40 CFR 438.12 - Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
Except as provided at 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BPT. Discharges must remain within the pH range 6 to 9 and must not exceed the following:
|Regulated parameter||Maximum daily 1|
|2. O&G (as HEM)||46|
1 mg/L (ppm).