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PERMITTEE NAME/ADDRESS (Include Facility NameAocation if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br />Somerset, CO 81434 -0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br />SOMERSET, CO 81434 <br />ATTN: Mike Ludlow Exec VP <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />C00000132 i I 014-A <br />PERMIT NUMBER I I DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />02/01/2015 02/28/2015 <br />Form Approved <br />OMB No. 2040 -0004 <br />DMR Mailing ZIP CODE: 81424 -0535 <br />MINOR <br />GUNIS <br />SURF RUNOFF TO N FK GUNNISON R <br />External Outfall <br />No Discharge <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />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 <br />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. <br />EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/17/2013 Page <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />NO. <br />FREQUENCY <br />SAMPLE <br />PARAMETER <br />EX <br />OF ANALYSIS <br />TYPE <br />VALUE <br />VALUE <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />UNITS <br />pH <br />SAMPLE <br />wwwwww <br />wwwwww <br />wwwwww <br />wwwwww <br />MEASUREMENT <br />0040010 <br />PERMIT <br />****•" <br />*•"•"` <br />" **** <br />6.5 <br />' * " "' <br />9 <br />SU <br />Monthly <br />INSITU <br />Effluent Gross <br />REQUIREMENT <br />MINIMUM <br />MAXIMUM <br />Solids, total suspended <br />SAMPLE <br />" ""*`" <br />•""**` <br />" **" ** <br />•*•••• <br />MEASUREMENT <br />005301 0 <br />PERMIT <br />`"*""* <br />""** <br />* ""** <br />"**** <br />35 <br />70 <br />mg /L <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Solids, settleable <br />SAMPLE <br />**`*** <br />`***** <br />`*'*** <br />* *• * "" <br />MEASUREMENT <br />005451 0 <br />PERMIT <br />" ""*** <br />**"*** <br />' " " * ** <br />**** ** <br />Req. Mon. <br />Req. Mon. <br />mUL <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Iron, total [as Fe] <br />SAMPLE <br />* ***" <br />"*" **" <br />* *"** <br />"""'• <br />MEASUREMENT <br />0104510 <br />PERMIT <br />* ***** <br />*•`*** <br />* ***" <br />* "'" <br />3000 <br />6000 <br />ug /L <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Oil and grease <br />SAMPLE <br />*• *** <br />***'** <br />* `* * <br />***•*" <br />*""" <br />MEASUREMENT <br />0358210 <br />PERMIT <br />••*'*• <br />*•**"" <br />* **""* <br />` " *`" <br />"***`* <br />10 <br />mg /L <br />Contingent <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />INST MAX <br />Flow, in conduit or thru treatment plat <br />SAMPLE <br />* *"** <br />"••" <br />"""" <br />"wwww <br />MEASUREMENT <br />5005010 <br />PERMIT <br />Req. Mon. <br />Req. Mon. <br />MGD <br />" *•"• <br />*"•"• <br />•*""" <br />••"'*` <br />Monthly <br />INSTAN <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Oil and grease visual <br />SAMPLE <br />MEASUREMENT <br />840661 0 <br />PERMIT <br />•***** <br />Req. Mon. <br />Y =1;N =0 <br />"* `•' <br />*`*`** <br />*"**'• <br />`•`••' <br />Monthly <br />VISUAL <br />Effluent Gross <br />REQUIREMENT <br />INST MAX <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />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 <br />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. <br />EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/17/2013 Page <br />