Water quality for ZIP code 11956
ZIP 11956 covers New Suffolk and Cutchogue in Suffolk County, New York, one of 108 ZIP codes in the 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 | 7.2 mi | |
| West Neck Water District Shelter Island (t) |
100 | 0 | 9.1 mi | |
| Shelter Island Heights Association Shelter Island (t) |
500 | 2 | 9.4 mi | |
| Calverton Hills Owners Association Brookhaven (t) |
897 | 2 | 11.0 mi | |
| Greenport Water District Southold (t) |
2,050 | 1 | 11.1 mi | |
| Peconic River Mobile Home Park Riverhead (t) |
75 | 0 | 11.9 mi | |
| Riverhead Water District Riverhead (t) |
35,000 | 1 | 13.5 mi | |
| Peconic View Mobile Home Park Riverhead (t) |
40 | 0 | 13.5 mi | |
| Fishers Island Water Works Southold (t) |
380 | 1 | 14.5 mi | |
| Dering Harbor Water District Shelter Island (t) |
14 | 0 | 14.9 mi | |
| Maidstone Park Cottages East Hampton (v) |
34 | 2 | 15.4 mi | |
| Riverside Water District Southampton (v) |
2,050 | 0 | 19.3 mi | |
| Brookhaven National Laboratory Brookhaven (t) |
3,500 | 0 | 22.2 mi | |
| Seaview Water Company Brookhaven (t) |
1,400 | 0 | 26.8 mi | |
| ST James Water District Smithtown (t) |
10,587 | 0 | 36.4 mi | |
| Smithtown Water District Smithtown (t) |
19,635 | 0 | 40.3 mi | |
| Ocean Beach Water District Islip (t) |
4,500 | 0 | 42.6 mi | |
| Saltaire Water District Islip (t) |
2,000 | 0 | 44.2 mi | |
| Greenlawn Water District Huntington (t) |
42,000 | 3 | 46.8 mi | |
| Dix Hills Water District Huntington (t) |
34,522 | 1 | 47.6 mi | |
| Robert Moses State Park Babylon (t) |
11,600 | 0 | 49.0 mi | |
| Oak Beach Public Water Supply Babylon (t) |
66 | 1 | 49.2 mi | |
| Northport VA Hospital Huntington (t) |
3,088 | 1 | 49.7 mi | |
| South Huntington Water District Huntington (t) |
81,760 | 1 | 51.0 mi | |
| West Gilgo Beach Association Babylon (t) |
300 | 0 | 55.8 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 |
|---|---|---|---|---|
|
LA Antigua Southold (t) |
150 | 0 | 0 | |
|
McCall Farm Winery Southold (t) |
40 | 0 | 0 | |
|
Pugliese Vineyards Southold (t) |
50 | 1 | 0 | |
|
Shelter Island Iga Market Shelter Island (t) |
100 | 0 | 0 | |
|
Lenz Winery Southold (t) |
50 | 2 | 0 | |
|
Rose Hill Vineyards |
30 | 0 | 0 | |
|
South Harbor Park Southold (t) |
50 | 0 | 0 | |
|
EV and EM Vineyard Riverhead (t) |
100 | 0 | 0 | |
|
Sandy Hollow Day Camp Southampton (t) |
120 | 0 | 0 | |
|
Corey Creek Vineyards Southold (t) |
75 | 1 | 0 | |
|
BP Mart Peconic Southold (t) |
100 | 1 | 0 | |
|
Sea Haven Resort Motel (fna Sun+sand) Southampton (v) |
50 | 0 | 0 | |
|
Mill Creek Marina Southampton (t) |
100 | 0 | 0 | |
|
Atlantic Golf Club Southampton (t) |
100 | 0 | 0 | |
|
Kingdom Hall of Jehovah Witnesses |
500 | 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 | |
|
Island Boatyard & Marina Shelter Island (t) |
100 | 0 | 0 | |
|
Wades Beach Shelter Island (t) |
75 | 0 | 0 | |
|
Eccentric Bagel Shelter Island (t) |
50 | 0 | 0 | |
|
American Legion Post #281 Shelter Island (t) |
100 | 0 | 0 | |
|
Shelter Island Library |
258 | 0 | 0 | |
|
Shelter Island School Shelter Island (t) |
315 | 1 | 0 | |
|
Shelter Island Town Hall Shelter Island (t) |
50 | 0 | 0 | |
|
Shelter Island Nutrition Program Shelter Island (t) |
75 | 0 | 0 | |
|
Kyles (previously Cafe 27) Shelter Island (t) |
150 | 0 | 0 | |
|
All Seasons Catering Shelter Island (t) |
50 | 0 | 0 | |
|
Marias Kitchen Shelter Island (t) |
25 | 0 | 0 | |
|
Shelter Island Senior Citizens Center Shelter Island (t) |
35 | 0 | 0 | |
|
Opties and Dinghies Shelter Island (t) |
50 | 0 | 0 | |
|
Cards Cottages Shelter Island (t) |
60 | 0 | 0 | |
|
Vine Street Cafe Shelter Island (t) |
80 | 0 | 0 | |
|
Ellis Country Market Shelter Island (t) |
50 | 0 | 0 | |
|
Wolffer Estate Vineyard Southampton (t) |
50 | 0 | 0 | |
|
Bridge Street Water Shelter Island (t) |
75 | 0 | 0 | |
|
Mashomack Pres. Visitor Ctr. Shelter Island (t) |
50 | 0 | 0 | |
|
Sylvester Manor |
100 | 0 | 0 | |
|
Dering Harbor Corp Shelter Island (t) |
250 | 0 | 0 | |
|
Old Stove Pub Southampton (t) |
150 | 1 | 0 | |
|
Sag Harbor State Golf Course Southampton (t) |
200 | 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 | |
|
Coecles Harbor Marina Shelter Island (t) |
150 | 0 | 0 | |
|
Gardiners Bay Country Club Shelter Island (t) |
100 | 0 | 0 | |
|
LA Capannina Southampton (t) |
100 | 0 | 0 | |
|
Wolffer Estates Stables Southampton (t) |
45 | 1 | 0 |
About this data
Water systems are matched to Suffolk County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.