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eni:Via Overnight Express III IIIIIIIIIIIIIIII ~~„'(~G~/~ C c~RUs ~ Yampa Valley April 2, 1993 .~, gGl;t=~V ~U y'.iZd~UUY ...`,a.~~i p;o Dl~~`-,or~..r .. Steve Gunderson Emergency Management Unit OE-EMU-B2 Colorado Department of Health 4300 Cherry Creek Drive South Denver, Colorado 80222-1530 RE: Report of an Oil Sheen on Foidel Creek Discharge Permit No. CO-0027154 Dear Mr. Gunderson: Cyprus Yampa Valley Coal Corporation 29s87 Routt County Road #27 Oak Creek, Colorado 80467 303-879-3800 ~~ -e., This will serve as the follow uo to my discussion with Ms. Tammv Ottmer concerning the report of an oil sheen on Foidel Creek caused by a discnarge from point Ous, which is covered by the above referenced permit. As indicated to Ms. Ottmer on March 29, 1993 an oil sheer, was observed exiting from point 003 ar,d moving towa•-ds Foidel Creek. The extent of the sheen was extremely limited and was contained by an absorbent boom placed in the creek. The following is a more detailed description of the event and the actions taken to eliminate the oil sheen. On Monday, March 29 Marcus Middleton, company representative, accompanied Bill Rademacher of CTE to discharge point 003 for collection of discharge information required under the above referenced discharge permit. tdhen they arrived at t:^,e site zt approximately 0820. a visible sheen of oil was observed moving Erom the outfaii to Foidel Creeic. They immed ie ~eiy LCl.U L11CU to tilt office for containment equipment and an oil/grease sample container. Upon their return to the discharge point, Bill collected a grab sample while Marcus began efforts to contain the sheen below the discharge point leading to Foidel Creek. Marcus then moved up to the mouth of the outlet and began installing supplemental booms. Two booms were installed at the pond outlet, one at the creek side, one at the first culvert on Foidel, and one below this same culvert. Marcus then returned to the CYVCC office and notified myself zf*_er he had obtained additional more booms. Upon r?turn to the site at approximately 0930, Marcus placed two more booms below the first culvert on Foidel Creek, and another was placed at the mouth of the pond outlet. Two additional booms were placed in the sump above Pond B to replace those booms which had become saturated, and a single boom was placed between the sump and the pond in the diversion below the railroad tracks. The tipple area, which is an active heavy equipment usage area, above the sump and pond (discharge point 003) was walked by Marcus ~`'',~'D