[Code of Federal Regulations] [Title 40, Volume 20] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR149.1] [Page 840] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 149_SOLE SOURCE AQUIFERS--Table of Contents Subpart A_Criteria for Identifying Critical Aquifer Protection Areas Sec. 149.1 Purpose. Source: 52 FR 23986, June 26, 1987, unless otherwise noted. The purpose of this subpart is to provide criteria for identifying critical aquifer protection areas, pursuant to section 1427 of the Safe Drinking Water Act (SDWA).