{"data":{"id":"us/40-cfr-430.66","jurisdiction":"us","citation":"40 CFR 430.66","heading":"Pretreatment standards for existing sources (PSES).","body":"Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart that introduces pollutants into a publicly owned treatment works must: comply with 40 CFR part 403; and achieve the following pretreatment standards for existing sources (PSES) if it uses chlorophenolic-containing biocides. Permittees not using chlorophenolic-containing biocides must certify to the permit-issuing authority that they are not using these biocides. PSES must be attained on or before July 1, 1984:\nSubpart F\nPollutant or pollutant property PSES\nMaximum for any 1 day\nMilligrams/liter Kg/kkg (or pounds per 1,000 lb) of product a\nPentachlorophenol (0.032)(10.3)/y 0.0014\nTrichlorophenol (0.010)(10.3)/y 0.00043\ny = wastewater discharged in kgal per ton of product.\na The following equivalent mass limitations are provided as guidance in cases when POTWs find it necessary to impose mass equivalent limitations.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 430—THE PULP, PAPER, AND PAPERBOARD POINT SOURCE CATEGORY","Subpart F—Semi-Chemical 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":"fde5a0476f97a8d2fc09bf6da691f04fd7ba463732ad1e3128380b06f3063d28","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-430.65","next":"us/40-cfr-430.67"},"notice":"GroundRules: Original legal text. Not legal advice."}