[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR464.25] [Page 571] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 464--METAL MOLDING AND CASTING POINT SOURCE CATEGORY--Table of Contents Subpart B--Copper Casting Subcategory Sec. 464.25 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/1000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0307 0.0168 Lead (T).................................... 0.0211 0.0104 Zinc (T).................................... 0.0303 0.0116 TTO......................................... 0.0335 0.0109 Oil and grease (for alternate monitoring)... 1.2 0.399 ------------------------------------------------------------------------ (b) Direct Chill 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)................................ 0.928 0.506 Lead (T).................................. 0.639 0.314 Zinc (T).................................. 0.916 0.35 ------------------------------------------------------------------------ (c) Dust Collection 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)................................ 0.552 0.301 Lead (T).................................. 0.38 0.187 Zinc (T).................................. 0.545 0.208 Total phenols............................. 0.617 0.215 TTO....................................... 1.65 0.54 Oil and grease (for alternate monitoring). 21.5 7.18 ------------------------------------------------------------------------ (d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW. (e) Investment Casting. 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)................................ 8.48 4.63 Lead (T).................................. 5.84 2.86 Zinc (T).................................. 8.37 3.19 TTO....................................... 25.4 8.29 Oil and grease for alternate monitoring).. 330 110 ------------------------------------------------------------------------ (f) 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)................................ 1.81 0.988 Lead (T).................................. 1.25 0.612 Zinc (T).................................. 1.79 0.673 Total phenols............................. 2.02 0.706 TTO....................................... 5.41 1.77 Oil and grease (for alternate monitoring). 70.6 23.5 ------------------------------------------------------------------------ (g) 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)................................ 0.392 0.214 Lead (T).................................. 0.27 0.132 Zinc (T).................................. 0.387 0.148 TTO....................................... 0.428 0.14 Oil and grease (for alternate monitoring). 15.3 5.09 ------------------------------------------------------------------------