipment
Peristaltic
Purge End 09:55 Total Purge Time(h:m)1:5
Sample Time 10:00 Well Volumes Purged 0.78 Sample ID
13.62 Gallons in
Well 2.21
Water Quality Meter
Make/Model YSI ProDSS Purge Method Low-Flow Collection Type Grab
Static Water
Level (ft-bmp)6.99 Total Depth (ft-bmp)20.61 Water
Column(ft)
Sampled by Bridger
Cherry
Measuring Point
Description Top of Casing Screen
Depth Interval (ft-bmp)5 to 20 Casing
Diameter (in.)2 Well Casing
Material
Site Location Salt Lake City, Utah Site ID 377352 Weather(°F)Clear
Chevron Groundwater Sampling Form
Project Number 30064298 Well ID MW-13 Date 7/9/2024
ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts
in. = inches NTU = Nephe

ATTACHMENT B

Laboratory Report and Chain-of-Custody Documentation
ANALYTICAL REPORT
July 19, 2024
Arcadis - Chevron - UT
Sample Delivery Group:L1755364
Samples Received:07/11/2024
Project Number:30064298 07.21
Description:377352
Site:1917 WEST 1700 SOUTH, SLC
Report To:Lauren Lindham
10 Exchange Place
Suite 112
Salt Lake City, UT 84111
Entire Report Reviewed By:
July 19, 2024
[Preliminary Report]
Brian Ford
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be
reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace
Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and
ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided,
and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Arcadis - Chevron - UT 30064298 07.21 L1755364 07/19/24 19:09 1 of 23
July 23, 2024
Shane Gambill
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Arcadis - Chevron - UT 30064298 07.21 L1755364 07/23/24 09:38 1 of 23
TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 5
Sr: Sample Results 6
MW-13-W-240709 L1755364-01 6
MW-5-W-240709 L1755364-02 7
MW-4-W-240709 L1755364-03 8
EB-1-W-240709 L1755364-04 9
MW-6-W-240710 L1755364-05 10
MW-3-W-240710 L1755364-06 11
DUP-01-W-240709 L1755364-07 12
Qc: Quality Control Summary 13
Wet Chemistry by Method 1664A 13
Wet Chemistry by Method 9060A 14
Volatile Organic Compounds (GC) by Method 8015D/GRO 15
Volatile Organic Compounds (GC/MS) by Method 8260B 17
Semi-Volatile Organic Compounds (GC) by Method 8015D 18
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT 19
Gl: Glossary of Terms 20
Al: Accreditations & Locations 21
Sc: Sample Chain of Custody 22
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Arcadis - Chevron - UT 30064298 07.21 L1755364 07/19/24 19:09 2 of 23
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Arcadis - Chevron - UT 30064298 07.21 L1755364 07/23/24 09:38 2 of 23
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-13-W-240709 L1755364-01 GW BC/SM 07/09/24 10:00 07/11/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2325291 1 07/18/24 03:02 07/18/24 12:54 TJL Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2321237 1 07/12/24 19:12 07/12/24 19:12 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2323463 1 07/16/24 01:24 07/16/24 01:24 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2322736 1 07/14/24 15:48 07/14/24 15:48 DYW Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 10:08 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/18/24 21:53 JDG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-5-W-240709 L1755364-02 GW BC/SM 07/09/24 12:10 07/11/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2325291 1 07/18/24 03:02 07/18/24 12:54 TJL Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2321237 1 07/12/24 19:35 07/12/24 19:35 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2323463 1 07/16/24 01:46 07/16/24 01:46 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2322736 1 07/14/24 16:11 07/14/24 16:11 DYW Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 10:32 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/18/24 21:30 JDG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-4-W-240709 L1755364-03 GW BC/SM 07/09/24 13:40 07/11/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2325291 1 07/18/24 03:02 07/18/24 12:54 TJL Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2321237 1 07/12/24 19:56 07/12/24 19:56 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2323463 5 07/16/24 05:48 07/16/24 05:48 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2322736 5 07/14/24 20:39 07/14/24 20:39 DYW Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 10:57 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/19/24 00:07 JDG Mt. Juliet, TN
Collected by Collected date/time Received date/time
EB-1-W-240709 L1755364-04 GW BC/SM 07/09/24 15:30 07/11/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2325291 1 07/18/24 03:02 07/18/24 12:54 TJL Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2321237 1 07/12/24 20:13 07/12/24 20:13 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2323463 1 07/16/24 01:02 07/16/24 01:02 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2322736 1 07/14/24 13:56 07/14/24 13:56 DYW Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 11:21 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/18/24 11:21 TJD Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-6-W-240710 L1755364-05 GW BC/SM 07/10/24 09:40 07/11/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2325291 1 07/18/24 03:02 07/18/24 12:54 TJL Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2321237 1 07/12/24 20:33 07/12/24 20:33 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2323463 1 07/16/24 02:08 07/16/24 02:08 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2322736 1 07/14/24 16:33 07/14/24 16:33 DYW Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 11:46 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/18/24 11:46 TJD Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-3-W-240710 L1755364-06 GW BC/SM 07/10/24 10:50 07/11/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2325291 1 07/18/24 03:02 07/18/24 12:54 TJL Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2321237 1 07/12/24 20:56 07/12/24 20:56 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2323499 1 07/16/24 05:46 07/16/24 05:46 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2322736 5 07/14/24 21:02 07/14/24 21:02 DYW Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 12:09 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/18/24 22:15 JDG Mt. Juliet, TN
Collected by Collected date/time Received date/time
DUP-01-W-240709 L1755364-07 GW BC/SM 07/09/24 00:00 07/11/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2325291 1 07/18/24 03:02 07/18/24 12:54 TJL Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2321237 1 07/12/24 21:18 07/12/24 21:18 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2323499 1 07/16/24 06:08 07/16/24 06:08 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2322736 1 07/14/24 16:56 07/14/24 16:56 DYW Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 12:34 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/18/24 23:44 JDG Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Brian Ford
Project Manager
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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Shane Gambill
Project Manager
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SAMPLE RESULTS - 01
L1755364
MW-13-W-240709
Collected date/time: 07/09/24 10:00
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U J5 1.32 5.68 1 07/18/2024 12:54 WG2325291
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)4.13 0.102 1.00 1 07/12/2024 19:12 WG2321237
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction 0.0334 J 0.0314 0.100 1 07/16/2024 01:24 WG2323463
(S)
a,a,a-Trifluorotoluene(FID)100 78.0-120 07/16/2024 01:24 WG2323463
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.0000941 0.00100 1 07/14/2024 15:48 WG2322736
Toluene U 0.000278 0.00100 1 07/14/2024 15:48 WG2322736
Ethylbenzene U 0.000137 0.00100 1 07/14/2024 15:48 WG2322736
Total Xylenes U 0.000174 0.00300 1 07/14/2024 15:48 WG2322736
Methyl tert-butyl ether U 0.000101 0.00100 1 07/14/2024 15:48 WG2322736
1,2-Dichloroethane U 0.0000819 0.00100 1 07/14/2024 15:48 WG2322736
1,2-Dibromoethane U 0.000126 0.00100 1 07/14/2024 15:48 WG2322736
Naphthalene U 0.00100 0.00500 1 07/14/2024 15:48 WG2322736
(S) Toluene-d8 106 80.0-120 07/14/2024 15:48 WG2322736
(S) 4-Bromofluorobenzene 90.9 77.0-126 07/14/2024 15:48 WG2322736
(S) 1,2-Dichloroethane-d4 110 70.0-130 07/14/2024 15:48 WG2322736
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.399 0.0222 0.100 1 07/18/2024 10:08 WG2324939
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 10:08 WG2324939
(S) o-Terphenyl 90.0 52.0-156 07/18/2024 10:08 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.0853 J 0.0222 0.100 1 07/18/2024 21:53 WG2324943
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 21:53 WG2324943
(S) o-Terphenyl 70.5 52.0-156 07/18/2024 21:53 WG2324943
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 02
L1755364
MW-5-W-240709
Collected date/time: 07/09/24 12:10
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.36 5.88 1 07/18/2024 12:54 WG2325291
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)3.48 0.102 1.00 1 07/12/2024 19:35 WG2321237
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction 1.07 0.0314 0.100 1 07/16/2024 01:46 WG2323463
(S)
a,a,a-Trifluorotoluene(FID)103 78.0-120 07/16/2024 01:46 WG2323463
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene 0.000744 J 0.0000941 0.00100 1 07/14/2024 16:11 WG2322736
Toluene 0.00105 0.000278 0.00100 1 07/14/2024 16:11 WG2322736
Ethylbenzene 0.00463 0.000137 0.00100 1 07/14/2024 16:11 WG2322736
Total Xylenes 0.000668 J 0.000174 0.00300 1 07/14/2024 16:11 WG2322736
Methyl tert-butyl ether U 0.000101 0.00100 1 07/14/2024 16:11 WG2322736
1,2-Dichloroethane U 0.0000819 0.00100 1 07/14/2024 16:11 WG2322736
1,2-Dibromoethane U 0.000126 0.00100 1 07/14/2024 16:11 WG2322736
Naphthalene 0.00118 J 0.00100 0.00500 1 07/14/2024 16:11 WG2322736
(S) Toluene-d8 101 80.0-120 07/14/2024 16:11 WG2322736
(S) 4-Bromofluorobenzene 89.2 77.0-126 07/14/2024 16:11 WG2322736
(S) 1,2-Dichloroethane-d4 116 70.0-130 07/14/2024 16:11 WG2322736
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.314 0.0222 0.100 1 07/18/2024 10:32 WG2324939
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 10:32 WG2324939
(S) o-Terphenyl 90.0 52.0-156 07/18/2024 10:32 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.220 0.0222 0.100 1 07/18/2024 21:30 WG2324943
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 21:30 WG2324943
(S) o-Terphenyl 66.8 52.0-156 07/18/2024 21:30 WG2324943
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 03
L1755364
MW-4-W-240709
Collected date/time: 07/09/24 13:40
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.32 5.68 1 07/18/2024 12:54 WG2325291
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)4.73 0.102 1.00 1 07/12/2024 19:56 WG2321237
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction 1.75 0.157 0.500 5 07/16/2024 05:48 WG2323463
(S)
a,a,a-Trifluorotoluene(FID)96.3 78.0-120 07/16/2024 05:48 WG2323463
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.000471 0.00500 5 07/14/2024 20:39 WG2322736
Toluene U 0.00139 0.00500 5 07/14/2024 20:39 WG2322736
Ethylbenzene 0.0128 0.000685 0.00500 5 07/14/2024 20:39 WG2322736
Total Xylenes U 0.000870 0.0150 5 07/14/2024 20:39 WG2322736
Methyl tert-butyl ether U 0.000505 0.00500 5 07/14/2024 20:39 WG2322736
1,2-Dichloroethane U 0.000409 0.00500 5 07/14/2024 20:39 WG2322736
1,2-Dibromoethane U 0.000630 0.00500 5 07/14/2024 20:39 WG2322736
Naphthalene U 0.00500 0.0250 5 07/14/2024 20:39 WG2322736
(S) Toluene-d8 105 80.0-120 07/14/2024 20:39 WG2322736
(S) 4-Bromofluorobenzene 93.2 77.0-126 07/14/2024 20:39 WG2322736
(S) 1,2-Dichloroethane-d4 111 70.0-130 07/14/2024 20:39 WG2322736
Sample Narrative:
L1755364-03 WG2322736: Elevated RL due to foamy matrix.
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.908 0.0222 0.100 1 07/18/2024 10:57 WG2324939
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 10:57 WG2324939
(S) o-Terphenyl 84.2 52.0-156 07/18/2024 10:57 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.610 0.0222 0.100 1 07/19/2024 00:07 WG2324943
C28-C40 Oil Range U 0.0118 0.100 1 07/19/2024 00:07 WG2324943
(S) o-Terphenyl 83.2 52.0-156 07/19/2024 00:07 WG2324943
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 04
L1755364
EB-1-W-240709
Collected date/time: 07/09/24 15:30
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.36 5.88 1 07/18/2024 12:54 WG2325291
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)0.367 B J 0.102 1.00 1 07/12/2024 20:13 WG2321237
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction U 0.0314 0.100 1 07/16/2024 01:02 WG2323463
(S)
a,a,a-Trifluorotoluene(FID)100 78.0-120 07/16/2024 01:02 WG2323463
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.0000941 0.00100 1 07/14/2024 13:56 WG2322736
Toluene U 0.000278 0.00100 1 07/14/2024 13:56 WG2322736
Ethylbenzene U 0.000137 0.00100 1 07/14/2024 13:56 WG2322736
Total Xylenes U 0.000174 0.00300 1 07/14/2024 13:56 WG2322736
Methyl tert-butyl ether U 0.000101 0.00100 1 07/14/2024 13:56 WG2322736
1,2-Dichloroethane U 0.0000819 0.00100 1 07/14/2024 13:56 WG2322736
1,2-Dibromoethane U 0.000126 0.00100 1 07/14/2024 13:56 WG2322736
Naphthalene U 0.00100 0.00500 1 07/14/2024 13:56 WG2322736
(S) Toluene-d8 106 80.0-120 07/14/2024 13:56 WG2322736
(S) 4-Bromofluorobenzene 92.7 77.0-126 07/14/2024 13:56 WG2322736
(S) 1,2-Dichloroethane-d4 112 70.0-130 07/14/2024 13:56 WG2322736
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range U 0.0222 0.100 1 07/18/2024 11:21 WG2324939
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 11:21 WG2324939
(S) o-Terphenyl 89.5 52.0-156 07/18/2024 11:21 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range U 0.0222 0.100 1 07/18/2024 11:21 WG2324943
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 11:21 WG2324943
(S) o-Terphenyl 89.5 52.0-156 07/18/2024 11:21 WG2324943
Sample Narrative:
L1755364-04 WG2324943: Reporting from non-silica gel data due to non-detect to the RDL.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 05
L1755364
MW-6-W-240710
Collected date/time: 07/10/24 09:40
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.36 5.88 1 07/18/2024 12:54 WG2325291
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)3.74 0.102 1.00 1 07/12/2024 20:33 WG2321237
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction 0.135 0.0314 0.100 1 07/16/2024 02:08 WG2323463
(S)
a,a,a-Trifluorotoluene(FID)99.3 78.0-120 07/16/2024 02:08 WG2323463
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.0000941 0.00100 1 07/14/2024 16:33 WG2322736
Toluene U 0.000278 0.00100 1 07/14/2024 16:33 WG2322736
Ethylbenzene U 0.000137 0.00100 1 07/14/2024 16:33 WG2322736
Total Xylenes U 0.000174 0.00300 1 07/14/2024 16:33 WG2322736
Methyl tert-butyl ether U 0.000101 0.00100 1 07/14/2024 16:33 WG2322736
1,2-Dichloroethane U 0.0000819 0.00100 1 07/14/2024 16:33 WG2322736
1,2-Dibromoethane U 0.000126 0.00100 1 07/14/2024 16:33 WG2322736
Naphthalene U 0.00100 0.00500 1 07/14/2024 16:33 WG2322736
(S) Toluene-d8 103 80.0-120 07/14/2024 16:33 WG2322736
(S) 4-Bromofluorobenzene 89.6 77.0-126 07/14/2024 16:33 WG2322736
(S) 1,2-Dichloroethane-d4 107 70.0-130 07/14/2024 16:33 WG2322736
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.0866 J 0.0222 0.100 1 07/18/2024 11:46 WG2324939
C28-C40 Oil Range 0.0488 J 0.0118 0.100 1 07/18/2024 11:46 WG2324939
(S) o-Terphenyl 88.9 52.0-156 07/18/2024 11:46 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.0866 J 0.0222 0.100 1 07/18/2024 11:46 WG2324943
C28-C40 Oil Range 0.0488 J 0.0118 0.100 1 07/18/2024 11:46 WG2324943
(S) o-Terphenyl 88.9 52.0-156 07/18/2024 11:46 WG2324943
Sample Narrative:
L1755364-05 WG2324943: Reporting from non-silica gel data due to non-detect to the RDL.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE RESULTS - 06
L1755364
MW-3-W-240710
Collected date/time: 07/10/24 10:50
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.36 5.88 1 07/18/2024 12:54 WG2325291
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)2.29 0.102 1.00 1 07/12/2024 20:56 WG2321237
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction 0.233 0.0314 0.100 1 07/16/2024 05:46 WG2323499
(S)
a,a,a-Trifluorotoluene(FID)104 78.0-120 07/16/2024 05:46 WG2323499
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.000471 0.00500 5 07/14/2024 21:02 WG2322736
Toluene U 0.00139 0.00500 5 07/14/2024 21:02 WG2322736
Ethylbenzene U 0.000685 0.00500 5 07/14/2024 21:02 WG2322736
Total Xylenes U 0.000870 0.0150 5 07/14/2024 21:02 WG2322736
Methyl tert-butyl ether U 0.000505 0.00500 5 07/14/2024 21:02 WG2322736
1,2-Dichloroethane U 0.000409 0.00500 5 07/14/2024 21:02 WG2322736
1,2-Dibromoethane U 0.000630 0.00500 5 07/14/2024 21:02 WG2322736
Naphthalene U 0.00500 0.0250 5 07/14/2024 21:02 WG2322736
(S) Toluene-d8 105 80.0-120 07/14/2024 21:02 WG2322736
(S) 4-Bromofluorobenzene 92.1 77.0-126 07/14/2024 21:02 WG2322736
(S) 1,2-Dichloroethane-d4 113 70.0-130 07/14/2024 21:02 WG2322736
Sample Narrative:
L1755364-06 WG2322736: Elevated RL due to foamy matrix.
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.397 0.0222 0.100 1 07/18/2024 12:09 WG2324939
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 12:09 WG2324939
(S) o-Terphenyl 90.5 52.0-156 07/18/2024 12:09 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.302 0.0222 0.100 1 07/18/2024 22:15 WG2324943
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 22:15 WG2324943
(S) o-Terphenyl 86.3 52.0-156 07/18/2024 22:15 WG2324943
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 07
L1755364
DUP-01-W-240709
Collected date/time: 07/09/24 00:00
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.23 5.32 1 07/18/2024 12:54 WG2325291
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)4.95 0.102 1.00 1 07/12/2024 21:18 WG2321237
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction 1.89 0.0314 0.100 1 07/16/2024 06:08 WG2323499
(S)
a,a,a-Trifluorotoluene(FID)111 78.0-120 07/16/2024 06:08 WG2323499
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.0000941 0.00100 1 07/14/2024 16:56 WG2322736
Toluene U 0.000278 0.00100 1 07/14/2024 16:56 WG2322736
Ethylbenzene 0.0155 0.000137 0.00100 1 07/14/2024 16:56 WG2322736
Total Xylenes 0.000233 J 0.000174 0.00300 1 07/14/2024 16:56 WG2322736
Methyl tert-butyl ether U 0.000101 0.00100 1 07/14/2024 16:56 WG2322736
1,2-Dichloroethane U 0.0000819 0.00100 1 07/14/2024 16:56 WG2322736
1,2-Dibromoethane 0.000273 J 0.000126 0.00100 1 07/14/2024 16:56 WG2322736
Naphthalene 0.00213 J 0.00100 0.00500 1 07/14/2024 16:56 WG2322736
(S) Toluene-d8 98.8 80.0-120 07/14/2024 16:56 WG2322736
(S) 4-Bromofluorobenzene 86.3 77.0-126 07/14/2024 16:56 WG2322736
(S) 1,2-Dichloroethane-d4 124 70.0-130 07/14/2024 16:56 WG2322736
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.898 0.0222 0.100 1 07/18/2024 12:34 WG2324939
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 12:34 WG2324939
(S) o-Terphenyl 90.0 52.0-156 07/18/2024 12:34 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.528 0.0222 0.100 1 07/18/2024 23:44 WG2324943
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 23:44 WG2324943
(S) o-Terphenyl 80.0 52.0-156 07/18/2024 23:44 WG2324943
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2325291
Wet Chemistry by Method 1664A L1755364-01,02,03,04,05,06,07
Method Blank (MB)
(MB) R4095654-1 07/18/24 12:54
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Oil & Grease (Hexane Extr)U 1.16 5.00
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4095654-2 07/18/24 12:54 • (LCSD) R4095654-3 07/18/24 12:54
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l %%%%%
Oil & Grease (Hexane Extr)40.0 40.5 42.7 101 107 78.0-114 5.29 20
L1755364-01 Original Sample (OS) • Matrix Spike (MS)
(OS) L1755364-01 07/18/24 12:54 • (MS) R4095654-4 07/18/24 12:54
Spike Amount Original Result MS Result MS Rec.Dilution Rec. Limits MS Qualifier
Analyte mg/l mg/l mg/l %%
Oil & Grease (Hexane Extr)40.0 U 46.0 115 1 78.0-114 J5
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2321237
Wet Chemistry by Method 9060A L1755364-01,02,03,04,05,06,07
Method Blank (MB)
(MB) R4093555-2 07/12/24 10:58
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
TOC (Total Organic Carbon)0.140 J 0.102 1.00
L1753504-01 Original Sample (OS) • Duplicate (DUP)
(OS) L1753504-01 07/12/24 12:01 • (DUP) R4093555-3 07/12/24 12:21
Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD
Limits
Analyte mg/l mg/l %%
TOC (Total Organic Carbon)1.44 1.51 1 4.62 20
L1754880-01 Original Sample (OS) • Duplicate (DUP)
(OS) L1754880-01 07/12/24 17:12 • (DUP) R4093555-6 07/12/24 17:29
Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD
Limits
Analyte mg/l mg/l %%
TOC (Total Organic Carbon)1.10 1.18 1 7.09 20
Laboratory Control Sample (LCS)
(LCS) R4093555-1 07/12/24 10:41
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
TOC (Total Organic Carbon)25.0 23.3 93.2 85.0-115
L1754874-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1754874-03 07/12/24 14:59 • (MS) R4093555-4 07/12/24 15:21 • (MSD) R4093555-5 07/12/24 15:56
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
TOC (Total Organic Carbon)25.0 4.37 27.7 27.7 93.5 93.4 1 85.0-115 0.0721 20
L1754880-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1754880-02 07/12/24 17:49 • (MS) R4093555-7 07/12/24 18:11 • (MSD) R4093555-8 07/12/24 18:32
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
TOC (Total Organic Carbon)25.0 2.78 25.3 25.0 90.1 89.0 1 85.0-115 1.15 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2323463
Volatile Organic Compounds (GC) by Method 8015D/GRO L1755364-01,02,03,04,05
Method Blank (MB)
(MB) R4094186-2 07/15/24 21:19
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
TPH (GC/FID) Low Fraction U 0.0314 0.100
(S)
a,a,a-Trifluorotoluene(FID)100 78.0-120
Laboratory Control Sample (LCS)
(LCS) R4094186-1 07/15/24 20:36
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
TPH (GC/FID) Low Fraction 5.00 5.27 105 72.0-127
(S)
a,a,a-Trifluorotoluene(FID) 98.3 78.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2323499
Volatile Organic Compounds (GC) by Method 8015D/GRO L1755364-06,07
Method Blank (MB)
(MB) R4095383-3 07/16/24 02:22
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
TPH (GC/FID) Low Fraction U 0.0314 0.100
(S)
a,a,a-Trifluorotoluene(FID)104 78.0-120
Laboratory Control Sample (LCS)
(LCS) R4095383-1 07/15/24 23:59
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
TPH (GC/FID) Low Fraction 5.00 4.50 90.0 72.0-127
(S)
a,a,a-Trifluorotoluene(FID) 105 78.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2322736
Volatile Organic Compounds (GC/MS) by Method 8260B L1755364-01,02,03,04,05,06,07
Method Blank (MB)
(MB) R4095107-2 07/14/24 13:34
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Benzene U 0.0000941 0.00100
Toluene U 0.000278 0.00100
Ethylbenzene U 0.000137 0.00100
Total Xylenes U 0.000174 0.00300
Methyl tert-butyl ether U 0.000101 0.00100
1,2-Dichloroethane U 0.0000819 0.00100
1,2-Dibromoethane U 0.000126 0.00100
Naphthalene U 0.00100 0.00500
(S) Toluene-d8 105 80.0-120
(S) 4-Bromofluorobenzene 92.8 77.0-126
(S) 1,2-Dichloroethane-d4 113 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4095107-1 07/14/24 12:19
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
Benzene 0.00500 0.00590 118 70.0-123
Toluene 0.00500 0.00512 102 79.0-120
Ethylbenzene 0.00500 0.00520 104 79.0-123
Total Xylenes 0.0150 0.0147 98.0 79.0-123
Methyl tert-butyl ether 0.00500 0.00550 110 68.0-125
1,2-Dichloroethane 0.00500 0.00618 124 70.0-128
1,2-Dibromoethane 0.00500 0.00518 104 80.0-122
Naphthalene 0.00500 0.00453 90.6 54.0-135 J
(S) Toluene-d8 105 80.0-120
(S) 4-Bromofluorobenzene 94.1 77.0-126
(S) 1,2-Dichloroethane-d4 109 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015D L1755364-01,02,03,04,05,06,07
Method Blank (MB)
(MB) R4095679-1 07/18/24 08:14
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
C10-C28 Diesel Range U 0.0222 0.100
C28-C40 Oil Range U 0.0118 0.100
(S) o-Terphenyl 76.0 52.0-156
Laboratory Control Sample (LCS)
(LCS) R4095679-2 07/18/24 08:36
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
C10-C28 Diesel Range 1.50 1.33 88.7 50.0-150
(S) o-Terphenyl 81.0 52.0-156
L1756173-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1756173-01 07/18/24 15:51 • (MS) R4095679-3 07/18/24 16:15 • (MSD) R4095679-4 07/18/24 16:39
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
C10-C28 Diesel Range 1.43 U 1.24 1.21 86.7 84.6 1 50.0-150 2.45 20
(S) o-Terphenyl 123 121 52.0-156
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2324943
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT L1755364-01,02,03,04,05,06,07
Method Blank (MB)
(MB) R4095677-1 07/18/24 08:58
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
C10-C28 Diesel Range U 0.0222 0.100
C28-C40 Oil Range U 0.0118 0.100
(S) o-Terphenyl 75.5 52.0-156
Laboratory Control Sample (LCS)
(LCS) R4095677-2 07/18/24 09:22
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
C10-C28 Diesel Range 1.50 1.28 85.3 50.0-150
(S) o-Terphenyl 78.5 52.0-156
L1756173-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1756173-01 07/18/24 15:51 • (MS) R4095677-3 07/18/24 16:15 • (MSD) R4095677-4 07/18/24 16:39
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
C10-C28 Diesel Range 1.43 U 1.24 1.21 86.7 84.6 1 50.0-150 2.45 20
(S) o-Terphenyl 123 121 52.0-156
Sample Narrative:
OS: Reporting from non-silica gel data due to non-detect to the RDL.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control
sample. The Original Sample may not be included within the reported SDG.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
B The same analyte is found in the associated blank.
J The identification of the analyte is acceptable; the reported value is an estimate.
J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
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Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶KY90010 South Carolina 84004002
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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ANALYTICAL REPORT
July 23, 2024
Arcadis - Chevron - UT
Sample Delivery Group:L1756101
Samples Received:07/12/2024
Project Number:30064298 07.21
Description:377352
Site:1917 WEST 1700 SOUTH, SLC
Report To:Lauren Lindham
10 Exchange Place
Suite 112
Salt Lake City, UT 84111
Entire Report Reviewed By:
July 23, 2024
[Preliminary Report]
Brian Ford
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be
reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace
Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and
ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided,
and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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July 23, 2024
Brian Ford
Project Manager
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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
MW-8-W-240710 L1756101-01 5
MW-7-W-240710 L1756101-02 6
EB-2-W-240710 L1756101-03 7
TRIP BLANK-W-240710 L1756101-05 8
Qc: Quality Control Summary 9
Wet Chemistry by Method 1664A 9
Wet Chemistry by Method 9060A 10
Volatile Organic Compounds (GC) by Method 8015D/GRO 11
Volatile Organic Compounds (GC/MS) by Method 8260B 12
Semi-Volatile Organic Compounds (GC) by Method 8015D 14
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT 15
Gl: Glossary of Terms 16
Al: Accreditations & Locations 17
Sc: Sample Chain of Custody 18
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-8-W-240710 L1756101-01 GW 07/10/24 13:05 07/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2326106 1 07/19/24 07:32 07/19/24 15:00 MAB Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2322973 1 07/16/24 07:31 07/16/24 07:31 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2324750 1 07/17/24 15:05 07/17/24 15:05 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2323652 1 07/16/24 13:25 07/16/24 13:25 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 13:23 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/19/24 00:29 JDG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-7-W-240710 L1756101-02 GW 07/10/24 14:50 07/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2326106 1 07/19/24 07:32 07/19/24 15:00 MAB Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2322973 1 07/16/24 07:51 07/16/24 07:51 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2324750 1 07/17/24 15:28 07/17/24 15:28 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2323652 1 07/16/24 13:45 07/16/24 13:45 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 13:48 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/18/24 13:48 TJD Mt. Juliet, TN
Collected by Collected date/time Received date/time
EB-2-W-240710 L1756101-03 GW 07/10/24 15:50 07/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Wet Chemistry by Method 1664A WG2326106 1 07/19/24 07:32 07/19/24 15:00 MAB Mt. Juliet, TN
Wet Chemistry by Method 9060A WG2322973 1 07/16/24 08:08 07/16/24 08:08 ASH Mt. Juliet, TN
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2324750 1 07/17/24 12:25 07/17/24 12:25 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2323652 1 07/16/24 12:04 07/16/24 12:04 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015D WG2324939 1 07/17/24 18:46 07/18/24 14:12 TJD Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT WG2324943 1 07/17/24 18:47 07/18/24 14:12 TJD Mt. Juliet, TN
Collected by Collected date/time Received date/time
TRIP BLANK-W-240710 L1756101-05 GW 07/10/24 00:00 07/12/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 8260B WG2326750 1 07/20/24 02:06 07/20/24 02:06 ACG Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Brian Ford
Project Manager
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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Brian Ford
Project Manager
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SAMPLE RESULTS - 01
L1756101
MW-8-W-240710
Collected date/time: 07/10/24 13:05
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.38 5.95 1 07/19/2024 15:00 WG2326106
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)6.41 0.102 1.00 1 07/16/2024 07:31 WG2322973
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction 0.0649 J 0.0314 0.100 1 07/17/2024 15:05 WG2324750
(S)
a,a,a-Trifluorotoluene(FID)103 78.0-120 07/17/2024 15:05 WG2324750
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene 0.000915 J 0.0000941 0.00100 1 07/16/2024 13:25 WG2323652
Toluene U 0.000278 0.00100 1 07/16/2024 13:25 WG2323652
Ethylbenzene 0.000849 J 0.000137 0.00100 1 07/16/2024 13:25 WG2323652
Total Xylenes U 0.000174 0.00300 1 07/16/2024 13:25 WG2323652
Methyl tert-butyl ether U 0.000101 0.00100 1 07/16/2024 13:25 WG2323652
1,2-Dichloroethane U 0.0000819 0.00100 1 07/16/2024 13:25 WG2323652
1,2-Dibromoethane U 0.000126 0.00100 1 07/16/2024 13:25 WG2323652
Naphthalene 0.00951 0.00100 0.00500 1 07/16/2024 13:25 WG2323652
(S) Toluene-d8 104 80.0-120 07/16/2024 13:25 WG2323652
(S) 4-Bromofluorobenzene 95.5 77.0-126 07/16/2024 13:25 WG2323652
(S) 1,2-Dichloroethane-d4 109 70.0-130 07/16/2024 13:25 WG2323652
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 1.17 0.0222 0.100 1 07/18/2024 13:23 WG2324939
C28-C40 Oil Range 0.0940 J 0.0118 0.100 1 07/18/2024 13:23 WG2324939
(S) o-Terphenyl 94.2 52.0-156 07/18/2024 13:23 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.384 0.0222 0.100 1 07/19/2024 00:29 WG2324943
C28-C40 Oil Range U 0.0118 0.100 1 07/19/2024 00:29 WG2324943
(S) o-Terphenyl 82.6 52.0-156 07/19/2024 00:29 WG2324943
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 02
L1756101
MW-7-W-240710
Collected date/time: 07/10/24 14:50
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.36 5.88 1 07/19/2024 15:00 WG2326106
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)2.75 0.102 1.00 1 07/16/2024 07:51 WG2322973
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction 0.104 0.0314 0.100 1 07/17/2024 15:28 WG2324750
(S)
a,a,a-Trifluorotoluene(FID)104 78.0-120 07/17/2024 15:28 WG2324750
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.0000941 0.00100 1 07/16/2024 13:45 WG2323652
Toluene U 0.000278 0.00100 1 07/16/2024 13:45 WG2323652
Ethylbenzene U 0.000137 0.00100 1 07/16/2024 13:45 WG2323652
Total Xylenes U 0.000174 0.00300 1 07/16/2024 13:45 WG2323652
Methyl tert-butyl ether U 0.000101 0.00100 1 07/16/2024 13:45 WG2323652
1,2-Dichloroethane U 0.0000819 0.00100 1 07/16/2024 13:45 WG2323652
1,2-Dibromoethane U 0.000126 0.00100 1 07/16/2024 13:45 WG2323652
Naphthalene U 0.00100 0.00500 1 07/16/2024 13:45 WG2323652
(S) Toluene-d8 106 80.0-120 07/16/2024 13:45 WG2323652
(S) 4-Bromofluorobenzene 102 77.0-126 07/16/2024 13:45 WG2323652
(S) 1,2-Dichloroethane-d4 106 70.0-130 07/16/2024 13:45 WG2323652
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.0623 J 0.0222 0.100 1 07/18/2024 13:48 WG2324939
C28-C40 Oil Range 0.0716 J 0.0118 0.100 1 07/18/2024 13:48 WG2324939
(S) o-Terphenyl 86.8 52.0-156 07/18/2024 13:48 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range 0.0623 J 0.0222 0.100 1 07/18/2024 13:48 WG2324943
C28-C40 Oil Range 0.0716 J 0.0118 0.100 1 07/18/2024 13:48 WG2324943
(S) o-Terphenyl 86.8 52.0-156 07/18/2024 13:48 WG2324943
Sample Narrative:
L1756101-02 WG2324943: Reporting from non-silica gel data due to non-detect to the RDL.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 03
L1756101
EB-2-W-240710
Collected date/time: 07/10/24 15:50
Wet Chemistry by Method 1664A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Oil & Grease (Hexane Extr)U 1.36 5.88 1 07/19/2024 15:00 WG2326106
Wet Chemistry by Method 9060A
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TOC (Total Organic Carbon)0.204 B J 0.102 1.00 1 07/16/2024 08:08 WG2322973
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
TPH (GC/FID) Low Fraction U 0.0314 0.100 1 07/17/2024 12:25 WG2324750
(S)
a,a,a-Trifluorotoluene(FID)105 78.0-120 07/17/2024 12:25 WG2324750
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.0000941 0.00100 1 07/16/2024 12:04 WG2323652
Toluene U 0.000278 0.00100 1 07/16/2024 12:04 WG2323652
Ethylbenzene U 0.000137 0.00100 1 07/16/2024 12:04 WG2323652
Total Xylenes U 0.000174 0.00300 1 07/16/2024 12:04 WG2323652
Methyl tert-butyl ether U 0.000101 0.00100 1 07/16/2024 12:04 WG2323652
1,2-Dichloroethane U 0.0000819 0.00100 1 07/16/2024 12:04 WG2323652
1,2-Dibromoethane U 0.000126 0.00100 1 07/16/2024 12:04 WG2323652
Naphthalene U 0.00100 0.00500 1 07/16/2024 12:04 WG2323652
(S) Toluene-d8 109 80.0-120 07/16/2024 12:04 WG2323652
(S) 4-Bromofluorobenzene 99.0 77.0-126 07/16/2024 12:04 WG2323652
(S) 1,2-Dichloroethane-d4 107 70.0-130 07/16/2024 12:04 WG2323652
Semi-Volatile Organic Compounds (GC) by Method 8015D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range U 0.0222 0.100 1 07/18/2024 14:12 WG2324939
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 14:12 WG2324939
(S) o-Terphenyl 86.8 52.0-156 07/18/2024 14:12 WG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
C10-C28 Diesel Range U 0.0222 0.100 1 07/18/2024 14:12 WG2324943
C28-C40 Oil Range U 0.0118 0.100 1 07/18/2024 14:12 WG2324943
(S) o-Terphenyl 86.8 52.0-156 07/18/2024 14:12 WG2324943
Sample Narrative:
L1756101-03 WG2324943: Reporting from non-silica gel data due to non-detect to the RDL.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 05
L1756101
TRIP BLANK-W-240710
Collected date/time: 07/10/24 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Benzene U 0.0000941 0.00100 1 07/20/2024 02:06 WG2326750
Toluene U 0.000278 0.00100 1 07/20/2024 02:06 WG2326750
Ethylbenzene U 0.000137 0.00100 1 07/20/2024 02:06 WG2326750
Total Xylenes U 0.000174 0.00300 1 07/20/2024 02:06 WG2326750
Methyl tert-butyl ether U 0.000101 0.00100 1 07/20/2024 02:06 WG2326750
1,2-Dichloroethane U 0.0000819 0.00100 1 07/20/2024 02:06 WG2326750
1,2-Dibromoethane U 0.000126 0.00100 1 07/20/2024 02:06 WG2326750
Naphthalene U 0.00100 0.00500 1 07/20/2024 02:06 WG2326750
(S) Toluene-d8 106 80.0-120 07/20/2024 02:06 WG2326750
(S) 4-Bromofluorobenzene 97.9 77.0-126 07/20/2024 02:06 WG2326750
(S) 1,2-Dichloroethane-d4 109 70.0-130 07/20/2024 02:06 WG2326750
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2326106
Wet Chemistry by Method 1664A L1756101-01,02,03
Method Blank (MB)
(MB) R4096095-1 07/19/24 15:00
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Oil & Grease (Hexane Extr)U 1.16 5.00
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4096095-2 07/19/24 15:00 • (LCSD) R4096095-3 07/19/24 15:00
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l %%%%%
Oil & Grease (Hexane Extr)40.0 37.7 36.2 94.3 90.5 78.0-114 4.06 20
L1754693-04 Original Sample (OS) • Matrix Spike (MS)
(OS) L1754693-04 07/19/24 15:00 • (MS) R4096095-4 07/19/24 15:00
Spike Amount Original Result MS Result MS Rec.Dilution Rec. Limits MS Qualifier
Analyte mg/l mg/l mg/l %%
Oil & Grease (Hexane Extr)40.0 U 40.6 101 1 78.0-114
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2322973
Wet Chemistry by Method 9060A L1756101-01,02,03
Method Blank (MB)
(MB) R4094191-2 07/15/24 22:13
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
TOC (Total Organic Carbon)0.246 J 0.102 1.00
L1755004-21 Original Sample (OS) • Duplicate (DUP)
(OS) L1755004-21 07/16/24 00:44 • (DUP) R4094191-3 07/16/24 01:01
Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD
Limits
Analyte mg/l mg/l %%
TOC (Total Organic Carbon)2.08 1.81 1 13.9 20
L1756021-06 Original Sample (OS) • Duplicate (DUP)
(OS) L1756021-06 07/16/24 05:16 • (DUP) R4094191-6 07/16/24 05:37
Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD
Limits
Analyte mg/l mg/l %%
TOC (Total Organic Carbon)3.83 3.79 1 0.997 20
Laboratory Control Sample (LCS)
(LCS) R4094191-1 07/15/24 21:56
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
TOC (Total Organic Carbon)25.0 24.5 97.9 85.0-115
L1755004-22 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1755004-22 07/16/24 01:20 • (MS) R4094191-4 07/16/24 01:42 • (MSD) R4094191-5 07/16/24 02:03
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
TOC (Total Organic Carbon)25.0 1.70 25.5 25.3 95.3 94.5 1 85.0-115 0.865 20
L1756021-15 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1756021-15 07/16/24 05:53 • (MS) R4094191-7 07/16/24 06:15 • (MSD) R4094191-8 07/16/24 06:37
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
TOC (Total Organic Carbon)25.0 1.69 25.8 25.9 96.3 96.9 1 85.0-115 0.581 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2324750
Volatile Organic Compounds (GC) by Method 8015D/GRO L1756101-01,02,03
Method Blank (MB)
(MB) R4095163-3 07/17/24 11:46
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
TPH (GC/FID) Low Fraction U 0.0314 0.100
(S)
a,a,a-Trifluorotoluene(FID)106 78.0-120
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4095163-1 07/17/24 10:38 • (LCSD) R4095163-2 07/17/24 11:01
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l %%%%%
TPH (GC/FID) Low Fraction 5.00 4.60 4.59 92.0 91.8 72.0-127 0.218 20
(S)
a,a,a-Trifluorotoluene(FID) 107 109 78.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2323652
Volatile Organic Compounds (GC/MS) by Method 8260B L1756101-01,02,03
Method Blank (MB)
(MB) R4094984-2 07/16/24 10:26
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Benzene U 0.0000941 0.00100
Toluene U 0.000278 0.00100
Ethylbenzene U 0.000137 0.00100
Total Xylenes U 0.000174 0.00300
Methyl tert-butyl ether U 0.000101 0.00100
1,2-Dichloroethane U 0.0000819 0.00100
1,2-Dibromoethane U 0.000126 0.00100
Naphthalene U 0.00100 0.00500
(S) Toluene-d8 108 80.0-120
(S) 4-Bromofluorobenzene 102 77.0-126
(S) 1,2-Dichloroethane-d4 103 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4094984-1 07/16/24 09:26
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
Benzene 0.00500 0.00489 97.8 70.0-123
Toluene 0.00500 0.00484 96.8 79.0-120
Ethylbenzene 0.00500 0.00496 99.2 79.0-123
Total Xylenes 0.0150 0.0150 100 79.0-123
Methyl tert-butyl ether 0.00500 0.00506 101 68.0-125
1,2-Dichloroethane 0.00500 0.00489 97.8 70.0-128
1,2-Dibromoethane 0.00500 0.00500 100 80.0-122
Naphthalene 0.00500 0.00414 82.8 54.0-135 J
(S) Toluene-d8 101 80.0-120
(S) 4-Bromofluorobenzene 97.1 77.0-126
(S) 1,2-Dichloroethane-d4 105 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2326750
Volatile Organic Compounds (GC/MS) by Method 8260B L1756101-05
Method Blank (MB)
(MB) R4097116-3 07/19/24 23:18
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Benzene U 0.0000941 0.00100
Toluene U 0.000278 0.00100
Ethylbenzene U 0.000137 0.00100
Total Xylenes U 0.000174 0.00300
Methyl tert-butyl ether U 0.000101 0.00100
1,2-Dichloroethane U 0.0000819 0.00100
1,2-Dibromoethane U 0.000126 0.00100
Naphthalene U 0.00100 0.00500
(S) Toluene-d8 106 80.0-120
(S) 4-Bromofluorobenzene 95.6 77.0-126
(S) 1,2-Dichloroethane-d4 110 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4097116-1 07/19/24 22:14 • (LCSD) R4097116-2 07/19/24 22:35
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l %%%%%
Benzene 0.00500 0.00479 0.00438 95.8 87.6 70.0-123 8.94 20
Toluene 0.00500 0.00512 0.00480 102 96.0 79.0-120 6.45 20
Ethylbenzene 0.00500 0.00475 0.00464 95.0 92.8 79.0-123 2.34 20
Total Xylenes 0.0150 0.0143 0.0135 95.3 90.0 79.0-123 5.76 20
Methyl tert-butyl ether 0.00500 0.00459 0.00460 91.8 92.0 68.0-125 0.218 20
1,2-Dichloroethane 0.00500 0.00546 0.00529 109 106 70.0-128 3.16 20
1,2-Dibromoethane 0.00500 0.00500 0.00470 100 94.0 80.0-122 6.19 20
Naphthalene 0.00500 0.00360 0.00376 72.0 75.2 54.0-135 J J 4.35 20
(S) Toluene-d8 106 105 80.0-120
(S) 4-Bromofluorobenzene 100 101 77.0-126
(S) 1,2-Dichloroethane-d4 112 112 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2324939
Semi-Volatile Organic Compounds (GC) by Method 8015D L1756101-01,02,03
Method Blank (MB)
(MB) R4095679-1 07/18/24 08:14
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
C10-C28 Diesel Range U 0.0222 0.100
C28-C40 Oil Range U 0.0118 0.100
(S) o-Terphenyl 76.0 52.0-156
Laboratory Control Sample (LCS)
(LCS) R4095679-2 07/18/24 08:36
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
C10-C28 Diesel Range 1.50 1.33 88.7 50.0-150
(S) o-Terphenyl 81.0 52.0-156
L1756173-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1756173-01 07/18/24 15:51 • (MS) R4095679-3 07/18/24 16:15 • (MSD) R4095679-4 07/18/24 16:39
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
C10-C28 Diesel Range 1.43 U 1.24 1.21 86.7 84.6 1 50.0-150 2.45 20
(S) o-Terphenyl 123 121 52.0-156
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2324943
Semi-Volatile Organic Compounds (GC) by Method 8015-SGT L1756101-01,02,03
Method Blank (MB)
(MB) R4095677-1 07/18/24 08:58
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
C10-C28 Diesel Range U 0.0222 0.100
C28-C40 Oil Range U 0.0118 0.100
(S) o-Terphenyl 75.5 52.0-156
Laboratory Control Sample (LCS)
(LCS) R4095677-2 07/18/24 09:22
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte mg/l mg/l %%
C10-C28 Diesel Range 1.50 1.28 85.3 50.0-150
(S) o-Terphenyl 78.5 52.0-156
L1756173-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1756173-01 07/18/24 15:51 • (MS) R4095677-3 07/18/24 16:15 • (MSD) R4095677-4 07/18/24 16:39
Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/l mg/l mg/l mg/l %%%%%
C10-C28 Diesel Range 1.43 U 1.24 1.21 86.7 84.6 1 50.0-150 2.45 20
(S) o-Terphenyl 123 121 52.0-156
Sample Narrative:
OS: Reporting from non-silica gel data due to non-detect to the RDL.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control
sample. The Original Sample may not be included within the reported SDG.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
B The same analyte is found in the associated blank.
J The identification of the analyte is acceptable; the reported value is an estimate.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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