energy, ecology, conservation, metropolitan water supply, Horsham, optimum size of Melbourne, Gippsland, Goulburn Valley, farming community, Melbourne's future water supply, rival water schemes, Yarra, Maribyrnong, chlorination water scheme, Australian Paper Manufacturers, Water Supply Commission, Warburton, communist party policy, decentralisation of industry, irrigation, Centralised Water Authority, untreated water, Yarra Warrandyte dam scheme, CROW-BOX23-25-12-DOC1