882 water systems in Connecticut have at least one health-based violation on record. The system with the most health-based violations is Meadows at Cross River in Bethel with 90 health-based violations. Health-based violations mean a system exceeded an EPA maximum contaminant level or failed required treatment standards.
| Water System | City | Population | Health Violations | Total Violations |
|---|
| Meadows at Cross River |
Bethel | 630 |
90 | 100 |
| Stanwich Club |
Greenwich | 130 |
53 | 265 |
| Temple B'nai Chaim - Classroom Bldg Old |
Georgetown | 31 |
30 | 72 |
| Prides Corner Farmhouse, Inc. |
Lebanon | 50 |
29 | 45 |
| Harrybrooke Park |
New Milford | 25 |
27 | 57 |
| Laurel Hill Complex |
New Milford | 25 |
25 | 88 |
| Twelve Inspiration Lane, LLC |
Chester | 68 |
20 | 81 |
| 7-Eleven Store |
South Windsor | 25 |
20 | 58 |
| 31 Grist Mill Rd |
Old Lyme | 30 |
18 | 484 |
| Brialee RV & Tent Park |
Ashford | 100 |
18 | 48 |
| Norwich Public Utilities |
Norwich | 36,163 |
18 | 29 |
| Cedar Park Inn |
North Stonington | 25 |
17 | 40 |
| Temple Shalom |
Norwalk | 100 |
16 | 84 |
| Pinecrest Condominiums |
East Hartford | 110 |
16 | 22 |
| Rock Terrace Trailer Park |
Stamford | 130 |
15 | 58 |
| Bridgewater Fire Department |
Bridgewater | 25 |
15 | 30 |
| Ellington Ridge Country Club |
Ellington | 25 |
15 | 21 |
| Juniper Club Inc. |
Bloomfield | 104 |
13 | 47 |
| 644 Danbury Road |
Westport | 33 |
12 | 82 |
| Roxbury Market Properties, LLC |
Roxbury | 49 |
12 | 38 |
| Camp Mohawk (Main System) |
Litchfield | 25 |
12 | 31 |
| The Weston Field Club - Well #1 |
Weston | 291 |
11 | 206 |
| Dollar General Willington |
Willington | 25 |
11 | 77 |
| Hubbard Hill Apartments |
Canterbury | 36 |
11 | 51 |
| Aldridge Park |
Ridgefield | 25 |
11 | 41 |
| Round Hill Community Church |
Greenwich | 25 |
11 | 32 |
| Ullman Devices (Main Building) |
Ridgefield | 30 |
11 | 30 |
| Congregational Church of Easton |
Easton | 55 |
10 | 196 |
| Marianapolis Prep School - St Alberts |
Thompson | 51 |
10 | 68 |
| Acls Properties Inc. |
Danbury | 40 |
10 | 36 |
| Girl Scouts of Ct, Inc. (Camp Well) |
North Haven | 25 |
10 | 28 |
| 47 Stony Hill Road |
Bethel | 45 |
10 | 27 |
| Orchard Acres Association |
East Hartford | 176 |
10 | 24 |
| Easton Racquet Club |
Fairfield | 25 |
10 | 18 |
| Tolland Water Dept - Torry Road |
Tolland | 204 |
10 | 15 |
| Abenaki Water/White Rock Water |
Monroe | 238 |
10 | 14 |
| Elmwood Court, LLC |
Danbury | 54 |
9 | 120 |
| Solair Recreational League - Lower Ridge |
Woodstock | 150 |
9 | 89 |
| Middlefield Federated Church |
Middlefield | 53 |
9 | 49 |
| Riverfront Miniature Golf, Inc. |
Unionville | 25 |
9 | 49 |
| Parkway School |
Greenwich | 275 |
9 | 42 |
| Hide Away Cove Campground |
East Killingly | 100 |
9 | 37 |
| Putnam Chrysler Dodge Jeep |
Putnam | 30 |
9 | 35 |
| Camp Mattatuck - Well #2 System |
Hartford | 350 |
9 | 28 |
| Silverman's Farm - Animal Farm Well |
Easton | 25 |
9 | 28 |
| Sherman Park & Beach Pavilion |
Sherman | 25 |
9 | 27 |
| The Wilton Riding Club, Inc |
Wilton | 125 |
9 | 22 |
| Global Self Storage |
East Hampton | 25 |
9 | 16 |
| Nod Hill Brewery |
Ridgefield | 60 |
8 | 172 |
| Whitcraft LLC |
Eastford | 272 |
8 | 131 |
| Mashantucket Pequot Water System |
Mashantucket | 26,445 |
8 | 107 |
| Knollcrest Tax District |
New Fairfield | 356 |
8 | 83 |
| Consolidated & Meeting House Hill School |
New Fairfield | 1,425 |
8 | 73 |
| Lake Lillinonah Shores Condos |
Brookfield | 130 |
8 | 57 |
| Dr. Helen Baldwin School |
Canterbury | 310 |
8 | 44 |
| Rockrimmon Country Club |
Stamford | 60 |
8 | 40 |
| Twin Hills Water District |
Bolton | 156 |
8 | 25 |
| Mulnite Farms |
Broad Brook | 25 |
8 | 19 |
| Woodland Summit Community Water Assn |
Tolland | 216 |
8 | 17 |
| Ridgefield Golf Course(Public Fountain) |
Ridgefield | 25 |
8 | 17 |
| The Vineyard at Hillyland |
Windham | 28 |
8 | 16 |
| Columbia Manufacturing - Well #1 |
Columbia | 150 |
7 | 403 |
| Golf Performance Center |
Ridgefield | 25 |
7 | 240 |
| Ttm Printed Circuit - Building 5 |
Stafford | 51 |
7 | 104 |
| Conrads Park |
Brooklyn | 60 |
7 | 85 |
| Willington Mobil |
Glastonbury | 25 |
7 | 68 |
| East Morris Xtra Mart-Citgo Gas Station |
Morris | 25 |
7 | 67 |
| Marbledale 151 Corp |
New Preston | 25 |
7 | 63 |
| Sunny Valley Tax District |
New Milford | 500 |
7 | 60 |
| 39 Hop Brook Rd - Apt Complex |
Danbury | 36 |
7 | 57 |
| Monroe Little League Beardsley Fields |
Monroe | 25 |
7 | 37 |
| Peckham Park |
Middlefield | 25 |
7 | 31 |
| Prospect Little League Stand |
Prospect | 25 |
7 | 28 |
| Evan's Deli |
Bethany | 102 |
7 | 27 |
| Fairview Country Club |
Greenwich | 435 |
7 | 25 |
| D. B. Mart #9 Gulf Gas Station |
Rocky Hill | 25 |
7 | 17 |
| Girl Scouts of Ct - Camp Merrie-Wood |
North Haven | 25 |
7 | 16 |
| Chelsea Family Housing |
West Hartford | 44 |
7 | 14 |
| 31 Old Route Seven |
Bethel | 50 |
6 | 356 |
| Pine Point School-Campbell |
Stonington | 267 |
6 | 329 |
| Hero Holdings LLC |
Stonington | 25 |
6 | 275 |
| Lindhbrook Water Company |
Harwinton | 200 |
6 | 241 |
| Devereux Glenholme School - Main Campus |
Washington | 245 |
6 | 153 |
| The Carlyle Johnson Machine Company |
Bolton | 42 |
6 | 118 |
| Aquarion-Falls Village |
Shelton | 488 |
6 | 116 |
| Yeshiva of Waterbury-Durham Campus |
Waterbury | 490 |
6 | 81 |
| The Scotts-Hyponex Company-Main Plant |
Lebanon | 45 |
6 | 80 |
| Amc Theatres of Bloomsburg |
East Berlin | 25 |
6 | 62 |
| Munson's Candy Kitchen |
Bolton | 30 |
6 | 61 |
| Red Carpet Motel |
Ridgefield | 25 |
6 | 56 |
| 1 Dodgingtown Road |
Newtown | 38 |
6 | 55 |
| Brookfield Hills Condominium Unit Owners |
Danbury | 144 |
6 | 51 |
| Talcott Mountain Science Center #2 |
Avon | 59 |
6 | 50 |
| First Church of Christ, Congregational |
Redding | 50 |
6 | 46 |
| Silver Lake - Main System |
Sharon | 30 |
6 | 39 |
| Walgreen's Pharmacy-Coventry |
Coventry | 25 |
6 | 36 |
| St. Francis of Assisi R.C. Church |
Weston | 80 |
6 | 35 |
| First Church of Round Hill |
Greenwich | 60 |
6 | 35 |
| Southford Center |
Cheshire | 27 |
6 | 35 |
| Quinebaug Mobile Home Park |
Quinebaug | 205 |
6 | 34 |