A wide range of technologies is available in the market place for wastewater and stormwater management from simple on-site to complex centralised systems. Not all of these are suitable for developing countries, and particularly not those which require a large capital cost and on-going maintenance and operating costs. There are many other equally important factors which need to be considered besides cost. Criteria for evaluation of technologies are therefore needed, particularly if we want to achieve long term sustainability of the technology. Three case examples are examined to help stimulate our thinking about the criteria that are required. Criteria for selection are then suggested. These can be grouped into criteria for (1) Protection of public health and the environment, (2) Economic/financial affordability and (3) Social/cultural appropriateness. These criteria are elaborated and a framework for achieving integrated waste management suggested.