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PERMITTEE NAME/ADDRESS (include FacilityName/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: Mike Ludlow Exec VP <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />C00000132 019 -A <br />PER ITNUMBER DISCHARGENUMBER <br />MONITORING PERIOD <br />MM/DDIYYYY MM/DD/YYYY <br />02/01/2015 02/28/2015 <br />Form Approved <br />I' <br />OMB No. 2040 -0004 <br />DMR Mailing ZIP CODE: 81424 -0535 <br />MINOR <br />GUNIS <br />SURFACE RUNOFF TO HUBBARD CRK <br />External Outfall <br />No Discharge( —r <br />NAMEITITLE PRINCIPAL EXECUTIVE OFFICER IceN bunderpenalty oflawt hatMbdocumentandallattachmentswepreparedundermydirectionor TELEPHONE DATE <br />supervision in accordance with a system designed to assure that qua Pied personnel properly gather and // //�• /, /} <br />Mate the Information submitted. eased on my Inquiry of the person or persons who manage the <br />system, or =a persons dkecty responsible for gathering the Information, the Information submitted Is, <br />�� to the best of my know4dge and belief, true, accurate, and complete. I am aware that there ere 9 S� 0 d f <br />Pr slgniArant penalties for submitting fahe information, including the poselbliity of Me and knprarnment for IGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />TYPED OR PRINTED RnoWng AUTHORIZED AGENT AREACOda r NUMBER MMIDDPrM <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />TSS 8r TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR <= 10,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR.24HR EVENT -SEE <br />I.A.1,PP 4-5, AND I.A.2, P 5 FOR RQMNTS.TDS MONITORING -SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING REPORTING PERIOD. <br />EPA Form 3320 -1 (Rev.01106) 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 />OFANALYSIS <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 />004001 0 <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 />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 />MX 7D AV <br />Solids, settleable <br />SAMPLE <br />**«*«' <br />«*«*"* <br />--- <br />--- <br />MEASUREMENT <br />005451 0 <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 />**'*`• <br />«"***« <br />"`" *« <br />' " * *"" <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 />500501 0 <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 />MEASUREMENT <br />8406610 <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 />NAMEITITLE PRINCIPAL EXECUTIVE OFFICER IceN bunderpenalty oflawt hatMbdocumentandallattachmentswepreparedundermydirectionor TELEPHONE DATE <br />supervision in accordance with a system designed to assure that qua Pied personnel properly gather and // //�• /, /} <br />Mate the Information submitted. eased on my Inquiry of the person or persons who manage the <br />system, or =a persons dkecty responsible for gathering the Information, the Information submitted Is, <br />�� to the best of my know4dge and belief, true, accurate, and complete. I am aware that there ere 9 S� 0 d f <br />Pr slgniArant penalties for submitting fahe information, including the poselbliity of Me and knprarnment for IGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />TYPED OR PRINTED RnoWng AUTHORIZED AGENT AREACOda r NUMBER MMIDDPrM <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />TSS 8r TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR <= 10,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR.24HR EVENT -SEE <br />I.A.1,PP 4-5, AND I.A.2, P 5 FOR RQMNTS.TDS MONITORING -SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING REPORTING PERIOD. <br />EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/17/2013 Page 1 <br />