{"data":{"id":"us/40-cfr-433.13","jurisdiction":"us","citation":"40 CFR 433.13","heading":"Effluent limitations representing the degree of effluent reduction attainable by applying the best practicable control technology currently available (BPT).","body":"(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by applying the best practicable control technology currently available (BPT):\nBPT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Monthly average shall not exceed\nMilligrams per liter (mg/l)\nCadmium (T) 0.69 0.26\nChromium (T) 2.77 1.71\nCopper (T) 3.38 2.07\nLead (T) 0.69 0.43\nNickel (T) 3.98 2.38\nSilver (T) 0.43 0.24\nZinc (T) 2.61 1.48\nCyanide (T) 1.20 0.65\nTTO 2.13\nOil \u0026 Grease 52 26\nTSS 60 31\npH (1) (1)\n1 Within 6.0 to 9.0.\n(b) Alternatively, for industrial facilities with cyanide treatment, and upon agreement between a source subject to those limits and the pollution control authority, the following amenable cyanide limit may apply in place of the total cyanide limit specified in paragraph (a) of this section:\nPollutant or pollutant property Maximum for any 1 day Monthly average shall not exceed\nMilligrams per liter (mg/l)\nCyanide (A) 0.86 0.32\n(c) No user subject to the provisions of this subpart shall augment the use of process wastewater or otherwise dilute the wastewater as a partial or total substitute for adequate treatment to achieve compliance with this limitation.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 433—METAL FINISHING POINT SOURCE CATEGORY","Subpart A—Metal Finishing Subcategory"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"c8201ae8799291e5fb1e4c6f802bb9a2e5ef23366d607cc6a09b1ee1609fe4a4","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-433.12","next":"us/40-cfr-433.14"},"notice":"GroundRules: Original legal text. Not legal advice."}