DERR-2024-004987

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February 2, 2024

Mr. Kevin Beery
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West
Salt Lake City, UT 84114

Re: Corrective Action Plan – Meeting Summary
Utah State Prison Uintah Maximum Security Generator
14400 South Pony Express Road, Draper, Utah
Facility Identification No. 4002081, Release OFU

Dear Mr. Beery:
This letter provides a summary of the Corrective Action Plan (CAP) meeting about an underground storage tank (UST)
system release at the former Utah State Prison Uintah Generator, located at 14400 South Pony Express Road, Draper, Utah
(Site). The Site has Facility ID No. 4002081 , Release OFU. The conference call meeting was held on January 30, 2024.
Meeting attendees included representatives of the Division of Environmental Response and Remediation (DERR), the
Division of Fleet – State Fuel Network (SFN), the Division of Facilities and Construction Management (DFCM), and WSP USA
Environment & Infrastructure Inc. (WSP). The purpose of the meeting was to discuss a proposed corrective action for the
Site by removal of contaminated soil.
At the request of the DERR, Subsurface Investigations were conducted at the Site to determine the extent and degree of
petroleum contamination associated with the leaking diesel UST system that was closed by removal on October 5, 2022.
Findings of the investigations were summarized in a report submitted to the DERR (WSP, 2024)1. The report conclusions are
summarized as follows:
• Petroleum hydrocarbon contaminants at the Site exist in the Site soils and consist primarily of total petroleum
hydrocarbon- diesel range organics (TPH -DRO).
• The approximate horizontal extent of TPH -DRO contaminants at concentration levels exceeding the DERR Initial
Screening Level (ISL) of 500 milligrams per kilogram (mg/kg) is shown on the attached figure (excerpt from WSP,
2024).
• The approximate vertical extent of TPH -DRO contaminants exceeding the DERR ISL is approximately 45 feet below
the current ground surface.
The following were discussed in the CAP meeting:
• The DFCM is currently working to prepare the former State Prison are a, which includes the Release Site, for land
redevelopment (referred to as the Point of the Mountain plan). Demolition work at the Site have been completed ,
and the anticipated time frame to begin land redevelopment work at the site is Q4 of 2024.
• The preferred corrective action at the Site is dig and haul of the contaminated soils.
• It was recommended that land development plans that are currently being developed for the Point of the
Mountain area will be evaluated as part of the CAP development to better understand the specific land use and

1 WSP, 2024. Additional Subsurface Investigation Report, Utah State Prison Uintah Generator, Facility ID 4002081 Release OFU, 14400
South Pony Express Road, Draper, Utah WSP USA Environment & Infrastructure Inc., January 12 , 2024
10876 South River Front
Parkway
Suite 250
South Jordan, Utah 84095
[phone]

wsp.com

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potential exposure for workers at the Site. WSP will work with the DFCM to obtain the relevant information to be
presented in the CAP.
After receiving the DERR approval, WSP will prepare the CAP, to present a detailed plan and cost estimate for soil removal
and confirmation sampling at the Site. Although Dig and Haul is the preferred corrective action, other remedial alternatives
will be evaluated in the CAP.
Please contact Corey Buchanan at [e-mail] or Ehud Ardon at [e-mail] if you have
questions or comments regarding this letter.

Sincerely,
WSP USA Environment & Infrastructure Inc.

Submitted By: Reviewed By:

Corey Buchanan Ehud Ardon
Project Manager Senior Environmental Scientist
Certified UST Consultant # CC -275 Certified UST Consultant # CC-279

Attachments:
Figure 3: TPH-DRO Exceedances in Soil

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Vicinity Map
TPH-DRO Exceedances in Soil
Utah State Prison Uintah
Maximum Security Generator
14400 South Pony Express Road, Draper, Utah
Facility ID No. 4002081, Release Site OFU
The map shown here has been created with all due and reasonable care and is strictly
for use with WSP USA Project Number 23-814-00504. This map has not been certified
by a licensed land surveyor, and any third party use of this map comes without
warranties of any kind. WSP USA assumes no liability, direct or indirect, whatsoever
for any such third party or unintended use.
23-814-00504
EA
1/4/2024
Job No.
PM:
Date:
Scale:
FIGURE
3
Legend
!.Soil Boring Location
Approximate extent of TPH-DRO
>500 mg/kg in soils at 3-7 ft bgs
Approximate extent of TPH-DRO
>500 mg/kg in soils at 14-30 ft bgs
Approximate extent of TPH-DRO
>500 mg/kg in soils at 38-45 ft bgs
0 2010
Feet ±
1 in = 20 feet
DERR = Division of Environmental
Response and Remediation
DRO = Diesel Range Organics
TPH = Total Petroleum Hydrocarbons
mg/kg = micrograms per kilogram
ft bgs = feet below ground surface
bold = denotes result exceeded
DERR Initial Screening Level
Sample Depth
(ft bgs)
TPH-DRO
(mg/kg)
6.5-7 11500
16.5-17 8200
29.5-30 8780
SS-3
Sample Depth
(ft bgs)
TPH-DRO
(mg/kg)
17.5-20 9250
44-45 <60
61-62 <55
75-76 <56
TMW-1
Sample Depth
(ft bgs)
TPH-DRO
(mg/kg)
4-5 <59
16-17 <50
26-27 <66
44-45 5860
SB-5
Sample Depth
(ft bgs)
TPH-DRO
(mg/kg)
4-5 <64
18.5-19.5 3140
23.5-25 3170
38-39 9320
SB-10
Sample Depth
(ft bgs)
TPH-DRO
(mg/kg)
6.5-7 44400
14-15 9940
25.5-26.5 6370
43-44 <60
SB-12
Site Location
Sample Depth
(ft bgs)
TPH-DRO
(mg/kg)
3-4 <59
22.5-23.2 946
39.5-40 <50
SS-2
Sample Depth
(ft bgs)
TPH-DRO
(mg/kg)
5-6 <66
17-18 <64
24-25 <60
42.5-43.5 3490
SB-11