{"data":{"id":"us/40-cfr-415.66","jurisdiction":"us","citation":"40 CFR 415.66","heading":"Pretreatment standards for new sources (PSNS).","body":"(a) Except as provided in 40 CFR 403.7, any new source subject to this subpart and using the mercury 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 New Sources (PSNS):\nSubpart F—Chlor-Alkali-Mercury Cells\nPollutant or pollutant property PSNS effluent limitations\nMaximum for any 1 day Average of daily values for 30 consecutive days\nMilligrams per liter\nMercury (T) 0.11 0.048\nIn cases where POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as an alternate: The limitations for mercury (T) are the same as specified in § 415.65(a).\n(b) Except as provided in 40 CFR 403.7, any new source subject to this subpart and using the diaphragm cell process, which introduces pollutants into a publicly owned treatment works, must compy with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS):\nSubpart F—Diaphragm Cells\nPollutant or pollutant property PSNS effluent limitations\nMaximum for any 1 day Average of daily values for 30 consecutive days\nMilligrams per liter (mg/1)\nLead(T) 0.53 0.21\nIn cases where POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as an alternate: The limitations for Lead(T) are the same as specified in § 415.65(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":"3562852762dc12c27040ab696ab04ad6bd935f9bdf37213d97497da033e16e90","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-415.65","next":"us/40-cfr-415.67"},"notice":"GroundRules: Original legal text. Not legal advice."}