40 CFR 466.33 - New source performance standards.

Regulations last checked for updates: May 02, 2025

Title 40 - Protection of Environment last revised: Nov 02, 2025

View all text of Subpart C [§ 466.30 - § 466.35]

§ 466.33 - New source performance standards.

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

Subpart C—NSPS

Pollutant or pollutant property	Maximum for any 1 day		Maximum for monthly average
Pollutant or pollutant property	Metal preparation	Coating operation	Metal preparation	Coating operation
	Metric units—mg/m ² of area processed or coated
Chromium	3.60	0.47	1.46	0.19
Lead	0.97	0.13	0.88	0.11
Nickel	5.35	0.69	3.60	0.47
Zinc	9.92	1.29	4.09	0.53
Aluminum	29.46	3.82	12.06	1.56
Iron	11.96	1.55	6.13	0.79
Oil and grease	97.24	12.60	97.24	12.60
TSS	145.86	18.91	116.69	15.12
pH	( ¹)	( ¹)	( ¹)	( ¹)
	English units—pounds per 1 million ft ² of area processed or coated
Chromium	0.74	0.10	0.30	0.04
Lead	0.20	0.03	0.18	0.20
Nickel	1.10	0.14	0.74	0.10
Zinc	2.03	0.27	0.84	0.11
Aluminum	6.03	0.78	2.47	0.32
Iron	2.45	0.32	1.26	0.16
Oil and grease	19.92	2.58	19.92	2.58
TSS	29.88	3.87	23.90	3.10
pH	( ¹)	( ¹)	( ¹)	( ¹)

¹ Within the range 7.5 to 10.0 at all times.

[47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36544, Sept. 6, 1985]

authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 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) (the “Act”); 33 U.S.C. 1311,1314,c,e, 1316 (b) andc, 1317 (b) andc,and; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217

source: 47 FR 53184, Nov. 24, 1982, unless otherwise noted.

cite as: 40 CFR 466.33