Technician treating a mosquito-laden swimming pool                                                                         
  Notification of Action 

Contra Costa Mosquito & Vector Control Links

Important Links
Contra Costa Mosquito & Vector Control District makes every attempt to ensure prompt opt-in, opt-out, and delivery of their notifications; however, we cannot guarantee notification prior to adult mosquito spraying events through this notification service.

Due to the high number of nuisance mosquitoes in the area, the Contra Costa Mosquito & Vector Control District will be fogging by truck to control adult mosquitoes, weather permitting.
DATE: Friday, September 25, 2009
TIME: Between 5:30 a.m. and sunrise (7:00 a.m.), weather permitting.
    Two Areas:  Byron and Bethel Island 
The area to be treated is bordered  on the west by Byron Hwy(J4); California Delta Hwy (Hwy 4) on the north; a line extending south of Hwy 4 from the beginning of Discovery Bay Blvd to a line extending from the eastern end of Camino Diablo on the east; Camino Diablo on the south.
Area to be fogged in Byron

The area to be treated is along Taylor Road, from the beginning at Bethel Island Road on the east to the northern end of Taylor Road.

Area to be fogged in Bethel Island

All products used by the Contra Costa Mosquito & Vector Control District are registered with the Environmental Protection Agency for treatment of adult mosquitoes and applied by trained and certified vector control technicians. 
For more information, please visit our website at

Craig Downs
General Manager