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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 003-A RMIT B R WtAffIGENUMBER MONITORING PERIOD _ MM/DD/YYYY MM/DD/YYYY 04/01/201& 04/30/201 Form Approved OMB No. 2040-0004 DMR Mailing ZIP CODE: 80467 MAJOR (SUBR JC) ROUTT MINE 1, POND B TO FOIDEL CREEK External Outfall No Discharge ED NAME/TITLE PRINCIPAL EXECUTIVE OFFICER 1 ceruty under penalty al law that tus if p onl and ON attachments wore prepared oder my direction or supervun in accordance Mitt a system designed to assure that quatdied personnel pperty gather and a aluste the mlormallm submitted Based on my ingWry at the person or parsons who romenage the system a those persons directly responsible for gathemg the mformaticn, the mlorm~ submitted rs o the best of my knowMdga and begot We, accurate and complete 1 am owere that there are s,gnificampanoldeslorsubmittngfahemfommti— Incldngtheposshaldyarrnaadrnpnsonmentfor ki—ortg�aeuuns 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 ...... ...... ...... F, I ...... 0040010 PERMIT "`•'• "•"" """' 6.5 """ 9 SU Weekly CIO GRAB Effluent Gross REQUIREMENT MINIMUM MAXIMUM Solids, total suspended SAMPLE MEASUREMENT •••'•' •••••• "••" -•••-' J ( I •� / y� 1 PERMIT •"•" •*'••• "'••• '•"" 35 70 mg/L Weekly GRAB 0053010 Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, total suspended SAMPLE MEASUREMENT "••"' """ """ ""•'• J(/ /V 1411- 0053000 00530O0 PERMIT •"'•• •••`•` '•.... "'••' Req. Mon. Req. Mon. mg/L Weekly GRAB See Comments REQUIREMENT 300A AVG DAILY MX Solids, settleable SAMPLE MEASUREMENT '"•' ... ""'• "'••• C (, ( 6 I/7 ✓C, 005451 0 PERMIT •••"' ""'•• •`•••' """ Req. Mon. .5 mUL Weekly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, settleable SAMPLE MEASUREMENT •..... "•'^ ""'• "'•" IV 4 Q(/ : N /V/,- 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 •""^ •..... """' '••"' /o 3c Z O /^-7 ✓C7 % 0104510 PERMIT •••'•' •'•"" """ """ 3500 7000 ug/L Weekly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Iron, total [as Fe] SAMPLE MEASUREMENT •..... •""' "•"• '•"" /V Ai J� I —T ti4 /� 0104500 PERMIT •••`"' •"'•' """' ""'• Req. Mon. FReq. Mon. ug/L Weekly GRAB See Comments REQUIREMENT 30DA AVG DAILY MX NAME/TITLE PRINCIPAL EXECUTIVE OFFICER 1 ceruty under penalty al law that tus if p onl and ON attachments wore prepared oder my direction or supervun in accordance Mitt a system designed to assure that quatdied personnel pperty gather and a aluste the mlormallm submitted Based on my ingWry at the person or parsons who romenage the system a those persons directly responsible for gathemg the mformaticn, the mlorm~ submitted rs o the best of my knowMdga and begot We, accurate and complete 1 am owere that there are s,gnificampanoldeslorsubmittngfahemfommti— Incldngtheposshaldyarrnaadrnpnsonmentfor ki—ortg�aeuuns _�_� /J f�•/ TELEPHONE DATE ? • f` i✓ 61 (on a 'rs0,-� L, (%d %(/ Z7�1 SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR AUTHORIZED AGENT TYPED OR PRINTED AREA Code I NUMBER MM/DDIYYYY 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 8 GREASE - SEE I.C.19,PAGE 16. EPA Form 3320-1 (Rev.01/06) Previous editions may be used. 08/26/2013 Page w