About 400,000 people a year arriving in the country now and it is estimated the arrivals will be about 12 million over the next 30 years. I think they have UNDER estimated by about 4 to 6 million people...
over a million people arrived in the last three financial years....
Warragamba Dam was designed for a supplement dam by about 1975.... though there is a good system in place for flow on water from outer regional dams....to supplement the Sydney system....
