{"data":{"id":"us/40-cfr-434.45","jurisdiction":"us","citation":"40 CFR 434.45","heading":"New source performance standards (NSPS).","body":"Except as provided in 40 CFR 401.17 and §§ 434.61 and 434.63 of this part, the following new source performance standards shall be achieved for any discharge from a new source subject to this subpart:\nNSPS Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Average of daily values for 30 consecutive days\nConcentration in mg/l\nIron, total 6.0 3.0\nTSS 70.0 35.0\npH (1) (1)\n1 Within the range 6.0 to 9.0 at all times.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 434—COAL MINING POINT SOURCE CATEGORY BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS","Subpart D—Alkaline Mine Drainage"],"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":"acaeb2f8627b1e7fd2a1b9d5d0178b858a52528610f42cb1a343764efe530b3e","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-434.44","next":"us/40-cfr-434.50"},"notice":"GroundRules: Original legal text. Not legal advice."}