Site layout & Building Supervision
The following points must be considered when completing a site layout plan.
Has a percolation test been completed or commenced, the proposed location and invert level of the percolation area should be established.
The levels for the proposed driveway and footpaths should be established.
The footpaths and manholes around the house define the up-line invert level of the waste water system.
Establishing footpath and floor levels will also help in evaluating the optimum height of the house in terms of impact on local landscape.
Unique contours/features of the site should be evaluated when positioning the house to minimize excavation and maximise natural contours.
The previous considerations will impact on deciding where to locate the treatment system and percolation area.
The levels from the footpath manhole can be calculated to provide the invert level of the percolation area.
This level will determine the location and depth in which the percolation test should be carried out.