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PERMITTEE NAME/ADDRESS (include Facility Nama&ocation 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 015 -A <br />PERMIT NU. '.E I DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM1DD/YYYY MM/DD/YYYY <br />02/01/2015 02/28/2015 <br />Form Approved <br />OMB No. 2046 -0004 <br />DMR Mailing ZIP CODE: 81424 -0535 <br />MINOR <br />GUNIS <br />DISCHARGE TO ELK CREEK <br />External Outfall <br />No Discharge <br />PARAMETER <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />NO. <br />EX <br />FREQUENCY <br />OF ANALYSIS <br />SAMPLE <br />TYPE <br />VALUE <br />VALUE <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />UNITS <br />pH <br />SAMPLE <br />MEASUREMENT <br />004001 0 <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 />0053010 <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 />MX 7D AV <br />Iron, total [as Fe] <br />SAMPLE <br />"**`** <br />*`•*** <br />* **"*' <br />""•"' <br />MEASUREMENT <br />010451 0 <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 />wwrrwr <br />***""* <br />rr+rwr <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 />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 />8406610 <br />PERMIT <br />"**"*" <br />Req. Mon. <br />Y =1;N =0 <br />'*** ' <br />""*" <br />•"*"" <br />*"**« <br />Weekly <br />VISUAL <br />Effluent Gross <br />REQUIREMENT <br />INST MAX <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />30 DAY AVERAGE IS HIGHEST MONTHLY AVERAGE DURING PERIOD REPORTED. OIL & GREASE - SEE I.B.1.D. <br />EPA Form 3320.1 (Rev.01 /06) Previous edMons may be used. 10/17/2013 Page 1 <br />