In some cases, the impetus for water recycling comes not from a water supply need, but from a need to eliminate or decrease wastewater discharge to the ocean, an estuary, or a stream.
For example, high volumes of treated wastewater discharged from the San Jose/Santa Clara Water Pollution Control Plant into the south San Francisco Bay threatened the area's natural salt water marsh. In response, a$140 million recycling project was completed in 1997. The South Bay Water Recycling Program
Incline Village, Nevada, uses a constructed wetland to dis pose of wastewater effluent, expand the existing wetland habitat for wildlife, and provide an edu ca tional experience for visi tors.
has the capacity to provide 21 million gallons per day of recycled water for use in irrigation and industry. By avoiding the conversion of salt water marsh to brackish marsh, the habitat for two endangered species can be protected.
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