The Bore Pump Resumes Operation 

Thanks to Ranger Adrian Howard, funding was secured from Victorian Fisheries Authority to replace the inoperative bore pump

Latest Info: 

After pumping for a week (scheduled hours), the switch board has blown up.  Hopefully repairable but there will be no water pumped for a while!

Pumping Restrictions:

PV's license to 'Take & Use' is limited to 70 Megalitres per year (This is understood to be 'financial year')

Daily pumping limit is  0.28 Megalitres.

How long to 'fill the lake' ?

The lake surface area is 15 Hectares,  70 Megalitres will raise the level by around 440 mm,   Considering the lake level fell by a meter in 10 years we may assume the net effect of rainfall and evaporation would be around a 10cm drop, so we can expect the pumping operation to to raise the surface level 340 mm each year.

Based on these very rough calculations, Karkarook Lake will take about four years to reach its design surface level.
As this happens, we should slowly see the return of the wetland, sub-surface vegetation and the ecology to sustain our native birds.

Friends of Karkarook Park will monitor the water levels Monthly and record results here.

A baceline has been established:
We measure from top of bridge handrail to to water surface.   Subtract that from 41.95 (height of the handrail AHD) to arrive at the actual water level AHD .  Should be 39.5 mt AHD (± 0.3 seasonal variation). We're not there yet, but we'll get there!