Tap Truth EPA drinking water records, in plain English

County drinking water records

Southeastern Connecticut Planning Region, CT drinking water systems

80 community water systems serve Southeastern Connecticut Planning Region, CT, reporting 228,786 people served in all. A system that also serves other counties counts all of its customers here.

32 of them (40%) had at least one health-based violation in the last 10 years. 24 systems still have one unresolved.

64 rely mainly on groundwater and 16 on surface water, counting water bought from other systems.

Their lead service line inventories list 874 lead lines, 92 galvanized lines that must be replaced and 19,254 lines of unknown material.

Community water systems
80
People served, sum of each system's own figure
228,786
Systems with a health-based violation, last 10 years
32
Systems with one unresolved
24
Lead service lines in inventories
874

Water systems serving Southeastern Connecticut Planning Region

80 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Norwich Public Utilities Norwich 36,163 Surface water 7 0 12
Groton Utilities Conning Towers-Nautilus Park, Groton and 4 more 30,200 Surface water 0 0 4
New London Dept. of Public Utilities New London 27,620 Surface water 0 0 526
Mashantucket Pequot Water System Pawcatuck 26,445 Groundwater under direct influence 2 0 0
Windham Water Works Willimantic and South Windham 21,214 Surface water 0 0 329
Waterford Wpca Waterford and land outside it 16,578 Purchased surface water 0 1 2
East Lyme Water & Sewer Commission Niantic and land outside it 15,245 Purchased surface water 0 0 0
Aquarion-Mystic Mystic, Old Mystic and 1 more 10,788 Surface water 0 0 1
Jewett City Water Company Jewett City and land outside it 6,840 Surface water 1 0 0
Colchester Sewer & Water Commission Colchester 4,020 Groundwater 0 0 0
Ledyard Wpca - Ledyard Center Outside cities and towns 3,294 Purchased surface water 3 0 0
Scwa, Montville Division (MTV) Outside cities and towns 2,570 Groundwater 0 0 0
Scwa, Tower-Ferry View Division Outside cities and towns 2,567 Groundwater 1 1 0
Groton Long Point Association Groton Long Point 2,400 Purchased surface water 0 0 0
Ledyard Wpca, Gales Ferry System Gales Ferry and land outside it 2,369 Purchased surface water 0 0 0
Noank Fire District Noank 1,947 Purchased surface water 0 0 0
Scwa, North Stonington Division (NST) Outside cities and towns 1,860 Groundwater 1 1 0
Scwa, Mohegan Division Outside cities and towns 1,428 Groundwater 0 0 0
Montville Water Supply Oxoboxo River and Gales Ferry and land outside them 1,300 Purchased surface water 0 0 0
Sprague Water & Sewer Authority Baltic 1,058 Groundwater 0 0 0
CTWC - Amston Lake Division Outside cities and towns 910 Groundwater 0 0 0
Scwa, Oakdale Heights Division Outside cities and towns 876 Groundwater 1 1 0
Scwa, Ledyard Center Division Outside cities and towns 652 Groundwater 0 0 0
Preston Plains Water Company Outside cities and towns 550 Groundwater 1 0 0
Scwa, Chesterfield Division Outside cities and towns 524 Groundwater 0 0 0
Kitemaug Orchard Association, Inc. Outside cities and towns 490 Groundwater 0 0 0
Scwa, Hillcrest Division (HLC) Oxoboxo River 450 Purchased surface water 0 0 0
CTWC - Shoreline Region-Masons Island Outside cities and towns 445 Purchased surface water 0 0 0
CTWC - Bay Mountain Outside cities and towns 440 Groundwater 0 0 0
Aquarion-Arlington Acres Outside cities and towns 392 Groundwater 0 0 0
Scwa, Robin Hill Division (RBN) Outside cities and towns 388 Groundwater 0 0 0
Scwa, Cedar Ridge Division Outside cities and towns 370 Groundwater 1 0 0
Aquarion-Pleasure Valley Norwich 328 Groundwater 0 0 0
Jewett City Water Co., S & W System Outside cities and towns 320 Groundwater 0 0 0
Wyndham Park Apartments Outside cities and towns 312 Groundwater 0 0 0
Sunny Waters Mobile Home Park Norwich 303 Groundwater 0 0 0
Meadows Apartments Outside cities and towns 301 Groundwater 0 0 0
Scwa, Barrett Division (Bar) Outside cities and towns 300 Groundwater 0 0 0
Colchester Estates Outside cities and towns 276 Groundwater 1 3 0
St. Thomas More School-Main System Outside cities and towns 270 Groundwater 0 0 0
CTWC - Westchester Village Outside cities and towns 252 Groundwater 0 0 0
Westchester Hills Condominium Assn. Outside cities and towns 225 Groundwater 1 0 0
Colchester Commons Outside cities and towns 224 Groundwater 2 2 0
CTWC - Country Mobile Div. Outside cities and towns 186 Groundwater 0 0 0
Crystal Lake Condominiums Outside cities and towns 184 Groundwater 0 0 0
Waterford Country School, Inc. Outside cities and towns 180 Groundwater 0 0 0
Carefree Homeowners Association Outside cities and towns 172 Groundwater 1 2 0
Scwa, Chriswood Division (CWD) Outside cities and towns 164 Groundwater 0 0 0
Lisbon Mobile Homes Outside cities and towns 155 Groundwater 0 0 0
Aquarion-Lebanon Outside cities and towns 149 Groundwater 0 0 0
Jewett City Water Co-Hill-N-Dale Outside cities and towns 146 Groundwater 0 0 0
Douglas Manor Outside cities and towns 135 Groundwater 1 0 0
Ash Water Company, LLC Outside cities and towns 108 Groundwater 0 0 0
Scwa, Birchwood Division (BWD) Outside cities and towns 108 Groundwater 0 0 0
Mountview Apartments Outside cities and towns 105 Groundwater 7 2 0
Griswold MHP LLC Outside cities and towns 99 Groundwater 1 2 0
Green Village II Outside cities and towns 96 Groundwater 0 0 0
Knob Hill Condominiums Outside cities and towns 84 Groundwater 0 0 0
Deer Run Supply Outside cities and towns 84 Groundwater 1 2 0
Lincoln Park Elderly Housing Outside cities and towns 80 Groundwater 1 2 0
Northstone Gardens Outside cities and towns 79 Groundwater 3 2 0
Thompson Hill Water Co - Beechwood Acres Outside cities and towns 77 Groundwater 2 2 0
Ashland Pond Mobile Home Park Outside cities and towns 74 Groundwater 1 2 0
Lakeside Manor Apartments Outside cities and towns 72 Groundwater 2 3 0
Marina Cove Outside cities and towns 70 Groundwater 2 0 0
Oakridge Gardens, LLC Outside cities and towns 70 Groundwater 1 0 0
CTWC - Lebanon Elderly Div. Outside cities and towns 67 Groundwater 1 0 0
Mystic Village Apartments Old Mystic 66 Groundwater 0 1 0
CTWC - Ponemah Village Outside cities and towns 60 Groundwater 0 0 0
Neighbors of Rogers, LLC Outside cities and towns 57 Groundwater 1 3 0
Independence Village Elderly Housing Oxoboxo River 55 Groundwater 1 2 0
Freedom Village Elderly Housing Outside cities and towns 43 Groundwater 4 4 0
Tunnel Hill Mobile Home Park Outside cities and towns 40 Groundwater 0 0 0
Fox Laurel Mobile Home Park, LLC Outside cities and towns 40 Groundwater 3 2 0
Village Hill Apartments Outside cities and towns 36 Groundwater 1 2 0
Oakridge Village Outside cities and towns 33 Groundwater 0 1 0
Salem Manor Condominiums, System #1 Outside cities and towns 32 Groundwater 2 2 0
Scwa, Seven Oaks (Oak) Outside cities and towns 26 Groundwater 0 0 0
St. Thomas More School-The Cove Outside cities and towns 25 Groundwater 0 0 0
Salem Manor Condominiums, System #2 Outside cities and towns 25 Groundwater 1 3 0

Cities and towns in Southeastern Connecticut Planning Region

21 places

Back to Connecticut

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations