DSHW-1996-004004 - 0901a068801598f6

THMOKOL DEFENSE AND LAUNCH VEl^PE DIVISION
P.O. BOX 689
BRIGHAM CITY, UT 84302-0689 SPACE • DEFENSE • FASTENING SYSTEMS
801-863-3511 _ HAND DEUVERED
2 May 1996 DIVISIOM OF SOLID &
W113:FY96:125 MA7'ARDOUS WASTE
MAYoO 1996 «a,
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Dennis R. Downs, Executive Secretary K Ql^ rp i U 5^
State of Utah * ^^'^^^ l^
Department of Environmental Quality
Division of Solid and Hazardous Waste
288 North 1460 West
P. O. Box 144880
Salt Lake City, Utah 84114-4880
Att: Mr. Otis Willoughby
Dear Mr. Downs
Subject: Request for Concurrence Regarding Permit Requirements to Treat Prior to
Processing at a NPDES Facility
On April 30 I spoke with Mr. Otis Willoughby regarding the need for a treatment Permit
to pre-treat various waste waters prior to placement into the M-705 treatment plant. Mr
Willoughby was asked, can we perform various physio-chemical treatment processes
outside the permitted system at M-705 prior to introduction into the NPDES process.
This treatment would be performed in drums or tanks and would be needed to make the
waste water fully treatable at the pfocess plant. The pre-treatment might include such
processes as metal chelafion, metal precipitation, ion exchange, oxidation/reduction and
chemical conversions.
Mr. Willoughby said that he had spoken with various people within the DSHW and that
they would consider this type of waste water pre-treatment to be within the scope of the
NPDES permit, so long as all permit conditions were met.
Please review this issue and let me know if my understanding is correct. If you have
any question or need additional clarificafion, I can be reached at [phone]. Thank
you for your assistance in this matter.
Sincerely /7
/^-^^^^ U(/2A^
Gene Curtis, Engineer
Hazardous Waste Disposal
cc: A. K. Lemon, J. D. Thompson, G. L. Mower