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California (Region 9)

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Contacts for California

Contact Category:
Source Water Protection Program
Sole Source Aquifer Program

Source Water Protection Program

  • Leah G. Walker, P.E.
    California Department of Health Services, Drinking Water Technical Programs Branch
    50 D St, Suite 200
    Santa Rosa, California 95404
    Phone: 707-576-2295  
    Email: lwalker2@dhs.ca.gov

 

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Links for California

   State Drinking Water Protection Web Sites

   State Drinking Water Protection Web Sites

 

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Publications for California

Aquifer Maps
Maps, produced by the EPA Region 9 Geographic Information System (GIS) Center, showing the designated area of Region 9 aquifers.
Document Type: Publication
Date Published: Unknown

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Case Studies for California

    Title: California: Contra Costa County
    Subtitle: Diverse Measures Protect CA Watershed 
    Case Study Type: Assessment and Protection 
    Description: The Contra Costa Water District (CCWD) in northern California supplies water to over 430,000 people in Contra Costa County. The primary source of water for this system is the surface water of the Sacramento-San Joaquin Delta. The Sacramento and San Joaquin Rivers flow from the mountains and join at the Delta.  


    Title: California: Hidden Valley Lake
    Subtitle: CA Rural Water Association Assists Subdivision Committee 
    Case Study Type: Protection 
    Description: California's Hidden Valley Lake community of 5,500 people relies on groundwater that is vulnerable to contamination from residential, agricultural, urban and industrial sources. To confront these threats, the Hidden Valley Lake Steering Committee and the California RWA jointly developed a SWP plan focusing on outreach and the development of more robust source protection schemes. Planned educational efforts include community meetings to introduce the plan to residents, outreach to schools and businesses on storm water impacts to drinking water sources, and demarcation of storm drains. In addition, the plan suggests that the Community Services District consider paying for proper abandonment of wells that threaten the water supply. Finally, the plan encourages the County to enact a WHP ordinance and to expand WHP zones to make vulnerability analyses more inclusive. 


    Title: California: Lake Berryessa Watershed Partnership, Napa and Yolo Counties
    Subtitle: To Address High Threat Activities in CA Surface Water 
    Case Study Type: Protection 
    Description: Serving 500,000 people in Northern California's Yolo and Napa Counties, Lake Berryessa is a tourist attraction and a drinking water supply. Current threats include boats and other watercraft, nearby underground storage tanks, contaminant plumes, and gas stations. The Lake Berryessa Watershed Partnership of agency stakeholders and citizen groups formed in 1999 to address these threats. Specific goals of the Partnership include educating lake users and local residents about water quality issues, implementing BMPs for high-risk activities and conditions, contingency planning, water quality monitoring, and developing a SWP plan for the Lake. 


    Title: California: Source Water Assessment and Protection Educational Booklets
    Subtitle: University Leads State-wide SWAP Education 
    Case Study Type: Assessment and Protection 
    Description: To help the 3,000-plus CWSs in California implement successful SWAP programs, the University of California at Davis is developing educational booklets to guide local authorities and SWAP personnel. In 2004, a team of contributors, led by UCD, and including the CA Department of Human Services, California State University, and several consulting firms, developed numerous informative SWA booklets covering such topics as SWAP legislation, monitoring methods, SWP zoning, and water quality. 


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