EPA often omits served ZIP codes for large utilities. These systems are tied to North Grosvenordale, Connecticut based on this ZIP code's city or county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|
| Windham Water Works |
21,214 |
Surface Water |
5 |
0 |
| Putnam Water Pollution Control Authority |
7,300 |
Surface Water |
91 |
0 |
| Ctwc - Crystal System |
6,378 |
Groundwater |
48 |
0 |
| Ctwc - Gallup System |
2,538 |
Groundwater |
0 |
0 |
| Ctwc - Plainfield System |
1,713 |
Groundwater |
1 |
0 |
| Ctwc - Thompson System |
1,070 |
Groundwater |
0 |
0 |
| Woodstock Academy South Campus |
620 |
Groundwater |
67 |
1 |
| Pomfret School |
400 |
Groundwater |
12 |
1 |
| Ctwc - Ashford Park Division |
334 |
Groundwater |
2 |
0 |
| Wyndham Park Apartments |
312 |
Groundwater |
2 |
0 |
| Sterling Water System |
308 |
Groundwater |
4 |
0 |
| The Rectory School |
300 |
Groundwater |
22 |
1 |
| Moosup Garden Apartments |
270 |
Groundwater |
4 |
0 |
| Matulaitis Nursing Home |
254 |
Groundwater |
13 |
1 |
| Quinebaug Mobile Home Park |
205 |
Groundwater |
34 |
6 |
| Woodstock Meadows Condominium Assn. |
180 |
Groundwater |
16 |
3 |
| Campbell Heights Apartments |
152 |
Groundwater |
32 |
6 |
| Perry Hill Estates Apartments Inc. |
144 |
Groundwater |
70 |
3 |
| Ashford Hills Apartments |
136 |
Groundwater |
86 |
3 |
| Douglas Manor |
135 |
Groundwater |
11 |
1 |
| Birch Hills Condominiums |
132 |
Groundwater |
43 |
1 |
| Marianapolis Prep School - St Johns |
128 |
Groundwater |
19 |
1 |
| Pinecrest Condominiums |
110 |
Groundwater |
22 |
16 |
| Roseland Terrace Association, Inc. |
100 |
Groundwater |
14 |
3 |
| Fall Brook Mobile Home Park |
98 |
Groundwater |
617 |
1 |
| Woodlawn Apartments |
96 |
Groundwater |
57 |
5 |
| Thompson Hill Water Co - Paula Lane Div |
85 |
Groundwater |
212 |
5 |
| Evangelical Christian Center - Main |
84 |
Groundwater |
61 |
3 |
| Cranberry Bog Apartments |
72 |
Groundwater |
149 |
2 |
| Chaplin Woods Condominiums |
69 |
Groundwater |
8 |
2 |
| Longview Estates, LLC |
69 |
Groundwater |
8 |
1 |
| Country Manor |
66 |
Groundwater |
89 |
21 |
| Conrads Park |
60 |
Groundwater |
85 |
7 |
| Westview Terrace Mobile Home Park |
60 |
Groundwater |
13 |
1 |
| Ctwc - Cornfield Point Div. |
57 |
Groundwater |
1 |
0 |
| Justice Resource Institute, Inc. |
56 |
Groundwater |
4 |
0 |
| Marianapolis Prep School - St Alberts |
51 |
Groundwater |
68 |
10 |
| Mar-Lea Park Apartments |
50 |
Groundwater |
344 |
4 |
| Country Acres Park |
48 |
Groundwater |
32 |
1 |
| Seely - Brown Village |
48 |
Groundwater |
21 |
1 |
| Knollbrook Village Elderly Housing |
48 |
Groundwater |
11 |
1 |
| Moosup Pond Terrace, LLC |
46 |
Groundwater |
31 |
1 |
| Brookwood Apartments |
44 |
Groundwater |
55 |
7 |
| Hubbard Hill Apartments |
36 |
Groundwater |
51 |
11 |
| Fawn Ridge Association Inc. |
36 |
Groundwater |
31 |
11 |
| Brookscrossing Apartments |
36 |
Groundwater |
76 |
1 |
| Jumbo Apartments |
35 |
Groundwater |
13 |
4 |
| Arnio Drive LLC |
33 |
Groundwater |
3 |
0 |
| Ctwc - Pompey Hollow Division |
32 |
Groundwater |
2 |
0 |
| Brooklyn Manor |
30 |
Groundwater |
11 |
1 |
| Moosup Manor |
27 |
Groundwater |
29 |
6 |
| Woodstock Housing Authority |
26 |
Groundwater |
41 |
1 |
| Gorman Road Apartments |
25 |
Groundwater |
8 |
1 |
| Killingly High School & Agricultural Ctr |
1,400 |
Groundwater |
104 |
3 |
| Woodstock Academy |
1,125 |
Groundwater |
74 |
4 |
| Frito-Lay |
903 |
Groundwater |
14 |
5 |
| Woodstock Elementary School |
636 |
Groundwater |
4 |
1 |
| Woodstock Middle School |
511 |
Groundwater |
8 |
4 |
| Pomfret Community School |
500 |
Groundwater |
50 |
0 |
| Parish Hill High School |
487 |
Groundwater |
4 |
1 |
| North Windham Elementary School |
485 |
Groundwater |
20 |
0 |
| Ashford School |
475 |
Groundwater |
3 |
0 |
| Canterbury Elementary School |
350 |
Groundwater |
17 |
1 |
| Camp Woodstock - Upper Main Camp |
346 |
Groundwater |
1 |
0 |
| Hole in the Wall Gang Camp-Main System#1 |
335 |
Groundwater |
3 |
3 |
| Camp Woodstock - New Dining Well |
322 |
Groundwater |
0 |
0 |
| Camp Connri |
319 |
Groundwater |
6 |
2 |
| Dr. Helen Baldwin School |
310 |
Groundwater |
44 |
8 |
| Chaplin Elementary School |
280 |
Groundwater |
38 |
2 |
| Whitcraft LLC |
272 |
Groundwater |
131 |
8 |
| Marianapolis Prep School - Admin/School |
266 |
Groundwater |
7 |
1 |
| Rogers Corp - Rogers Well |
250 |
Groundwater |
5 |
4 |
| Eastford Elementary School |
225 |
Groundwater |
4 |
0 |
| Hampton Elementary School |
220 |
Groundwater |
6 |
1 |
| Peake Brook LLC |
208 |
Groundwater |
38 |
3 |
| Scotland Elementary School |
200 |
Groundwater |
4 |
1 |
| Linemaster Switch Corp |
178 |
Groundwater |
68 |
0 |
| Tri-State Baptist Church |
157 |
Groundwater |
10 |
0 |
| New England Laborers Academy - Main Sys |
151 |
Groundwater |
45 |
3 |
| Solair Recreational League - Lower Ridge |
150 |
Groundwater |
89 |
9 |
| Evangelical Christian Center - Rec Center |
150 |
Groundwater |
2 |
0 |
| Inn at Woodstock Hill |
145 |
Groundwater |
9 |
2 |
| Loos & Co - Well #1 |
130 |
Groundwater |
3 |
0 |
| Brialee RV & Tent Park |
100 |
Groundwater |
48 |
18 |
| Gibson Hill Park |
100 |
Groundwater |
244 |
11 |
| Hide Away Cove Campground |
100 |
Groundwater |
37 |
9 |
| Christian Fellowship Church of Scotland |
100 |
Groundwater |
13 |
0 |
| Church of the Nazarine |
100 |
Groundwater |
7 |
0 |
| Meadowside of Woodstock Inc. |
100 |
Groundwater |
3 |
0 |
| Cubic Scoops |
100 |
Groundwater |
0 |
0 |
| River Bend Campground |
100 |
Groundwater |
0 |
0 |
| Solair Recreational League - Pavilion |
93 |
Groundwater |
53 |
1 |
| Rogers Corp - Poron Well |
90 |
Groundwater |
1 |
0 |
| Darigan-Barr, Inc. |
89 |
Groundwater |
54 |
2 |
| Eastconn - Danielson |
87 |
Groundwater |
141 |
0 |
| Wolf Den State Park/Campground Well |
83 |
Groundwater |
10 |
2 |
| Numa Tool Co Inc |
80 |
Groundwater |
6 |
1 |
| Charlie Brown Campground-Rec Hall |
75 |
Groundwater |
16 |
1 |
| Charlie Brown Campground |
75 |
Groundwater |
1 |
0 |
| Bst Systems, Inc. |
75 |
Groundwater |
0 |
0 |
| Blondie's Country Diner |
70 |
Groundwater |
2 |
0 |
| Killingly Hwy Dept Garage |
68 |
Groundwater |
7 |
1 |
| White Barn Children's Center |
65 |
Groundwater |
10 |
1 |
| Knollwood Plaza |
65 |
Groundwater |
4 |
0 |
| Eastconn Central Administration |
65 |
Groundwater |
1 |
0 |
| Canterbury Childrens Academy |
59 |
Groundwater |
4 |
1 |
| The Learning Den |
55 |
Groundwater |
375 |
1 |
| Windham Phoenix Academy |
55 |
Groundwater |
0 |
0 |
| Fiberoptics Technology (Old) |
50 |
Groundwater |
12 |
2 |
| Highland Campground |
50 |
Groundwater |
3 |
2 |
| Sun Ridge Resort Campground |
50 |
Groundwater |
16 |
1 |
| Better Val-U Supermarkets, Inc. |
50 |
Groundwater |
8 |
1 |
| Nutmeg Container Corporation |
50 |
Groundwater |
4 |
1 |
| Chamberlain Lake Campground |
50 |
Groundwater |
7 |
0 |
| Village Shopping Plaza |
49 |
Groundwater |
3 |
0 |
| The Vanilla Bean Cafe |
47 |
Groundwater |
0 |
0 |
| Canterbury Plains Mall |
46 |
Groundwater |
54 |
10 |
| 474 Putnam Pike |
46 |
Groundwater |
14 |
6 |
| 123, 125, & 127 Norwich Road |
45 |
Groundwater |
11 |
1 |
| 137 Norwich Rd - Village Commons |
45 |
Groundwater |
0 |
0 |
| Riverview Pizza Restaurant |
43 |
Groundwater |
6 |
4 |
| Woodstock Trading Post |
42 |
Groundwater |
9 |
0 |
| Canterbury Municipal Offices |
41 |
Groundwater |
1 |
0 |
| Colonial Plaza Condominium Assn, Inc. |
40 |
Groundwater |
11 |
6 |
| Ivanhoe Tool & Die Co Inc |
40 |
Groundwater |
6 |
1 |
| Wh Automotive, Inc. |
40 |
Groundwater |
2 |
1 |
| Koinonia School of Sports |
40 |
Groundwater |
34 |
0 |
| Camp Woodstock - Roskin Well |
40 |
Groundwater |
1 |
0 |
| Camp Woodstock - Boat House Well |
40 |
Groundwater |
0 |
0 |
| Canterbury Commons |
39 |
Groundwater |
8 |
0 |
| Learning Clinic - Wells B, C, & D |
39 |
Groundwater |
3 |
0 |
| Woodstock Town Hall |
39 |
Groundwater |
0 |
0 |
| First Congregational Church of Woodstock |
38 |
Groundwater |
7 |
2 |
| The Owls Nest Day School |
38 |
Groundwater |
271 |
1 |
| Sharpe Hill Vineyard - Tasting Room |
37 |
Groundwater |
5 |
2 |
| Weideles Pizza & Pub (Oneco Commons) |
37 |
Groundwater |
10 |
1 |
| 773 Quinebaug Road |
37 |
Groundwater |
3 |
0 |
| Brooklyn Pizza Restaurant |
37 |
Groundwater |
3 |
0 |
| 10-16 Putnam Road |
36 |
Groundwater |
11 |
0 |
| 55-69 Nott Highway |
36 |
Groundwater |
10 |
0 |
| Putnam Preschool and Childcare, Llc. |
36 |
Groundwater |
4 |
0 |
| Stonehurst at Hampton Valley Barn |
35 |
Groundwater |
4 |
0 |
| Railside Tavern |
35 |
Groundwater |
0 |
0 |
| Peppertree Camping |
34 |
Groundwater |
0 |
0 |
| Killingly Professional Building |
33 |
Groundwater |
17 |
0 |
| Taylor Brooke Brewery |
33 |
Groundwater |
0 |
0 |
| Cumberland Farms Store #4632 |
32 |
Groundwater |
4 |
2 |
| Northwood Childcare |
32 |
Groundwater |
3 |
1 |
| Bach Dor Cafe |
31 |
Groundwater |
2 |
0 |
| Windham/Tolland 4-H Camp - Well #2 |
31 |
Groundwater |
0 |
0 |
| Putnam Chrysler Dodge Jeep |
30 |
Groundwater |
35 |
9 |
| Little Foot Day Care & Preschool |
30 |
Groundwater |
54 |
1 |
| Country Farms |
30 |
Groundwater |
14 |
1 |
| 20 Norwich Road, LLC |
30 |
Groundwater |
9 |
1 |
| Nickerson Park Campground |
30 |
Groundwater |
6 |
0 |
| 1075 North Main Street - Killingly |
30 |
Groundwater |
2 |
0 |
| Learning Clinic - Overlook Bldg |
30 |
Groundwater |
0 |
0 |
| Taylor Brooke Winery |
30 |
Groundwater |
0 |
0 |
| Harrisville Golf Course |
29 |
Groundwater |
10 |
2 |
| 60 Hartford Pike |
29 |
Groundwater |
7 |
1 |
| Marika's Place |
29 |
Groundwater |
0 |
0 |
| The Vineyard at Hillyland |
28 |
Groundwater |
16 |
8 |
| Charlie's Place |
27 |
Groundwater |
3 |
0 |
| Saint Augustine Church |
26 |
Groundwater |
1 |
0 |
| Saint Philip Church Rectory |
26 |
Groundwater |
1 |
0 |
| Vineyard Valley Golf Club |
25 |
Groundwater |
24 |
6 |
| Ashford Dari Bar |
25 |
Groundwater |
13 |
4 |
| Stonewall Commons of Putnam |
25 |
Groundwater |
8 |
4 |
| June Norcross Webster - Well #2 |
25 |
Groundwater |
37 |
3 |
| Wicked Cow |
25 |
Groundwater |
15 |
3 |
| 610 Wauregan Road |
25 |
Groundwater |
21 |
2 |
| Plainfield Rest Area (I-395 N&S) |
25 |
Groundwater |
18 |
2 |
| South Woodstock Baptist Church |
25 |
Groundwater |
10 |
2 |
| Prudence Crandall Museum |
25 |
Groundwater |
9 |
2 |
| 1019 Norwich Road |
25 |
Groundwater |
5 |
2 |
| Windham/Tolland 4-H Camp - Dining Hall |
25 |
Groundwater |
5 |
2 |
| Stateline Camp Resort-Well #1 |
25 |
Groundwater |
37 |
1 |
| Lord Thompson Manor |
25 |
Groundwater |
7 |
1 |
| Roseland Park Golf Course |
25 |
Groundwater |
7 |
1 |
| Thompson Speedway Restaurant |
25 |
Groundwater |
7 |
1 |
| Fiberoptics Technology (New) |
25 |
Groundwater |
6 |
1 |
| White Horse at Vernon Stiles Inn |
25 |
Groundwater |
6 |
1 |
| 518 Norwich Road - Plainfield |
25 |
Groundwater |
5 |
1 |
| Chaplin Park |
25 |
Groundwater |
3 |
1 |
| Sorels Garage |
25 |
Groundwater |
3 |
1 |
| Cozy Corner Restaurant |
25 |
Groundwater |
2 |
1 |
| 283 Scenic Route 169 |
25 |
Groundwater |
14 |
0 |
| Hank's Dairy Bar |
25 |
Groundwater |
13 |
0 |
| Calvary Chapel |
25 |
Groundwater |
11 |
0 |
| Gauthier Field |
25 |
Groundwater |
9 |
0 |
| Westford Congregational Church |
25 |
Groundwater |
9 |
0 |
| We-Li-Kit Ice Cream |
25 |
Groundwater |
8 |
0 |
| Thompson Speedway-Concession |
25 |
Groundwater |
7 |
0 |
| Our Lady of La Salette Church |
25 |
Groundwater |
6 |
0 |
| Brooklyn Market |
25 |
Groundwater |
5 |
0 |
| Ashford Motel |
25 |
Groundwater |
4 |
0 |
| Church of Latter Day Saints |
25 |
Groundwater |
4 |
0 |
| Crystal Pond Park |
25 |
Groundwater |
4 |
0 |
| Edi's Place |
25 |
Groundwater |
4 |
0 |
| June Norcross Webster (Cafeteria Well) |
25 |
Groundwater |
4 |
0 |
| Our Lady of Lourdes Catholic Church |
25 |
Groundwater |
4 |
0 |
| Quinnatisset Country Club |
25 |
Groundwater |
4 |
0 |
| Rollies Variety |
25 |
Groundwater |
4 |
0 |
| Stonehurst at Hampton Valley Inn |
25 |
Groundwater |
4 |
0 |
| Zips Diner Inc |
25 |
Groundwater |
4 |
0 |
| Eastford Baptist Church - Activity Center |
25 |
Groundwater |
3 |
0 |
| First Congregational Church |
25 |
Groundwater |
3 |
0 |
| First Congregational Church of Windham |
25 |
Groundwater |
3 |
0 |
| Learning Clinic - Brooklyn Bldg |
25 |
Groundwater |
3 |
0 |
| Skate-Inn, Inc. |
25 |
Groundwater |
3 |
0 |
| St Pauls Episcopal Church |
25 |
Groundwater |
3 |
0 |
| Woodstock Valley Marketplace |
25 |
Groundwater |
3 |
0 |
| 37 Putnam Road |
25 |
Groundwater |
2 |
0 |
| Chaplin Town Hall |
25 |
Groundwater |
2 |
0 |
| Goodwin Conservation Center |
25 |
Groundwater |
2 |
0 |
| Little River Plaza |
25 |
Groundwater |
2 |
0 |
| Scotland Fire Dept |
25 |
Groundwater |
2 |
0 |
| 19 Putnam Rd Store LLC |
25 |
Groundwater |
1 |
0 |
| Apollo Restaurant and Pizza |
25 |
Groundwater |
1 |
0 |
| Bestway Food & Fuel Chaplin |
25 |
Groundwater |
1 |
0 |
| Brooklyn's Country View Restaurant |
25 |
Groundwater |
1 |
0 |
| Camp Woodstock - Bath Shower Well |
25 |
Groundwater |
1 |
0 |
| Chaplin Senior Center |
25 |
Groundwater |
1 |
0 |
| Eastford Baptist Church |
25 |
Groundwater |
1 |
0 |
| Glorias Kitchen |
25 |
Groundwater |
1 |
0 |
| Hole in the Wall Gang Camp (#2) |
25 |
Groundwater |
1 |
0 |
| Sterling Municipal Building |
25 |
Groundwater |
1 |
0 |
| Thompson Speedway-Garage |
25 |
Groundwater |
1 |
0 |
| Town of Brooklyn, Prince Hill Park |
25 |
Groundwater |
1 |
0 |
| Wrights Mill Farm - Lodge |
25 |
Groundwater |
1 |
0 |
| Zlotnicks Garage LLC |
25 |
Groundwater |
1 |
0 |
| Always Moore, LLC |
25 |
Groundwater |
0 |
0 |
| Black Pond Brews |
25 |
Groundwater |
0 |
0 |
| Cha-Wi-Ma Co-Op |
25 |
Groundwater |
0 |
0 |
| Chaar Sahibzaade Realty LLC |
25 |
Groundwater |
0 |
0 |
| Chaplin Congregational Church |
25 |
Groundwater |
0 |
0 |
| Dollar General - Chaplin |
25 |
Groundwater |
0 |
0 |
| Dollar General - Eastford |
25 |
Groundwater |
0 |
0 |
| Evangelical Covenant Church |
25 |
Groundwater |
0 |
0 |
| Flats Business Park |
25 |
Groundwater |
0 |
0 |
| Four Gs Pizzeria |
25 |
Groundwater |
0 |
0 |
| Hanks Restaurant |
25 |
Groundwater |
0 |
0 |
| Learning Clinic - Applied Arts Bldg |
25 |
Groundwater |
0 |
0 |
| North Windham Fire Department |
25 |
Groundwater |
0 |
0 |
| Oneco Market |
25 |
Groundwater |
0 |
0 |
| Quiet Corner Inn |
25 |
Groundwater |
0 |
0 |
| Route 193 LLC Restaurant |
25 |
Groundwater |
0 |
0 |
| Thompson House of Pizza |
25 |
Groundwater |
0 |
0 |
| Thompson Rod & Gun Club |
25 |
Groundwater |
0 |
0 |
| Watercure Farm, LLC |
25 |
Groundwater |
0 |
0 |