Water quality in Niantic, Connecticut

Niantic is in New London County. 392 active public water systems serve the county; 204 had an EPA violation in the past three years.

Most likely your provider

East Lyme Water & Sewer Commission CT0450011 · Community water system · Surface water purchased · East Lyme

Serves 15,245 people Rules violated, past 3 years 1 Last sanitary survey Nov 8, 2023 Distance 2.1 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in New London County

87 systems, nearest first

System	Serves	Rules violated, 3 yr	Distance
Ctwc Shoreline Region-Point O Woods Old Lyme	1,068	0	3.2 mi
Waterford Wpca Montville, New London, Waterford	16,578	2	4.1 mi
Chadwick Homeowners Assn., Inc. Old Lyme	292	1	4.1 mi
Rye Field Manor Elderly Housing Old Lyme	78	0	4.6 mi
Ctwc Shoreline Region-Sound View Old Lyme	3,397	0	4.9 mi
Lymewood Elderly Housing Old Lyme	50	2	4.9 mi
New London Dept. of Public Utilities New London, Waterford	27,620	1	5.4 mi
Laurel Heights Association, Inc. Old Lyme	45	2	5.8 mi
Mile Creek Apartments Old Lyme	60	3	6.0 mi
Lyme Academy Apartments,llc Old Lyme	48	4	6.5 mi
Boxwood Condominium Association Old Lyme	28	5	6.7 mi
Lyme Regis, Inc. Old Lyme	32	0	7.0 mi
Waterford Country School, Inc. Waterford	180	0	7.1 mi
Deer Run Supply Montville	84	2	7.7 mi
Groton Utilities Groton, Ledyard	30,200	1	8.4 mi
Scwa, Hillcrest Division (hlc) Montville	450	0	9.0 mi
Scwa, Oakdale Heights Division Montville	876	2	9.1 mi
Oakridge Village Montville	33	5	9.3 mi
Independence Village Elderly Housing Montville	55	1	9.4 mi
Groton Long Point Association Groton	2,400	2	9.9 mi
Scwa, Robin Hill Division (rbn) Montville	388	0	9.9 mi
Scwa, Chesterfield Division Montville	524	0	10.0 mi
Scwa, Tower-Ferry View Division Ledyard	2,567	1	10.2 mi
Marina Cove Montville	70	1	10.3 mi
Crystal Lake Condominiums Salem	184	0	10.4 mi

All 88 community water systems in New London County

Non-community systems in New London County (304: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

System	Serves	Rules violated, 3 yr	Unresolved
Eastport-North Old Lyme	100	1	1
Eastport West Old Lyme	50	2	1
Eastport West 2 Old Lyme	30	1	1
Eastport Ii, LLC Old Lyme	30	1	1
Learn Old Lyme	53	2	2
Noble Energy East Lyme	25	0	0
Black Hall Club Old Lyme	25	0	0
South Shore Landing Old Lyme	82	0	0
A Behavioral Approach Old Lyme	75	0	0
Old Lyme Marketplace Old Lyme	70	1	1
Old Lyme Inn Old Lyme	45	1	1
Graybill Properties, LLC Old Lyme	35	0	0
Hallmark Drive-In Old Lyme	33	0	0
The Village Shops Old Lyme	33	0	0
Advanced Family Dentistry of Old Lyme Old Lyme	31	0	0
Lyme Senior Center Old Lyme	25	0	0
Old Lyme Pizza Palace Inc. Old Lyme	25	0	0
Hains Park Old Lyme	25	2	1
Laysville Center Stores Old Lyme	25	0	0
163 Boston Post Road Old Lyme	25	1	1
Graybill Properties, LLC Old Lyme	30	0	0
All Pro Automotive Old Lyme	35	0	0
High Hopes Therapeutic Riding INC Old Lyme	44	0	0
Saint Anns Church Old Lyme	25	0	0
Old Lyme Country Club House Old Lyme	25	0	0
Old Lyme Country Club Pool Cabana Old Lyme	25	1	0
Old Lyme Country Club Tennis Court Old Lyme	25	0	0
The Williams School Ballfield Waterford	25	0	0
Region 18 Schools Lyme Street Old Lyme	1,102	0	0
Lyme Art Association Old Lyme	25	0	0
Florence Griswold Museum Old Lyme	25	0	0
Old Lyme Childrens Learning Center, INC Old Lyme	50	1	1
Old Lyme Library Old Lyme	25	0	0
Lyme Academy of Fine Arts Old Lyme	300	1	1
Town Woods Park Old Lyme	25	3	1
First Congregational Church of Old Lyme Old Lyme	25	0	0
Church of Christ the King Old Lyme	305	0	0
Precious Memories Daycare Center Groton	169	0	0
Comcast Cablevision Groton	35	0	0
GR Companies, Inc. Groton	35	0	0
Old Lyme Shopping Center Old Lyme	100	1	1
Jia Mei LLC Old Lyme	42	0	0
85 Halls Road Old Lyme	25	0	0
Long River Local Old Lyme	25	1	0
1434 Route 85 Montville	44	0	0
Deep Marine Headquarters Old Lyme	50	1	1
Deer Run Stable, LLC (citgo Gas Station) Montville	25	0	0
Renaldis One Stop Montville	25	0	0
The Chesterfield Fire Company, Inc. Montville	26	1	0
Natures Art Montville	25	0	0

All non-community systems

About this data

Water systems are matched to New London County, nearest to Niantic first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.

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.

Water quality in Niantic, Connecticut

Most likely your provider

Other community water systems in New London County

Compliant

Violations in the past 3 years

Serious violator

Health flag

Inactive system