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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 009-A I F- 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 />SEC 16 POND TO GOOD SPRING CR <br />External Outfall <br />No Discharge <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 /> 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 />035821 0 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 />70295 1 0 PERMIT Req. Mon. Req. Mon. mg/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Quarterly <br />I <br /> <br />GRAB <br />NAME/TITLE PRINCIPAL EXECUTNE OFFICER Iccrgyunder penalty of law that this document and all attachments were prepared under my direction or <br /> <br />supervi i accordance with a system designed to assure that qualified personnel properly gather and <br />TELEPHONE <br />DATE <br /> <br /> <br />t <br />? valuate the information submitted. Based on my inquiry oftheprson or persons who manage the <br />system, or those persons directly responsible for gathering the information, the information submitted is, <br />to the best fray knowledge and belief, true, accurate, and complete. I am aware that there are significant <br />cjy <br />??7`7l <br />570 aG <br />y'.? <br />/?/,7J///?(p/?(J <br />17N) <br />? 'Q?t <br />'* r? W ?'ef. penalties f submitting false information, including the possibility offine and imprisonment for knowing <br />vilnnna <br />SIGNATURE OF PRI L EXECUTIVE OFFICER OR v " " e ` <br />TYPED OR PRINTED . ORIZED AGENT AREA Code NUMBER MMIDD/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 -1.6.1.6, PG. 5. QRTRLY SAMPLING INSTRUCTIONS - I.C.11, PG. 5. <br />EPA Form 3320.1 (Rev.01106) Previous editions may be used. Page 1