Voters in all nine Bay Area counties will decide in June whether to approve a $12 parcel tax that would raise $25 million a year for 20 years for restoration projects on San Francisco Bay. The San Francisco Bay Restoration Authority, an eight-year-old government agency, voted last week to put the measure on the ballot, reportedly the first time a parcel tax has been on the ballot in all nine counties. Since the 1800s, the…