Resources for Well Owners

Dry or Damaged Wells

Well Owners Guide PDF

A printable guide that covers well construction, maintenance, and water quality protection for private well owners in Napa County.

Be Well Prepared

Learn about the Department of Water Resources program, which empowers domestic drinking water well users by providing the information and resources they need to maintain a safe and reliable household water supply.

Do-It-Yourself Groundwater Monitoring

Napa County has a Groundwater Self-Monitoring Program. This DIY program offers training and a special Solinst measuring device to determine the depth to water in most wells.

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. 

Voluntary Groundwater Level Monitoring Program

The Voluntary Groundwater Level Monitoring Program measures groundwater levels in spring and fall. These measurements improve the understanding of groundwater for both the well owner and the County.