40 CFR 421.294 - Standards of performance for new sources.

View all text of Subpart AA [§ 421.290 - § 421.297]

§ 421.294 - Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Tin smelter SO2 scrubber.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of crude tapped tin produced		Arsenic	12.790	5.703	Lead	2.575	1.196	Iron	11.040	5.611	Tin	3.495	2.024	Total suspended solids	138.000	110.400	pH	( 1)	( 1)

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

(b) Dealuminizing rinse.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of dealuminized scrap produced		Lead	0.010	0.005	Cyanide (total)	0.007	0.003	Fluoride	1.225	0.697	Tin	0.013	0.008	Total suspended solids	0.525	0.420	pH	( 1)	( 1)

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

(c) Tin mud acid neutralization filtrate.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of neutralized dewatered tin mud produced		Lead	1.413	0.656	Cyanide (total)	1.009	0.404	Fluoride	176.600	100.400	Tin	1.918	1.110	Total suspended solids	75.710	60.560	pH	( 1)	( 1)

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

(d) Tin hydroxide wash.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tin hydroxide washed		Lead	3.347	1.554	Cyanide (total)	2.391	0.956	Fluoride	418.400	237.900	Tin	4.542	2.630	Total suspended solids	179.300	143.400	pH	( 1)	( 1)

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

(e) Spent electrowinning solution from new scrap.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of cathode tin produced		Lead	4.704	2.184	Cyanide (total)	3.360	1.344	Fluoride	588.000	334.300	Tin	6.384	3.696	Total suspended solids	252.000	201.600	pH	( 1)	( 1)

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

(f) Spent electrowinning solution from municipal solid waste.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of MSW scrap used as raw material		Lead	0.033	0.015	Cyanide (total)	0.024	0.010	Fluoride	4.165	2.368	Tin	0.045	0.026	Total suspended solids	1.785	1.428	pH	( 1)	( 1)

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

(g) Tin hydroxide supernatant from scrap.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tin metal recovered from scrap		Lead	15.580	7.233	Cyanide (total)	11.130	4.451	Fluoride	1,947.000	1,107.000	Tin	21.140	12.240	Total suspended solids	834.600	667.700	pH	( 1)	( 1)

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

(h) Tin hydroxide supernatant from plating solutions and sludges.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tin metal recovered from plating solutions and sludges		Lead	32.20	14.95	Cyanide (total)	23.00	9.20	Fluoride	4,025.00	2,289.00	Tin	43.70	25.30	Total suspended solids	1,725.00	1,380.00	pH	( 1)	( 1)

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

(i) Tin hydroxide filtrate.

NSPS for the Secondary Tin Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of tin metal produced		Lead	7.012	3.256	Cyanide (total)	5.009	2.004	Fluoride	876.500	498.400	Tin	9.517	5.510	Total suspended solids	375.700	300.500	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 421.294