[Code of Federal Regulations]
[Title 40, Volume 26]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR420.43]

[Page 406]
 
                TITLE 40-PROTECTION OF ENVIRONMENT
 
      CHAPTER I-ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 420-IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY--Table of Contents
 
                Subpart D-Steelmaking Subcategory
 
Sec. 420.43  Effluent limitations 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.
    (a) Electric arc furnace steelmaking-semi-wet. No discharge 
of process wastewater pollutants to navigable waters.
    (b) Basic oxygen furnace steelmaking-wet-suppressed 
combustion.

                                Subpart D
------------------------------------------------------------------------
                                                       BAT effluent
                                                       limitations
                                                ------------------------
                                                             Average of
        Pollutant or pollutant property           Maximum   daily values
                                                 for any 1     for 30
                                                    day      consecutive
                                                                days
------------------------------------------------------------------------
                                                    Kg/kkg (pounds per
                                                   1,000 lb) of product

                                                ------------
Lead...........................................   0.000188     0.0000626
Zinc...........................................   0.000282     0.0000939
------------------------------------------------------------------------

    (c) Basic oxygen furnace steelmaking-wet open combustion; and 
electric arc furnace steelmaking-wet.

                                Subpart D
------------------------------------------------------------------------
                                                       BAT effluent
                                                        limitations
                                                 -----------------------
                                                              Average of
         Pollutant or pollutant property                        daily
                                                   Maximum    values for
                                                  for any 1       30
                                                     day     consecutive
                                                                 days
------------------------------------------------------------------------
                                                    Kg/kkg (pounds per
                                                   1,000 lb) of product

                                                 ------------
Lead............................................   0.000413    0.000138
Zinc............................................   0.000620    0.000207
------------------------------------------------------------------------

    (d) Basic oxygen furnace steelmaking-semi-wet.
    (1) No discharge of process wastewater pollutants to navigable 
waters.
    (2) If the permittee demonstrates to the satisfaction of the 
permitting authority that safety considerations prevent attainment of 
these limitations, the permitting authority may establish alternative 
limitations on a best professional judgment basis.

[47 FR 23284, May 27, 1982, as amended at 67 FR 64267, Oct. 17, 2002]