Water quality for ZIP code 11786
ZIP 11786 covers East Shoreham, Shoreham, Ridge, and Rocky Point 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 |
|---|---|---|---|---|
| Brookhaven National Laboratory Brookhaven (t) |
3,500 | 0 | 5.6 mi | |
| Riverside Water District Southampton (v) |
2,050 | 0 | 6.7 mi | |
| Riverhead Water District Riverhead (t) |
35,000 | 1 | 8.9 mi | |
| Peconic View Mobile Home Park Riverhead (t) |
40 | 0 | 9.6 mi | |
| Peconic River Mobile Home Park Riverhead (t) |
75 | 0 | 11.3 mi | |
| Seaview Water Company Brookhaven (t) |
1,400 | 0 | 12.1 mi | |
| Calverton Hills Owners Association Brookhaven (t) |
897 | 2 | 12.3 mi | |
| ST James Water District Smithtown (t) |
10,587 | 0 | 14.5 mi | |
| Smithtown Water District Smithtown (t) |
19,635 | 0 | 18.4 mi | |
| Hampton Bays Water District Southampton (t) |
12,500 | 0 | 19.6 mi | |
| Greenlawn Water District Huntington (t) |
42,000 | 3 | 24.9 mi | |
| Ocean Beach Water District Islip (t) |
4,500 | 0 | 25.3 mi | |
| Saltaire Water District Islip (t) |
2,000 | 0 | 26.1 mi | |
| Dix Hills Water District Huntington (t) |
34,522 | 1 | 26.1 mi | |
| Northport VA Hospital Huntington (t) |
3,088 | 1 | 27.6 mi | |
| Robert Moses State Park Babylon (t) |
11,600 | 0 | 29.0 mi | |
| South Huntington Water District Huntington (t) |
81,760 | 1 | 29.3 mi | |
| West Neck Water District Shelter Island (t) |
100 | 0 | 29.3 mi | |
| Greenport Water District Southold (t) |
2,050 | 1 | 29.5 mi | |
| Shelter Island Heights Association Shelter Island (t) |
500 | 2 | 29.8 mi | |
| Oak Beach Public Water Supply Babylon (t) |
66 | 1 | 30.6 mi | |
| Fishers Island Water Works Southold (t) |
380 | 1 | 33.2 mi | |
| West Gilgo Beach Association Babylon (t) |
300 | 0 | 36.3 mi | |
| Dering Harbor Water District Shelter Island (t) |
14 | 0 | 36.5 mi | |
| Maidstone Park Cottages East Hampton (v) |
34 | 2 | 37.5 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 |
|---|---|---|---|---|
|
North Shore Office Building Brookhaven (t) |
50 | 0 | 0 | |
|
BP Gas-Ridge Brookhaven (t) |
75 | 0 | 0 | |
|
555 Professional Bldg. Brookhaven (t) |
30 | 0 | 0 | |
|
First Student-Middle Island(was Laidlaw) Brookhaven (t) |
125 | 0 | 0 | |
|
Oldcastle Infrastructure Brookhaven (t) |
40 | 0 | 0 | |
|
Coastal Pipeline Corp. Riverhead (t) |
30 | 0 | 0 | |
|
Caribbean Spot Brookhaven (t) |
200 | 0 | 0 | |
|
Long Island Game Farm Brookhaven (t) |
200 | 0 | 0 | |
|
Shell Station Yaphank |
100 | 1 | 0 | |
|
Rock Hill Country Club Brookhaven (t) |
150 | 0 | 0 | |
|
Joes Kwik Mart Brookhaven (t) |
200 | 0 | 0 | |
|
Eastport Animal Hospital Brookhaven (t) |
50 | 0 | 0 | |
|
Ighl, East Moriches Brookhaven (t) |
50 | 0 | 0 | |
|
78 Montauk Highway LLC (previouslypiffe) |
100 | 0 | 0 | |
|
94 Montauk Highway |
25 | 0 | 0 | |
|
1983 Montauk Hwy Offices Coparts Brookhaven (t) |
190 | 0 | 0 | |
|
Hampton Hills Golf Club Southampton (t) |
150 | 0 | 0 | |
|
Exxon (fna Hess Mart Calverton) Brookhaven (t) |
100 | 0 | 0 | |
|
Silly Lilly Fishing Station Brookhaven (t) |
100 | 0 | 0 | |
|
Varneys Restaurant Brookhaven (t) |
48 | 0 | 0 | |
|
East Moriches Primary Care |
500 | 0 | 0 | |
|
Valero Brookhaven (t) |
1,000 | 0 | 0 | |
|
YMCA Brookhaven Roe Brookhaven (t) |
100 | 0 | 0 | |
|
Great Gun Beach Brookhaven (t) |
100 | 1 | 0 | |
|
Bellport Village Beach Brookhaven (t) |
50 | 0 | 0 | |
|
EV and EM Vineyard Riverhead (t) |
100 | 0 | 0 | |
|
Shelter Island Iga Market Shelter Island (t) |
100 | 0 | 0 | |
|
Kings Park Launch Ramp Smithtown (t) |
100 | 0 | 0 | |
|
D. S. Shanahans Smithtown (t) |
150 | 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 | |
|
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 | |
|
Pridwin Hotel Shelter Island (t) |
100 | 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 | |
|
Captree State Park Babylon (t) |
4,100 | 0 | 0 | |
|
Cedar Beach Sportfishing Educ. Center Babylon (t) |
200 | 0 | 0 | |
|
Eccentric Bagel Shelter Island (t) |
50 | 0 | 0 | |
|
Island Boatyard & Marina Shelter Island (t) |
100 | 0 | 0 | |
|
Bridge Street Water Shelter Island (t) |
75 | 0 | 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.