[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR466.25] [Page 613] 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. 466.25 Pretreatment standards for new sources. Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicy owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. (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-- PSNS ------------------------------------------------------------------------ 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............................ 0.47 (0.10) 0.19 (0.04) Lead................................ 0.13 (0.03) 0.11 (0.02) Nickel.............................. 0.69 (0.14) 0.47 (0.10) Zinc................................ 1.29 (0.27) 0.53 (0.11) ------------------------------------------------------------------------ [47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36544, Sept. 6, 1985]