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 conventional pollutant control technology (BCT):
BCT Effluent Limitations------------------------------------------------------------------------
Pollutant BCT effluent
Waste source parameter limitation------------------------------------------------------------------------Produced water................... Oil & grease.... The maximum for any
one day shall not
exceed 72 mg/l;
the average of
values for 30
consecutive days
shall not exceed
48 mg/l.Drilling fluids and drill
cuttings:(A) For facilities located within ................ No discharge. \1\
3 miles from shore.(B) For facilities located beyond
3 miles from shore:.
Water-based drilling fluids Free Oil........ No discharge. \2\
and associated drill
cuttings.
Non-aqueous drilling fluids.. ................ No discharge.
Drill cuttings associated Free Oil........ No discharge. \2\
with non-aqueous drilling
fluids.Well treatment, completion and Free oil........ No discharge. \2\
workover fluids.Deck drainage.................... Free oil........ No discharge. \3\Produced sand.................... ................ No discharge.Sanitary M10..................... Residual Minimum of 1 mg/l
chlorine. and maintained as
close to this
concentration as
possible.Sanitary M91M.................... Floating solids. No discharge.Domestic Waste................... Floating solids. No discharge.
All other See 33 CFR part
domestic waste. 151.------------------------------------------------------------------------\1\ All Alaskan facilities are subject to the drilling fluids and drill
cuttings discharge limitations for facilities located more than 3
miles offshore.\2\ As determined by the static sheen test. See Sec. 435.11(hh).\3\ As determined by the presence of a film or sheen upon or a
discoloration of the surface of the receiving water (visual sheen). [58 FR 12504, Apr. 13, 1979, as amended at 66 FR 6899, Jan. 22, 2001; 77 FR 29836, May 18, 2012]