Arizona Tap Water Quality: Is It Safe to Drink?
2026 EPA water quality data for 0 community water systems serving residents in Arizona. Find your water system to see violations, PFAS results, lead testing, and a safety grade — free.
Arizona depends on a mix of Colorado River water, Salt River Project reservoirs, and deep groundwater wells to supply its desert communities. Naturally occurring arsenic, fluoride, and uranium are recurring concerns in groundwater, particularly in rural areas. Water hardness is generally high, often exceeding 200 mg/L in the Phoenix and Tucson metro areas.
Find Your Water System in Arizona
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📊 Data from EPA’s SDWIS
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🔄 Updated quarterly
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🏛️ 0+ water systems in Arizona