Chlorine (MRDL) violations in Connecticut
22 active public water systems in Connecticut had a Chlorine (MRDL) violation in the past three years, 6 of them in the latest quarter of EPA's data. What Chlorine (MRDL) is and why it matters.
Systems with a Chlorine (MRDL) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Meriden Water Division Berlin, Cheshire, Meriden and 2 more · New Haven County |
58,441 | 4 | 0 | |
|
Sterling Water System Sterling · Windham County |
308 | 2 | 1 | |
|
Ashford Hills Apartments Ashford · Windham County |
136 | 8 | 2 | |
|
Talcott Mountain Science Center #2 Avon · Hartford County |
59 | 6 | 2 | |
|
Westside Manor East Hampton · Middlesex County |
30 | 5 | 0 | |
|
Amg513 East Hampton · Middlesex County |
25 | 2 | 1 | |
|
Jewett City Water Company Griswold, Lisbon · New London County |
6,840 | 3 | 0 | |
|
Weston Schools and Municipal Buildings Weston · Fairfield County |
2,600 | 2 | 0 | |
|
Killingly High School & Agricultural Ctr Killingly · Windham County |
1,400 | 2 | 1 | |
|
New Fairfield High/middle School New Fairfield · Fairfield County |
1,400 | 5 | 0 | |
|
Lone Oak Campground North Canaan · Litchfield County |
1,250 | 3 | 0 | |
|
Fairview Country Club Greenwich · Fairfield County |
435 | 5 | 1 | |
|
East Hampton Wpca Village Center East Hampton · Middlesex County |
366 | 5 | 0 | |
|
East Hampton Wpca Royal Oaks System East Hampton · Middlesex County |
328 | 4 | 0 | |
|
The Frederick Gunn School, Inc. Washington · Litchfield County |
300 | 3 | 0 | |
|
Pine Grove Association, Inc. Canaan · Litchfield County |
248 | 1 | 0 | |
|
Apple Rehab Rocky Hill · Hartford County |
238 | 6 | 2 | |
|
Northford Glen Condominium Association North Branford · New Haven County |
84 | 5 | 2 | |
|
The Weston Field Club Well #2 Weston · Fairfield County |
75 | 8 | 2 | |
|
Rocky Glen Mill Newtown · Fairfield County |
70 | 6 | 1 | |
|
Keeler Ridgefield B Ridgefield · Fairfield County |
30 | 8 | 3 | |
|
563 Providence-New London Tnpk North Stonington · New London County |
25 | 5 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Chlorine (MRDL), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Chlorine (MRDL) alone.
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.