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HYDRO28425
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HYDRO28425
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Entry Properties
Last modified
8/24/2016 8:47:38 PM
Creation date
11/20/2007 9:24:13 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Hydrology
Doc Date
1/31/2005
Doc Name
4th Qtr 2004 DMRs
From
Mountain Coal Company
To
DMG
Permit Index Doc Type
DMR’s
Media Type
D
Archive
No
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\_MOUNTAIN COAL <br />"~ \~~ COMPANYL.L.C. <br />A Subsidiary of Arch Western Resources, LLC <br />January 27, 2004 <br />West Elk Mine <br />POBOx 591 <br />5174 Highway 133 <br />Somerset, CO 81434 <br />(970)929-5015 <br />Fax (970) 929-5595 <br />RECEIVED <br />JAf~ g ~ 2005 <br />Ms Cazla Lenkey <br />Colorado Department of Public Health and the Environment Division of Minerals a Geology <br />Water Quality Control Division (WQCD), Enforcement and Compliance Section <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <br />Re: Mountain Coal Company, LLC (MCC), West Elk Mine, CDPS Permit No. CO-0038776, <br />Discharge Monitoring Reports for the Fourth Quarter 2004. <br />Dear Ms. Lenkey: <br />Attached are the Discharge Monitoring Reports (DMRs) for the fourth quarter of 2004. Also attached <br />are the Biomonitoring reports from the SeaCrest Group dated November 12, 2004, for Outfa11017. <br />The discharge from Outfa11017, is experiencing high alkalinity values resulting in failure of the <br />biomonitoring tests in Daphnia magna populations. The new NPDES (CDPS) Permit requires the <br />effects of the TDS be accounted for in subsequent testing. Accordingly, SeaCrest performed a series of <br />tests in conjunction with the original effluent, as part of the permit requirements to confirm the effects <br />of TDS against other possible contaminants. The reports detail the results of the tests. The fathead <br />minnow, Pimephales promelas, populations were unaffected. Also attached are the complehensive <br />analyses of the 017 Dischage Point water to show that the alkalinity is not masking some other source <br />of toxicity. <br />MCC has established through the testing that alkalinity is the causative issue with the Daphnia magna <br />populations. <br />Should you or your staff have questions or need additional information concerning these Dischage <br />Monitoring Reports, please contact me at (970) 929-2238. <br />Sinc'e~ly~~ <br />eery BaY1he <br />Environmental Engineer <br />Enclosures; NPDES Forms (DMRs) for 4th Quarter 2004 <br />ca James Burnell - CDMG <br />K. Fucik -SeaCrest Labs <br />Availability of Records File -NPDES <br />
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