40 CFR 421.313 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

View all text of Subpart AC [§ 421.310 - § 421.317]

§ 421.313 - 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) Tungsten detergent wash and rinse.

BAT Limitations for the Secondary Tungsten and Cobalt Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tungsten scrap washed		Copper	0.250	0.119	Nickel	0.107	0.072	Ammonia (as N)	25.990	11.430	Cobalt	0.538	0.236	Tungsten	0.679	0.302

(b) Tungsten leaching acid.

BAT Limitations for the Secondary Tungsten and Cobalt Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tungsten produced		Copper	3.291	1.569	Nickel	1.414	0.951	Ammonia (as N)	342.700	150.700	Cobalt	7.096	3.111	Tungsten	8.947	3.985

(c) Tungsten post-leaching wash and rinse.

BAT Limitations for the Secondary Tungsten and Cobalt Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tungsten produced		Copper	6.583	3.137	Nickel	2.829	1.903	Ammonia (as N)	685.600	301.400	Cobalt	14.194	6.223	Tungsten	17.900	7.972

(d) Synthetic scheelite filtrate.

BAT Limitations for the Secondary Tungsten and Cobalt Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of synthetic scheelite produced		Copper	21.330	10.170	Nickel	9.164	6.165	Ammonia (as N)	2,221.000	976.300	Cobalt	45.984	20.160	Tungsten	57.980	25.820

(e) Tungsten carbide leaching wet air pollution control.

BAT Limitations for the Secondary Tungsten and Cobalt Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tungsten carbide scrap leached		Copper	2.241	1.068	Nickel	0.963	0.648	Ammonia (as N)	233.400	102.600	Cobalt	4.833	2.119	Tungsten	6.093	2.714

(f) Tungsten carbide wash water.

BAT Limitations for the Secondary Tungsten and Cobalt Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tungsten carbide produced		Copper	10.670	5.083	Nickel	4.583	3.083	Ammonia (as N)	1,111.000	488.300	Cobalt	22.999	10.083	Tungsten	29.000	12.920

(g) Cobalt sludge leaching wet air pollution control.

BAT Limitations for the Secondary Tungsten 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 from cobalt sludge		Copper	45.80	21.83	Nickel	19.68	13.24	Ammonia (as N)	4,770.00	2,097.00	Cobalt	98.756	43.295	Tungsten	124.50	55.46

(h) Crystallization decant.

BAT Limitations for the Secondary Tungsten 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		Copper	53,310	25.410	Nickel	22.910	15.410	Ammonia (as N)	5,552.000	2,441.000	Cobalt	114.954	50.397	Tungsten	144.900	64.560

(i) Acid wash decant.

BAT Limitations for the Secondary Tungsten 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		Copper	24.400	11.630	Nickel	10.490	7.053	Ammonia (as N)	2,541.000	1,117.000	Cobalt	52.611	23.065	Tungsten	66.340	29.550

(j) Cobalt hydroxide filtrate.

BAT Limitations for the Secondary Tungsten 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		Copper	72.510	34.560	Nickel	31.160	20.960	Ammonia (as N)	7,551.000	3,320.000	Cobalt	156.346	68.543	Tungsten	197.100	87.800

(k) Cobalt hydroxide filter cake wash.

BAT Limitations for the Secondary Tungsten 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		Copper	139.600	66.510	Nickel	59.970	40.340	Ammonia (as N)	14,530.000	6,389.000	Cobalt	300.094	131.932	Tungsten	379.400	169.000

[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31714, 31715, Aug. 3, 1990]

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 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 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 421.313