DSHW-2018-005567 - 0901a0688084eb72

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June 13, 2018
Mr. James J. Smith
Manager, Environmental Programs
Saint-Gobain Corporation
20 Moores Road
Malvern, Pennsylvania 19355
RE: January 2018 Groundwater Monitoring Report
Former Eastman Christensen Industrial Road Plant
1822 South Industrial Road
Salt Lake City, Utah
Dear Mr. Smith:
This report pertains to the Former Eastman Christensen Industrial Road
Plant (IRP or "the Site"), which is located at 1822 South Industrial Road
in Salt Lake City, Utah. The report summarizes groundwater
monitoring activities conducted on January 30, 2018 and presents
statistical evidence to support a request to discontinue•groundwater
monitoring at the Site. Groundwater monitoring activities were
performed in accordance with a groundwater monitoring program
outlined in the Site Management Plan (SMP; dated April 1, 2014) and a
Utah Division of Waste Management and Radiation Control (DWMRC)
letter dated September 20, 2017.
BACKGROUND
Electro-plating operations that utilized hexavalent chromium (Cr+6)
were historically conducted at the Site. Beginning in the early 1990s,
environmental investigations identified Cr+6 impacts in soil and
groundwater at the Site. During the 1990s, remediatioR activities
(including source removal and groundwater extraction/ treatment)
were employed to address the identified Cr+6 impacts. Following source
removal activities that were conducted in 1998 and 1999, periodic
monitoring has been conducted to assess residual Cr+6 impacts in
groundwater.
In 2014, the SMP was approved by the Utah Division of Solid and
Hazardous Waste (a predecessor organization of DWMRC). In .
accordance with the groundwater monitoring program described in the
Resources
Management
136 East South Temple
Suite 2150
Salt Lake City, Utah 84111
[phone]
[phone] (fax)
www.erm.mm urv of Waste Managemer
and Radiation Control
JUN 1 5 2018
ERM