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Water Quality Data So far you have learned a little more about where our water comes from and how we get it from the source to your home. While we are delivering it, the City of Peoria regularly monitors for a wide variety of compounds in your drinking water in accordance with federal and state laws and local water quality guidelines. The tables and notes that appear on the following pages provide a detailed chemical analysis of Peoria’s water supply for calendar year 2001. Arsenic — Why Are We Talking About It? - The current federal and state maximum contaminant level (MCL) for arsenic is 50 parts per billion. Keep in mind that one part per billion (ppb) is equal to one penny in $10 million. In 2006, the Environmental Protection Agency will lower the MCL for arsenic from 50 ppb to 10 ppb. |
Peoria regularly monitors for a wide variety of compounds in your drinking water in accordance with federal and state laws and local water quality guidelines. |
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Currently, it is unclear how this change will affect Peoria’s water treatment systems. Since arsenic is found naturally in rocks and soil, it is often found in the groundwater that is pumped from those mineral deposits. It is important to note that the arsenic level in Peoria’s water system is below the maximum amount allowed under current water quality regulations. In order to determine the potential impacts of the change, the Utilities Department will be conducting an arsenic study in 2002 to evaluate financial impacts and identify options to meet the new regulations. Water Quality Standards - How Do I Learn More? The following web sites provide more information about drinking water quality standards in Arizona and the United States: |
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| United States Environmental Protection Agency (EPA) | |
| Arizona Department of Environmental Quality | |
| Maricopa County Environmental Services | |
| City
of Peoria Water Conservation
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| Our Water Supply |
Preserve and Conserve | Valves and Pipes |
Improving Service | |
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