Non-Transient Non-Community Water System · PWS MA4334012

Westport School Administration

Westport, Massachusetts 02790 - drinking water served from groundwater sources to 74 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

74
People served: 111
EPA violations: 12
Health-based: Untested
UCMR5 result

The verdict

EPA records 111 drinking-water violations at Westport School Administration, 11% of them health-based - above the Massachusetts per-system average.

111
Total EPA violations on record: 11%
Health-based (MCL / treatment failure): 74
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Westport School Administration

Westport School Administration is a local-owned non-transient non-community water system that delivers drinking water to 74 residents in Westport, Massachusetts (Bristol County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 111 total violations for this system , of which 12 (11%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 94 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 12 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 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, 143 of 263 UCMR5-tested systems have reported PFAS detections (54.4%).

Westport School Administration's 111 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

Total Violations

111

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Non-Transient Non-Community
Owner Type: Local
Connections: 1
County: Bristol
School/Daycare: Yes
MCL Violations: 12
Monitoring Violations: 94
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Coliform (TCR)	MCL	12	2013
Lead and Copper Rule	MR	9	2016
Coliform (TCR)	MR	3	2008
Methoxychlor	MR	2	2001
Toxaphene	MR	2	2001
Diquat	MR	2	2001
Endothall	MR	2	2001
Glyphosate	MR	2	2001
Di(2-ethylhexyl) adipate	MR	2	2001
Simazine	MR	2	2001
Di(2-ethylhexyl) phthalate	MR	2	2001
Picloram	MR	2	2001
Dinoseb	MR	2	2001
Hexachlorocyclopentadiene	MR	2	2001
Carbofuran	MR	2	2001
2,3,7,8-TCDD	MR	2	2001
Heptachlor epoxide	MR	2	2001
2,4,5-TP	MR	2	2001
HEXACHLOROBENZENE	MR	2	2001
Total Polychlorinated Biphenyls (PCB)	MR	2	2001
1,2-DIBROMO-3-CHLOROPROPANE	MR	2	2001
ETHYLENE DIBROMIDE	MR	2	2001
Coliform (TCR)	Other	2	2006
Chlordane	MR	2	2001
2,4-D	MR	2	2001
Heptachlor	MR	2	2001
BHC-GAMMA	MR	2	2001
LASSO	MR	2	2001
Benzo(a)pyrene	MR	2	2001
Pentachlorophenol	MR	2	2001

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 Westport School Administration.

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 MA4334012 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 Westport School Administration 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
2016	Lead and Copper Rule	MR	9	SDWIS / MA4334012 / 5000
2013	Coliform (TCR)	MCL	12	SDWIS / MA4334012 / 3100
2008	Coliform (TCR)	MR	3	SDWIS / MA4334012 / 3100
2006	Coliform (TCR)	Other	2	SDWIS / MA4334012 / 3100
2001	Methoxychlor	MR	2	SDWIS / MA4334012 / 2015
2001	Toxaphene	MR	2	SDWIS / MA4334012 / 2020
2001	Diquat	MR	2	SDWIS / MA4334012 / 2032
2001	Endothall	MR	2	SDWIS / MA4334012 / 2033
2001	Glyphosate	MR	2	SDWIS / MA4334012 / 2034
2001	Di(2-ethylhexyl) adipate	MR	2	SDWIS / MA4334012 / 2035
2001	Simazine	MR	2	SDWIS / MA4334012 / 2037
2001	Di(2-ethylhexyl) phthalate	MR	2	SDWIS / MA4334012 / 2039
2001	Picloram	MR	2	SDWIS / MA4334012 / 2040
2001	Dinoseb	MR	2	SDWIS / MA4334012 / 2041
2001	Hexachlorocyclopentadiene	MR	2	SDWIS / MA4334012 / 2042

How Westport School Administration Compares

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

Metric	Westport School Administration	Massachusetts avg	Federal benchmark
Total violations	111	46.2	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	12	4.6	Indicates a contaminant exceeded a federal MCL
PFAS detection	None	54.4%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	74	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 Westport School Administration water safe to drink? ▼

Westport School Administration (PWS ID: MA4334012) has 111 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 74 people using Groundwater sources.

How many people does Westport School Administration serve? ▼

Westport School Administration serves 74 people in Westport, Massachusetts. It is a Local-owned system using Groundwater water sources with 1 service connections.

What type of violations does Westport School Administration have? ▼

Westport School Administration has 111 total violations: 12 health-based violations (MCL exceedances or treatment failures), 94 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Westport School Administration water? ▼

No PFAS testing data is available for Westport School Administration under the EPA's UCMR5 monitoring program.

What water source does Westport School Administration use? ▼

Westport School Administration uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.

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.