Attachment K - HSTP Design

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 Area). Shrubs should be kept well pruned for
better evaporative and transpiration processes.

Endemic vegetation must be retained and/or reinstated.

The Land Application Area shall remain vegetated with sufficient appropriate shallow
rooting grasses or shrubs, and the retention mounds/transpiration buffer zones, if
required, shall remain vegetated with sufficient appropriate shallow rooting grasses,
shrubs or small trees 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
Facility. 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 debris for maximum diversion efficiency.

We recommend the occasional application of dolomite/gypsum at a nominal rate to
the Land Application Area. This will assist with both plant growth and/or pH control.

 

Unearthed Geotechnical P/L. 16 Design Report 023-038