{"data":{"id":"us/40-cfr-435.44","jurisdiction":"us","citation":"40 CFR 435.44","heading":"Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).","body":"Except as provided in 40 CFR 125.30-125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT):\nBCT Effluent Limitations\nStream Pollutant parameter BCT effluent limitations\nProduced Water (all facilities) Oil \u0026 Grease The maximum for any one day shall not exceed 72 mg/l and the 30-day average shall not exceed 48 mg/l.\nDrilling Fluids and Drill Cuttings and Dewatering Effluent: 1\nAll facilities except Cook Inlet No discharge.\nCook Inlet:\nWater-based drilling fluids, drill cuttings, and dewatering effluent Free Oil No discharge. 2\nNon-aqueous drilling fluids and dewatering effluent No discharge.\nDrill cuttings associated with non-aqueous drilling fluids Free Oil No discharge. 2\nWell Treatment, Workover and Completion Fluids Free Oil No discharge. 2\nProduced Sand No discharge.\nDeck Drainage Free Oil No discharge. 3\nSanitary Waste:\nSanitary M10 Residual Chlorine Minimum of 1 mg/l maintained as close to this concentration as possible.\nSanitary M91M Floating Solids No discharge.\nDomestic Waste Floating Solids and garbage No discharge of Floating Solids or garbage.\n1 BCT limitations for dewatering effluent are applicable prospectively. BCT limitations in this rule are not applicable to discharges of dewatering effluent from reserve pits which as of the effective date of this rule no longer receive drilling fluids and drill cuttings. Limitations on such discharges shall be determined by the NPDES permit issuing authority.\n2 As determined by the static sheen test. See § 435.41(ff).\n3 As determined by the presence of a film or sheen upon or a discoloration of the surface of the receiving water (visual sheen).","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 435—OIL AND GAS EXTRACTION POINT SOURCE CATEGORY","Subpart D—Coastal 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":"c2a78062990c172489ff30dc94d9cf88810f4ed0110f56ce637549a8746dc399","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-435.43","next":"us/40-cfr-435.45"},"notice":"GroundRules: Original legal text. Not legal advice."}