wastewater design

5.2 Planting Regime.

Plantings improve the efficiency of the system with the uptake of nutrient and natural
transpiration processes. Further qualified advice from local nurserymen and the local
regulatory authority should be preferred when choosing plants that may be more or
less suitable or acceptable to your region. Grasses should be kept well mown and
raked for better evaporative and transpiration processes (avoid throwing grass
clippings onto the Land Application Areas). Shrubs should be kept well pruned for
better evaporative and transpiration processes.

Endemic vegetation must be retained and/or reinstated.

Following the site preparation, installation and pre-commissioning tests the Land
Application Areas shall be allowed to revegetate with sufficient appropriate shallow
rooting grasses as determined by historical performance outcomes.

Unearthed Geotechnical P/L recommends further assessment regarding planting
requirements be sought prior to, or at the time of installation of the Land Application
Facilities. It may be necessary to implement an additional planting regime.

Do not plant shrubs or trees within the surface water diversion drains, as these drains
need to be kept free of obstruction and trash for maximum diversion efficiency.

We recommend the application of dolomite/gypsum at a nominal rate (say 0.5
kg/sqm) to the entire basal areas, when preparing the existing soil. This will assist
with both plant growth and/or pH control. Further applications may be required
during the serviceable life of the Land Application Areas.

 

Unearthed Geotechnical P/L. 11 Design Report 022-003