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History
Forty years ago, Lake Washington was too polluted for swimming.
In one of the first and largest environmental cleanups in history, people voted to save the lake by building a sewage treatment system. Now, Lake Washington is one of the cleanest urban lakes in the world.
History | Current Wastewater System | The Problem RWSP Home | Library/Resources | Tutorial | Contact Us
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Department of Natural Resources and Parks Updated: Oct. 2, 2007 |
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King County | Natural Resources & Parks | Wastewater Treatment Division Links to external sites do not constitute endorsements by King County. |
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For questions about the Wastewater Treatment Division Web site, please send an