Water Quality

The District regularly checks its water for contaminants and is required by federal and state regulations to test for 166 constituents. Trained staff collects samples from wells, storage facilities, points in the distribution system, and residents’ homes. The samples are analyzed by State licensed laboratories. The test results are reported to the District and the State of Arizona. The District works closely with the Arizona Department of Environmental Quality (ADEQ) to ensure all water quality standards are met.

Click the links below for more information on water quality:

Consumer Confidence Reports (Water Quality Reports) for 2022

Hardness / Total Dissolved Solids / Fluoride

Letter to Metro Southwest – Diablo Village Customers

Metro Main South Shannon Treatment System – The Arizona Department of Environmental Quality (ADEQ) paid for the construction of a treatment system at the District’s South Shannon well in 2006. The treatment system pumps water through two vessels filled with 20,000 pounds each of granular activated carbon (seen above) to safely remove volatile organic compounds (VOC) in the groundwater. VOCs are the result of a contaminant plume currently in remediation by ADEQ. The District’s costs to operate the treatment system are reimbursed by ADEQ and regular water quality sampling is performed to ensure safe, reliable water.