View all text of Subpart D [§ 467.40 - § 467.47]

§ 467.45 - Pretreatment standards for existing sources.

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduced pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing 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 PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium0.0220.009 Cyanide0.0150.006 Zinc0.0730.031 TTO0.035Oil and grease (alternate monitoring parameter)2.61.3
Subpart D Forging Scrubber Liquor
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium0.0420.017 Cyanide0.0280.011 Zinc0.140.058 TTO0.065Oil and grease (alternate monitoring parameter)4.92.5
Subpart D Solution Heat Treatment Contact Cooling Water
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium0.8970.37 Cyanide0.5910.25 Zinc2.981.24 TTO1.41Oil and grease (alternate monitoring parameter)11053
Subpart D Cleaning or Etching Bath
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium0.0790.032 Cyanide0.0520.022 Zinc0.260.11 TTO0.123Oil and grease (alternate monitoring parameter)9.34.7
Subpart D Cleaning or Etching Rinse
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mb/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium1.70.7 Cyanide1.20.5 Zinc5.72.4 TTO2.7Oil and grease (alternate monitoring parameter)200100
Subpart D Cleaning or Etching Scrubber Liquor
Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium0.8510.35 Cyanide0.5610.23 Zinc2.821.18 TTO1.34Oil and grease (alternate monitoring parameter)10050
[48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11635, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988]