[Code of Federal Regulations] [Title 40, Volume 22] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR146.63] [Page 739] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 146_UNDERGROUND INJECTION CONTROL PROGRAM: CRITERIA AND STANDARDS --Table of Contents Subpart G_Criteria and Standards Applicable to Class I Hazardous Waste Injection Wells Sec. 146.63 Area of review. For the purposes of Class I hazardous waste wells, this section shall apply to the exclusion of Sec. 146.6. The area of review for Class I hazardous waste injection wells shall be a 2-mile radius around the well bore. The Director may specify a larger area of review based on the calculated cone of influence of the well.