PlainWater
Counties → Connecticut

Hartford County, Connecticut

Water Systems
219
Population Served
836,032
Total Violations
20,244
1,308 health-based
PFAS Detected
11
of 14 tested

Violation Analysis

97.3%
Systems with Violations
92.4
Avg Violations per System
6.5%
Health-Based Violations

Water Source Types

GW
34 systems (16%)
SW
16 systems (7%)

PFAS Contamination

14
Systems Tested
11
PFAS Detected
78.6%
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

Hartford 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
Metropolitan District Commission 390,887 3 Clean
Ctwc - Northern Reg-Western System 101,313 406 Detected
New Britain Water Department 73,534 34 Clean
Bristol Water Department 52,079 269 Detected
Manchester Water Department 51,198 31 Detected
Southington Water Department 43,069 1,028 Detected
Hazardville Water Company 18,544 119 Detected
Aquarion-Plainville Regional 18,231 63 Detected
Ctwc - Unionville System 14,693 27 Detected
Aquarion-Simsbury Regional 14,691 200 Detected
Avon Water Co 11,590 476 Detected
Kensington Fire District 7,553 96 Clean
Ctwc - Naugatuck Reg-Collinsville Sys 6,324 66 Detected
Berlin Water Control Commission 5,128 677 Detected
Worthington Fire District 2,875 57 -
Connecticut Correctional Institute 2,385 460 -
Salmon Brook District Water Dept 2,151 127 -
Tariffville Fire District Water Dept 1,477 112 -
Aquarion-Marlborough 1,348 633 -
Talcott Mountain S.p. 793 22 -
Lake Garda School 715 27 -
Penwood State Park/Main Park Well 700 13 -
Cherry Brook School 615 260 -
Aquarion-Suffield 595 121 -
Elisabeth M. Bennet Academy 536 72 -
Eastbury School 523 98 -
Ctwc - Redwood Farms Division 424 24 -
Wells Road Intermediate School 405 126 -
The Masters School 372 173 -
Aquarion-North Mountain 370 4 -
Turkey Hill of East Granby, LLC 360 153 -
Gqc Well Commission 360 340 -
Kelly Lane Primary School 357 21 -
Newington VA Medical Center-Building 2E 335 6 -
Ethel Walker School 325 567 -
Hartland Elem Sch & Town Bldgs 300 392 -
Apple Rehab 238 12 -
Ctwc - Chimney Hill 227 2 -
Manchester Cong. of Jehovahs Witnesses 222 8 -
Cannabis Retailer at 195 Albany Turnpike 214 7 -
Old Newgate Ridge Water Company Inc 208 166 -
Winding Trails Recreation Assn - Upper 207 17 -
Winding Trails Recreation Assn - Lower 207 4 -
Shaker Heights Water Company 172 41 -
Ctwc - Sachem Village Condo 166 9 -
Marlborough Health Care Center, Inc 165 142 -
Chelsea Common Condominium Association 126 27 -
Ccarc Inc. 125 19 -
Cadence Academy 112 738 -
Ctwc - Marlborough Gardens 110 38 -

Other Counties in Connecticut

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
Windham County
255 systems · 63,884 served · 21,628 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Hartford County? ▼
Hartford County has 20,244 total drinking water violations across 219 water systems, of which 1,308 are health-based violations. 97.3% of systems have at least one violation.
How many people get water from Hartford County systems? ▼
Water systems in Hartford County serve approximately 836,032 people through 219 public water systems.
Has PFAS been detected in Hartford County water? ▼
Of 14 water systems tested for PFAS in Hartford County, 11 had PFAS detected (78.6% detection rate).
What types of water sources supply Hartford County? ▼
Water systems in Hartford County use GW (34 systems), SW (16 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. 6.5% of Hartford 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.