e-CFR banner

Home
gpo.gov
govinfo.gov

e-CFR Navigation Aids

Browse

Simple Search

Advanced Search

 — Boolean

 — Proximity

 

Search History

Search Tips

Corrections

Latest Updates

User Info

FAQs

Agency List

Incorporation By Reference

eCFR logo

Related Resources

 

Electronic Code of Federal Regulations

e-CFR data is current as of December 5, 2019

Title 40Chapter ISubchapter NPart 435Subpart A → §435.14


Title 40: Protection of Environment
PART 435—OIL AND GAS EXTRACTION POINT SOURCE CATEGORY
Subpart A—Offshore Subcategory


§435.14   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).

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

Waste sourcePollutant parameterBCT effluent limitation
Produced waterOil & greaseThe 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 3 miles from shoreNo discharge.1
(B) For facilities located beyond 3 miles from shore:
Water-based drilling fluids and associated drill cuttingsFree OilNo discharge.2
Non-aqueous drilling fluidsNo discharge.
Drill cuttings associated with non-aqueous drilling fluidsFree OilNo discharge.2
Well treatment, completion and workover fluidsFree oilNo discharge.2
Deck drainageFree oilNo discharge.3
Produced sandNo discharge.
Sanitary M10Residual chlorineMinimum of 1 mg/l and maintained as close to this concentration as possible.
Sanitary M91MFloating solidsNo discharge.
Domestic WasteFloating solidsNo discharge.
   All other domestic wasteSee 33 CFR part 151.

1All Alaskan facilities are subject to the drilling fluids and drill cuttings discharge limitations for facilities located more than 3 miles offshore.

2As determined by the static sheen test. See §435.11(hh).

3As 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]

Need assistance?