Except as provided in 40 CFR 125.30-32, 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 Effluent Limitations--Oil and Grease
[In milligrams per liter]------------------------------------------------------------------------
Average of
values for Residual
Maximum 30 chlorine
Pollutant parameter waste source for any 1 consecutive minimum
day days shall for any 1
not exceed day------------------------------------------------------------------------Produced water....................... 72 48 NADeck drainage........................ (\1\) (\1\) NAWater-based:
Drilling fluids.................... (\1\) (\1\) NA
Drill Cuttings..................... (\1\) (\1\) NANon-aqueous:
Drilling fluids.................... No No NA
discharge discharge
Drill Cuttings..................... (\1\) (\1\) NAWell treatment fluids................ (\1\) (\1\) NASanitary:
M10................................ NA NA \2\ 1
M9IM \3\........................... NA NA NADomestic............................. NA NA NA------------------------------------------------------------------------\1\ No discharge of free oil. See Sec. 435.11(x).\2\ Minimum of 1 mg/l and maintained as close to this concentration as
possible.\3\ There shall be no floating solids as a result of the discharge of
these wastes. [58 FR 12504, Apr. 13, 1979, as amended at 66 FR 6897, Jan. 22, 2001; 77 FR 29836, May 18, 2012]