HomeMy WebLinkAboutDSHW-2008-024774 - 0901a068801e1f12October 16, 2008
David P. Gosen, P.E.
Director, Environmental Services
ATK Launch Systems – Promontory
P.O. Box 707
Brigham City, UT 84302-0707
RE: Fall 2008 Groundwater Monitoring Plan, ATK Launch Systems - Promontory Facility, EPA I.D. #UTD009081357
Dear Mr. Gosen:
This letter is in regard to ATK’s Fall 2008 Groundwater Monitoring Plan. On August 20, 2008, ATK submitted a list of wells to sample for this semiannual period. The wells would be
sampled for VOCs, metals, and perchlorate. Following this submittal, the Division discussed with ATK the possibility of sampling most, if not all of the monitoring wells in order to
provide a comprehensive set of current data for the human health risk assessment that is due March 2, 2009 (in accordance with Post-Closure Permit Conditions V.A.2. and V.A.3.). In
response, ATK submitted an additional list of wells to add to the original list. In addition to this expanded list of wells, ATK agreed to collect the following samples: well C-1 for
metals (including cobalt); wells A-2, C-1 and B-3 for explosives (including HMX and RDX) and wells B-7, E-3 and E-4 for nitrate. The Division’s request that these specific wells be
sampled for these compounds is based on sample results obtained previously by ATK.
This amended groundwater monitoring plan should provide current, comprehensive data for the risk assessment and is hereby approved. The Division recognizes that ATK has significantly
expanded the sampling plan. Thank you for your cooperation. If you have any questions regarding this letter, please contact Jeff Vandel at 538-9413.
Sincerely,
ORIGINAL DOCUMENT SIGNED BY DENNIS R. DOWNS ON 10/16/08
Dennis R. Downs, Executive Secretary
Utah Solid and Hazardous Waste Control Board
DRD\JV\tjm
c: Paul Hancock, ATK Launch Systems
Dave Covington, ATK Launch Systems
Lloyd Berentzen, Deputy Director, Bear River Health Department
October 16, 2008
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TN200800925
288 North 1460 West • Salt Lake City, UT
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State of Utah
JON M. HUNTSMAN, JR.
Governor
GARY HERBERT
Lieutenant Governor
Department of Environmental Quality
Richard W. Sprott
Executive Director
DIVISION OF SOLID AND HAZARDOUS WASTE
Dennis R. Downs
Director