Penrith Council s greening our parklands miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
Lake Gnangara, the most southerly of the Wanneroo wetlands, and Lake Mariginiup have become acidic after previously submerged soils containing metals and other sediments were exposed to oxygen because of dropping water levels.