Contact Water Pollution Control


To report a sewer spill or storm water backup:
During business hours (7:30-4:00): Call 510-577-3434
After hours or if no answer: Call 911. 

Contact the Treatment Plant

Phone: 510-577-3434

Mailing address:
3000 Davis Street
San Leandro, CA 94577

Contact Environmental Services

For questions involving pretreatment permits or hazardous material storage or disposal (CUPA), contact the Environmental Services team.