[Code of Federal Regulations] [Title 40, Volume 22] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR258.26] [Page 400] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 258--CRITERIA FOR MUNICIPAL SOLID WASTE LANDFILLS--Table of Contents Subpart C--Operating Criteria Sec. 258.26 Run-on/run-off control systems. (a) Owners or operators of all MSWLF units must design, construct, and maintain: (1) A run-on control system to prevent flow onto the active portion of the landfill during the peak discharge from a 25-year storm; (2) A run-off control system from the active portion of the landfill to collect and control at least the water volume resulting from a 24- hour, 25-year storm. (b) Run-off from the active portion of the landfill unit must be handled in accordance with Sec. 258.27(a) of this part. [56 FR 51016, Oct. 9, 1991; 57 FR 28627, June 26, 1992]