PlainWater
Counties → New York

Ulster County, New York

Water Systems
445
Population Served
132,066
Total Violations
40,480
764 health-based
PFAS Detected
2
of 10 tested

Violation Analysis

96.2%
Systems with Violations
91.0
Avg Violations per System
1.9%
Health-Based Violations

Water Source Types

GW
31 systems (7%)
SW
19 systems (4%)

PFAS Contamination

10
Systems Tested
2
PFAS Detected
20.0%
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

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

No violations on record (3) One or more violations (47)

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
Kingston (City) Water District 24,000 61 Detected
New Paltz (Village) Water Dist 7,523 121 Clean
Ulster Water District 5,500 67 Clean
Port Ewen Water District 4,500 68 Clean
Ellenville (Village) Water Dis 4,300 235 Clean
Saugerties (Village) Water Dis 4,200 168 Clean
Glasco Water District 4,071 60 Clean
Highland Water District 4,000 45 Clean
Marlborough Water District 3,248 86 -
Eastern/Ulster Correctional Fa 2,578 84 -
Woodstock Water District 2,400 11 -
Hurley Water Co 2,200 9 -
Rosendale Water District 2,200 278 -
Watchtower Farms I 1,800 6 -
Greenfield Resort 1,750 142 -
Golden Hill Water District 1,600 9 -
Wallkill Water District 1,500 106 -
Onteora High School 1,300 170 -
Wallkill/Shawangunk Correction 1,200 294 Clean
Ulster County Community Col 997 181 -
Lake Mohonk Mountain House 880 110 -
New Paltz (Town) Water Distric 810 16 -
Rondout Valley Middle School 777 37 -
Camp Rav Tov-Napanoch 750 89 -
Forest Park #1 750 147 -
Minnewaska State Park Visitor Center 747 0 -
Highland High School 689 442 -
Frost Valley YMCA 688 137 -
Jellystone Park at Birchwood Acres 650 20 -
Rondout Valley High School 622 68 -
Kingsvale Water Co 600 14 Clean
Lenape Elementary School 588 70 -
Plattekill Elementary School 550 483 -
Camp Rav Tov-Dairyland 550 86 -
Hudson Valley Water Co #1 525 41 -
Camp Bnos Belz 500 70 -
Camp Rav Tov-Kerhonkson 500 83 -
Wawarsing WD 500 0 -
Kerhonkson Water District 495 439 -
Machne Rav Tov Cherrytown 495 94 -
Pine Hill Water Company 477 103 -
Nys Office of Children & Family Services 470 25 -
Camp Rav Tov-Ulster Heights 470 77 -
Malden Water District 460 29 -
Aloha Home Acres 452 78 -
Phoenicia Water District 450 176 -
Ken Wilson State Park 450 9 -
High Falls Water District 426 19 -
Rondout Valley Camping Resort 411 93 -
Glenerie Water District 410 0 -

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 Ulster County? ▼
Ulster County has 40,480 total drinking water violations across 445 water systems, of which 764 are health-based violations. 96.2% of systems have at least one violation.
How many people get water from Ulster County systems? ▼
Water systems in Ulster County serve approximately 132,066 people through 445 public water systems.
Has PFAS been detected in Ulster County water? ▼
Of 10 water systems tested for PFAS in Ulster County, 2 had PFAS detected (20.0% detection rate).
What types of water sources supply Ulster County? ▼
Water systems in Ulster County use GW (31 systems), SW (19 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. 1.9% of Ulster 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.