HomeMy WebLinkAboutDSHW-2010-053635 - 0901a068801e3353August 17, 2010
Pete Holmgren
13675 West Highway 102
Tremonton, UT 84337-9112
RE: Groundwater Monitoring Results
Connor and Fork Springs
Dear Mr. Holmgren:
On June 1, 2010, employees of the ATK Launch Systems, Environmental Services group collected water samples from Connor and Fork Springs. The Division of Solid and Hazardous Waste requested
that ATK sample these springs to provide updated data for contaminated groundwater monitoring at the facility.
The analytical results for these samples are enclosed with this letter. The two primary contaminants that have been observed at the ATK facility are trichloroethene and perchlorate.
Both of these contaminants were below detection limits in the Connor and Fork Spring samples. In addition, no other contaminants were detected in either sample and the concentrations
of metals observed are within background levels. These results are consistent with the results that were obtained from sampling the springs in 2001, 2002, 2006 and 2010. In summary,
it appears that Connor and Fork Springs have not been impacted by contaminated groundwater.
ATK monitors other springs, located along Highway 83 (e.g. Shotgun Spring), and wells as part of its groundwater monitoring program that is regulated by the Division. Contaminants have
been detected in some of these springs. A Human Health Risk Assessment (HHRA) for groundwater contamination is currently being conducted by ATK. A HHRA Report was submitted to the
Division in April, 2009. This report was reviewed and comments were sent to ATK. The Division is currently reviewing ATK’s response to the comments and a revised HHRA. Please note
that ATK will be required to conduct an Ecological Risk Assessment following the HHRA.
If you have any questions, please contact Jeff Vandel at (801) 536-0257.
Sincerely,
ORIGINAL DOCUMENT SIGNED BY SCOTT T. ANDERSON ON 8/17/2010
Scott T. Anderson, Director
STA\JV\tjm
Enclosure
c: Paul Hancock, ATK Launch Systems
Lloyd Berentzen, Deputy Director, Bear River Health Department
File to: ATK Launch Systems – Promontory
August 17, 2010
Page 2
TN201000677
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144880 • Salt Lake City, UT 84114-4880
Telephone (801) 536-0200 • Fax (801) 536-0222 • T.D.D. (801) 536-4414
www.deq.utah.gov
TN201000677 Printed on 100% recycled paper
State of Utah
GARY HERBERT
Governor
GREG BELL
Lieutenant Governor
Department of Environmental Quality
Amanda Smith
Executive Director
DIVISION OF SOLID AND HAZARDOUS WASTE
Scott T. Anderson
Director