696 bytes added
, 7 years ago
'''The material pasted here has been retained for archival purposes only.'''
[[Infiltration: Testing|Infiltration tests]] must be undertaken at the location, depth and with a head of water that replicates the proposed design.
{|class="wikitable"
|+ Suggested safety factors to be applied to measured percolation rate when designing infiltration facilities
|-
!rowspan = "2"|Catchment area
!colspan="3"|Consequence of failure
|-
!No damage or inconvenience
!Minor damage or inconvenience to external structures (e.g. ponding in parking lot)
!Significant damage to buildings or infrastructure (e.g. flooding damage)
|-
|<100 m<sup>2</sup>||1.5||2||10
|-
|100 - 1000 m<sup>2</sup>||1.5||3||10
|}