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Non-Transient Non-Community Water System · PWS ME0093795

Aos 92 Vassalboro Community School

Winslow, Maine 04901 - drinking water served from groundwater sources to 479 people, tracked in EPA SDWIS and UCMR5.

479
People served
81
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 81 drinking-water violations at Aos 92 Vassalboro Community School, 15% of them health-based - above the Maine per-system average.

81
Total EPA violations on record
15%
Health-based (MCL / treatment failure)
479
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Aos 92 Vassalboro Community School

Aos 92 Vassalboro Community School is a local-owned non-transient non-community water system that delivers drinking water to 479 residents in Winslow, Maine (Kennebec County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 81 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 69 monitoring and reporting violations are on file. The most recent violation on record dates to 2001.

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 Maine, EPA tracks 1,864 public water systems serving 936,624 people, with 148,796 cumulative violations and 23,741 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 79.8 violations. Statewide, 14 of 41 UCMR5-tested systems have reported PFAS detections (34.1%).

Aos 92 Vassalboro Community School's 81 violations sit above the Maine 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
479
Total Violations
81
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Kennebec
School/Daycare
Yes
MCL Violations
12
Monitoring Violations
69
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 12 1999
Coliform (TCR) MR 8 2001
Xylenes, Total MR 3 1996
DICHLOROMETHANE MR 3 1996
Vinyl chloride MR 3 1996
trans-1,2-Dichloroethylene MR 3 1996
1,1,1-Trichloroethane MR 3 1996
Carbon tetrachloride MR 3 1996
1,2-Dichloropropane MR 3 1996
1,1,2-Trichloroethane MR 3 1996
Tetrachloroethylene MR 3 1996
CHLOROBENZENE MR 3 1996
Toluene MR 3 1996
Ethylbenzene MR 3 1996
Styrene MR 3 1996
Trichloroethylene MR 3 1996
Benzene MR 3 1996
1,1-Dichloroethylene MR 3 1996
p-Dichlorobenzene MR 3 1996
o-Dichlorobenzene MR 3 1996
1,2-Dichloroethane MR 3 1996
1,2,4-Trichlorobenzene MR 2 1996
cis-1,2-Dichloroethylene MR 2 1996

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 Aos 92 Vassalboro Community 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 ME0093795 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Maine Drinking Water Authority

Maine'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 ME 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
2001 Coliform (TCR) MR 8 SDWIS / ME0093795 / 3100
1999 Coliform (TCR) MCL 12 SDWIS / ME0093795 / 3100
1996 Xylenes, Total MR 3 SDWIS / ME0093795 / 2955
1996 DICHLOROMETHANE MR 3 SDWIS / ME0093795 / 2964
1996 Vinyl chloride MR 3 SDWIS / ME0093795 / 2976
1996 trans-1,2-Dichloroethylene MR 3 SDWIS / ME0093795 / 2979
1996 1,1,1-Trichloroethane MR 3 SDWIS / ME0093795 / 2981
1996 Carbon tetrachloride MR 3 SDWIS / ME0093795 / 2982
1996 1,2-Dichloropropane MR 3 SDWIS / ME0093795 / 2983
1996 1,1,2-Trichloroethane MR 3 SDWIS / ME0093795 / 2985
1996 Tetrachloroethylene MR 3 SDWIS / ME0093795 / 2987
1996 CHLOROBENZENE MR 3 SDWIS / ME0093795 / 2989
1996 Toluene MR 3 SDWIS / ME0093795 / 2991
1996 Ethylbenzene MR 3 SDWIS / ME0093795 / 2992
1996 Styrene MR 3 SDWIS / ME0093795 / 2996

How Aos 92 Vassalboro Community School Compares

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

Metric Aos 92 Vassalboro Community School Maine avg Federal benchmark
Total violations 81 79.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 12.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 34.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 479 502 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,864 regulated public water systems in Maine.

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 Aos 92 Vassalboro Community School water safe to drink?
Aos 92 Vassalboro Community School (PWS ID: ME0093795) has 81 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 479 people using Groundwater sources.
How many people does Aos 92 Vassalboro Community School serve?
Aos 92 Vassalboro Community School serves 479 people in Winslow, Maine. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does Aos 92 Vassalboro Community School have?
Aos 92 Vassalboro Community School has 81 total violations: 12 health-based violations (MCL exceedances or treatment failures), 69 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Aos 92 Vassalboro Community School water?
No PFAS testing data is available for Aos 92 Vassalboro Community School under the EPA's UCMR5 monitoring program.
What water source does Aos 92 Vassalboro Community School use?
Aos 92 Vassalboro Community 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.
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.