Report illegal dumping in storm drains and drainage ditches in unincorporated Santa Clara County
To report illegal discharges or accidental releases to a storm drain, drainage ditch, or culvert in the unincorporated Santa Clara County, please contact the Watershed Protection Division during business hours at (408) 918-4609, email us at [email protected], or submit the form below.
If an incident occurs after-hours or on weekends, please call (408) 299-2507 to reach the County of Santa Clara Roads and Airports Department.
When do you report an illegal dumping or discharge?
- If you see a person dumping anything into the storm drain or creek
- When you notice unusual odors in or near the storm drain
- When you observe materials in or near the storm drain
- When you see water leaks that flow to a storm drain
- When the storm drain system has flowing water during dry periods
To report all other incidents of dumping or discharge, please call the County’s centralized Illegal Dumping Hotline at (408) 299-5770 and staff will route a service request to the appropriate County department.
Form is only for discharges in unincorporated Santa Clara County
If you want to report a discharge in one of the South Bay’s cities, see "Report a storm drain discharge outside unincorporated Santa Clara County” below.
Discharge of anything other than clean rainwater into storm drains is illegal because it carries water directly to the nearest creek without treatment that can be a serious threat to fish, wildlife, drinking water and marine life. The discharge may range from a leaking vehicle or pool water discharge, to illegal dumping of hazardous waste.
Report a storm drain discharge outside unincorporated Santa Clara County
Call the following numbers to report illegal discharge within a South Bay city.
| Agency NAME | Phone Number: Business Hours | Phone Number: After Hours | Hazardous Waste and/or Emergency |
|---|---|---|---|
| City of Campbell | (408) 354-5385 | --- | 911 |
| City of Cupertino | (408) 777-3354 or (408) 777-3269 | (408) 299-2507 | --- |
| City of Los Altos | (650) 948-0482 or (650) 948-8223 | --- | 911 |
| Town of Los Altos Hills | (650) 941-7222 or (408) 299-3233 | --- | --- |
| Town of Los Gatos | (408) 354-5385 | --- | 911 |
| City of Milpitas | 911 | --- | --- |
| City of Monte Sereno | (408) 354-5385 | --- | 911 |
| City of Mountain View | (650) 903-6329 | (650) 903-6395 | --- |
| City of Palo Alto | (650) 329-2413 | --- | --- |
| City of San Jose | (408) 945-3000 | --- | --- |
| City of Santa Clara | (408) 615-3080 | (408) 615-5580 | --- |
| City of Saratoga | (408) 354-5385 | --- | 911 |
| City of Sunnyvale | (408) 730-7260 | --- | 911 |
| Valley Water (Santa Clara Valley Water District) | (888) 510-5151 | --- | 911 |
| CA State Water Board Region 2 - SF BAY | (510) 622-2300 | --- | --- |
| CA State Water Board Region 3 - Central Coast | (805) 549-3147 | --- | --- |
| CA Dept of Fish and Wildlife Region 3 - Bay Delta | (707) 428-2002 | --- | --- |