Regulations last checked for updates: May 01, 2025
Title 40 - Protection of Environment last revised: Nov 01, 2025
§ 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
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of lead scrap produced
|
| Antimony | 1.932 | .862
|
| Arsenic | 1.407 | .579
|
| Lead | .283 | .135
|
| Zinc | .983 | .411
|
| Ammonia (as N) | .000 | .000
|
| Total suspended solids | 27.600 | 13.130
|
| pH | (
1) | (
1)
|
(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control
| 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 | 7.491 | 3.341
|
| Arsenic | 5.455 | 2.245
|
| Lead | 1.096 | .522
|
| Zinc | 3.811 | 1.592
|
| Ammonia (as N) | .000 | .000
|
| Total suspended solids | 107.000 | 50.900
|
| pH | (
1) | (
1)
|
(c) Subpart M—Kettle Wet Air Pollution Control
| 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 solids | 1.845 | .878
|
| pH | (
1) | (
1)
|
(d) Subpart M—Lead Paste Desulfurization
| 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)
|
(e) Subpart M—Casting Contact Cooling
| 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 solids | 9.061 | 4.310
|
| pH | (
1) | (
1)
|
(f) Subpart M—Truck Wash.
| 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)
|
(g) Subpart M—Facility Washdown
| 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)
|
(h) Subpart M—Battery Case Classification.
| 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)
|
(i) Subpart M—Employee Handwash.
| 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 solids | 1.107 | .527
|
| pH | (
1) | (
1)
|
(j) Subpart M—Employee Respirator Wash.
| 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 solids | 1.804 | .858
|
| pH | (
1) | (
1)
|
(k) Subpart M—Laundering of Uniforms.
| 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 solids | 5.248 | 2.496
|
| pH | (
1) | (
1)
|
§ 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.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of lead scrap produced
|
| Antimony | 1.299 | .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.
| 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 | 5.038 | 2.245
|
| Arsenic | 3.628 | 1.488
|
| Lead | .731 | .339
|
| Zinc | 2.662 | 1.096
|
| Ammonia (as N) | 0.000 | 0.000 |
(c) Subpart M—Kettle Wet Air Pollution Control.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of lead scrap produced
|
| Antimony | 1.299 | .579
|
| Arsenic | .936 | .384
|
| Lead | .189 | .087
|
| Zinc | .687 | .283
|
| Ammonia (as N) | .000 | .000
|
| Total suspended solids | 10.100 | 8.076
|
| pH | (
1) | (
1)
|
(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.
| 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 | 5.038 | 2.245
|
| Arsenic | 3.628 | 1.488
|
| Lead | .731 | .339
|
| Zinc | 2.662 | 1.096
|
| Ammonia (as N) | 0.000 | 0.000
|
| Total suspended solids | 39.150 | 31.320
|
| pH | (
1) | (
1)
|
(c) Subpart M—Kettle Wet Air Pollution Control.
| 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)
|
(d) Subpart M—Lead Paste Desulfurization.
| 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)
|
(e) Subpart M—Casting Contact Cooling.
| 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)
|
(f) Subpart M—Truck Wash.
| 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)
|
(g) Subpart M—Facility Washdown.
| 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)
|
(h) Subpart M—Battery Case Classification.
| 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)
|
(i) Subpart M—Employee Handwash.
| 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)
|
(j) Subpart M—Employee Respirator Wash.
| 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)
|
(k) Subpart M—Laundering of Uniforms.
| 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 solids | 1.920 | 1.536
|
| pH | (
1) | (
1)
|
§ 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.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of lead scrap produced
|
| Antimony | 1.299 | .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.
| 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 | 5.038 | 2.245
|
| Arsenic | 3.628 | 1.488
|
| Lead | .731 | .339
|
| Zinc | 2.662 | 1.096
|
| Ammonia (as N) | .000 | .000 |
(c) Subpart M—Kettle Wet Air Pollution Control.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of lead scrap produced
|
| Antimony | 1.299 | .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.
| 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 | 5.038 | 2.245
|
| Arsenic | 3.628 | 1.488
|
| Lead | .731 | .339
|
| Zinc | 2.662 | 1.096
|
| Ammonia (as N) | .000 | .000 |
(c) Subpart M—Kettle Wet Air Pollution Control.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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.
| 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) and
c, 1317 (b) and
c,
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