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Electronic Code of Federal Regulations

e-CFR data is current as of December 10, 2019

Title 40Chapter ISubchapter NPart 415 → Subpart AW


Title 40: Protection of Environment
PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY


Subpart AW—Oxygen and Nitrogen Production Subcategory


Contents
§415.490   Applicability; description of the oxygen and nitrogen production subcategory.
§415.491   Specialized definitions. [Reserved]
§415.492   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

§415.490   Applicability; description of the oxygen and nitrogen production subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of oxygen and nitrogen by air liquification.

§415.491   Specialized definitions. [Reserved]

§415.492   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 through 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):

Subpart AW—Oxygen and Nitrogen

Pollution or pollutant propertyBPT effluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Kg/kkg (or pounds per 1,000 lb) of product
Oil and grease0.00200.0010
pH(1)(1)

1Within the range 6.0 to 9.0.

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