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Electronic Code of Federal Regulations

e-CFR data is current as of December 11, 2019

Title 40Chapter ISubchapter NPart 415 → Subpart F


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


Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)


Contents
§415.60   Applicability; description of the chlorine and sodium or potassium hydroxide production subcategory.
§415.61   Specialized definitions.
§415.62   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§415.63   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
§415.64   Pretreatment standards for existing sources (PSES).
§415.65   New source performance standards (NSPS).
§415.66   Pretreatment standards for new sources (PSNS).
§415.67   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).

§415.60   Applicability; description of the chlorine and sodium or potassium hydroxide production subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of chlorine and sodium or potassium hydroxide by the diaphragm cell process and by the mercury cell process.

§415.61   Specialized definitions.

For the purpose of this subpart:

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

(b) The term product shall mean chlorine.

(c) The term mercury shall mean the total mercury present in the process wastewater stream exiting the mercury treatment system.

(d) The term lead shall mean total lead.

§415.62   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 mercury cell 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 F—Chlor-Alkali Mercury Cells

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
TSS0.640.32
Mercury (T).00028.00014
pH(1)(1)

1Within the range of 6.0 to 9.0.

(b) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and using the diaphragm cell 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 F—Chlor-Alkali Diaphragm Cells

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
TSS1.10.51
Copper (T)0.0180.0070
Lead (T)0.0260.010
Nickel (T)0.0140.0056
pH(1)(1)

1Within the range 6.0 to 9.0.

§415.63   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 mercury cell 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):

Subpart F—Chlor-Alkali-Mercury Cells

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Kg/kkg (or pounds per 1,000 lb) of product
Mercury (T)0.000230.00010
Total Residual Chlorine0.00320.0019

(b) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and using the diaphragm cell process must achieve the following effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

Subpart F—Chlor-Alkali-Diaphragm Cells

Pollutant or pollutant propertyBAT effluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Kg/kkg (or pounds per 1,000 lb) of product
Copper (T)0.0120.0049
Lead (T)0.00590.0024
Nickel (T)0.00970.0037
Total Residual Chlorine0.0130.0079

§415.64   Pretreatment standards for existing sources (PSES).

(a) [Reserved]

(b) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart and using the diaphragm cell process, which introduces pollutants into a publicly owned treatment works, must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources (PSES):

Subpart F—Chlor-Alkali-Diaphragm Cells

Pollutant or pollutant propertyPSES effluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Milligrams per liter (mq/1)
Copper (T)2.10.80
Lead (T)2.91.1
Nickel (T)1.60.64

In cases when POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as an alternate: The limitations for Copper (T), Lead(T) and Nickel (T) are the same as specified in §415.62(b).

§415.65   New source performance standards (NSPS).

(a) Any new source subject to this subpart and using the mercury cell process must achieve the following new source performance standards (NSPS):

Subpart F—Chlor-Alkali-Mercury Cells

Pollutant or pollutant propertyNSPS limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Kq/kkg (or pounds per 1,000 lb) of product
TSS0.640.32
Mercury (T)0.000230.00010
Total Residual Chlorine0.00320.0019
pH(1)(1)

1Within the range 6.0 to 9.0.

(b) Any new source subject to this subpart and using the diaphragm cell process must achieve the following new source performance standards (NSPS):

Subpart F—Chlor-Alkali-Diaphragm Cells

Pollutant or pollutant propertyNSPS limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Kq/kkg (or pounds per 1,000 lb) of product
TSS1.10.51
Lead (T)0.00470.0019
Total Residual Chlorine0.0130.0079
pH(1)(1)

1Within the range 6.0 to 9.0.

§415.66   Pretreatment standards for new sources (PSNS).

(a) Except as provided in 40 CFR 403.7, any new source subject to this subpart and using the mercury cell process, 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):

Subpart F—Chlor-Alkali-Mercury Cells

Pollutant or pollutant propertyPSNS effluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Milligrams per liter
Mercury (T)0.110.048

In cases where POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as an alternate: The limitations for mercury (T) are the same as specified in §415.65(a).

(b) Except as provided in 40 CFR 403.7, any new source subject to this subpart and using the diaphragm cell process, which introduces pollutants into a publicly owned treatment works, must compy with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS):

Subpart F—Diaphragm Cells

Pollutant or pollutant propertyPSNS effluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Milligrams per liter (mg/1)
Lead(T)0.530.21

In cases where POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as an alternate: The limitations for Lead(T) are the same as specified in §415.65(b).

[47 FR 28278, June 29, 1982, as amended at 47 FR 55226, Dec. 8, 1982]

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

(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and using the mercury cell process must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT): The limitations are the same for TSS and pH as specified in §415.62(a).

(b) [Reserved]

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