Annual Water Quality Report

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Important Information About Your Water Quality

Este informe contiene información muy importante sobre su agua potable. Tradúzcalo o hable con alguien que lo entienda bien.

这份报告含有关于您的饮用水的重要讯息。请用以下地址和电话联系

View the most recent report: 2024 Water Quality Report

The 2024 Water Quality Report (also called the Consumer Confidence Report) provides information regarding your drinking water and covers water quality data from January 1, 2024, through December 31, 2024. This report contains details about the constituents detected in your drinking water, general information regarding the sources of water and how that water is delivered to your home, as well as other related topics, such as water conservation tips.

In 2024, the City’s water supply did not have any exceedances of the maximum contaminant levels for water quality. The City delivered 3.2 billion gallons of drinking water in 2024 - 80% of which was surface water from the Sacramento River and 20% was groundwater from underlying aquifers. The delivery of surface water and using groundwater primarily from the deep aquifer has significantly improved the quality of the City’s drinking water.

The City is required to monitor drinking water for specific constituents on a regular basis, either weekly, monthly, quarterly or annually depending on the constituent. Samples are collected from sampling stations within the distribution system, at municipal groundwater wells and as surface water enters the City.

The report includes both the range and the weighted average for each detected constituent. The range accounts for the lowest and highest reported concentration for the constituent in samples collected during the year. The weighted average takes into consideration the general chemical makeup of the source water based on the percentage of each source used.

This report is prepared in accordance with the U.S. Environmental Protection Agency (U.S. EPA) and the State Water Resources Control Board - Division of Drinking Water regulations under the Safe Drinking Water Act that requires water providers to report annual water quality information to their customers. This publication lists all constituents detected in your water supply over the last nine years and information about your water source, what it contains, how it compares to state and federal standards, and other related information.

To request an electronic or paper copy of the report or to speak with someone about the report send an email to Water@CityofDavis.org or call Public Works Utilities and Operations at 530-757-5686.

Previous Annual Water Quality Reports

The following documents are maintained for archival purposes and to meet state and/or federal requirements and may not meet current accessibility standards (WCAG 2.1 AA). If you need this information in an accessible format, please contact water@cityofdavis.org and we will provide it in a timely manner upon request.