DERR-2025-003599

1
UNDERGROUND STORAGE TANK PERMANENT CLOSURE NOTICE (rev. 2/1/15) FACILITY ID# 6000142 .
…
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 David Hansen
of (company name) Rockwell Solutions, Inc Phone # [phone]
Address 718 E Bridger Lane City Elk Ridge StateUT Zip84651
TANKS CLOSED
Piping Only Tank #
Please complete for each tank 1 2 3 4
Type (Steel,FRP,etc.) FRP FRP FRP FRP
Date Installed 4/1/89 4/1/89 4/1/89 4/1/89
Capacity (Gallons) 4,000 4,000 6,000 6,000
Substance stored* gasoline diesel gasoline gasoline
Date last operated 2023 2023 2023 2023
Date Closed 4/8/25 4/7/25 4/7/25 4/7/25
Removed/In Place/ Change in
Service (CIS)? Removed Removed Removed Removed
*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: Dry ice
Location of Closure Records: Rockwell Solutions
For In-Place Closure: tanks filled with:
FACILITY INFORMATION
Tank Owner Wells Brinkerhoff Phone # [phone]
Address 25 S 100 East City Glendale State UT Zip 84729
Facility Name Sparky's Gas n Go
Address 94 W State Street City Orderville State UT Zip 84758
Contact person Wells Brinkerhoff Phone # [phone]
Total number of regulated underground tanks at this site before closure 4
Total number of regulated underground tanks at this site after closure 0
TANK REMOVER Name David Hansen Cert. # TR410 Exp. Date 12/31/25
Company Rockwell Solutions, Inc Phone # [phone]
Address 718 E Bridger Lane City Elk Ridge State UT Zip 84651
SOIL/GROUNDWATER SAMPLER Name David Hansen Cert. # GS0842 Exp. Date 07/15/2026
Company Rockwell Solutions, Inc Phone # [phone]
Address 718 E Bridger Lane City Elk Ridge State UT Zip 84651
5/2/2025 M.O.
5/2/2025
2
DISPOSAL SITES USED
Location Name Contact Name Phone # Date Amount
Tank(s) Valley Landfill scalehouse 435-644-5089 4/8/25 Tank #al
Product From Tank(s) Sump and Trap Erik Brown 385-429-0296 4/8/25 50 gal
Contaminated Water
From Tank Cleaning Sump and Trap Erik Brown 385-429-0296 4/8/25 50 gal
Sludge none
Contaminated Water
From Excavation none
Contaminated Soil Karl Spencer landfarm Karl Spencer 435-691-2662 4/8/25 5 cy

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):
125 NW Water Line 120 NW Sewer Line NP Natural Gas NP Storm Drain OH Telephone OH Electrical 0 S Property Line 50 NW 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 R311-205 U.A.C., and that any additional samples required by 40 CFR 280.52, 40 CFR 280.72 and R311-205-2(a)(1) were
properly collected.

Signature of Certified Groundwater/Soil Sampler
Full name of Certified Sampler David Hansen 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 David Hansen Cert. #CC 0130 Exp. Date 1/1/2026
Company Rockwell Solutions, Inc Address 718 E Bridger Lane
City Elk Ridge State UT Zip 84651 Phone # [phone]

Please explain any unusual circumstances that occurred during the site assessment or closure:
West dispenser was not sampled as it will be removed and the area around it excavated during upcoming remediation activities
Impacted soil from south side of tank basin hauled to DAQ-approved landfarm at Karl Spencer property. s

5/1/25
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

NORTH
Approx. scale in feet
00 20
SS-N,GW-N,
USC-1
Figure 1 UST Closure Map
Sparky’s Gas n Go
94 W State Street
Orderville, Utah
B-7
SE, 12’
NE, 12’, USC-1
NW, 12’
SW, 12’
Sample Location
D-E, 4’, USC-2
E-Mid, 12’
SE, 20’
Water
Communication
Sewer
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
Rockwell Solutions, Inc
Attn: Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
Work Order: 25D0862
Project: Sparkys Gas-n-Go
4/18/2025
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 10
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
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/9/25 16:31 @ 3.9 °C
4/18/2025
Sparkys Gas-n-Go
Sample ID: SW, 12'
Lab ID: 25D0862-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/7/25 17:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%4/10/254/10/250.1 CTF800082.9Total Solids
MBTEXn
mg/kg dry 4/15/254/15/250.002 EPA 8260D/5030BNDBenzene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 4/15/254/15/250.004 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDNaphthalene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDToluene
mg/kg dry 4/15/254/15/250.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 4/15/254/15/250.0603 EPA 8260B/C 5035A/[CALC]0.107Gasoline Range Organics
Diesel Range
mg/kg dry 4/12/254/11/2560EPA 8015 CNDDiesel Range Organics
Project Name: Sparkys Gas-n-Go CtF WO#: 25D0862
www.ChemtechFord.com
Page 2 of 10Page 2 of 10
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
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/9/25 16:31 @ 3.9 °C
4/18/2025
Sparkys Gas-n-Go
Sample ID: NW, 12'
Lab ID: 25D0862-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/8/25 14:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%4/10/254/10/250.1 CTF800080.9Total Solids
MBTEXn
mg/kg dry 4/15/254/15/250.002 EPA 8260D/5030BNDBenzene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 4/15/254/15/250.004 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDNaphthalene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDToluene
mg/kg dry 4/15/254/15/250.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 4/15/254/15/250.0618 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 4/12/254/11/2562EPA 8015 CNDDiesel Range Organics
Project Name: Sparkys Gas-n-Go CtF WO#: 25D0862
www.ChemtechFord.com
Page 3 of 10Page 3 of 10
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
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/9/25 16:31 @ 3.9 °C
4/18/2025
Sparkys Gas-n-Go
Sample ID: NE, 12'
Lab ID: 25D0862-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/8/25 14:10
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%4/10/254/10/250.1 CTF800082.2Total Solids
MBTEXn
mg/kg dry 4/15/254/15/250.002 EPA 8260D/5030BNDBenzene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 4/15/254/15/250.004 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDNaphthalene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDToluene
mg/kg dry 4/15/254/15/250.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 4/15/254/15/250.0608 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 4/12/254/11/2561EPA 8015 CNDDiesel Range Organics
Project Name: Sparkys Gas-n-Go CtF WO#: 25D0862
www.ChemtechFord.com
Page 4 of 10Page 4 of 10
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
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/9/25 16:31 @ 3.9 °C
4/18/2025
Sparkys Gas-n-Go
Sample ID: E-Mid, 12'
Lab ID: 25D0862-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/8/25 14:25
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%4/10/254/10/250.1 CTF800079.7Total Solids
MBTEXn
mg/kg dry 4/15/254/15/250.002 EPA 8260D/5030BNDBenzene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 4/15/254/15/250.003 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDNaphthalene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDToluene
mg/kg dry 4/15/254/15/250.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 4/15/254/15/250.0627 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 4/14/254/14/2563EPA 8015 CNDDiesel Range Organics
Project Name: Sparkys Gas-n-Go CtF WO#: 25D0862
www.ChemtechFord.com
Page 5 of 10Page 5 of 10
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
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/9/25 16:31 @ 3.9 °C
4/18/2025
Sparkys Gas-n-Go
Sample ID: SE, 12'
Lab ID: 25D0862-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/8/25 15:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%4/10/254/10/250.1 CTF800084.1Total Solids
MBTEXn
mg/kg dry 4/15/254/15/250.002 EPA 8260D/5030BNDBenzene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 4/15/254/15/250.003 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDNaphthalene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDToluene
mg/kg dry 4/15/254/15/250.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 4/15/254/15/250.0594 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 4/14/254/14/2559EPA 8015 CNDDiesel Range Organics
Project Name: Sparkys Gas-n-Go CtF WO#: 25D0862
www.ChemtechFord.com
Page 6 of 10Page 6 of 10
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
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/9/25 16:31 @ 3.9 °C
4/18/2025
Sparkys Gas-n-Go
Sample ID: SE, 20'
Lab ID: 25D0862-06Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/8/25 15:35
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%4/10/254/10/250.1 CTF800084.7Total Solids
MBTEXn
mg/kg dry 4/15/254/15/250.002 EPA 8260D/5030BNDBenzene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030B0.10Ethylbenzene
mg/kg dry 4/15/254/15/250.004 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030B0.13Naphthalene
mg/kg dry 4/15/254/15/250.006 EPA 8260D/5030BNDToluene
mg/kg dry 4/15/254/15/250.02 EPA 8260D/5030B0.48Xylenes, total
Gasoline Range
mg/kg dry 4/15/254/15/250.0590 EPA 8260B/C 5035A/[CALC]4.82Gasoline Range Organics
Diesel Range
mg/kg dry 4/14/254/14/2559EPA 8015 C1050Diesel Range Organics
Project Name: Sparkys Gas-n-Go CtF WO#: 25D0862
www.ChemtechFord.com
Page 7 of 10Page 7 of 10
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
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/9/25 16:31 @ 3.9 °C
4/18/2025
Sparkys Gas-n-Go
Sample ID: D-E, 4'
Lab ID: 25D0862-07Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/8/25 16:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%4/10/254/10/250.1 CTF800085.8Total Solids
MBTEXn
mg/kg dry 4/17/254/17/250.002 EPA 8260D/5030BNDBenzene
mg/kg dry 4/17/254/17/250.006 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 4/17/254/17/250.003 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 4/17/254/17/250.006 EPA 8260D/5030BNDNaphthalene
mg/kg dry 4/17/254/17/250.006 EPA 8260D/5030BNDToluene
mg/kg dry 4/17/254/17/250.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 4/17/254/17/250.0577 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 4/14/254/14/2558EPA 8015 CNDDiesel Range Organics
Project Name: Sparkys Gas-n-Go CtF WO#: 25D0862
www.ChemtechFord.com
Page 8 of 10Page 8 of 10
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
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/9/25 16:31 @ 3.9 °C
4/18/2025
Sparkys Gas-n-Go
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: Sparkys Gas-n-Go CtF WO#: 25D0862
www.ChemtechFord.com
Page 9 of 10Page 9 of 10
Page 10 of 10
Sparky’s Gas-n-Go, (UST No. 6000142), 94 W State Street, Orderville, Utah
USC Results:
USC -1 (NE, 12’), Silty Clay (CL)
USC -2 (D-E, 4’), Silty sand (SM)