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King County cites soaring costs, climate change in bid to redo water-pollution agreement with state and feds

Work is being done by construction workers in an equalization basin at the Georgetown Wet Weather Treatment Station in Seattle Wednesday, December 4, 2019.  The basin will take the energy out of water consisting of waste and storm water so it is moving slower.  Then pumps will pump the water into other buildings (at top right)  where the solid material and water will be separated. The water will be treated with UV and when clean will be sent to the Duwamish River.  The solids will be recycled by the county.  The purpose of the treatment station is to capture and treat all overflows during heavy rain events.  It will be operational in 2022.    The equalization basin can hold 1.5 million gallons. Once completed, the station can treat 70 million gallons of combined rain and wastewater per day that would have been discharged directly to the Duwamish River with no treatment during storm events.

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County officials expect to spend more than $1.9 billion over the next decade, and would like the money to fund a broader range of projects to tackle polluting stormwater runoff into creeks, rivers and Puget Sound.

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