CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS (Parts 400–471) > PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY > SUBPART M—Secondary Lead Subcategory (§421.130 to §421.137) > 421.135—Pretreatment standards for existing sources.

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
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.
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 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.
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