For the first time in its history, Bolinas Beach was abruptly closed by Marin County officials on Friday after alarming levels of wastewater contamination were discovered near its shores. The discovery cast doubt on the viability of the town’s aging septic systems and prompted fears about the pace of bluff erosion.
Marin County Environmental Health Services conducts weekly water quality tests from April through October at various sites along the coast, but sewage seeps…