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Community Water System · PWS ME0090050

Andover Water District

Andover, Maine 04216 - drinking water served from groundwater sources to 265 people, tracked in EPA SDWIS and UCMR5.

265
People served
126
EPA violations
27
Health-based
Untested
UCMR5 result

The verdict

EPA records 126 drinking-water violations at Andover Water District, 21% of them health-based - above the Maine per-system average.

126
Total EPA violations on record
21%
Health-based (MCL / treatment failure)
265
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Andover Water District

Andover Water District is a local-owned community water system that delivers drinking water to 265 residents in Andover, Maine (Oxford County) through 106 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 126 total violations for this system , of which 27 (21%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 73 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Consumer Confidence Rule, recorded in 25 violations (Other). 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%).

Andover Water District's 126 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
265
Total Violations
126
Health-Based Violations
27
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
106
County
Oxford
School/Daycare
No
MCL Violations
4
Monitoring Violations
73
Treatment Tech Violations
23

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 25 2008
Surface Water Treatment Rule TT 23 1997
Lead and Copper Rule MR 23 2018
Coliform (TCR) MR 12 2008
Nitrate MR 7 2008
Nitrite MR 7 2008
Coliform (TCR) MCL 4 1995
Fluoride MR 2 1995
Mercury MR 2 1995
Selenium MR 2 1995
CYANIDE MR 2 1995
Nickel MR 2 1995
Antimony, Total MR 2 1995
Thallium, Total MR 2 1995
Arsenic MR 2 1995
Barium MR 2 1995
Cadmium MR 2 1995
Chromium MR 2 1995
Beryllium, Total MR 2 1995

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 Andover Water District.

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 ME0090050 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
2018 Lead and Copper Rule MR 23 SDWIS / ME0090050 / 5000
2008 Consumer Confidence Rule Other 25 SDWIS / ME0090050 / 7000
2008 Coliform (TCR) MR 12 SDWIS / ME0090050 / 3100
2008 Nitrate MR 7 SDWIS / ME0090050 / 1040
2008 Nitrite MR 7 SDWIS / ME0090050 / 1041
1997 Surface Water Treatment Rule TT 23 SDWIS / ME0090050 / 0200
1995 Coliform (TCR) MCL 4 SDWIS / ME0090050 / 3100
1995 Fluoride MR 2 SDWIS / ME0090050 / 1025
1995 Mercury MR 2 SDWIS / ME0090050 / 1035
1995 Selenium MR 2 SDWIS / ME0090050 / 1045
1995 CYANIDE MR 2 SDWIS / ME0090050 / 1024
1995 Nickel MR 2 SDWIS / ME0090050 / 1036
1995 Antimony, Total MR 2 SDWIS / ME0090050 / 1074
1995 Thallium, Total MR 2 SDWIS / ME0090050 / 1085
1995 Arsenic MR 2 SDWIS / ME0090050 / 1005

How Andover Water District Compares

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

Metric Andover Water District Maine avg Federal benchmark
Total violations 126 79.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 27 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 265 502 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 Andover Water District water safe to drink? ▼
Andover Water District (PWS ID: ME0090050) has 126 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 265 people using Groundwater sources.
How many people does Andover Water District serve? ▼
Andover Water District serves 265 people in Andover, Maine. It is a Local-owned system using Groundwater water sources with 106 service connections.
What type of violations does Andover Water District have? ▼
Andover Water District has 126 total violations: 27 health-based violations (MCL exceedances or treatment failures), 73 monitoring/reporting violations, and 23 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Andover Water District water? ▼
No PFAS testing data is available for Andover Water District under the EPA's UCMR5 monitoring program.
What water source does Andover Water District use? ▼
Andover Water District 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.