Tap Truth EPA drinking water records, in plain English

County drinking water records

Naugatuck Valley Planning Region, CT drinking water systems

39 community water systems serve Naugatuck Valley Planning Region, CT, reporting 1,063,003 people served in all. A system that also serves other counties counts all of its customers here.

7 of them (18%) had at least one health-based violation in the last 10 years. 11 systems still have one unresolved.

27 rely mainly on groundwater and 12 on surface water, counting water bought from other systems.

36 systems filed a lead service line inventory listing 6,487 lead lines, 2,934 galvanized lines that must be replaced and 98,843 lines of unknown material.

3 more systems are placed in Naugatuck Valley Planning Region, CT by mailing address or by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
39
People served, sum of each system's own figure
1,063,003
Systems with a health-based violation, last 10 years
7
Systems with one unresolved
11
Lead service lines in inventories
6,487

Water systems serving Naugatuck Valley Planning Region

39 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
Regional Water Authority Milford, New Haven and 10 more 418,900 Surface water 0 0 17
Aquarion-Eastern Fairfield County Shelton, Stamford and 43 more 351,756 Surface water 0 0 3,948
Waterbury Water Department Waterbury 107,271 Surface water 0 1 952
Aquarion-Greenwich Outside cities and towns 53,297 Surface water 0 0 1,553
Bristol Water Department Bristol 52,079 Surface water 0 0 0
CTWC - Naugatuck Region-Central System Naugatuck and Waterbury 22,735 Surface water 0 0 1
Aquarion-Valley Outside cities and towns 13,080 Purchased surface water 0 0 12
Watertown Water & Sewer Authority Oakville and Watertown 9,972 Purchased surface water 0 0 0
Heritage Water Company Heritage Village and land outside it 7,300 Purchased surface water 0 0 0
Watertown Fire District Watertown 6,718 Groundwater 0 1 0
CTWC - Naugatuck Reg-Terryville System Terryville and land outside it 5,607 Groundwater 0 0 1
CTWC - Naugatuck Reg-Thomaston System Thomaston and land outside it 3,789 Groundwater 0 0 0
Wolcott Water Department Outside cities and towns 2,550 Purchased surface water 0 0 0
Aquarion-Woodbury Woodbury Center 1,209 Groundwater 0 0 3
Aquarion-East Derby Derby 1,101 Purchased surface water 0 1 0
Woodlake Tax District Outside cities and towns 912 Groundwater 0 0 0
Southbury Training School Outside cities and towns 816 Groundwater 0 1 0
Watertown Water & Sewer - Westgate Outside cities and towns 600 Purchased groundwater 0 0 0
Harmony Acres Mobile Home Park Outside cities and towns 465 Groundwater 0 1 0
Aquarion-Lakeside Outside cities and towns 455 Groundwater 0 0 0
Arrowhead By the Lake Association, Inc. Outside cities and towns 288 Groundwater 0 0 0
Woodbury Knoll, LLC. Outside cities and towns 258 Groundwater 1 2 0
Countryside Apartments Outside cities and towns 218 Groundwater 1 0 0
Aquarion-Clearview Hills Outside cities and towns 215 Purchased groundwater 0 0 0
Idleview Mobile Home Park Naugatuck 138 Groundwater 0 0 0
Aquarion-Hawkstone Outside cities and towns 120 Purchased surface water 0 0 0
Town in Country Condominiums - Upper Sys Outside cities and towns 120 Groundwater 0 0 0
Heritage Hill Condominium Assn, Inc Outside cities and towns 120 Groundwater 1 2 0
Town in Country Condominiums - Lower Sys Outside cities and towns 120 Groundwater 0 0 0
Quassuk Heights Condominium Assn Outside cities and towns 108 Groundwater 0 0 0
Lake Hills Village Condominiums Outside cities and towns 102 Groundwater 1 3 No inventory
Aquarion-West Shore Outside cities and towns 100 Groundwater 0 0 0
Crestview Condominium Association Outside cities and towns 84 Groundwater 1 6 No inventory
Middlebury Commons Outside cities and towns 76 Groundwater 0 0 0
North Purchase Elderly Housing Bethlehem Village 72 Groundwater 0 0 0
Aquarion-Woodrich Village Outside cities and towns 72 Groundwater 0 0 0
Woodbury Place Condominium Assn Outside cities and towns 72 Groundwater 0 0 0
Woodhall School, Inc Bethlehem Village 68 Groundwater 3 1 0
Oakdale Manor Water Association Outside cities and towns 40 Groundwater 3 3 No inventory

Systems placed by mailing address or county record in Naugatuck Valley Planning Region

3 systems

EPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. They are placed by mailing address or by the county their records name, and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Aquarion-Plainville Regional County on record 18,231 Groundwater 0 0 6
CTWC - Unionville System County on record 14,693 Purchased surface water 1 0 0
Aquarion-Oxford Towne Center Mailing address in Shelton 449 Purchased groundwater 0 0 0

Cities and towns in Naugatuck Valley Planning Region

14 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