40 CFR 421.332 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

View all text of Subpart AE [§ 421.330 - § 421.337]

§ 421.332 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

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 practicable technology currently available:

(a) Sand drying wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced		Chromium (total)	0.250	0.102	Cyanide (total)	0.165	0.068	Lead	0.239	0.114	Nickel	1.091	0.721	Ammonia (as N)	75.710	33.280	Total suspended solids	23.290	11.080	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Sand chlorination off-gas wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zironium dioxide and hafnium dioxide produced		Chromium (total)	19.130	7.825	Cyanide (total)	12.610	5.216	Lead	18.260	8.694	Nickel	83.460	55.210	Ammonia (as N)	5,795.000	2,547.000	Total suspended solids	1,782.000	847.700	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(c) Sand chlorination area-vent wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced		Chromium (total)	3.751	1.534	Cyanide (total)	2.472	1.023	Lead	3.580	1.705	Nickel	16.370	10.830	Ammonia (as N)	1,136.000	449.500	Total suspended solids	349.500	166.200	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(d) SiCl4 purification wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced		Chromium (total)	3.299	1.350	Cyanide (total)	2.174	0.900	Lead	3.149	1.500	Nickel	14.400	9.522	Ammonia (as N)	999.500	439.400	Total suspended solids	307.400	146.200	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(e) Feed makeup wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced		Chromium (total)	2.501	1.023	Cyanide (total)	1.648	0.682	Lead	2.387	1.137	Nickel	10.910	7.217	Ammonia (as N)	757.500	333.000	Total suspended solids	233.000	110.800	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(f) Iron extraction (MIBK) steam stripper bottoms.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced		Chromium (total)	0.987	0.404	Cyanide (total)	0.651	0.269	Lead	0.942	0.449	Nickel	4.308	2.850	Ammonia (as N)	299.100	131.500	Total suspended solids	92.000	43.760	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(g) Zirconium filtrate.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced		Chromium (total)	17.070	6.982	Cyanide (total)	11.250	4.655	Lead	16.290	7.758	Nickel	74.480	49.260	Ammonia (as N)	5,171.000	2,273.000	Total suspended solids	1,590.000	756.400	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(h) Hafnium filtrate.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced		Chromium (total)	0.000	0.000	Cyanide (total)	0.000	0.000	Lead	0.000	0.000	Nickel	0.000	0.000	Ammonia (as N)	0.000	0.000	Total suspended solids	0.000	0.000	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(i) Calcining caustic wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced		Chromium (total)	3.959	1.619	Cyanide (total)	2.609	1.080	Lead	3.779	1.799	Nickel	17.270	11.430	Ammonia (as N)	1,199.000	527.200	Total suspended solids	368.900	175.400	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(j) Pure chlorination wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium and hafnium produced		Chromium (total)	16.860	6.897	Cyanide (total)	11.110	4.598	Lead	16.090	7.663	Nickel	73.570	48.660	Ammonia (as N)	5,108.000	2,245.000	Total suspended solids	1,571.000	747.200	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(k) Reduction area-vent wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium and hafnium produced		Chromium (total)	1.622	0.663	Cyanide (total)	1.069	0.442	Lead	1.548	0.737	Nickel	7.077	4.681	Ammonia (as N)	491.300	216.000	Total suspended solids	151.100	71.880	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(l) Magnesium recovery off-gas wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium and hafnium produced		Chromium (total)	9.123	3.732	Cyanide (total)	6.013	2.488	Lead	8.708	4.147	Nickel	39.810	26.330	Ammonia (as N)	2,764.000	1,215.000	Total suspended solids	850.100	404.300	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(m) Magnesium recovery area-vent wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium and hafnium produced		Chromium (total)	5.068	2.073	Cyanide (total)	3.340	1.382	Lead	4.838	2.304	Nickel	22.110	14.630	Ammonia (as N)	1,535.000	675.000	Total suspended solids	472.200	224.600	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0. .

(n) Zirconium chip crushing wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium and hafnium produced		Chromium (total)	0.000	0.000	Cyanide (total)	0.000	0.000	Lead	0.000	0.000	Nickel	0.000	0.000	Ammonia (as N)	0.000	0.000	Total suspended solids	0.000	0.000	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(o) Acid leachate from zirconium metal production.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of pure zirconium produced		Chromium (total)	12.970	5.304	Cyanide (total-	8.545	3.536	Lead	12.380	5.893	Nickel	56.570	37.420	Ammonia (as N)	3,928.000	1,727.000	Total suspended solids	1,208.000	574.600	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(p) Acid leachate from zirconium alloy production.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium contained in alloys produced		Chromium (total)	6.939	2.839	Cyanide (total)	4.574	1.893	Lead	6.624	3.154	Nickel	30.280	20.030	Ammonia (as N)	2,102.000	924.200	Total suspended solids	646.600	307.600	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(q) Leaching rinse water from zirconium metal production.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium produced		Chromium (total)	25.930	10.610	Cyanide (total)	17.090	7.072	Lead	24.750	11.790	Nickel	113.200	74.840	Ammonia (as N)	7,856.000	3,453.000	Total suspended solids	2,416.000	1,149.000	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0.

(r) Leaching rinse water from zirconium alloy production.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of zirconium in alloys produced		Chromium (total)	0.347	0.142	Cyanide (total)	0.229	0.095	Lead	0.331	0.158	Nickel	1.515	1.002	Ammonia (as N)	105.200	46.240	Total suspended solids	32.350	15.390	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

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 421.332