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J <br /> •ll <br /> ,1 <br /> it <br /> NPDES Priorities at Historic Mines and Applicable Effluent Limits <br /> Priority Situation Basis of NPOES Limits Storm Water <br /> Permit <br /> Technology WQS <br /> Higti Historic sources influenced ELG - 40 CF'R 440 Yes' Yes , combine <br /> by active mining . BPT, BAT or NSPS with crad . <br /> permit <br /> High Historic sources influenced BPJ - usually Yes` Yes' <br /> by current activities equivalent to BAT <br /> (significant exploration, <br /> construction etc. ) <br /> High Historic sources influenced BPJ Yes` Yes' <br /> by current activities <br /> (minor exploration, <br /> construction etc . ) <br /> Medium Inactive sources created BPJ Yes' Yes' ; <br /> since 1972 owned by current I <br /> operator. <br /> Medium Historic sources owned by BPJ Yes' Yes' <br /> operator wicn nearby active t' <br /> rnzninq operations . <br /> Medium Inactive sources owned by BPJ' Yes` Yes' <br /> someciiie with activity' in an <br /> area but not mining . <br /> Low Inactive sources owned by Iioi Yes' Yes' <br /> someo«e with no activity in <br /> the area. <br /> u <br /> ri <br />