[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR440.23] [Page 417] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 440--ORE MINING AND DRESSING POINT SOURCE CATEGORY--Table of Contents Subpart B--Aluminum Ore Subcategory Sec. 440.23 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). The concentration of pollutants discharged in mine drainage from mines producing bauxite ores shall not exceed: ------------------------------------------------------------------------ Effluent limitations ------------------------- Average of daily Effluent characteristic Maximum for values for any 1 day 30 consecutive days ------------------------------------------------------------------------ Milligrams per liter -------------- Fe (total).................................... 1.0 0.5 Al............................................ 2.0 1.0 ------------------------------------------------------------------------