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Water Supply Management and Planning
| The "megacities" (i.e., population >10 million) of the world have perhaps the most challenging problems in managing and protecting their potable water supply. New York City [view report], which depends on surface water for its drinking water, has a long-term watershed management program that combines land acquisition, watershed rules and regulations, and financial assistance to communities in its watersheds. This program has so far allowed the city to avoid the cost of filtering its upstate surface water. Mexico City [view report], which draws over seventy percent of its water from the underlying Mexico City Aquifer, suffers from declining groundwater levels accompanied by regional land subsidence. Its challenges include flooding and damaged infrastructureĞincluding water and sewer lines - from this subsidence. Other megacities in the developing world [view report] face challenges ranging from improving sanitation to financing to broader participation in the water resource planning process. |
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