DERR-2025-001756

SITE VISIT REPORT
DATE: 03/07/2025
SITE: Redwood Road Dump
SITE ADDRESS: 1850 West Indiana Avenue, Salt Lake City, UT
PREPARED BY: Allison Stanley
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West
Salt Lake City, UT 84116

ATTENDEES: Allison Stanley (DERR); Nancy Saunders (Terracon); Stephen Maliszeski
(Terracon)
ARRIVAL TIME: 10:30 AM - DEPARTURE TIME: 11:00 AM
Is the work being performed in a manner consistent with the accepted workplan? Yes

SUMMARY:
The purpose of this visit was to discuss the installation plan for the vapor barrier at the Medical
Building. The vapor barrier product (20 mil Drago Wrap) is consistent with the barrier used in
other buildings at the Site. The primary concern was how to properly seal the vapor barrier to the
concrete foundation with a foam layer present. Terracon and the contractor will collaborate to
determine the best installation method. Installation is scheduled for mid-next week. The design
for this building includes a vapor barrier only with a layer of gravel aggregate underneath.

PHOTO LOG:

Photo 1: Foam layer on the inside of the concrete foundation. The foam is not glued to the wall.

Photo 3: Another view of the foam attached (not glued) to the concrete foundation.

Photo 3: Portion of the Medical Building footprint.