2024 Season - Wet Weather Groundwater Determinations & Percolation Testing: Open in Most Areas
Groundwater determinations and percolation testing are necessary for onsite wastewater treatment systems (OWTS). Groundwater determinations are reopened in almost all testing areas, and are closed in the Petaluma testing area. Percolation testing is extended in all testing areas.
Latest News
2024 Season - Wet Weather Groundwater Determinations & Percolation Testing: Open in Most Areas
Groundwater determinations and percolation testing are necessary for onsite wastewater treatment systems (OWTS). Groundwater determinations are reopened in almost all testing areas, and are closed in the Petaluma testing area. Percolation testing is extended in all testing areas.
Lower Your Insurance Risk with SoCo Adapts
SoCoAdapts and Sonoma County want to help you lower your insurance premiums, give you more choices in insurance plans, and contribute to a safer community. And qualify for $10,000 in rebates! How? Learn more and check your eligibility.
Updates to the Groundwater Determinations Policy
The Groundwater Determinations Policy has been updated. The changes reflect clarifying language and updates regarding the radius distance surrounding a groundwater test hole, the number of test holes required for a proposed septic system and depths of test holes based on site conditions such as impermeable layers.
Press Releases
Sonoma County opens Chipper program early to reduce wildfire risk
Sonoma County’s free Residential Curbside Chipper Program is launching early this year in an effort to reduce residential wait times, expand service, and mitigate the risk of wildfires.
Center for Climate Action and Innovation at Sonoma Developmental Center business plan released
The creation of a Center for Climate Action that could serve as a hub for climate leaders, innovators and the public to collaborate in addressing the climate crisis, is the focus of a business plan released by the County of Sonoma today for the Sonoma Developmental Center site.
Sonoma County Board of Supervisors extend temporary ban on tree removals
The Sonoma County Board of Supervisors today extended a temporary moratorium on removing protected trees for another four months. The urgency ordinance is needed while Permit Sonoma continues work on an updated Tree Protection Ordinance. The board on December 12 directed staff to make changes to the Tree Ordinance and adopted the 45-day moratorium as a placeholder. Today’s vote extends the moratorium until May 31.