40 C.F.R. § 467.55

Current through October 31, 2024
Section 467.55 - Pretreatment standards for existing sources

Except as provided in 40 CFR 403.7 and 403.13 , any existing 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 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 E

Core

Pollutant or pollutant propertyPSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils
Chromium0.0220.009
Cyanide0.0150.006
Zinc0.0730.031
TTO0.035
Oil and grease (alternate monitoring parameter)2.61.3

Subpart E

Continuous Rod Casting Lubricant

Pollutant or pollutant propertyPSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium0.00090.0004
Cyanide0.00060.0003
Zinc0.00290.0012
TTO0.0014
Oil and grease (alternate monitoring parameter)0.100.052

Subpart E

Continuous Rod Casting Contact Cooling Water

Pollutant or pollutant propertyPSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium0.0860.035
Cyanide0.0570.023
Zinc0.2830.118
TTO0.133
Oil and grease (alternate monitoring parameter)105.1

Subpart E

Solution Heat Treatment Contact Cooling Water

Pollutant or pollutant propertyPSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum quenched
Chromium0.8960.367
Cyanide0.5910.245
Zinc2.981.24
TTO1.41
Oil and grease (alternate monitoring parameter)11053

Subpart E

Cleaning or Etching Bath

Pollutant or pollutant propertyPSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium0.0790.033
Cyanide0.0520.022
Zinc0.2620.109
TTO0.124
Oil and grease (alternate monitoring parameter)9.34.7

Subpart E

Cleaning or Etching Rinse

Pollutant or pollutant propertyPSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium0.6120.251
Cyanide0.4040.17
Zinc2.030.85
TTO0.96
Oil and grease (alternate monitoring parameter)7336

Subpart E

Cleaning or Etching Scrubber Liquor

Pollutant or pollutant propertyPSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium0.8510.348
Cyanide0.5610.232
Zinc2.821.18
TTO1.34
Oil and grease (alternate monitoring parameter)10050

40 C.F.R. §467.55

48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11635, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988