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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />Form Approved <br />OMB No. 2040-0004 <br />PERM ITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Colowyo Coal Company LP <br />ADDRESS: 5731 State Highway 13 <br />Meeker, CO 81641 <br />000045161 007-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />DMR Mailing ZIP CODE: 81641 <br />MINOR <br />FACILITY: COLOWYO MINE <br />LOCATION: 5731 SOUTH HIGHWAY 13 <br />MEEKER, CO 81641 <br />ATTN: KEITH HALEY, MINE MANAGER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 07/01/2010 TO 09/30/2010 <br />(SUBR JC) MOFAT <br />PROSPECT SED PD/GOOD SPRING CR <br />External Outfall <br />No Dischar7? <br /> <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. <br />EX FREQUENCY <br />OF ANALYSIS SAMPLE <br />TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE ...... ...,., ...... <br />,. <br />.... <br /> MEASUREMENT <br />0040010 PERMIT .,•"' 6.5 ****** 9 SU <br />Effluent Gross REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE .,,,., ,,,,.. ...... „.... <br /> MEASUREMENT <br />005301 0 PERMIT 35 70 mg/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />005451 0 PERMIT Req. Mon. Req. Mon. mUL <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Iron, total recoverable SAMPLE <br /> MEASUREMENT <br />009801 0 PERMIT 1 Req. Mon. mg/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 PERMIT 10 mg/L <br />Effluent Gross REQUIREMENT INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE ..,,,, <br /> MEASUREMENT <br />500501 0 PERMIT Req. Mon. Req. Mon. Mgal/d <br />Effluent Gross REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Monthly <br />INSTAN <br />Solids, total dissolved SAMPLE ...... ...... <br /> MEASUREMENT <br />702951 0 PERMIT Req. Mon. Req. Mon. mg/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Quarterly GRAB <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER Iccnrvfyundcrpenalty of low that this document and all attachments were prepared under my direction <br />or <br />upe ston in accordance with a system designed to assure that qualified personnel F perly gather aad <br />TELEPHONE <br />DATE <br /> <br />? evaluate the information submitted. Based on my inquiry of the person or persons who manage the <br />t <br />m <br />r th <br />n <br />dir <br />tl <br />r <br />ibl <br />f <br />th <br />i <br />th <br />i <br />f <br />ti <br />th <br />i <br />f <br />ti <br />itt <br />d <br />b <br />??L , o <br />y <br />espons <br />sys <br />e <br />ose perso <br />s <br />ec <br />e <br />orga <br />er <br />ng <br />e <br />n <br />orma <br />on, <br />e <br />n <br />orma <br />on su <br />m <br />e <br />an <br />to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are sign'ficant <br />`1 7 <br />/y L C volattions.orsubmiuingfalseinfomaon,includiagthepossibiliyoffNeandimprisovmentforknowng IGNATUREOFP IPALEXECUTIVEOFFICERUK <br />TYPED OR PRINTED ,AUTHORIZED AGENT AREA Code NUMBER MM/DD/YYYY <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />SETTLEABLE SOLIDS LIMIT APPLIES ONLY IF <=10YR,24HR PRECIP EVENT IS CLAIMED. IF CLAIM APPROVED BY WQCD,TSS & IRON LIMITS WILL NOT BE APPLIED TO REPORTED MEASUREMENTS -SEE I.A.2, PG. <br /> 3 FOR <br />BURDEN OF PROOFREQUIREMENTS. OIL & GREASE -1.8.1.13, PG. 5. QRTRLY SAMPLING INSTRUCTIONS - I.C.11, PG. 5. <br />EPA Form 3320.1 (Rev.01106) Previous editions may be used. Page 1