Required Certification Information for California Employees

Many positions at California Water Service require a Water Distribution and/or Water Treatment Certification issued by the State Water Resources Control Board.

If you are interested in obtaining certification, you will need to attend a class, receive online education, or take a correspondence course in a specialized area of training. Organizations offering courses that are accepted by DPH are:

Correspondence courses
CSUS Foundation Office of Water Programs
CSU Sacramento
6000 J Street
Sacramento, CA 95819-6025

Seminars or online learning
American Water Works Association (AWWA)
6666 W. Quincy Avenue
Denver, CO 80235

Online interactive education

After completing your specialized training, you will need to apply for testing with DPH. To apply, contact DPH at:

Department of Public Health
Division of Drinking Water and Environmental Management
Operator Certification Program
P.O. Box 997377, MS7417
Sacramento, CA 95899-7377

Water Treatment certification tests are held in May and November. Water Distribution certification tests are held April and October.