115 active public water systems serve 179,881 people in Coconino County. 19 are compliant, 96 had at least one EPA violation in the past three years, 5 are designated serious violators, and 5 carry a health flag.
Active systems11538 community systems
People served180Kby public water systems
Systems with violations9683% of active systems, past 3 years
Serious violators55 systems carry a health flag
Needs attention
Williams City ofAZ0403026 · Williams · Community water system · Serves 3,1457 rules violated in the past three years. Unresolved: Lead and Copper Rule.
Bellemont Water CompanyAZ0403394 · Bellemont · Non-Transient non-community system · Serves 1007 rules violated in the past three years. Unresolved: Lead and Copper Rule and Public Notice Rule and Revised PN Rule.
Majestic View Water Improvement DistrictAZ0403044 · Fort Valley · Community water system · Serves 708 rules violated in the past three years. Unresolved: Lead and Copper Rule and Public Notice Rule and Revised PN Rule.
Usfs Conf Double SpringsAZ0403569 · Mormon Lake · Transient non-community system · Serves 324 rules violated in the past three years. Unresolved: Ground Water Rule.
Oak Creek Terrace MotelAZ0403328 · Oak Creek Canyon · Transient non-community system · Serves 303 rules violated in the past three years. Unresolved: Public Notice Rule and Revised PN Rule.
Camp NavajoAZ0403344 · Bellemont · Non-Transient non-community system · Serves 3504 rules violated in the past three years. Unresolved: Ground Water Rule.
CS Flagstaff Ranch Water CompanyAZ0403088 · Flagstaff · Community water system · Serves 3507 rules violated in the past three years. Unresolved: Revised Total Coliform Rule and Lead and Copper Rule.
Destination at Oak CreekAZ0403022 · Oak Creek Canyon · Transient non-community system · Serves 504 rules violated in the past three years. Unresolved: Ground Water Rule and Public Notice Rule and Revised PN Rule.
Cliff Dwellers LodgeAZ0403364 · Lees Ferry · Transient non-community system · Serves 343 rules violated in the past three years. Unresolved: Revised Total Coliform Rule.
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Arizona records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.
Compliant
Compliant
No violations reported to EPA in the past three years.
At least one violation on record with EPA in the past three years. Many are monitoring or reporting lapses rather than contamination; the system page lists which rules were involved and whether each is still open.
EPA's designation, also called an enforcement priority, for a system with unresolved serious, multiple, or continuing violations. EPA expects the system and its state to act quickly to resolve them.
At least one open health-based violation: an exceedance of a maximum contaminant level or residual disinfectant level, or a treatment technique violation. Monitoring and reporting lapses do not raise this flag.