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PERMITTEE NAME /ADDRESS (Include Facility NamelLocahonifDifferent) NAME: Oxbow Mining LLC ADDRESS: PO Box 535 Somerset, CO 81434 -0535 FACILITY: SANBORN CRK & ELK CRK MINES LOCATION: 3737 HIGHWAY 133 SOMERSET, CO 81434 ATTN. Mike Ludlow Exec VP NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) 000000132 009 -A PERMIT NUMBER I F:n:I;CHARGE N BER MONITORING PERIOD MM /DD/YYYY MM /DD/YYYY 12/01/2014 12/31/2014 Form Approved OMB No. 2040 -0004 DMR Mailing ZIP CODE: 81424 -0535 MINOR GUNIS SURF RUNOFF TO N FK GUNIS RIVR External Outfail No Discharge NAMEI ITLE PRINCIPAL EXECUTIVE OFFICER 1 xndy under penalty of lawthat this document and all attachments Mere prepared under my direction or TELEPHONE DATE supemrsion in accordance Mtth a system designed to assure that qualified personnel properly gather and 1 lusts the mformatron submitted Based on my inquiry of the person or persons who manage the / t (^ Q yV system or those persons directly responsible for gathering the information, the information submitted is, " r — l to the best of my knoviledge and belief, true, accurate, and complete I am aware that there are r� 6 tP(st)h` sgnificampenaltiesforsubmittingfalseinformationincludingthepossibilityoffineandimpnsonmemto SIGNATURE OF RINCIPALEXECUTIVEOFFICEROR (�� 9- .7av�+ TYPED OR PRINTED n, M g wolahons AUTHORIZED AGENT AREA Code NUMBER MM/DDlYYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) 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 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. IF HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/17/2013 Page 1 QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS pH SAMPLE *..... ...... ...... ..... MEASUREMENT 004001 0 PERMIT * * *' "' *** * *' * * * * *• 6.5 "•• *•* 9 SU Monthly INSITU Effluent Gross REQUIREMENT MINIMUM MAXIMUM Solids, total suspended SAMPLE *• * "• • «` *•• • «• «• • "'•'• MEASUREMENT 0053010 PERMIT * "' ** * « ***` *•'•** '** "• 35 70 mg /L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, settleable SAMPLE *'•*•• * * * *'* •`•'«• ***•'* MEASUREMENT 005451 0 Effluent Gross PERMIT REQUIREMENT " " * * "* ' *' **` ***•" "" *'* Req. Mon. 30DA AVG Req. Mon. DAILY MX mUL Monthly GRAB Iron, total [as Fe] SAMPLE •• **`• " " « «* •' "..* ""••* MEASUREMENT 0104510 PERMIT * * * * *' • "• *• *«' * ** •"•" 3500 7000 ug /L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Oil and grease SAMPLE * « * * ** * * *••` •• *`•* *• * *•• ` «.. ** MEASUREMENT 0358210 PERMIT " *`• *« * * * * *• * * * * *" * *' "•* *••*•* 10 mg /L Contingent GRAB Effluent Gross REQUIREMENT INST MAX Flow, in conduit or thru treatment plat SAMPLE * * ***• ' * *'•* • * * * ** •`•• *` MEASUREMENT 500501 0 PERMIT Req. Mon. Req. Mon. MGD *"•" * " * * ** * * * *`* • " "' Monthly INSTAN Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, total dissolved SAMPLE * * * * ** "` *`• * * * * ** *• *••• MEASUREMENT 702951 0 PERMIT * "`•* * * * * ** ` * * * ** " "" Req. Mon. Req. Mon. mg /L Quarterly GRAB Effluent Gross REQUIREMENTT 30DA AVG DAILY MX NAMEI ITLE PRINCIPAL EXECUTIVE OFFICER 1 xndy under penalty of lawthat this document and all attachments Mere prepared under my direction or TELEPHONE DATE supemrsion in accordance Mtth a system designed to assure that qualified personnel properly gather and 1 lusts the mformatron submitted Based on my inquiry of the person or persons who manage the / t (^ Q yV system or those persons directly responsible for gathering the information, the information submitted is, " r — l to the best of my knoviledge and belief, true, accurate, and complete I am aware that there are r� 6 tP(st)h` sgnificampenaltiesforsubmittingfalseinformationincludingthepossibilityoffineandimpnsonmemto SIGNATURE OF RINCIPALEXECUTIVEOFFICEROR (�� 9- .7av�+ TYPED OR PRINTED n, M g wolahons AUTHORIZED AGENT AREA Code NUMBER MM/DDlYYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) 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 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. IF HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/17/2013 Page 1