Non-Transient Non-Community Water System · PWS MA2012002

Ashby Elementary School

Pepperell, Massachusetts 01463 - drinking water served from groundwater sources to 237 people, tracked in EPA SDWIS and UCMR5.

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

237
People served: 67
EPA violations: 7
Health-based: Untested
UCMR5 result

The verdict

EPA records 67 drinking-water violations at Ashby Elementary School, 10% of them health-based - above the Massachusetts per-system average.

67
Total EPA violations on record: 10%
Health-based (MCL / treatment failure): 237
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ashby Elementary School

Ashby Elementary School is a local-owned non-transient non-community water system that delivers drinking water to 237 residents in Pepperell, Massachusetts (Middlesex County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 67 total violations for this system , of which 7 (10%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 52 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 7 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, 148 of 263 UCMR5-tested systems have reported PFAS detections (56.3%).

Ashby Elementary School's 67 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

237

Total Violations

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Non-Transient Non-Community
Owner Type: Local
Connections: 1
County: Middlesex
School/Daycare: Yes
MCL Violations: 7
Monitoring Violations: 52
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Coliform (TCR)	MCL	7	2011
Lead and Copper Rule	MR	4	2022
Coliform (TCR)	MR	4	2012
Vinyl chloride	MR	2	2008
CHLOROBENZENE	MR	2	2008
o-Dichlorobenzene	MR	2	2008
cis-1,2-Dichloroethylene	MR	2	2008
Ethylbenzene	MR	2	2008
Toluene	MR	2	2008
Xylenes, Total	MR	2	2008
1,1,2-Trichloroethane	MR	2	2008
1,2,4-Trichlorobenzene	MR	2	2008
Arsenic	MR	2	2008
Carbon tetrachloride	MR	2	2008
1,1-Dichloroethylene	MR	2	2008
Trichloroethylene	MR	2	2008
trans-1,2-Dichloroethylene	MR	2	2008
p-Dichlorobenzene	MR	2	2008
1,2-Dichloropropane	MR	2	2008
1,2-Dichloroethane	MR	2	2008
1,1,1-Trichloroethane	MR	2	2008
DICHLOROMETHANE	MR	2	2008
Benzene	MR	2	2008
Tetrachloroethylene	MR	2	2008
Styrene	MR	2	2008

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 Ashby Elementary School.

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 MA2012002 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 Ashby Elementary School 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
2022	Lead and Copper Rule	MR	4	SDWIS / MA2012002 / 5000
2012	Coliform (TCR)	MR	4	SDWIS / MA2012002 / 3100
2011	Coliform (TCR)	MCL	7	SDWIS / MA2012002 / 3100
2008	Vinyl chloride	MR	2	SDWIS / MA2012002 / 2976
2008	CHLOROBENZENE	MR	2	SDWIS / MA2012002 / 2989
2008	o-Dichlorobenzene	MR	2	SDWIS / MA2012002 / 2968
2008	cis-1,2-Dichloroethylene	MR	2	SDWIS / MA2012002 / 2380
2008	Ethylbenzene	MR	2	SDWIS / MA2012002 / 2992
2008	Toluene	MR	2	SDWIS / MA2012002 / 2991
2008	Xylenes, Total	MR	2	SDWIS / MA2012002 / 2955
2008	1,1,2-Trichloroethane	MR	2	SDWIS / MA2012002 / 2985
2008	1,2,4-Trichlorobenzene	MR	2	SDWIS / MA2012002 / 2378
2008	Arsenic	MR	2	SDWIS / MA2012002 / 1005
2008	Carbon tetrachloride	MR	2	SDWIS / MA2012002 / 2982
2008	1,1-Dichloroethylene	MR	2	SDWIS / MA2012002 / 2977

How Ashby Elementary School Compares

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

Metric	Ashby Elementary School	Massachusetts avg	Federal benchmark
Total violations	67	46.2	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	7	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	237	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 Ashby Elementary School water safe to drink? ▼

Ashby Elementary School (PWS ID: MA2012002) has 67 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 237 people using Groundwater sources.

How many people does Ashby Elementary School serve? ▼

Ashby Elementary School serves 237 people in Pepperell, Massachusetts. It is a Local-owned system using Groundwater water sources with 1 service connections.

What type of violations does Ashby Elementary School have? ▼

Ashby Elementary School has 67 total violations: 7 health-based violations (MCL exceedances or treatment failures), 52 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Ashby Elementary School water? ▼

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

What water source does Ashby Elementary School use? ▼

Ashby Elementary School 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.