2023 Annual Drinking Water Quality Report City of Avondale Public Water System Number: PWS# AZ0407088 City of Phoenix Public Water System Number: PWS# AZ0407025


The City of Avondale is pleased to present to you the 2023 Water Quality Report. Each year, the City publishes a report on the quality of your drinking water. Our continued commitment is to provide safe and reliable water to our community, comply with all environmental and health standards, and anticipate and respond to emergencies in a timely and appropriate manner. Este informe contiene informactión muy importante sobre el agua usted bebe. Tradúscalo ó hable con alguien que lo entienda bien.


Avondale’s Water Sources


Our drinking water is a blend of groundwater and surface water. Our groundwater comes from the West Salt River Valley Sub-Basin aquifer. We rely on a series of wells throughout our service area to pump water from the aquifer and deliver it to our customers. We receive Colorado River (surface) water through an agreement with the City of Phoenix (PWS# AZ0407025) to deliver treated water through its pipeline to Avondale’s distribution system. (See pages 10 and 11 for a description of Avondale’s Water Portfolio and distribution map.)


Why are there contaminants in my drinking water?


Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the U.S. Environmental Protection Agency’s (EPA) Safe Drinking Water Hotline (800- 426-4791). The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals, and in some cases radioactive material and can acquire substances resulting from the presence of animals or from human activity:


6 Microbial contaminants, such as viruses and bacteria, that may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife


6 Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban stormwater runoff, industrial, or domestic wastewater discharges, oil and gas production, mining, or farming


6 Pesticides and herbicides that may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses


6 Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems


6 Radioactive contaminants that can be naturally occurring or be the result of oil and gas production and mining activities


In order to ensure that tap water is safe to drink, the EPA prescribes regulations that limit the amount of certain contaminants in water provided by public water systems. The U.S. Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water which must provide the same protection for public health.


t S Per and polyfluoroalkyl substances (PFAS)


PFAS substances, often called “Forever Chemicals” are a category of manufactured chemicals used in a variety of products from pizza boxes to Teflon. On April 10, 2024, EPA announced the final National Primary Drinking Water Regulation (NPDWR) for six PFAS. This includes legally enforceable levels, called Maximum Contaminant Levels (MCLs). The City of Avondale will continue to monitor, and treat when required, its water sources regularly to ensure customers continue to receive safe drinking water. In addition, the City is currently coordinating with the Arizona Department of Environmental Quality (ADEQ) on PFAS related issues. For more information about PFAS , the new rules and their health effects, please see the EPA’s website at www.epa.gov/pfas.


Lead and Copper Rule Revision and Improvements P


The City of Avondale is currently completing a database preparation of 26,000+ service connections within the City to determine the presence of Lead Service Lines (LSLs). This also includes Galvanized Lines that Require Replacement (GRR) because they contain the possibility of Lead contamination. This process includes a physical verification of services installed pre-1990 and the City anticipates a complete survey with results by October 16, 2024. In addition, the City is currently awaiting further updates from the U.S. Environmental Protection Agency on the Lead and Copper Rule.


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