[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR444.16] [Page 458-459] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 444--WASTE COMBUSTORS POINT SOURCE CATEGORY--Table of Contents Subpart A--Commercial Hazardous Waste Combustor Subcategory Sec. 444.16 Pretreatment standards for existing sources (PSES). Except as provided in 40 CFR 403.7 and 403.13, any source that introduces wastewater pollutants into a POTW must comply with part 403 and achieve the following pretreatment standards: Pretreatment Standards \1\ ------------------------------------------------------------------------ Maximum Regulated parameter Maximum monthly daily avg. ------------------------------------------------------------------------ Arsenic......................................... 84 72 [[Page 459]] Cadmium......................................... 71 26 Chromium........................................ 25 14 Copper.......................................... 23 14 Lead............................................ 57 32 Mercury......................................... 2.3 1.3 Silver.......................................... 13 8 Titanium........................................ 60 22 Zinc............................................ 82 54 ------------------------------------------------------------------------ \1\ Micrograms per liter (ppb)