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Electronic Code of Federal Regulations

e-CFR data is current as of December 12, 2019

Title 40Chapter ISubchapter NPart 415Subpart AD → §415.302


Title 40: Protection of Environment
PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY
Subpart AD—Calcium Carbonate Production Subcategory


§415.302   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 milk of lime 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 AD—Calcium Carbonate Milk of Lime 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
TSS0.560.28
pH(1)(1)

1Within the range 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 recovery process from Solvay process wastes, 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 AD—Calcium Carbonate Solvay Recovery 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
TSS1.160.58
pH(1)(1)

1Within the range 6.0 to 9.0.

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