EPA SDWIS Compliance Records
Drinking Water Compliance Report for Phoenix, AZ
5 public water systems serve Phoenix — real federal compliance history, not a marketing claim.
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Water systems serving this city
90
Total compliance records on file
1
Health-based violations
What this means for your tap water: a "health-based" violation means a system exceeded an actual contaminant safety threshold at some point — different from a paperwork or reporting violation, which is far more common and far less concerning. Phoenix's systems average 0.6 health-based violations each, ranking about middle-of-the-pack (#13 of 20 we track). Which specific system serves your address determines whether that history applies to you — check the list below rather than assuming.
Systems Serving Phoenix
PHOENIX CITY OF
1,695,000 people served6 violations on record, including health-based violations.
- January 2014 — MR— resolved
- May 2025 — MON— resolved
- January 2021 — TT(health-based)— resolved
- October 2018 — MR— resolved
- January 2023 — MR
GLENDALE CITY OF
234,766 people served47 violations on record, none health-based.
- July 2004 — MR— resolved
- July 2004 — Other— resolved
- July 2005 — Other— resolved
- July 2002 — Other— resolved
- July 2006 — Other— resolved
ARIZONA WATER CO - PINAL VALLEY
134,432 people served35 violations on record, none health-based.
- April 2025 — MR
- April 2025 — MR
- January 2008 — MR— resolved
- October 2020 — RPT— resolved
- January 2022 — MR— resolved
ARIZONA WATER CO - APACHE JUNCTION
62,055 people served2 violations on record, none health-based.
- July 2002 — Other— resolved
- October 2015 — MR— resolved
CONSOLIDATED-DEER VALLEY
20,100 people servedNo violations on record.
Source: EPA Safe Drinking Water Information System (SDWIS), via Envirofacts. Water-system-level records, not address-specific — homes on private wells or served by a different system than listed here aren't reflected. A resolved violation means the system returned to compliance; it doesn't mean water quality is currently at risk.
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