Sonoma
Sonoma County: supervisors, Santa Rosa, fire districts, Russian River.
Monday, October 12, 2026
PETALUMA
Engineered-diamond chip company picks Petaluma for its first pilot manufacturing site
Diamond Quanta will build out Diamond Forge 1, a pilot manufacturing environment for semiconductor-grade diamond integration, at a new Petaluma operations center. First Petaluma-made parts are planned for a CES 2027 debut.
George Alder, Business & Development reporter · October 10, 2026
SANTA ROSA
Santa Rosa asks voters to double the sales tax to a full cent
Measure L would replace the half-cent Measure Q with a 1% rate, raising an estimated $46 million a year after three years of cuts and 82 eliminated positions.
Anthony Ferraro, Sonoma County reporter · September 23, 2026
SANTA ROSA
Rancho Adobe's move into Sonoma County Fire District redraws the fire map
Both boards have voted to consolidate and the reorganization is moving through LAFCO. Parcel-tax rates would carry over, assets and liabilities transfer, and the county's consolidation wave rolls on.
Anthony Ferraro, Sonoma County reporter · September 17, 2026