1998 Sydney water crisis
The 1998 Sydney water crisis involved the suspected contamination of the water supply system of Greater Metropolitan Sydney by the microscopic pathogens Cryptosporidium and Giardia between July and September 1998. Following routine water sampling and testing, over a series of weeks low level contaminants were found at Prospect, Potts Hill, Sydney Hospital, the Art Gallery of New South Wales, Macquarie Street, Centennial Park, Surry Hills, Rhodes, Enfield, Palm Beach and water treatment facilities at Warragamba, Nepean, North Richmond, Orchard Hills, Woronora, Macarthur, the Illawarra and Prospect.