§ 467.46 - Pretreatment standards for new sources.  


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  • § 467.46 Pretreatment standards for new sources.

    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. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below:

    Subpart D

    Core

    Pollutant or pollutant property PSNS
    Maximum for any 1 day Maximum for monthly average
    mg/off-kg (lb/million off-lbs) of aluminum forged
    Chromium 0.019 0.008
    Cyanide 0.010 0.004
    Zinc 0.051 0.021
    TTO 0.035
    Oil and grease (alternate monitoring parameter) 0.50 0.50

    Subpart D

    Forging Scrubber Liquor

    Pollutant or pollutant property PSNS
    Maximum for any 1 day Maximum for monthly average
    mg/off-kg (lb/million off-lbs) of aluminum forged
    Chromium 0.035 0.014
    Cyanide 0.019 0.008
    Zinc 0.096 0.040
    TTO 0.065
    Oil and grease (alternate monitoring parameter) 0.95 0.95

    Subpart D

    Solution Heat Treatment Contact Cooling Water

    Pollutant or pollutant property PSNS
    Maximum for any 1 day Maximum for monthly average
    mg/off-kg (lb/million off-lbs) of aluminum quenched
    Chromium 0.76 0.31
    Cyanide 0.41 0.16
    Zinc 2.08 0.86
    TTO 1.41
    Oil and grease (alternate monitoring parameter) 20.37 20.37

    Subpart D

    Cleaning or Etching Bath

    Pollutant or pollutant property PSNS
    Maximum for any 1 day Maximum for monthly average
    mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
    Chromium 0.067 0.027
    Cyanide 0.036 0.015
    Zinc 0.183 0.075
    TTO 0.124
    Oil and grease (alternate monitoring parameter) 1.79 1.79

    Subpart D

    Cleaning or Etching Rinse

    Pollutant or pollutant property PSNS
    Maximum for any 1 day Maximum for monthly average
    mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
    Chromium 0.52 0.21
    Cyanide 0.28 0.11
    Zinc 1.42 0.59
    TTO 0.96
    Oil and grease (alternate monitoring parameter) 13.91 13.91

    Subpart D

    Cleaning or Etching Scrubber Liquor

    Pollutant or pollutant property PSNS
    Maximum for any 1 day Maximum for monthly average
    mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
    Chromium 0.72 0.29
    Cyanide 0.39 0.16
    Zinc 1.97 0.812
    TTO 1.34
    Oil and grease (alternate monitoring parameter) 19.33 19.33

    [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, Mar. 27, 1984]