Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
All TitlesTitle 40Chapter IPart 471Subpart A - Subpart A—Lead-Tin-Bismuth Forming Subcategory
View all text of Subpart A [§ 471.10 - § 471.16]
§ 471.13 - New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards. The mass of pollutants in the lead-tin-bismuth forming operations' process wastewater shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart A—NSPS

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 emulsions
Antimony0.0670.030
Lead0.0100.005
Oil and grease0.4680.281
TSS0.9600.457
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Rolling spent soap solutions.

Subpart A—NSPS

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
Antimony0.1200.055
Lead0.0180.009
Oil and grease0.8600.520
TSS1.800.840
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

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

(d) Drawing spent emulsions.

Subpart A—NSPS

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
Antimony0.0760.034
Lead0.0110.005
Oil and grease0.5260.316
TSS1.0870.513
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

(e) Drawing spent soap solutions.

Subpart A—NSPS

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
Antimony0.0220.010
Lead0.0030.002
Oil and grease0.1490.090
TSS0.3060.146
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

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

Subpart A—NSPS

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
Antimony0.4140.185
Lead0.0610.030
Oil and grease2.801.72
TSS5.912.81
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

(g) Extrusion press hydraulic fluid leakage.

Subpart A—NSPS

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
Antimony0.1580.071
Lead0.0230.011
Oil and grease1.100.660
TSS2.261.07
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

(h) Continuous strip casting contact cooling water.

Subpart A—NSPS

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
Antimony0.0030.001
Lead0.00040.0002
Oil and grease0.0200.012
TSS0.0410.020
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

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

Subpart A—NSPS

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 ingot cast by the semi-continuous method
Antimony0.0090.004
Lead0.0010.0006
Oil and grease0.0590.036
TSS0.1210.058
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

(j) Shot casting contact cooling water.

Subpart A—NSPS

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
Antimony0.1070.048
Lead0.0160.008
Oil and grease0.7460.448
TSS1.530.728
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

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

Subpart A—NSPS

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
Antimony0.1690.076
Lead0.0250.012
Oil and grease1.180.706
TSS2.411.15
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

(l) Alkaline cleaning spent baths.

Subpart A—NSPS

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
Antimony0.3450.154
Lead0.0510.024
Oil and grease2.401.44
TSS4.922.34
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

(m) Alkaline cleaning rinse.

Subpart A—NSPS

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
Antimony0.6780.302
Lead0.0990.047
Oil and grease4.722.84
TSS9.684.60
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

(n) Swaging spent emulsions.

Subpart A—NSPS

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
Antimony0.0050.002
Lead0.00080.0004
Oil and grease0.0360.022
TSS0.0730.035
pH( 1)

1 Within the range of 7.5 to 10.0 at all times.

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

[50 FR 34270, Aug. 23, 1985; 51 FR 2884, Jan. 22, 1986]
authority: Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307, 308, and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972 as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311,1314,c,e,and, 1316(b) andc,and; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217
source: 50 FR 34270, Aug. 23, 1985, unless otherwise noted.
cite as: 40 CFR 471.13
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