Crappy creek
Winding westward along Marin County’s northern border, San Antonio Creek encompasses about 20 percent of the Petaluma River watershed. While the state has continuously designated the main stem of the Petaluma River a contaminated water body due to excessive levels of bacteria tied to fecal matter since 1975, San Antonio Creek, a tributary to the river, has gone unaffected by the river’s bacteria problem. Until now.