Regulations last checked for updates: Jun 02, 2024

Title 40 - Protection of Environment last revised: May 30, 2024
§ 421.130 - Applicability: Description of the secondary lead subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of lead by secondary lead facilities.

§ 421.131 - Specialized definitions.

For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.

§ 421.132 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:

(a) Subpart M—Battery Cracking

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony1.932.862
Arsenic1.407.579
Lead.283.135
Zinc.983.411
Ammonia (as N).000.000
Total suspended solids27.60013.130
pH( 1)( 1)

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

(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony7.4913.341
Arsenic5.4552.245
Lead1.096.522
Zinc3.8111.592
Ammonia (as N).000.000
Total suspended solids107.00050.900
pH( 1)( 1)

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

(c) Subpart M—Kettle Wet Air Pollution Control

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from refining
Antimony.129.058
Arsenic.094.039
Lead.019.009
Zinc.066.027
Ammonia (as N).000.000
Total suspended solids1.845.878
pH( 1)( 1)

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

(d) Subpart M—Lead Paste Desulfurization

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead processed through desulfurization
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000
Total suspended solids.000.000
pH( 1)( 1)

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

(e) Subpart M—Casting Contact Cooling

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead cast
Antimony.634.283
Arsenic.462.190
Lead.093.044
Zinc.323.135
Ammonia (as N).000.000
Total suspended solids9.0614.310
pH( 1)( 1)

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

(f) Subpart M—Truck Wash.

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.060.027
Arsenic.044.018
Lead.009.004
Zinc.031.013
Ammonia (as N).000.000
Total suspended solids.861.410
pH( 1)( 1)

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

(g) Subpart M—Facility Washdown

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000
Total suspended solids.000.000
pH( 1)( 1)

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

(h) Subpart M—Battery Case Classification.

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000
Total suspended solids.000.000
pH( 1)( 1)

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

(i) Subpart M—Employee Handwash.

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.077.035
Arsenic.056.023
Lead.011.005
Zinc.039.016
Ammonia (as N).000.000
Total suspended solids1.107.527
pH( 1)( 1)

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

(j) Subpart M—Employee Respirator Wash.

BPT Effulent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.126.056
Arsenic.092.038
Lead.018.009
Zinc.064.027
Ammonia (as N).000.000
Total suspended solids1.804.858
pH( 1)( 1)

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

(k) Subpart M—Laundering of Uniforms.

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.367.164
Arsenic.268.110
Lead.054.026
Zinc.187.078
Ammonia (as N).000.000
Total suspended solids5.2482.496
pH( 1)( 1)

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

[49 FR 8826, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984]
§ 421.133 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

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

(a) Subpart M—Battery Cracking.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony1.299.579
Arsenic.936.384
Lead.189.087
Zinc.687.283
Ammonia (as N).000.000

(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony5.0382.245
Arsenic3.6281.488
Lead.731.339
Zinc2.6621.096
Ammonia (as N)0.0000.000

(c) Subpart M—Kettle Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from refining
Antimony.087.039
Arsenic.063.026
Lead.013.006
Zinc.046.019
Ammonia (as N).000.000

(d) Subpart M—Lead Paste Desulfurization.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead processed through desulfurization
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(e) Subpart M—Casting Contact Cooling.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead cast
Antimony.042.019
Arsenic.031.013
Lead.006.003
Zinc.022.009
Ammonia (as N).000.000

(f) Subpart M—Truck Wash.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.041.018
Arsenic.029.012
Lead.006.003
Zinc.021.009
Ammonia (as N).000.000

(g) Subpart M—Facility Washdown.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(h) Subpart M—Battery Case Classification.

BAT Effluent Limitations

Pollutant pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(i) Subpart M—Employee Handwash.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.052.023
Arsenic.038.015
Lead.008.004
Zinc.028.011
Ammonia (as N).000.000

(j) Subpart M—Employee Respirator Wash.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.085.038
Arsenic.061.025
Lead.012.006
Zinc.045.018
Ammonia (as N).000.000

(k) Subpart M—Laundering of Uniforms.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.247.110
Arsenic.178.073
Lead.036.017
Zinc.131.054
Ammonia (as N).000.000
§ 421.134 - Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Subpart M—Battery Cracking.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony1.299.579
Arsenic.936.384
Lead.189.087
Zinc.687.283
Ammonia (as N).000.000
Total suspended solids10.1008.076
pH( 1)( 1)

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

(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony5.0382.245
Arsenic3.6281.488
Lead.731.339
Zinc2.6621.096
Ammonia (as N)0.0000.000
Total suspended solids39.15031.320
pH( 1)( 1)

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

(c) Subpart M—Kettle Wet Air Pollution Control.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from refining
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000
Total suspended solids.000.000
pH( 1)( 1)

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

(d) Subpart M—Lead Paste Desulfurization.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead processed through desulfurization
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000
Total suspended solids.000.000
pH( 1)( 1)

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

(e) Subpart M—Casting Contact Cooling.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead cast
Antimony.042.019
Arsenic.031.013
Lead.006.003
Zinc.022.009
Ammonia (as N).000.000
Total suspended solids.330.264
pH( 1)( 1)

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

(f) Subpart M—Truck Wash.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.041.018
Arsenic.029.012
Lead.006.003
Zinc.021.009
Ammonia (as N).000.000
Total suspended solids.315.252
pH( 1)( 1)

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

(g) Subpart M—Facility Washdown.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000
Total suspended solids.000.000
pH( 1)( 1)

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

(h) Subpart M—Battery Case Classification.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000
Total suspended solids.000.000
pH( 1)( 1)

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

(i) Subpart M—Employee Handwash.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.052.023
Arsenic.038.015
Lead.008.004
Zinc.028.011
Ammonia (as N).000.000
Total suspended solids.405.324
pH( 1)( 1)

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

(j) Subpart M—Employee Respirator Wash.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.085.038
Arsenic.061.025
Lead.012.006
Zinc.045.018
Ammonia (as N).000.000
Total suspended solids.660.528
pH( 1)( 1)

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

(k) Subpart M—Laundering of Uniforms.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.247.110
Arsenic.178.073
Lead.036.017
Zinc.131.054
Ammonia (as N).000.000
Total suspended solids1.9201.536
pH( 1)( 1)

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

[49 FR 8826, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984]
§ 421.135 - 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 secondary lead process wastewater introduced into a POTW shall not exceed the following values:

(a) Subpart M—Battery Cracking.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony1.299.579
Arsenic.936.384
Lead.189.087
Zinc.687.283
Ammonia (as N).000.000

(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony5.0382.245
Arsenic3.6281.488
Lead.731.339
Zinc2.6621.096
Ammonia (as N).000.000

(c) Subpart M—Kettle Wet Air Pollution Control.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from refining
Antimony.087.039
Arsenic.063.026
Lead.013.006
Zinc.046.019
Ammonia (as N).000.000

(d) Subpart M—Lead Paste Desulfurization.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead processed through desulfurization
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(e) Subpart M—Casting Contact Cooling.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead cast
Animony.042.019
Arsenic.031.013
Lead.006.003
Zinc.022.009
Ammonia (as N).000.000

(f) Subpart M—Truck Wash.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.041.018
Arsenic.029.012
Lead.006.003
Zinc.021.009
Ammonia (as N).000.000

(g) Subpart M—Facility Washdown.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(h) Subpart M—Battery Case Classification.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(i) Subpart M—Employee Handwash.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.052.023
Arsenic.038.015
Lead.008.004
Zinc.028.011
Ammonia (as N).000.000

(j) Subpart M—Employee Respirator Wash.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.085.038
Arsenic.061.025
Lead.012.006
Zinc.045.018
Ammonia (as N).000.000

(k) Subpart M—Laundering of Uniforms.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.247.110
Arsenic.178.073
Lead.036.017
Zinc.131.054
Ammonia (as N).000.000
§ 421.136 - Pretreatment standards for new sources.

Except as provided in 40 CFR 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 wastewater pollutants in secondary lead process wastewater introduced into a POTW shall not exceed the following values:

(a) Subpart M—Battery Cracking.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony1.299.579
Arsenic.936.384
Lead.189.087
Zinc.687.283
Ammonia (as N).000.000

(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony5.0382.245
Arsenic3.6281.488
Lead.731.339
Zinc2.6621.096
Ammonia (as N).000.000

(c) Subpart M—Kettle Wet Air Pollution Control.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from refining
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(d) Subpart M—Lead Paste Desulfurization.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead processed through desulfurization
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(e) Subpart M—Casting Contact Cooling.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead cast
Antimony.042.019
Arsenic.031.013
Lead.006.003
Zinc.022.009
Ammonia (as N).000.000

(f) Subpart M—Truck Wash.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.041.018
Arsenic.029.012
Lead.006.003
Zinc.021.009
Ammonia (as N).000.000

(g) Subpart M—Facility Washdown.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(h) Subpart M—Battery Case Classification.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead scrap produced
Antimony.000.000
Arsenic.000.000
Lead.000.000
Zinc.000.000
Ammonia (as N).000.000

(i) Subpart M—Employee Handwash.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.052.023
Arsenic.038.015
Lead.008.004
Zinc.028.011
Ammonia (as N).000.000

(j) Subpart M—Employee Respirator Wash.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.085.038
Arsenic.061.025
Lead.012.006
Zinc.045.018
Ammonia (as N).000.000

(k) Subpart M—Laundering of Uniforms.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of lead produced from smelting
Antimony.247.110
Arsenic.178.073
Lead.036.017
Zinc.131.054
Ammonia (as N).000.000
§ 421.137 - [Reserved]
authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 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) and the Water Quality Act of 1987 (the “Act”); 33 U.S.C. 1311,1314,c,e,and, 1316 (b) andc, 1317 (b) andc,1318; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4
source: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.
cite as: 40 CFR 421.131