New York
Niagara County drinking water quality
21 active public water systems serve 223,670 people in Niagara County. 15 are compliant, 6 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
21 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Niagara Falls Water Board Niagara Falls (c) |
50,193 | 0 | 0 | |
|
North Tonawanda City North Tonawanda (c) |
31,568 | 0 | 0 | |
|
Lockport City Wtp Lockport (c) |
21,165 | 0 | 0 | |
|
Lockport Town Wds Lockport (t) |
21,105 | 0 | 0 | |
|
Wheatfield WD Wheatfield (t) |
18,117 | 0 | 0 | |
|
Lewiston Water Improvementarea Lewiston (v) |
16,257 | 1 | 1 | |
|
Newfane Town Wds Newfane (t) |
9,304 | 0 | 0 | |
|
Niagara Water Improvement Area Niagara (t), Niagara Falls (c) |
8,100 | 0 | 0 | |
|
Royalton Townwide Water Dist. Royalton (t) |
7,710 | 0 | 0 | |
|
Porter Master Improvement Area Porter (t), Youngstown (v) |
6,920 | 0 | 0 | |
|
Pendleton Town WD Pendleton (t) |
6,050 | 2 | 1 | |
|
Wilson Town Water District Wilson (t) |
5,993 | 1 | 0 | |
|
Cambria Water District Cambria (t) |
5,839 | 2 | 0 | |
|
Hartland WD Hartland (t), Royalton (t) |
4,117 | 0 | 0 | |
|
Lewiston Village Lewiston (v) |
2,781 | 0 | 0 | |
|
Somerset Consolidated WD Somerset (t) |
2,723 | 0 | 0 | |
|
Youngstown (v) Youngstown (v) |
2,021 | 0 | 0 | |
|
Middleport Village Middleport (v) |
1,917 | 0 | 0 | |
|
Wilson Village Wilson (v) |
1,213 | 2 | 1 | |
|
Barker Village Barker (v) |
577 | 1 | 1 | |
|
Niagara County Water District Barker (v), Cambria (t), Grand Island (t) and 19 more |
0 | 0 | 0 |
Inactive systems (4, 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.