{"data":{"id":"us/40-cfr-415.64","jurisdiction":"us","citation":"40 CFR 415.64","heading":"Pretreatment standards for existing sources (PSES).","body":"(a) [Reserved]\n(b) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart and using the diaphragm cell process, which 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):\nSubpart F—Chlor-Alkali-Diaphragm Cells\nPollutant or pollutant property PSES effluent limitations\nMaximum for any 1 day Average of daily values for 30 consecutive days\nMilligrams per liter (mq/1)\nCopper (T) 2.1 0.80\nLead (T) 2.9 1.1\nNickel (T) 1.6 0.64\nIn cases when POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as an alternate: The limitations for Copper (T), Lead(T) and Nickel (T) are the same as specified in § 415.62(b).","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)"],"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":"fead881e3ed27204ad01bae13d4e95264d0a1ded113578394acf93a6738bccc9","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-415.63","next":"us/40-cfr-415.65"},"notice":"GroundRules: Original legal text. Not legal advice."}