WaterVerge

Is Avon, ME Tap Water Safe to Drink?

Graded A- — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓

650 residents served 1 water system PWSID: ME0091260
Overall Score
86.8 / 100
Violations
3 active
Last Updated
May 2026
Source
Groundwater
#50 of 168 in Maine Top 29% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
86.8/100
waterverge.com
A- 86.8/100

Avon, ME — Water Quality Report

Avon's drinking water received a grade of A- (86.8 out of 100), indicating good water quality. The city's 1 water system serves approximately 650 residents using groundwater.

Lead levels were measured at 0.6 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 31 violations on record, including 22 health-based violations. 3 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Avon's water

Avon ranks #50 out of 168 cities in Maine for water quality, placing it mid-range in the state.

Avon relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Avon may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
86.8 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
40.8/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
16/20
B
Lead at 0.6 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Avon, ME water safe to drink?

Concerns Identified

Avon's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (86.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 650 residents using groundwater (wells).

3
Active Violations
0.6 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Avon

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Avon's water quality assessment. Grade: A- (86.8/100).

Disaster
HURRICANE LEE

Federal disaster declaration (FEMA DR-3598). Hurricane event — may have impacted local water infrastructure.

Disaster
SEVERE STORM AND FLOODING

Federal disaster declaration (FEMA DR-4736). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Combined Radium (-226 and -228).

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Key contaminant findings

Based on the most recent EPA sampling data for Avon's water supply.

Lead Within Limits
Detected: 0.6 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Copper Exceeds Limit
Detected: 1.41 mg/L Limit: 1.3 mg/L (EPA Action Level)

Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.

Violation history

Avon's water system has 31 total violations on record, including 22 health-based violations. 3 remain unresolved.

MROtherMCLTT
Most recent violations:
Dec 2020 Lead and Copper Rule Open
Jan 2014 Combined Radium (-226 and -228) Resolved
Jun 2013 Coliform (TCR) Resolved
Jul 2009 Consumer Confidence Rule Open
Jan 2008 TTHM Resolved

Flood & environmental risk

Franklin County has experienced 10 federally declared disasters since 1987. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Sandy River Near Madrid, Maine.

HURRICANE LEE
Hurricane FEMA DR-3598
SEVERE STORM AND FLOODING
Flood FEMA DR-4736
SEVERE STORM AND FLOODING
Flood FEMA DR-4719

Where does Avon's water come from?

Avon's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 650 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Sandy River Near Madrid, Maine (river).

What Avon residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Avon's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Avon's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.6 ppb
EPA Action Level: 15 ppb · 4% of limit
Safe Level
Copper (90th percentile)
Inorganic
Over Limit
1.41 mg/L
EPA Action Level: 1.3 mg/L · +8% over limit
Exceeds Limit
Compliance Record

Violation summary

31
Total violations
22
Health-based
3
Active / unresolved
Dec 2020
Most recent violation
Compliance Record

Violations & advisories

31 Total
3 Active
22 Health-based
28 Resolved
Violations by category
Surface Water Treatment Rule
15
Total Coliform Rule
8
Lead and Copper Rule
4
Stage 1 Disinfectants and Disinfection Byproducts Rule
2
Radionuclides and Revised Rad Rule
1
Dec 2020 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2009 Active
Consumer Confidence Rule
Other Violation 0
Jul 1995 Active
Lead and Copper Rule
Treatment Technique
Health-Based Health 0
Jan 2014 Resolved
Combined Radium (-226 and -228)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Jun 2013 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2013
Jan 2008 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jul 2005 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2005
Jul 2000 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2000
Aug 1999 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Aug 1999
Dec 1998 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 1998
Dec 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Dec 1998
Nov 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Nov 1998
Oct 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Oct 1998
Sep 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Sep 1998
Aug 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Aug 1998
Jul 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Jul 1998
Jun 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Jun 1998
May 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved May 1998
Apr 1998 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Apr 1998
Showing 20 of 31 violations
Environmental Risk

Drought conditions

D2 — severe drought

Franklin County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

14
Weeks at D2+ (current streak)
16.3%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

10
Declared disasters
Sep 2023
Most recent
Flood
Most common type

Franklin County has experienced 10 federally declared disasters since 1987. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2023
HURRICANE LEE
Hurricane FEMA #3598
Sep 2023
SEVERE STORM AND FLOODING
Flood FEMA #4736
Jul 2023
SEVERE STORM AND FLOODING
Flood FEMA #4719
Sep 2011
TROPICAL STORM IRENE
Hurricane FEMA #4032
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3256
May 1993
HEAVY RAIN, SNOWMELT, ICE JAMS & FLOODING
Flood FEMA #988

Recommended water filters

Based on contaminants detected in Avon's water supply, we recommend the following filter types.

🔧
For Copper
Reverse Osmosis or KDF Filter
Copper exceeds the EPA action level of 1.3 mg/L

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.6 15 ppb Inorganic Safe
Copper (90th percentile) 1.41 1.3 mg/L Inorganic Over Limit
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 34.4 ppb from 1993 (35.0 ppb) to 2023 (0.6 ppb).

Copper level trend (90th percentile)

EPA action level: 1.3 mg/L
Copper has decreased by 0.940 mg/L from 1993 (2.350 mg/L) to 2001 (1.410 mg/L).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
650
Water Systems
1
Water Source

Where Avon's water comes from

Groundwater

Avon's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 650 people through 1 water system.

Local Hydrology

Water bodies near Avon

Avon is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Sandy River Near Madrid, Maine
river
Infrastructure

Water systems serving Avon

System Name PWSID Population Source
MT BLUE STANDARD WATER DISTRICT ME0091260 650 GW
Regional Comparison

How Avon compares

Full Maine rankings →

Avon's score of 86.8/100 is on par with the average of 82/100 among major Maine cities. It outscores 5 of 10 nearby cities.

Avon (this city)
86.8
Maine avg
82
City Profile

About Avon, ME

Economic Profile
$40,938
Median Income
$161,338
Median Home Value
$426/mo
Median Rent
4.3%
Unemployment
Community
50.6
Median Age
7
People / sq mi
23.1%
College Educated
88.8%
Homeownership
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Frequently asked questions

Is Avon, ME tap water safe to drink?

Avon's water quality earned a grade of A- (86.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #50 out of 168 cities tested in Maine.

What contaminants are in Avon's water?

Lead was measured at 0.6 ppb (90th percentile). 31 violations are on record.

How is Avon's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Avon?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Avon's water come from?

Avon's water is sourced from Groundwater. The city has 1 water system serving approximately 650 residents.

What health violations has Avon's water system had?

Avon has 22 health-based violations on record. The most recent violation was recorded in December 2020. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.

Is Avon's groundwater at risk of contamination?

Avon uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 31 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Avon's water compare to other cities?

Avon ranks #50 out of 168 cities in Maine (better than 70% of state cities) and #4484 out of 15744 cities nationally (72th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Avon's small water system affect quality?

Avon's system serves approximately 650 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 31 violations on record.