this is an issue ... coke brought out petes ridge springs a few years back and it seems that coke have sucked the life out of petes ridge spring so much that the local water catchment that used to get runoff from the spring has hit 14% leaving the gostford /central coast with no water. adding to that coke use hundreds of thousands of litres of sydney tap water per day to produce there non springwater products. also there are 4 alcohol production plants that I know of that also use bulk tapwater daily in sydney, not to mention other industry. melbourn too recycled water may be the key so may be desal but sitting around waiting for it to rain aint going to work