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

Endemic vegetation must be retained and/or reinstated.

The Land Application Areas shall remain vegetated with sufficient appropriate
shallow rooting grasses, and the retention mound/transpiration buffer zone shall also
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 of the Land Application Areas throughout their serviceable life. 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 occasional application of /gypsum at a nominal rate (say 0.5
kg/sqm) to the Land Application Areas throughout their serviceable life. 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. 17 Design Report 022-003