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Phone Call Log for BypasslUpset ReportingJAN 3 O }991 <br />Water Quality Control Division <br />Permits and Enforcement Section <br />Entity: Mountain Coal Company -West Elk Mine <br />Permit No.: CO-0038776 Persons Reporting: Kalhy Welt and Paige <br />Bevitle <br />County: Gunnison Phone No.: (970)929-2256//(303)293-7913 <br />Start Date of Potential Upset: Mon., 20 Jan. 97 Bypass/Upset Duration: Not yet known. <br />Date & Time of Update: 27 Jan. 97, 9:20 a.m. Has this happened before: Yes <br />Probable Cause: See phone report for9:00 a.m., 21 Jan. 97. <br />Written Report to Follow: Yes <br />Comments: Welt reported that the latest estimated inflow of fault water into the mine is 2700 <br />gpm. <br />MCC has installed three seals in the Southeast headgate "to dam up and control flow as <br />much as possible " Behind each seal is a pump, capable of pumping about 1300 gpm. <br />Pipelines were installed directly from the seals. MCC plans to tie these pipelines into <br />existing pipelines running out of the mine. This will enable intercepting the fault area mine <br />water at the source and transporting the water to the surface without it traveling along the <br />mine floor and picking up sediment. MCC believes this water will meet TSS limitations <br />without treatment. MCC will request approval for a bypass so they can directly discharge <br />this water. The WQCD anticipates approving the bypass as long as all permit effluent <br />limitations are met. Today, they expect to make the connection from the seals' piping to the <br />mine-to-surface pipe. However, the surface lines are currently frozen and will need to <br />thaw/be thawed before the bypass piping will be complete. <br />At 3 p.m. Friday, January 24, 1997, MCC started discharging from pond MB-2R through <br />Outfall 004. MCC expects the effluent to meet permit limits. Saturday, apre-discharge <br />sample measured TSS at 44 mg/1. MCC stopped chemical treatment prior to discharge. <br />MB-2R was still discharging at the time of this phone report. <br />Sunday, January 26, 1997, Pond MB-1 started discharging. MCC expects the discharge to <br />be compliant based upon pre-discharge sample results. MCC treated Pond MB-1 with alum <br />on Saturday, using the hydro-seeder. Once MB-1 is drained, they will switch from filling <br />MB-2R io filling MB-1. <br />i <br />Recorded by: Kathleen Sullivan ~. <br />Date: January 27, 1997 ~ <br />cc- Dwain Watson, District Engineer, Field Support Section <br />David Berry/Mike Boulay, DMG <br />Original to MS-3 File <br />