• What is a Watershed?

    A watershed is the total land area, including our yards, from which stormwater drains into streams, rivers or other bodies of water.
    Click here to find your watershed.

  • Watershed Protection Tips for Pet Owners

    Check out the brochure at www.cleanwatershed.org.

  • Watershed Protection Tips for Car Owners

    Get tips on how to be a responsible car owner at www.cleanwatershed.org

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News and Announcements

[NEW] 2018 Technical Guidance Manual (TGM) Errata Update: The 2015 TGM Errata Update was updated in 2018 to correct minor errors and unintentional omissions. Due to the evolving nature of stormwater quality management, the TGM may continue to be updated to correct errors, to incorporate new and innovative control measures, or to add the Hydromodification Control Plan.
[NEW] 2018 Training Workshop on Current Ventura County Stormwater Quality Post Construction Mitigation Requirements: Slides from the June 12, 2018 workshop and links to the recorded videos are now available.
Thomas Fire
The Thomas Fire burned over 281,000 acres in December 2017, mostly in Ventura County, and quickly became the largest recorded fire in California history. Burning through forests, grasslands, orchards, and housing tracts, the fire’s path eventually impacted the area from Fillmore to Santa Barbara, and from Ventura north, through Matilija Canyon, Ojai, and beyond destroying over 1,000 structures.
Fires such as this have many impacts on both the community and our resources, including hazards from ash and toxins, and an increased risk of flooding and landslides. Here are some answers to FAQs about post-fire Water Quality Concerns and Erosion and Sediment Control. The County of Ventura launched a website dedicated to helping victims of the Thomas Fire find information to help their recovery, including debris removal, rebuilding, permits, hazardous materials, health issues, how to get rain ready, and much more. Please visit www.VenturaCountyRecovers.org for more information.
2016-17 Annual Report and Program Accomplishments
Every year the cities and County of Ventura report on Permit compliance and their extensive efforts to improve water quality. Check out our Executive Summary for Program highlights for the 2016-17 water year, including information about water quality in our beaches and streams, new and updated resources we have developed, and projects we've undertaken. Want more details about specific projects or water quality monitoring? The full Annual Report provides an in-depth review of Permit requirements, our prioritized pollutants and the Permittee’s commitments to reduce their impacts.

Report Illegal Dumping/Discharge

Seen something questionable being dumped in a gutter or storm drain?

Help us keep it from happening again. Click the image to report.





Community for a Clean Watershed

How can you help protect the watershed?

The Community for a Clean Watershed website is full of easy, practical tips for residents, businesses, and visitors in Ventura County.

Click the image to find out more.

Ventura Countywide Unified Storm Drain System Map

A Ventura Countywide Unified Storm Drain System Map is now available!

The map was created by mapping natural and engineered drainage system linkages using available topographic information, construction record drawings, and other sources and combining it with existing storm drain data.

What's the big deal about runoff?

Runoff carries pollutants. Water that doesn't soak into the ground becomes runoff. Click here for ten easy tips to help reduce runoff.

How does runoff impact me?

Runoff carries pollutants through our watershed, which can then cause issues for people and wildlife. Find out more.

What role does VCSQMP play?

VCSQMP works to improve runoff quality, monitor watershed health, and comply with the Ventura Countywide Stormwater Permit.

How is our River Water Quality?

River water quality has improved in Ventura County since 2003/04 and is generally good. Click here to find out more.

Order No. R4-2010-0108 (Current Permit, adopted July 8, 2010)
Note: Large files may be slow to load.

2016-17 Annual Report Cover

[NEW] 2017 Annual Report (December 2017)

Main Report
Attachments A - C (Inspection Checklists)
Attachment D1 (Monitoring Appendix A-E)
Attachment D2 (Monitoring Appendix F)
Attachment D3 (Monitoring Appendix G)
Attachment D4 (Monitoring Appendix H-L)
Attachment E1 (TMDL Reports part I)
Attachment E2 (TMDL Reports part II)
Cover Letter
Executive Summary

2016 Annual Report (December 2016)

Main Report
Attachments A - C (Inspection Checklists)
Attachment D1 (Monitoring Appendix A-E)
Attachment D2 (Monitoring Appendix F)
Attachment D3 (Monitoring Appendix G-H)
Attachment D4 (Monitoring Appendix I-K)
Attachment E1 (TMDL Reports Volume I)
Attachment E2 (TMDL Reports Volume II)
Attachment F (MUN Beneficial Use Review)
Cover Letter
Executive Summary

2015 Annual Report (December 2015)

Main Report (revised 4/6/2018)
Attachments A - C
Attachment D
Attachment E1
Attachment E2
Attachment E3
Attachment E4
Attachment E5
Attachment E6
Attachment E7
Attachment E8
Attachment E9
Attachment E10
Attachment E11
Attachment E12
Attachment E13
Attachment E14
Attachment E15
Attachment E16
Attachment E17
Cover Letter

2014 Annual Report (December 2014)

Main Report
Attachments A - C
Attachment D, App A,B
Attachment D, App C, D, E
Attachment D, App F
Attachment E (1 of 2)>
Attachment E (2 of 2)
Attachment F
Cover Letter

2013 Annual Report (December 2013)
Main Report
Attachments A - C
Attachment D
Attachment E
Cover Letter

2012 Annual Report (December 2012)
Main Report
Attachments A - D
Attachment E: Monitoring Appendices A - E
Attachment E: Monitoring Appendix F
Attachment E: Monitoring Appendices G - J
Cover Letter

2011 Annual Report (December 2011)
Main Report
Cover Letter
Attachment F - 2011 Water Quality Monitoring Report
Main Report


Order No. R4-09-0057 (adopted May 7, 2009)

2010 Annual Report (December 2010)
Cover Letter
Main Report
Attachment F - 2010 Water Quality Monitoring Report
Main Report