[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR466.22] [Page 611-612] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 466--PORCELAIN ENAMELING POINT SOURCE CATEGORY--Table of Contents Subpart B--Cast Iron Basis Material Subcategory Sec. 466.22 Effluent limitation representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must [[Page 612]] achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. (a) There shall be no discharge of process wastewater pollutants from metal preparation operations. (b) The discharge of process wastewater pollutants from all porcelain enameling coating operations shall not exceed the values set forth below: Subpart B--BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for any Maximum for 1 day monthly average Pollutant or pollutant property ----------------------------------- ------------------------------------------------------------------------ Mg/m\2\ (pounds per/million ft\2\) of area coated ---------- Chromium............................ 0.53 (0.11) 0.22 (0.05) Lead................................ 0.19 (0.04) 0.16 (0.03) Nickel.............................. 1.78 (0.37) 1.26 (0.26) Zinc................................ 1.68 (0.35) 0.71 (0.15) Aluminum............................ 5.74 (1.18) 2.35 (0.48) Iron................................ 1.55 (0.32) 0.79 (0.16) ------------------------------------------------------------------------ [47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36543, Sept. 6, 1985]