Ill. Admin. Code tit. 77, pt. 905, app A, ILLUSTRATION X, exh. E
Current through Register Vol. 49, No. 2, January 10, 2025
Design Group | Percolation Rate Equivalent |
I | Unsuitable |
II | 10 minutes/inch |
III | 15 minutes/inch |
IV | 20 minutes/inch |
V | 23 minutes/inch |
VI | 25 minutes/inch |
VII | 30 minutes/inch |
VIII | 35 minutes/inch |
IX | 40 minutes/inch |
X | 50 minutes/inch |
XI | 70 minutes/inch |
XII | 90 minutes/inch |
Ill. Admin. Code tit. 77, pt. 905, app A, ILLUSTRATION X, exh. E