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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved ' <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERMITTEENAMEIADDRESS (Include Facility NamelLocation if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81434-0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br /> SOMERSET, CO 81434 <br />ATTN: James T. Cooper, EVP <br />I 000000132 017-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 01/01/2011 TO 01/31/2011 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURF RUNOFF TO N. FK GUNIS RIV <br />External Outiall o <br />No Discharg-- <br /> <br />PARAMETER QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE <br /> EX OF ANALYSIS TYPE <br /> <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT <br />004001 <br />0 <br />Effluent Gross PERMIT ""» » "•"" 6.5 "'•" 9 SU <br /> REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br />""" <br /> MEASUREMENT „'»' '•'»' <br />0053010 ""» »»" <br />Effluent Gross PERMIT "••" '•'••• 35 70 m <br /> REQUIREMENT 30D AVG DAILY MX g Monthly GRAB <br />Solids, settleable SAMPLE •„„, <br /> MEASUREMENT <br />00545 <br />1 0 <br />Effluent Gross PERMIT "`•'" " " """ •"" Req. Mon. Req. Mon. mUL <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE ,., „„ <br /> <br />MEASUREMENT „ <br />""' <br />010451 <br />0 <br />Effluent Gross PERMIT """` """ •»••• <br />D <br />A <br />L <br /> REQUIREMENT 30 <br />A <br />VG DAI <br />Y MX Monthly GRAB <br />Oil and grease SAMPLE , „,• <br /> MEASUREMENT <br />03582 <br />10 <br />Effluent Gross PERMIT """ ""•' •••••• •• <br />•„• <br />L <br /> REQUIREMENT INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT `»" »"" `•"'• •""` <br />5 <br />0050 1 0 <br />Effluent Gross PERMIT <br />REQUIREMENT Req. Mon. <br />30DA AVG Req. Mon. <br />DAILY MX Mgalld „.... „-„• •»•» <br />• <br /> Monthly INSTAN <br />Oil and grease visual SAMPLE <br /> MEASUREMENT '»"' '»"` '•"'• •••••' <br />84066 <br />1 0 <br />Effluent Gross PERMIT Req. Mon. Y=1:N=0 '»„' •*•*•- •--» ...... <br /> REQUIREMENT INST MAX Monthly <br />VISUAL <br />n Mhf ITLE PRl IPA EXECUTIVE OFFICER I "p-Iryor ° ma, MISOaCnen1 dale-tumtms-prep dundxnydirimw DATE <br />'I-'6i- is -td- with a Sys etn designed m a.,me thw qualified pc >omm r g• a d TELEPHONE <br />wluara the infumuciw mbmined U..d n. my inquiry.f the person ur persons who mango the r./ <br />' ryuem. or thwc person du«tly -poocib4 fw gadwmg the mfotmau- the mfomorion mbm n d iw <br />• m dx bea of my n nwledge and bebef uue. ?.?. wad wmple a .w.m wat hae a e aignffl- /. t7a 4 Z 4 -5 iz z- o t /0 3111 <br />penagiear«mbminmgfalseinfomuion ncludngthepussibdiryoff and mp aonmemformuwag iulanom SIGNA EOFPRINCIPALEXECUTI OFFICER OR <br />. <br />TYPED OR PRINTED AUTHORIZED AGENT AREA Code NUMBER MWDDIYYYY <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIES FOR <=10YR,24HR PRECIP EVENT; SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVERT-SEE IA.1,PP 4-5, AND <br /> IA.2., P 5 <br />FOR RQMNTS. TDS MONITORING - SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG. DURING PERIOD RPTD <br />EPA Form 3320-1 (Rev.01106) Previous editions may be used. <br />Page 1