DERR-2024-010587

The collection of documents is a site map and lab samples from Dave Hansen. They are from a tank and station closure that developed into a small excavation.Sampes are from pre excavation and post excavation.
Water
Gas
Sewer
NORTH
Sample Location Last Chance #6
910 W Center Street
Provo, UtahApprox. scale in feet
00 20
Figure 1 UST Closure Map
TB-N
GW-N
USC-1
TB-S
GW-S
D-NE
D-SE
TB-E
USC-2
D-NW
D-SW
USC-2
rWate
sGa
S weer
St rm raino D
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: 24E2342
Project: Last Chance #6
6/6/2024
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 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
Sample ID: TB-N, 10'
Lab ID: 24E2342-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/29/24 16:50
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/4/246/4/240.1 CTF800089.7Total Solids
MBTEXn
mg/kg dry 6/4/246/4/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 6/4/246/4/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 6/4/246/4/240.279 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 6/3/246/3/2456EPA 8015 CNDDiesel Range Organics
Project Name: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 2 of 11Page 2 of 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
Sample ID: TB-S, 10'
Lab ID: 24E2342-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/29/24 16:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/4/246/4/240.1 CTF800092.3Total Solids
MBTEXn
mg/kg dry 6/4/246/4/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 6/4/246/4/240.02 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 6/4/246/4/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/4/246/4/240.02 EPA 8260D/5030BNDNaphthalene
mg/kg dry 6/4/246/4/240.02 EPA 8260D/5030BNDToluene
mg/kg dry 6/4/246/4/240.02 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 6/4/246/4/240.248 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 6/3/246/3/2454EPA 8015 CNDDiesel Range Organics
Project Name: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 3 of 11Page 3 of 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
Sample ID: D-NW, 4'
Lab ID: 24E2342-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/29/24 17:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/4/246/4/240.1 CTF800087.4Total Solids
MBTEXn
mg/kg dry 6/4/246/4/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 6/4/246/4/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 6/4/246/4/240.298 EPA 8260B/C 5035A/[CALC]108Gasoline Range Organics
Diesel Range
mg/kg dry 6/3/246/3/2457EPA 8015 C4150Diesel Range Organics
Project Name: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 4 of 11Page 4 of 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
Sample ID: D-NE, 3'
Lab ID: 24E2342-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/29/24 17:25
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/4/246/4/240.1 CTF800087.7Total Solids
MBTEXn
mg/kg dry 6/5/246/5/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 6/5/246/5/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 6/5/246/5/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/5/246/5/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 6/5/246/5/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 6/5/246/5/240.03 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 6/5/246/5/240.264 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 6/3/246/3/2457EPA 8015 C101Diesel Range Organics
Project Name: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 5 of 11Page 5 of 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
Sample ID: D-SE, 3'
Lab ID: 24E2342-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/29/24 17:15
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/4/246/4/240.1 CTF800085.3Total Solids
MBTEXn
mg/kg dry 6/5/246/5/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 6/5/246/5/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 6/5/246/5/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/5/246/5/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 6/5/246/5/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 6/5/246/5/240.03 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 6/5/246/5/240.262 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 6/3/246/3/2459EPA 8015 CNDDiesel Range Organics
Project Name: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 6 of 11Page 6 of 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
Sample ID: D-SW, 3'
Lab ID: 24E2342-06Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/29/24 17:10
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%6/4/246/4/240.1 CTF800078.4Total Solids
MBTEXn
mg/kg dry 6/4/246/4/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 6/4/246/4/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 6/4/246/4/240.03 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 6/4/246/4/240.322 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 6/3/246/3/2464EPA 8015 CNDDiesel Range Organics
Project Name: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 7 of 11Page 7 of 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
Sample ID: GW-N
Lab ID: 24E2342-07Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/29/24 16:10
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 6/5/246/5/240.005 EPA 8260D/5030BNDBenzene
mg/L 6/5/246/5/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 6/5/246/5/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 6/5/246/5/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 6/5/246/5/240.012 EPA 8260D/5030BNDToluene
mg/L 6/5/246/5/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 6/5/246/5/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 6/3/245/31/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 8 of 11Page 8 of 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
Sample ID: GW-S
Lab ID: 24E2342-08Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/29/24 16:15
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 6/5/246/5/240.005 EPA 8260D/5030B0.022Benzene
mg/L 6/5/246/5/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 6/5/246/5/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 6/5/246/5/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 6/5/246/5/240.012 EPA 8260D/5030B0.035Toluene
mg/L 6/5/246/5/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 6/5/246/5/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 6/3/245/31/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 9 of 11Page 9 of 11
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:
5/30/24 11:44 @ 4.1 °C
6/6/2024
Last Chance #6
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: Last Chance #6 CtF WO#: 24E2342
www.ChemtechFord.com Page 10 of 11Page 10 of 11
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