Water quality for ZIP code 10504
ZIP 10504 covers Armonk 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 |
|---|---|---|---|---|
| North Castle Water District #5 North Castle (t) |
225 | 0 | 0.9 mi | |
| Saint Nersess Armenian Seminary North Castle (t) |
32 | 0 | 1.0 mi | |
| North Castle Water District #2 North Castle (t) |
1,200 | 0 | 2.0 mi | |
| Old Farm Hill Water District Mount Pleasant (t) |
1,768 | 0 | 2.8 mi | |
| Pocantico Hills Water District Mount Pleasant (t) |
329 | 0 | 3.5 mi | |
| Pleasantville Water District Mount Pleasant (t) |
9,550 | 1 | 3.9 mi | |
| Kensico Water District Mount Pleasant (t) |
17,917 | 0 | 4.2 mi | |
| 796 Bedford Road Apartments Bedford (t) |
40 | 0 | 4.8 mi | |
| New Castle/stanwood W.d. New Castle (t) |
17,116 | 0 | 5.1 mi | |
| Mount Kisco Water Department Mount Kisco (v) |
11,187 | 1 | 5.2 mi | |
| North Castle Water District #1 North Castle (t) |
2,500 | 2 | 5.5 mi | |
| Pace University Mount Pleasant (t) |
2,753 | 1 | 5.7 mi | |
| Bear Ridge Lake Water District Mount Pleasant (t) |
518 | 0 | 5.7 mi | |
| Applehill Farm Water District Mount Pleasant (t) |
209 | 0 | 5.7 mi | |
| Pleasant Ridge Water District Mount Pleasant (t) |
95 | 0 | 5.7 mi | |
| Meadowbrook Water District Mount Pleasant (t) |
91 | 0 | 5.7 mi | |
| Mill River Water District Mount Pleasant (t) |
74 | 0 | 5.7 mi | |
| Pleasantville Road Water District Mount Pleasant (t) |
56 | 0 | 5.7 mi | |
| Pleasantville Extension #1 Mount Pleasant (t) |
49 | 0 | 5.7 mi | |
| Bedford Golf and Tennis Club Bedford (t) |
44 | 6 | 5.8 mi | |
| Westchester County WD #3 Greenburgh (t) |
6,000 | 1 | 6.1 mi | |
| The Farms Water District Bedford (t) |
300 | 0 | 6.6 mi | |
| Yeshiva Farm Settlement New Castle (t) |
300 | 2 | 6.7 mi | |
| Briarcliff Manor Village Briarcliff Manor (v) |
9,190 | 0 | 6.7 mi | |
| Ramleh Water Works Corp. Inc. Mount Kisco (v) |
80 | 0 | 7.0 mi |
Non-community systems in Westchester County (181: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
1 Byram Brook Pl. North Castle (t) |
50 | 1 | 0 | |
|
2 Byram Brook Pl. North Castle (t) |
50 | 1 | 0 | |
|
Breezemont Day Camp North Castle (t) |
550 | 0 | 0 | |
|
Church of St. Patrick North Castle (t) |
200 | 0 | 0 | |
|
Armonk Fire District #2 North Castle (t) |
60 | 2 | 0 | |
|
Moderne Barn North Castle (t) |
101 | 0 | 0 | |
|
Armonk Alliance Church North Castle (t) |
208 | 0 | 0 | |
|
North Castle Pool &tennis Club North Castle (t) |
400 | 0 | 0 | |
|
North Castle Water District #8 North Castle (t) |
101 | 0 | 0 | |
|
28 Kaysal Court Office Bldg. North Castle (t) |
50 | 1 | 0 | |
|
Nicks Corner Market/pirmar Food Corp. North Castle (t) |
25 | 1 | 0 | |
|
Byram Hills High School North Castle (t) |
973 | 0 | 0 | |
|
Congregation Bnai Israel North Castle (t) |
30 | 0 | 0 | |
|
Armonk Tennis Club North Castle (t) |
200 | 0 | 0 | |
|
Swiss RE of America |
800 | 1 | 0 | |
|
Citigroup Exec. Planning Center |
40 | 3 | 0 | |
|
Grand Slam Banksville North Castle (t) |
100 | 1 | 0 | |
|
LA Cremaillere North Castle (t) |
100 | 1 | 0 | |
|
Finch Country Store |
25 | 1 | 0 | |
|
Cranberry Lake North Castle (t) |
250 | 1 | 0 | |
|
Fox Lane High & Middle Schools Mount Kisco (v) |
3,000 | 0 | 0 | |
|
Bedford Rest Area Nys RT 684 Bedford (t) |
1,000 | 2 | 0 | |
|
Northern Westchester 103-105 Bedford (t) |
160 | 0 | 0 | |
|
Chestnut Ridge Racquet Club Bedford (t) |
220 | 1 | 0 | |
|
Unitarian Universalist of N. West Bedford (t) |
50 | 1 | 0 | |
|
Chabad of Bedford Bedford (t) |
120 | 1 | 0 | |
|
Temple Shaaray Tefila Bedford (t) |
75 | 0 | 0 | |
|
325 West Patent Road Mount Kisco (v) |
365 | 0 | 0 | |
|
Bedford Village Plaza Bedford (t) |
100 | 1 | 0 | |
|
Edith Macy Camp of Tomorrow Ossining (t) |
100 | 0 | 0 | |
|
West Patent Elementary School Bedford (t) |
400 | 0 | 0 | |
|
Rippowam Cisqua School Bedford Bedford (t) |
425 | 1 | 0 | |
|
Travelers Restaurant Yorktown (t) |
150 | 1 | 0 | |
|
Bedford Community Church Bedford (t) |
250 | 0 | 0 | |
|
Saint Matthews Episcopal Church Bedford (t) |
100 | 0 | 0 | |
|
Glen Arbor Golf Club Bedford (t) |
101 | 0 | 0 | |
|
Bedford Post Restaurant Bedford (t) |
100 | 0 | 0 | |
|
Country Childrens Center Yorktown Yorktown (t) |
79 | 1 | 0 | |
|
Pound Ridge Golf Club Pound Ridge (t) |
101 | 0 | 0 | |
|
Nadines Restaurant Yorktown (t) |
80 | 1 | 0 | |
|
Caramoor Center for Music Art Bedford (t) |
50 | 0 | 0 | |
|
Church of Jesus Christ Lds Ossining (t) |
300 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Wit Ossining (t) |
125 | 1 | 0 | |
|
74 Westchester Pound Ridge (t) |
101 | 0 | 0 | |
|
Pound Ridge Plaza Pound Ridge (t) |
45 | 0 | 0 | |
|
Bonne Building Pound Ridge (t) |
40 | 0 | 0 | |
|
Pound Ridge Town House Pound Ridge (t) |
75 | 0 | 0 | |
|
Community Church at Pound Ridge Pound Ridge (t) |
80 | 0 | 0 | |
|
Pound Ridge Elementary School Pound Ridge (t) |
300 | 0 | 0 | |
|
Inn at Pound Ridge Pound Ridge (t) |
300 | 0 | 0 |
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.