Inside Diameter of Main (In inches) Number of Manufactured Home Sites Connected Maximum Length of Main (In feet) 2 20 600 3 60 1,800 4 120 3,600 6 400 12,000

NOTE: If local requirements exceed the above sizes, the local standards must be met. A minimum 6-inch diameter pipe is required if fire hydrants are installed in the water distribution system. (See Section 860.270(d).)

(Source: Amended at 30 Ill. Reg. 13419, effective July 28, 2006)