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Electronic Code of Federal Regulations

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

Title 40Chapter ISubchapter NPart 435Subpart A → §435.12


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


§435.12   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

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]

Pollutant parameter waste sourceMaximum for any 1 dayAverage of values for 30 consecutive days shall not exceed Residual chlorine minimum for any 1 day
Produced water7248NA
Deck drainage(1)(1)NA
Water-based:
Drilling fluids(1)(1)NA
Drill Cuttings(1)(1)NA
Non-aqueous:
Drilling fluidsNo dischargeNo dischargeNA
Drill Cuttings(1)(1)NA
Well treatment fluids(1)(1)NA
Sanitary:
M10NANA21
M9IM3NANANA
DomesticNANANA

1No discharge of free oil. See §435.11(x).

2Minimum of 1 mg/l and maintained as close to this concentration as possible.

3There 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]

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