GAMA - Well Owners - Water Quality in Private Domestic Wells

Domestic well water is typically used by single family homeowners for private use and consumption. It is the responsibility of the well owner to ensure that their domestic well water is safe, since the State of California does not regulate domestic well water quality.

You may have concerns about the water from your domestic well. The information provided on this topic is divided into the following areas to help you find important information about domestic wells:

• Testing your well water
• How to address well water quality problems?
• Domestic well checklist
• Additional domestic well information
• Guide for Domestic Well Owners
• Guía para los dueños de Pozos Domésticos
• GAMA Domestic Well Project
• An interactive map, Is My Property Near a Nitrate-Impacted Water Well?, is available for private domestic well owners to determine their proximity to possibly contaminated wells

For more information on public drinking water systems visit the Division of Drinking Water (DDW) Program website  or contact a DDW Water District.