341 active public water systems serve 90,423 people in Matanuska-Susitna Borough. 177 are compliant, 164 had at least one EPA violation in the past three years, 11 are designated serious violators, and 21 carry a health flag.
Active systems34180 community systems
People served90Kby public water systems
Systems with violations16448% of active systems, past 3 years
Serious violators1121 systems carry a health flag
Needs attention
Slavic Evangelical ChurchAK2225753 · Wasilla · Transient non-community system · Serves 2983 rules violated in the past three years. Unresolved: Ground Water Rule.
Mom & Pops 4 Corners PlazaAK2227262 · Palmer · Transient non-community system · Serves 2703 rules violated in the past three years
Knik Tribal Council Senior Housing DevAK2220501 · Wasilla · Community water system · Serves 1285 rules violated in the past three years. Unresolved: Lead and Copper Rule and Public Notice Rule and Revised PN Rule.
Marys McKinley ViewAK2222929 · Trapper Creek · Transient non-community system · Serves 1071 rule violated in the past three years. Unresolved: Revised Total Coliform Rule.
Alaska H2o INCAK2222848 · Wasilla · Community water system · Serves 754 rules violated in the past three years. Unresolved: Lead and Copper Rule, Lead and Copper Rule Revisions, and Consumer Confidence Rule.
Sheena May EstatesAK2224337 · Palmer · Community water system · Serves 744 rules violated in the past three years
Church of Christ at WasillaAK2220409 · Wasilla · Transient non-community system · Serves 703 rules violated in the past three years. Unresolved: Ground Water Rule.
Aleutian Estates #1AK2224159 · Wasilla · Community water system · Serves 634 rules violated in the past three years. Unresolved: Revised Total Coliform Rule, Lead and Copper Rule, and Public Notice Rule and Revised PN Rule.
Palmer Lifeways DaycareAK2226055 · Palmer · Non-Transient non-community system · Serves 561 rule violated in the past three years
King for a DayAK2299036 · Copper Center · Transient non-community system · Serves 532 rules violated in the past three years. Unresolved: Revised Total Coliform Rule.
17 more systems with a serious violator or health flag designation are in the lists below.
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 Alaska 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.
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.