Oklahoma Administrative Code
Title 252 - Department of Environmental Quality
Chapter 626 - Public Water Supply Construction Standards
Subchapter 19 - Distribution System
Section 252:626-19-3 - Water main design for all systems providing fire protection
Current through Vol. 41, No. 13, March 15, 2024
(a) Sizing of mains.Size all lines after a hydraulic analysis pursuant to the International Fire Code, published by the International Code Council, Inc., 2003 Edition, Distribution System Requirements for Fire Protection, M 31,published by the AWWA, 3rd Edition or other recommendations of similar organizations for the fire service area. The minimum main size is 6 inches in diameter.
(b) Hydrants.
(c) Valves. Install valves on all small distribution lines branching from larger mains. Locate positive closing valves for isolating a line so that a single break will:
Added at 18 Ok Reg 1612, eff 6-1-01; Amended at 25 Ok Reg 2304, eff 7-11-08