348 active public water systems serve 130,993 people in Litchfield County. 143 are compliant, 205 had at least one EPA violation in the past three years, 4 are designated serious violators, and 25 carry a health flag.
Active systems34876 community systems
People served131Kby public water systems
Systems with violations20559% of active systems, past 3 years
Serious violators425 systems carry a health flag
Needs attention
Birge Park CommonsCT0660034 · Harwinton · Non-Transient non-community system · Serves 513 rules violated in the past three years. Unresolved: Lead and Copper Rule and Lead and Copper Rule Revisions.
Cornwall Water CompanyCT0311011 · Cornwall · Community water system · Serves 488 rules violated in the past three years. Unresolved: Ground Water Rule, Lead and Copper Rule Revisions, and Public Notice Rule and Revised PN Rule.
Eldridge Elderly HousingCT0878021 · Morris · Community water system · Serves 404 rules violated in the past three years. Unresolved: Lead and Copper Rule, Lead and Copper Rule Revisions, Public Notice Rule and Revised PN Rule, and Consumer Confidence Rule.
Buddha Ariyamett Aram TempleCT0870244 · Morris · Transient non-community system · Serves 253 rules violated in the past three years
Sharon Water & Sewer CommissionCT1250011 · Sharon · Community water system · Serves 8034 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Shepaug Middle/high SchoolCT1500102 · Washington · Non-Transient non-community system · Serves 7702 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Sunny Valley Tax DistrictCT0960031 · New Milford · Community water system · Serves 5005 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Camp Mattatuck Well #2 SystemCT1110034 · Plymouth · Transient non-community system · Serves 3501 rule violated in the past three years. Unresolved: Revised Total Coliform Rule.
Washington Montessori SchoolCT1500343 · Washington · Non-Transient non-community system · Serves 3501 rule violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Woodbury Knoll, Llc.CT1680051 · Woodbury · Community water system · Serves 2583 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
16 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 Connecticut 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.