City of Mesa water customers who reside in the area east of Loop 101 to Val Vista Drive and north of Baseline Road may experience subtle cloudiness in their water from the end of September through January.

Residents can rest assured that their water is safe and continues to meet all state and federal water quality standards, according to a release.

Cloudy water can result when the Water Resources Department temporarily switches from surface water to well water to perform routine treatment plant maintenance. In this case, the Val Vista Water Treatment Plant is having maintenance performed beginning in September and will return to regular service February 2022.

“Dissolved air is often found trapped in groundwater,” Water Resources Director Jake West said in the release. “Our water distribution system is pressurized, causing any air that is present in groundwater to remain dissolved in the water until the pressure is released at the customer’s tap. Dissolved air can cause water to have a cloudy or milky appearance, but it is safe to drink and will not damage plumbing or appliances.”

For more information, go to mesaaz.gov/water or call the water quality division at 480-644-6461.