Regulations last checked for updates: Nov 24, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024
§ 420.117 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology.

(a) Batch.

Subpart K

Pollutant or pollutant property BCT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS0.07300.0313
O&G0.03130.0104
pH( 1)( 1)

1 Within the range of 6.0 to 9.0.

(b) Continuous.

Subpart K

Pollutant or pollutant property BCT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS0.1020.0438
O&G0.04380.0146
pH( 1)( 1)

1 Within the range of 6.0 to 9.0.

source: 47 FR 23284, May 27, 1982, unless otherwise noted.
cite as: 40 CFR 420.117