40 CFR 467.26: Pretreatment standards for new sources.

Except as provided in § 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 process wastewater pollutants from the core and ancillary operations introduced into a POTW shall not exceed the values set forth below:

Subpart B

Core

Pollutant or pollutant property PSNS

Maximum for any 1 day Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions

Chromium 0.048 0.020

Cyanide 0.026 0.011

Zinc 0.133 0.055

TTO 0.090

Oil and grease (alternate monitoring parameter) 1.30 1.30

Subpart B

Direct Chill Casting 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 cast by semicontinuous methods

Chromium 0.49 0.20

Cyanide 0.27 0.11

Zinc 1.36 0.56

TTO 0.92

Oil and grease (alternate monitoring parameter) 13.29 13.29

Subpart B

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 0.17

Zinc 2.08 0.86

TTO 1.41

Oil and grease (alternate monitoring parameter) 20.37 20.37

Subpart B

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 B

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 B

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 0.81

TTO 1.34

Oil and grease (alternate monitoring parameter) 19.33 19.33