Sydney Catchment Authority State or colonial government Authority established in 1999 to protect the catchments and manage the dams that provide Sydney's water supply. Milestone Created 1999 {"name":"Created","target":"","target_text":null,"date":{"#markup":"<span class='date'>1999<\/span>"},"date_start":"1999","date_end":"1999"} Type State or colonial government {"name":"State or colonial government","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null}