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):
(a) There shall be no discharge of waste pollutants into navigable waters from any source (other than produced water) associated with production, field exploration, drilling, well completion, or well treatment (i.e., drilling muds, drill cuttings, and produced sands).
(b) Produced water discharges shall not exceed the following daily maximum limitation:
Effluent characteristics: Effluent limitation (mg/l).
Oil and Grease: 35.
[44 FR 22075, Apr. 13, 1979, as amended at 60 FR 33967, June 29, 1995]