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PERMITTEE NAME/ADDRESS (Include Facility Name /LocationifDifferent) <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: Mike Ludlow Exec VP <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />C00000132 I 013 -A <br />PERMIT NUMBER I DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM /DD/YYYY MM /DD/YYYY <br />04/01/2015 04/30/2015 <br />Form Approved <br />OMB No. 2040 -0004 <br />DMR Mailing ZIP CODE: 81424 -0535 <br />MINOR <br />GUNIS <br />RUNOFF TO N FORK GUNNISON R. <br />External Outfall <br />No Discharge <br />NAME /TITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments vvere pre pared under my direction or TELEPHONE DATE <br />supervision in accordance win a system desgned to assure that qualified personnel property gather arN A � ` <br />'/— 0 valuate the mformabon submitted. Based on my inquiry of the person or persons who manage the all r <br />� _? system, or those' <br />hose persons directly responsible for gathering the mfofmatron, the mformatron submdted s. `�f r l ' �� I Q S � /- <br />to me best of my knowledge and belief. true. accurate, and complete. I am aveare that there are i' J Y0 <br />t e.5(4vc�- sgnificantpenaltesfor submdbng false Information. including the possibility of fine and Imprisonment for IGNATUREOF PRINCIPAL EXECUTIVE OFFICER OR 05d`t �� <br />"O"'n9vi l lions• AUTHORIZED AGENT <br />TYPED OR PRINTED AREaCOde NUMBER MM/DDffM <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 ­1 PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR <br />EVENT -SEE I.A.1,PP 4 -5, AND I.A.2, P. 5 FOR RQMNTS.TDS MONITORING -SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. <br />EPA Form 3320 -1 (Rev.01 106) Previous editions may be used. 10/17/2013 Page 1 <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />NO. <br />FREQUENCY <br />SAMPLE <br />PARAMETER' <br />EX <br />OF ANALYSIS <br />TYPE <br />VALUE <br />VALUE <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />UNITS <br />pH <br />SAMPLE <br />...... <br />...... <br />..*... <br />...... <br />MEASUREMENT <br />0040010 <br />PERMIT <br />• "* "' <br />• * * * *' <br />*` * * "" <br />6.5 <br />** " ` <br />9 <br />SU <br />Monthly <br />INSITU <br />Effluent Gross <br />REQUIREMENT <br />MINIMUM <br />MAXIMUM <br />Solids, total suspended <br />SAMPLE <br />*'• * ** <br />" *•""• <br />* * ***• <br />* * * *`* <br />MEASUREMENT <br />0053010 <br />PERMIT <br />****** <br />***`** <br />***••` <br />*•**" <br />35 <br />70 <br />mg /L <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Solids, settleable <br />SAMPLE <br />"«* * *" <br />* *•*** <br />*** * ** <br />`*«*** <br />MEASUREMENT <br />0054510 <br />PERMIT <br />•* * *•" <br />****** <br />****`* <br />*•*•*• <br />Req. Mon. <br />Req. Mon. <br />mUL <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Iron, total [as Fe] <br />SAMPLE <br />MEASUREMENT <br />0104510 <br />PERMIT <br />*••*•• <br />***«** <br />****** <br />`*'**" <br />3000 <br />6000 <br />ug /L <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Oil and grease <br />SAMPLE <br />*• *• *• <br />*** «.. <br />.....« <br />. :.... <br />...... <br />MEASUREMENT <br />0358210 <br />PERMIT <br />**• **" <br />*• "• *• <br />•**••* <br />*•* * ** <br />*"**"" <br />10 <br />mg /L <br />Contingent <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />INST MAX <br />Flow, in conduit or thru treatment plat <br />SAMPLE <br />*• "••* <br />*' * *** <br />* * « * ** <br />* * "' ** <br />MEASUREMENT <br />5005010 <br />PERMIT <br />Req. Mon. <br />Req. Mon. <br />MGD <br />" * "* <br />"""*"" <br />"""*"* <br />`"**** <br />Monthly <br />INSTAN <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Oil and grease visual <br />SAMPLE <br />• * « « "• <br />*....' <br />*..• ** <br />*•..•* <br />*•`..• <br />MEASUREMENT <br />840661 0 <br />PERMIT <br />**** ** <br />Req. Mon. <br />Y =1;N =0 <br />* * *• ** <br />* *"* ** <br />• **" <br />* * *••• <br />Monthly <br />VISUAL <br />Effluent Gross <br />REQUIREMENT <br />INST MAX <br />NAME /TITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments vvere pre pared under my direction or TELEPHONE DATE <br />supervision in accordance win a system desgned to assure that qualified personnel property gather arN A � ` <br />'/— 0 valuate the mformabon submitted. Based on my inquiry of the person or persons who manage the all r <br />� _? system, or those' <br />hose persons directly responsible for gathering the mfofmatron, the mformatron submdted s. `�f r l ' �� I Q S � /- <br />to me best of my knowledge and belief. true. accurate, and complete. I am aveare that there are i' J Y0 <br />t e.5(4vc�- sgnificantpenaltesfor submdbng false Information. including the possibility of fine and Imprisonment for IGNATUREOF PRINCIPAL EXECUTIVE OFFICER OR 05d`t �� <br />"O"'n9vi l lions• AUTHORIZED AGENT <br />TYPED OR PRINTED AREaCOde NUMBER MM/DDffM <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 ­1 PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR <br />EVENT -SEE I.A.1,PP 4 -5, AND I.A.2, P. 5 FOR RQMNTS.TDS MONITORING -SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. <br />EPA Form 3320 -1 (Rev.01 106) Previous editions may be used. 10/17/2013 Page 1 <br />