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PERMITTEE NAME/ADDRESS <br />NAME: MOUNTAIN COAL COMPANY, LLC <br />ADDRESS: WEST ELK MINE <br />5174 HIGHWAY 133 <br />SOMERSET CO 81434 <br />FACILITY: WEST ELK MINE <br />LOCATION: APPX 1 MI E OF TOWN ON HWY 133 <br />SOMERSET, CO 81434 <br />ATTN: WESTON J. NORRIS, GENERAL MANAGER <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />C00038776 004 W ACUTE WET TESTING FOR 004A <br />PERMIT NUMBER D15GHARGE NUM (SUBR MH) GUNIS <br />EXTERNAL OUTFALL <br />MONITORING PERIOD MINOR <br />FROM TO NO DISCHARGE QX <br />NOTE: Read instructions before completing this form. <br />PARAMETER <br />QUALITY OR LOADING <br />QUALITY OR CONCENTRATION <br />NO. <br />FREQUENCY <br />SAMPLE <br />>< <br />VALUE <br />VALUE <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />UNIT <br />OF <br />ANALYSIS <br />TYPE <br />LC50 STATRE 48HR ACU <br />DAPHNIA MAGNA <br />SAMPLE <br />MEASUREMENT <br />(23) <br />1/90 <br />GRAB <br />TAM3C 1 0 <br />EFFLUENT GROSS SEE COMMENTS <br />PERMIT <br />REQUIREMENT <br />SAMPLE <br />MEASUREMENT <br />PERCENT <br />QTRLY <br />GRAB <br />LC50 STATRE 96HR ACU <br />PIMEPHALES <br />(23) <br />1/90 <br />GRAB <br />RAB <br />TAN6C 10 <br />EFFLUENT GROSS SEE COMMENTS <br />REQS NT <br />SAMPLE <br />MEASUREMENT <br />PERCENT <br />Did effluent consist of surface <br />water only for the entire <br />MRMIr <br />quarter? <br />REQUIREMENT <br />NAME /TITLE PRINCIPAL EXECUTIVE OFFICER TELEPHONE <br />DATE <br />4/18/2019 <br />I CERTIFY UNDER PENALTY OF LAW THAT THIS DOCUMENT AND ALL ATTACHMENTS WERE PREPARED UNDER MY <br />DIRECTION OR SUPERVISION IN ACCORDANCE WITH A SYSTEM DESIGNED TO ASSURE THAT QUALIFIED PERSONNEL <br />PROPERLY GATHER AND EVALUATE THE INFORMATION SUBMITTED BASED ON MY INQUIRY OF THE PERSON OR <br />PERSONS WHO MANAGE THE SYSTEM, OR THOSE PERSONS DIRECTLY RESPONSIBLE FOR GATHERING THE <br />INFORMATION, THE INFORMATION SUBMITTED IS, TO THE BEST OF MY KNOWLEDGE AND BELIEF, TRUE, ACCURATE, <br />AND COMPLETE 1 AM AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, <br />Weston Norris INCLUDNGTHE POSSIBILITY OFFINE AND IMPRISONMENT FOR KNOWINGVIOLATIONS SIGNATURE OF PRINCIPAL 970-929-5015 <br />OFFICER OR AUTHORIZED AGENT <br />TYPED OR PRINTED <br />MM/DD/YYYY <br />COMMENT AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) romre Dy vvinnovx.;nem(fui)au*4 U47,a11T TuBu;VD u.in UU <br />SEE I.A.5, PP. 6-7, FOR DETAILS OF TEST PROCEDURE. REPORT LC50 - STATISTICAL POINT ESTIMATE WHICH IS LETHAL TO 50% OF THE TEST ORGANISMS, AND ATTACH ACUTE TOXICITY <br />TEST REPORT FORM TO DMR. <br />00017/980409-1716 PAGE 1 OF 1 <br />