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

§ 467.44 - New source performance standards.

Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core shall not exceed the values set forth below:

Subpart D Core
Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium0.0190.008 Cyanide0.0100.004 Zinc0.0510.021 Aluminum0.3050.135 Oil and grease0.500.50 Suspended solids0.750.60 pH( 1)( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart D Forging Scrubber Liquor
Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium0.0350.014 Cyanide0.0190.008 Zinc0.0960.04 Aluminum0.5760.256 Oil and grease0.9430.95 Suspended solids1.421.13 pH( 1)( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart D Solution Heat Treatment Contact Cooling Water
Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium0.760.31 Cyanide0.410.163 Zinc2.080.86 Aluminum12.455.52 Oil and grease20.3720.37 Suspended solids30.5624.45 pH( 1)( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart D Cleaning or Etching Bath
Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium0.0660.027 Cyanide0.0360.015 Zinc0.1830.075 Aluminum1.0940.485 Oil and grease1.791.79 Suspended solids2.692.15 pH( 1)( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart D Cleaning or Etching Rinse
Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium0.520.21 Cyanide0.280.11 Zinc1.420.59 Aluminum8.53.77 Oil and grease13.9113.91 Suspended solids20.8716.69 pH( 1)( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart D Cleaning or Etching Scrubber Liquor
Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium0.720.29 Cyanide0.390.155 Zinc1.970.812 Aluminum11.815.24 Oil and grease19.3319.33 Suspended solids29.0023.20 pH( 1)( 1)

1 Within the range of 7.0 to 10 at all times.

[48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, Mar. 27, 1984]