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PERMITTEE NAME/ADDRESS (Include Facility Name/Location if 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) C00000132 j I 017 -A L_PERMIT NUMBER DISCHAR G NU MONITORING PERIOD MM/DD /YYYY MM/DD/YYYY Otto 1 04/30/2014 Form Approve r OMB No. 2040 -0004 DMR Mailing ZIP CODE: 81424 -0535 MINOR GUNIS SURF RUNOFF TO N. FK GUNIS RIV External Outfall No Discharge 0 PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. EX FREQUENCY OF ANALYSIS SAMPLE TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS pH 0040010 Effluent Gross Solids, total suspended 0053010 Effluent Gross Solids, settleable 0054510 Effluent Gross Iron, total [as Fe] SAMPLE MEASUREMENT •••••* •N,N NNN PERMIT REQUIREMENT SAMPLE MEASUREMENT •• *••* * *• *•• «••••* ...,,. '•«*•• 6.5 MINIMUM 9 MAXIMUM SU Monthly INSITU PERMIT REQUIREMENT SAMPLE MEASUREMENT *•• « ** *• * * ** + + » »N ” „f„ .,,,,: • „•„ 35 30DA AVG 70 DAILY MX mg /L Monthly GRAB PERMIT REQUIREMENT SAMPLE MEASUREMENT • *•• :* * * *••, .NN, , „ «„ :•.N» ,,,, "• * „•„ ••,f,f Req. Mon. 30DA AVG Req. Mon. DAILY MX mL/L Monthly GRAB 0104510 Effluent Gross Oil and grease PERMIT REQUIREMENT SAMPLE MEASUREMENT • * *••+ * * *• *• fN „: „f »„ , " „„ , , ”' "•' 3000 30DA AVG 6000 DAILY MX ug/L Monthly GRAB 0358210 Effluent Gross Flow, in conduit or thru treatment plat 500501 0 Effluent uent t Gross Oil and grease visual 840661 0 Effluent Gross PERMIT REQUIREMENT SAMPLE MEASUREMENT • « * *«• »NNf k�•• »• 10 INST MAX mg /L Contingent GRAB NN *• ffmf RMIT REQUIREMENT SAMPLE MEASUREMENT Req. Mon. 30DA AVG • *• * «• Req. Mon. DAILY MX MGD ** * « ** .• *,„ • ••••* N.,.. „ * „• Monthly INSTAN • « *•.• ' " " "'" •'•• ** PERMIT REQUIREMENT •••• «• Req. Mon. INST MAX Y =1;N =0 •••••* *« *• ** ”' *'• "` **' Monthly VISUAL NAME /TITLE PRINCIPAL EXECuflvF nFFiccw 11 °erhroum,1" ».,.• m ,,.f— "....- .__..___.____,._____ supeni smn in accordance widt a system designed to assure that q uakhedP�r� u pro my mrecuon d TELEPHONE 'evaluate the information submitted Based on m 9 personnel property Bather and DATE Y O Y �ngary of the person or persons who manage the System, or those persons directly responsible for gathering the information, the mformabon submehd a, i i /� / /,�'I^`\ r. P �/ to the beat of my knovAetlge and belief true, accurate, and complete I am ware that there are ti' *� , \ 11 ^/ \I �7 agmhcam penalties for submitting false information, including the poacibiNty of rate and snpraonment for SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR TYPED OR PRINTED °°""r'g�'°ledons COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) AUTHORIZED AGENT AREA cow I NUMBER TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIES FOR < 10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVERT -SEE I.A.1,PP 4 -5, AND I.A.2., P 5 FOR RQMNTS. TDS MONITORING - SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG. DURING PERIOD RPTD EPA Form 3320 -1 (Rev.01 /06) Previous editions may be used. 10/17/2013 Page 1