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PERMITTEE NAME/ADDRESS (Include Facility Name/Location 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 />000000132 015-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />0 1 05/31/2015 <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />DISCHARGE TO ELK CREEK <br />External Outfall <br />No Discharge <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER <br />Icertify under penalty oflaw that this document and all attachments were prepared under mydirectionor <br />supervision in accordance with a system designed to assure that qualified personnel propertygather and <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 />...... <br />.... <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 />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 />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 />MEASUREMENT <br />0358210 <br />Effluent Gross <br />PERMIT <br />REQUIREMENT <br />****** <br />****** <br />**"*« <br />*'**** <br />****** <br />10 <br />INST MAX <br />mg/L <br />Contingent <br />GRAB <br />Flow, in conduit or thru treatment plat <br />SAMPLE <br />****** <br />****** <br />****** <br />****** <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 />Weekly <br />VISUAL <br />Effluent Gross <br />REQUIREMENT <br />INST MAX <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER <br />Icertify under penalty oflaw that this document and all attachments were prepared under mydirectionor <br />supervision in accordance with a system designed to assure that qualified personnel propertygather and <br />/t �i / , /t' <br />TELEPHONE DATE <br />valuate the Information submitted Based on my inquiry of the person or persons who man the <br />system, or those persons directly responsible for gathering the Information, the information submu;, <br />G/ 'I/� ��qY/1) <br />,dietl <br />�l r +.�Y"C„ sil <br />�t <br />arM belief, true accurate, and complete I am aware that there are <br />to the best of my knowledge submitting <br />sgnifiwnt penalties for submrtbng false information including the possibility of fine and imprisonment for <br />/4' J O 06 d <br />SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />no"ng wnlaaons <br />AUTHORIZED AGENT <br />TYPED OR PRINTED <br />ARFACode Nl1MRFR MM/rf nvw <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 1.B.1.D. <br />EPA Form 3320-1 (Rev.01/06) Previous editions may be used. 10/17/2013 Page 1 <br />