Except as provided in 40 CFR 125.30-125.32, 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]----------------------------------------------------------------------------------------------------------------
Residual
Average of values for 30 chlorine
Pollutant parameter waste source Maximum for any 1 day consecutive days shall not minimum for
exceed any 1 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 discharge................. No discharge................ NA
Drill Cuttings.................... (\1\)........................ (\1\)....................... NAWell treatment, workover, and (\1\)........................ (\1\)....................... NA
completion fluids.Sanitary:
M10............................... NA........................... NA.......................... \2\ 1
M9IM \3\.......................... NA........................... NA.......................... NA
Domestic \3\...................... NA........................... NA.......................... NA
Produced sand..................... Zero discharge............... Zero discharge.............. NA----------------------------------------------------------------------------------------------------------------\1\ No discharge of free oil. See Sec. 435.41(y).\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. [61 FR 66125, Dec. 16, 1996, as amended at 66 FR 6916, Jan. 22, 2001; 77 FR 29846, May 18, 2012]