Staff Directory: Administration Department

Directions

Physical Address: 450 Walnut Meadows Drive, Oakley, CA 94561

Mailing Address: P.O. Box 1105, Oakley, CA 94561

Phone: 925-625-2279

Emergency Phone: 925-625-2279

Fax: 925-625-0169

Email the Main Office

Hours:

Monday - Friday

  • 8 a.m. to Noon
  • 1 p.m. to 5 p.m.

Emergency Situation

If you think there is a problem with ISD's pipeline or facilities, or see flooding coming from a manhole, please call our 24-hour emergency number at (925) 625-2279. After regular business hours your call will be transferred directly to one of our maintenance personnel.