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producing electrolytic manganese after application of the best practicable control technology currently available:"],"cite":{"instrument":"us_40cfr424","title":"40 CFR Part 424 — PART 424—FERROALLOY MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=424","source_sha256":"b9ba02c4f274d6907407c320e0fcce140e72aa79cf2e81ae80ae804f723e7bed","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 424.62 (BPT)","page":null,"quote":"Manganese 2.771 1.356"}},{"id":"2a24a7b45e75a79a","parameter":"Manganese","value":"1.356","value_num":1.356,"unit":"kg/kkg of product","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-96-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 424","the 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application of the best available technology economically achievable:"],"cite":{"instrument":"us_40cfr424","title":"40 CFR Part 424 — PART 424—FERROALLOY MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=424","source_sha256":"b9ba02c4f274d6907407c320e0fcce140e72aa79cf2e81ae80ae804f723e7bed","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 424.73 (BAT)","page":null,"quote":"Manganese 0.530 0.265"}},{"id":"7949debf714fe68e","parameter":"Manganese, total","value":"4.0","value_num":4,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-96-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 434","the discharge is of the Subpart B—Coal Preparation Plants and Coal 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