40 CFR 471.12: Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent emulsions.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsion

Antimony 0.067 0.030

Lead 0.010 0.005

(b) Rolling spent soap solutions.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with soap solutions

Antimony 0.120 0.055

Lead 0.018 0.009

(c) Drawing spent neat oils—subpart A—BAT. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with emulsions

Antimony 0.080 0.034

Lead 0.011 0.005

(e) Drawing spent soap solutions.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with soap solutions

Antimony 0.022 0.010

Lead 0.003 0.002

(f) Extrusion press and solution heat treatment contact colling water.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds/per million off-pounds) of lead-tin-bismuth heat treated

Antimony 0.414 0.185

Lead 0.061 0.030

(g) Extrusion press hydraulic fluid leakage.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds/per million off-pounds) of lead-tin-bismuth extruded

Antimony 0.158 0.071

Lead 0.023 0.011

(h) Continuous strip casting contact cooling water.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method

Antimony 0.003 0.001

Lead 0.0004 0.0002

(i) Semi-continuous ingot casting contact cooling water.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method

Antimony 0.009 0.004

Lead 0.001 0.0006

(j) Shot casting contact cooling water.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot cast

Antimony 0.107 0.048

Lead 0.016 0.008

(k) Shot-forming wet air pollution control scrubber blowdown.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed

Antimony 0.169 0.076

Lead 0.025 0.012

(l) Alkaline cleaning spent baths.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony 0.345 0.154

Lead 0.051 0.024

(m) Alkaline cleaning rinse.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony 0.678 0.302

Lead 0.099 0.047

(n) Swaging spent emulsions.

Subpart A—BAT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion

Antimony 0.005 0.002

Lead 0.0008 0.0004

(o) Degreasing spent solvents—subpart A—BAT. There shall be no discharge of process wastewater pollutants.