[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR463.12] [Page 548] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 463--PLASTICS MOLDING AND FORMING POINT SOURCE CATEGORY--Table of Contents Subpart A--Contact Cooling and Heating Water Subcategory Sec. 463.12 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the effluent limitations guidelines (i.e., mass of pollutant discharged) representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available, which are calculated by multiplying the average process water usage flow rate for the contact cooling and heating water processes at a point source times the following pollutant concentrations: Subpart A [Contact cooling and heating water] ------------------------------------------------------------------------ Concentration used to calculate BPT effluent limitations ------------------------------------------------------------------------- Maximum for Pollutant or pollutant property any 1 day (mg/l) ------------------------------------------------------------------------ BOD5....................................................... 26 Oil and grease............................................. 29 TSS........................................................ 19 pH......................................................... (\1\) ------------------------------------------------------------------------ \1\ Within the range of 6.0 to 9.0 at all times. The permit authority will obtain the average process water usage flow rate for the contact cooling and heating water processes from the permittee.