40 C.F.R. § 471.12

Current through September 30, 2024

Section 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.

40 C.F.R. §471.12

50 FR 34270, Aug. 23, 1985; 51 FR 2884, Jan. 22, 1986