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PERMITTEE NAME /ADDRESS (Include Facility Name /Location if Different) NAME: Twentymile Coal LLC ADDRESS: 29515 Routt CR 27 Oak Creek. CO 80467 FACILITY: MINES 18r2 AND ECKMAN PARK MINE LOCATION: 29515 RCR #27 OAK CREEK, CO 80467 ATTN: Patrick Sollars, GM NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) C00027154 007 -A PERMIT NUMBER DISCHARGE NUMBER MONITORING PERIOD MM /DD/YYYY MM /DD/YYYY 05/01/2014 05/31/2014 Form Approved OMB No. 2040 -0004 DMR Mailing ZIP CODE: 80467 MAJOR (SUBR JC) ROUTT MINE 1, POND F TO FOIDEL CREEK External Outfall No Discharge = NAME /TITLE PRINCIPAL EXECUTIVE OFFICER 1 certify under penalty of law that this document and all attachments were prepared under my direction or QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS pH SAMPLE MEASUREMENT v vGRAB 004001 0 PERMIT " * * *'" * * * * ** * *' *'* 6.5 * * * * ** 9 SU Twice Per Effluent Gross REQUIREMENT MINIMUM MAXIMUM Month Solids, total suspended SAMPLE MEASUREMENT " * " " *" < S "'S. a 0053010 PERMIT * * * * "* * * * * ** * * * * ** * * * * ** 35 70 mg /L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, total suspended SAMPLE MEASUREMENT • / /V+ N4 Nf} Avg-- /(/A 0053000 PERMIT ' * "'* * * * * ** * * * * ** * * * * ** Req. Mon. Req. Mon. mg /L Monthly GRAB See Comments REQUIREMENT 30DA AVG DAILY MX Iron, total recoverable SAMPLE MEASUREMENT �v 009801 0 PERMIT * * * * ** " " *' ' * *' ** * " *'* 1000 Req. Mon. ug /L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Flow, in conduit or thru treatment plat SAMPLE MEASUREMENT !j, 606 /L� 500501 0 Effluent Gross PERMIT REQUIREMENT 2.97 30DA AVG Req. Mon. DAILY MX MGD * * * * "* * * * * ** * * * * *" ' * * *'* l Eiaueus weGi 144G - (nS� n NAME /TITLE PRINCIPAL EXECUTIVE OFFICER 1 certify under penalty of law that this document and all attachments were prepared under my direction or TELEPHONE DATE supervision in accordance veth a system designed to assure that qualified personnel properly gather and valuate the Information submitted. Based on my inquiry of the person or persons who manage the system. or those persons directly responsible for gathering the information. the information submitted is to the best of my knowledge and belief, true, accurate. and complete. I am aware that there are - SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR significant penalties for submitting false information including the possibility of fine and Imprisonment for rowing violations. AUTHORIZED AGENT TYPED OR PRINTED ARFA CrMe NUMBER M /DD/YYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) ALTERNATE LIMITS FOR TSS & IRON (MLOC =O) APPLY IF 10YR,24HR PRECIP. EVENT CLAIMED. ALTERNATE LIMITS FORSETTLEABLE SOLIDS (MLOC =O) APPLY ONLY IF >10YR,24HR PRECIP EVENT CLAIMED. OIL & GREASE - SEE I.C.19,PAGE 16. EPA corm 3320 1 (RS, %,01'06) Pre'iious editions may be used. ^n I '.