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Upper Watershed |
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| Water is pumped to backwash the filters and remove trapped particles. Backwash water is drained to basins where filtered solids settle out. |
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> To end the virtual tour |  |
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Upper Watershed |
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| Water is pumped to backwash the filters and remove trapped particles. Backwash water is drained to basins where filtered solids settle out. |
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> To end the virtual tour | |
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