DERR-2024-012261

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
ERRC-001-23

January 4, 2023

Bikram Shrestha
Linde Gas & Equipment Inc.
3930 Michigan Street
Hammond, Indiana 46323

RE: Praxair 2300 East Voluntary Cleanup Program Site #C049
Salt Lake City, Salt Lake County, Utah

Dear Mr. Shrestha:

The Division of Environmental Response and Remediation (DERR) received a document
entitled Proposed Remedial Action Plan (RAP), dated October 17, 2023, as part of Voluntary
Cleanup Program (VCP) activities occurring at the Praxair 2300 East site in Salt Lake City, Salt
Lake County, Utah. On October 22, 2022, a notice was published in the Salt Lake Tribune beginning
a required 30-day public comment period for the RAP. Additionally, adjacent landowners were
notified.

As of the closure of the public comment period on November 21, 2022, the DERR had not
received any public comments, either in writing or verbally, addressing the technical provisions or
the scope of work proposed in the RAP. The DERR has reviewed the RAP and has no additional
technical comments regarding the document itself. As such, the DERR accepts the RAP with the
change noted in the next paragraph.

While no public comments were submitted, the DERR spoke with Resident A during the
public comment period. Based on the discussion, the DERR believes it is appropriate to conduct
additional sampling beyond the monitoring proposed in the RAP for Residence A. Please propose
a sampling strategy under the contingency plan of the RAP to evaluate current sub-slab soil gas
conditions under Residence A. Additionally, the sampling strategy should propose indoor air
sampling of rooms in the basement that have not been sampled during previous routine monitoring
events. The data will be evaluated to determine next steps, if any.

Page 2
Please begin the work proposed in the RAP as soon as possible and continue to keep the
DERR informed of the schedule. The DERR will be on-site to evaluate the remediation work and
to collect split samples, as applicable. Also, please submit a sampling work plan for Residence A
as soon as possible. The DERR looks forward to the successful remediation of the Praxair 2300
East site.

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

Sincerely,

Joseph H. Katz, Project Manager
Division of Environmental Response and Remediation

JHK\tt

cc: John Russell, Stantec
Jack Pacuska, Linde
Angela Dunn, MD, MPH, Executive Director, Salt Lake County Health Department