Gov. Doug Ducey has asked the EPA to revise federal rules to give states the power to decide which streams will be protected as “Waters of the U.S.”
That power can have huge impacts over how strictly development along those streams is regulated, such as subdivisions and mines whose construction requires dredging and filling of water bodies.
In a letter to Environmental Protection Agency Administrator Scott Pruitt, Ducey also argues that ephemeral streams and washes — those that carry water only after storms — shouldn’t be protected under that rule. Those are the overwhelming majority of watercourses in Arizona and Pima County.
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