Water quality in Lake Success, New York
Lake Success is in Nassau County. 44 active public water systems serve the county; 8 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 Nassau County
39 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Garden City Park WD New Hyde Park (v) |
18,000 | 0 | 2.3 mi | |
| Plandome (v) Plandome (v) |
1,600 | 0 | 3.0 mi | |
| Williston Park (v) Williston Park (v) |
7,287 | 0 | 3.4 mi | |
| Albertson WD North Hempstead (t) |
13,500 | 1 | 3.4 mi | |
| WA of Western Nassau Hempstead (t), North Hempstead (t) |
120,000 | 0 | 3.8 mi | |
| Mineola (v) Mineola (v) |
20,600 | 0 | 3.9 mi | |
| East Williston (v) East Williston (v) |
2,556 | 0 | 4.1 mi | |
| Franklin Square WD Hempstead (t), Stewart Manor (v) |
20,000 | 0 | 4.2 mi | |
| Roslyn WD Roslyn (v) |
17,000 | 0 | 4.3 mi | |
| Garden City (v) Garden City (v) |
23,272 | 0 | 4.5 mi | |
| Port Washington WD North Hempstead (t) |
34,000 | 0 | 4.6 mi | |
| West Hempstead WD Hempstead (t) |
32,031 | 1 | 5.1 mi | |
| Carle Place WD North Hempstead (t) |
9,005 | 0 | 5.4 mi | |
| Old Westbury (v) Old Westbury (v) |
4,700 | 1 | 6.1 mi | |
| Cathedral Gardens WD Hempstead (t) |
1,500 | 0 | 6.3 mi | |
| Hempstead (v) Hempstead (v) |
56,000 | 1 | 6.3 mi | |
| Liberty Utilities New York Sea Cliff Sea Cliff (v) |
13,400 | 0 | 6.8 mi | |
| Sands Point (v) North Hempstead (t), Sands Point (v) |
2,900 | 0 | 6.8 mi | |
| Westbury WD North Hempstead (t), Westbury (v) |
20,500 | 0 | 7.1 mi | |
| Rockville Centre (v) Rockville Center (v) |
24,700 | 0 | 7.8 mi | |
| Town of Hempstead Water Department Hempstead (t) |
110,000 | 0 | 8.4 mi | |
| Liberty Utilities New York Lynbrook Hempstead (t), Lynbrook (v) |
220,000 | 1 | 8.5 mi | |
| Glen Cove City Glen Cove (c) |
28,000 | 0 | 8.6 mi | |
| Hicksville WD Oyster Bay (t) |
48,000 | 0 | 9.7 mi | |
| Freeport (v) Freeport (v) |
45,000 | 0 | 10.2 mi |
Non-community systems in Nassau County (4: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Beaver Dam Winter Sports Matinecock (v), Oyster Bay (t) |
35 | 0 | 0 | |
|
Seawanhaka Yacht Club Centre Island (v), Oyster Bay (t) |
60 | 0 | 0 | |
|
Jones Beach State Park Hempstead (t) |
30,799 | 0 | 0 | |
|
Tobay Beach Oyster Bay (t) |
2,410 | 0 | 0 |
About this data
Water systems are matched to Nassau County, nearest to Lake Success 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.