DERR-2024-006594

195 North 1950 West
Mailing Address: P.O. Box 144840 Salt Lake City, UT 84114-4840
Telephone [phone] ) 359-8853 [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
ERRC-065-24

April 25, 2024

James Hou
U.S. EPA, Region 8
1595 Wynkoop Street
Denver, Colorado 80202

RE: Draft-Final Streamlined Upland Risk Evaluation for Operable Units 2 & 3
Richardson Flat, Summit County, Utah

Dear Mr. Hou:

The Division of Environmental Response and Remediation (DERR) has reviewed the Draft-
Final Streamlined Upland Risk Evaluation for Operable Units 2 & 3 of the Richardson Flat Site
dated March 2023. The DERR has no comments and concurs with finalizing the document.

If you have any questions, please contact me at [phone].

Sincerely,

Maureen Petit, Project Manager
Division of Environmental Response and Remediation

MP/lg