 Water supply activities included constructing further bulk water storage dams, and treatment and water distribution works.Other achievements were completing and upgrading the Manukau wastewater treatment plant, creating the largest bus fleet in the country at the time, constructing Auckland Airport representing local government in a joint venture with central government and creating the regional parks network, founded on the Centennial Memorial Park in the Waitākere Ranges which was transferred from Auckland City Council control and added to first with the purchase of what became Wenderholm Regional Park.Functions added at later dates included a regional role operating and regulating refuse disposal, regional roads, the regional water board under the Water and Soil Conservation Act 1967 and harbour master and marine regulation.