DERR-2024-011474

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-0422-24
October 17, 2024

CERTIFIED MAIL
RETURN RECEIPT REQUESTED
John Amato
Chevron Environmental Management Company
324 West El Segundo Boulevard, MO-182
El Segundo, California 90245
Re: Additional Sampling Requirements
Former Richfield Tire, located at 197 North Main Street, Richfield, Utah
Facility Identification No. 2000278, Release Site GZH
Dear Mr. Amato:

On September 20, 2024, the Division of Environmental Response and Remediation (DERR)
received the July 2024 Groundwater Monitoring Report from your consultant. Due to groundwater
concentrations in MW-1 and MW-2 being above the DERR cleanup guidelines, the DERR is
requesting continued quarterly groundwater monitoring and sampling, at least through April 2025.
Sampling events are approximately October/November 2024, January 2025, and April 2025. The
quarterly monitoring reports should be submitted to the DERR within 50 days after each event.
Once the final groundwater monitoring report has been submitted, the DERR will evaluate the
release to determine if it qualifies for no further action (closure) or if additional work is required.
Petroleum storage tank (PST) assessment and cleanup activities must be supervised by a
Utah-Certified Consultant. All environmental samples must be collected by a Utah-Certified
sampler following sampling protocols as outlined in Utah Admin. Code R311-205. Environmental
samples must be analyzed for both gasoline and diesel constituents using the methods indicated in
the Environmental Media Sampling Handbook (June 1, 2021) available on the DERR website.
Facility ID# 2000278
Page 2
If you have any questions, please contact Eileen Brennan, the DERR project manager, at
[phone].

Sincerely,
Brent H. Everett, Director
Division of Environmental Response and Remediation
BHE/EB/rr

cc: Nathan Selin, Executive Director, Central Utah Public Health Department
Eric Larsen, Environmental Director, Central Utah Public Health Department
John Chartier, District Engineer, Utah Department of Environmental Quality
Jason Cristino, Project Manager, Arcadis U.S., Inc.
Taura Nichols, Professional Engineer, Arcadis U.S., Inc.
Kelly Hoehn, Staff Geologist, Arcadis U.S., Inc.
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Chevron Environmental
ATTN :John Amato
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324 W . El Segundo Blvd ., M0-182
El Sequndo, CA 90245
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