PlainWater
Counties → New York

Seneca County, New York

Water Systems
87
Population Served
27,760
Total Violations
4,623
159 health-based
PFAS Detected
1
of 2 tested

Violation Analysis

92.0%
Systems with Violations
53.1
Avg Violations per System
3.4%
Health-Based Violations

Water Source Types

SW
29 systems (33%)
GW
20 systems (23%)
Unknown
1 system (1%)

PFAS Contamination

2
Systems Tested
1
PFAS Detected
50.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Seneca New York water systems by violation status, EPA SDWIS records.

No violations on record (4) One or more violations (46)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Seneca Falls 9,400 110 Clean
Waterloo Village 7,000 110 Clean
Seneca County Water District #1 1,820 36 -
Border City Water District 1,600 33 -
Ovid Village 990 313 -
Interlaken Village 650 27 -
Lodi Point State Park 500 13 -
Cayuga Lake Water District # 3 432 16 -
Junius Water District #1 400 22 -
Willard Water District 372 24 -
Seneca Lake Water District #1 333 18 -
Town of Waterloo Water District 250 21 -
Fayette Water District #2 228 10 -
Romulus Water District 213 8 -
Ginny Lee Cafe 200 40 -
Burgess Road Water District 200 34 -
Seneca Ridge Events Center 200 0 -
Maple Grove Mennonite School 150 0 -
Varick Water District #4 150 11 -
Tyre Water District #1 150 7 -
Sunset on Seneca Campground 120 22 -
Simply Homemade 100 14 -
Fayette Water District #5 100 11 -
Fayette Water District #7 100 38 -
Fayette Water District #1 99 17 -
Cayuga Wine Trail Campground 80 69 -
Rivers Crossing Campground 75 32 -
Varick Water District 63 5 -
Fingerlakes Mobile Home Park 50 193 -
Willard Drug Treatment Center 50 14 -
Varick Water District #3 50 4 -
Fayette Mennonite School 50 92 -
Kidders Landing R.V. Park 50 127 -
Village Soft Serve 50 47 -
Finger Lakes Cider House 50 8 -
Three Brothers Winery 50 32 -
Junius Water District #3 50 5 -
Whitmer Farm 50 25 -
Fayette Water District #8 50 0 -
The Spotted Sandpiper 40 106 -
Lakeview Mennonite School 35 209 -
Omalleys Cabin on the Lake 30 196 -
South Pre-Emption Water District 30 0 -
Fingerlakes Cabins and Campground 25 80 -
Cedarwood 25 84 -
Rte 96 Diner 25 214 -
Junius Ponds Cabins/Campground 25 45 -
Bubblery 25 16 -
Montezuma Winery 25 12 -
Interlaken Sportsman Club 25 12 -

Other Counties in New York

Richmond County
1 systems · 8,271,000 served · 47 violations
Suffolk County
152 systems · 1,387,905 served · 3,402 violations
Nassau County
44 systems · 1,387,489 served · 7,471 violations
Westchester County
274 systems · 992,853 served · 15,832 violations
Erie County
108 systems · 955,615 served · 7,606 violations
Onondaga County
88 systems · 615,889 served · 2,561 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Seneca County? ▼
Seneca County has 4,623 total drinking water violations across 87 water systems, of which 159 are health-based violations. 92.0% of systems have at least one violation.
How many people get water from Seneca County systems? ▼
Water systems in Seneca County serve approximately 27,760 people through 87 public water systems.
Has PFAS been detected in Seneca County water? ▼
Of 2 water systems tested for PFAS in Seneca County, 1 had PFAS detected (50.0% detection rate).
What types of water sources supply Seneca County? ▼
Water systems in Seneca County use SW (29 systems), GW (20 systems), Unknown (1 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 3.4% of Seneca County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.