Water quality in Jamesport, New York
Jamesport 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 |
|---|---|---|---|---|
| Calverton Hills Owners Association Brookhaven (t) |
897 | 2 | 5.4 mi | |
| Peconic River Mobile Home Park Riverhead (t) |
75 | 0 | 5.9 mi | |
| Hampton Bays Water District Southampton (t) |
12,500 | 0 | 6.7 mi | |
| Peconic View Mobile Home Park Riverhead (t) |
40 | 0 | 7.4 mi | |
| Riverside Water District Southampton (v) |
2,050 | 0 | 13.3 mi | |
| West Neck Water District Shelter Island (t) |
100 | 0 | 14.4 mi | |
| Shelter Island Heights Association Shelter Island (t) |
500 | 2 | 14.8 mi | |
| Greenport Water District Southold (t) |
2,050 | 1 | 15.5 mi | |
| Brookhaven National Laboratory Brookhaven (t) |
3,500 | 0 | 16.1 mi | |
| Fishers Island Water Works Southold (t) |
380 | 1 | 19.2 mi | |
| Suffolk County Water Authority Babylon (t), Brookhaven (t), East Hampton (t) and 6 more |
1,100,000 | 0 | 19.9 mi | |
| Dering Harbor Water District Shelter Island (t) |
14 | 0 | 21.0 mi | |
| Seaview Water Company Brookhaven (t) |
1,400 | 0 | 21.2 mi | |
| Maidstone Park Cottages East Hampton (v) |
34 | 2 | 21.7 mi | |
| ST James Water District Smithtown (t) |
10,587 | 0 | 30.1 mi | |
| Smithtown Water District Smithtown (t) |
19,635 | 0 | 33.9 mi | |
| Ocean Beach Water District Islip (t) |
4,500 | 0 | 37.0 mi | |
| Saltaire Water District Islip (t) |
2,000 | 0 | 38.5 mi | |
| Greenlawn Water District Huntington (t) |
42,000 | 3 | 40.5 mi | |
| Dix Hills Water District Huntington (t) |
34,522 | 1 | 41.3 mi | |
| Robert Moses State Park Babylon (t) |
11,600 | 0 | 43.0 mi | |
| Northport VA Hospital Huntington (t) |
3,088 | 1 | 43.4 mi | |
| Oak Beach Public Water Supply Babylon (t) |
66 | 1 | 43.5 mi | |
| South Huntington Water District Huntington (t) |
81,760 | 1 | 44.7 mi | |
| West Gilgo Beach Association Babylon (t) |
300 | 0 | 49.9 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 |
|---|---|---|---|---|
|
EV and EM Vineyard Riverhead (t) |
100 | 0 | 0 | |
|
Shelter Island Iga Market Shelter Island (t) |
100 | 0 | 0 | |
|
Rose Hill Vineyards |
30 | 0 | 0 | |
|
McCall Farm Winery Southold (t) |
40 | 0 | 0 | |
|
LA Antigua Southold (t) |
150 | 0 | 0 | |
|
Sea Haven Resort Motel (fna Sun+sand) Southampton (v) |
50 | 0 | 0 | |
|
Pugliese Vineyards Southold (t) |
50 | 1 | 0 | |
|
Hampton Hills Golf Club Southampton (t) |
150 | 0 | 0 | |
|
Coastal Pipeline Corp. Riverhead (t) |
30 | 0 | 0 | |
|
Lenz Winery Southold (t) |
50 | 2 | 0 | |
|
BP Mart Peconic Southold (t) |
100 | 1 | 0 | |
|
Corey Creek Vineyards Southold (t) |
75 | 1 | 0 | |
|
South Harbor Park Southold (t) |
50 | 0 | 0 | |
|
Sandy Hollow Day Camp Southampton (t) |
120 | 0 | 0 | |
|
Oysterpond Elementary School Southold (t) |
106 | 1 | 0 | |
|
Jefferson Temple Church of God in Christ Southold (t) |
100 | 0 | 0 | |
|
Mill Creek Marina Southampton (t) |
100 | 0 | 0 | |
|
Eastport Animal Hospital Brookhaven (t) |
50 | 0 | 0 | |
|
Atlantic Golf Club Southampton (t) |
100 | 0 | 0 | |
|
Rock Hill Country Club Brookhaven (t) |
150 | 0 | 0 | |
|
Ighl, East Moriches Brookhaven (t) |
50 | 0 | 0 | |
|
78 Montauk Highway LLC (previouslypiffe) |
100 | 0 | 0 | |
|
Kingdom Hall of Jehovah Witnesses |
500 | 0 | 0 | |
|
94 Montauk Highway |
25 | 0 | 0 | |
|
Pridwin Hotel Shelter Island (t) |
100 | 0 | 0 | |
|
Long Island Game Farm Brookhaven (t) |
200 | 0 | 0 | |
|
Island Boatyard & Marina Shelter Island (t) |
100 | 0 | 0 | |
|
Eccentric Bagel Shelter Island (t) |
50 | 0 | 0 | |
|
Wades Beach Shelter Island (t) |
75 | 0 | 0 | |
|
American Legion Post #281 Shelter Island (t) |
100 | 0 | 0 | |
|
Shelter Island Library |
258 | 0 | 0 | |
|
Bridge Street Water Shelter Island (t) |
75 | 0 | 0 | |
|
Shelter Island Town Hall Shelter Island (t) |
50 | 0 | 0 | |
|
Shelter Island School Shelter Island (t) |
315 | 1 | 0 | |
|
Shelter Island Nutrition Program Shelter Island (t) |
75 | 0 | 0 | |
|
Marias Kitchen Shelter Island (t) |
25 | 0 | 0 | |
|
Kyles (previously Cafe 27) Shelter Island (t) |
150 | 0 | 0 | |
|
Opties and Dinghies Shelter Island (t) |
50 | 0 | 0 | |
|
All Seasons Catering Shelter Island (t) |
50 | 0 | 0 | |
|
Dering Harbor Corp Shelter Island (t) |
250 | 0 | 0 | |
|
Cards Cottages Shelter Island (t) |
60 | 0 | 0 | |
|
East Moriches Primary Care |
500 | 0 | 0 | |
|
Sylvester Manor |
100 | 0 | 0 | |
|
Shelter Island Senior Citizens Center Shelter Island (t) |
35 | 0 | 0 | |
|
Ellis Country Market Shelter Island (t) |
50 | 0 | 0 | |
|
Vine Street Cafe Shelter Island (t) |
80 | 0 | 0 | |
|
Mashomack Pres. Visitor Ctr. Shelter Island (t) |
50 | 0 | 0 | |
|
Coecles Harbor Marina Shelter Island (t) |
150 | 0 | 0 | |
|
Wolffer Estate Vineyard Southampton (t) |
50 | 0 | 0 | |
|
Gardiners Bay Country Club Shelter Island (t) |
100 | 0 | 0 |
About this data
Water systems are matched to Suffolk County, nearest to Jamesport 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. Retrieved from ECHO on Oct 11, 2026.