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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />Interoffice MEMORANDUM <br />COLORADO <br />DIVISION O F <br />MINERALS <br />GEOLOGY <br />0.ECLANATION•NINING <br />SAFETY•SCIENCE <br />to: File, C-1980-001, Edna Mine, CDMR Bill Owens <br />image files: C-1980-001 Hydrology cOVen'°` <br />cc: Steven E. Leach, The Pittsburg & Midway Coal Mining Co., 116 Invern~~o~ <br />East, Suite 207, Denver, CO 80112 Runaidw Caltany <br />Beth Hessen, WWC Engineering, 611 Skyline Road, Laramie, WY 8208Q:ion DirectoE <br />Clyde Sharp, Colorado Department of Public Health and Environment, f~a~Resource 7msree <br />Cherry Creek Drive South, Denver, CO 80246 <br />from: Byron G. Walker, EPS <br />subject: Review, April 2006 NPDES Discharge Monitoring Report (DMR), CDPS Permit <br />000032638 <br />date: May 31, 2006 <br />ref: WWC Engineering letter of May I5, 2006 to Colorado Division of Minerals and <br />Geology Re: Edna Mine, Apri12006 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 dischazges from DMP 004 and DMP 007 did not <br />exceed any compliance criteria. <br />Dischar e Point Discharge <br /> DMR Re ort Division Observations <br /> <br />004 yes (1.670 mgd average <br />2.240 m d maximum) not checked (snow) <br />007 yes (4.634 mgd average <br />6.262 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 / no) <br /> The eazlier 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)(iii) yes 19). Dates of sampling were not <br />to CDMG provided. The DMRs were received at <br /> the Division on May 19, 2006, under a <br /> WWC letter dated Ma l5, 2006. <br />Review, Anr 206 DMRDMR, CDPS Permit 0000t26'iR,~na~lae 1 oft pggec <br />Office of Office of Colorado <br />Mined land Reclamation Active and inactive Mines Geological Survey <br />