Water Quality & Supply
Where Does My City Water Come From?
Sources of the City of Tracy's water supply include the Delta-Mendota Canal, the Stanislaus River, and groundwater pumped from wells.
Sustainable Groundwater Management
The historic passage of SGMA in 2014 set forth a statewide framework to help protect groundwater resources over the long-term. SGMA is comprised from a three-bill legislative package, including AB 1739 (Dickinson), SB 1168 (Pavley), and SB 1319 (Pavley), and subsequent statewide Regulations. In signing SGMA, then-Governor Jerry Brown emphasized that “groundwater management in California is best accomplished locally.”
SGMA requires local agencies to form groundwater sustainability agencies (GSAs) for the high and medium priority basins. GSAs develop and implement groundwater sustainability plans (GSPs) to avoid undesirable results and mitigate overdraft within 20 years.
In 2017, the City formed an exclusive GSA for its jurisdiction. The other agencies in the area partnered to develop a GSP that was adopted in January 2022.
Water Quality and Control
Under the Federal Safe Drinking Water Act (SDWA), the Environmental Protection Agency (EPA) is responsible for setting national limits for numerous substances in drinking water. The EPA also outlines various treatment processes that water facilities must implement to eliminate these substances. Continuous water treatment monitoring is conducted to ensure that drinking water complies with regulatory standards. The EPA utilizes this data to confirm that consumers receive clean water and to verify that states enforce the laws regulating drinking water.
The annual Consumer Confidence Report under the Safe Drinking Water Act (SDWA) mandates that water utilities provide customers detailed information about water quality every year. The City is dedicated to supplying you, the consumer, with this information about your water supply because well-informed customers are our best allies in advocating for the improvements necessary to maintain the highest standards of drinking water quality.
Recycled Water
The City continues to develop infrastructure to supply recycled water for various irrigation projects within its boundaries. As of March 2025, the City is not yet providing recycled water to the public.