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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERMITTEE 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 />FACILITY: COLOWYO MINE <br />LOCATION: 5731 SOUTH HIGHWAY 13 <br />MEEKER, CO 81641 <br />ATTN: KEITH HALEY, MINE MANAGER <br />000045161 002-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 10/01/2010 TO 12/31/2010 <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81641 <br />MINOR <br />(SUBR JC) MOFAT <br />WORK AREA POND TO TAYLOR CREEK <br />External Outfall <br />No Discharge <br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION <br />NO. <br />E <br />X <br />EX <br /> <br />FREQUENCY <br />OF ANALYSIS <br /> <br />SAMPLE <br />TYPE <br />PARAMETER <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE ...... .....+ +.+..: <br /> MEASUREMENT <br />00400 1 0 PERMIT *'*"* ?**?*• ...... <br />MINI6.5 <br />MUM <br />*..... <br />9 <br />MAXIMUM <br /> <br />SU <br /> <br />Monthly <br /> <br />INSITU <br />Effluent Gross REQUIREMENT <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />005301 0 PERMIT """ •"•** «.««» «««,_« 30D35 DAILY 70 MX mg/L Monthly GRAB <br />Effluent Gross REQUIREMENT <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />00545 1 0 PERMIT Req. Mon. <br />30DA AVG Req. Mon. <br />DAILY MX mUL <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Iron, total recoverable SAMPLE <br /> MEASUREMENT <br />00980 1 0 PERMIT <br />30DA AVG Req. Mon. <br />DAILY MX mg/L <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 PERMIT 10 <br />INST MAX mg/L <br />Contingent <br />GRAB <br />Effluent Gross REQUIREMENT <br />Benzene, ethylbenzene, toluene, SAMPLE ...... ,.,... ++... ...... <br />xylene combination MEASUREMENT <br />30383 1 0 PERMIT Req. Mon. <br />AVERAGE 1 <br />INST MAX mg/L Once Per <br />Monthl <br />y <br />GRAB <br />Effluent Gross REQUIREMENT o <br />e <br />D <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br />50050 1 0 PERMIT <br />1 Req. Mon. <br /> <br />30DA AVG Req. Mon. <br /> <br />DAILY MX MgaVd <br /> <br />Monthly <br /> <br />INSTAN <br />Effluent Gross <br />REQUIREMENT <br /> <br />NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this docwneot and all mmchmems were prepared under my directi <br />supervtvo ,moordaneewithasyatemde,ogmAtea==,nethatq Wi6,dpersnnnelproperiygathe sod TELEPHONE DATE <br /> evaluate the m( anon submitted. Based on my mgaby of the person or persons who manage the <br />V <br />1 <br /> system, or those personsda1a tesPoruiblefor gathenng Ne information, the mfomsm submhrcd <br />and complete. 1 am aware thaz there are eig tificam <br />to the bat of my knowledge and bel,,f <br />we <br />acewa e <br />le? <br />_;01 <br />5' r7V A2" <br />/ ?Cl 7J ?i 01/0-7/20f <br />V vK•4•tp/1) , <br />, <br />, <br />penalties for submitting false infomution, ituluding the possibility of fine and imprisonment for knowing <br />olanons. <br />IGNATURE Ofr RINCIPAL EXECUTIVE OFFICER OR <br /> <br />c <br />TYPED OR PRINTED AUTHORIZED AGENT AftEn <br />ode 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 - I.B.1.13, PG. 5. BTEX MONITORING REQD ONLY IF WASHBAY DSCH TO WRK AREA POND <br />EPA Form 3320.1 (Rev.01106) Previous editions may be used. Page 1