DERR-2024-004472

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-0069-24
February 16, 2024

Calvinco, Co.
Attention: Izola Vincent, President and Registered Agent
1230 West 1400 North
Lehi, Utah 84043

Re: Additional Sampling Requirements and Vapor Sampling Plan
Former Calvinco, Co., UST, located at 3120 South Main Street, South Salt Lake City, Utah
Facility Identification No. 4000124, Release Site OBL

Dear Ms. Vincent:

The Division of Environmental Response and Remediation (DERR) completed its review
of Calvinco Company’s (CC) Soil Vapor Sampling proposal letter, submitted to the DERR on
January 3, 2024, by Underwood Environmental Consulting, Inc. (UEC), for the above-referenced
facility.

The CC Soil Vapor Sampling proposal letter indicates that CC was unable to secure an
access agreement to perform sub-slab vapor testing in the Intermountain Lock and Security Supply
(IML) building due to concerns for the concrete foundation, nearby utilities, and the perceived risks
identified by IML. According to the CC Soil Vapor Sampling proposal letter, IML representatives
claim there have never been complaints of hydrocarbon odors inside the building.

In lieu of the in-building sub-slab testing near MW-7, the DERR project manager suggests
a sub-slab testing point outside of the building placed in a concrete slab, near the south building
entrance, be considered; however, sub-slab testing near MW-5 will still be required.

The revised soil vapor sampling plan should include renderings of the building’s internal
layout at ground level, the type of work space present, the layout of the parking garage and the
nearby subsurface utilities, presented as problematic to the tests. The air sample analysis must be
performed by an approved laboratory for the MBTEXN and TPH by Method TO-15.

In accordance with Utah Code R311-202, the DERR requires that CC provide a soil-vapor
testing plan within 90 days of receipt of this letter.
Facility ID# 4000124
Page 2
If you have any questions concerning this letter, please contact Mark Crim, the DERR
project manager, at [phone].
Sincerely,
Brent H. Everett, Director
Division of Environmental Response and Remediation
BHE/MEC/rr

cc: Ron Lund, MPH, LEHS, Environmental Health Director, Salt Lake County Health Department