Lead and Copper Rule Revisions (LCRR) violations in Connecticut
319 active public water systems in Connecticut had a Lead and Copper Rule Revisions (LCRR) violation in the past three years, 319 of them in the latest quarter of EPA's data. What Lead and Copper Rule Revisions (LCRR) is and why it matters.
Systems with a Lead and Copper Rule Revisions (LCRR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Nod Hill Brewery Ridgefield · Fairfield County |
60 | 7 | 2 | |
|
North Madison Shopping Center Madison · New Haven County |
60 | 1 | 1 | |
|
Quality Daycare & Co-Op Nursery Salem · New London County |
60 | 2 | 1 | |
|
Rockrimmon Country Club Stamford · Fairfield County |
60 | 4 | 2 | |
|
Young Horizons Daycare Haddam · Middlesex County |
60 | 1 | 1 | |
|
Canterbury Childrens Academy Canterbury · Windham County |
59 | 1 | 1 | |
|
Talcott Mountain Science Center #1 Avon · Hartford County |
59 | 3 | 3 | |
|
Talcott Mountain Science Center #2 Avon · Hartford County |
59 | 6 | 2 | |
|
Neighbors of Rogers, LLC Groton · New London County |
57 | 4 | 2 | |
|
Independence Village Elderly Housing Montville · New London County |
55 | 1 | 1 | |
|
Red Balloon Daycare Stafford · Tolland County |
55 | 1 | 1 | |
|
Tamarack Lodge & Glamping Resort CT Voluntown · New London County |
55 | 1 | 1 | |
|
The Learning Den Chaplin · Windham County |
55 | 1 | 1 | |
|
Little Rascals Nursery School Danbury · Fairfield County |
54 | 1 | 1 | |
|
Learn Old Lyme · New London County |
53 | 2 | 2 | |
|
Sts Cyril&methodius Serbian Orth. Church Middlefield · Middlesex County |
53 | 5 | 1 | |
|
Community Childrens Center Inc. Mansfield · Tolland County |
52 | 1 | 1 | |
|
The Carrot Patch Hamden · New Haven County |
52 | 2 | 1 | |
|
Birge Park Commons Harwinton · Litchfield County |
51 | 3 | 2 | |
|
Marianapolis Prep School ST Alberts Thompson · Windham County |
51 | 4 | 1 | |
|
31 Old Route Seven Brookfield · Fairfield County |
50 | 4 | 1 | |
|
Better Val-U Supermarkets, Inc. Canterbury · Windham County |
50 | 2 | 1 | |
|
Cedar Gables Preschool LLC Danbury · Fairfield County |
50 | 1 | 1 | |
|
Chatham Acres Elderly Housing East Hampton · Middlesex County |
50 | 1 | 1 | |
|
Durham Elderly Housing Division Durham · Middlesex County |
50 | 2 | 1 | |
|
Eastport West Old Lyme · New London County |
50 | 2 | 1 | |
|
Elliot Pratt Education Center New Milford · Litchfield County |
50 | 4 | 1 | |
|
Fiberoptics Technology (old) Pomfret · Windham County |
50 | 2 | 1 | |
|
First Church of Christ, Congregational Redding · Fairfield County |
50 | 4 | 1 | |
|
Groton Board of Education Groton · New London County |
50 | 1 | 1 | |
|
Hillandale Farms Conn, LLC Lebanon · New London County |
50 | 1 | 1 | |
|
Lymewood Elderly Housing Old Lyme · New London County |
50 | 2 | 1 | |
|
Mar-Lea Park Apartments Ashford · Windham County |
50 | 1 | 1 | |
|
Medtronic Xomed (merocel Facility) Groton · New London County |
50 | 3 | 2 | |
|
Nutmeg Container Corporation Thompson · Windham County |
50 | 1 | 1 | |
|
Riverview Farm Seabird Enterprises Montville · New London County |
50 | 1 | 1 | |
|
Southridge Park Apartments Bolton · Tolland County |
50 | 1 | 1 | |
|
Cook Drive Association Bolton · Tolland County |
49 | 1 | 1 | |
|
Cornwall Water Company Cornwall · Litchfield County |
48 | 8 | 3 | |
|
Gorman Road Apartments Brooklyn · Windham County |
48 | 2 | 1 | |
|
Knollbrook Village Elderly Housing Canterbury · Windham County |
48 | 1 | 1 | |
|
Lyme Academy Apartments,llc Old Lyme · New London County |
48 | 4 | 3 | |
|
Seely Brown Village Pomfret · Windham County |
48 | 3 | 1 | |
|
Whispering Hills, LLC Well D System Andover · Tolland County |
48 | 1 | 1 | |
|
Groszyk Farm Worker Housing East Windsor · Hartford County |
46 | 1 | 1 | |
|
Moosup Pond Terrace, LLC Plainfield · Windham County |
46 | 1 | 1 | |
|
Quinlan Enterprise Building North Stonington · New London County |
46 | 3 | 1 | |
|
Sunset Apartments LLC Bolton · Tolland County |
46 | 6 | 2 | |
|
Laurel Heights Association, Inc. Old Lyme · New London County |
45 | 2 | 1 | |
|
Perkins Corner Mansfield · Tolland County |
45 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Lead and Copper Rule Revisions (LCRR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule Revisions (LCRR) 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.