40 CFR § 430.62 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

§ 430.62 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

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 practicable control technology currently available (BPT):

Subpart F

[BPT effluent limitations for ammonia base mills]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of product
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD5 8.0 4.0
TSS 10.0 5.0
pH ( 1) ( 1)

1 Within the range of 6.0 to 9.0 at all times.

Subpart F

[BPT effluent limitations for sodium base mills]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of product
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD5 8.7 4.35
TSS 11.0 5.5
pH ( 1) ( 1)

1 Within the range of 6.0 to 9.0 at all times.