PlainWater
Counties → Connecticut

Windham County, Connecticut

Water Systems
255
Population Served
63,884
Total Violations
21,628
2,864 health-based
PFAS Detected
3
of 3 tested

Violation Analysis

92.2%
Systems with Violations
84.8
Avg Violations per System
13.2%
Health-Based Violations

Water Source Types

GW
48 systems (19%)
SW
2 systems (1%)

PFAS Contamination

3
Systems Tested
3
PFAS Detected
100.0%
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

Windham Connecticut water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (50)

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
Windham Water Works 21,214 37 Detected
Putnam Water Pollution Control Authority 7,300 453 Detected
Ctwc - Crystal System 6,378 305 Detected
Ctwc - Gallup System 2,538 46 -
Ctwc - Plainfield System 1,713 23 -
Killingly High School & Agricultural Ctr 1,400 128 -
Woodstock Academy 1,125 199 -
Ctwc - Thompson System 1,070 77 -
Frito-Lay 903 41 -
Woodstock Elementary School 636 13 -
Woodstock Academy South Campus 620 158 -
Woodstock Middle School 511 26 -
Pomfret Community School 500 211 -
Parish Hill High School 487 22 -
North Windham Elementary School 485 27 -
Ashford School 475 37 -
Pomfret School 400 45 -
Canterbury Elementary School 350 77 -
Camp Woodstock - Upper Main Camp 346 10 -
Hole in the Wall Gang Camp-Main System#1 335 23 -
Ctwc - Ashford Park Division 334 31 -
Camp Woodstock - New Dining Well 322 22 -
Camp Connri 319 76 -
Wyndham Park Apartments 312 44 -
Dr. Helen Baldwin School 310 153 -
Sterling Water System 308 99 -
The Rectory School 300 195 -
Chaplin Elementary School 280 88 -
Whitcraft LLC 272 322 -
Moosup Garden Apartments 270 66 -
Marianapolis Prep School - Admin/School 266 96 -
Matulaitis Nursing Home 254 28 -
Rogers Corp - Rogers Well 250 57 -
Eastford Elementary School 225 13 -
Hampton Elementary School 220 50 -
Peake Brook LLC 208 51 -
Quinebaug Mobile Home Park 205 98 -
Scotland Elementary School 200 227 -
Woodstock Meadows Condominium Assn. 180 70 -
Linemaster Switch Corp 178 149 -
Tri-State Baptist Church 157 22 -
Campbell Heights Apartments 152 71 -
New England Laborers Academy - Main Sys 151 28 -
Evangelical Christian Center -Rec Center 150 24 -
Solair Recreational League - Lower Ridge 150 410 -
Inn at Woodstock Hill 145 34 -
Perry Hill Estates Apartments Inc. 144 230 -
Ashford Hills Apartments 136 371 -
Douglas Manor 135 122 -
Birch Hills Condominiums 132 131 -

Other Counties in Connecticut

Hartford County
219 systems · 836,032 served · 20,244 violations
Fairfield County
336 systems · 779,265 served · 42,084 violations
New Haven County
212 systems · 723,250 served · 17,543 violations
New London County
396 systems · 209,068 served · 34,737 violations
Litchfield County
345 systems · 117,396 served · 27,780 violations
Middlesex County
276 systems · 97,390 served · 25,593 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Windham County? ▼
Windham County has 21,628 total drinking water violations across 255 water systems, of which 2,864 are health-based violations. 92.2% of systems have at least one violation.
How many people get water from Windham County systems? ▼
Water systems in Windham County serve approximately 63,884 people through 255 public water systems.
Has PFAS been detected in Windham County water? ▼
Of 3 water systems tested for PFAS in Windham County, 3 had PFAS detected (100.0% detection rate).
What types of water sources supply Windham County? ▼
Water systems in Windham County use GW (48 systems), SW (2 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. 13.2% of Windham 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.