In 1892 the Melbourne and Metropolitan Board of Works established the Metropolitan Sewage Farm on the western bank of the Werribee River, to treat the effluent from Melbourne's new sewerage system.This area was isolated and too far from Melbourne, so the Cocoroc village was built to house the workers.Colour photograph of the Cocoroc Swimming Pool. This pool was built by the town's residents.swimming pool, sport, swimming, pre olympic, concrete, cocoroc, cocoroc swimming pool