{"data":{"id":"us/40-cfr-463.12","jurisdiction":"us","citation":"40 CFR 463.12","heading":"Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.","body":"Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the effluent limitations guidelines (i.e., mass of pollutant discharged) representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available, which are calculated by multiplying the average process water usage flow rate for the contact cooling and heating water processes at a point source times the following pollutant concentrations:\nSubpart A\n[Contact cooling and heating water]\nConcentration used to calculate BPT effluent limitations\nPollutant or pollutant property Maximum for any 1 day (mg/l)\nBOD5 26\nOil and grease 29\nTSS 19\npH (1)\n1 Within the range of 6.0 to 9.0 at all times.\nThe permit authority will obtain the average process water usage flow rate for the contact cooling and heating water processes from the permittee.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 463—PLASTICS MOLDING AND FORMING POINT SOURCE CATEGORY","Subpart A—Contact Cooling and Heating Water 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":"535929f37955ea058f44aa282546bd7a2989f6f91e67141aa89d6b270d287058","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-463.11","next":"us/40-cfr-463.13"},"notice":"GroundRules: Original legal text. Not legal advice."}