DSHW-2014-001968 - 0901a068803f9d11

State
GARY R. HERBERT
Gwernor
SPENCERJ. COX
Lieutenant Govemor
Department of
Environmental Quality
Amanda Smith
Execative Director
DIVISION OF SOLID A}ID
HAZARDOUS WASTE
Scott T. Anderson
Director
Solid and Hazardous Waste Control Board
Kevin Munay,Chair
Dennis Riding, Vice-Choir
Eugene Cole, DrPH
JeffCoombs, MPH, LEHS
Mark Franc
Brett Mickelson
Amanda Smith
Shane Whiftrey
Dwayne Woolley
Scott T. Anderson
Execative Secretary
January 29,2014
George Gooch, Manager
ATK Environmental Services
ATK Launch Systems - Promontory
P.O. Box707
Brigham City, UT 84302-A7A7
RE:Corrosion Investigation Report for Monitoring Well Screens
ATK Launch Systems - Promontory Facility
uTD00908 r 357
Dear Mr. Gooch:
The Division of Solid and Haz ardous Waste has completed its review of ATK's report on the
investigation ofcorrosion in monitoring well screens at the Promontory facility. The Division requested
that ATK investigate this issue due to corosion of dedicated purrping systems that has been observed in
the past. In addition, ATK no longer purges monitoring wells when collecting groundwater samples
since they are now collected using Hydra Sleeve grormdwater sarnplers. Unobstructed flow of
groundwater through well screens is important when using this sampling method to ensure that the
samples collected are representative of groundwater conditions in the area ofthe well.
Based on ATK's report and the accompanfng down-hole camera video, it appears that corrosion of well
screens is primarily an issue with stainless steel screens in wells that are located in areas where
groundwater is high in total dissolved solids. The screen for monitoring well F-3, for example, appears
to be heavily corroded from approximately 88 feet to 104 feet, or 16 out of20 feet ofthe screen. It
appears that groundwater flow tlrough the screen ofthis well may be obstructed by corrosion which
could affect the sample quality. However, it is diffrcult to tell from the video the extent of clogging of
the screen.
This issue was discussed with ATK in our last monthly meeting. At that time, it was indicated that ATK
was obtaining a different down-hole camera tlat could view the screen directly rather than straight down
the hole. This should help determine the extent of clogging of well screens by corrosion. We also
discussed investigating other wells that contain stainless steel screens and are located in areas with high
TDS.
195 North 1950 West'Salt Lake City, UT
Mailing Address: P.O. Box 144880 . Salt Lake City, UT 841144880
Telephone [phone] . Fax [phone] . T.D.D. (801) 5364414
tuwut.ileq.utah.goo
hinted on 100% recycled paper
DSHW-2o14-001968
(ovER)
The Division will continue to work with ATK on
Maintenance Inspection which will be conducted
If you have any questions, please call Jeff Vandel
this issue and will revisit it through our Operation and
this year.
at (801) 536-02s7.
Sincerel1_--
STA/JV/KK
c: Paul Hancock, ATK Launch Systems
Lloyd C. Berentzen, MBA, Health Officer, Bear River Health Department
Grant Koford, EHS, Environmental Health Director, Bear River Health Department
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Division of Solid andHazardous Waste