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Electronic Code of Federal Regulations

e-CFR data is current as of December 4, 2019

Title 40Chapter ISubchapter NPart 415 → Subpart P


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


Subpart P—Sodium Chloride Production Subcategory


Contents
§415.160   Applicability; description of the sodium chloride production subcategory.
§415.161   Specialized definitions.
§415.162   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§415.163   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
§415.164   [Reserved]
§415.165   New source performance standards (NSPS).
§415.166   Pretreatment standards for new sources (PSNS).

§415.160   Applicability; description of the sodium chloride production subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of sodium chloride by the solution brine-mining process and by the solar evaporation process.

§415.161   Specialized definitions.

For the purpose of this subpart:

(a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.

(b) The term product shall mean sodium chloride.

(c) The term bitterns shall mean the saturated brine solution remaining after precipitation of sodium chloride in the solar evaporation process.

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

(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and using the solar evaporation process 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): There shall be no discharge of process wastewater pollutants to navigable waters, except that unused bitterns may be returned to the body of water from which the process brine solution was originally withdrawn, provided no additional pollutants are added to the bitterns during the production of sodium chloride.

(b) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and using the solution brine mining process 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 P—Sodium Chloride Brine Mining Process

Pollutant or pollutant propertyBPT limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Kg/kkg (or pounds per 1,000 lb.) of product
TSS0.340.17
pH(1)(1)

1Within the range of 6.0 to 9.0.

§415.163   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and using the solar evaporation process must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT): There shall be no discharge of process wastewater pollutants to navigable waters, except that unused bitterns may be returned to the body of water from which the process brine solution was originally withdrawn, provided no additional pollutants are added to the bitterns during the production of sodium chloride.

(b) [Reserved]

[47 FR 28278, June 29, 1982, as amended at 49 FR 33420, Aug. 22, 1984]

§415.164   [Reserved]

§415.165   New source performance standards (NSPS).

(a) Any new source subject to this subpart and using the solar evaporation process must achieve the following new source performance standards (NSPS): There shall be no discharge of process wastewater pollutants to navigable waters, except that unused bitterns may be returned to the body of water from which the process brine solution was originally withdrawn, provided no additional pollutants are added to the bitterns during the production of sodium chloride.

(b) Any new source subject to this subpart and using the solution brine-mining process must achieve the following new source performance standards (NSPS): There shall be no discharge of process wastewater pollutants to navigable waters.

§415.166   Pretreatment standards for new sources (PSNS).

Except as provided in §403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS): The limitations are the same as the new source performance standards specified in §415.165.

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