[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR464.45] [Page 597-598] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 464--METAL MOLDING AND CASTING POINT SOURCE CATEGORY--Table of Contents Subpart D--Zinc Casting Subcategory Sec. 464.45 Pretreatment standards for existing sources. Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. (a) Casting Quench Operations. PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0344 0.0187 Lead (T).................................... 0.0237 0.0116 Zinc (T).................................... 0.0339 0.0129 TTO......................................... 0.093 0.0304 Oil and grease (for alternate monitoring)... 1.34 0.446 ------------------------------------------------------------------------ (b) Die Casting Operations. PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds of metal poured) --------------- Copper (T)................................... 0.0066 0.0036 Lead (T)..................................... 0.0046 0.0022 Zinc (T)..................................... 0.0066 0.0025 Total phenols................................ 0.0074 0.0026 TTO.......................................... 0.0196 0.0064 Oil and grease for alternate monitoring)..... 0.259 0.0864 ------------------------------------------------------------------------ [[Page 598]] (c) Melting Furnace Scrubber Operations. PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed --------------- Copper (T).................................. 1.56 0.852 Lead (T).................................... 1.07 0.527 Zinc (T).................................... 1.54 0.588 Total phenols............................... 1.74 0.608 TTO......................................... 3.95 1.29 Oil and grease for alternate monitoring).... 60.8 20.3 ------------------------------------------------------------------------ (d) Mold Cooling Operations. PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.304 0.166 Lead (T).................................... 0.209 0.103 Zinc (T).................................... 0.3 0.114 TTO......................................... 0.821 0.268 Oil and grease for alternate monitoring).... 11.8 3.94 ------------------------------------------------------------------------