Drinking Water Notice – Elevated Nitrate Levels
News Source: City of Eloy
City of Eloy water has high levels of nitrate –
DO NOT GIVE THE WATER TO INFANTS UNDER 6 MONTHS OLD OR USE IT TO MAKE INFANT FORMULA
Water sample results collected 1-30-26 showed nitrate levels of 11 mg/L. This is above the nitrate standard, or maximum contaminant level (MCL), of 10 mg/L. Nitrate in drinking water is a serious health concern for infants less than six months old.
Nitrate in drinking water can come from natural, industrial, or agricultural sources (including septic systems and run-off). Levels of nitrate in drinking water can vary throughout the year.
What should I do? What does this mean?
- DO NOT GIVE THE WATER TO INFANTS. Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue baby syndrome. Blue baby syndrome is indicated by blueness of the skin. Symptoms in infants can develop rapidly, with health deteriorating over a period of days. If symptoms occur, seek medical attention immediately.
- Water, juice, and formula for children under six months of age should not be prepared with tap water. Bottled water or other water low in nitrates should be used for infants until further notice.
- DO NOT BOIL THE WATER. Boiling, freezing, filtering, or letting water stand does not reduce the nitrate level. Excessive boiling can make the nitrates more concentrated, because nitrates remain behind when the water evaporates.
Adults and children older than six months can drink the tap water (nitrate is a concern for infants because they can’t process nitrates in the same way adults can). However, if you are pregnant or have specific health concerns, you may wish to consult your doctor.
What is being done?
The City of Eloy has identified the groundwater well with elevated nitrate levels and has reduced its operation. Water production has been increased from other wells with lower nitrate concentrations, and the City has increased monitoring throughout the drinking water system to ensure compliance.
In addition, the City is in the process of installing a nitrate treatment system at Pump Station 1. This system will remove nitrates from the water before it is delivered to customers and will provide a long-term solution to address elevated nitrate levels and maintain compliance with drinking water standards.
For more information, please contact Eloy Public Works office 520-466-3082 or email City of Eloy Public Works at [email protected].
Please share this information with all the other people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.
This notice is being sent to you by City of Eloy. State Water System ID#: AZ0411030
Date distributed: 2-6-2026
