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Transient Non-Community Water System · PWS ME0094649

Nouria-Topsham

Worcester, Maine 01606 - drinking water served from groundwater sources to 30 people, tracked in EPA SDWIS and UCMR5.

30
People served
168
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 168 drinking-water violations at Nouria-Topsham, 3% of them health-based - above the Maine per-system average.

168
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
30
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Nouria-Topsham

Nouria-Topsham is a private-owned transient non-community water system that delivers drinking water to 30 residents in Worcester, Maine (Sagadahoc County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 168 total violations for this system , of which 5 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 151 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 Revised Total Coliform Rule, recorded in 28 violations (MON). 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%).

Nouria-Topsham's 168 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
30
Total Violations
168
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Sagadahoc
School/Daycare
No
MCL Violations
5
Monitoring Violations
151
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 28 2021
Nitrate MR 24 2022
Coliform (TCR) MR 15 2014
Public Notice Other 12 2023
Coliform (TCR) MCL 5 2008
1,2,4-Trichlorobenzene MR 4 2018
cis-1,2-Dichloroethylene MR 4 2018
Xylenes, Total MR 4 2018
p-Dichlorobenzene MR 4 2018
1,1-Dichloroethylene MR 4 2018
trans-1,2-Dichloroethylene MR 4 2018
1,1,1-Trichloroethane MR 4 2018
Carbon tetrachloride MR 4 2018
1,2-Dichloropropane MR 4 2018
Trichloroethylene MR 4 2018
1,1,2-Trichloroethane MR 4 2018
Toluene MR 4 2018
Ethylbenzene MR 4 2018
1,2-Dichloroethane MR 4 2018
CHLOROBENZENE MR 4 2018
Benzene MR 4 2018
o-Dichlorobenzene MR 4 2018
DICHLOROMETHANE MR 4 2018
Tetrachloroethylene MR 4 2018
Vinyl chloride MR 4 2018
Styrene MR 4 2018

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 Nouria-Topsham.

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 ME0094649 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
2023 Public Notice Other 12 SDWIS / ME0094649 / 7500
2022 Nitrate MR 24 SDWIS / ME0094649 / 1040
2021 Revised Total Coliform Rule MON 28 SDWIS / ME0094649 / 8000
2018 1,2,4-Trichlorobenzene MR 4 SDWIS / ME0094649 / 2378
2018 cis-1,2-Dichloroethylene MR 4 SDWIS / ME0094649 / 2380
2018 Xylenes, Total MR 4 SDWIS / ME0094649 / 2955
2018 p-Dichlorobenzene MR 4 SDWIS / ME0094649 / 2969
2018 1,1-Dichloroethylene MR 4 SDWIS / ME0094649 / 2977
2018 trans-1,2-Dichloroethylene MR 4 SDWIS / ME0094649 / 2979
2018 1,1,1-Trichloroethane MR 4 SDWIS / ME0094649 / 2981
2018 Carbon tetrachloride MR 4 SDWIS / ME0094649 / 2982
2018 1,2-Dichloropropane MR 4 SDWIS / ME0094649 / 2983
2018 Trichloroethylene MR 4 SDWIS / ME0094649 / 2984
2018 1,1,2-Trichloroethane MR 4 SDWIS / ME0094649 / 2985
2018 Toluene MR 4 SDWIS / ME0094649 / 2991

How Nouria-Topsham Compares

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

Metric Nouria-Topsham Maine avg Federal benchmark
Total violations 168 79.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 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 30 502 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 Nouria-Topsham water safe to drink? ▼
Nouria-Topsham (PWS ID: ME0094649) has 168 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 30 people using Groundwater sources.
How many people does Nouria-Topsham serve? ▼
Nouria-Topsham serves 30 people in Worcester, Maine. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Nouria-Topsham have? ▼
Nouria-Topsham has 168 total violations: 5 health-based violations (MCL exceedances or treatment failures), 151 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Nouria-Topsham water? ▼
No PFAS testing data is available for Nouria-Topsham under the EPA's UCMR5 monitoring program.
What water source does Nouria-Topsham use? ▼
Nouria-Topsham uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.