Watershed Protection Program
The County of San Diego Watershed Protection Program (WPP)
helps to ensure that our waterways are protected by preventing
pollutants from entering the County’s storm drain system in
compliance with our municipal Stormwater permit.
WPP conducts outreach, inspection and complaint investigations for commercial, industrial, and residential properties in the unincorporated portions of the County to reduce pollutants from entering streets and storm drains. WPP is also responsible for developing and conducting monitoring programs, assessing scientific data, providing assistance to other County departments, as well as developing training to stakeholders on stormwater regulations.
With your help, we can keep our waterways clean!
Click on the icons below to learn more about how you can help prevent pollution from entering our streets and storm drains
WPP sends out e-mail bulletins about community participation events
and helpful reminders on protecting water quality. Find recent
bulletins below and click on the stormwater subscription topic
below to sign up and get them delivered straight to your inbox!
| Publication Date | Bulletin Topic |
| May 1, 2026 | Memorial Day Holiday Pollution Prevention Tips |
| April 30, 2026 | Spring Has Sprung at These May Garden Events and Other County-Wide Activities! |
| April 3, 2026 | Creek to Bay: Nurdles, Balloons & Cigarette Butts Focus |
| March 26, 2026 | Support Cleaner Waterways by Joining These April Earth Month Events and More! |
| March 17, 2026 | March 2026 - Green Infrastructure Program Monthly Update |
| March 6, 2026 | The Watershed Approach to Landscaping and Pollution Prevention |
For past WPP e-mail list serve bulletin publications, please visit the List Serve Bulletin Archive page.
Popular Services