000A88A4.122.tif · 132003.221037

om

€ Cardno
MEK

 

Table 5.3.1 : Average Meteorological Data for the Years 1950 to 2002

Janua 2¢ 22 22
Febru 29 22 20
March 28 20 19
April 26 18 16
Mai 86 24 15 14
June 75 22 412 13

Ju 81 21 10 14
August 62 104 22 41 17
September 50 135 24 14 20
October 93 161 26 16 22
November 133 173 27 19 23
December 153 190 29 20 24
Year 1689 1585 25 16 18

 

Average annual totals of rainfall and pan evaporation are presented below in Table 5.3.2. it is
observed that that the 50" percentile for rainfall and pan evaporation are 1601 and 1576
mmi/year respectively.

  
  

  
   

 

 

Table 5.3.2. Average Annual Totals of Rainfall and Pan Evaporation
Ei

a gh u Sante
Rainfall (mm/year) 1202 1601 2284
Pan Evap (mm/year) 1506 1576 1673

   

 

 

 

 

 

 

 

MEDLi Modelling Resuits

MEDLI was run 12 times with different combinations of total irrigation area and pond volumes.
The aim of this exercise is to determine the ideal combination of these 2 parameters to
determine the effluent irrigation area and storage volume requiremenis.

The irrigation areas modelled are 3, 5, 6 and 10 ha. The results obtained provide a sustainable
irrigation area requirement of 6.5 ha. Figure 4 highlights preliminary selected irrigation areas
that meet the size requirement as specified by the results of the MEDLI Modelling exercise.

It is intended that a detailed analysis will be carried out during the design phase to ascertain
final irrigation areas.

A wet weather storage volume of five (5) times average dry weather flow (ADWF) of
approximately 250 KL is required. _

Nitrogen (N)

There is an overall nitrogen deficit in the soil after the 50 year running period. The initial soil
organic N was 133.7 kg/ha, and the final soll organic N was 84.1 kg/ha therefore the total
organic N loss is approximately 49.6 kg/ha. This deficit can be attributed to the proposed
nutrient removal treatment capabilities of the proposed package treatment plant. in order to
effectively overcome this deficit, nitrogen fertilizers would need be applied to the solis on this
site to maintain adequate nitrogen levels. Soil conditions within the effluent irrigation areas
would be monitored under an effluent irrigation management plan.

 

PETRAC LAND HOLDINGS P/L Noosa North Shore Eco-Tourism Portal “September 2003
L\7296-02\ReportiFINAL REPORT - 18Sept03.doc Commercial in Confidence Page 14