[Code of Federal Regulations] [Title 40, Volume 18] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR133.100] [Page 489] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 133--SECONDARY TREATMENT REGULATION--Table of Contents Sec. 133.100 Purpose. This part provides information on the level of effluent quality attainable through the application of secondary or equivalent treatment. [[Page 490]]