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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />4 <br />t <br />PERM ITTEE NAME/ADDRESS (Include Facility Name/Location 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 />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURF RUNOFF TO N FK GUNIS RIVR <br />External Outfall <br />No Discharge <br /> <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION O ofEQ <br />UUENC SAMPLE <br /> EX N <br />IS TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> <br />MEASUREMENT --- <br />'•„» <br />'»"' <br />"'••• <br />0040010 <br /> <br />Effluent Gross PERMIT <br />•?„ 6.5 9 SU <br /> REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> <br />MEASUREMENT ,••, <br />•• <br />„"" <br />'»»` <br />""" <br />0053010 PERMIT "`»' •"'•• •*•••• _••••• <br />Effluent Gross REQUIREMENT 30DA AVG DAILY 70 <br />MX <br />mgt <br />Monthly <br />GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT „?•„ "»" '»»' ""» <br />0054510 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT <br />?„ <br />.„... <br />Req. Mon. <br />m? <br /> <br />Iron, total (as Fe) <br />SAMPLE 30D <br />AAVG DAILY MX Monthly GRAB <br /> MEASUREMENT •?_ »•"' » "" <br />0104510 <br /> PERMIT „ <br /> <br />Effluent Gross <br />REQUIREMENT 3500 <br />30DA AVG 7000 <br />DAILY MX ug/L <br />Monthl <br />GRAB <br />Oil and grease SAMPLE y <br /> MEASUREMENT "»" `»»' ""» " „• <br />0358210 """ •'»'• <br /> <br />Effluent Gross PERMIT <br /> <br />REQUIREMENT •••••• •»••_ .»... <br />10 <br />mg/L <br /> INST MAX Contin <br />ent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE g <br /> MEASUREMENT '»"` "'»• ••••» •»•» <br />50050 1 0 <br /> PERMIT Req. Mon. Req. Mon. M <br />aUd •••••• »••• <br />Effluent Gross REQUIR 30DA AVG DAILY MX g ••_•„ ...„• <br /> EMENT Monthl INSTAN <br />Oil and grease visual SAMPLE y <br /> MEASUREMENT •••••• ••..» <br />84066 1 0 <br /> PERMIT "»" Req. Mon Y=1;N=0 '••• <br />Effluent Gross . <br />INST <br /> REQUIREMENT MAX Monthly VISUAL <br /> <br />000000132 009-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD <br />/YYYY <br />FROM 05/01/2011 TO 05/31/2011 <br />N ME/TITLE PRl IP EXECUTIVE OFFICER =m-i. rpepahy fI-1har hudo<„m` and all' hmrn -prrwrmnnd. my di-fionw <br />d nw„rc „m, 7uwndnigneaNo, ir.d lhw eva ar,om,nlpmperlyplhR-d TELEPHONE DATE <br />?:- luate a- the infomuuion lyed. Based le uWUiry o of the perwn or persons why mavxge the <br />rystcrn w drone pmona di di-renly rcsom <br />pible for w gatl ti g the ivfomwdon. dre information submirtcd is, a - <br />i,G Er, ? /. ro the brn of my 4nawledgc rmd belief, o-ue, sccwwe. snd compkt<. 1:m await dw drcm .re significam / •? <br />?. " V rf' I ?n fw subminiog false infurm>tion, i=lwling the possibility of and imprisonmau for krwwing 0 p? -37 ! F Ob ?/ <br />TYPED OR PRINTED SIGNA E OF PRINCIPAL EXE TI OFFICER OR <br />AUTHORIZED AGENT NUMBER MM/DD/YYYY <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR <=10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR 24HR EVEN - <br />FOR RQMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE. 3 T S <br />0 DAY AVG. IF HIGHEST MONTHLY AVG EE I.A.1,PP 4.5, AND IA.2. P. 5 <br />- . DURING PERIOD REPRTD. <br />EPA Form 3320-1 (Rev.01/06) Previous editions may be used. <br />Pape 1