Security for the community of Diablo is provided by the District through a contract with the Contra Costa County (CCC) Sheriff’s Office.  The District has its own police vehicle and a dedicated deputy, plus a contract with the Sheriff’s Office to provide additional hours of patrol.  In case of emergency, always call 911.  For all other non-emergency situations, contact the CCC Sheriff’s Office .  The District’s dedicated deputy is Dan Buergi.

  • Emergency: 911
  • CCC Sheriff (non emergency): 925 646-2441


Vacation House Checks - The sheriff provides vacation house check services to Diablo residents upon request. To request a vacation house check please complete the form at this link Vacation Form and call the CCC non-emergency phone number.


Parking in Diablo​ - Parking vehicles opposite each other on both sides of the street is prohibited in Diablo because the roads are narrow and  it obstructs passage of emergency vehicles.  Park on one side only.

Security & Roads


Roads & Bridges


Roads, bridges and culverts in Diablo and Kay’s Trail (the equestrian trail between Alameda Diablo and Mt Diablo Scenic) are maintained by the District.  Routine and emergency maintenance is contracted out to the MCE Corporation and large projects are contracted out through a bidding process.  In the event of a emergency that impacts the roads or bridges, please contact a DCSD Board member or the DCSD General Manager (see Board of Directors tab for contact info).  


In the event of a fallen tree, MCE can be contacted to remove the tree at the homeowner’s expense.

  • The MCE emergency response:  925 452-2731 
  • In the event of water emergencies (i.e. water main break, broken hydrant) contact EBMUD at 866 403-2683



Security