Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 604 - DESIGN, OPERATION, AND MAINTENANCE CRITERIA
Subpart N - DISTRIBUTION
Section 604.1430 - Air Relief Valves
Universal Citation: 35 IL Admin Code ยง 604.1430
Current through Register Vol. 48, No. 38, September 20, 2024
a) Air relief valves must be installed at high points in water mains where air can accumulate.
b) Automatic air relief valves must not be used in situations where flooding of the manhole or chamber may occur.
c) Air Relief Valve Piping
1) The open end of an air relief pipe
from a manually operated valve must extend to the top of the pit and be
provided with a screened, downward-facing elbow if drainage is provided for the
manhole.
2) The open end of an air
relief pipe from automatic valves must be extended to at least one foot above
grade and provided with a screened, downward-facing elbow.
3) Discharge piping from air relief valves
must not connect directly to any storm drain, storm sewer, or sanitary
sewer.
Disclaimer: These regulations may not be the most recent version. Illinois may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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