{"data":{"id":"us/40-cfr-430.37","jurisdiction":"us","citation":"40 CFR 430.37","heading":"Pretreatment standards for new sources (PSNS).","body":"(a) Except as provided in 40 CFR 403.7, any new 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 new sources (PSNS) 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:\nSubpart C\n[PSNS for unbleached kraft facilities where linerboard is produced]\nPollutant or pollutant property Maximum for any 1 day\nMilligrams/liter Kg/kkg (or pounds per 1,000 lb) of product a\nPentachlorophenol (0.015)(9.4)/y 0.00058\nTrichlorophenol (0.013)(9.4)/y 0.00053\ny = wastewater discharged in kgal per ton of product.\na The following equivalent mass limitations are provided as guidance in cases where POTWs find it necessary to impose mass effluent limitations.\nSubpart C\n[PSNS for unbleached kraft facilities where bag paper and other mixed products are produced]\nPollutant or pollutant property Maximum for any 1 day\nMilligrams/liter Kg/kkg (or pounds per 1,000 lb) of product a\nPentachlorophenol (0.012)(11.4)/y 0.00058\nTrichlorophenol (0.011)(11.4)/y 0.00053\ny = wastewater discharged in kgal per ton of product.\na The following equivalent mass limitations are provided as guidance in cases where POTWs find it necessary to impose mass effluent limitations.\nSubpart C\n[PSNS for unbleached kraft facilities where pulp and paper are produced using the unbleached kraft-neutral sulfite semi-chemical (cross recovery) process and/or a combined unbleached kraft and semi-chemical process, wherein the spent semi-chemical cooking liquor is burned within the unbleached kraft chemical recovery system]\nPollutant or pollutant property Maximum for any 1 day\nMilligrams/liter Kg/kkg (or pounds per 1,000 lb) of product a\nPentachlorophenol (0.013)(11.5)/y 0.00064\nTrichlorophenol (0.012)(11.5)/y 0.00059\ny = wastewater discharged in kgal per ton of product.\na The following equivalent mass limitations are provided as guidance in cases where 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 C—Unbleached Kraft 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":"afc4ede37e6dc7dcb38930ef634600712c853d48c4ee35f5dbe5227c724343db","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-430.36","next":"us/40-cfr-430.40"},"notice":"GroundRules: Original legal text. Not legal advice."}