Statutes, codes, and regulations
Code of Federal Regulations
Title 40 - PROTECTION OF ENVIRONMENTChapter I - ENVIRONMENTAL PROTECTION AGENCYSubchapter N - EFFLUENT GUIDELINES AND STANDARDSPart 421 - NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
Subpart M - SECONDARY LEAD SUBCATEGORY
Section 421.135 - Pretreatment standards for existing sources

40 C.F.R. § 421.135

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Current through September 30, 2024
Section 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

40 C.F.R. §421.135