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Community Water System · PWS ME0003374

Topsham Mobile Home Park Inc

Topsham, Maine 04086 - drinking water served from groundwater sources to 243 people, tracked in EPA SDWIS and UCMR5.

243
People served
25
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 25 drinking-water violations at Topsham Mobile Home Park Inc, 48% of them health-based - below the Maine per-system average.

25
Total EPA violations on record
48%
Health-based (MCL / treatment failure)
243
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Topsham Mobile Home Park Inc

Topsham Mobile Home Park Inc is a private-owned community water system that delivers drinking water to 243 residents in Topsham, Maine (Sagadahoc County) through 97 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 25 total violations for this system , of which 12 (48%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 13 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

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%).

Topsham Mobile Home Park Inc's 25 violations sit below 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
243
Total Violations
25
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
97
County
Sagadahoc
School/Daycare
No
MCL Violations
12
Monitoring Violations
13
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 12 2002
Nitrate MR 4 1995
Lead and Copper Rule MR 2 2020
Fluoride MR 1 1981
Chromium MR 1 1981
Barium MR 1 1981
Selenium MR 1 1981
Mercury MR 1 1981
Arsenic MR 1 1981
Cadmium MR 1 1981

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 Topsham Mobile Home Park Inc.

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 ME0003374 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
2020 Lead and Copper Rule MR 2 SDWIS / ME0003374 / 5000
2002 Coliform (TCR) MCL 12 SDWIS / ME0003374 / 3100
1995 Nitrate MR 4 SDWIS / ME0003374 / 1040
1981 Fluoride MR 1 SDWIS / ME0003374 / 1025
1981 Chromium MR 1 SDWIS / ME0003374 / 1020
1981 Barium MR 1 SDWIS / ME0003374 / 1010
1981 Selenium MR 1 SDWIS / ME0003374 / 1045
1981 Mercury MR 1 SDWIS / ME0003374 / 1035
1981 Arsenic MR 1 SDWIS / ME0003374 / 1005
1981 Cadmium MR 1 SDWIS / ME0003374 / 1015

How Topsham Mobile Home Park Inc Compares

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

Metric Topsham Mobile Home Park Inc Maine avg Federal benchmark
Total violations 25 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 243 502 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 Topsham Mobile Home Park Inc water safe to drink? ▼
Topsham Mobile Home Park Inc (PWS ID: ME0003374) has 25 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 243 people using Groundwater sources.
How many people does Topsham Mobile Home Park Inc serve? ▼
Topsham Mobile Home Park Inc serves 243 people in Topsham, Maine. It is a Private-owned system using Groundwater water sources with 97 service connections.
What type of violations does Topsham Mobile Home Park Inc have? ▼
Topsham Mobile Home Park Inc has 25 total violations: 12 health-based violations (MCL exceedances or treatment failures), 13 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Topsham Mobile Home Park Inc water? ▼
No PFAS testing data is available for Topsham Mobile Home Park Inc under the EPA's UCMR5 monitoring program.
What water source does Topsham Mobile Home Park Inc use? ▼
Topsham Mobile Home Park Inc uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.