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

40 CFR 434.42

Citation40 CFR 434.42
CorpusDaily eCFR
Displayed edition2026-05-14
Last updated2026-05-14

§ 434.42 Effluent limitations guidelines 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 125.30-125.32, 40 CFR 401.17, and §§ 434.61 and 434.63 of this part, the following limitations establish the concentration or quality of pollutants which may be discharged by a point source subject to the provisions of this subpart after application of the best practicable control technology currently available:

BPT Effluent Limitations

Pollutant or pollutant propertyMaximum for any 1 dayAverage of daily values for 30 consecutive days
Concentration in mg/l
Iron, total7.03.5
TSS70.35.
pH(1)(1)
1 Within the range 6.0 to 9.0 at all times.