Contact Us

Central Contra Costa Sanitary District
5019 Imhoff Place
Martinez, CA 94553

(925) 228-9500

To Report Sewer Emergencies: (925) 933-0990

Emergencies & Treatment Plant:  24 hours
Business Offices:  Monday-Friday, 8 a.m. to 5 p.m.
Permit Counter:  Monday-Friday, 8 a.m. to 5 p.m.

A complete list of contact phone numbers and emails is on our website.

For general inquiries, please email us or complete this form: