[Code of Federal Regulations]

[Title 40, Volume 28]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR415.23]



[Page 251-252]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 415_INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY--Table 

of Contents

 

            Subpart B_Aluminum Sulfate Production Subcategory

 

Sec.  415.23  Effluent limitations guidelines representing the degree of 

effluent reduction attainable by the application of the best available 

technology economically achievable (BAT).



    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 available technology economically achievable 

(BAT):

    (a) Subject to the provisions of paragraph (b) of this section there 

shall be no discharge of process wastewater pollutants into navigable 

waters.

    (b) A process wastewater impoundment which is designed, constructed, 

and operated so as to contain the precipitation from the 25-year, 24-

hour



[[Page 252]]



rainfall event as established by the National Climatic Center, National 

Oceanic and Atmospheric Administration for the area in which such 

impoundment is located may discharge that volume of process wastewater 

which is equivalent to the volume of precipitation that falls within the 

impoundment in excess of that attributable to the 25-year, 24-hour 

rainfall event, when such event occurs.