RFI - Appendix 5 - Water Managment Plan · MCU19/0117

Appendix A: 95% Wettest Rainfall and Evaporation Rates




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Appendix A: 95% Wettest Rainfall and Evaporation Rates

NOOSA NORTH SHORE WAVE POOL - WATER LEVEL MANAGEMENT

Location Noosa Heads, QL, AUS
DataSource http://www.bom.gov.au/watl/evaporation/
http://www.bom.gov.au/jsp/ncc/climate_averages/rainfall/indexjsp

 

95th %ile
Surf Pool Area (m2) 4,000

Annual
Evaporation (mm) 1,265
Evaporation (L) 5,060,000

95% Rainfall (mm) 2,344
Rainfall (L) 9,376,000

Net Rain(+)/Evap(-) ** 4,316,000 (+)
(varies monthly)
less operational tolerance (100mm)

net disposal volume required (worst month)

Monthly
Jen Feb Ma Apr May Jun Jul Aug Sep Oct
150 150 125 #0 50 50 2 80 100 125
600,000 600,000 500,000 320,000 200,000 200,000 320,000 320,000 400,000 500,000

340 527 587 293 255 262 195 229 16 403
1,360,000 2,108,000 2,348,000 1,172,000 1,020,000 1,048,000 780,000 916,000 660,000 1,612,000

760,000 1,508,000 1,848,000 852,000 820,000 848,000 460,000 596,000 260,000 1,112,000
400,000

1,448,000 Litres

** note annual rainfall is not total of individual months but represents the 95%ile annual figure
** Does not take into account losses from: filtration backwash; bather splash or carry-out; and, airborn mist created from breaking waves.

Daily Maximum
SurfPool Area (m2) 4,000

Daily Max Rainfall (mm)
Less Operational tolerance (+/- 100mm)

Net excess (mm)

Net Excess (Litres)

Wors Case 840,000 Lites
Next worst 608,000 Litres

Daily
Jen Feb Ma Apr May Jun Jul Aug Sep Oct
181 252 189 161 152 84 4 310 5 233
100 100 100 100 100 100 100 100 100 100

81 152 89 61 52 210 133
324,000 608,000 356,000 244,000 208,000 o 0 840,000 0 532,000

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Nov
125
500,000

204
816,000

316,000

Nov
135
100
35
140,000

TOD

engineers & project managers

TODE

engineers & project managers

600,000

262
1,048,000

448,000

100