Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
§ 410.55 - New source performance standards (NSPS).

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

Simple Manufacturing Operations

Pollutant or pollutant property NSPS
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (or pounds per 1,000 lb) of product
BOD53.61.9
COD48.131.0
TSS13.25.9
Sulfide0.200.10
Phenols0.100.05
Total chromium0.100.05
pH( 1)( 1)

1 Within the range 6.0 to 9.0 at all times.

Note: Additional allocations for “commission finishers” are not available to new sources.

Complex Manufacturing Operations

Pollutant or pollutant property NSPS
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (or pounds per 1,000 lb) of product
BOD54.82.5
COD51.032.9
TSS12.25.4
Sulfide0.200.10
Phenols0.100.05
Total Chromium0.100.05
pH( 1−)( 1−)

1 Within the range 6.0 to 9.0 at all times.

Note: Additional allocations for “commission finishers” are not available to new sources.

Hosiery Products

Pollutant or pollutant property NSPS
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (or pounds per 1,000 lb) of product
BOD52.31.2
COD30.719.8
TSS8.43.7
Sulfide0.200.10
Phenols0.100.05
Total Chromium0.100.05
pH( 1−)( 1−)

1 Within the range 6.0 to 9.0 at all times.

Note: Additional allocations for “commission finishers” are not available to new sources.

authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 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,and, 1316 (b) andc, 1317 (b) andc,and; 86 Stat. 186
source: 47 FR 38819, Sept. 2, 1982, unless otherwise noted.
cite as: 40 CFR 410.55