The Water Division is responsible for the operation, maintenance, and improvement of the municipal water system serving more than 84,000 people in the City of Napa and adjacent areas.  The Division is dedicated to providing a safe and reliable supply of high-quality drinking water for its residential, commercial, industrial, and institutional customers.  

 A comprehensive review of the City's water system is contained in the Urban Water Management Plan.  The Plan describes and evaluates water supply sources, projected demand, water conservation and water shortage contingency programs, and overall water service reliability through 2030.

Click the following links for details on specific Water Division topics: 

• Water System Overview
• Jamieson Canyon Water Treatment Plant Improvements Project
• Water Conservation
• Water Quality
• Water Rates and Fees
• New Water Service Installation
• Standard Specifications

Contact Water Division administrative staff at 707-257-9521.  Our downtown Napa headquarters is located at 1340 Clay Street, and is open weekdays 8am to 5pm.  For after-hours water emergencies, please call 707-253-4451.