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Community Water System · PWS MA3295001

Tewksbury Hospital

Tewksbury, Massachusetts 01876 - drinking water served from groundwater sources to 2,500 people, tracked in EPA SDWIS and UCMR5.

2,500
People served
215
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 215 drinking-water violations at Tewksbury Hospital - above the Massachusetts per-system average.

215
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
2,500
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Tewksbury Hospital

Tewksbury Hospital is a state-owned community water system that delivers drinking water to 2,500 residents in Tewksbury, Massachusetts (Middlesex County) through 35 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 215 total violations for this system , of which 1 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 198 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Carbon tetrachloride, recorded in 6 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Massachusetts, EPA tracks 1,599 public water systems serving 10,332,845 people, with 73,886 cumulative violations and 7,389 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 46.2 violations. Statewide, 148 of 263 UCMR5-tested systems have reported PFAS detections (56.3%).

Tewksbury Hospital's 215 violations sit above the Massachusetts 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
2,500
Total Violations
215
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
State
Connections
35
County
Middlesex
School/Daycare
No
MCL Violations
1
Monitoring Violations
198
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Carbon tetrachloride MR 6 2013
1,1-Dichloroethylene MR 6 2013
1,2-Dichloroethane MR 6 2013
Trichloroethylene MR 6 2013
1,1,1-Trichloroethane MR 6 2013
Vinyl chloride MR 6 2013
CHLOROBENZENE MR 6 2013
o-Dichlorobenzene MR 6 2013
trans-1,2-Dichloroethylene MR 6 2013
cis-1,2-Dichloroethylene MR 6 2013
1,2-Dichloropropane MR 6 2013
Styrene MR 6 2013
Tetrachloroethylene MR 6 2013
Toluene MR 6 2013
p-Dichlorobenzene MR 6 2013
Xylenes, Total MR 6 2013
1,1,2-Trichloroethane MR 6 2013
1,2,4-Trichlorobenzene MR 6 2013
Ethylbenzene MR 6 2013
DICHLOROMETHANE MR 6 2013
Benzene MR 6 2013
Coliform (TCR) MR 4 2011
Nitrate MR 3 2023
Consumer Confidence Rule Other 3 2017
LASSO MR 2 2013
Chlordane MR 2 2013
Heptachlor MR 2 2013
Pentachlorophenol MR 2 2013
Toxaphene MR 2 2013
Total Polychlorinated Biphenyls (PCB) MR 2 2013

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 Tewksbury Hospital.

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 MA3295001 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Massachusetts Drinking Water Authority

MassDEP, Drinking Water Program is the primacy agency that licenses and inspects Tewksbury Hospital under EPA-delegated authority.

Open MA regulator portal

Source: MassDEP, Drinking Water Program

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
2023 Nitrate MR 3 SDWIS / MA3295001 / 1040
2022 Nitrite MR 2 SDWIS / MA3295001 / 1041
2017 Consumer Confidence Rule Other 3 SDWIS / MA3295001 / 7000
2016 Lead and Copper Rule MR 2 SDWIS / MA3295001 / 5000
2013 Carbon tetrachloride MR 6 SDWIS / MA3295001 / 2982
2013 1,1-Dichloroethylene MR 6 SDWIS / MA3295001 / 2977
2013 1,2-Dichloroethane MR 6 SDWIS / MA3295001 / 2980
2013 Trichloroethylene MR 6 SDWIS / MA3295001 / 2984
2013 1,1,1-Trichloroethane MR 6 SDWIS / MA3295001 / 2981
2013 Vinyl chloride MR 6 SDWIS / MA3295001 / 2976
2013 CHLOROBENZENE MR 6 SDWIS / MA3295001 / 2989
2013 o-Dichlorobenzene MR 6 SDWIS / MA3295001 / 2968
2013 trans-1,2-Dichloroethylene MR 6 SDWIS / MA3295001 / 2979
2013 cis-1,2-Dichloroethylene MR 6 SDWIS / MA3295001 / 2380
2013 1,2-Dichloropropane MR 6 SDWIS / MA3295001 / 2983

How Tewksbury Hospital Compares

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

Metric Tewksbury Hospital Massachusetts avg Federal benchmark
Total violations 215 46.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 4.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 56.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,500 6,462 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,599 regulated public water systems in Massachusetts.

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 Tewksbury Hospital water safe to drink? ▼
Tewksbury Hospital (PWS ID: MA3295001) has 215 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,500 people using Groundwater sources.
How many people does Tewksbury Hospital serve? ▼
Tewksbury Hospital serves 2,500 people in Tewksbury, Massachusetts. It is a State-owned system using Groundwater water sources with 35 service connections.
What type of violations does Tewksbury Hospital have? ▼
Tewksbury Hospital has 215 total violations: 1 health-based violations (MCL exceedances or treatment failures), 198 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Tewksbury Hospital water? ▼
No PFAS testing data is available for Tewksbury Hospital under the EPA's UCMR5 monitoring program.
What water source does Tewksbury Hospital use? ▼
Tewksbury Hospital 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.