DSHW-2012-001344 - 0901a068802a9fb6

Launch Systems Group ...... .-^ „ ^ , ,. _ PO BOX707 HAND DELIVERED
Brigham City, UT 84302
www.atk.com FEB 0 8 2012
6 Februarv 2012 ^^AH DIVISION OF
o J-eoruary zuiz ^ ^ HAZARDOUS WASTE
8200-FY 12-054 20IZWZ30
Scott T Anderson
Executive Secretary,
c/o UDEQ Division of Solid and Hazardous Waste
PO Box 144880
SALT LAKE CITY UT 84114-4880
Subject: ATK Launch Systems Promontory Facility, Perchlorate Release Report; Promontory
Storage Permit Condition l.T.5. EPA ID #UTD009081357
Dear Mr. Anderson
On January 23, 2012, an inspection of a concrete trench in building M-705 at the Promontory facility
showed that there was a crack, approximately two inches wide next to a drain. This trench routinely
receives perchlorate water with a concentration in the hundreds to thousands of parts per million as
part of the treatment processes in the building. Processes discharging waste water to the trench
were stopped and a repair was made by the following day. The remainder of the trenches were
inspected and found to be in good condition. What caused the crack, how long it existed and what
quantity of perchlorate was released is uncertain, however, we are reporting this release as a
precaution according to permit condition I.T.5 in the Promontory Storage Permit.
Since the release is underneath an operating building no material was recovered. Down gradient
monitoring wells J-1, J-7, and J-8 are in place to monitor any increases in groundwater perchlorate
levels. The location will be designated as a new Solid Waste Management Unit.
If you have questions regarding this report, please contact Paul Hancock, at [phone].
I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry ofthe person or
persons who manage the system, or those persons directly responsible for gathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. 1
am aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations.
V,