Emergencies
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.