132006.268.03 - Original Court Approval - Attachment 1

Cooroy Mountain Spring Water CEDA Cooroy Mountain Road, Mt. Cooroy QLD

4) Previous assessment

The outcomes of the previous assessment
by Global Testing are as follows.

4.1 Wastewater loading

At the time the report was prepared the
predicted wastewater loading was a total
of 1950L/day comprised of:

* 900L/day from the existing 3
bedroom household; and

¢ 1050L/day from the extended
bottling facility (21 persons @ 50L
per person per day).

4.2 Soil types

Soil encountered at the site of the
proposed irrigation area was defined as a
moist brown silty, sandy clay overlying a
moist red/brown silty, sandy clay. No
indication of soi! structure was given.

 

4.3 Permeability

Three separate infiltration tests were used
to determine that the average permeability
for the chosen disposal site was 0.22m/day
and consequently a design irrigation rate
(from AS1547) of 20mm/week was adopted.

4.4 Irrigation area

Based on the above information Global
Testing recommended that a gypsum
treated surface spray irrigated area of
683m? would be sufficient to assimilate the
wastewater generated.

In accordance with the required Noosa
Shire setback distance for properties
located with the Lake MacDonald
catchment the proposed area was to be
jocated near the western lot boundary to
the south of the access road.