Contact Us

CAS MOVE

OC Public Works Headquarters

County Administration South

601 North Ross Street, Santa Ana, CA 92701. Click map icon  here for directions.  

Hours of Operations: Monday - Friday | 8:00 am to 5:00 pm

Mailing Address: P.O. Box 4048, Santa Ana, CA 92702-4048
Phone: phone icon 714.667.8800

To submit an online service request, please visit our new Online Service Request Center MyOCeServices

If you need to report a flood emergency, please call 9-1-1 immediately.

Administrative Services - starting 9/16/19

601 North Ross Street, Santa Ana, CA 92701. Click map icon  here for directions.  

  • Director’s Office and Administration, 4th Floor
  • Building Services, 2nd Floor
  • Human Resource Services, 4th Floor

OC Development Services - starting 9/16/19

601 North Ross Street, Santa Ana, CA 92701. Click map icon  here for directions.  

  • County Service Center, 1st Floor
  • Permitting
  • Building and Safety
  • Inspection Services
  • Land Development
  • Planning

Hours of Operations: Monday - Friday | 8:00am to 4:00pm

Phone: phone icon 714.667.8888

OC Survey - starting 9/16/19

601 North Ross Street, Santa Ana, CA 92701. Click map icon  here for directions.  

  • OC Survey Public Counter, County Service Center, 1st Floor
  • Corner Records
  • Geodetic
  • Parcel, Record of Survey and Tract Maps
  • Right-of-Way Engineering Public Counter, Room 252

Hours of Operations: Monday - Friday | 8:00 am to 4:00 pm

Phone: phone icon 714.967.0852

OC Infrastructure Programs - starting 9/16/19

601 North Ross Street, Santa Ana, CA 92701. Click map icon  here for directions.  

  • Programming
  • Engineering Design
  • Flood Programs
  • Project Management
  • Traffic and Development Support

Hours of Operations: Monday - Friday | 7:30am to 4:00pm

Phone: phone icon 714.647.3999 | 714.245.4589

OC Facilities Design and Construction Management - starting 9/16/19

601 North Ross Street, Santa Ana, CA 92701. Click map icon  here for directions.  

Phone: phone icon 714-667-4938

Other Office Locations

Glassell Campus

OC Operations & Maintenance

2301 Glassell Street, Building A, Orange, CA 92865. Click map icon  here for directions.  

Hours of Operations: Monday - Friday | 6:00 AM - 4:30 PM

Phone: phone icon 714-955-0200

To submit an online service request, please visit our new Online Service Request Center MyOCeServices

OC Environmental Resources

Agricultural Commissioner / Sealer of Weights & Measures

222 East Bristol Lane, Orange, CA 92865. . Click map icon  here for directions.  

Mailing Address: P.O. Box 4048, Santa Ana, CA 92702-4048

Hours of Operation: Monday - Friday | 8:00 am to 12:00 pm/1:00 pm to 5:00 pm

Phone: phone icon 714.955.0100

To submit an online service request, please visit our new Online Service Request Center MyOCeServices

OC Environmental Resources (Watersheds)

2301 North Glassell Street Orange, CA 92865. Click map icon  here for directions.  

Mailing Address: P.O. Box 4048, Santa Ana, CA 92702-4048

Hours of Operations: Monday - Friday | 8:00 am to 5:00 pm

Phone: phone icon 714-955-0600

24-Hour Water Pollution Hotline - 1-877-89-SPILL (77455)

To submit an online service request, please visit our new Online Service Request Center MyOCeServices

Fruit Street Campus

OC Construction

1152 East Fruit Street, Santa Ana, CA 92701. Click map icon  here for directions.  

Mailing Address:  P.O. Box 4048, Santa Ana, CA 92702-4048

Hours of Operations: Monday - Friday | 8:00 am to 5:00 pm

Phone: phone icon 714.245.4500

To submit an online service request, please visit our new Online Service Request Center MyOCeServices

OC Facilities Maintenance & Central Utility Facility 

1152 E. Fruit St, Santa Ana, CA 92701-4204. Click map icon  here for directions.  

Phone: phone icon 714.647.3999

OC Fleet Services

Transportation Fleet Management - Repair Shop #1
1143 E. Fruit Street, Santa Ana, CA 92701-4204. Click map icon  here for directions.  

Hours of Operations: Monday - Friday | 7:00 AM - 5:00 PM

Phone: phone icon 714-567-7744

OC Facilities Maint & Central Utility Facility

1143 E. Fruit Street, Santa Ana, CA 92701-4204. Click map icon  here for directions.  
Compressed Natural Gas (CNG) Fueling Station
Operating Hours: 7 Days/24 Hours Self-Serve Fueling
Products Available: Compressed Natural Gas 2023 W. Collins Avenue
Orange, CA 92867