Thirsty Ground

Rain gardens at the Grand Rapids treatment plant help capture and filter more than 12 million gallons a year, helping to curtail runoff pollution
Thirsty Ground

The mention of rain gardens may conjure up an image of little areas of shrubs and flowers that mitigate small amounts of rainwater runoff. But not at the wastewater treatment plant in the City of Grand Rapids, Mich.

This 90 mgd (design) activated sludge plant with average daily...

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