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The worldwide urban water and wastewater infrastructure challenge

There are two parts to the challenge of providing the infrastructure necessary for universal access to water and sanitation. One challenge is the extension of existing infrastructure and new infrastructure to serve all in today's urban areas and to keep up with the expected rapid growth of cities; the other is the refurbishment of existing infrastructure to maintain access to water and sanitation. Meeting the second challenge is the more costly; it is also essential to meeting the first challenge. Infrastructure is the means, not the end, with a requirement for clear policies on objectives, priorities and service standards. Delivery will require effective planning, regulation, innovation, capacity building and training. Although the infrastructure costs will be high, the benefits will be greater.