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PERMITTEE NAME/ADDRESS (include Facility NameAocabonifDifferent) 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 010 -A P I M DISCHARGE MB MONITORING PERIOD MM/DD/YYYY MWDD/YYYY 01/01/2014 01/31/2014 Form Approved OMB No 2040 -0004 DMR Mailing ZIP CODE: 81424 -0535 MINOR GUNIS SEDIMENT POND TO SANBORN CREEK External Outfail No Discharge �A NAME/TITLE PRINCIPAL EXECUTIVE OFFICER 1 rRrtiry under penalty of law that then document and all attachments Mere prepared under my duecnon or TELEPHONE DATE supervrc W n in accordance with a system designed to assure that qualdied personnel properly gather and ` valuate the mformai submeted Based on my inquiry of the person or persons Mho manage the % `j 1 r L O system or those persons d,lectly responsible lot gathenrg the intormanon, the ,nformat"aubneted rc , • e to the best of my knovAedge and belt true accurate and complete I am aware [hat there are y / (Q significant penalties for submitting fake information including the pouttakty, of fine and imprisonment SIGNATURE O RINCIPAL EXECUTIVE OFFICER OR yV Z 0 TYPED OR PRINTED nova g violations AUTHORIZED AGENT NUMBER MWDDIYYYY 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 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 PERIOD REPRTD. EPA Form 3320.1 (Rev.01 106) 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 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 0054510 Effluent Gross PERMIT REQUIREMENT „ «« •••••+ ••• «` • «'•• Req. Mon. 30DA AVG Req. Mon. DAILY MX mUL Monthly GRAB Iron, total [as Fe] SAMPLE ••• «` + « +•+ . «... . „.•. MEASUREMENT 0104510 Effluent Gross PERMIT REQUIREMENT •• "« ` „ «• ` „ «• •• +••' 3500 30DA AVG 7000 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 NAME/TITLE PRINCIPAL EXECUTIVE OFFICER 1 rRrtiry under penalty of law that then document and all attachments Mere prepared under my duecnon or TELEPHONE DATE supervrc W n in accordance with a system designed to assure that qualdied personnel properly gather and ` valuate the mformai submeted Based on my inquiry of the person or persons Mho manage the % `j 1 r L O system or those persons d,lectly responsible lot gathenrg the intormanon, the ,nformat"aubneted rc , • e to the best of my knovAedge and belt true accurate and complete I am aware [hat there are y / (Q significant penalties for submitting fake information including the pouttakty, of fine and imprisonment SIGNATURE O RINCIPAL EXECUTIVE OFFICER OR yV Z 0 TYPED OR PRINTED nova g violations AUTHORIZED AGENT NUMBER MWDDIYYYY 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 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 PERIOD REPRTD. EPA Form 3320.1 (Rev.01 106) Previous editions may be used. 10/17/2013 Page 1