Water quality for ZIP code 10523
ZIP 10523 covers Elmsford in Westchester County, New York, one of 74 ZIP codes in the county. 273 active public water systems serve the county; 93 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 Westchester County
91 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Westchester County WD #3 Greenburgh (t) |
6,000 | 1 | 1.8 mi | |
| Greenburgh Consolidated WD #1 Greenburgh (t) |
43,312 | 0 | 1.8 mi | |
| Tarrytown Water Supply Tarrytown (v) |
11,000 | 1 | 2.0 mi | |
| Irvington Water Supply Irvington (v) |
6,631 | 0 | 2.7 mi | |
| North Castle Water District #1 North Castle (t) |
2,500 | 2 | 2.7 mi | |
| Sleepy Hollow (village) Mount Pleasant (t) |
9,870 | 0 | 3.2 mi | |
| Bear Ridge Lake Water District Mount Pleasant (t) |
518 | 0 | 3.7 mi | |
| Applehill Farm Water District Mount Pleasant (t) |
209 | 0 | 3.7 mi | |
| Pleasant Ridge Water District Mount Pleasant (t) |
95 | 0 | 3.7 mi | |
| Meadowbrook Water District Mount Pleasant (t) |
91 | 0 | 3.7 mi | |
| Mill River Water District Mount Pleasant (t) |
74 | 0 | 3.7 mi | |
| Pleasantville Road Water District Mount Pleasant (t) |
56 | 0 | 3.7 mi | |
| Pleasantville Extension #1 Mount Pleasant (t) |
49 | 0 | 3.7 mi | |
| Kensico Water District Mount Pleasant (t) |
17,917 | 0 | 3.8 mi | |
| White Plains City White Plains (c) |
59,559 | 0 | 4.4 mi | |
| Pace University Mount Pleasant (t) |
2,753 | 1 | 4.4 mi | |
| Scarsdale Water Department |
21,649 | 1 | 5.3 mi | |
| Pleasantville Water District Mount Pleasant (t) |
9,550 | 1 | 5.7 mi | |
| Briarcliff Manor Village Briarcliff Manor (v) |
9,190 | 0 | 5.7 mi | |
| Old Farm Hill Water District Mount Pleasant (t) |
1,768 | 0 | 6.4 mi | |
| Westchester Joint Water Works |
59,629 | 1 | 6.4 mi | |
| North Castle Water District #5 North Castle (t) |
225 | 0 | 6.7 mi | |
| North Castle Water District #4 North Castle (t) |
1,225 | 1 | 7.3 mi | |
| Veolia Water New York, Inc. Rd-1 Ardsley (v), Bronxville (v), Dobbs Ferry (v) and 6 more |
146,732 | 1 | 7.4 mi | |
| Ossining Water Department Ossining (t) |
30,000 | 0 | 7.9 mi |
Non-community systems in Westchester County (181: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Westchester 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 county subdivision files or 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.