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  2. copper ore crushing and to what extent the general requirements
copper ore crushing and to what extent the general requirements

copper ore crushing and to what extent the general requirements

EPA promulgated the Ore Mining and Dressing Effluent Guidelines and Standards 40 CFR Part 440 in 1975 and amended the regulation in 1978 1979 1982 and regulation covers wastewater discharges from ore mines and processing operations

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