A federal judge says the owner of a San Francisco Bay Area island violated the federal Clean Water Act when he destroyed marshland by building a levee and dumping dredged material while building duck-hunting ponds.
Wednesday’s ruling is the latest in a years-long battle between regulators and John Sweeney, who owns an island in Suisun Bay, a tidal channel and marsh area northeast of San Francisco.
In the ruling, the judge said Sweeney harmed wetlands by building a nearly mile-long levee without a permit and dumping dredged material while building duck-hunting ponds.
Any penalty must await further hearings. The next hearing is scheduled for October.