DERR-2024-011590

THIRD QUARTER 2024
GROUNDWATER MONITORING REPORT
Flying J Travel Center #744
1172 W. 21st Street
West Haven, Weber County, Utah
DERR Facility ID #1200053, LUST Release Site ID: MAC

Prepared for:

Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West
P.O. Box 144840
Salt Lake City, Utah 84114-4840

Prepared by:

Broadbent & Associates, Inc.
186 E. Main Street, Ste. #99
Sandy, Utah 84070
[phone]

October 22, 2024

Project No. 19-14-104

THIRD QUARTER 2024 GROUNDWATER MONITORING REPORT
FLYING J TRAVEL CENTER #744
WEST HAVEN, WEBER COUNTY, UTAH

Broadbent & Associates, Inc. (Broadbent) is pleased to present this Third Quarter 2024 Groundwater Monitoring
Report on behalf of Pilot Travel Centers LLC (Pilot) associated with Flying J Travel Center #744 located in West
Haven, Weber County, Utah (Site or FJ #744). Figure 1 depicts the general location of the Site. Figure 2 depicts the
general area of investigation associated with LUST release ID: MAC. Groundwater monitoring and sampling were
conducted to assist with evaluation of conditions associated with the presence of a dissolved phase petroleum
hydrocarbon plume at the Site. Third Quarter 2024 groundwater monitoring and sampling was conducted by Sarah
Hamilton (GS #1869). Details of work performed, discussion of results, and recommendations are provided below.

Facility Name / Address: Flying J Travel Center #744, 1172 W. 21st Street, West Haven, Weber
County, Utah
Pilot Project Manager / Title: Mr. Joey Cupp – Sr. Director, Environmental, [phone]
Broadbent Contact: Mr. Aric Morton, [phone]
Broadbent Project No.: 19-14-104
Primary Regulatory Agency / ID No.: Utah Department of Environmental Quality (UDEQ)
DERR Facility ID #1200053, LUST Release ID: MAC
Current phase of project: Monitoring and evaluation of Site conditions
List of Acronyms / Abbreviations: See end of report text for list of acronyms/abbreviations used in
report.

WORK PERFORMED THIS PERIOD (Third Quarter 2024):
1. Conducted groundwater monitoring and sampling on September 4, 2024.

WORK SCHEDULED FOR NEXT PERIOD (Fourth Quarter 2024):
1. Prepare and submit the Third Quarter 2024 Groundwater Monitoring Report (contained herein).
2. Conduct Fourth Quarter 2024 groundwater monitoring and sampling in December 2024.

QUARTERLY MONITORING PLAN SUMMARY:
Groundwater level gauging: MW-1, MW-2, MW-3R, MW-4 through
MW-14, and MWows-2
(quarterly)
Groundwater sample collection: MW-1, MW-2, MW-3R, MW-5 through
MW-7, MW-9, MW-11 through MW-
14, and MWows-2
(quarterly)

QUARTERLY RESULTS SUMMARY:
LNAPL
LNAPL observed this quarter: No (yes/no)
LNAPL recovered this quarter: None (gal)
Cumulative LNAPL recovered: 0 (gal)

Groundwater Elevation and Gradient:

Depth to groundwater: 5.45 (MW-14) to 8.81 (MW-5) (ft below TOC)
Gradient direction: Generally north-northeast (Compass direction)
Gradient magnitude: 0.005 (ft/ft)
Average change in elevation: 1.33 decrease (ft since last measurement)

Broadbent & Associates, Inc. Third Quarter 2024 Groundwater Monitoring Report
Salt Lake City, Utah Flying J Travel Center #744/West Haven, Utah
October 22, 2024
Page 2

Laboratory Analytical Data
Summary:
TPH-DRO was detected in twelve (12) groundwater monitoring wells
during Third Quarter 2024. Monitoring well MW-6 (1,300 µg/L) had
concentrations that are above UDEQ Initial Screening Levels (ISLs) for
TPH-DRO.

ACTIVITIES CONDUCTED & RESULTS:

Third Quarter 2024 groundwater monitoring and sampling activities were conducted on September 4, 2024 by
Sarah Hamilton, Certified Sampler #GS-1869. Monitoring wells MW-1, MW-2, MW-3R, MW-4 through MW-14,
and MWows-2 were gauged to measure depth to water and depth to LNAPL, if present. No irregularities were
reported during gauging activities. Depth to groundwater ranged from 5.45 feet (MW-14) to 8.81 feet (MW-5).
LNAPL was not recorded during this monitoring event. Groundwater flow is generally to the north-northeast at an
average magnitude of 0.005 ft/ft. Groundwater elevations decreased approximately 1.33 feet across the Site since
Second Quarter 2024. Broadbent’s groundwater monitoring and sampling field procedures are provided in
Appendix A. Groundwater monitoring field data sheets are provided in Appendix B. Current and historical
groundwater elevation data are presented in Table 1. A groundwater potentiometric surface map is attached as
Figure 3.
Groundwater samples were collected from monitoring wells MW-1, MW-2, MW-3R, MW-5 through MW-7, MW-
9, MW-11 through MW-14, and MWows-2 on September 4, 2024. No irregularities were reported during purging
or sampling. Samples were submitted on ice, under chain-of-custody protocol, to Pace Analytical in Mount Juliet,
Tennessee for analysis of total petroleum hydrocarbons (TPH) diesel range organics (DRO) with silica gel treatment
by EPA Method 3510C. The sample results passed the internal laboratory QA/QC and were considered usable. A
groundwater analytical map is attached as Figure 4. Laboratory analytical results are summarized in Table 1. The
laboratory report and chain-of-custody documentation are attached as Appendix C.

Analytical results yield the following notable observations:

• TPH-DRO was detected in each of the groundwater samples submitted at concentrations ranging from
139 µg/L in MW-9 to 1,300 µg/L in MW-6. Sample MW-6’s concentration exceeds the UDEQ ISL of 1,000
µg/L for TPH-DRO.

DISCUSSION:

The Third Quarter 2024 groundwater monitoring event was conducted on September 4, 2024. Site-associated
groundwater monitoring wells were sampled in accordance with the Corrective Action Plan Amendment Approval
(CAP) dated February 4, 2020. Depth to water gauging in Site wells resulted in a general groundwater gradient
direction to the north-northeast at an average magnitude of 0.005 ft/ft. Measurable LNAPL was not observed
during this monitoring event.

Third Quarter 2024 laboratory analytical results indicated the presence of residual impacts of TPH-DRO in the 12
samples submitted for laboratory analysis. TPH-DRO at 1,300 µg/L in sample MW-6 exceeds the UDEQ ISL of 1,000
µg/L. An isocontour map depicting residual TPH-DRO concentrations is provided as Figure 5. Graphs depicting the
concentrations of TPH-DRO versus time for select monitoring wells are attached as Graphs 1 through 6.

RECOMMENDATIONS:

Broadbent recommends continuing with quarterly groundwater monitoring and sampling of monitoring wells per
the quarterly monitoring plan summary presented above. The Fourth Quarter 2024 groundwater monitoring
Broadbent & Associates, Inc. Third Quarter 2024 Groundwater Monitoring Report
Salt Lake City, Utah Flying J Travel Center #744/West Haven, Utah
October 22, 2024
Page 3

event is tentatively scheduled for December 2024 to evaluate residual hydrocarbon impacts associated with LUST
Release ID: MAC.

LIMITATIONS:

The findings presented in this report are based upon observations of field personnel, points investigated, results
of laboratory tests performed by Pace Analytical Inc. in Mt. Juliet, Tennessee, and our understanding of UDEQ
practices. Our services were performed in accordance with the generally accepted standard of practice at the time
this report was written. No other warranty expressed or implied was made. This report has been prepared for the
exclusive use of Pilot Travel Centers LLC. It is possible that variations in soil or groundwater conditions could exist
beyond points explored in this investigation. Also, changes in Site conditions could occur in the future due to
variations in rainfall, temperature, regional water usage, or other factors.

REFERENCES:

Broadbent & Associates, Inc., 2024. Second Quarter 2024 Groundwater Monitoring Report, Flying J Travel Center
#744, 1172 W. 21st Street, West Haven, Weber County, Utah, DERR Facility ID #1200053, LUST Release
Site ID: MAC, June 19.

Utah Department of Environmental Quality, 2005. Initial Screening Levels. November 5.

Utah Department of Environmental Quality, 2020. Corrective Action Plan Amendment Approval. February 4.
Broadbent & Associates, Inc. Third Quarter 2024 Groundwater Monitoring Report
Salt Lake City, Utah Flying J Travel Center #744/West Haven, Utah
October 22, 2024
Page 4

ATTACHMENTS:

Figure 1 Site Location Map
Figure 2 Site Layout Map
Figure 3 Potentiometric Surface Map (9/4/24)
Figure 4 Groundwater Analytical Map (9/4/24)
Figure 5 TPH-DRO Isocontour Map (9/4/24)

Table 1 Groundwater Monitoring and Analytical Results

Graphs 1-6 TPH-DRO Concentration and Depth to Water vs. Time for Select Wells

Appendix A: Field Methods
Appendix B: Field Data Sheets
Appendix C: Laboratory Report and Chain of Custody Documentation

LIST OF COMMONLY USED ACCRONYMS/ABBREVIATIONS:

BTEX: benzene, toluene, ethylbenzene, total xylenes LNAPL: light non-aqueous phase liquid
DO: dissolved oxygen MTBE: methyl tertiary butyl ether
DRO: diesel range organics NO3: nitrate as nitrogen
Eh: oxidation reduction potential PAHs: polycyclic aromatic hydrocarbons
Fe2+: ferrous iron SO4: sulfate
ft/ft: feet per foot SVOCs: semi-volatile organic compounds
gal: gallons TOC: top of casing
TPH: Total petroleum hydrocarbons g/L: micrograms per liter
UDEQ Utah Department of Environmental Quality IRLs Initial Screening Levels

Site Location Map
Flying J Travel Center #744
1172 West 21st Street
West Haven, Utah
Project No. 19-14-104
Figure
Prepared by: JEH Reviewed by: ACM Date: 2/22/21
1
0
SCALE: 1 inch = 3000 feet
3000 6000
LEGEND
Site Location
W 210
0

S
Au
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F
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a
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F
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Flying J Travel Center #744 S
1
1
0
0

W
MW-12
MW-4
MW-2
MW-1
MW-8
MW-14
MW-13
MWows-2
MW-3R
MW-9
MW-5
MW-10
MW-11
MW-7
MW-6
Site Layout Map
Flying J Travel Center #744
1172 West 21st Street
West Haven, Utah
Project No. 19-14-104
Figure
Prepared by: JEH Reviewed by: ACM Date: 2/22/21
2
0
SCALE: 1 inch = 80 feet
80 160
LEGEND
Property Boundary (approximate)
Monitoring Well LocationMW-2
W 210
0

S
Au
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F
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S
1
1
0
0

W
91.92
91.97
92.04
92.53
92.06
NM
92.00
NM
91.16
91.03
91.68
91.99
92.06
92.00
MW-12
MW-4
MW-2
MW-1
MW-8
MW-14
MW-13
MWows-2
MW-3R
MW-9
NM
MW-5
MW-10
MW-11
MW-7
MW-6
Potentiometric Surface Map (9/4/24)
Flying J Travel Center #744
1172 West 21st Street
West Haven, Utah
Project No. 19-14-104
Figure
Prepared by: AGH Reviewed by: ACM Date: 9/30/24
3
0
SCALE: 1 inch = 80 feet
80 160
LEGEND
Property Boundary (approximate)
MW-1 Monitoring Well Location and Groundwater Elevation (feet)
Groundwater Elevation Contour (0.1 feet)92.00
Groundwater Flow Direction (0.005 feet/foot)
*Monitoring well not utilized for potentiometric surface depiction
Flying J Travel Center #744
W 210
0

S
Au
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F
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a
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F
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l
a
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s
S
1
1
0
0

W
TPH-DRO = 147
TPH-DRO = 400
TPH-DRO = 263
TPH-DRO = 169
TPH-DRO = 325
TPH-DRO = 139
TPH-DRO = 918
Not Sampled
Not Sampled
Not Sampled
MW-12
MW-4
MW-2
MW-1
MW-8
MW-14
MW-13
MWows-2
MW-3R
MW-9
TPH-DRO = 734 TPH-DRO = 1,300
TPH-DRO = 735
MW-5
MW-10
MW-11
MW-7
MW-6
TPH-DRO = 941
TPH-DRO = 416
Groundwater Analytical Map (9/4/24)
Flying J Travel Center #744
1172 West 21st Street
West Haven, Utah
Project No. 19-14-104
Figure
Prepared by: AGH Reviewed by: ACM Date: 9/30/24
4
0
SCALE: 1 inch = 80 feet
80 160
LEGEND
Property Boundary (approximate)
Monitoring Well LocationMW-2
TPH-DRO = 169 Total Petroleum Hydrocarbons
Diesel Range Organics (µg/L)
Key to Dissolved Groundwater Concentrations*
*Concentrations in BOLD exceed UDEQ ISL Regulatory Standards
Flying J Travel Center #744
W 210
0

S
Au
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F
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Flying J Travel Center #744 S
1
1
0
0

W
100
500
TPH-DRO = 147
TPH-DRO = 400
TPH-DRO = 263
TPH-DRO = 169
TPH-DRO = 325
TPH-DRO = 139
TPH-DRO = 918
Not Sampled
Not Sampled
Not Sampled
TPH-DRO = 734 TPH-DRO = 1,300
TPH-DRO = 735
TPH-DRO = 941
TPH-DRO = 416
1,000
MW-12
MW-4
MW-2
MW-1
MW-8
MW-14
MW-13
MWows-2
MW-3R
MW-9
MW-5
MW-10
MW-11
MW-7
MW-6
TPH-DRO Isocontour Map (9/4/24)
Flying J Travel Center #744
1172 West 21st Street
West Haven, Utah
Project No. 19-14-104
Figure
Prepared by: AGH Reviewed by: ACM Date: 9/30/24
5
0
SCALE: 1 inch = 80 feet
80 160
LEGEND
Property Boundary (approximate)
Monitoring Well LocationMW-2
TPH-DRO = 169 Total Petroleum Hydrocarbons
Diesel Range Organics (µg/L)
Key to Dissolved Groundwater Concentrations*
*Concentrations in BOLD exceed UDEQ ISL Regulatory Standards
TPH-DRO Dissolved Groundwater Isocontour (µg/L)100
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000
08/03/06 11 3.6 <5 <1 7.4 6.5 100 1,300 8.08 91.24
06/12/09 7.8 <1.0 <5.0 <1.0 <3.0 <5.0 <500 1,800 6.35 92.97
12/16/09 6.2 4.7 <5.0 <1.0 <3.0 <5.0 <500 490 8.87 90.45
06/09/10 3.1 7.5 <5.0 <1.0 <3.0 <5.0 <500 650 6.88 92.44
11/11/10 5.2 2.6 <1 <1 <1 <1 170 280 8.08 92.43
06/06/11 3.0 0.40J <2.0 <2.0 <4.0 5.6 <200 1,210 5.02 95.49
12/19/11 2.0 <1.0 <2.0 <2.0 <4.0 <5.0 <200 <380 9.48 91.03
04/16/12 1.6J <1.0 <2.0 <2.0 <4.0 <5.0 <200 324J 9.42 91.09
06/12/12 0.90J <1.0 <2.0 <2.0 <3.0 <5.0 <200 142J 8.55 91.96
12/11/12 0.90J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 9.95 90.56
06/25/13 1.4J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 8.52 91.99
12/10/13 1.9J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 10.54 89.97
06/30/14 0.91J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 8.42 92.09
12/15/14 0.86J <1.0 <1.0 <1.0 <2.0 <5.0 <50 <190 100.51
06/16/15 1.0 <1.0 <1.0 <1.0 <2.0 <5.0 <50 <190 7.56 92.95
12/11/15 1.3 <1.0 <1.0 <1.0 <1.0 <4.0 <200 <190 8.86 91.65
06/13/17 <1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 <200 7.30 93.21
09/27/17 0.98J <1.0 <1.0 <1.0 <1.0 <4.0 <200 <200 7.95 92.56
12/11/18 <1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 <200 9.69 90.82
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 268 6.40 94.11
07/10/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 323 7.49 93.02
10/10/19 0.898J <1.0 <1.0 <1.0 <3.0 1.45J 341 JB 370 8.42 92.09
01/20/20 348 8.43 92.08
12/15/20 <100 10.06 90.45
03/22/21 171 8.99 91.52
06/03/21 <100 8.71 91.80
09/29/21 <100 9.50 91.01
12/15/21 <100 10.41 90.10
02/24/22 <100 9.76 90.75
05/10/22 <100 9.14 91.37
09/29/22 <100 8.38 92.13
12/01/22 <100 9.71 90.80
03/21/23 792 6.85 93.66
06/28/23 <100 7.61 92.90
09/28/23 <100 8.38 92.13
12/05/23 <100 9.60 90.91
03/26/24 <100 7.42 93.09
05/28/24 <100 6.88 93.63
09/04/24 147 8.45 92.06(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
RBCA Tier 1 SL
Date
UDEQ ISL
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
(no longer analyzed as per DERR)
Depth to
Groundwater
(feet btoc)
(no longer analyzed as per DERR)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 1 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
08/03/06 11 3.5 <5 <1 <3 <5 290 2,200 8.39 91.29
06/12/09 4.7 6.5 <5.0 <1.0 <3.0 32 <500 5,700 6.67 93.01
12/16/09 5.8 78 <5.0 <1.0 <3.0 <5.0 <500 1,400 9.18 90.50
06/09/10 21 37 <5.0 <1.0 5.6 <5.0 <500 6,900 5.23 94.45
11/11/10 5.2 24 1 <1 4.8 1.4 1,000 1,600 8.40 92.45
06/06/11 1.7J 10.5 <2.0 0.72J 2.1J 7.2J <200 2,370 5.40 95.45
12/19/11 3.9 2.0 <2.0 <2.0 <4.0 <5.0 <200 988 9.75 91.10
04/16/12 1.6J 2.1 <2.0 <2.0 <4.0 <5.0 <200 881 9.71 91.14
06/12/12 5.0 9.4 <2.0 <2.0 <3.0 2.2J <200 1,620 8.87 91.98
12/11/12 2.7 47.7 <2.0 <2.0 <3.0 <5.0 <200 1,370 10.25 90.60
06/25/13 2.5 3.0 <2.0 <2.0 2.7J <5.0 <200 2,670 8.83 92.02
12/10/13 2.3 1.4 <2.0 <2.0 <3.0 <5.0 <200 689 10.81 90.04
06/30/14 1.9J 0.74J <2.0 <2.0 <3.0 <5.0 <200 2,220 8.73 92.12
12/15/14 1.3 0.20J <1.0 <1.0 <2.0 <5.0 <50 1,340 10.83 90.02
06/16/15 2.8 0.40J <1.0 <1.0 <2.0 <5.0 33.1J 1,690 7.87 92.98
12/11/15 2.7 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,850 9.17 91.68
06/12/17 <1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,810 7.56 93.29
09/27/17 1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,200 8.26 92.59
12/11/18 0.75J <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,360 9.97 90.88
04/03/19 1.13 <1.0 <1.0 <1.0 <3.0 <5.0 <500 4,750 6.73 93.97
07/10/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 3,040 7.79 92.91
10/10/19 0.539J <1.0 <1.0 <1.0 <3.0 2.58J 339 JB 2,220 8.75 91.95
01/20/20 4,920 8.75 91.95
12/15/20 282 10.73 89.97
03/22/21 281 9.32 91.38
06/03/21 232 8.96 91.74
09/29/21 265 9.33 91.37
12/15/21 1,230 10.52 90.18
02/24/22 113 NM NM
05/10/22 144 9.37 91.33
09/29/22 299 8.64 92.06
12/01/22 203 9.91 90.79
03/21/23 248 7.35 93.35
06/28/23 211 7.81 92.89
09/28/23 327 8.56 92.14
12/05/23 108 9.80 90.90
03/26/24 164 7.69 93.01
05/28/24 337 7.10 93.60
09/04/24 400 8.70 92.00
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-2
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 2 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
08/03/06 53 87 <5 <1 <3 7.8 560 1,800 6.44 91.54
06/12/09 4 11 <5.0 <1.0 <3.0 <5.0 <500 3,200 4.68 93.30
12/16/09 16 100 <5.0 <1.0 <3.0 <5.0 <500 1,800 7.25 90.73
06/09/10 4.0 94 13 3.2 3.6 <5.0 <500 3,200 7.18 90.80
11/11/10 4 100 15 2.8 5.3 1.7 740 1,900 6.51 92.45
06/06/11 29.7 72.9 5.8 0.93J <4.0 <10 277 620 3.35 95.61
12/19/11 1.4J 1.6 <2.0 <2.0 <4.0 <5.0 <200 820 7.80 91.16
04/16/12 1.0J 1.4 <2.0 <2.0 <4.0 <5.0 <200 799 7.67 91.29
06/11/12 <2.0 4.8 <2.0 0.48J <3.0 <5.0 <200 3,430 6.95 92.01
12/11/12 <2.0 9.8 <2.0 <2.0 <3.0 <5.0 <200 1,440 7.95 91.01
06/25/13 1.4J 1.7 <2.0 <2.0 <3.0 <5.0 <200 2,030 6.88 92.08
12/10/13 2.9 9.4 <2.0 <2.0 <3.0 <5.0 249 2,980 8.83 90.13
06/30/14 3.7 3.7 <2.0 <2.0 2.0J <5.0 <200 2,030 6.75 92.21
12/15/14 2.5 2.6 <1.0 <1.0 <2.0 <5.0 68.3 2,470 8.86 90.10
06/16/15 10.9 2.6 <1.0 <1.0 <2.0 <5.0 98.6 2,000 5.95 93.01
12/11/15 2.6 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,620 7.17 91.79
06/12/17 3.4 <1.0 <1.0 <1.0 <1.0 <4.0 <200 2,400 5.54 93.42
09/27/17 <1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,920 6.30 92.66
12/11/18 0.95J <1.0 <1.0 <1.0 <1.0 <4.0 <200 7,270 5.93 93.03
01/30/19 <1.00 <1.00 <5.00 <1.00 <3.00 <5.0 <500 7,720 6.75 92.00
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 10,700 4.73 94.02
07/10/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 3,070 5.77 92.98
10/10/19 <1.0 <1.0 <1.0 <1.0 <3.0 2.95J 349 JB 1,990 6.75 92.00
01/20/20 4,970 6.76 91.99
12/17/20 532 8.72 90.03
03/22/21 433 7.35 91.40
06/03/21 373 6.99 91.76
09/29/21 NS 7.79 90.96
12/15/21 159 8.50 90.25
02/24/22 1,970 8.03 90.72
05/10/22 635 7.86 90.89
09/29/22 1,030 6.64 92.11
12/01/22 232 9.20 89.55
03/21/23 1,340 5.35 93.40
06/26/23 1,950 9.40 89.35
09/28/23 1,030 6.64 92.11
12/05/23 393 7.77 90.98
03/26/24 835 5.70 93.05
05/28/24 475 5.08 93.67
09/04/24 735 6.69 92.06
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-3
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-3R
Well Abandoned 1-30-19
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 3 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
08/03/06 <1 <1 <5 <1 <3 <5 150 220 7.82 91.50
06/12/09 <1.0 <1.0 <5.0 <1.0 <3.0 <5.0 <500 320 6.00 93.32
12/16/09 <1.0 <1.0 <5.0 <1.0 <3.0 <5.0 <500 <100 8.67 90.65
06/09/10 <1.0 <1.0 <5.0 <1.0 <3.0 <5.0 <500 650 6.61 92.71
11/11/10 <1 <1 <1 <1 <1 <1 <50 <100 7.86 92.63
06/06/11 <2.0 <1.0 <2.0 <2.0 <4.0 <10 <200 <380 4.65 95.84
12/19/11 <2.0 <1.0 <2.0 <2.0 <4.0 <5.0 <200 <380 9.12 91.37
06/11/12 NS NS NS NS NS NS NS NS 8.33 92.16
12/11/12 NS NS NS NS NS NS NS NS NM NM
06/25/13 NS NS NS NS NS NS NS NS 8.29 92.20
12/10/13 NS NS NS NS NS NS NS NS 10.17 90.32
06/30/14 NS NS NS NS NS NS NS NS 8.19 92.30
12/15/14 NS NS NS NS NS NS NS NS 10.16 90.33
06/16/15 NS NS NS NS NS NS NS NS 7.35 93.14
12/11/15 NS NS NS NS NS NS NS NS 8.69 91.80
06/12/17 NS NS NS NS NS NS NS NS 6.85 93.64
09/27/17 NS NS NS NS NS NS NS NS 7.62 92.87
12/11/18 NS NS NS NS NS NS NS NS 9.23 91.26
04/03/19 NS NS NS NS NS NS NS NS 6.10 94.08
07/10/19 NS NS NS NS NS NS NS NS 7.03 93.15
10/10/19 NS NS NS NS NS NS NS NS 8.10 92.08
01/20/20 NS NS NS NS NS NS NS NS 8.11 92.07
12/15/20 NS NS NS NS NS NS NS NS NM NA
03/22/21 NS NS NS NS NS NS NS NS NM NA
06/03/21 NS NS NS NS NS NS NS NS NM NA
09/29/21 188 9.11 91.07
12/14/21 NS 10.12 90.06
06/28/23 <100 7.18 93.00
09/28/23
12/05/23 NS 9.03 91.15
03/26/24 NS 7.04 93.14
05/28/24 NS 6.43 93.75
09/04/24 NS 8.05 92.13
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Well Not Found
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-4
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 4 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
08/03/06 100 12 <5 <1 3.6 <5 <100 320 8.70 91.52
06/12/09 62 36 <5.0 <1.0 <3.0 28 <500 1,100 6.89 93.33
12/16/09 74 32 <5.0 <1.0 <3.0 9.6 <500 710 9.55 90.67
06/09/10 39 20 <5.0 <1.0 <3.0 18 <500 800 7.52 92.70
11/11/10 45 58 <1 <1 <1 21 1,400 1,300 8.75 92.59
06/06/11 19.3 10.3 <2.0 <2.0 <4.0 <10 <200 918 5.58 95.76
12/19/11 12.1 6.7 <2.0 <2.0 <4.0 <5.0 <200 417 10.05 91.29
04/16/12 11.9 2.8 <2.0 <2.0 <4.0 <5.0 <200 <380 9.95 91.39
06/12/12 <2.0 37.4 <2.0 <2.0 <3.0 28.2 267 710 9.21 92.13
12/11/12 9.4 2.7 <2.0 <2.0 <3.0 <5.0 <200 246 10.48 90.86
06/25/13 15.3 23.5 <2.0 <2.0 <3.0 25.0 <200 736 9.16 92.18
12/10/13 6.3 <1.0 <2.0 <2.0 <3.0 <5.0 <200 203 11.06 90.28
06/30/14 8.8 14.0 <2.0 0.48J <3.0 18.0 <200 451 9.05 92.29
12/15/14 6.5 <1.0 <1.0 <1.0 <2.0 <5.0 26.7J <190 11.05 90.29
06/16/15 6.0 4.5 <1.0 <1.0 <2.0 3.5J 78.2 414 8.20 93.14
12/11/15 5.9 0.66J <1.0 <1.0 <1.0 <4.0 <200 280 9.55 91.79
06/12/17 2.5 1.7 <1.0 <1.0 <1.0 <4.0 <200 13,800 7.72 93.62
09/27/17 1.7 0.87J <1.0 <1.0 <1.0 <4.0 <200 358 8.47 92.87
12/11/18 0.87J <1.0 <1.0 <1.0 <1.0 <4.0 <200 413 10.05 91.29
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 419 6.93 94.41
07/10/19 1.26 <1.0 <1.0 <1.0 <3.0 <5.0 <500 671 7.83 93.51
10/10/19 1.40 0.432J <1.0 <1.0 <3.0 2.27J 376 JB 923 8.99 92.35
01/20/20 735 8.98 92.36
12/15/20 11,800 10.00 91.34
03/22/21 794 9.61 91.73
06/03/21 640 9.12 92.22
09/29/21 <100 9.96 91.38
12/15/21 <100 10.47 90.87
02/24/22 120 10.29 91.05
05/10/22 <100 9.65 91.69
09/29/22 217 8.74 92.60
12/01/22 290 9.20 92.14
03/21/23 172 7.10 94.24
06/28/23 <100 7.87 93.47
09/29/23 214 8.70 92.64
12/05/23 <100 9.65 91.69
03/26/24 132 7.51 93.83
05/28/24 125 7.15 94.19
09/04/24 169 8.81 92.53
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-5
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 5 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
11/09/10 <1 3 <1 <1 <1 1.2 <50 320 5.77 92.47
06/06/11 <2.0 <1.0 <2.0 <2.0 <4.0 <10 <200 322J 2.74 95.50
12/19/11 1.8J <1.0 <2.0 <2.0 <4.0 <5.0 <200 347J 7.17 91.07
06/11/12 3.7 <1.0 <2.0 0.55J <3.0 <5.0 <200 404 6.30 91.94
12/11/12 1.0J 0.50J <2.0 <2.0 <3.0 <5.0 <200 422 7.67 90.57
06/25/13 1.9J <1.0 <2.0 <2.0 <3.0 <5.0 <200 1,190 6.24 92.00
12/10/13 2.8 2.4 <2.0 <2.0 <3.0 <5.0 <200 706 8.22 90.02
06/30/14 2.3 <1.0 <2.0 <2.0 <3.0 <5.0 <200 610 6.13 92.11
12/15/14 1.1 <1.0 <1.0 <1.0 <2.0 <5.0 <50 741 8.25 89.99
06/16/15 1.4 <1.0 <1.0 <1.0 <2.0 <5.0 <50 626 5.28 92.96
12/11/15 1.7 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,350 6.58 91.66
06/12/17 <1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 <200 4.94 93.30
09/27/17 1.6 <1.0 <1.0 <1.0 <1.0 <4.0 <200 <190 5.68 92.56
12/11/18 <1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 434 7.38 90.86
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 4,400 4.16 93.98
07/10/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 1,830 5.18 92.96
10/10/19 0.508J <1.0 <1.0 <1.0 <3.0 1.56J 342 JB 1,110 6.15 91.99
01/20/20 1,550 6.19 91.95
12/15/20 555 8.02 90.12
03/22/21 1,090 7.11 91.03
06/03/21 771 6.42 91.72
09/29/21 <100 7.17 90.97
12/15/21 NS NM NM
02/24/22 2,540 7.41 90.73
05/10/22 1,280 6.81 91.33
09/29/22 2,880 6.00 92.14
12/01/22 4,170 7.41 90.73
03/21/23 555 3.20 94.94
06/28/23 1,260 5.70 92.44
09/28/23 537 6.30 91.84
12/05/23 574 7.29 90.85
03/26/24 899 3.38 94.76
05/28/24 1,160 4.52 93.62
09/04/24 1,300 6.15 91.99
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-6
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 6 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
11/09/10 8.8 50 2 3.8 <1 3.2 2,000 3,300 7.55 92.45
06/06/11 5.2 33.4 <2.0 <2.0 <4.0 <10 <200 1,530 4.60 95.40
12/19/11 3.4 2.1 <2.0 <2.0 <4.0 <5.0 <200 1,070 8.99 91.01
04/16/12 2.7 2.6 <2.0 <2.0 <4.0 <5.0 <200 949 8.92 91.08
06/11/12 <2.0 4.9 <2.0 <2.0 <3.0 <5.0 <200 1,190 8.10 91.90
12/11/12 3.1 15.5 <2.0 <2.0 <3.0 <5.0 <200 776 9.49 90.51
06/25/13 6.0 2.4 <2.0 <2.0 <3.0 <5.0 <200 823 8.05 91.95
12/10/13 3.9 0.55J <2.0 <2.0 <3.0 <5.0 <200 787 10.06 89.94
06/30/14 4.8 0.38J <2.0 <2.0 <3.0 <5.0 <200 936 7.95 92.05
12/15/14 2.8 <1.0 <1.0 <1.0 <2.0 <5.0 <50 828 10.09 89.91
06/16/15 3.2 0.21J <1.0 <1.0 <2.0 <5.0 111 1,170 7.11 92.89
12/11/15 3.6 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,310 8.40 91.60
06/12/17 1.4 <1.0 <1.0 <1.0 <1.0 <4.0 <200 7,680 6.81 93.19
09/27/17 1.9 <1.0 <1.0 <1.0 <1.0 <4.0 <200 827 7.50 92.50
12/11/18 1.2 <1.0 <1.0 <1.0 <1.0 <4.0 <200 525 9.21 90.79
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 3,050 5.96 94.04
07/10/19 1.18 <1.0 <1.0 <1.0 <3.0 <5.0 <500 2,130 7.00 93.00
10/10/19 <5.0 <5.0 <5.0 <5.0 <15.0 <25 <100d 1,670 7.98 92.02
01/20/20 1,030 7.98 92.02
12/15/20 2,770 10.03 89.97
03/22/21 394 8.55 91.45
06/03/21 318 6.42 93.58
09/29/21 222 8.97 91.03
12/14/21 428 9.88 90.12
02/24/22 283 9.25 90.75
05/10/22 182 8.63 91.37
09/29/22 258 7.88 92.12
12/01/22 7,790 9.21 90.79
03/21/23 772 6.62 93.38
06/28/23 118 7.20 92.80
09/28/23 393 7.91 92.09
12/05/23 692 9.10 90.90
03/26/24 808 6.97 93.03
05/28/24 534 6.49 93.51
09/04/24 734 7.96 92.04
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)MW-7
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 7 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
11/09/10 4.8 3.2 <1 <1 <1 1.2 120 460 7.64 92.42
06/06/11 2.8 0.40J <2.0 <2.0 <4.0 <10 <200 1,180 4.61 95.45
12/19/11 2.2 <1.0 <2.0 <2.0 <4.0 <5.0 <200 400 9.09 90.97
06/11/12 NS NS NS NS NS NS NS NS 8.15 91.91
12/11/12 NS NS NS NS NS NS NS NS 9.57 90.49
06/25/13 NS NS NS NS NS NS NS NS 8.12 91.94
12/10/13 NS NS NS NS NS NS NS NS 10.17 89.89
06/30/14 NS NS NS NS NS NS NS NS 8.04 92.02
06/12/17 NS NS NS NS NS NS NS NS 6.93 93.13
07/10/19 NS NS NS NS NS NS NS NS 7.10 92.96
12/15/20 NS NS NS NS NS NS NS NS NM NM
03/22/21 NS NS NS NS NS NS NS NS NM NM
06/03/21 <100 8.27 91.79
09/29/21 NS NM NM
12/14/21 NS NM NM
06/28/23 NS NM NM
09/28/23 NS 7.96 92.10
12/05/23 NS 9.18 90.88
03/26/24 NS 7.40 92.66
05/28/24 NS 6.87 93.19
09/04/24 NS 8.06 92.00(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-8
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 8 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
11/09/10 5.3 6.8 <1 <1 <1 1.2 160 410 7.19 92.37
06/06/11 3.6 1.4 <2.0 <2.0 <4.0 <10 <200 1,040 4.18 95.38
12/19/11 2.2 <1.0 <2.0 <2.0 <4.0 <5.0 <200 413 8.68 90.88
06/12/12 <2.0 <1.0 <2.0 <2.0 <3.0 <5.0 <200 194 7.72 91.84
12/11/12 1.1J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 9.16 90.40
06/25/13 1.1J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 7.66 91.90
12/10/13 1.9J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 9.75 89.81
06/30/14 0.89J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 7.56 92.00
12/15/14 1.2 <1.0 <1.0 <1.0 <2.0 <5.0 <50 <190 9.76 89.80
06/16/15 0.76J <1.0 <1.0 <1.0 <2.0 <5.0 <50 <190 6.68 92.88
12/11/15 1.3 <1.0 <1.0 <1.0 <1.0 <4.0 <200 <190 7.96 91.60
06/13/17 0.92J <1.0 <1.0 <1.0 <1.0 <4.0 <200 194J 6.45 93.11
09/27/17 0.91J <1.0 <1.0 <1.0 <1.0 <4.0 <200 <190 7.10 92.46
12/11/18 <1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 <200 8.86 90.70
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 227 5.51 94.05
07/10/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 329 6.63 92.93
10/10/19 <5.0 <5.0 <5.0 <5.0 <15.0 <25 <100d 400 7.58 91.98
01/20/20 256 7.49 92.07
12/15/20 <100 10.71 88.85
03/22/21 <100 8.13 91.43
06/03/21 <100 7.79 91.77
09/29/21 <100 8.50 91.06
12/14/21 <100 9.53 90.03
02/24/22 <100 8.85 90.71
05/10/22 <100 8.23 91.33
09/29/22 <100 7.47 92.09
12/01/22 <100 8.86 90.70
03/21/23 <100 6.12 93.44
06/28/23 <100 6.72 92.84
09/28/23 <100 8.47 91.09
12/05/23 <100 8.75 90.81
03/26/24 <100 6.51 93.05
05/28/24 <100 5.95 93.61
09/04/24 139 7.56 92.00(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-9
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 9 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
11/09/10 7.2 1.7 <1 <1 <1 1.1 <50 150 7.18 92.39
06/06/11 8.1 0.36J <2.0 <2.0 <4.0 <10 <200 501 4.15 95.42
12/19/11 2.8 <1.0 <2.0 <2.0 <4.0 <5.0 <200 <380 8.63 90.94
06/12/12 4.3 <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 7.66 91.91
12/11/12 1.2J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 9.10 90.47
06/25/13 1.6J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 7.60 91.97
12/10/13 2.0 <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 9.68 89.89
06/30/14 0.98J <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 7.50 92.07
06/16/15 NS NS NS NS NS NS NS NS 6.64 92.93
06/12/17 NS NS NS NS NS NS NS NS 6.40 93.17
12/15/20 NS NS NS NS NS NS NS NS NM NM
03/22/21 NS NS NS NS NS NS NS NS NM NM
06/03/21 <100 8.70 90.87
09/29/21 NS NM NM
12/14/21 NS 9.52 90.05
06/28/23 NS NM NM
09/28/23 NS 7.44 92.13
12/05/23 NS 8.63 90.94
03/26/24 NS 6.97 92.60
05/28/24 NS 6.46 93.11
09/04/24 NS 7.52 92.05(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-10
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 10 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
06/11/12 <2.0 4.5 <2.0 <2.0 <3.0 <5.0 <200 947 7.55 91.82
12/11/12 4.2 57.0 <2.0 <2.0 <3.0 <5.0 <200 1,430 8.95 90.42
06/25/13 4.3 2.9 <2.0 <2.0 <3.0 2.3J <200 840 7.47 91.90
12/10/13 4.0 1.2 <2.0 <2.0 <3.0 4.1J <200 1,100 9.50 89.87
06/30/14 3.6 <1.0 <2.0 <2.0 <3.0 <5.0 <200 1,130 7.37 92.00
12/15/14 2.8 <1.0 <1.0 <1.0 <2.0 <5.0 32.3J 1,370 9.53 89.84
06/16/15 3.7 <1.0 <1.0 <1.0 <2.0 <5.0 64.5 951 6.50 92.87
12/11/15 3.4 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,440 7.77 91.60
06/12/17 1.6 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,470 6.25 93.12
09/27/17 4.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,510 6.33 93.04
12/11/18 1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 987 8.67 90.70
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 1,110 5.40 93.97
07/10/19 1.32 <1.0 <1.0 <1.0 <3.0 <5.0 <500 1,440 6.45 92.92
10/10/19 <5.0 <5.0 <5.0 <5.0 <15.0 <25 <100d 1,870 7.38 91.99
01/20/20 1,200 7.40 91.97
12/15/20 1,200 9.53 89.84
03/22/21 439 7.96 91.41
06/03/21 344 7.67 91.70
09/29/21 182 8.38 90.99
12/15/21 <100 9.36 90.01
02/24/22 640 8.85 90.52
05/10/22 286 8.05 91.32
09/29/22 191 7.30 92.07
12/01/22 176 8.68 90.69
03/21/23 235 5.98 93.39
06/28/23 406 6.50 92.87
09/29/23 185 7.35 92.02
12/05/23 <100 8.54 90.83
03/26/24 433 6.39 92.98
05/28/24 173 5.82 93.55
09/04/24 941 7.40 91.97
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-11 (no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 11 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
06/11/12 2.2 <1.0 <2.0 <2.0 <3.0 <5.0 <200 423 6.81 91.76
12/11/12 1.4J <1.0 <2.0 <2.0 <3.0 <5.0 <200 234 8.28 90.29
06/25/13 1.2J <1.0 <2.0 <2.0 3.6 <5.0 <200 176J 6.72 91.85
12/10/13 2.0 <1.0 <2.0 <2.0 <3.0 <5.0 <200 191 8.87 89.70
06/30/14 1.4J <1.0 <2.0 <2.0 <3.0 <5.0 <200 255 6.65 91.92
12/15/14 1.6 <1.0 <1.0 <1.0 <2.0 <5.0 <50 208 8.89 89.68
06/16/15 1.4 <1.0 <1.0 <1.0 <2.0 <5.0 <50 207 5.75 92.82
12/11/15 1.3 <1.0 <1.0 <1.0 <1.0 <4.0 <200 <190 7.00 91.57
06/13/17 1.4 <1.0 <1.0 <1.0 1.4 <4.0 <200 <200 5.58 92.99
09/27/17 0.94J <1.0 <1.0 <1.0 <1.0 <4.0 <200 <190 6.20 92.37
12/11/18 0.64J <1.0 <1.0 <1.0 <1.0 <4.0 <200 260 8.01 90.56
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 243 4.58 93.99
07/10/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 797 5.73 92.84
10/10/19 <5.0 <5.0 <5.0 <5.0 <15.0 <25 <100d 1,190 6.65 91.92
01/20/20 180 8.27 90.30
03/22/21 128 6.19 92.38
06/03/21 119 8.89 89.68
09/29/21 <100 7.70 90.87
12/14/21 240 9.87 88.70
02/24/22 3,220 8.79 89.78
05/10/22 455 7.30 91.27
09/29/22 359 6.54 92.03
12/01/22 521 8.00 90.57
03/21/23 2,150 5.20 93.37
06/28/23 298 5.82 92.75
09/28/23 467 6.50 92.07
12/05/23 236 7.88 90.69
03/26/24 704 5.59 92.98
05/28/24 1,390 5.07 93.50
09/04/24 416 6.65 91.92
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-12
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 12 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
12/15/20 <100 8.88
03/22/21 <100 7.54
06/03/21 <100 7.17
09/29/21 <100 7.89
12/14/21 <100 8.71
02/24/22 279 8.19
05/10/22 <100 7.59
09/29/22 <100 7.21 90.93
12/01/22 285 8.08 90.06
03/21/23 <100 5.45 92.69
06/28/23 <100 6.00 92.14
09/28/23 <100 6.60 91.54
12/05/23 <100 7.92 90.22
03/26/24 <100 5.84 92.30
05/28/24 <100 5.25 92.89
09/04/24 263 6.98 91.16
12/15/20 <100 7.53
03/22/21 <100 6.02
06/03/21 <100 5.61
09/29/21 <100 6.44
12/14/21 <100 7.33
02/24/22 <100 6.69
05/10/22 <100 6.06
09/29/22 <100 6.35 90.13
12/01/22 <100 6.78 89.70
03/21/23 <100 5.98 90.50
06/28/23 <100 4.57 92.23
09/29/23 <100 5.40 91.08
12/05/23 <100 6.59 89.89
03/26/24 <100 4.40 92.08
05/28/24 <100 3.85 92.63
09/04/24 325 5.45 91.03
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
MW-14
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
MW-13
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
(not analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 13 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
06/09/10 6.2 <1.0 <5.0 <1.0 <3.0 <5.0 <500 440 4.58 93.32
06/11/12 2.8 <1.0 <2.0 <2.0 <3.0 <5.0 <200 681c 6.37 91.53
12/11/12 2.4 <1.0 <2.0 <2.0 <3.0 <5.0 <200 176J 8.00 89.90
06/25/13 2.5 <1.0 <2.0 <2.0 <3.0 <5.0 <200 246 6.25 91.65
12/10/13 2.4 <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 8.58 89.32
06/30/14 2.2 <1.0 <2.0 <2.0 <3.0 <5.0 <200 <190 6.21 91.69
12/15/14 NS NS NS NS NS NS NS NS 8.59 89.31
06/16/15 NS NS NS NS NS NS NS NS 5.25 92.65
12/11/15 NS NS NS NS NS NS NS NS 6.43 91.47
06/12/17 NS NS NS NS NS NS NS NS 5.23 92.67
09/27/17 NS NS NS NS NS NS NS NS 5.72 92.18
12/11/18 NS NS NS NS NS NS NS NS 7.72 90.18
04/03/19 NS NS NS NS NS NS NS NS 3.93 93.97
07/10/19 NS NS NS NS NS NS NS NS 5.32 92.58
10/10/19 NS NS NS NS NS NS NS NS 6.19 91.71
01/20/20 424 6.10 91.80
12/17/20 <100 8.79 89.11
03/22/21 <100 6.63 91.27
06/03/21 <100 6.38 91.52
09/29/21 <100 7.35 90.55
12/14/21 <100 8.40 89.50
02/24/22 <100 7.52 90.38
05/10/22 <100 6.84 91.06
09/29/22 <100 5.99 91.91
12/01/22 801 7.80 90.10
03/21/23 <100 4.56 93.34
06/28/23 <100 5.40 92.50
09/28/23 <100 6.12 91.78
12/05/23 <100 7.45 90.45
03/26/24 <100 5.11 92.79
05/28/24 <100 4.63 93.27
09/04/24 918 6.22 91.68
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
MW-ows-2
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
(no longer analyzed as per DERR)
Broadbent 744 Analytical Tables 24 Page 14 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
11/11/10 5.1 24 1 <1 4.8 1.6 1,000 1,200 ----
06/06/11 1.6J 11.3 1.2J 0.92J 3.2J 9.1J <200 2,560 ----
12/19/11 4.4 3.7 <2.0 <2.0 <4.0 <5.0 <200 1,080 ----
06/12/12 4.6 8.7 <2.0 <2.0 <3.0 <5.0 <200 1,970 ----
12/11/12 3.2 48.6 <2.0 <2.0 <3.0 <5.0 <200 1,560 ----
06/25/13 2.6 3.4 <2.0 <2.0 2.9J 3.1J <200 2,210 ----
12/10/13 2.0 1.6 <2.0 <2.0 <3.0 <5.0 <200 680 ----
06/30/14 1.9J 0.67J <2.0 <2.0 <3.0 <5.0 <200 2,380 ----
12/15/14 1.2 <1.0 <1.0 <1.0 <2.0 <5.0 30.2J 1,310 ----
06/16/15 2.7 0.39J <1.0 <1.0 <2.0 <5.0 43.8J 1,770 ----
12/11/15 2.7 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,510 ----
06/12/17 <2.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 2,300 ----
09/27/17 1.0 <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,150 ----
12/11/18 0.76J <1.0 <1.0 <1.0 <1.0 <4.0 <200 1,210 ----
04/03/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 5,700 ----
07/10/19 <1.0 <1.0 <1.0 <1.0 <3.0 <5.0 <500 3,820 ----
10/10/19 <5.0 <5.0 <5.0 <5.0 <15.0 <25 <100d 2,330 ----
01/20/20 4,820 ----(no longer analyzed as per DERR)
BDS-1
(MW-2)
Broadbent 744 Analytical Tables 24 Page 15 of 16
MTBE Benzene Toluene Ethyl
Benzene
Total
Xylenes
Naphth-
alene TPH-GRO TPH-DRO
200 5 1,000 700 10,000 700 1,000 1,000
200 300 3,000 4,000 10,000 700 10,000 10,000RBCA Tier 1 SL
Date
UDEQ ISL
Relative
Groundwater
Elevation
(feet)
Well No.
MW-1
Depth to
Groundwater
(feet btoc)
Concentrations (µg/L)
TABLE 1
Groundwater Monitoring and Analytical Results
Flying J Travel Center No. 744
1172 West 21st South, West Haven, Weber County, Utah
B-1a 03/02/06 18 <2 <2 <2 <6 <2 <500 <500 NM --
B-2a 03/02/06 64 <2 <2 <2 <6 <2 <500 2,960 NM --
B-3a 03/02/06 24 199 42 275 1,040 1,305 3,460 169,000 NM --
B-4a 03/02/06 6.8 <1.0 <5.0 <1.0 <3.0 <5.0 6,300 47,000 NM --
B-5a 03/02/06 5.2 150 <25 <5.0 <15 <25 730 960 NM --
B-6a 03/02/06 NM --
B-7a 03/02/06 1.9 1 <5.0 <1.0 <3.0 <5.0 <100 220 NM --
B-9a 03/03/06 4.6 96 <10 2.5 24 22 420 470 NM --
B-10a 03/03/06 NM --
B-11a 03/03/06 <1.0 <1.0 <5.0 <1.0 <3.0 <5.0 <100 110 NM --
B-12a 03/03/06 43 <1.0 <5.0 <1.0 <3.0 <5.0 <100 <100 NM --
B-13a 03/03/06 100 13 <5.0 <1.0 8.8 6 450 1,000 NM --
B-14a 03/03/06 77 12 <5.0 <1.0 <3.0 <5.0 150 230 NM --
GW-1b 12/21/09 <25 160 <120 <25 <75 <120 3,400 20,000 9 --
B-15a 05/19/10 NA <1.0 <5.0 <1.0 <3.0 <5.0 <100 1,700 7.5 --
B-16a 05/19/10 NA 9.1 <5.0 <1.0 <3.0 <5.0 <100 810 7.0 --
B-17a 05/19/10 NA <1.0 <5.0 8.1 160 59 1,100 26,000 1.0 --
B-18a 05/19/10 NA 1.4 <5.0 <1.0 <3.0 <5.0 <100 1,200 7.2 --
B-19a 05/19/10 NA 1.2 <5.0 <1.0 <3.0 <5.0 <100 2,800 7.5 --
B-20a 05/19/10 NA <1.0 <5.0 <1.0 <3.0 <5.0 <100 1,800 7.5 --
Abbreviations and Notes:
µg/L = micrograms per liter
MTBE = methyl tertiary butyl ether
TPH-GRO = gasoline-range total petroleum hydrocarbons
TPH-DRO = diesel-range total petroleum hydrocarbons
btoc = below top of casing
--= Not applicable MW-1 15 5 to 15 100.51
<= analyte concentration is below the specified practical quantitation limit MW-2 14.5 4.5 to 14.5 100.85
BD-1 = blind duplicate sample for MW-2 MW-2 100.70
NM = not measured MW-3 12*5 to 15*98.96
NAPL = non-aqueous phase liquid MW-3R 13 3 to 13 98.75
NA = not analyzed for MW-4 15 5 to 15 100.49
UDEQ = Utah Department of Environmental Quality MW-4 100.18
ISL = Initial Screening Level MW-5 15 5 to 15 101.34
bold = sample result exceeds UDEQ ISLs MW-6 14.5 4.5 to 14.5 98.24
Depth to water values in italics indicate that water level is above screened interval MW-6 98.14
MW-7 15 5 to 15 100.00
Data reported prior to November 2010 was collected by Johnston Leigh Inc. (JLI)MW-8 15 5 to 15 100.06
Data reported prior to November 2010 was collected by ATC Group Services (ATC)MW-9 15 5 to 15 99.56
The depth to water reported for the 11-9-10 sampling event was collected MW-10 15 5 to 15 99.57
on 11-11-10 for wells MW-6, MW-7, MW-8, MW-9 and MW-10.MW-11 14.2 4.2 to 14.2 99.37
a = All samples labeled "B" in this table were previously labeled "GP" in the tables, MW-12 14.6 4.6 to 14.6 98.57
lab reports and CoCs by JLI MW-13 14.9 4.9 to 14.9 98.14
b = GW-1 sample is labeled SS-5@9ft in UST Closure rpt and CNG Excavation rpt, Jan 2010.MW-14 14.5 4.5 to 14.5 96.48
c = Sample prepared and analyzed out of hold time due to lab error.MWows-2 14.1 4.1 to 14.1 97.90
* discrepancy between log (screened 5 to 15 ft)
and measured depth to bottom of well (12 feet)
Top of
Casing
Elevation
(feet)
NAPL
(Highlighted wells resurveyed 1-30-19 by ATC)
d = Initial reported result (using 8270B method) had high dilutions and GRO detections in
the blank, skewing GRO results artificially high. Results for GRO shown are from second
analysis: samples were re-extracted and analyzed within hold by 8015 method.
Total
Well
Depth
(feet bgs)
(All wells resurveyed on 12-16-10 by Pangean-CMD)
NAPL
Well No.
Screened
Interval
(feet)
Broadbent 744 Analytical Tables 24 Page 16 of 16
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.00
2,000
4,000
6,000
8,000
10,000
12,000
De
c
-
0
5
De
c
-
0
6
De
c
-
0
7
De
c
-
0
8
De
c
-
0
9
De
c
-
1
0
De
c
-
1
1
De
c
-
1
2
De
c
-
1
3
De
c
-
1
4
De
c
-
1
5
De
c
-
1
6
De
c
-
1
7
De
c
-
1
8
De
c
-
1
9
De
c
-
2
0
De
c
-
2
1
De
c
-
2
2
De
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-
2
3
De
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GRAPH 2
MW-3/MW-3R TPH-DRO Concentration vs. Time
Flying J Travel Center No. 744
TPH-DRO Depth to Groundwater
Replacement
well 1-30-19
0.0
2.0
4.0
6.0
8.0
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12.00
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GRAPH 1
MW-2 TPH-DRO Concentration vs. Time
Flying J Travel Center No. 744
TPH-DRO Depth to Groundwater
Page 1 of 3
0.0
2.0
4.0
6.0
8.0
10.0
12.00
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
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GRAPH 4
MW-7 TPH-DRO Concentration vs. Time
Flying J Travel Center No. 744
TPH-DRO Depth to Groundwater
0.0
2.0
4.0
6.0
8.0
10.0
12.00
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
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DATE
GRAPH 3
MW-5 TPH-DRO Concentration vs. Time
Flying J Travel Center No. 744
TPH-DRO Depth to Groundwater
Page 2 of 3
0.0
2.0
4.0
6.0
8.0
10.0
12.00
200
400
600
800
1,000
1,200
1,400
1,600
1,800
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DATE
GRAPH 5
MW-11 TPH-DRO Concentration vs. Time
Flying J Travel Center No. 744
TPH-DRO Depth to Groundwater
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.00
500
1,000
1,500
2,000
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3,500
4,000
4,500
5,000
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GRAPH 6
MW-6 TPH-DRO Concentration vs. Time
Flying J Travel Center No. 744
TPH-DRO Depth to Groundwater
Page 3 of 3

APPENDIX A

FIELD METHODS

Page 1 of 4

QUALITY ASSURANCE/QUALITY CONTROL
FIELD METHODS

Field methods discussed herein were implemented to provide for accuracy and reliability of field
activities, data collection, sample collection, and handling. Discussion of these methods is
provided below.

1.0 EQUIPMENT CALIBRATION

Equipment calibration was performed per equipment manufacturer specifications before use.

2.0 DEPTH TO GROUNDWATER AND LIGHT NON-AQUEOUS PHASE LIQUID MEASUREMENT

Depth to groundwater was measured in wells identified for gauging in the scope of work using a
decontaminated water level indicator. The depth to water measurement was taken from a cut
notch or permanent mark at the top of the well casing to which the well head elevation was
originally surveyed.

Once depth to water was measured, an oil/water interface meter or a new disposable bailer was
utilized to evaluate the presence and, if present, to measure the “apparent” thickness of light
non-aqueous phase liquid (LNAPL) in the well. If LNAPL was present in the well, groundwater
purging and sampling were not performed, unless sampling procedures in the scope of work
specified collection of samples in the presence of LNAPL. Otherwise, time allowing, LNAPL was
bailed from the well using either a new disposable bailer, or the disposal bailer previously used
for initial LNAPL assessment. Bailing of LNAPL continued until the thickness of LNAPL (or volume)
stabilized in each bailer pulled from the well, or LNAPL was no longer present. After LNAPL
thickness either stabilized or was eliminated, periodic depth to water and depth to LNAPL
measurements were collected as product came back into the well to evaluate product recovery
rate and to aid in further assessment of LNAPL in the subsurface. LNAPL thickness
measurements were recorded as “apparent.” If a bailer was used for LNAPL thickness
measurement, the field sampler noted the bailer entry diameter and chamber diameter to
enable correction of thickness measurements. Recovered LNAPL was stored on-site in a labeled
steel drum(s) or other appropriate container(s) prior to disposal.

3.0 WELL PURGING AND GROUNDWATER SAMPLE COLLECTION

Well purging and groundwater sampling were performed in wells specified in the scope of work
after measuring depth to groundwater and evaluating the presence of LNAPL. Purging and
sampling were performed using one of the methods detailed below. The method used was
noted in the field records. Purge water was stored on-site in labeled steel drum(s) or other
appropriate container(s) prior to disposal or on-site treatment (in cases where treatment using
an on-site system is authorized).

Broadbent & Associates, Inc. Quality Assurance/Quality Control
Field Methods
Page 2 of 4
3.1 Purging a Predetermined Well Volume

Purging a predetermined well volume is performed per ASTM International (ASTM)
D4448-01. This purging method has the objective of removing a predetermined volume
of stagnant water from the well prior to sampling. The volume of stagnant water is
defined as either the volume of water contained within the well casing, or the volume
within the well casing and sand/gravel in the annulus if natural flow through these is
deemed insufficient to keep them flushed out.

This purging method involves removal of a minimum of three stagnant water volumes
from the well using a decontaminated pump with new disposable plastic discharge or
suction tubing, dedicated well tubing, or using a new disposable or decontaminated
reusable bailer. If a new disposable bailer was used for assessment of LNAPL, that bailer
may be used for purging. The withdrawal rate used is one that minimizes drawdown
while satisfying time constraints.

To evaluate when purging is complete, one or more groundwater stabilization
parameters are monitored and recorded during purging activities until stabilization is
achieved. Most commonly, stabilization parameters include temperature, conductivity,
and pH, but field procedures detailed in the scope of work may also include monitoring
of dissolved oxygen concentrations, oxidation reduction potential, and/or turbidity1.
Parameters are considered stable when two (2) consecutive readings recorded three (3)
minutes apart fall within ranges provided below in Table 1. In the event that the
parameters have not stabilized and five (5) well casing volumes have been removed,
purging activities will cease and be considered complete. Once the well is purged, a
groundwater sample(s) is collected from the well using a new disposable bailer. If a new
disposable bailer was used for purging, that bailer may be used to collect the sample(s).
A sample is not collected if the well is inadvertently purged dry.

Table 1. Criteria for Defining Stabilization of Water-Quality Indicator Parameters
Parameter Stabilization Criterion
Temperature ± 0.2ºC (± 0.36ºF)
pH ± 0.1 standard units
Conductivity ± 3%
Dissolved oxygen ± 10%
Oxidation reduction potential ± 10 mV
Turbidity1 ± 10% or 1.0 NTU (whichever is greater)

3.2 Low-Flow Purging and Sampling

“Low-Flow”, “Minimal Drawdown”, or "Low-Stress” purging is performed per ASTM
D6771-02. It is a method of groundwater removal from within a well’s screened interval
that is intended to minimize drawdown and mixing of the water column in the well

1 As stated in ASTM D6771-02, turbidity is not a chemical parameter and not i ndicative of when formation-quality water is being
purged; however, turbidity may be helpful in evaluating stress on the formation during purging. Turbidity measurements are t aken
at the same time that stabilization parameter measurements are made, or, at a minimum, once when purging is initiated and again
just prior to sample collection, after stabilization parameters have stabilized. To avoid artifacts in sample analysis, turb idity should
be as low as possible when samples are collected. If turbidity values are persistently high, the withdrawal rate is lowered until
turbidity decreases. If high turbidity persists even after lowering the withdrawal rate, the purging is stopped for a period of time
until turbidity settles, and the purging process is then restarted. If this fails to solve the problem, the purging/sampling process for
the well is ceased, and well maintenance or redevelopment is considered.

Broadbent & Associates, Inc. Quality Assurance/Quality Control
Field Methods
Page 3 of 4
casing. This is accomplished by pumping the well using a decontaminated pump with
new disposable plastic discharge or suction tubing or dedicated well tubing at a low flow
rate while evaluating the groundwater elevation during pumping.

The low flow pumping rate is well specific and is generally established at a volume that
is less than or equal to the natural recovery rate of the well. A pump with adjustable
flow rate control is positioned with the intake at or near the mid-point of the
submerged well screen. The pumping rate used during low-flow purging is low enough
to minimize mobilization of particulate matter and drawdown (stress) of the water
column. Low-flow purging rates will vary based on the individual well characteristics;
however, the purge rate should not exceed 1.0 Liter per minute (L/min) or 0.25 gallon
per minute (gal/min). Low-flow purging should begin at a rate of approximately
0.1 L/min (0.03 gal/min)2, or the lowest rate possible, and be adjusted based on an
evaluation of drawdown. Water level measurements should be recorded at approximate
one (1) to two (2) minute intervals until the low-flow rate has been established, and
drawdown is minimized. As a general rule, drawdown should not exceed 25% of the
distance between the top of the water column and the pump in-take.

To evaluate when purging is complete, one or more groundwater stabilization
parameters are monitored and recorded during purging activities until stabilization is
achieved. Most commonly, stabilization parameters include temperature, conductivity,
and pH, but field procedures detailed in the scope of work may also include monitoring
of dissolved oxygen concentrations, oxidation reduction potential, and/or turbidity1.
The frequency between measurements will be at an interval of one (1) to three (3)
minutes; however, if a flow cell is used, the frequency will be determined based on the
time required to evacuate one cell volume. Stabilization is defined as three (3)
consecutive readings recorded several minutes apart falling within ranges provided in
Table 1. Samples will be collected by filling appropriate containers from the pump
discharge tubing at a rate not to exceed the established pumping rate.

3.3 Minimal Purge, Discrete Depth, and Passive Sampling

In accordance with ASTM D4448-01, sampling techniques that do not rely on purging, or
require only minimal purging, may be used if a particular zone within a screened interval
is to be sampled or if a well is not capable of yielding sufficient groundwater for purging.
To properly use these sampling techniques, a water sample is collected within the
screened interval with little or no mixing of the water column within the casing. These
techniques include minimal purge sampling which uses a dedicated sampling pump
capable of pumping rates of less than 0.1 L/min (0.03 gal/min)2, discrete depth sampling
using a bailer that allows groundwater entry at a controlled depth (e.g. differential
pressure bailer), or passive (diffusion) sampling. These techniques are based on certain
studies referenced in ASTM D4448-01 that indicate that under certain conditions,
natural groundwater flow is laminar and horizontal with little or no mixing within the
well screen.

2 According to ASTM D4448-01, studies have indicated that at flow rates of 0.1 L/min, low -density polyethylene (LDPE) and
plasticized polypropylene tubing materials are prone to sorption. Therefore, TFE -fluorocarbon or other appropriate tubing material
is used, particularly when tubing lengths of 50 feet or longer are used.

Broadbent & Associates, Inc. Quality Assurance/Quality Control
Field Methods
Page 4 of 4

4.0 DECONTAMINATION

Reusable groundwater sampling equipment were cleaned using a solution of Alconox or other
acceptable detergent, rinsed with tap water, and finally rinsed with distilled water prior to use in
each well. Decontamination water was stored on-site in appropriately labeled DOT approved
steel drum(s) or other appropriate container(s) prior to disposal.

5.0 SAMPLE CONTAINERS, LABELING, AND STORAGE

Samples were collected in laboratory prepared containers with appropriate preservative (if
preservative was required). Samples were labeled (site name, sample I.D., sampler initials, date,
and time of collection) and stored chilled (refrigerator or ice chest with ice) until delivery to a
certified laboratory, under chain of custody procedures.

6.0 CHAIN OF CUSTODY RECORD AND PROCEDURE

The field sampler was personally responsible for care and custody of the samples collected until
they were properly transferred to another party. To document custody and transfer of samples,
a Chain of Custody Record was prepared. The Chain of Custody Record provided identification of
the samples corresponding to sample labels and specified analyses to be performed by the
laboratory. The original Chain of Custody Record accompanied the shipment, and a copy of the
record was stored in the project file. When the samples were transferred, the individuals
relinquishing and receiving them signed, dated, and noted the time of transfer on the record.

7.0 FIELD RECORDS

Daily Report and data forms were completed by staff personnel to provide daily record of
significant events, observations, and measurements. Field records were signed, dated, and
stored in the project file.

APPENDIX B

FIELD DATA SHEETS

APPENDIX C

LABORATORY REPORT
AND CHAIN-OF-CUSTODY DOCUMENTATION
ANALYTICAL REPORT
September 16, 2024
Broadbent & Associates - UT Pilot
Sample Delivery Group:L1775341
Samples Received:09/07/2024
Project Number:744-605-18
Description:Flying J 744 - West Haven, UT
Site:19-14-104
Report To:Aric Morton
186 E Main St.
Sandy, UT 84070
Entire Report Reviewed By:
September 16, 2024
[Preliminary Report]
Jeff Carr
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:
Broadbent & Associates - UT Pilot 744-605-18 L1775341 09/16/24 20:27 1 of 22
September 17, 2024
Jeff Carr
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Broadbent & Associates - UT Pilot 744-605-18 L1775341 09/17/24 06:32 1 of 22
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-1 L1775341-01 6
MW-2 L1775341-02 7
MW-3R L1775341-03 8
MW-5 L1775341-04 9
MW-6 L1775341-05 10
MW-7 L1775341-06 11
MW-9 L1775341-07 12
MW-11 L1775341-08 13
MW-12 L1775341-09 14
MW-13 L1775341-10 15
MW-14 L1775341-11 16
MW-OWS2 L1775341-12 17
Qc: Quality Control Summary 18
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 18
Gl: Glossary of Terms 19
Al: Accreditations & Locations 20
Sc: Sample Chain of Custody 21
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Broadbent & Associates - UT Pilot 744-605-18 L1775341 09/16/24 20:27 2 of 22
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Broadbent & Associates - UT Pilot 744-605-18 L1775341 09/17/24 06:32 2 of 22
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-1 L1775341-01 GW Sarah Hamilton 09/04/24 12:10 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/14/24 20:34 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-2 L1775341-02 GW Sarah Hamilton 09/04/24 11:35 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/14/24 20:54 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-3R L1775341-03 GW Sarah Hamilton 09/04/24 11:10 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/14/24 21:15 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-5 L1775341-04 GW Sarah Hamilton 09/04/24 10:10 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/16/24 13:52 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-6 L1775341-05 GW Sarah Hamilton 09/04/24 17:15 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 5 09/13/24 16:16 09/15/24 00:16 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-7 L1775341-06 GW Sarah Hamilton 09/04/24 14:20 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/14/24 21:55 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-9 L1775341-07 GW Sarah Hamilton 09/04/24 15:35 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/16/24 13:31 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-11 L1775341-08 GW Sarah Hamilton 09/04/24 16:40 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/16/24 14:12 MAA Mt. Juliet, TN
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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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Broadbent & Associates - UT Pilot 744-605-18 L1775341 09/17/24 06:32 3 of 22
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-12 L1775341-09 GW Sarah Hamilton 09/04/24 16:10 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/16/24 14:32 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-13 L1775341-10 GW Sarah Hamilton 09/04/24 10:40 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/14/24 22:35 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-14 L1775341-11 GW Sarah Hamilton 09/04/24 13:55 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/14/24 22:55 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-OWS2 L1775341-12 GW Sarah Hamilton 09/04/24 13:30 09/07/24 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2361715 1 09/13/24 16:16 09/14/24 23:16 DMG 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]
Jeff Carr
Project Manager
Sample Delivery Group (SDG) Narrative
pH outside of method requirement.
Lab Sample ID Project Sample ID Method
L1775341-08 MW-11 3511/8015
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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Jeff Carr
Project Manager
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SAMPLE RESULTS - 01
L1775341
MW-1
Collected date/time: 09/04/24 12:10
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 147 100 1 09/14/2024 20:34 WG2361715
(S) o-Terphenyl 74.2 52.0-156 09/14/2024 20:34 WG2361715
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
L1775341
MW-2
Collected date/time: 09/04/24 11:35
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 400 100 1 09/14/2024 20:54 WG2361715
(S) o-Terphenyl 82.6 52.0-156 09/14/2024 20:54 WG2361715
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
L1775341
MW-3R
Collected date/time: 09/04/24 11:10
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 735 100 1 09/14/2024 21:15 WG2361715
(S) o-Terphenyl 93.2 52.0-156 09/14/2024 21:15 WG2361715
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
L1775341
MW-5
Collected date/time: 09/04/24 10:10
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 169 100 1 09/16/2024 13:52 WG2361715
(S) o-Terphenyl 75.3 52.0-156 09/16/2024 13:52 WG2361715
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
L1775341
MW-6
Collected date/time: 09/04/24 17:15
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 1300 500 5 09/15/2024 00:16 WG2361715
(S) o-Terphenyl 75.3 52.0-156 09/15/2024 00:16 WG2361715
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 06
L1775341
MW-7
Collected date/time: 09/04/24 14:20
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 734 100 1 09/14/2024 21:55 WG2361715
(S) o-Terphenyl 76.3 52.0-156 09/14/2024 21:55 WG2361715
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
L1775341
MW-9
Collected date/time: 09/04/24 15:35
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 139 100 1 09/16/2024 13:31 WG2361715
(S) o-Terphenyl 80.0 52.0-156 09/16/2024 13:31 WG2361715
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 08
L1775341
MW-11
Collected date/time: 09/04/24 16:40
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 941 100 1 09/16/2024 14:12 WG2361715
(S) o-Terphenyl 93.2 52.0-156 09/16/2024 14:12 WG2361715
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 09
L1775341
MW-12
Collected date/time: 09/04/24 16:10
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 416 100 1 09/16/2024 14:32 WG2361715
(S) o-Terphenyl 76.8 52.0-156 09/16/2024 14:32 WG2361715
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 10
L1775341
MW-13
Collected date/time: 09/04/24 10:40
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 263 100 1 09/14/2024 22:35 WG2361715
(S) o-Terphenyl 80.5 52.0-156 09/14/2024 22:35 WG2361715
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 11
L1775341
MW-14
Collected date/time: 09/04/24 13:55
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 325 100 1 09/14/2024 22:55 WG2361715
(S) o-Terphenyl 65.3 52.0-156 09/14/2024 22:55 WG2361715
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 12
L1775341
MW-OWS2
Collected date/time: 09/04/24 13:30
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
DRO w/ SGT 918 100 1 09/14/2024 23:16 WG2361715
(S) o-Terphenyl 75.3 52.0-156 09/14/2024 23:16 WG2361715
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2361715
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 L1775341-01,02,03,04,05,06,07,08,09,10,11,12
Method Blank (MB)
(MB) R4120204-1 09/14/24 16:51
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
DRO w/ SGT U 24.7 100
(S) o-Terphenyl 81.5 52.0-156
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4120204-2 09/14/24 17:11 • (LCSD) R4120204-3 09/14/24 17:32
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
DRO w/ SGT 1500 1250 1320 83.3 88.0 50.0-150 5.45 20
(S) o-Terphenyl 67.0 70.0 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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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.
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
The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG.
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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