{"data":{"id":"us/40-cfr-467.56","jurisdiction":"us","citation":"40 CFR 467.56","heading":"Pretreatment standards for new sources.","body":"Except as provided in 40 CFR 403.7, any new source subject to this subpart 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.\nThe mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below:\nSubpart E\nCore\nPollutant or pollutant property PSNS\nMaximum for any 1 day Maximum for monthly average\nmg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils\nChromium 0.019 0.008\nCyanide 0.010 0.004\nZinc 0.051 0.021\nTTO 0.035\nOil and grease (alternate monitoring parameter) 0.50 0.50\nSubpart E\nContinuous Rod Casting Lubricant\nPollutant or pollutant property PSNS\nMaximum for any 1 day Maximum for monthly average\nmg/off-kg (lb/million off-lbs) of aluminum rod cast\nChromium 0.0007 0.0003\nCyanide 0.0004 0.0002\nZinc 0.0020 0.0008\nTTO 0.0014\nOil and grease (alternate monitoring parameter) 0.020 0.020\nSubpart E\nContinuous Rod Casting Contact Cooling Water\nPollutant or pollutant property PSNS\nMaximum for any 1 day Maximum for monthly average\nmg/off-kg (lb/million off-lbs) of aluminum rod cast\nChromium 0.072 0.029\nCyanide 0.039 0.016\nZinc 0.198 0.134\nTTO 0.082\nOil and grease (alternate monitoring parameter) 1.94 1.94\nSubpart E\nSolution Heat Treatment Contact Cooling Water\nPollutant or pollutant property PSNS\nMaximum for any 1 day Maximum for monthly average\nmg/off-kg (lb/million off-lbs) of aluminum quenched\nChromium 0.76 0.306\nCyanide 0.41 0.163\nZinc 2.08 0.856\nTTO 1.41\nOil and grease (alternate monitoring parameter) 20.37 20.37\nSubpart E\nCleaning or Etching Bath\nPollutant or pollutant property PSNS\nMaximum for any 1 day Maximum for monthly average\nmg/off-kg (lb/million off-lbs) of aluminum cleaned or etched\nChromium 0.067 0.027\nCyanide 0.036 0.015\nZinc 0.183 0.075\nTTO 0.124\nOil and grease (alternate monitoring parameter) 1.79 1.79\nSubpart E\nCleaning or Etching Rinse\nPollutant or pollutant property PSNS\nMaximum for any 1 day Maximum for monthly average\nmg/off-kg (lb/million off-lbs) of aluminum cleaned or etched\nChromium 0.52 0.21\nCyanide 0.28 0.11\nZinc 1.42 0.59\nTTO 0.96\nOil and grease (alternate monitoring parameter) 13.91 13.91\nSubpart E\nCleaning or Etching Scrubber Liquor\nPollutant or pollutant property PSNS\nMaximum for any 1 day Maximum for monthly average\nmg/off-kg (lb/million off-lbs) of aluminum cleaned or etched\nChromium 0.72 0.29\nCyanide 0.39 0.16\nZinc 1.97 0.812\nTTO 1.34\nOil and grease (alternate monitoring parameter) 19.33 19.33","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 467—ALUMINUM FORMING POINT SOURCE CATEGORY","Subpart E—Drawing With Neat Oils 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":"660228885bda1a3f8450c88e84dcf0b515612d63ca2ec7aac2bec517f3996b20","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-467.55","next":"us/40-cfr-467.57"},"notice":"GroundRules: Original legal text. Not legal advice."}