Water quality in Southampton, New York
Southampton is in Suffolk County. 146 active public water systems serve the county; 25 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Suffolk County
25 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Hampton Bays Water District Southampton (t) |
12,500 | 0 | 7.0 mi | |
| West Neck Water District Shelter Island (t) |
100 | 0 | 10.0 mi | |
| Shelter Island Heights Association Shelter Island (t) |
500 | 2 | 10.2 mi | |
| Greenport Water District Southold (t) |
2,050 | 1 | 12.7 mi | |
| Calverton Hills Owners Association Brookhaven (t) |
897 | 2 | 12.9 mi | |
| Peconic River Mobile Home Park Riverhead (t) |
75 | 0 | 13.8 mi | |
| Maidstone Park Cottages East Hampton (v) |
34 | 2 | 13.8 mi | |
| Dering Harbor Water District Shelter Island (t) |
14 | 0 | 14.1 mi | |
| Peconic View Mobile Home Park Riverhead (t) |
40 | 0 | 15.5 mi | |
| Fishers Island Water Works Southold (t) |
380 | 1 | 15.6 mi | |
| Riverhead Water District Riverhead (t) |
35,000 | 1 | 15.9 mi | |
| Riverside Water District Southampton (v) |
2,050 | 0 | 21.1 mi | |
| Brookhaven National Laboratory Brookhaven (t) |
3,500 | 0 | 24.1 mi | |
| Seaview Water Company Brookhaven (t) |
1,400 | 0 | 28.0 mi | |
| ST James Water District Smithtown (t) |
10,587 | 0 | 38.7 mi | |
| Smithtown Water District Smithtown (t) |
19,635 | 0 | 42.5 mi | |
| Ocean Beach Water District Islip (t) |
4,500 | 0 | 43.6 mi | |
| Saltaire Water District Islip (t) |
2,000 | 0 | 45.3 mi | |
| Greenlawn Water District Huntington (t) |
42,000 | 3 | 49.0 mi | |
| Dix Hills Water District Huntington (t) |
34,522 | 1 | 49.6 mi | |
| Oak Beach Public Water Supply Babylon (t) |
66 | 1 | 50.4 mi | |
| Robert Moses State Park Babylon (t) |
11,600 | 0 | 50.5 mi | |
| Northport VA Hospital Huntington (t) |
3,088 | 1 | 52.0 mi | |
| South Huntington Water District Huntington (t) |
81,760 | 1 | 53.0 mi | |
| West Gilgo Beach Association Babylon (t) |
300 | 0 | 57.1 mi |
Non-community systems in Suffolk County (120: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sandy Hollow Day Camp Southampton (t) |
120 | 0 | 0 | |
|
Kingdom Hall of Jehovah Witnesses |
500 | 0 | 0 | |
|
Atlantic Golf Club Southampton (t) |
100 | 0 | 0 | |
|
Sea Haven Resort Motel (fna Sun+sand) Southampton (v) |
50 | 0 | 0 | |
|
Mill Creek Marina Southampton (t) |
100 | 0 | 0 | |
|
LA Antigua Southold (t) |
150 | 0 | 0 | |
|
McCall Farm Winery Southold (t) |
40 | 0 | 0 | |
|
Wolffer Estate Vineyard Southampton (t) |
50 | 0 | 0 | |
|
Pugliese Vineyards Southold (t) |
50 | 1 | 0 | |
|
South Harbor Park Southold (t) |
50 | 0 | 0 | |
|
Lenz Winery Southold (t) |
50 | 2 | 0 | |
|
Shelter Island Iga Market Shelter Island (t) |
100 | 0 | 0 | |
|
Old Stove Pub Southampton (t) |
150 | 1 | 0 | |
|
Corey Creek Vineyards Southold (t) |
75 | 1 | 0 | |
|
EV and EM Vineyard Riverhead (t) |
100 | 0 | 0 | |
|
BP Mart Peconic Southold (t) |
100 | 1 | 0 | |
|
Rose Hill Vineyards |
30 | 0 | 0 | |
|
LA Capannina Southampton (t) |
100 | 0 | 0 | |
|
Townline Bbq East Hampton (t) |
150 | 0 | 0 | |
|
Wolffer Estates Stables Southampton (t) |
45 | 1 | 0 | |
|
Speedway #7794 (fna Hess General Store) East Hampton (t) |
200 | 0 | 0 | |
|
Sag Harbor State Golf Course Southampton (t) |
200 | 0 | 0 | |
|
Island Boatyard & Marina Shelter Island (t) |
100 | 0 | 0 | |
|
Wades Beach Shelter Island (t) |
75 | 0 | 0 | |
|
Oysterpond Elementary School Southold (t) |
106 | 1 | 0 | |
|
Jefferson Temple Church of God in Christ Southold (t) |
100 | 0 | 0 | |
|
Pridwin Hotel Shelter Island (t) |
100 | 0 | 0 | |
|
Shelter Island Senior Citizens Center Shelter Island (t) |
35 | 0 | 0 | |
|
Buckskill Tennis Club East Hampton (v) |
60 | 0 | 0 | |
|
American Legion Post #281 Shelter Island (t) |
100 | 0 | 0 | |
|
Mashomack Pres. Visitor Ctr. Shelter Island (t) |
50 | 0 | 0 | |
|
Shelter Island School Shelter Island (t) |
315 | 1 | 0 | |
|
Vine Street Cafe Shelter Island (t) |
80 | 0 | 0 | |
|
Shelter Island Library |
258 | 0 | 0 | |
|
Kyles (previously Cafe 27) Shelter Island (t) |
150 | 0 | 0 | |
|
Shelter Island Town Hall Shelter Island (t) |
50 | 0 | 0 | |
|
Ellis Country Market Shelter Island (t) |
50 | 0 | 0 | |
|
Shelter Island Nutrition Program Shelter Island (t) |
75 | 0 | 0 | |
|
All Seasons Catering Shelter Island (t) |
50 | 0 | 0 | |
|
Eccentric Bagel Shelter Island (t) |
50 | 0 | 0 | |
|
Marias Kitchen Shelter Island (t) |
25 | 0 | 0 | |
|
Whales Tale Shelter Island (t) |
150 | 0 | 0 | |
|
Perlman Music School Shelter Island (t) |
80 | 0 | 0 | |
|
Islander(pat & Steves Family Restaurant Shelter Island (t) |
75 | 0 | 0 | |
|
Shelter Island Slice Shelter Island (t) |
60 | 1 | 0 | |
|
Commander Cody Seafood Shelter Island (t) |
50 | 0 | 0 | |
|
Cards Cottages Shelter Island (t) |
60 | 0 | 0 | |
|
Opties and Dinghies Shelter Island (t) |
50 | 0 | 0 | |
|
Sylvester Manor |
100 | 0 | 0 | |
|
Bridge Street Water Shelter Island (t) |
75 | 0 | 0 |
About this data
Water systems are matched to Suffolk County, nearest to Southampton 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 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 New York 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.