Regulations last checked for updates: Oct 18, 2024

Title 40 - Protection of Environment last revised: Oct 16, 2024
§ 466.23 - New source performance standards.

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

(a) There shall be no discharge of process wastewater pollutants from metal preparation operations.

(b) The discharge of process wastewater pollutants from all porcelain enameling coating operations shall not exceed the values set forth below:

Subpart B—NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
Mg/m 2 (pounds per million ft 2) of area coated
Chromium0.47(0.10)0.19(0.04)
Lead0.13(0.03)0.11(0.02)
Nickel0.69(0.14)0.47(0.10)
Zinc1.29(0.27)0.53(0.11)
Aluminum3.82(0.78)1.56(0.32)
Iron1.55(0.32)0.79(0.16)
Oil and grease12.60(2.58)12.60(2.58)
TSS18.91(3.87)15.12(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 466.23