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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 421.134: Standards of performance for new sources.

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
  4. PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
  5. Subpart M—Secondary Lead Subcategory

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

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)

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

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)

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 solids 1.920 1.536

pH (1) (1)

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

Collected 2026-08-27T02:26:04Z. Source file · JSON

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