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PARAMETER <br />1 ,,,th und„ peneln of law that this d■wm,nt and all nnachrnows wen prepared und,.r nn dlr..non or <br />„,pe,,, . a,Gorda"w nu a.. n,e ma�q„nreap,,.nnn.l proper I %oh and <br />th <br />er ho, pawns dimetly ro,pum ble for gethetmg the tu p u <br />tontwuon ∎hc mm <br />tt fuunun abm.t.xi a <br />o the Iw., of ,n. knowledge and bc.tef we ecunryte, and wmpiete I am ../11. [het there arc wgmfieam <br />p, is r .. „r.nnm u•ng le .e m, „n n iedmg m. L >i n ,n r n and i , nm.n:1 , : ;,, ,.n <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 />00400 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />6 5 <br />MINIMUM <br />9 <br />MAXIMUM <br />SU <br />Monthly <br />INSITU <br />Solias, total suspenaed <br />005301 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />35 <br />30DA AVG <br />70 <br />DAILY MX <br />mg/L <br />Monthly <br />GRAB <br />Solids, settleable <br />00545 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />Req Mon. <br />30DA AVG <br />Req. Mon. <br />DAILY MX <br />mUL <br />Monthly <br />GRAB <br />Iron, total (as Fe) <br />010451 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />"•"' <br />3000 <br />30DA AVG <br />6000 <br />DAILY MX <br />ug/L <br />Monthly <br />GRAB <br />Oil and grease <br />0358210 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />10 <br />INST MAX <br />mg/L <br />Contingent <br />GRAB <br />Flow, in conduit or thru treatment plant <br />50050 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />, ~,.. <br />PERMIT <br />REQUIREMENT <br />Req. Mon. <br />30DA AVG <br />Req Mon <br />DAILY MX <br />Mgal /d <br />•• " "~ <br />Monthly <br />INSTAN <br />Oil and grease visual <br />84066 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />Req. Mon <br />INST MAX <br />Y=1 ;N=0 <br />~ "`• <br />••• "• <br />Monthly <br />VISUAL <br />ME/TITLEPRWCIPA EC EOFFICER <br />' <br />1 ,,,th und„ peneln of law that this d■wm,nt and all nnachrnows wen prepared und,.r nn dlr..non or <br />„,pe,,, . a,Gorda"w nu a.. n,e ma�q„nreap,,.nnn.l proper I %oh and <br />th <br />er ho, pawns dimetly ro,pum ble for gethetmg the tu p u <br />tontwuon ∎hc mm <br />tt fuunun abm.t.xi a <br />o the Iw., of ,n. knowledge and bc.tef we ecunryte, and wmpiete I am ../11. [het there arc wgmfieam <br />p, is r .. „r.nnm u•ng le .e m, „n n iedmg m. L >i n ,n r n and i , nm.n:1 , : ;,, ,.n <br />/� ^ <br />"i ` <br />• rG <br />TELEPHONE <br />DATE <br />Va't' CC. ) <br />Y - <br />(1GCr 1 f Pre // <br />�() _ �s/ Z <br />®D ]_ ZU Z <br />GNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />AUTHORIZED AGENT <br />AREA c o d e NUMBER <br />MM/. ./YYYY <br />TYPED OR PRINTED <br />PERN,;TTEE 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 James T Cooper, EVP <br />EPA Form 3320 -1 (Rev.01106) Previous editions may be used. <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />FROM <br />C00000132 <br />PERMIT NUMBER <br />014 -A <br />DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM /DD/YYYY <br />04/01/2012 <br />MM/DD/YYYY <br />04/30/2012 <br />TO <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 EVENT -SEE I.A.1,PP 4 -5, AND I.A.2, P. 5 <br />FOR RQMNTS TDS MONITORING -SEE PART VI A.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. <br />11/09/2011 Page 1 <br />