40 CFR 471.82 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

View all text of Subpart H [§ 471.80 - § 471.86]

§ 471.82 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent neat oils—subpart H—BAT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions		Chromium	0.0005	0.0002	Copper	0.002	0.0009	Cyanide	0.0003	0.0001	Zinc	0.002	0.0006

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water		Chromium	0.020	0.009	Copper	0.069	0.033	Cyanide	0.011	0.004	Zinc	0.055	0.023

(d) Drawing spent emulsions.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions		Chromium	0.002	0.0009	Copper	0.008	0.004	Cyanide	0.001	0.0005	Zinc	0.006	0.003

(e) Direct chill casting contact cooling water.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method		Chromium	0.019	0.008	Copper	0.065	0.031	Cyanide	0.010	0.004	Zinc	0.052	0.021

(f) Stationary casting contact cooling water—subpart H—BAT. There shall be no discharge of process wastewater pollutants.

(g) Heat treatment contact cooling water.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc heat treated		Chromium	0.029	0.012	Copper	0.098	0.047	Cyanide	0.016	0.006	Zinc	0.078	0.032

(h) Surface treatment spent baths.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc surface treated		Chromium	0.033	0.014	Copper	0.114	0.054	Cyanide	0.018	0.007	Zinc	0.091	0.038

(i) Surface treatment rinse.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc surface treated		Chromium	0.133	0.054	Copper	0.457	0.219	Cyanide	0.072	0.029	Zinc	0.365	0.151

(j) Alkaline cleaning spent baths.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned		Chromium	0.002	0.0006	Copper	0.005	0.002	Cyanide	0.0007	0.0003	Zinc	0.004	0.002

(k) Alkaline cleaning rinse.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned		Chromium	0.626	0.254	Copper	2.17	1.03	Cyanide	0.338	0.135	Zinc	1.73	0.710

(l) Sawing or grinding spent emulsions.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions		Chromium	0.009	0.004	Copper	0.031	0.015	Cyanide	0.005	0.002	Zinc	0.025	0.010

(m) Electrocoating rinse.

Subpart H—BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of zinc electrocoated		Chromium	0.085	0.035	Copper	0.293	0.140	Cyanide	0.046	0.019	Zinc	0.234	0.096

(n) Degreasing spent solvents—subpart H—BAT. There shall be no discharge or process wastewater pollutants.

[50 FR 34270, Aug. 23, 1985; 51 FR 2888, Jan. 22, 1986]