{"data":{"id":"us/40-cfr-430.126","jurisdiction":"us","citation":"40 CFR 430.126","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 L\n[PSES for non-integrated mills where tissue papers are produced from purchased pulp]\nPollutant or pollutant property Maximum for any 1 day\nMilligrams/liter (mg/l) Kg/kkg (or pounds per 1,000 lb) of product a\nPentachlorophenol (0.032)(22.9)/y 0.0031\nTrichlorophenol (0.010)(22.9)/y 0.00096\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 effluent limitations.\nSubpart L\n[PSES for non-integrated mills where filter and non-woven papers are produced from purchased pulp]\nPollutant or pollutant property Maximum for any 1 day\nMilligrams/liter (mg/l) Kg/kkg (or pounds per 1,000 lb) of product a\nPentachlorophenol (0.032)(59.9)/y 0.0080\nTrichlorophenol (0.010)(59.9)/y 0.0025\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 effluent limitations.\nSubpart L\n[PSES for non-integrated mills where paperboard is produced from purchased pulp]\nPollutant or pollutant property Maximum for any 1 day\nMilligrams/liter (mg/l) Kg/kkg (or pounds per 1,000 lb) of product a\nPentachlorophenol (0.032)(12.9)/y 0.0017\nTrichlorophenol (0.010)(12.9)/y 0.00054\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 effluent 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 L—Tissue, Filter, Non-Woven, and Paperboard From Purchased Pulp 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":"602754553e956c894248ecf3aa8a6adccf5439c971350496599ebd6ec74de958","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-430.125","next":"us/40-cfr-430.127"},"notice":"GroundRules: Original legal text. Not legal advice."}