In urban environments water plays many roles. It is used for drinking, cooking, washing, gardening, parks, recreation, sanitation, and manufacturing. On coastlines and where rivers cut through cities it serves as a transportation artery. The Drinking Water Dilemma In a 1996 published

Agriculture and freshwater are inextricably linked. Water is essential to agricultural production and food security. Freshwater is an increasingly scarce resource yet indispensable for the existence of all life on the planet. There is no substitute for it. In the 20th century our worl