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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 1&2 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) 000027154 006-A P IT M ;R::],, [—D CH G M MONITORING PERIOD MM/DD/YYYY MM/DD/YYYY 04/01/201(o 1 1 04/30/201 Form Approved OMB No 2040-0004 DMR Mailing ZIP CODE: 80467 MAJOR (SUER JC) ROUTT MINE 1, POND E TO FOIDEL CREEK External Outfall No Discharge NAMEITiTLE PRINCIPAL EXECUTIVE OFFICER I centfy under peoagy of law rnthat this document and all atnchmanls were prepared under my dbacbon - supes,an n accordance wish a system designed to assure that qualified pem.—W properly gather and valuate the information submitted Based on my mqury of the person m persons who manage the system a those persons directly responsible for gathering the information, the information submitted is e I am re that there are to e best cl my knowAaccurate, odge and belief true, ate, aril comptelawa the slgn,fi—( pena tM. for submitting false Milormebon mrludmg the posshbedyof fine and hmpnsonment for ung rwteuans QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR AUTHORIZED AGENT EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS pHSAMPLE MEASUREMENT ...... ...... ...... ...... % ` t 7 0040010 PERMIT ""'• "•"' •'•••• 65 •"'•• 9 SU Weekly GRAB Effluent Gross REQUIREMENT MINIMUM MAXIMUM Solids, total suspended SAMPLE MEASUREMENT '••••• ••••• '-••"• •••••• �. -'r JGRAB 0053010 PERMIT •'•'•' ""'• "•••• '••"• 35 70 mg/L Weekly Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, total suspended SAMPLE MEASUREMENT •••••• ••••*• ••'••' '••••• /�lr� /1j'4- /V L4 h /Cl 4 0053000 PERMIT ••"'• '••"' '•"'• '••'•• Req. Mon. Req. Mon. mg/L Weekly GRAB See Comments REQUIREMENT 30DA AVG DAILY MX Solids, settleable SAMPLE MEASUREMENT •••••• •••••• ••••.. •••... , / L'G , / C t/% / 005451 0 PERMIT "•"" ••"'• "•"•• ••••" Req. Mon. .5 mL/L Weekly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, settleable SAMPLE MEASUREMENT •••••• ••••.. •••••• •••••• n Al 4— &A fVjp N 4 0054500 PERMIT •'•••` "•`•" '••••' '•"•. Req. Mon, Req. Mon. mL/L Weekly GRAB See Comments REQUIREMENT 30DA AVG DAILY MX Iron, total [as Fe] SAMPLE MEASUREMENT •••••• •••••• •••••• •••••• 2.51 ?s C? C (/7 J ctL) 0104510 PERMIT •"'•'• ""'• •"'•" •""• 3500 7000 ug/L Weekly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Iron, total [as Fe] SAMPLE MEASUREMENT ...,.. ...... ...... ...... 0104500 PERMIT •'••"' "`•' '•"" """ Req. Mon. Req. Mon. ug/L Weekly GRAB See Comments REQUIREMENT 30DA AVG DAILY MX NAMEITiTLE PRINCIPAL EXECUTIVE OFFICER I centfy under peoagy of law rnthat this document and all atnchmanls were prepared under my dbacbon - supes,an n accordance wish a system designed to assure that qualified pem.—W properly gather and valuate the information submitted Based on my mqury of the person m persons who manage the system a those persons directly responsible for gathering the information, the information submitted is e I am re that there are to e best cl my knowAaccurate, odge and belief true, ate, aril comptelawa the slgn,fi—( pena tM. for submitting false Milormebon mrludmg the posshbedyof fine and hmpnsonment for ung rwteuans ✓l� G �J TELEPHONE DATE (/V'i -t* ` rSC n SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR AUTHORIZED AGENT TYPED OR PRINTED AREA cod• NUMBER MMIDD/YYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) ALTERNATE LIMITS FOR TSS (MLOC=O) APPLY IF 10YR/24HR PRECIP EVENT CLAIMED. ALTERNATE LIMITS FOR IRON &SETTLEABLE SOLIDS (MLOC=O) APPLY ONLY IF <=10YR,24HR PRECIP EVENT CLAIMED. OIL & GREASE - SEE LC 19,PAGE 16. EPA Form 3320-1 (Rev.01106) Previous editions may be used. 08/26/2013 Page 1