07/1413 - Response to Information Request [As Published] · 132007.1413

 

 

 

 

 

 

 

 

 

Soil Classification

| Borehole Nos 1&2&3
Soil Category 3
Indicative Drainage _ ; Poorly Drained
Structure Moderately

| Texture Light Clays
Indicative Permeability P (m/d) as Ksat* 0.06 - 0.12
Recommended DIR ; 20
(AS/NZS 1547 / 2000)

 

 

 

 

 

4.0 Treatment Facility:

The on site treatment facility is to be an “Advanced Secondary” Aerated Wastewater Treatment System with a daily flow
capacity of no less than 2000It/d, plus a 6000It baffled septic tank upstream to act as flow balancing and to increase
retention time and equivalent person capacity. Pump wells are to be installed and fitted with “Feka Pumps” as shown on
the site plan. All inffluent to be directed to the septic tank.

A minimum 25m head pump will need to be fitted to the treatment system.

For the purpose of our calculations we have adopted an EP of 3 for each of the 2 bedroom cabins. (9EP), and have
assumed 100% occupancy. For the 4 bedroom dwelling we have adopted an EP of 6. (Total 15 EP)

Standard water reduction fixtures to be installed in all cabins and proposed dwelling as per ASNZS 1547:2000,
this will reduce the expected flow rate to 1725lt/d.

5.0 Land Application Areas: - Two areas proposed.

Area #1;

The preferred method of dispersal in Land Application Area # 1 is Covered Surface Drip Irrigation to existing
fruit tree’s. The installer is to determine how many 4mm drip lines are to be installed to each tree in accordance
with flow rate requirements of the irrigation pump and the sterilization unit. This area bordered by a fence.

25mm lo-pol irrigation pipe to be setup in a “rack” to ensure even pressure distribution to all drip lines. Irrigation
pipes should always be covered by mulch or soil.

A flush out valve to be installed in a mini valve at the lowest point in the irrigation area to enable flushing of
lines.

Non return valve to be installed to prevent flow back in the delivery line as required.
A minimum of 100mm of mulch is to be placed a the base of each fruit tree approximately 1.5m in diameter.

In accordance with Noosa Shire stipulated guidelines, treated effluent must not at any time extend beyond the
approved designated area.

Two warning signs to be installed in this area.

Area #2:

Two turf valves to be installed in Land Application Area # 2 14m apart as per the drawings. Two 7m hoses
each fitted with one heavy droplet sprinkler to be installed and moved when necessary to ensure even
distribution over the entire area.

In accordance with Noosa Shire stipulated guidelines treated effluent must not at any time extend beyond the
approved designated area.

Non return valve to be installed to prevent flow back in the delivery line as required.
Two warning signs to be installed in this area.
Note:

Two isolation valves to be installed in the delivery lines to alternate water flow to Land Application Area # |
and Land Application Area # 2.

Supply line to be buried 200mm and comply with AS/NZS 1547/2000. 3/7