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Community Water System · PWS CT1340032

Johnson Memorial Hospital, Inc

Stafford Springs, Connecticut 06074 - drinking water served from groundwater sources to 250 people, tracked in EPA SDWIS and UCMR5.

250
People served
172
EPA violations
55
Health-based
Untested
UCMR5 result

The verdict

EPA records 172 drinking-water violations at Johnson Memorial Hospital, Inc, 32% of them health-based - above the Connecticut per-system average.

172
Total EPA violations on record
32%
Health-based (MCL / treatment failure)
250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Johnson Memorial Hospital, Inc

Johnson Memorial Hospital, Inc is a private-owned community water system that delivers drinking water to 250 residents in Stafford Springs, Connecticut (Tolland County) through 8 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 172 total violations for this system , of which 55 (32%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 102 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Combined Uranium, recorded in 50 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Connecticut, EPA tracks 2,332 public water systems serving 2,886,005 people, with 206,662 cumulative violations and 21,779 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 88.6 violations. Statewide, 40 of 63 UCMR5-tested systems have reported PFAS detections (63.5%).

Johnson Memorial Hospital, Inc's 172 violations sit above the Connecticut average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
250
Total Violations
172
Health-Based Violations
55
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
8
County
Tolland
School/Daycare
No
MCL Violations
54
Monitoring Violations
102
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Uranium MCL 50 2009
Chlorine MR 16 2022
Lead and Copper Rule MR 7 1995
Combined Uranium MR 7 2018
Consumer Confidence Rule Other 7 2019
Combined Radium (-226 and -228) MR 6 2018
Gross Alpha, Excl. Radon and U MR 6 2018
Total Haloacetic Acids (HAA5) MR 4 2012
Revised Total Coliform Rule RPT 4 2018
Barium MR 4 2016
Cadmium MR 4 2016
Mercury MR 4 2016
Nickel MR 4 2016
Beryllium, Total MR 4 2016
Coliform (TCR) MCL 4 1991
Antimony, Total MR 4 2016
Arsenic MR 4 2016
Revised Total Coliform Rule MON 4 2018
Selenium MR 4 2016
Thallium, Total MR 4 2016
Chromium MR 4 2016
CYANIDE MR 4 2016
TTHM MR 4 2012
Fluoride MR 4 2016
LEAD AND COPPER RULE REVISIONS RPT 1 2024
LEAD AND COPPER RULE REVISIONS TT 1 2024

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Johnson Memorial Hospital, Inc.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CT1340032 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Connecticut Drinking Water Authority

Connecticut's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find CT regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CT1340032 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / CT1340032 / 5200
2022 Chlorine MR 16 SDWIS / CT1340032 / 0999
2019 Consumer Confidence Rule Other 7 SDWIS / CT1340032 / 7000
2018 Combined Uranium MR 7 SDWIS / CT1340032 / 4006
2018 Combined Radium (-226 and -228) MR 6 SDWIS / CT1340032 / 4010
2018 Gross Alpha, Excl. Radon and U MR 6 SDWIS / CT1340032 / 4000
2018 Revised Total Coliform Rule RPT 4 SDWIS / CT1340032 / 8000
2018 Revised Total Coliform Rule MON 4 SDWIS / CT1340032 / 8000
2016 Barium MR 4 SDWIS / CT1340032 / 1010
2016 Cadmium MR 4 SDWIS / CT1340032 / 1015
2016 Mercury MR 4 SDWIS / CT1340032 / 1035
2016 Nickel MR 4 SDWIS / CT1340032 / 1036
2016 Beryllium, Total MR 4 SDWIS / CT1340032 / 1075
2016 Antimony, Total MR 4 SDWIS / CT1340032 / 1074

How Johnson Memorial Hospital, Inc Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Johnson Memorial Hospital, Inc Connecticut avg Federal benchmark
Total violations 172 88.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 55 9.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 63.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 250 1,238 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,332 regulated public water systems in Connecticut.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Johnson Memorial Hospital, Inc water safe to drink? ▼
Johnson Memorial Hospital, Inc (PWS ID: CT1340032) has 172 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does Johnson Memorial Hospital, Inc serve? ▼
Johnson Memorial Hospital, Inc serves 250 people in Stafford Springs, Connecticut. It is a Private-owned system using Groundwater water sources with 8 service connections.
What type of violations does Johnson Memorial Hospital, Inc have? ▼
Johnson Memorial Hospital, Inc has 172 total violations: 55 health-based violations (MCL exceedances or treatment failures), 102 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Johnson Memorial Hospital, Inc water? ▼
No PFAS testing data is available for Johnson Memorial Hospital, Inc under the EPA's UCMR5 monitoring program.
What water source does Johnson Memorial Hospital, Inc use? ▼
Johnson Memorial Hospital, Inc uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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 system's figures are rendered directly from 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.