Contact Us

Here is information on how to contact us:

Click to reach our email page.

Direct Email - 24 hours a day

To visit us:
Los Angeles County Department of Public Works
Geotechnical & Materials Engineering Division
900 S. Fremont Avenue, 4th floor
Alhambra, CA 91803 - Get Map

Monday-Thursday, 6:30am - 5pm
except on holidays

To send us mail:
Los Angeles County Department of Public Works
Geotechnical & Materials Engineering Division
P.O. Box 1460
Alhambra, CA 91802-2460

To call us:
(626) 458-4923

To fax us:
(626) 458-4913