{"data":{"id":"us/40-cfr-415.65","jurisdiction":"us","citation":"40 CFR 415.65","heading":"New source performance standards (NSPS).","body":"(a) Any new source subject to this subpart and using the mercury cell process must achieve the following new source performance standards (NSPS):\nSubpart F—Chlor-Alkali-Mercury Cells\nPollutant or pollutant property NSPS limitations\nMaximum for any 1 day Average of daily values for 30 consecutive days\nKq/kkg (or pounds per 1,000 lb) of product\nTSS 0.64 0.32\nMercury (T) 0.00023 0.00010\nTotal Residual Chlorine 0.0032 0.0019\npH (1) (1)\n1 Within the range 6.0 to 9.0.\n(b) Any new source subject to this subpart and using the diaphragm cell process must achieve the following new source performance standards (NSPS):\nSubpart F—Chlor-Alkali-Diaphragm Cells\nPollutant or pollutant property NSPS limitations\nMaximum for any 1 day Average of daily values for 30 consecutive days\nKq/kkg (or pounds per 1,000 lb) of product\nTSS 1.1 0.51\nLead (T) 0.0047 0.0019\nTotal Residual Chlorine 0.013 0.0079\npH (1) (1)\n1 Within the range 6.0 to 9.0.","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":"87469bae01deba72906b2c918fe5ffe80a6a4aac5e64a934bcc74b2e41a3f194","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-415.64","next":"us/40-cfr-415.66"},"notice":"GroundRules: Original legal text. Not legal advice."}