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Non-Transient Non-Community Water System · PWS MA2286005

Hale Middle School

Bolton, Massachusetts 01740 - drinking water served from groundwater sources to 321 people, tracked in EPA SDWIS and UCMR5.

321
People served
79
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 79 drinking-water violations at Hale Middle School, 15% of them health-based - above the Massachusetts per-system average.

79
Total EPA violations on record
15%
Health-based (MCL / treatment failure)
321
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Hale Middle School

Hale Middle School is a local-owned non-transient non-community water system that delivers drinking water to 321 residents in Bolton, Massachusetts (Middlesex County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 79 total violations for this system , of which 12 (15%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 59 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 6 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%).

Hale Middle School's 79 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
321
Total Violations
79
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Middlesex
School/Daycare
Yes
MCL Violations
6
Monitoring Violations
59
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 6 2015
Lead and Copper Rule TT 6 1994
Nitrate MR 3 2000
Endrin MR 1 1997
BHC-GAMMA MR 1 1997
Methoxychlor MR 1 1997
Dalapon MR 1 1997
Endothall MR 1 1997
Glyphosate MR 1 1997
Di(2-ethylhexyl) adipate MR 1 1997
OXAMYL MR 1 1997
Simazine MR 1 1997
Di(2-ethylhexyl) phthalate MR 1 1997
Aldicarb sulfoxide MR 1 1997
Aldicarb sulfone MR 1 1997
Carbofuran MR 1 1997
Aldicarb MR 1 1997
Atrazine MR 1 1997
Heptachlor MR 1 1997
2,4-D MR 1 1997
Benzo(a)pyrene MR 1 1997
1,2,4-Trichlorobenzene MR 1 1997
Xylenes, Total MR 1 1997
Chlordane MR 1 1997
o-Dichlorobenzene MR 1 1997
Vinyl chloride MR 1 1997
1,1-Dichloroethylene MR 1 1997
trans-1,2-Dichloroethylene MR 1 1997
Trichloroethylene MR 1 1997
1,1,2-Trichloroethane MR 1 1997

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 Hale Middle 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 MA2286005 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 Hale Middle 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
2015 Coliform (TCR) MCL 6 SDWIS / MA2286005 / 3100
2000 Nitrate MR 3 SDWIS / MA2286005 / 1040
1998 Coliform (TCR) MR 1 SDWIS / MA2286005 / 3100
1997 Endrin MR 1 SDWIS / MA2286005 / 2005
1997 BHC-GAMMA MR 1 SDWIS / MA2286005 / 2010
1997 Methoxychlor MR 1 SDWIS / MA2286005 / 2015
1997 Dalapon MR 1 SDWIS / MA2286005 / 2031
1997 Endothall MR 1 SDWIS / MA2286005 / 2033
1997 Glyphosate MR 1 SDWIS / MA2286005 / 2034
1997 Di(2-ethylhexyl) adipate MR 1 SDWIS / MA2286005 / 2035
1997 OXAMYL MR 1 SDWIS / MA2286005 / 2036
1997 Simazine MR 1 SDWIS / MA2286005 / 2037
1997 Di(2-ethylhexyl) phthalate MR 1 SDWIS / MA2286005 / 2039
1997 Aldicarb sulfoxide MR 1 SDWIS / MA2286005 / 2043
1997 Aldicarb sulfone MR 1 SDWIS / MA2286005 / 2044

How Hale Middle School Compares

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

Metric Hale Middle School Massachusetts avg Federal benchmark
Total violations 79 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 56.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 321 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 Hale Middle School water safe to drink? ▼
Hale Middle School (PWS ID: MA2286005) has 79 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 321 people using Groundwater sources.
How many people does Hale Middle School serve? ▼
Hale Middle School serves 321 people in Bolton, Massachusetts. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does Hale Middle School have? ▼
Hale Middle School has 79 total violations: 12 health-based violations (MCL exceedances or treatment failures), 59 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Hale Middle School water? ▼
No PFAS testing data is available for Hale Middle School under the EPA's UCMR5 monitoring program.
What water source does Hale Middle School use? ▼
Hale Middle 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.