DERR-2024-011373

Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]
1
Rockwell Solutions, Inc.
718 E Bridger Lane
Elk Ridge, UT 84651
[phone]
September 13, 2024

Mr. Mike Pool
Springville Power
Whitehead Power Plant
450 W 700 North
Springville, UT

Re: Confirmation Sampling
Whitehead Power Plant, 777 N 425 W, Springville, UT
Facility ID: 1000990 LUST ID: OGA

Dear Mr. Pool:

Rockwell Solutions, Inc. completed confirmation sampling at the above-referenced facility in
accordance with a request from the Utah Division of Environmental Response and Remediation
(DERR).

INTRODUCTION

On the morning of November 3, 2022, diesel fuel was observed on the surface of a pond at the
intersection of Mountain Springs Parkway and Spring Creek Place. Springville City traced the fuel
back to a manhole at the Whitehead Power Plant near the above ground storage tanks (ASTs).
Springville City personnel placed booms in strategic areas along the surface water and in the
manhole to contain the fuel. Figure 1 shows the power plant and the impacted surface water.

An investigation detected a leak in the piping on the east side of the north AST. The piping was
repaired. It was calculated that approximately 178 gallons of diesel fuel had been released.

Booms and absorbent pads were used and regularly replaced to capture as much product as possible.
A pump was set in the storm drain on the south side of the ASTs and diesel fuel and contaminated
water was pumped into an oil-water separator inside of the power plant. By November 16, there
was no longer any fuel or sheen on the surface water. The pump in the storm drain continued to
operate until mid-January 2023.

The subsurface investigation in November 2022 defined the extent of residual soil and groundwater
contamination to the area immediately around the ASTs.

On July 3, 2024, DERR requested that five grab soil samples be collected from surface soils along
the waterline level of the pond embankments that were impacted by the 2022 petroleum release at
the power plant. As requested, two samples were collected nearest to where the petroleum sheen
Confirmation Sampling, Springville Power, Facility #1000990, Release OGA

Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]
2
was daylighting into the first surface pond. Three additional samples were taken from the farthest
area of the pond system where the sheen was observed. Figures 1 and 2 show the site, pond system,
and sampling locations.

The soil samples were submitted for laboratory analysis of benzene, toluene, ethylbenzene, xylenes,
naphthalene (BTEXN) using EPA Method 8260 and total petroleum hydrocarbons-diesel range
organics (TPH-DRO) using EPA Method 8015.

Table 1 lists the analytical results of all soil samples collected during the subsurface investigation
and confirmation sampling. No hydrocarbons were detected in any of the confirmation samples.

Rockwell Solutions recommends the release be closed and the site issued a No Further Action letter.

Please feel free to contact me should you have any questions or concerns at 801-361-2930.

Sincerely,

David S Hansen
Rockwell Solutions, Inc.
Certified UST Consultant CC130

cc: Eileen Brennan, DERR
NORTH
Approx. scale in feet
00 900
SS-N,GW-N,
USC-1
SS-S,GW-S
Figure 1 Area Map
Whitehead Power Plant
777 N 425 West
Springville, UT
Surface Water
Site
Discharge Point from
Power Plant Storm Drain
Pond 1
Pond 2
Pond 2: Farthest pond where sheen was observed
Pond 1: First pond where fuel appeared
SS-N,GW-N,
USC-1
Surface Water
Site
Discharge Point from
Power Plant Storm Drain
Pond 2
Pond 1, N
Pond 1, S
NORTH
Approx. scale in feet
00 40
Figure 2 Pond 1
Whitehead Power Plant
777 N 425 West
Springville, UT
Sample Location
SS-N,GW-N,
USC-1
Surface Water
Site
Discharge Point from
Power Plant Storm Drain
Pond 2
Pond 2, E
Pond 2, S
NORTH
Approx. scale in feet
00 40
Figure 3 Pond 2
Whitehead Power Plant
777 N 425 West
Springville, UT
Sample Location
Pond 2, W
Sample
Depth
(feet) Date
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-DRO
(mg/kg)
0.2 9 5 142 51 500
0.9 25 23 142 51 5,000
B-1, 5-6' 5-6 1/10/2023 <0.009 <0.02 <0.02 <0.02 <0.02 348
B-2, 5-6' 5-6 1/10/2023 <0.01 <0.03 <0.03 <0.03 <0.03 <63
B-3, 5-6' 5-6 1/10/2023 <0.01 <0.03 <0.03 <0.03 <0.03 <61
B-4, 5-6' 5-6 1/10/2023 <0.009 <0.02 <0.02 0.03 <0.02 <60
B-5, 5-6' 5-6 1/10/2023 <0.01 <0.03 <0.03 <0.03 <0.03 <57
Pond 1, S - 8/22/2024 <0.01 <0.03 <0.03 <0.10 <0.03 <70
Pond 1, N - 8/22/2024 <0.02 <0.04 <0.04 <0.12 <0.04 <82
Pond 2, S - 8/22/2024 <0.02 <0.05 <0.05 <0.14 <0.05 <99
Pond 2, W - 8/22/2024 <0.01 <0.03 <0.03 <0.10 <0.03 <70
Pond 2, E - 8/22/2024 <0.01 <0.03 <0.03 <0.10 <0.03 <60
MBTEXN and TPH-GRO analyzed by EPA Method 8260
TPH-DRO analyzed by EPA Method 8015
mg/kg = milligrams per kilogram, which approximates parts per million.
shaded cells indicate concentrations that exceed the Initial Screening Level
Confirmation Samples
Initial Screening Level
RBCA Tier 1 Screening Level
Table 1
Soil Analytical Results
Whitehead Power Plant (Facility ID: 1000990, LUST ID:OGA )
777 N 425 West, Springville, Utah
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: 24H2237
Project: Springville Power
8/29/2024
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 8
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:
8/23/24 17:23 @ 8.6 °C
8/29/2024
Springville Power
Sample ID: Pond 1, S
Lab ID: 24H2237-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/22/24 13:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%8/26/248/26/240.1 CTF800071.5Total Solids
Diesel Range
mg/kg dry 8/26/248/26/2470EPA 8015 CNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 8/27/248/27/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 8/27/248/27/240.10 EPA 8260D/5030BNDXylenes, total
Project Name: Springville Power CtF WO#: 24H2237
www.ChemtechFord.com
Page 2 of 8Page 2 of 8
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:
8/23/24 17:23 @ 8.6 °C
8/29/2024
Springville Power
Sample ID: Pond 1, N
Lab ID: 24H2237-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/22/24 13:35
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%8/26/248/26/240.1 CTF800060.8Total Solids
Diesel Range
mg/kg dry 8/26/248/26/2482EPA 8015 CNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 8/27/248/27/240.02 EPA 8260D/5030BNDBenzene
mg/kg dry 8/27/248/27/240.04 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 8/27/248/27/240.04 EPA 8260D/5030BNDNaphthalene
mg/kg dry 8/27/248/27/240.04 EPA 8260D/5030BNDToluene
mg/kg dry 8/27/248/27/240.12 EPA 8260D/5030BNDXylenes, total
Project Name: Springville Power CtF WO#: 24H2237
www.ChemtechFord.com
Page 3 of 8Page 3 of 8
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:
8/23/24 17:23 @ 8.6 °C
8/29/2024
Springville Power
Sample ID: Pond 2, S
Lab ID: 24H2237-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/22/24 13:55
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%8/26/248/26/240.1 CTF800050.7Total Solids
Diesel Range
mg/kg dry 8/26/248/26/2499EPA 8015 CNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 8/27/248/27/240.02 EPA 8260D/5030BNDBenzene
mg/kg dry 8/27/248/27/240.05 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 8/27/248/27/240.05 EPA 8260D/5030BNDNaphthalene
mg/kg dry 8/27/248/27/240.05 EPA 8260D/5030BNDToluene
mg/kg dry 8/27/248/27/240.14 EPA 8260D/5030BNDXylenes, total
Project Name: Springville Power CtF WO#: 24H2237
www.ChemtechFord.com
Page 4 of 8Page 4 of 8
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:
8/23/24 17:23 @ 8.6 °C
8/29/2024
Springville Power
Sample ID: Pond 2, W
Lab ID: 24H2237-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/22/24 14:05
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%8/26/248/26/240.1 CTF800071.7Total Solids
Diesel Range
mg/kg dry 8/26/248/26/2470EPA 8015 CNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 8/27/248/27/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 8/27/248/27/240.10 EPA 8260D/5030BNDXylenes, total
Project Name: Springville Power CtF WO#: 24H2237
www.ChemtechFord.com
Page 5 of 8Page 5 of 8
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:
8/23/24 17:23 @ 8.6 °C
8/29/2024
Springville Power
Sample ID: Pond 2, E
Lab ID: 24H2237-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 8/22/24 14:15
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%8/26/248/26/240.1 CTF800083.7Total Solids
Diesel Range
mg/kg dry 8/26/248/26/2460EPA 8015 CNDDiesel Range Organics
Volatile Organic Compounds
mg/kg dry 8/27/248/27/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 8/27/248/27/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 8/27/248/27/240.08 EPA 8260D/5030BNDXylenes, total
Project Name: Springville Power CtF WO#: 24H2237
www.ChemtechFord.com
Page 6 of 8Page 6 of 8
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:
8/23/24 17:23 @ 8.6 °C
8/29/2024
Springville Power
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: Springville Power CtF WO#: 24H2237
www.ChemtechFord.com
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