40 C.F.R. § 421.233

Current through May 31, 2024
Section 421.233 - 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) Raw material dust control.

BAT Limitations for the Primary Nickel and Cobalt Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of copper, nickel, and cobalt in the crushed raw material
Copper0.0990.047
Nickel0.0420.028
Ammonia (as N)10.2604.512
Cobalt0.0110.005

(b) Nickel wash water.

BAT Limitations for the Primary Nickel and Cobalt Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of nickel powder washed
Copper0.0430.021
Nickel0.0190.013
Ammonia (as N)4.5151.985
Cobalt0.0050.002

(c) Nickel reduction decant.

BAT Limitations for the Primary Nickel and Cobalt Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of nickel produced
Copper16.2507.744
Nickel6.9824.697
Ammonia (as N)1,692.000743.900
Cobalt1.7770.889

(d) Cobalt reduction decant.

BAT Limitations for the Primary Nickel and Cobalt Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cobalt produced
Copper27.39013.050
Nickel11.7707.917
Ammonia (as N)2,852.0001,254.000
Cobalt2.9961.498

40 C.F.R. §421.233

50 FR 38359, Sept. 20, 1985; 50 FR 41144, Oct. 9, 1985