New York
Tompkins County drinking water quality
111 active public water systems serve 102,827 people in Tompkins County. 80 are compliant, 31 had at least one EPA violation in the past three years, 0 are designated serious violators, and 3 carry a health flag.
Needs attention
Community water systems
51 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Cornell University Ithaca (c) |
31,581 | 0 | 0 | |
|
Ithaca City Ithaca (c) |
29,457 | 1 | 0 | |
|
Ithaca Town WD Ithaca (c) |
13,000 | 0 | 0 | |
|
Cayuga Heights Village Ithaca (c) |
3,170 | 0 | 0 | |
|
Lansing (v) Ithaca (c) |
3,100 | 0 | 0 | |
|
Lansing (t) Consolidated WD Lansing (v) |
3,000 | 0 | 0 | |
|
Groton Village Groton (v) |
2,470 | 0 | 0 | |
|
Newfield Wds Newfield (t) |
2,300 | 1 | 0 | |
|
Trumansburg Village Trumansburg (v) |
2,300 | 1 | 0 | |
|
Dryden Village Dryden (v) |
2,000 | 0 | 0 | |
|
Dryden WD Dryden (v) |
725 | 0 | 0 | |
|
Hanshaw Village MHP Dryden (t) |
447 | 0 | 0 | |
|
Ulysses WD #3 |
400 | 0 | 0 | |
|
Ithaca Estates Dryden (t) |
342 | 0 | 0 | |
|
West Danby WD Danby (t) |
265 | 0 | 0 | |
|
Country Acres MHP Dryden (v) |
253 | 1 | 0 | |
|
Little Creek MHP Dryden (t) |
252 | 0 | 0 | |
|
William George Agency Freeville (v) |
250 | 0 | 0 | |
|
Yellow Barn WD Dryden (t) |
250 | 0 | 0 | |
|
Sandy Creek Mobile Home Park Enfield (t) |
215 | 0 | 0 | |
|
Newfield Estates Newfield (t) |
160 | 3 | 2 | |
|
Pleasant View MHP Dryden (t) |
125 | 0 | 0 | |
|
Beaconview MHP Dryden (v) |
110 | 2 | 1 | |
|
Country Gardens Apartments Dryden (t) |
110 | 2 | 0 | |
|
Creekwood Apartments Dryden (t) |
110 | 1 | 0 | |
|
Fall Creek Park Dryden (t) |
90 | 0 | 0 | |
|
Hillview Terrace MHP Danby (t) |
80 | 2 | 1 | |
|
Skyhook Apartments Newfield (t) |
66 | 0 | 0 | |
|
Collegeview North MHP Enfield (t) |
58 | 0 | 0 | |
|
Orchard Apartments Enfield (t) |
56 | 1 | 1 | |
|
Cloverland Park Newfield (t) |
55 | 0 | 0 | |
|
Jeslen Court MHP Groton (t) |
52 | 0 | 0 | |
|
Brook Woods Mobile Manor Lansing (t) |
50 | 0 | 0 | |
|
Maccormick Secure Center Caroline (t) |
50 | 1 | 0 | |
|
Fountain Manor Apartments Caroline (t) |
48 | 1 | 1 | |
|
Lehigh Crossing Apartments Freeville (v) |
48 | 1 | 0 | |
|
Deibler Apartments Dryden (t) |
46 | 0 | 0 | |
|
Brookview Apartments Dryden (t) |
45 | 2 | 0 | |
|
Mott Road Park Dryden (v) |
45 | 0 | 0 | |
|
Jims MHP Newfield (t) |
42 | 3 | 0 | |
|
Mountain View Manor Caroline (t) |
40 | 3 | 1 | |
|
Willow Hill Mobile Court Ulysses (t) |
40 | 4 | 2 | |
|
Bailey Park Danby (t) |
37 | 2 | 0 | |
|
Hillside Apts Dryden (t) |
37 | 1 | 0 | |
|
Sunset Townhouses Enfield (t) |
36 | 0 | 0 | |
|
Boiceville Apartments Caroline (t) |
32 | 1 | 0 | |
|
Stoney Brook Apartments Enfield (t) |
28 | 0 | 0 | |
|
Green Acres MHP Caroline (t) |
26 | 0 | 0 | |
|
Meadowbrook Apartments Lansing (t) |
26 | 1 | 0 | |
|
White Hawk Ecovillage Community |
25 | 0 | 0 |
Non-community systems (60: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (57, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.