[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: 40CFR424.25]



[Page 658]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 424_FERROALLOY MANUFACTURING POINT SOURCE CATEGORY--Table of Contents

 

 Subpart B_Covered Electric Furnaces and Other Smelting Operations With 

              Wet Air Pollution Control Devices Subcategory

 

Sec.  424.25  Standards of performance for new sources.



    The following standards of performance establish the quantity or 

quality of pollutants or pollutant properties, controlled by this 

section, which may be discharged by a new source subject to the 

provisions of this subpart:



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

                                                Effluent limitations

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

                                                        Average of daily

          Effluent characteristic             Maximum     values for 30

                                             for any 1  consecutive days

                                                day         shall not

                                                            exceed--

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

                                                Metric units (kg/Mwh)

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

TSS.......................................       0.032             0.016

Chromium total............................        .001             .0005

Chromium VI...............................       .0001            .00005

Manganese total...........................        .011              .005

Cyanide total.............................       .0005             .0003

Phenols...................................       .0004             .0002

pH........................................       (\1\)             (\1\)

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

                                               English units (lb/Mwh)

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

TSS.......................................        .071              .035

Chromium total............................        .002             .0012

Chromium VI...............................       .0002             .0001

Manganese total...........................        .023              .012

Cyanide total.............................        .001             .0006

Phenols...................................       .0009             .0005

pH........................................       (\1\)             (\1\)

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

\1\ Within the range 6.0 to 9.0.





Provided, however, That for nonelectric furnace smelting processes, the 

units of effluent limitations set forth in this section shall be read as 

``kg/kkg of product'' rather than ``kg/Mwh,'' and the limitations 

(except for pH) shall be 3.3 times those listed in the table in this 

section (or, for English units, ``lb/ton of product'' rather than ``lb/

Mwh,'' and the limitations (except for pH) shall be three times those 

listed in the table).



[39 FR 6809, Feb. 22, 1974, as amended at 39 FR 17841, May 21, 1974]