Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 604 - DESIGN, OPERATION, AND MAINTENANCE CRITERIA
Subpart N - DISTRIBUTION
Section 604.1450 - Surface Water Crossings

Current through Register Vol. 48, No. 38, September 20, 2024

a) For above-water crossings, the pipe must be adequately supported and anchored, protected from damage and freezing, and accessible for repair or replacement.

b) Underwater Crossings

1) A minimum cover of five feet must be provided over the pipe.

2) When crossing water courses that are greater than 15 feet in width, the following apply:
A) the pipe must be of special construction, having flexible, restrained or welded watertight joints;

B) valves must be provided at both ends of water crossings so that the section can be isolated for testing or repair;

C) the valves must be easily accessible and not subject to flooding; and

D) permanent taps or other provisions to allow insertion of a small meter to determine leakage and obtain water samples must be made on each side of the valve closest to the supply source.

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