77 Ill. Adm. Code 860.TABLE C
C Minimum Size and Slope of Sewer Mains
Section 860
Section 860.TABLE C Minimum
Size and Slope of Sewer Mains
Inside
Number of Sites
(Inches)
Minimum Slope
1-125
6
0.75%
more than 125
8
0.40%
77 Ill. Adm. Code 860.TABLE C