[Code of Federal Regulations] [Title 40, Volume 28] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR440.52] [Page 419] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 440_ORE MINING AND DRESSING POINT SOURCE CATEGORY--Table of Contents Subpart E_Titanium Ore Subcategory Sec. 440.52 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). 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 effluent limitations representing the degree of effluent reduction attainable after application of the best practicable control technology currently available (BPT): (a) The concentration of pollutants discharged in mine drainage from mines obtaining titanium ores from lode deposits shall not exceed: ------------------------------------------------------------------------ Effluent limitations --------------------------- Average of Effluent characteristic daily values Maximum for for 30 any 1 day consecutive days ------------------------------------------------------------------------ Milligrams per liter --------------- TSS......................................... 30 20 Fe.......................................... 2.0 1.0 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range 6.0 to 9.0. (b) The concentration of pollutants discharged from mills beneficiating titanium ores by electrostatic methods, magnetic and physical methods, or flotation methods shall not exceed: ------------------------------------------------------------------------ Effluent limitations --------------------------- Average of Effluent characteristic daily values Maximum for for 30 any 1 day consecutive days ------------------------------------------------------------------------ Milligrams per liter --------------- TSS......................................... 30 20 Zn.......................................... 1.0 .5 Ni.......................................... .2 .1 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range 6.0 to 9.0. (c) The concentration of pollutants discharged in mine drainage from mines engaged in the dredge mining of placer deposits of sands containing rutile, ilmenite, leucoxene, monazite, zircon, or other heavy metals, and the milling techniques employed in conjunction with the dredge mining activity (milling techniques employed include the use of wet gravity methods in conjunction with electrostatic or magnetic methods) shall not exceed: ------------------------------------------------------------------------ Effluent limitations ------------------------- Average of daily Effluent characteristic Maximum for values for any 1 day 30 consecutive days ------------------------------------------------------------------------ Milligrams per liter -------------- TSS........................................... 30 20 Fe............................................ 2 1 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range 6.0 to 9.0.