Regulations last checked for updates: May 19, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
§ 421.73 - 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 G—Sinter Plant Materials Handling Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of sinter production
Lead100.80046.800
Zinc367.200151.200

(b) Subpart G—Blast Furnace Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of blast furnace lead bullion produced
Lead.000.000
Zinc.000.000

(c) Subpart G—Blast Furnace Slag Granulation.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of blast furnace lead bullion produced
Lead.000.000
Zinc.000.000

(d) Subpart G—Dross Reverberatory Slag Granulation.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of slag, speiss, or matte granulated
Lead1,612.000748.400
Zinc5,872.0002,418.000

(e) Subpart G—Dross Reverberatory Furnace Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of dross reverberatory furnace production
Lead.000.000
Zinc.000.000

(f) Subpart G—Zinc Fuming Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of blast furnance lead bullion produced
Lead.000.000
Zinc.000.000

(g) Subpart G—Hard Lead Refining Slag Granulation.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of hard lead produced
Lead.000.000
Zinc.000.000

(h) Subpart G—Hard Lead Refining Wet Air Pollution Control.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of hard lead produced
Lead.000.000
Zinc.000.000

(i) Subpart G—Facility Washdown.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of lead bullion produced
Lead.000.000
Zinc.000.000

(j) Subpart G—Employee Handwash.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of lead bullion produced
Lead.924.429
Zinc3.3661.386

(k) Subpart G—Respirator Wash.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of lead bullion produced
Lead1.484.689
Zinc5.4062.226

(l) Subpart G—Laundering of Uniforms.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of lead bullion produce
Lead4.3402.015
Zinc15.8106.510
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 421.73