Marin Superior Court issued a preliminary judgment last week on the 2010 lawsuit brought by Forest Knolls-based Salmon Protection and Watershed Network (SPAWN) against the county, alleging that a 2007 countywide plan failed to protect salmon habitat in the San Geronimo Valley, in violation of the California Environmental Quality Act.

The 16-page tentative ruling largely favors the county, repeatedly rejecting the merit of SPAWN’s claims. However, a single line leaves an opening for a building…