DSHW-2018-010482 - 0901a06880917504

DSHW-2018-010482 195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144880 • Salt Lake City, UT 84114-4880 Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov Printed on 100% recycled paper
State of Utah
GARY R. HERBERT Governor SPENCER J. COX Lieutenant Governor
Department of
Environmental Quality
Alan Matheson Executive Director DIVISION OF WASTE MANAGEMENT AND RADIATION CONTROL Scott T. Anderson Director
November 7, 2018
Kris Blauer, Manager
Environmental Services ATK Launch Systems – Promontory P.O. Box 707 Brigham City, Utah 84302-0707
RE: Corrective Action Report for SWMU #553 UTD009081357 Dear Mr. Blauer:

The Division of Waste Management and Radiation Control has completed its review of ATK’s Corrective Action Report for SWMU #553 (photographic fixer discharge from Building M-19A). Based on the report, it appears that ATK was successful in removing the contaminated soil at the SWMU. The confirmation soil sample results for hexavalent chromium were all non-detect although
due to interferences during the analysis, the minimum reporting limits for the samples (0.5 mg/kg and 2.5 mg/kg) were above the EPA Regional Screening Level for residential soil (0.3 mg/kg). The Division believes that a no further action determination is appropriate for SWMU #553 since the hexavalent chromium results were all non-detect, the total chromium results were in the range of
background concentrations and the contaminated zone could be identified visually in the field and was
removed. Furthermore, additional sampling and analysis would likely result in the same analytical problem with interference. If you have any questions, please call Jeff Vandel at [phone].

Sincerely,
Scott T. Anderson, Director
Division of Waste Management and Radiation Control (Over)

STA/JV/km
c: Lloyd Berentzen, MBA, Health Officer, Bear River Health Department
Grant Koford, EHS, Environmental Health Director, Bear River Health Department Amy Hensley, USEPA Region 8 Paul Hancock, ATK Launch Systems