Water quality in Moriches, New York
Moriches 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 |
|---|---|---|---|---|
| Seaview Water Company Brookhaven (t) |
1,400 | 0 | 4.7 mi | |
| Riverside Water District Southampton (v) |
2,050 | 0 | 4.8 mi | |
| Brookhaven National Laboratory Brookhaven (t) |
3,500 | 0 | 4.9 mi | |
| Peconic View Mobile Home Park Riverhead (t) |
40 | 0 | 9.7 mi | |
| Peconic River Mobile Home Park Riverhead (t) |
75 | 0 | 10.7 mi | |
| Riverhead Water District Riverhead (t) |
35,000 | 1 | 11.0 mi | |
| Calverton Hills Owners Association Brookhaven (t) |
897 | 2 | 11.3 mi | |
| Hampton Bays Water District Southampton (t) |
12,500 | 0 | 16.6 mi | |
| ST James Water District Smithtown (t) |
10,587 | 0 | 17.8 mi | |
| Ocean Beach Water District Islip (t) |
4,500 | 0 | 20.5 mi | |
| Smithtown Water District Smithtown (t) |
19,635 | 0 | 21.2 mi | |
| Saltaire Water District Islip (t) |
2,000 | 0 | 22.0 mi | |
| Oak Beach Public Water Supply Babylon (t) |
66 | 1 | 27.1 mi | |
| Dix Hills Water District Huntington (t) |
34,522 | 1 | 27.1 mi | |
| Robert Moses State Park Babylon (t) |
11,600 | 0 | 27.2 mi | |
| Greenlawn Water District Huntington (t) |
42,000 | 3 | 27.3 mi | |
| Northport VA Hospital Huntington (t) |
3,088 | 1 | 30.6 mi | |
| South Huntington Water District Huntington (t) |
81,760 | 1 | 30.8 mi | |
| West Neck Water District Shelter Island (t) |
100 | 0 | 30.9 mi | |
| Shelter Island Heights Association Shelter Island (t) |
500 | 2 | 31.3 mi | |
| Greenport Water District Southold (t) |
2,050 | 1 | 32.1 mi | |
| West Gilgo Beach Association Babylon (t) |
300 | 0 | 33.7 mi | |
| Fishers Island Water Works Southold (t) |
380 | 1 | 35.9 mi | |
| Dering Harbor Water District Shelter Island (t) |
14 | 0 | 37.0 mi | |
| Maidstone Park Cottages East Hampton (v) |
34 | 2 | 37.1 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 |
|---|---|---|---|---|
|
East Moriches Primary Care |
500 | 0 | 0 | |
|
Long Island Game Farm Brookhaven (t) |
200 | 0 | 0 | |
|
Great Gun Beach Brookhaven (t) |
100 | 1 | 0 | |
|
Rock Hill Country Club Brookhaven (t) |
150 | 0 | 0 | |
|
94 Montauk Highway |
25 | 0 | 0 | |
|
78 Montauk Highway LLC (previouslypiffe) |
100 | 0 | 0 | |
|
Ighl, East Moriches Brookhaven (t) |
50 | 0 | 0 | |
|
Eastport Animal Hospital Brookhaven (t) |
50 | 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 | |
|
1983 Montauk Hwy Offices Coparts Brookhaven (t) |
190 | 0 | 0 | |
|
Shell Station Yaphank |
100 | 1 | 0 | |
|
BP Gas-Ridge Brookhaven (t) |
75 | 0 | 0 | |
|
Valero Brookhaven (t) |
1,000 | 0 | 0 | |
|
Bellport Village Beach Brookhaven (t) |
50 | 0 | 0 | |
|
Oldcastle Infrastructure Brookhaven (t) |
40 | 0 | 0 | |
|
First Student-Middle Island(was Laidlaw) Brookhaven (t) |
125 | 0 | 0 | |
|
Hampton Hills Golf Club Southampton (t) |
150 | 0 | 0 | |
|
Caribbean Spot Brookhaven (t) |
200 | 0 | 0 | |
|
Coastal Pipeline Corp. Riverhead (t) |
30 | 0 | 0 | |
|
Joes Kwik Mart Brookhaven (t) |
200 | 0 | 0 | |
|
YMCA Brookhaven Roe Brookhaven (t) |
100 | 0 | 0 | |
|
North Shore Office Building Brookhaven (t) |
50 | 0 | 0 | |
|
555 Professional Bldg. Brookhaven (t) |
30 | 0 | 0 | |
|
EV and EM Vineyard Riverhead (t) |
100 | 0 | 0 | |
|
Shelter Island Iga Market Shelter Island (t) |
100 | 0 | 0 | |
|
Sea Haven Resort Motel (fna Sun+sand) Southampton (v) |
50 | 0 | 0 | |
|
Rose Hill Vineyards |
30 | 0 | 0 | |
|
McCall Farm Winery Southold (t) |
40 | 0 | 0 | |
|
Kings Park Launch Ramp Smithtown (t) |
100 | 0 | 0 | |
|
D. S. Shanahans Smithtown (t) |
150 | 0 | 0 | |
|
LA Antigua Southold (t) |
150 | 0 | 0 | |
|
Sandy Hollow Day Camp Southampton (t) |
120 | 0 | 0 | |
|
Pugliese Vineyards Southold (t) |
50 | 1 | 0 | |
|
Lenz Winery Southold (t) |
50 | 2 | 0 | |
|
BP Mart Peconic Southold (t) |
100 | 1 | 0 | |
|
Captree State Park Babylon (t) |
4,100 | 0 | 0 | |
|
Corey Creek Vineyards Southold (t) |
75 | 1 | 0 | |
|
South Harbor Park Southold (t) |
50 | 0 | 0 | |
|
Kingdom Hall of Jehovah Witnesses |
500 | 0 | 0 | |
|
Cedar Beach Sportfishing Educ. Center Babylon (t) |
200 | 0 | 0 | |
|
Atlantic Golf Club Southampton (t) |
100 | 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 | |
|
Cedar Beach (golf Course/concession) Babylon (t) |
500 | 0 | 0 | |
|
Overlook Beach Babylon (t) |
450 | 0 | 0 | |
|
Pridwin Hotel Shelter Island (t) |
100 | 0 | 0 | |
|
Wolffer Estate Vineyard Southampton (t) |
50 | 0 | 0 |
About this data
Water systems are matched to Suffolk County, nearest to Moriches 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.