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PERMITTEE 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. Mike Ludlow Exec VP <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />000000132 019 -A <br />MI NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM /DD/YYYY MM /DD/YYYY <br />01/01/2015 01/31/2015 <br />Form Approved <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 <br />NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments were prepared under my direction or TELEPHONE DATE <br />supervision in accordance with a system designed to assure that qualified personnel properly gather and <br />Q valuate the information submitted Based on my inquiry of the person or persons who manage the t <br />` �..� system or those persons directly responsible for gathering the information the information submitted is <br />to the best of my knowledge and belief true accurate and complete I am aware that there are <br />W65)14 sgmticant penalties for submitting false information mcludmg the possibtlity, of fine and imprisonment for IGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />TYPED OR PRINTED nowang violations AUTHORIZED AGENT AR -Cede <br />NUMBER (imirfortyyy <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 <= 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 VI.A.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING REPORTING PERIOD. <br />EPA Form 3320 -1 (Rev.01 /06) 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 />pHSAMPLE <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 />*` * * "` <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 />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 />mL/L <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 />MEASUREMENT <br />50050 1 0 <br />PERMIT <br />Req. Mon. <br />Req. Mon. <br />MGD <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 />NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments were prepared under my direction or TELEPHONE DATE <br />supervision in accordance with a system designed to assure that qualified personnel properly gather and <br />Q valuate the information submitted Based on my inquiry of the person or persons who manage the t <br />` �..� system or those persons directly responsible for gathering the information the information submitted is <br />to the best of my knowledge and belief true accurate and complete I am aware that there are <br />W65)14 sgmticant penalties for submitting false information mcludmg the possibtlity, of fine and imprisonment for IGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />TYPED OR PRINTED nowang violations AUTHORIZED AGENT AR -Cede <br />NUMBER (imirfortyyy <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 <= 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 VI.A.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING REPORTING PERIOD. <br />EPA Form 3320 -1 (Rev.01 /06) Previous editions may be used. 10/17/2013 Page 1 <br />