DERR-2024-012592

Stantec Consulting Services Inc.
2890 East Cottonwood Parkway
Suite 300
Salt Lake City UT 84121-7283
November 22, 2024
Project/File: 203723863
David Wilson
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
Petroleum Storage Tank Branch
PO Box 144840
Salt Lake City, Utah 84114-4840
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
Dear Mr. Wilson,
On behalf of 7-Eleven, Inc. (7-Eleven), Stantec Consulting Services Inc. (Stantec) is pleased to present this
Underground Storage Tank (UST) Closure Report for 7-Eleven No. 47149 (Speedway No. 9411) (the Site).
The Site is located at 12592 South 1300 West, Riverton, Utah. The Utah Department of Environmental
Quality (UDEQ), Division of Environmental Response and Remediation (DERR) identifies the Site as
Facility ID 4001842. UST system removal activities were conducted on July 9 and 10, 2024 in accordance
with Utah Administrative Code R311-204 and R311-205 pertaining to UST closure and site assessments.
Stantec provided environmental supervision and subcontracted Pacific West Environmental of Salt Lake
City to conduct UST system removal activities. Please note that this report solely documents UST system
closure by removal activities.
PURPOSE AND SCOPE OF WORK
This report documents the decommissioning and removal of the underground UST system and associated
surface fuel sales equipment from the Site. Stantec prepared and submitted a UST Closure Plan to the
Petroleum Storage Tank Branch of the UDEQ-DERR. A copy of the UDEQ-DERR approval letter is
provided in Attachment A. Stantec’s scope of work for the UST system removal included the following
tasks:
Procurement of a UDEQ-DERR certified UST remover contractor.
Filing a Closure Plan with the UDEQ-DERR.
Preparation of a site-specific Health and Safety Plan.
Observation of UST system removal activities.
Collection and submission of soil closure samples for laboratory analysis in accordance with applicable
UDEQ-DERR regulations.
Submission of the Closure Notice to the UDEQ-DERR.
Preparation of this report documenting the UST system removal activities and sampling results.
November 22, 2024
Page 2 of 5
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
BACKGROUND AND SITE DESCRIPTION
The property is leased by 7-Eleven and is occupied by a convenience store building with historical
retail gasoline and diesel sales. 7-Eleven ceased operations at the Site in April 2024. The former UST
system was installed in 2013 and stored various grades of unleaded gasoline and diesel. The former
UST system at the Site consisted of one 15,000-gallon single walled fiberglass reinforced plastic (FRP)
UST containing gasoline and one 15,000-gallon single walled FRP split-UST with an 8,000-gallon
gasoline compartment and a 7,000-gallon diesel compartment. Additionally, the system consisted of
single-wall FRP piping, vent lines, four product dispenser islands and associated sumps and spill
buckets. The former USTs were located in the southeastern portion of the Site. The former
dispenser islands were located beneath a canopy west of the tank basin. The convenience store
building is located in the western portion of the Site.
The Site is covered with asphalt and concrete except for landscaped areas located along the perimeter
of the Site. The Site is located at the intersection of 12600 South and 1300 West in a mixed commercial
and residential area of Riverton. At the time of the UST system removal, the Site was surrounded by
residential areas to the north and west. Commercial properties are located south of 12600 South and
east of 1300 West.
The site is located in the SE ¼ of the SE ¼ of Section 27, Township 3 South, Range 1 West of the
Salt Lake Principal Meridian, Utah. The topography in the vicinity of the Site slopes gently up to the
southeast. The ground surface elevation is approximately 4,414 feet above mean sea level. Figure 1
shows the location of Site structures, the former UST system, closure soil sample locations, and
underground and aboveground utilities.
UST SYSTEM REMOVAL
On April 16, 2024, unsold gasoline product was emptied from the tanks to the extent practical.
Product dispensers were removed by Westech Fuel Equipment prior to Stantec and Pacific West
arriving on site. On July 8, 2024, Pacific West removed the concrete overlying the underground UST
system components; Pacific West then removed pea gravel to expose the tank tops and cleaned and
rinsed the USTs to remove any residual product. Approximately 622 gallons of tank rinsate and residual
product were transported and disposed of at Sump & Trap Cleaning LLC of Salt Lake City. A copy of
the UST rinsate non-hazardous waste manifest is provided in Attachment B.
On July 9 and 10, 2024, both USTs, product piping, vent lines, four dispenser islands, and
associated sumps and spill buckets were closed by removal. Greg Neville of Pacific West was the
certified tank remover (Utah Certified Tank Remover No. TR-0244). The UST Closure Notice
documenting UST system removal activities was submitted to UDEQ-DERR on October 7, 2024 and is
provided in Attachment C. Prior to removal, the USTs were rendered inert using approximately 400
pounds (approximately 200 pounds per tank) of dry ice (solid CO2). Pacific West then checked the lower
explosive limit and oxygen levels in both tanks prior to removal; this method was previously approved
by the Unified Fire Authority. Upon exposure and visual inspection of the USTs and product delivery
piping, all appeared to be in good overall condition, and no apparent failures were observed. All tanks
were subsequently crushed by Pacific West, loaded into a dump truck and transported to Ace
Intermountain Recycling Center. Disposal receipts for both USTs and piping are included in
Attachment D.
November 22, 2024
Page 3 of 5
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
Following UST system removal, soil screening, and closure sample collection, the UST system excavation
was backfilled. The excavation was backfilled with non-impacted overburden and imported self-compacting
fill as needed to five feet below the base of the existing pavement. Geotextile fabric was then installed
before the remainder of the excavation was backfilled with road-base in order to achieve compaction.
Compaction testing was performed by Kleinfelder on July 10, 2024 under the direction of Pacific West.
Compaction testing results are included as Attachment E. The results indicate that at least 95% relative
compaction was achieved at each of the two test areas. Repaving over the UST system excavation area
was completed on July 19, 2024.
CLOSURE SAMPLING
In addition to visual screening, Site soils associated with the UST system were screened for organic vapors
with a Rae Systems Inc. MiniRae 3000 volatile organic compound monitor equipped with a photoionization
detector (PID). Elevated PID readings were detected at SS-5 (149.0 parts per million [ppm] at 4 feet) and
at SS-7 (114.0 ppm at 4 feet). Based on field screening results, Pacific West over excavated at soil sample
locations SS-5 and SS-7. No other elevated PID readings or hydrocarbon odors observed in fill or native
soils associated with the UST basin, piping, and dispenser island excavations. Groundwater was not
encountered during UST removal activities.
On July 9 and 10, 2024, Stantec personnel collected a total of 14 closure samples (11 soil samples SS-1
through SS-11 and three Unified Soil Classification [USC] system samples USC-1 through USC-3). All
samples were collected by a UDEQ-DERR certified soil and groundwater sampler in general accordance
with the UDEQ-DERR approved UST Closure Plan. Closure soil and USC samples were collected by
Stantec from the subcontractor’s excavator bucket. Impacted soil encountered near dispenser soil samples
SS-5 and SS-7 were excavated until field screening indicated all impacted soil had been removed. Soil
samples SS-5 and SS-7 were collected after excavation and serve as confirmation samples. Approximately
54 tons of impacted soils were disposed of at the ET Technologies Soil Regeneration Site. Soil disposal
manifests are included as Attachment F.
USC samples were collected into quart-size zip to seal type plastic bags, labeled with sample identification,
type of analysis, date, and time of sampling, and transported to Utah-certified Chemtech-Ford Analytical
Laboratories (Chemtech) of Sandy, Utah. USC samples were submitted for USC classification by ASTM-
D2487.
Soil samples were collected into clean, laboratory supplied glass jars. Each sample container was then
labeled with sample identification, type of analysis, date, and time of sampling, stored in an ice-chilled
cooler, and shipped under chain-of-custody protocol to Utah-certified Pace Analytical National Laboratories
(Pace) of Mount Juliet, Tennessee. Soil samples were submitted for analysis of gasoline-range total
petroleum hydrocarbons (TPH-GRO), methyl tertiary butyl ether, benzene, toluene, ethyl benzene, total
xylenes, and naphthalene by EPA Method 8260B and diesel-range total petroleum hydrocarbons (TPH-
DRO) by EPA Method 8015. Soil samples were also analyzed for total solids by Standard Method 2540G.
ANALYTICAL RESULTS
Native soils were classified as clay. USC-1 and USC-2 were classified as lean clay and USC-3 was
classified as fat clay. Analytical results for environmental samples SS-1 through SS-11 are summarized in
Table 1. Closure sample locations are shown on Figure 1. Complete laboratory results and chain-of-
November 22, 2024
Page 4 of 5
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
custody documentation are included as part of the Closure Notice submitted to UDEQ-DERR
(Attachment C). No petroleum hydrocarbon concentrations above UDEQ-DERR Initial Screening Levels
(ISLs) were reported in native soil samples collected following UST system removal and over excavation
activities. All soil analytical laboratory reporting levels (RLs) were below ISLs.
CLOSING REMARKS
Two 15,000-gallon single-wall FRP USTs were removed and disposed of on July 9 and 10, 2024. During
UST removal activities, a total of 14 closure samples were collected and submitted to the project
laboratories. Approximately 54 tons of impacted soils were excavated and disposed of off site.
Groundwater was not encountered during excavation. Analytical laboratory results indicated no petroleum
hydrocarbon impacted soils remain on-site with concentrations above UDEQ-DERR ISLs.
Based on field screening and over excavation results, Stantec reported a release to UDEQ-DERR on July
10, 2024. UDEQ-DERR documented the incident as Spill Report No. 19163 (Attachment G) and
subsequently assigned Release Site OKZ to the release. UDEQ-DERR requested Stantec provide closure
sampling analytical laboratory results once received. Upon receipt of closure sampling analytical laboratory
results, UDEQ-DERR closed Release Site OKZ and provided 7-Eleven with a No Further Action letter
(Attachment H).
LIMITATIONS AND CERTIFICATION
The conclusions in the Report titled 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage
Tank Closure Report are Stantec’s professional opinion, as of the time of the Report, and concerning the
scope described in the Report. The opinions in the document are based on conditions and information
existing at the time the scope of work was conducted and do not take into account any subsequent changes.
The Report relates solely to the specific project for which Stantec was retained and the stated purpose for
which the Report was prepared. The Report is not to be used or relied on for any variation or extension of
the project, or for any other project or purpose, and any unauthorized use or reliance is at the recipient’s
own risk.
Stantec has assumed all information received from 7-Eleven (the “Client”) and third parties in the
preparation of the Report to be correct. While Stantec has exercised a customary level of judgment or due
diligence in the use of such information, Stantec assumes no responsibility for the consequences of any
error or omission contained therein.
This Report is intended solely for use by the Client in accordance with Stantec’s contract with the Client.
While the Report may be provided to applicable authorities having jurisdiction and others for whom the
Client is responsible, Stantec does not warrant the services to any third party. The report may not be relied
upon by any other party without the express written consent of Stantec, which may be withheld at Stantec’s
discretion.
November 22, 2024
Page 5 of 5
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
If you have any questions or require any additional information, please contact Anna Skinner at
[phone].
Sincerely,
Anna Skinner
Project Manager
Certified UST Consultant #CC0271
Attachments:
Figure 1 Site Plan
Table 1 UST Closure Soil Analytical Results
Attachment A Closure Plan Approval Letter
Attachment B Non-Hazardous Waste Manifest
Attachment C Closure Notice
Attachment D UST Disposal Receipts
Attachment E Compaction Testing Results
Attachment F Impacted Soil Waste Manifests
Attachment G UDEQ-DERR Spill Report
Attachment H NFA Letter
November 22, 2024
Figure
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
FIGURE
RUL
CANOPY/DISPENSERS
PUL
DSL
CAR WASH
SPEEDWAY
Store No. 9411
W 12600 S
S
1
3
0
0

W
DUMPSTER
UTILITY CONNECTION BOXES
STORE SIGN
UST VENTS
STORE
SIGN
UTILITY CONNECTION BOX
AIR/VACUUM
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
-SIDEWALK-
-S
I
D
E
W
A
L
K
-
-ASPHA
L
T
-
-ASPHA
L
T
-
-ASP
H
A
L
T
-
-ASPHA
L
T
-
-ASPHA
L
T
-
CONCRETE
UST AREA
P
P
P
P
FOR:
CHECKED BY:DRAWN BY:JOB NUMBER:APPROVED BY:DATE:
FIGURE:
1SITE MAP
SYJMCCL/AS203723863 10/2/2024
SPEEDWAY No. 9411
12592 S. 1300 W
RIVERTON, UTAH 84065
N
0 20 40
APPROXIMATE SCALE IN FEET
No warranty is made by Stantec as to the accuracy, reliability, or completeness of these data. Original data were compiled from
various sources. This information may not meet National Map Accuracy Standards. This product was developed electronically, and
may be updated without notification. Any reproduction may result in a loss of scale and or information.
FILEPATH:\\us0395-ppfss01\shared_projects\203723863\05_report_deliv\drawings_design\cad_fig\Speedway 9411.dwg|cclee|Apr 18, 2024 at 15:07|Layout: 9411-SM
410 17th Street Suite 1400Denver, Colorado 80202
LEGEND:
STORM WATER
POTABLE WATER / METER
NATURAL GAS / METER
SEWER / CLEANOUT
COMMUNICATION
ELECTRICAL
APPROXIMATE PROPERTY BOUNDARY
PRODUCT LINE
FIRE HYDRANT
SITE LAMP
STORM DRAIN
CLOSURE SAMPLE LOCATION
P
SS-6
SS-5/USC-3
SS-7
SS-8
SS-1/USC-1
SS-9
SS-2
SS-10SS-4SS-4
SS-11
P P
P
P P
P
P P
P
-CONC
R
E
T
E
-
P
P
P
P
P
P
PP
SS-3/USC-2
PPP
PPPPP
P
November 22, 2024
Table
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
TABLE
SS-1 16 07/09/24 <0.00128 <0.00128 <0.00638 <0.00128 <0.00383 <0.00638 <0.638 <5.10
SS-2 16 07/09/24 <0.00127 <0.00127 <0.00635 <0.00127 <0.00381 <0.00635 <0.635 <5.08
SS-3 4 07/10/24 <0.00116 0.00906 <0.00581 0.00230 <0.00349 <0.00581 <0.581 11.9
SS-4 4 07/09/24 <0.00118 0.00590 <0.00590 0.0226 <0.00354 0.0138 <0.590 <4.72
SS-5 4 07/09/24 <0.00124 0.00423 <0.00619 0.00134 <0.00371 <0.00619 <0.619 <4.95
SS-6 4 07/09/24 <0.00121 0.00489 <0.00603 0.00162 <0.00362 <0.00603 <0.603 <4.83
SS-7 4 07/09/24 <0.00121 0.00720 <0.00606 0.746 0.0943 0.0390 1.72 10.1
SS-8 4 07/09/24 <0.00119 0.00716 <0.00594 0.0124 0.00957 <0.00594 <0.594 <4.76
SS-9 16 07/09/24 <0.00128 <0.00128 <0.00639 <0.00128 <0.00384 <0.00639 <0.639 <5.11
SS-10 16 07/09/24 <0.00131 <0.00131 <0.00655 <0.00131 <0.00393 <0.00655 <0.655 <5.24
SS-11 4 07/09/24 <0.00127 <0.00127 <0.00634 <0.00127 <0.00380 <0.00634 <0.634 <5.07
0.3 0.2 9 5 142 51 150 150
0.3 0.9 25 23 142 51 1,500 1,500
All concentrations are listed in units of milligrams per kilogram (mg/Kg).
Explanation of Abbreviations:
bgs = below ground surface
MTBE = methyl tertiary butyl ether
TPH-GRO = gasoline-range total petroleum hydrocarbons
UDEQ = Utah Department of Environmental Quality
DERR = Department of Environmental Response and Remediation
ISL = Initial Screening Level
TSL = Tier 1 Screening Level
<= analyte not detected above the specified laboratory reporting limit
bold = analyte detected above the specified laboratory reporting limit
bold = analytical result exceeds the specified UDEQ DERR ISL
bold = analytical result exceeds the specified UDEQ DERR ISL and TSL
TPH-DRO
Riverton, Utah
12592 South 1300 West
7-Eleven No. 47149 (Speedway No. 9411)
UST Closure Soil Analytical Results
UDEQ DERR TSL
UDEQ DERR ISL
MTBESample
Location
Date
Sampled
Depth
(feet bgs)Benzene TPH-GRONaphthaleneTotal XylenesEthylbenzeneToluene
Table 1
fnl_47149_dbs.xlsx Soil 1 of 1 Stantec Consulting Services Inc.
November 22, 2024
Attachment A
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
ATTACHMENT A
Closure Plan Approval Letter
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144840 • Salt Lake City, UT 84114-4840
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah
SPENCER J. COX
Governor
DEIDRE HENDERSON
Lieutenant Governor
Department of
Environmental Quality
Kimberly D. Shelley
Executive Director
DIVISION OF ENVIRONMENTAL
RESPONSE AND REMEDIATION
Brent H. Everett
Director
ERRP-176-24
May 8, 2024
Marc Westfall
TRMC Retail, LLC
500 Speedway Drive
Enon, Ohio 45323
Re: Closure Plan Approval for Petroleum Storage Tanks No. 5, 5a, & 5b
Speedway No. 9411, located at 12592 South 1300 West, Riverton, Utah
Facility Identification No. 4001842
Dear Mr. Westfall:
The Closure Plan for the above-referenced facility, received by the Division of
Environmental Response and Remediation (DERR) on May 6, 2024, has been approved subject to
the noted modifications, if any. The DERR office must be notified three (3) business days before
beginning closure activities. The local fire department and other local agencies may have additional
requirements for closure or may charge inspection fees.
The Closure Plan Approval is effective for a period of one year from the date of approval.
If closure does not take place within one year, submittal of a new Closure Plan will be required,
unless otherwise approved by the Division Director.
Any change to the approved Closure Plan must be submitted, in writing, and approved by
the Division Director before implementation. If contamination is suspected or found during closure
activities, you must report it to the DERR at [phone] within 24 hours of discovery.
Enclosed is a copy of the Closure Notice Form, which must be completed and submitted to
the Division Director after the closure is performed. Please submit the environmental and Unified
Soil Classification sample analysis data and chain-of-custody forms with the Closure Notice as soon
as possible, but no later than 90 days after tank closure. Also, a final Site Plat that meets the
requirements outlined in R311-204-4(2)(b) must be submitted with the Closure Notice.
Facility ID# 4001842
Page 2
If you have any questions, please contact David Wilson, the DERR project manager, at
801) 536-4100.
Sincerely,
Brent H. Everett, Director
Division of Environmental Response and Remediation
BHE/DJW/ss
Enclosure: Closure Notice Form
cc: Dorothy Adams, Interim Executive Director, Salt Lake County Health Department
Ron Lund, Environmental Health Director, Salt Lake County Health Department
Dominic Burchett, Fire Chief, Unified Fire Authority
t:J
November 22, 2024
Attachment B
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
ATTACHMENT B
Non-Hazardous Waste Manifest
November 22, 2024
Attachment C
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
ATTACHMENT C
Closure Notice
1
PETROLEUM STORAGE TANK PERMANENT CLOSURE NOTICE (rev. 10/21) FACILITY ID# .
…
State Use Only
Date Processed by
Date Mailed to LHD
LUST ID#
Date to LUST Review
Closure Notice prepared at the request of the owner/operator (identified below) by
of (company name) Phone #
Address City State Zip
TANKS CLOSED
Piping Only Tank #
Please complete for each tank
Type (Steel,FRP,etc.)
Date Installed
Capacity (Gallons)
Substance stored*
Date last operated
Date Closed
Removed/In Place/Change in
Service (CIS)?
*Indicate the specific substance stored in each tank to be closed (regular, unleaded, diesel, waste oil, etc.)
CLOSURE INFORMATION
Fuel was emptied Sludge was removed Tank was cleaned
Tank was: Purged Inerted Method Used:
Location of Closure Records:
For In-Place Closure: tanks filled with:
For Change-In-Service: Substance to be stored:
FACILITY INFORMATION
Tank Owner Phone #
Address City State Zip
Facility Name
Address City State Zip
Contact person Phone #
Total number of regulated petroleum storage tanks at this site before closure
Total number of regulated petroleum storage tanks at this site after closure
TANK REMOVER Name Cert. # TR Exp. Date
Company Phone #
Address City State Zip
SOIL/GROUNDWATER SAMPLER Name Cert. # GS Exp. Date
Company Phone #
Address City State Zip
Josie Messersmith
Stantec Consulting Inc.[phone]
2890 East Cottonwood Parkway, Suite 300 SLC UT 84121
TRMC Retail LLC [phone]
500 Speedway Drive Enon OH 45323
Speedway No. 9411
12592 S 1300 W Riverton UT 84065
3
0
4 5a 5b
FRP FRP FRP
9/23/2013 9/23/2013 9/23/2013
15000 7000 8000
GASOLINE GASOLINE DIESEL
7/9/2024 7/9/2024 7/9/2024
4/16/2024 4/16/2024 4/16/2024
REMOVED REMOVED REMOVED
Greg Neville -0244 10-1-2024
Pacific West Environmental and Infrastructure 801-972-2727
1555 W 2200 S, Ste A SLC UT 84119
Steve Yorgason 1630 4/15/2025
Stantec Consulting Services [phone]
2890 E Cottonwood Parkway, Suite 300 SLC UT 84121
X X X
X Dry Ice
Stantec Consulting Inc.
NA
NA
4001842
Mark Westfall [phone]
2
DISPOSAL SITES USED
Location Name Contact Name Phone # Date Amount
Tank(s) Tank #
Product From Tank(s)
Contaminated Water
From Tank Cleaning
Sludge
Contaminated Water
From Excavation
Contaminated Soil
SITE ASSESSMENT
Complete the Facility Site Plat (Closure Notice) and Sample Information Table (Closure Notice) on pages 3 and 4 to show the locations,
depths, and other information on all soil/groundwater samples taken for closure. The samples must be consistently identified by sample ID #
on the site plat, table, and lab analysis report.
Completed Facility Site Plat (Closure Notice) is attached.
The following must be included (enter the distance, and direction (N,S,E,W) from the area of contamination or, where applicable,
use OH for overhead, NP for not present):
Water Line Sewer Line Natural Gas Storm Drain Telephone Electrical Property Line Buildings
Completed Sample Information Table (Closure Notice) is attached.
Certified lab analytical environmental sample results are attached.
Unified Soil Classification (USC) sample results are attached.
Chain of Custody form is attached.
Samples were properly: Collected Labeled Packaged Transported
Samples were in sight of the person in custody at all times or in a secured locked place.
I certify under penalty of law that the closure site assessment at this facility was conducted in accordance with 40 CFR
280.52, 40 CFR 280.72, and U.A.C. R311-205, and that any additional samples required by 40 CFR 280.52, 40 CFR 280.72 and
U.A.C. R311-205-2(1)(a) were properly collected.
Signature of Certified Groundwater/Soil Sampler
Full name of Certified Sampler Date
If contamination at the facility is confirmed, any person providing remedial assistance for a fee must be a Certified UST Consultant. The
Certified UST Consultant providing assistance is:
CERTIFIED UST CONSULTANT
Name Cert. #CC Exp. Date
Company Address
City State Zip Phone #
Please explain any unusual circumstances that occurred during the site assessment or closure:
ACE Intermountain Recycling Center Scale House [phone] 7/10 & 7/292024
de minimis --------
STC Industrial Services, Inc Shane Adolf [phone] 07/09/2024
3
622 gallons
NA
NA
ET Technologies Soil Regeneration Site
--
--
Sarah Smart
--
--
[phone]
--
--
7/15/2024
--
--
53.68 tons
Stantec Consulting Inc.2890 East Cottonwood Parkway, Suite 300
SLC UT 84121
NP NP NP NP NP NP 37N 66W
X
X
X
X
X
X X X X
X
Steve Yorgason
Anna Skinner 0271 12/31/2026
[phone]
Groundwater not encountered in UST excavation as expected; additional soil samples (SS-9 and SS-10) collected.
Impacted soils were encountered in the vicinity of the dispensers associated with samples SS-5 and SS-7. Soil
was excavated until field screening indicated all impacted soil had been removed. SS-5 and SS-7 were collected
after excavation and serve as confirmation samples. SS-11 was also collected as an additional confirmation sample.
No soil concentrations were reported above Initial Screening Levels in closure samples.
10/3/2024
3
Facility Site Plat (Closure Notice)
The site plat must be drawn to an appropriate identified scale. It must show planned sampling locations, substances stored in tanks, and
other relevant information. Tank and sample identification numbers must be consistent with the information given on p. 1 and 4 of the
Closure Notice.
Facility ID: Drawn By:Date:
X = Sample locations (SS-#, WS-#, USC-#)Site Plat Must Indicate Actual Locations Of:
0 = Monitoring Wells (MW-#) √Current & former tanks, piping & dispensers
= Soil boring (SB-#), or Geoprobe Boring (GP-#)√ Location of all samples to be taken
●= Water Wells (domestic, livestock, etc.)√ Buildings, fences, & property boundaries
Slope of Surface Topography: (N,NW,W,SW,S,SE,E,NE)√ Utility conduits (sewers, gas, water, storm drains, electrical, etc.)
Land Use At Site: Residential Commercial Industrial √ Depth to groundwater (if encountered)
Surrounding Land: Residential Commercial Industrial √Excavations, GW monitoring wells & soil stockpiles
North Scale: 1”= Feet
SEE ATTACHED SITE PLAT
4
SAMPLE INFORMATION TABLE (Closure Notice)
Complete table for all samples that were taken for closure. Sample ID numbers on the table must be consistent with the sample ID
numbers given on the site plat and in the lab analysis report.
1 Soil (SS), Groundwater (GW), or Unified Soil Classification (USC).2 Final depth (in feet) below grade at which samples were taken.3 Contaminant compound(s) analyzed for each sample (TPH, BTEXN, O&G, etc).
4 Appropriate analysis methods for contaminant compound(s) in each sample
State Certified Laboratory used
Address City State Zip
Contact Person Phone #
I certify under penalty of law that I am the Owner of the tank(s) described above and that I am familiar with the information on this form
and that it is true, accurate and complete and further, that the procedures described herein were followed during tank closure.
Signature of PST owner
Full Name of owner Date
Return completed Closure Notice form, Facility Site Plat and Sample Information Table, Soil/Groundwater sample lab analysis results,
USC sample results, and Chain of Custody form within 90 days of PST Closure to:
Mailing Address:
State of Utah Dept. of Environmental Quality DERR / PST Section P.O. Box 144840 Salt Lake City, Utah 84114-4840
Sample
#
Substance
stored in tank
Sample
type1 Depth2 Compounds3 Analysis method(s)4
Street Address:
Multi Agency State Office Building 195 North 1950 West (First Floor) Salt Lake City, Utah 84116
SS-1
SS-2
SS-3
SS-4
SS-5
USC-1
USC-2
SS-6
SS-10
USC-3
gasoline and diesel
gasoline and diesel
gasoline and diesel
gasoline and diesel
gasoline and diesel
gasoline and diesel
gasoline and diesel
gasoline and diesel
gasoline and diesel
gasoline and diesel
SS
SS
SS
SS
SS
USC
USC
SS
SS
USC
16
16
4
4
4
16
4
4
16
4
MBTEXN, GRO, and DRO
MBTEXN, GRO, and DRO
MBTEXN, GRO, and DRO
MBTEXN, GRO, and DRO
MBTEXN, GRO, and DRO
USC
USC
MBTEXN, GRO, and DRO
MBTEXN, GRO, and DRO
USC
8260 and 8015
8260 and 8015
8260 and 8015
8260 and 8015
8260 and 8015
ASTM-D2487
ASTM-D2487
8260 and 8015
8260 and 8015
ASTM-D2487
Pace National Analytical
12065 Lebanon Road Mt. Juliet TN 37122
Marty Edwards 615-758-5858
Marc Westfall
SS-7
SS-9
gasoline and diesel
gasoline and diesel
SS
SS
4
16
MBTEXN, GRO, and DRO
MBTEXN, GRO, and DRO
8260 and 8015
8260 and 8015
SS-11 gasoline and diesel SS 4 MBTEXN, GRO, and DRO 8260 and 8015
10/7/2024
RUL
CANOPY/DISPENSERS
PUL
DSL
CAR WASH
SPEEDWAY
Store No. 9411
W 12600 S
S
1
3
0
0

W
DUMPSTER
UTILITY CONNECTION BOXES
STORE SIGN
UST VENTS
STORE
SIGN
UTILITY CONNECTION BOX
AIR/VACUUM
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
-SIDEWALK-
-S
I
D
E
W
A
L
K
-
-ASPHA
L
T
-
-ASPHA
L
T
-
-ASP
H
A
L
T
-
-ASPHA
L
T
-
-ASPHA
L
T
-
CONCRETE
UST AREA
P
P
P
P
FOR:
CHECKED BY:DRAWN BY:JOB NUMBER:APPROVED BY:DATE:
FIGURE:
1SITE MAP
SYJMCCL/AS203723863 10/2/2024
SPEEDWAY No. 9411
12592 S. 1300 W
RIVERTON, UTAH 84065
N
0 20 40
APPROXIMATE SCALE IN FEET
No warranty is made by Stantec as to the accuracy, reliability, or completeness of these data. Original data were compiled from
various sources. This information may not meet National Map Accuracy Standards. This product was developed electronically, and
may be updated without notification. Any reproduction may result in a loss of scale and or information.
FILEPATH:\\us0395-ppfss01\shared_projects\203723863\05_report_deliv\drawings_design\cad_fig\Speedway 9411.dwg|cclee|Apr 18, 2024 at 15:07|Layout: 9411-SM
410 17th Street Suite 1400Denver, Colorado 80202
LEGEND:
STORM WATER
POTABLE WATER / METER
NATURAL GAS / METER
SEWER / CLEANOUT
COMMUNICATION
ELECTRICAL
APPROXIMATE PROPERTY BOUNDARY
PRODUCT LINE
FIRE HYDRANT
SITE LAMP
STORM DRAIN
CLOSURE SAMPLE LOCATION
P
SS-6
SS-5/USC-3
SS-7
SS-8
SS-1/USC-1
SS-9
SS-2
SS-10SS-4SS-4
SS-11
P P
P
P P
P
P P
P
-CONC
R
E
T
E
-
P
P
P
P
P
P
PP
SS-3/USC-2
PPP
PPPPP
P
ANALYTICAL REPORT
July 24, 2024
Stantec - 7-11 (Direct)
Sample Delivery Group:L1755277
Samples Received:07/11/2024
Project Number:203723863
Description:7-11#47149 / SDWY #9411 Salt Lake City, UT
Site:47149
Report To:Anna Skinner
2890 E Cottonwood Pkwy
Suite 300
Salt Lake City, UT 84121
Entire Report Reviewed By:
July 24, 2024
[Preliminary Report]
Marty Edwards III
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:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 1 of 26
July 24, 2024
Marty Edwards III
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 1 of 26
TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 5
Sr: Sample Results 6
SS-1 L1755277-01 6
SS-2 L1755277-02 7
SS-3 L1755277-03 8
SS-4 L1755277-04 9
SS-5 L1755277-05 10
SS-6 L1755277-06 11
SS-7 L1755277-07 12
SS-8 L1755277-08 13
SS-9 L1755277-09 14
SS-10 L1755277-10 15
SS-11 L1755277-11 16
Qc: Quality Control Summary 17
Total Solids by Method 2540 G-2011 17
Volatile Organic Compounds (GC/MS) by Method 8260B 19
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 20
Semi-Volatile Organic Compounds (GC) by Method 8015 21
Gl: Glossary of Terms 23
Al: Accreditations & Locations 24
Sc: Sample Chain of Custody 25
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 2 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 2 of 26
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SS-1 L1755277-01 Solid SY 07/09/24 16:10 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 16:16 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 12:28 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-2 L1755277-02 Solid SY 07/09/24 16:45 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 16:38 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 12:40 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-3 L1755277-03 Solid SY 07/10/24 12:50 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 17:00 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 14:44 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-4 L1755277-04 Solid SY 07/09/24 14:45 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 17:23 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 12:53 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-5 L1755277-05 Solid SY 07/09/24 11:25 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 17:45 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 13:05 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-6 L1755277-06 Solid SY 07/09/24 12:00 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 18:07 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 13:18 NH 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:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 3 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 3 of 26
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SS-7 L1755277-07 Solid SY 07/09/24 14:20 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2326531 25 07/18/24 09:28 07/19/24 16:22 ADM Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 18:29 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 12:16 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-8 L1755277-08 Solid SY 07/09/24 13:20 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 18:52 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 13:30 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-9 L1755277-09 Solid SY 07/09/24 16:30 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 19:14 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 13:42 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-10 L1755277-10 Solid SY 07/09/24 16:15 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321155 1 07/11/24 12:31 07/11/24 12:48 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 19:36 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327010 1 07/22/24 13:23 07/23/24 13:55 NH Mt. Juliet, TN
Collected by Collected date/time Received date/time
SS-11 L1755277-11 Solid SY 07/09/24 16:50 07/11/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Total Solids by Method 2540 G-2011 WG2321846 1 07/13/24 10:04 07/13/24 10:18 CMB Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2325804 1 07/18/24 09:28 07/18/24 19:58 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 8015 WG2327011 1 07/22/24 15:46 07/23/24 00:19 JAS 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:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 4 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 4 of 26
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]
Marty Edwards III
Project Manager
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 5 of 26
Marty Edwards III
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 5 of 26
SAMPLE RESULTS - 01
L1755277
SS-1
Collected date/time: 07/09/24 16:10
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 78.4 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.638 1 07/18/2024 16:16 WG2325804
Benzene ND 0.00128 1 07/18/2024 16:16 WG2325804
Toluene ND 0.00638 1 07/18/2024 16:16 WG2325804
Ethylbenzene ND 0.00128 1 07/18/2024 16:16 WG2325804
Xylenes, Total ND 0.00383 1 07/18/2024 16:16 WG2325804
Methyl tert-butyl ether ND 0.00128 1 07/18/2024 16:16 WG2325804
Naphthalene ND 0.00638 1 07/18/2024 16:16 WG2325804
(S) Toluene-d8 115 75.0-131 07/18/2024 16:16 WG2325804
(S) 4-Bromofluorobenzene 106 67.0-138 07/18/2024 16:16 WG2325804
(S) 1,2-Dichloroethane-d4 119 70.0-130 07/18/2024 16:16 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 5.10 1 07/23/2024 12:28 WG2327010
(S) o-Terphenyl 64.1 18.0-148 07/23/2024 12:28 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 6 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 6 of 26
SAMPLE RESULTS - 02
L1755277
SS-2
Collected date/time: 07/09/24 16:45
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 78.7 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.635 1 07/18/2024 16:38 WG2325804
Benzene ND 0.00127 1 07/18/2024 16:38 WG2325804
Toluene ND 0.00635 1 07/18/2024 16:38 WG2325804
Ethylbenzene ND 0.00127 1 07/18/2024 16:38 WG2325804
Xylenes, Total ND 0.00381 1 07/18/2024 16:38 WG2325804
Methyl tert-butyl ether ND 0.00127 1 07/18/2024 16:38 WG2325804
Naphthalene ND 0.00635 1 07/18/2024 16:38 WG2325804
(S) Toluene-d8 116 75.0-131 07/18/2024 16:38 WG2325804
(S) 4-Bromofluorobenzene 102 67.0-138 07/18/2024 16:38 WG2325804
(S) 1,2-Dichloroethane-d4 125 70.0-130 07/18/2024 16:38 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 5.08 1 07/23/2024 12:40 WG2327010
(S) o-Terphenyl 64.7 18.0-148 07/23/2024 12:40 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 7 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 7 of 26
SAMPLE RESULTS - 03
L1755277
SS-3
Collected date/time: 07/10/24 12:50
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 86.1 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.581 1 07/18/2024 17:00 WG2325804
Benzene 0.00906 0.00116 1 07/18/2024 17:00 WG2325804
Toluene ND 0.00581 1 07/18/2024 17:00 WG2325804
Ethylbenzene 0.00230 0.00116 1 07/18/2024 17:00 WG2325804
Xylenes, Total ND 0.00349 1 07/18/2024 17:00 WG2325804
Methyl tert-butyl ether ND 0.00116 1 07/18/2024 17:00 WG2325804
Naphthalene ND 0.00581 1 07/18/2024 17:00 WG2325804
(S) Toluene-d8 117 75.0-131 07/18/2024 17:00 WG2325804
(S) 4-Bromofluorobenzene 101 67.0-138 07/18/2024 17:00 WG2325804
(S) 1,2-Dichloroethane-d4 124 70.0-130 07/18/2024 17:00 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction 11.9 4.65 1 07/23/2024 14:44 WG2327010
(S) o-Terphenyl 47.3 18.0-148 07/23/2024 14:44 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 8 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 8 of 26
SAMPLE RESULTS - 04
L1755277
SS-4
Collected date/time: 07/09/24 14:45
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 84.8 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.590 1 07/18/2024 17:23 WG2325804
Benzene 0.00590 0.00118 1 07/18/2024 17:23 WG2325804
Toluene ND 0.00590 1 07/18/2024 17:23 WG2325804
Ethylbenzene 0.0226 0.00118 1 07/18/2024 17:23 WG2325804
Xylenes, Total ND 0.00354 1 07/18/2024 17:23 WG2325804
Methyl tert-butyl ether ND 0.00118 1 07/18/2024 17:23 WG2325804
Naphthalene 0.0138 0.00590 1 07/18/2024 17:23 WG2325804
(S) Toluene-d8 112 75.0-131 07/18/2024 17:23 WG2325804
(S) 4-Bromofluorobenzene 105 67.0-138 07/18/2024 17:23 WG2325804
(S) 1,2-Dichloroethane-d4 116 70.0-130 07/18/2024 17:23 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 4.72 1 07/23/2024 12:53 WG2327010
(S) o-Terphenyl 62.1 18.0-148 07/23/2024 12:53 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 9 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 9 of 26
SAMPLE RESULTS - 05
L1755277
SS-5
Collected date/time: 07/09/24 11:25
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 80.8 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.619 1 07/18/2024 17:45 WG2325804
Benzene 0.00423 0.00124 1 07/18/2024 17:45 WG2325804
Toluene ND 0.00619 1 07/18/2024 17:45 WG2325804
Ethylbenzene 0.00134 0.00124 1 07/18/2024 17:45 WG2325804
Xylenes, Total ND 0.00371 1 07/18/2024 17:45 WG2325804
Methyl tert-butyl ether ND 0.00124 1 07/18/2024 17:45 WG2325804
Naphthalene ND 0.00619 1 07/18/2024 17:45 WG2325804
(S) Toluene-d8 115 75.0-131 07/18/2024 17:45 WG2325804
(S) 4-Bromofluorobenzene 102 67.0-138 07/18/2024 17:45 WG2325804
(S) 1,2-Dichloroethane-d4 119 70.0-130 07/18/2024 17:45 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 4.95 1 07/23/2024 13:05 WG2327010
(S) o-Terphenyl 58.3 18.0-148 07/23/2024 13:05 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 10 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 10 of 26
SAMPLE RESULTS - 06
L1755277
SS-6
Collected date/time: 07/09/24 12:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 82.9 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.603 1 07/18/2024 18:07 WG2325804
Benzene 0.00489 0.00121 1 07/18/2024 18:07 WG2325804
Toluene ND 0.00603 1 07/18/2024 18:07 WG2325804
Ethylbenzene 0.00162 0.00121 1 07/18/2024 18:07 WG2325804
Xylenes, Total ND 0.00362 1 07/18/2024 18:07 WG2325804
Methyl tert-butyl ether ND 0.00121 1 07/18/2024 18:07 WG2325804
Naphthalene ND 0.00603 1 07/18/2024 18:07 WG2325804
(S) Toluene-d8 114 75.0-131 07/18/2024 18:07 WG2325804
(S) 4-Bromofluorobenzene 102 67.0-138 07/18/2024 18:07 WG2325804
(S) 1,2-Dichloroethane-d4 120 70.0-130 07/18/2024 18:07 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 4.83 1 07/23/2024 13:18 WG2327010
(S) o-Terphenyl 65.0 18.0-148 07/23/2024 13:18 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 11 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 11 of 26
SAMPLE RESULTS - 07
L1755277
SS-7
Collected date/time: 07/09/24 14:20
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 82.5 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction 1.72 0.606 1 07/18/2024 18:29 WG2325804
Benzene 0.00720 0.00121 1 07/18/2024 18:29 WG2325804
Toluene ND 0.00606 1 07/18/2024 18:29 WG2325804
Ethylbenzene 0.746 0.0357 25 07/19/2024 16:22 WG2326531
Xylenes, Total 0.0943 0.00364 1 07/18/2024 18:29 WG2325804
Methyl tert-butyl ether ND 0.00121 1 07/18/2024 18:29 WG2325804
Naphthalene 0.0390 0.00606 1 07/18/2024 18:29 WG2325804
(S) Toluene-d8 113 75.0-131 07/18/2024 18:29 WG2325804
(S) Toluene-d8 130 75.0-131 07/19/2024 16:22 WG2326531
(S) 4-Bromofluorobenzene 103 67.0-138 07/18/2024 18:29 WG2325804
(S) 4-Bromofluorobenzene 94.3 67.0-138 07/19/2024 16:22 WG2326531
(S) 1,2-Dichloroethane-d4 120 70.0-130 07/18/2024 18:29 WG2325804
(S) 1,2-Dichloroethane-d4 115 70.0-130 07/19/2024 16:22 WG2326531
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction 10.1 4.85 1 07/23/2024 12:16 WG2327010
(S) o-Terphenyl 65.0 18.0-148 07/23/2024 12:16 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 12 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 12 of 26
SAMPLE RESULTS - 08
L1755277
SS-8
Collected date/time: 07/09/24 13:20
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 84.1 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.594 1 07/18/2024 18:52 WG2325804
Benzene 0.00716 0.00119 1 07/18/2024 18:52 WG2325804
Toluene ND 0.00594 1 07/18/2024 18:52 WG2325804
Ethylbenzene 0.0124 0.00119 1 07/18/2024 18:52 WG2325804
Xylenes, Total 0.00957 0.00357 1 07/18/2024 18:52 WG2325804
Methyl tert-butyl ether ND 0.00119 1 07/18/2024 18:52 WG2325804
Naphthalene ND 0.00594 1 07/18/2024 18:52 WG2325804
(S) Toluene-d8 115 75.0-131 07/18/2024 18:52 WG2325804
(S) 4-Bromofluorobenzene 106 67.0-138 07/18/2024 18:52 WG2325804
(S) 1,2-Dichloroethane-d4 115 70.0-130 07/18/2024 18:52 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 4.76 1 07/23/2024 13:30 WG2327010
(S) o-Terphenyl 64.3 18.0-148 07/23/2024 13:30 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 13 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 13 of 26
SAMPLE RESULTS - 09
L1755277
SS-9
Collected date/time: 07/09/24 16:30
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 78.2 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.639 1 07/18/2024 19:14 WG2325804
Benzene ND 0.00128 1 07/18/2024 19:14 WG2325804
Toluene ND 0.00639 1 07/18/2024 19:14 WG2325804
Ethylbenzene ND 0.00128 1 07/18/2024 19:14 WG2325804
Xylenes, Total ND 0.00384 1 07/18/2024 19:14 WG2325804
Methyl tert-butyl ether ND 0.00128 1 07/18/2024 19:14 WG2325804
Naphthalene ND 0.00639 1 07/18/2024 19:14 WG2325804
(S) Toluene-d8 116 75.0-131 07/18/2024 19:14 WG2325804
(S) 4-Bromofluorobenzene 105 67.0-138 07/18/2024 19:14 WG2325804
(S) 1,2-Dichloroethane-d4 120 70.0-130 07/18/2024 19:14 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 5.11 1 07/23/2024 13:42 WG2327010
(S) o-Terphenyl 63.7 18.0-148 07/23/2024 13:42 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 14 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 14 of 26
SAMPLE RESULTS - 10
L1755277
SS-10
Collected date/time: 07/09/24 16:15
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 76.4 1 07/11/2024 12:48 WG2321155
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.655 1 07/18/2024 19:36 WG2325804
Benzene ND 0.00131 1 07/18/2024 19:36 WG2325804
Toluene ND 0.00655 1 07/18/2024 19:36 WG2325804
Ethylbenzene ND 0.00131 1 07/18/2024 19:36 WG2325804
Xylenes, Total ND 0.00393 1 07/18/2024 19:36 WG2325804
Methyl tert-butyl ether ND 0.00131 1 07/18/2024 19:36 WG2325804
Naphthalene ND 0.00655 1 07/18/2024 19:36 WG2325804
(S) Toluene-d8 116 75.0-131 07/18/2024 19:36 WG2325804
(S) 4-Bromofluorobenzene 103 67.0-138 07/18/2024 19:36 WG2325804
(S) 1,2-Dichloroethane-d4 121 70.0-130 07/18/2024 19:36 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 5.24 1 07/23/2024 13:55 WG2327010
(S) o-Terphenyl 58.5 18.0-148 07/23/2024 13:55 WG2327010
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 15 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 15 of 26
SAMPLE RESULTS - 11
L1755277
SS-11
Collected date/time: 07/09/24 16:50
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte %date / time
Total Solids 78.9 1 07/13/2024 10:18 WG2321846
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/MS) Low Fraction ND 0.634 1 07/18/2024 19:58 WG2325804
Benzene ND 0.00127 1 07/18/2024 19:58 WG2325804
Toluene ND 0.00634 1 07/18/2024 19:58 WG2325804
Ethylbenzene ND 0.00127 1 07/18/2024 19:58 WG2325804
Xylenes, Total ND 0.00380 1 07/18/2024 19:58 WG2325804
Methyl tert-butyl ether ND 0.00127 1 07/18/2024 19:58 WG2325804
Naphthalene ND 0.00634 1 07/18/2024 19:58 WG2325804
(S) Toluene-d8 117 75.0-131 07/18/2024 19:58 WG2325804
(S) 4-Bromofluorobenzene 103 67.0-138 07/18/2024 19:58 WG2325804
(S) 1,2-Dichloroethane-d4 120 70.0-130 07/18/2024 19:58 WG2325804
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier RDL (dry) Dilution Analysis Batch
Analyte mg/kg mg/kg date / time
TPH (GC/FID) High Fraction ND 5.07 1 07/23/2024 00:19 WG2327011
(S) o-Terphenyl 35.6 18.0-148 07/23/2024 00:19 WG2327011
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 16 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 16 of 26
QUALITY CONTROL SUMMARYWG2321155
Total Solids by Method 2540 G-2011 L1755277-01,02,03,04,05,06,07,08,09,10
Method Blank (MB)
(MB) R4092936-1 07/11/24 12:48
MB Result MB Qualifier MB MDL MB RDL
Analyte %%%
Total Solids 0.00100
L1755277-01 Original Sample (OS) • Duplicate (DUP)
(OS) L1755277-01 07/11/24 12:48 • (DUP) R4092936-3 07/11/24 12:48
Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD
Limits
Analyte %%%%
Total Solids 78.4 78.4 1 0.0528 10
Laboratory Control Sample (LCS)
(LCS) R4092936-2 07/11/24 12:48
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte %%%%
Total Solids 50.0 50.0 100 90.0-110
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 17 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 17 of 26
QUALITY CONTROL SUMMARYWG2321846
Total Solids by Method 2540 G-2011 L1755277-11
Method Blank (MB)
(MB) R4093727-1 07/13/24 10:18
MB Result MB Qualifier MB MDL MB RDL
Analyte %%%
Total Solids 0.000
L1755277-11 Original Sample (OS) • Duplicate (DUP)
(OS) L1755277-11 07/13/24 10:18 • (DUP) R4093727-3 07/13/24 10:18
Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD
Limits
Analyte %%%%
Total Solids 78.9 79.2 1 0.422 10
Laboratory Control Sample (LCS)
(LCS) R4093727-2 07/13/24 10:18
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte %%%%
Total Solids 50.0 50.0 100 90.0-110
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 18 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 18 of 26
QUALITY CONTROL SUMMARYWG2326531
Volatile Organic Compounds (GC/MS) by Method 8260B L1755277-07
Method Blank (MB)
(MB) R4096083-4 07/19/24 12:19
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Ethylbenzene U 0.00750 0.0250
(S) Toluene-d8 130 75.0-131
(S) 4-Bromofluorobenzene 94.4 67.0-138
(S) 1,2-Dichloroethane-d4 119 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4096083-1 07/19/24 09:29 • (LCSD) R4096083-2 07/19/24 10:33
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte mg/kg mg/kg mg/kg %%%%%
Ethylbenzene 0.0250 0.0255 0.0266 102 106 74.0-126 4.22 20
(S) Toluene-d8 123 120 75.0-131
(S) 4-Bromofluorobenzene 102 105 67.0-138
(S) 1,2-Dichloroethane-d4 123 123 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 19 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 19 of 26
QUALITY CONTROL SUMMARYWG2325804
Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1755277-01,02,03,04,05,06,07,08,09,10,11
Method Blank (MB)
(MB) R4096039-3 07/18/24 12:44
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPH (GC/MS) Low Fraction U 0.183 0.500
Benzene U 0.000375 0.00100
Toluene U 0.00123 0.00500
Ethylbenzene U 0.000300 0.00100
Xylenes, Total U 0.000500 0.00300
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00498 0.00500
(S) Toluene-d8 122 75.0-131
(S) 4-Bromofluorobenzene 101 67.0-138
(S) 1,2-Dichloroethane-d4 93.4 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4096039-2 07/18/24 10:53
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
TPH (GC/MS) Low Fraction 5.00 4.64 92.8 52.0-154
(S) Toluene-d8 116 75.0-131
(S) 4-Bromofluorobenzene 199 67.0-138 J1
(S) 1,2-Dichloroethane-d4 94.1 70.0-130
Laboratory Control Sample (LCS)
(LCS) R4096039-1 07/18/24 08:56
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
Benzene 0.0250 0.0283 113 70.0-123
Toluene 0.0250 0.0263 105 75.0-121
Ethylbenzene 0.0250 0.0289 116 74.0-126
Xylenes, Total 0.0750 0.0854 114 72.0-127
Methyl tert-butyl ether 0.0250 0.0293 117 66.0-132
Naphthalene 0.0250 0.0216 86.4 59.0-130
(S) Toluene-d8 116 75.0-131
(S) 4-Bromofluorobenzene 109 67.0-138
(S) 1,2-Dichloroethane-d4 110 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 20 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 20 of 26
QUALITY CONTROL SUMMARYWG2327010
Semi-Volatile Organic Compounds (GC) by Method 8015 L1755277-01,02,03,04,05,06,07,08,09,10
Method Blank (MB)
(MB) R4097472-1 07/23/24 11:51
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPH (GC/FID) High Fraction U 0.769 4.00
(S) o-Terphenyl 79.6 18.0-148
Laboratory Control Sample (LCS)
(LCS) R4097472-2 07/23/24 12:03
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
TPH (GC/FID) High Fraction 50.0 38.5 77.0 50.0-150
(S) o-Terphenyl 87.1 18.0-148
L1755277-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1755277-07 07/23/24 12:16 • (MS) R4097472-3 07/23/24 12:28 • (MSD) R4097472-4 07/23/24 12:40
Spike Amount
(dry)
Original Result
(dry)MS Result (dry)MSD Result
(dry)MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte mg/kg mg/kg mg/kg mg/kg %%%%%
TPH (GC/FID) High Fraction 58.6 10.1 52.3 45.1 72.0 60.5 1 50.0-150 14.7 20
(S) o-Terphenyl 68.5 63.2 18.0-148
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 21 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 21 of 26
QUALITY CONTROL SUMMARYWG2327011
Semi-Volatile Organic Compounds (GC) by Method 8015 L1755277-11
Method Blank (MB)
(MB) R4097157-1 07/22/24 23:51
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPH (GC/FID) High Fraction U 0.769 4.00
(S) o-Terphenyl 89.6 18.0-148
Laboratory Control Sample (LCS)
(LCS) R4097157-2 07/23/24 00:05
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg %%
TPH (GC/FID) High Fraction 50.0 37.9 75.8 50.0-150
(S) o-Terphenyl 78.8 18.0-148
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 22 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 22 of 26
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
(dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils].
MDL Method Detection Limit.
ND Not detected at the Reporting Limit (or MDL where applicable).
RDL Reported Detection Limit.
RDL (dry)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
J1 Surrogate recovery limits have been exceeded; values are outside upper control limits.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 23 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 23 of 26

Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
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
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:12 24 of 26
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Stantec - 7-11 (Direct)203723863 L1755277 07/24/24 12:21 24 of 26
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Stantec Consulting Inc.
Attn: Anna Skinner
2890 East Cottonwood Parkway, Suite 300
Salt Lake City, UT 84121
Work Order: 24G0799
Project: 203723863-Speedway Riverton
7/22/2024
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Stantec Consulting Inc.
Anna Skinner
2890 East Cottonwood Parkway, Suite 300
Salt Lake City, UT 84121
PO#:
Receipt:
Date Reported:
Project Name:
203723863
7/10/24 14:34 @ 39.4 °C
7/22/2024
203723863-Speedway Riverton
Sample ID: USC-1
Lab ID: 24G0799-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/9/24 16:10
Preparation
Date/Time
Sampled By: Steve Yorgason
Minimum
Reporting
Limit MethodResult
Inorganic
-7/15/247/15/24ASTM D2487-ModCLUnited Soil Classification [USC]
Project Name: 203723863-Speedway Riverton CtF WO#: 24G0799
www.ChemtechFord.com
Page 2 of 6Page 2 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Stantec Consulting Inc.
Anna Skinner
2890 East Cottonwood Parkway, Suite 300
Salt Lake City, UT 84121
PO#:
Receipt:
Date Reported:
Project Name:
203723863
7/10/24 14:34 @ 39.4 °C
7/22/2024
203723863-Speedway Riverton
Sample ID: USC-2
Lab ID: 24G0799-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/10/24 12:50
Preparation
Date/Time
Sampled By: Steve Yorgason
Minimum
Reporting
Limit MethodResult
Inorganic
-7/15/247/15/24ASTM D2487-ModCLUnited Soil Classification [USC]
Project Name: 203723863-Speedway Riverton CtF WO#: 24G0799
www.ChemtechFord.com
Page 3 of 6Page 3 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Stantec Consulting Inc.
Anna Skinner
2890 East Cottonwood Parkway, Suite 300
Salt Lake City, UT 84121
PO#:
Receipt:
Date Reported:
Project Name:
203723863
7/10/24 14:34 @ 39.4 °C
7/22/2024
203723863-Speedway Riverton
Sample ID: USC-3
Lab ID: 24G0799-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/9/24 11:25
Preparation
Date/Time
Sampled By: Steve Yorgason
Minimum
Reporting
Limit MethodResult
Inorganic
-7/15/247/15/24ASTM D2487-ModCHUnited Soil Classification [USC]
Project Name: 203723863-Speedway Riverton CtF WO#: 24G0799
www.ChemtechFord.com
Page 4 of 6Page 4 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Stantec Consulting Inc.
Anna Skinner
2890 East Cottonwood Parkway, Suite 300
Salt Lake City, UT 84121
PO#:
Receipt:
Date Reported:
Project Name:
203723863
7/10/24 14:34 @ 39.4 °C
7/22/2024
203723863-Speedway Riverton
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Project Name: 203723863-Speedway Riverton CtF WO#: 24G0799
www.ChemtechFord.com
Page 5 of 6Page 5 of 6
Page 6 of 6
November 22, 2024
Attachment D
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
ATTACHMENT D
UST Disposal Receipts
November 22, 2024
Attachment E
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
ATTACHMENT E
Compaction Testing Results
Soil Density Report - Jul 10, 2024
by  Mateo Archuleta for Pacific West On-Call Testing Services
KLF Project #: 25001351.001A
General Location:East side of parking lot
Test Type:Nuclear Gauge Test Method:ASTM D6938
Gauge Serial No.:14158 Gauge Make/Model:Troxler / 3440
Date of Std./Adj.:7/10/24 Date of Calibration:2/6/2024
Density Std. Count:1220 Moisture Std. Count:618
Test #
Test Info Proctor Data Specs Results
Probe
Depth
(in)
Elev.
/ Depth
Below FSG
Proctor #
Lab Max.
Density
(pcf)
Opt.
Water
Content
(%)
Specified
Compaction -
Min/Max (%)
Specified Water
Content -
Min/Max (%)
Water
Content
(%)
Dry Unit
Weight
(pcf)
Relative
Compaction
(%)
20240710-
1841-MA-1
6 / CMT Provided
Proctor 143.9 6.1 95 4.1 - 8.1 4.4 136.7 95
Location:South end of the area being tested. Approx 15’-20’ North of bank.
Visual Description:Light brown and tannish, up to 2”
20240710-
1847-MA-2
10 / CMT Provided
Proctor 143.9 6.1 95 4.1 - 8.1 5.9 141.6 98.4
Location:North end of area being back filled, approx 12’-20’ South from bank.
Visual Description:Light brown and tannish, up to 2”
Page 1 of 1 Reviewed by: Ken Lobato on 7/30/2024176456
November 22, 2024
Attachment F
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
ATTACHMENT F
Impacted Soil Waste Manifests
November 22, 2024
Attachment G
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
ATTACHMENT G
UDEQ-DERR Spill Report
ENVIRONMENTAL INCIDENT REPORT: RIVERTON -- GASOLINE / DIESEL
RELEASE
Report Number: 19163
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West Salt Lake City, Utah 84116
Bus. Hours: 801-536-4100
Report Spills 24/7/365: 801-536-4123
Report Taken By:Liberty Coe
Date/Time Reported:7/10/2024, 10:00 AM
REPORTING PARTY DATES AND TIMES
Reporting Party:Anna Skinner Title:
Company:Stantec Phone:[phone]
Date/Time Discovered:7/10/2024, 10:00 AM Email:
Lead Agency:DERR Agency Contact:
RESPONSIBLE PARTY
Name:7/11 (TMRC Retail)Phone:
Email:
Address:Company:
INCIDENT LOCATION
Incident Address:12592 S 1300 W , 84065
Nearest Town:RIVERTON County:SALT LAKE
Highway:Mile Marker:
UTM:421224, 4486185 Land Owner:Private
Longitude, Latitude:-111.92999400000339, 40.52265300000053
First Responders Notified?:
INCIDENT SUMMARY
During a tank pull soil staining was discovered around 2 dispensers in about a 5 foot by 10 foot area and about 2 feet deep.
The staining was in the vicinity of soil samples SS5 and SS7, which are referenced in the closure plan for the site. The soil staining was
excavated and seems to be fully removed.
David Wilson with DERR was on site (Facility 4001842).
CHEMICALS REPORTED
Material/Chem Material/Chem
(Other)Amount Amount
Type
Amount Type
(Other)
Diesel unknown
Gasoline unknown
IMPACTED MEDIA
Impacted
Media Media (Other) Land User Waterway
Name Near Water NRC Rpt. #
Soils Commercial
NOTIFICATIONS MADE
Agency Agency Other Contact Contact
Type Phone Date/Time By
Salt Lake
County HD Email Liberty Coe
DERR Morgan
Atkinson Email Liberty Coe
ACTIONS TAKEN
Date Agency Agency
Contact Action Action Details
Incident notification reports are prepared by DEQ staff using information provided by the reporting party.
The information is considered preliminary and is subject to revision. The reported incident and associated
details may or may not be valid.
November 22, 2024
Attachment H
Reference: 7-Eleven No. 47149 (Speedway No. 9411) – Underground Storage Tank Closure Report
12592 South 1300 West, Riverton, Utah
Facility ID 4001842
ATTACHMENT H
NFA Letter
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144840 • Salt Lake City, UT 84114-4840
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah
SPENCER J. COX
Governor
DEIDRE HENDERSON
Lieutenant Governor
Department of
Environmental Quality
Kimberly D. Shelley
Executive Director
DIVISION OF ENVIRONMENTAL
RESPONSE AND REMEDIATION
Brent H. Everett
Director
ERRL-0449-24
November 6, 2024
Paula Sime
TRMC Retail, LLC
500 Speedway Drive
Enon, Ohio 45323
Re:No Further Action, Leaking Petroleum Storage Tank Release
Speedway # 9411, located at 12592 South 1300 West, Riverton, Utah
Facility Identification No. 4001842, Release Site OKZ
Dear Ms. Sime:
The file for this release has been reviewed by the Division of Environmental Response and
Remediation (DERR) project manager who has recommended that no further corrective action be
required at this time. This no further action applies only to the specific Release Site OKZ. This
recommendation is based on the information contained in the file for this release. That information
was supplied by you, your consultant, or another representative.
The information submitted indicates that any detectable petroleum contamination from this
release is not a threat to human health or the environment according to Utah Admin. Code R311-211.
In the future, if other evidence indicates a threat to human health or the environment, additional
corrective action may be required.
If you have any questions, please contact Alex Thompson, the DERR project manager, at
[phone].
Sincerely,
Brent H. Everett, Director
Division of Environmental Response and Remediation
BHE/MAT/stt
cc: Dorothy Adams, Executive Director, Salt Lake County Health Department
Ron Lund, Environmental Health Director, Salt Lake County Health Department
Anna Skinner, Stantec Consulting, Inc.