40 CFR § 418.22 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

§ 418.22 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in §§ 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

Effluent characteristic Effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days shall not exceed -
Metric units (kilograms per 1,000 kg of product)
Ammonia (as N) 0.1875 0.0625
pH ( 1) ( 1)
English units (pounds per 1,000 lb of product)
Ammonia (as N) 0.1875 0.0625
pH ( 1) ( 1)

1 Within the range 6.0 to 9.0.

[39 FR 12836, Apr. 8, 1974, as amended at 40 FR 26275, June 23, 1975: 60 FR 33956, June 29, 1995]