Documents and Resources

Groundwater Monitoring Plans, Reports, and Surveys

The Annual Reports provide the latest information on efforts underway since 2008 by Napa County and others to implement groundwater management actions to better understand groundwater conditions, establish monitoring to track conditions, conduct education and outreach, and develop programs to assess and maintain groundwater sustainability.

• 2020 Napa County Annual Groundwater Monitoring Report PDF  PDF  PDF 
  • 2020 Napa County Annual Groundwater Monitoring Report Summary PDF 
• 2019 Napa County Annual Groundwater Monitoring Report PDF  PDF  PDF  PDF 
  • 2019 Napa County Annual Groundwater Monitoring Report Summary
• 2018 Napa County Annual Groundwater Monitoring Report PDF  PDF  PDF  PDF 
  • 2018 Napa County Annual Groundwater Monitoring Report Summary
• 2017 Napa County Annual Groundwater Monitoring Report PDF  PDF  PDF  PDF 
  • 2017 Napa County Annual Groundwater Monitoring Report Summary
• 2016 Napa County Annual Groundwater Monitoring Report PDF  PDF  PDF  PDF 
• 2015 Napa County Annual Groundwater Monitoring Report PDF  PDF  PDF  PDF  PDF  PDF 
• 2014 Napa County Annual Groundwater Monitoring Report PDF  PDF 

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General Documents

• Map of the Napa Valley Subbasin PDF  PDF  PDF  
• Stakeholder Communication & Engagement Plan (CEP)
• Groundwater Sustainability Plan Advisory Committee (GSPAC) Bylaws
• Napa Groundwater Sustainability Plan Advisory Committee (GSPAC) Ground Rules 
• Napa Groundwater Sustainability Plan Advisory Committee (GSPAC) Committee Role & Charge 
• 2013 Napa County Groundwater Monitoring Plan PDF  PDF  PDF 
  Learn about the County’s approach to tracking groundwater levels and quality.
• 2011 Napa County California Statewide Groundwater Elevation Monitoring (CASGEM) Network Plan Updated in 2014 PDF  PDF  PDF 
  Learn about California’s plan to monitor groundwater levels to study seasonal and long term groundwater trends in all basins and subbasins.
• 2011 Groundwater Conditions & Monitoring Recommendations PDF  PDF  PDF 
  Learn about the County’s plans to study groundwater conditions and trends, expand the monitoring program, and the hydrology of the Napa Valley Subbasins.
• 2010 Groundwater Stakeholder Assessment PDF  PDF  PDF 
  Learn about County efforts to create a plan to collaborate with well owners to gather groundwater data. 

Understanding California Groundwater

• California Department of Water Resources SGMA Groundwater Management
  Learn about the Sustainable Groundwater Management Act.
• California Water Code on SGMA Regulations
  Find information about the California Sustainable Groundwater Management laws and regulations.
• California Code of Regulations - Groundwater Sustainability Plans
  Find information about the California Groundwater Sustainability Plan laws and regulations.
• Department of Water Resources Sustainable Groundwater Management Portal
  Submit, edit, and view information for the Sustainable Groundwater Management Act.
• California Department of Water Resources Sustainable Groundwater Management Program Resource Guide PDF  PDF  PDF 
  Learn about the Department of Water Resources climate change resources for use for developing Groundwater Sustainability Plans (GSPs).
• California Department of Water Resources – Groundwater Management
  Learn about groundwater in California from the Department of Water Resources.
• Understanding California’s Groundwater – Stanford University
  Learn about groundwater in the West from the Stanford Woods Institute for the Environment and the Bill Lane Center for the American West.
• Groundwater Exchange
  Share ideas and learn about resources for successful implementation of the Sustainable Groundwater Management Act with stakeholders, agencies, and more.

Understanding Ecosystems

• Groundwater Resource Hub
  Learn about the Sustainable Groundwater Management Act (SGMA) and Groundwater Dependent Ecosystems (GDEs) from The Nature Conservancy.
• Fish & Wildlife
  Learn about considerations for fish and wildlife during groundwater planning from the California Department of Fish and Wildlife.
• Freshwater Wetlands
  Learn about the importance of groundwater in Wetlands from the California Department of Fish and Wildlife.
• Napa Valley Groundwater and Surface Water Connections
  Learn about monitoring efforts in Napa County to promote groundwater and surface water sustainability and the important connections between them. 

Wells

• Napa County Well Owners Guide - 2017 PDF  PDF  PDF  
• Private Groundwater Wells
  Learn about well basics, water safety, sites, testing, and maintenance of private wells on this website from the Centers for Disease Control and Prevention (CDC).
• National Groundwater Association University Resources & Videos
  Learn about your well, maintenance, and removing chemicals from your water in this video series.
• National Groundwater Association Well Owners Guide
  Download a copy of the NGWA Well Owners Guide about well construction, routine maintenance, water testing, and more.