The Ontario Building Code | Loading Requirements

8.7.4.1. Loading Requirements

(1) The area described in Sentence 8.7.4.2.(1) shall be designed such that the loading rate does not exceed, for soil having a percolation timeset out in Column 1 of Table 8.7.4.1., the maximum value set out opposite it in Column 2 of Table 8.7.4.1.

Table 8.7.4.1.
Loading Rates for Fill Based Absorption Trenches and Filter Beds

Forming Part of Sentences 8.7.4.1.(1) and 8.7.5.2.(2)

Item

Column 1

Percolation Time (T) of soil, min

Column 2

Loading Rates, (L/m2)/day

1.

1 < T ≤ 20

10

2.

20 < T ≤ 35

8

3.

35 < T ≤ 50

6

4.

T > 50

4