Illinois Administrative Code
Title 77 - PUBLIC HEALTH
Part 905 - PRIVATE SEWAGE DISPOSAL CODE
Appendix A - Illustrations and Exhibits
ILLUSTRATION I - Seepage Field Construction
Exhibit C - Gravelless System
Universal Citation: 77 IL Admin Code ยง C
Current through Register Vol. 48, No. 12, March 22, 2024
STANDARDS FOR SEEPAGE FIELD CONSTRUCTION (GRAVELLESS)
|
Trench Length, maximum length from point of discharge into system |
100 feet |
|
Trench Bottom, minimum width |
18 inches |
|
Trench Bottom, maximum width |
24 inches |
|
Trench Bottom, minimum depth |
18 inches |
|
Trench Bottom, maximum depth |
36 inches |
|
Trench Bottom, slope |
level |
|
Distribution Line, minimum inside diameter |
8 inches |
|
Distribution Line, maximum inside diameter |
10 inches |
|
Distribution Line, minimum earth cover |
6 inches |
|
Distribution Line, maximum earth cover |
24 inches |
|
Distribution Line, maximum slope |
level |
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