The City of Sonoma’s water supply and distribution system was not compromised by the fires. Sonoma’s primary source of water is supplied by the Sonoma County Water Agency. The Water Agency pumps water that is naturally filtered through rock, sand and gravel from wells about 100 feet below the bed of the Russian River and transports that water down Sonoma Valley in an underground aqueduct. The City has seven deep wells that supplement the purchased water supply. These wells were protected during the fires and are not impacted by surface runoff from burned areas.