Opinions among residents in the San Geronimo Valley remain divided over whether a community sewage treatment system should be installed in the Woodacre Flats area that would service 150 developed parcels. There, a high water table prevents effluent from percolating fully through residential leach fields, causing foul odors and fecal seepage during the rainy winter season, and pollution from the sludge combined with sediment runoff threatens to contaminate creeks in a watershed where salmon populations…