[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: 40CFR424.72]



[Page 663-664]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

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

 

               Subpart G_Electrolytic Chromium Subcategory

 

Sec.  424.72  Effluent limitations guidelines representing the degree of 

effluent reduction attainable by the application of the best practicable 

control technology currently available.



    Except as provided in Sec. Sec.  125.30 through 125.32, any existing 

point source subject to this subpart shall achieve the following 

effluent limitations representing the degree of effluent reduction 

attainable by the application of the best practicable control technology 

currently available (BPT):



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

                                                Effluent limitations

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

                                                        Average of daily

          Effluent characteristic             Maximum     values for 30

                                             for any 1  consecutive days

                                                day         shall not

                                                            exceed--

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

                                               Metric units (kg/kkg of

                                                      product)

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

TSS.......................................       5.276             2.638

Manganese.................................       2.111             1.055

Chromium..................................       0.106             0.053

Ammonia-N.................................      10.553             5.276

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

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

                                             English units (lb/1,000 lb

                                                     of product)

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

TSS.......................................       5.276             2.638

Manganese.................................       2.111             1.055

Chromium..................................       0.106             0.053

Ammonia-N.................................      10.553             5.276



[[Page 664]]





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

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

\1\ Within the range 6.0 to 9.0.





[40 FR 8037, Feb. 27, 1975, as amended at 60 FR 33957, June 29, 1995]