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Washington announces new rain runoff requirements

SEATTLE – Washington state will begin requiring municipalities to use "rain gardens" and pervious pavement in new urban developments to combat rainwater pollution to the state's rivers and lakes and to the Puget Sound, officials announced Wednesday.

By MANUEL VALDES

SEATTLE – Washington state will begin requiring municipalities to use "rain gardens" and pervious pavement in new urban developments to combat rainwater pollution to the state's rivers and lakes and to the Puget Sound, officials announced Wednesday.