• 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] 2022-23 Annual Report 
Every year the cities and County of Ventura report on Permit compliance and their extensive efforts to improve water quality. Check out our 2023 Annual Report for reporting for the 2022-23 water year, including information about water quality in our beaches and streams, new and updated resources we have developed, and projects we've undertaken.
Countywide Watershed Management Program Development 
A public outreach meeting on the Countywide Watershed Management Program Development was held at the City of Camarillo Council Chambers on July 24, 2023. View the recording here: https://www.youtube.com/watch?v=DkZ5I840TxY.
Regional MS4 Permit Adopted July 23, 2021 
The Los Angeles Regional Water Quality Control Board adopted the Regional Phase I Municipal Separate Storm Sewer System (MS4) National Pollutant Discharge Elimination System (NPDES) Permit, Order No. R4-2021-0105 (Permit), on July 23, 2021 and it became effective on September 11, 2021. The Permit applies to Ventura and Los Angeles Counties and all incorporated cities therein, and supersedes the three Orders that previously covered the area, R4-2010-0108 (Ventura County), R4-2012-0175 (L.A. County except for the City of Long Beach), and R4-2014-0024 (City of Long Beach). Many decisions and actions are required of the permittees in the first 30 months following the Permit effective date. Key among them are deciding whether to implement a Watershed Management Program, Monitoring Program coordination, and filing the corresponding Notices of Intent. See the new Permit for details.

Quick Links

[NEW] 2023 Annual Report

New Regional Permit

Technical Guidance Manual 2018 Errata Update

2018 Post Construction Mitigation Requirements Workshop

Post-Wildfire Resources

Ventura Countywide Unified Storm Drain Map

Report of Waste Discharge

Clean Business Fact Sheets

Ventura County Rainfall Map

Articles

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. R4-2021-0105 (New Regional Permit, adopted July 23, 2021) and R4-2010-0108 (Previous Ventura Countywide Permit, adopted July 8, 2010)
Note: Large files may be slow to load.

[NEW] 2023 Annual Report (December 2023)

►Cover Letter
►Permittee Report - Camarillo
►Permittee Report - County
►Permittee Report - Fillmore
►Permittee Report - Moorpark
►Permittee Report - Ojai
►Permittee Report - Oxnard
►Permittee Report - Port Hueneme
►Permittee Report - Santa Paula
►Permittee Report - Simi Valley
►Permittee Report - Thousand Oaks
►Permittee Report - Ventura
►Permittee Report - VCWPD
►Attachment A - Monitoring Report
►Attachment A - Monitoring Appendix A-E
►Attachment A - Monitoring Appendix F-H
►Attachment A - Monitoring Appendix I - Part 1
►Attachment A - Monitoring Appendix I - Part 2
►Attachment A - Monitoring Appendix J-L
►Attachment A (Water quality monitoring data in CEDEN format) This email address is being protected from spambots. You need JavaScript enabled to view it..
►Attachment B - Countywide PIPP Report
►Attachment B - Countywide PIPP - EcoHero

2022 Annual Report (December 2022)

►Main Report
►Attachments A - C (Inspection Checklists)
►Attachment D (Monitoring Appendix A-E)
►Attachment D (Monitoring Appendix F-H)
►Attachment D (Monitoring Appendix I - Part 1)
►Attachment D (Monitoring Appendix I - Part 2)
►Attachment D (Monitoring Appendix J-M)
►Attachment D (Water quality monitoring data in CEDEN format) This email address is being protected from spambots. You need JavaScript enabled to view it..
►Attachment E (TMDL Reports Part 1)
►Attachment E (TMDL Reports Part 2) 
►Attachment E (TMDL Reports Part 3)
►Attachment E (TMDL Reports Part 4)
►Attachment E (TMDL Reports Part 5)
►Attachment E (TMDL Reports Part 6)
►Attachment E (TMDL Reports Part 7)
►Attachment E (TMDL Reports Part 8)
►Attachment E (TMDL Reports Part 9)
►Attachment E (TMDL Reports Part 10)
►Attachment E (Calleguas Creek Watershed TMDLs Year 13 AMR Files) This email address is being protected from spambots. You need JavaScript enabled to view it..
►Attachment F (Permittee Attachments H-I_Camarillo)
►Attachment F (Permittee Attachments H-I_County Unincorporated_revised)
►Attachment F (Permittee Attachments H-I_Fillmore)
►Attachment F (Permittee Attachments H-I_Moorpark)
►Attachment F (Permittee Attachments H-I_Ojai)
►Attachment F (Permittee Attachments H-I_Oxnard)
►Attachment F (Permittee Attachments H-I_Port Hueneme)
►Attachment F (Permittee Attachments H-I_Santa Paula)
►Attachment F (Permittee Attachments H-I_Simi Valley)
►Attachment F (Permittee Attachments H-I_Thousand Oaks)
►Attachment F (Permittee Attachments H-I_Ventura)
►Attachment F (Permittee Attachments H-I_Ventura County Watershed Protection District)
►Cover Letter
►Executive Summary

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

2021 Annual Report (December 2021)

►Main Report
►Attachments A - C (Inspection Checklists)
►Attachment D (Monitoring Appendix A-E)
►Attachment D (Monitoring Appendix F-G)
►Attachment D (Monitoring Appendix H-L)
►Attachment E (TMDL Reports Part 1)
►Attachment E (TMDL Reports Part 2) 
►Attachment E (TMDL Reports Part 3)
►Attachment E (TMDL Reports Part 4)
►Attachment E (TMDL Reports Part 5)
►Attachment E (TMDL Reports Part 6)
►Attachment E (Calleguas Creek Watershed TMDLs Year 12 AMR Files) This email address is being protected from spambots. You need JavaScript enabled to view it..
►Cover Letter
►Executive Summary

2020 Annual Report (December 2020)

►Main Report
►Attachments A - C (Inspection Checklists)
►Attachment D (Monitoring Appendix A-E)
►Attachment D (Monitoring Appendix F-G)
►Attachment D (Monitoring Appendix H-L)
►Attachment E (TMDL Reports Part 1)
►Attachment E (TMDL Reports Part 2) 
►Attachment E (TMDL Reports Part 3)
►Attachment E (TMDL Reports Part 4)
►Attachment E (TMDL Reports Part 5)
►Attachment E (TMDL Reports Part 5a)
►Attachment E (TMDL Reports Part 5b)
►Cover Letter
►Executive Summary

2019 Annual Report (December 2019)

►Main Report
►Attachments A - C (Inspection Checklists)
►Attachment D (Monitoring Appendix A-E)
►Attachment D (Monitoring Appendix F-G)
►Attachment D (Monitoring Appendix H-K)
►Attachment E (TMDL Reports Part 1)
►Attachment E (TMDL Reports Part 2) 
►Attachment E (TMDL Reports Part 3)
►Cover Letter
►Executive Summary

2018 Annual Report (December 2018)

►Main Report
►Attachments A - C (Inspection Checklists)
►Attachment D (Monitoring Appendix A-E)
►Attachment D (Monitoring Appendix F-G)
►Attachment D (Monitoring Appendix H-L)
►Attachment E (TMDL Reports Part 1)
►Attachment E (TMDL Reports Part 2) 
►Attachment E (TMDL Reports Part 3)
►Cover Letter
►Executive Summary

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
►Appendices

 

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
►Appendices