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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 275 <br />Denver, Colorado 80203 <br />Phone: (303) 86fr3567 <br />FAX: (303) 832A106 <br />Interoffice MEMORANDUM <br />OLORADO <br />( V I S I O N O F <br />INERALS <br />EOLOGY <br />:LAMATIO N•NINING <br />SAFETY•SCIENCE <br />to: File, C-1980-001, Edna Mine, CDMR sill ovens <br />image files: C-1980-001 Hydrology o°cen'°r <br />cc: Steven E. Leach, The Pittsburg & Midway Coal Mining Co., 116 InverneR~~or <br />East, Suite 207, Denver, CO 80112 Ronald W. Cattany <br />Beth Hessen, WWC Engineering, 611 Skyline Road, Laramie, WY 820misionDi,eElor <br />Clyde Sharp, Colorado Department f Public Health and Environment, $'3`~~ Resource rmstee <br />Cherry Creek Drive South, Denv , CO 80246 <br />from: Byron G. Walker, EPS <br />subject: Review, Mazch 2006 NPDES Discharge Monitoring Report (DMR), CDPS Permit <br />000032638 <br />date: April 17, 2006 <br />ref: WWC Engineering letter of April 11, 2006 to Colorado Division of Minerals and <br />Geology Re: Edna Mine, Mazch 2006 CPDS <br />The following checklist summarizes the results of the Colorado Division of Minerals and <br />Geology's (CDMG) review of the above-referenced DMRs. <br />A statement in the referenced letter is that discharges from DMP 004 and DMP 007 did not <br />exceed any compliance criteria. <br />Dischaz a Point Dischar e <br /> DMR Re ort Division Observations <br /> <br />004 yes (0.013 mgd average <br />0.021 mgd maximum) not checked (snow) <br />007 yes (0.107 mgd average <br />0.126 mgd maximum) not checked (snow). however, <br />observation of Spring SE-2 is <br />consistent with this report <br />Review Checklist for Discharge Monitoring Report (DMR) <br /> Requirement Requirement <br />Requirement citation complied with ? Comment <br /> ( es I no) <br /> The earlier of date of sample plus 90 <br /> days or same schedule as CDPS permit <br />1. Timely CDMG regulation (28 days after close of the month, page <br />submittal of DMRs 4.05.13 2 a ui <br />O( )( ) yes 19). Dates of sampling were not <br />to CDMG provided. The DMRs were received at <br /> the Division on April 14, 2006, under a <br /> WWC letter dated A ril 11, 2006. <br />Br ir.~v, 11dar 200 nnntx~ rnac aemit 00003~63R,~7~ ~ ~f ~ n~~P~ <br />Office of Office of Colorado <br />Mined land Reclamation Active and Inactive Mines Geological Survey <br />