Botany sewage farm Water Treatment Plant Sewage farm constructed at Webb's Grant, a sand spit on the southern side of the Cooks River mouth to relieve the critical sanitary situation in the southern and western suburbs. Milestone Opened 1887 {"name":"Opened","target":"","target_text":null,"date":{"#markup":"<span class='date'>1887<\/span>"},"date_start":"1887","date_end":"1887"} Closed 14 Sep 1916 {"name":"Closed","target":"","target_text":null,"date":{"#markup":"<span class='date'>14 Sep 1916<\/span>"},"date_start":"1916-09-14","date_end":"1916-09-14"} Type Water Treatment Plant {"name":"Water Treatment Plant","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null} image image image image