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PERMITTEE NAME/ADDRESS ( lndude Facility Name ✓Locationif Different) 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 012 -A PERMIT NUMBER I 99—MBER MONITORING PERIOD MM/DDMW MM/DD/YYYY 01/01/2014 01/3112014 Form Approved OMB No. 2040 -0004 DMR Mailing ZIP CODE: 81424-0535 MINOR GUNIS SEDIMENT POND TO ELK CREEK External Outfall No Discharge NAMERITLE PRINCIPAL EXECUTIVE OFFICER 1 comfy under penalty of law that tfas document and a® attachments were prepared under my dseclon or supervwion m accordance wdh a system deagned to assure that quaNfied personnel lt nnel properly gather a aluam the nformaton subrm ted Based an my irquay of the person or persons who manage the system or those persons directly responsible for gathering the information, the mformabon sulxnRted a., to the best of my knowledge and belief true accurate and complete I am aware that there are sgmhcant penalties for submdbng fake informabon including the p—bddy of fine and impreonment for nowang —lations QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER AREACcom VALUE VALUE UNITS VALUE VALUE VALUE UNITS EX OF ANALYSIS TYPE pHSAMPLE »••» »• »' •• «» • » »+ MEASUREMENT 004001 0 Effluent Gross PERMIT REQUIREMENT ~•••• • +• «+ • « +•` 6.5 MINIMUM •••• +• g MAXIMUM SU Monthly INSITU Solids, total suspended SAMPLE • «••* + + + "• + «••• • »••: MEASUREMENT 0053010 Effluent Gross PERMIT REQUIREMENT «• «+ ' ~ ~• •`••+• • *•••` 35 30DA AVG 70 DAILY MX mg /L Monthly GRAB Solids, settleable SAMPLE •••••` • » +•• • +• «• .+,... MEASUREMENT 005451 0 Effluent Gross PERMIT REQUIREMENT ' ~••' • ~ ~` '~~' • « «* Req. Mon. 30DA AVG Req. Mon. DAILY MX mL/L Monthly GRAB Iron, total [as Fe) SAMPLE ••`••• ••• ~' •• +`•- • » +++ MEASUREMENT 0104510 Effluent Gross PERMIT REQUIREMENT ~•'•+ + ~ ~• ' ~'•• • «'~ 3000 30DA AVG 6000 DAILY MX ug /L Monthly GRAB Oil and grease SAMPLE ••• +•+ •••••• •• *+++ ••. »• • +.•.. MEASUREMENT 0358210 Effluent Gross PERMIT REQUIREMENT *•• +•` ••• +•+ •'•'•• • ~ ~• ' ~' •• 10 INST MAX mg /L Contingent GRAB Flow, in conduit or thru treatment plat SAMPLE • » +•+ ••.••• ..•••. . »... MEASUREMENT 500501 0 Effluent Gross PERMIT REQUIREMENT Req. Mon. 30DA AVG Req. Mon. DAILY MX MGD `""'•` ««`~ `• ~« • ~••• Monthly INSTAN Oil and grease visual SAMPLE ••• +" •••-•+ • ».•. ..•.» . »... MEASUREMENT 840661 0 Effluent Gross PERMIT REQUIREMENT `••••• Req. Mon. INST MAX Y =1;N =0 •• +•*+ •• ».• ... ». . » ». Monthly VISUAL NAMERITLE PRINCIPAL EXECUTIVE OFFICER 1 comfy under penalty of law that tfas document and a® attachments were prepared under my dseclon or supervwion m accordance wdh a system deagned to assure that quaNfied personnel lt nnel properly gather a aluam the nformaton subrm ted Based an my irquay of the person or persons who manage the system or those persons directly responsible for gathering the information, the mformabon sulxnRted a., to the best of my knowledge and belief true accurate and complete I am aware that there are sgmhcant penalties for submdbng fake informabon including the p—bddy of fine and impreonment for nowang —lations -" - • V • t y TELEPHONE DATE ` P (A rpg I A-- Z7-5 -96 6 W IGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR AUTHORIZED AGENT TYPED OR PRINTED AREACcom NUMBER D/YYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS & 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 IA.1,PP 4 -5, AND I.A.2, P. 5 FOR ROMNTS.TDS MONITORING -SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/17/2013 Page 1