Best Well Water Testing in Tucson, AZ

What should I test my well water for in Arizona?

ADEQ recommends testing at least annually for total coliform and E. coli indicators and for nitrate. In Arizona, also consider PFAS (especially near former military or industrial areas), arsenic, lead, gross alpha, uranium, VOCs, iron, manganese, and pH based on your basin and nearby land uses. ADEQ's drinking-water guidance and regional fact sheets list contaminants that show up frequently in Arizona groundwater.

How often should well water be tested in Arizona?

Test annually for bacteria and nitrates. Comprehensive testing every 2-3 years is recommended. Test immediately after any flooding event, if you notice changes in taste, odor, or color, or if you receive a DEP notice about contamination in your area. Arizona has extensive monitoring programs that may alert you to local issues.

Where can I get my well water tested in Arizona?

Use a laboratory accredited for environmental drinking-water methods (ADEQ publishes accredited laboratory information for environmental compliance sampling). Your county health department, University of Arizona Cooperative Extension, or well professional can help with sampling technique and chain-of-custody. Many well service companies coordinate with accredited labs.

How much does well water testing cost in Arizona?

Basic bacterial and nitrate testing costs $75-$150. A standard AZ potable water panel (bacteria, nitrates, pH, iron, manganese, hardness) costs $150-$300. PFAS testing adds $150-$300 per sample. A comprehensive panel including VOCs, metals, and PFAS costs $400-$700.