DSHW-2007-007393 - 0901a06880162a5b (4)

David P. Gosen, P.E.
Director, Environmental Services
ATK Launch Systems – Promontory
P.O. Box 707
Brigham City, UT 84302-0707

RE: Class 2 Storage Permit Modification Approval, Tracking Number MOD07.00158, ATK Launch Systems - Promontory Facility, EPA I.D. #UTD009081357

Dear Mr. Gosen:

The Class 2 Storage Permit Modification as requested by ATK in correspondence dated January 10, 2007 is hereby approved. The public comment period for this modification request ended
on March 19, 2007. No comments were received from the public.

Enclosed with this letter are the pages of the Storage Permit that were revised due to the permit modification. The pages are marked, in the header of the document, as “Last Revision:
March 22, 2007.” Please replace the affected pages of the permit with the ones enclosed. If you have any questions, please contact Jeff Vandel at [phone].

Sincerely,

ORIGINAL DOCUMENT SIGNED BY DENNIS R. DOWNS ON 4/3/07
Dennis R. Downs, Executive Secretary
Utah Solid and Hazardous Waste Control Board

DRD\JV\tm

Enclosures

c: Gene Curtis, ATK Launch Systems
Lloyd C. Berentzen, MBA Health Officer, Bear River Health Department
Kathleen Barker, Environmental Program Coordinator, DSHW

April 3, 2007

TN200700395
288 North 1460 West • PO Box 144880 • Salt Lake City, UT 84114-4880 • phone [phone] • fax [phone]
T.D.D. [phone] • www.deq.utah.gov

State of Utah

Department of Environmental Quality

Dianne R. Nielson, Ph.D.
Executive Director

DIVISION OF SOLID AND HAZARDOUS WASTE
Dennis R. Downs
Director

JON M. HUNTSMAN, JR.
Governor

GARY HERBERT
Lieutenant Governor