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!


Report Street/Storm Drain Pollution or Irrigation Runoff:


 or e-mail us at  watersheds@sdcounty.ca.gov


To submit a road sweeping request, report potholes, or a clogged storm drain located in Unincorporated San Diego County:

1-877-684-8000 or 1-858-694-3850

or submit your Road Service Request online. 

For concerns about County-maintained roads or storm drains requiring attention after hours, on a weekend, or during a holiday, please call the County After-Hours Answering Service at 1-800-901-7755 



Click on the icons below to learn more about how you can help prevent pollution from entering our streets and storm drains

Contact Information, Frequently Asked Questions & Resources
 Easy to implement tips for in or around your home that reduce pollutants from entering our stormwater conveyance systems
Information and submitting options for structural BMP maintenance requirements
Learn more about County efforts to improve water quality through effective stormwater management and infrastructure investments
 Information on your watershed and ways San Diego County is helping to keep them clean
 Tips and detailed information on BMPs to prevent stormwater pollutants from entering our stormwater conveyance systems
Learn more about Development resources available such as the current County BMP Design Manual and more
Stormwater Regulatory Information
Report Storm Drain Pollution
WPP's Educational Stormwater Resources Library
Learn more about available water quality related rebates and incentives

Watershed Protection Program - E-mail List Serve Bulletins 

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!


For past WPP e-mail list serve bulletin publications, please visit the List Serve Bulletin Archive page.