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C2: Emergency Response Upgrades*

About This Project

This project covers the development of an automated flood warning system that uses real-time rainfall data to predict stream flows and potential flood risk. The system efficiently disseminates information to emergency responders and the public using the web, text, automated calls and other technologies, allowing more time to activate flood-fighting measures and reduce flood damage.


*This project was voter approved as part of the Safe, Clean Water and Natural Flood Protection Program.

On Target
Start FY 2014 / Finish FY 2023
Safe, Clean Water Fund ($3.4 million)
News and UpdatesNews and Updates
Reports and DocumentsReports and Documents
Environmental and Community BenefitsEnvironmental and Community Benefits
History and BackgroundHistory and Background
News & Updates

This past fall, we have upgraded to a more stable hydrologic modeling software on the back end. During the very wet 2017 season, the previous software was stress tested and issues relating to system automation were revealed. The “simpler modeling” strategy we had going into the wet season could not get around the software limitations. So far, it has proven to be extremely stable and less error prone than the old software.

The current system has 5 locations: Upper Guadalupe River, West Little Llagas Creek, San Francisquito Creek, Uvas Creek, and Upper Penitencia Creek. The point on Coyote Creek near Anderson Dam has been deferred to the National Weather Service’s River Forecast Center, and the point on Lower Silver Creek was removed due to the improvement near the Dobern Pedestrian Bridge, eliminating flood risk.

Over the next year, we will focus on completing forecast points for flood prone reaches, including reservoir inflow locations as well, most likely totaling over 7 total locations. Once the hydrologic models are accurate and complete, we will shift our energy to improving the website and the information dissemination services.


Updated January 2019

For more information:


Reports & Documents

No current documents. 

Environmental & Community Benefits

Key Performance Indicator for the Safe, Clean Water Program 

  1. Map, install, and maintain gauging stations and computer software on seven flood-prone reaches to generate and disseminate flood warnings. 


  • Enhances interagency response to storm-related emergencies

  • Improves the accuracy of flood forecasting services

  • Helps municipalities and neighborhoods lessen flood impacts

  • Maintains access to technical resources that assist municipalities with floodplain management

  • Promotes community awareness of flood risks

  • Implements risk reduction strategies consistent with the Federal Emergency Management Agency's (FEMA) Community Rating System as appropriate

Geographic Area of Benefit 



History & Background

About the Safe, Clean Water and Natural Flood Protection Program

In November 2012 the voters of Santa Clara County overwhelmingly approved Measure B, the Safe, Clean Water and Natural Flood Protection Program, as a countywide special parcel tax for 15 years with a sunset date of June 30, 2028. This Program replaced the Clean, Safe Creeks and Natural Flood Protection Plan, which voters approved in November 2000.

The Safe, Clean Water Program was developed with input from more than 16,000 residents and stakeholders and was created to match the community’s needs and values. The voters of Santa Clara County identified five priorities:

Priority A: Ensure a Safe, Reliable Water Supply

Priority B: Reduce Toxins, Hazards and Contaminants in our Waterways

Priority C: Protect our Water Supply from Earthquakes and Natural Disasters

Priority D: Restore Wildlife Habitat and Provide Open Space

Priority E: Provide Flood Protection to Homes, Businesses, Schools and Highways

Other: Six projects from the Clean, Safe, Creeks Plan have been carried forward into the Safe, Clean Water Program.  

Each year, the District prepares a report providing a progress update for each of these Program priorities, along with fiscal year accomplishments.

To ensure transparency and accountability to the voters, the ballot measure also created an Independent Monitoring Committee, appointed by the Santa Clara Valley Water District Board of Directors. The  Independent Monitoring Committee annually reviews the Program’s progress to ensure the outcomes are achieved in a cost-efficient manner and reports its findings to the Board.

In addition, the Program requires three independent audits, the first of which was conducted in FY 2017.

View the Safe, Clean Water Program’s annual reports, annual IMC audit reports, and independent audits, including a staff response, on the District website.