A resident reported a possible arson incident in the Bowers Mansion Area on Nextdoor on August 11, 2026.

Diablo Fire Threatened Pleasant Valley and Toll Road Areas UPDATE: August 3, 2026 at 10:47am: Size updated to 185 acres per Watch Duty. As reported by the last WatchDuty app update posted at 9:00pm on Sunday, August 2, 2026, forward progress of the fire had been stopped. Located