CFR / Title 40 / Part 415 / Sec. 415.302 Effluent limitations guidelines representing the degree 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------------------------------------------------------------------------

BPT limitations

-------------------------

Average of

daily

Pollutant or pollutant property Maximum for values for

any 1 day 30

consecutive

days------------------------------------------------------------------------

Kg/kkg (or pounds per

1,000 lb) of product

--------------TSS........................................... 0.56 0.28pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within 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------------------------------------------------------------------------