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PERMITTEE NAME/ADDRESS ( includeFacrblyNameiLocabonlfD rHerent) 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 (NPOES) DISCHARGE MONITORING REPORT (DMR) C00000132 007 -A PERMIT U NU MBER MONITORING PERIOD MWDD/YYYY MM/DD/YYYY 1/01/2014 01/31 /2014 Form Approved OMB No 2040 -0004 DMR Mailing ZIP CODE: 81424 -0535 MINOR GUNIS SEDIMENT POND TO HUBBARD CREEK External Outfall No Discharge NAME) TITLE PRINCIPAL EXECUTIVE OFFICER 1 ce tity under penalty of taw that this document and all attachments were prepared under my direction or TELEPHONE DATE s luami , m accordance bli a system d on , , to ,score that person . tl persons personnel property gather a d / 1 O valuate the nfonnatwn submitted Based on my inquiry of tee person or persons who manage the ( A. ...n �1 system or those persons directly responsible for gathering the information, the infonmation submated r5 V ` I- to the best of my knovAedge and belief true aaurate and compete I am aware that there are Q Q p^ Q1j) C6 h� sgnihcant penalties for submitting fake information including the possibility of me and imprisonment r IGNATURE OF P NCIPAL EXECUTIVE OFFICER OR I �%� /�% TYPED OR PRINTED novug violation` AUTHORIZED AGENT AREA Corti I NUMBER MMIDD/VYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS St 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 EVENT -SEE I.A.1,PP 4 -5, AND I.A.2, P. 5 FOR ROMNTS.TDS MONITORING -SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.011061 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 •• « «• g 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 PERMIT ••«'• * "•" • "«' • ~~' Req. Mon. Req. Mon. mL/L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX 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 Effluent Gross PERMIT REQUIREMENT "•'•• ••• «• '•' ~• ' ~ «• ««•« 10 mg /L Contingent GRAB INST MAX Flow, in conduit or thru treatment pia it SAMPLE MEASUREMENT 500501 0 PERMIT Req. Mon. Req. Mon. MGD • " "' •'«'•' "•'~ ~ «'• Month ry INSTAN Effluent Gross REQUIREMENT 30DA AVG DAILY MX Oil and grease visual SAMPLE MEASUREMENT 840661 0 PERMIT " " "' Req. Mon. Y =1;N =0 ' ~ "" ~' "~ «' ~•' ' ~"' Monthly VISUAL Effluent Gross REQUIREMENT INST MAX NAME) TITLE PRINCIPAL EXECUTIVE OFFICER 1 ce tity under penalty of taw that this document and all attachments were prepared under my direction or TELEPHONE DATE s luami , m accordance bli a system d on , , to ,score that person . tl persons personnel property gather a d / 1 O valuate the nfonnatwn submitted Based on my inquiry of tee person or persons who manage the ( A. ...n �1 system or those persons directly responsible for gathering the information, the infonmation submated r5 V ` I- to the best of my knovAedge and belief true aaurate and compete I am aware that there are Q Q p^ Q1j) C6 h� sgnihcant penalties for submitting fake information including the possibility of me and imprisonment r IGNATURE OF P NCIPAL EXECUTIVE OFFICER OR I �%� /�% TYPED OR PRINTED novug violation` AUTHORIZED AGENT AREA Corti I NUMBER MMIDD/VYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS St 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 EVENT -SEE I.A.1,PP 4 -5, AND I.A.2, P. 5 FOR ROMNTS.TDS MONITORING -SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.011061 Previous editions may be used. 10/17/2013 Page 1