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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 008-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 01/01/2011 TO 03/31/2011 <br />(SUBR JC) MOFAT <br />WEST PIT SED POND TO TAYLOR CR <br />External Outfall <br />No Discharge FREQUENCY PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION X• OF ANALYSIS SAMPLE <br /> TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE ...... ...... .*..". ...... <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 />0053010 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 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 30DA AVG DAILY MX Monthly INSTAN <br />Solids, total dissolved SAMPLE <br /> MEASUREMENT <br /> <br />702951 0 <br /> <br />PERMIT <br /> <br />*..*** <br />Req. Mon. Mon, <br /> <br />L <br /> <br />mg/L <br />Effluent Gross <br />REQUIREMENT 30DA AVG DA <br />Y MX <br />I <br />I Quarterly <br />I GRAB <br />i NAME/TITLE PRINCIPAL EXECUTIVE OFFICER Icenifyrmderpennityoflmvthat this document and al IIthichruntswere prepared tinder my direction or <br /> <br />supervision in accordance with a system designed to assure that qualified personnel properly gather and TELEPHONE DATE <br /> <br />! <br />/.tea ? V ?r?/v 'O? J'? ? <br />?/ • IIjV>. rj evaluate the information submitted. Based on my inquiry of the person or persons who monage the <br />system, or those persons directly responsible for gathering the information, the information submitted is, <br />to the best crony knowledge and belief, (me, accurate, and complete. I am aware that there are significant <br />/? <br />? ?V <br />? <br />Y penalties for submitting false information, including the possibility of fine and imprisonment for knowing <br /> <br />TYPED OR PRINTED violations. SIGNATURE OF PRI EXECUTIVE OFFICER OR <br />A RIZED AGENT <br />AREA Code <br />NUMBER <br />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- I.B.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