WaterVerge

Is Abingdon, IL Tap Water Safe to Drink?

Graded B+, with 6 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

3K residents served 1 water system PWSID: IL0950050
Overall Score
82.4 / 100
Violations
6 active
Last Updated
May 2026
Source
Purchased ground water
#485 of 891 in Illinois Top 44% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
82.4/100
waterverge.com
B+ 82.4/100

Abingdon, IL — Water Quality Report

Abingdon's drinking water received a grade of B+ (82.4 out of 100), indicating good water quality. The city's 1 water system serves approximately 3,275 residents using purchased ground water.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 5 PFAS compounds, with levels exceeding EPA maximum contaminant levels in the water supply.

The system has 17 violations on record, including 10 health-based violations. 6 remain unresolved.

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

What to know about Abingdon's water

Abingdon ranks #485 out of 891 cities in Illinois for water quality, placing it below average in the state.

Abingdon purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.

Of particular concern: PFAS "forever chemical" levels exceed the 2024 EPA maximum contaminant levels. These synthetic compounds don't break down naturally and require specialized filtration such as reverse osmosis or granular activated carbon.

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

Quality Breakdown

Water quality score

See methodology →
82.4 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
38.4/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
14/20
C
5 PFAS compounds detected.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Purchased ground water.
Water Safety

Is Abingdon, IL water safe to drink?

Concerns Identified

Abingdon's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (82.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 3,275 residents using groundwater (wells).

6
Active Violations
0.0 ppb
Lead (90th %ile)
5 compounds
PFAS Detected
3 events
Disaster History

Recent water quality updates for Abingdon

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

PFAS
5 PFAS "forever chemical" compounds detected

PFAS levels exceed EPA maximum contaminant levels. Reverse osmosis or activated carbon filtration recommended.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Abingdon's water quality assessment. Grade: B+ (82.4/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: TTHM.

Disaster
SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING

Federal disaster declaration (FEMA DR-4116). Flood event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (5 compounds) Elevated
Detected: Highest: PFBA at 0.0500 µg/L Limit: 0.004 µg/L (EPA MCL)

PFAS "forever chemicals" exceed EPA maximum contaminant levels. Reverse osmosis or granular activated carbon filtration strongly recommended.

PFAS "forever chemicals" detected

UCMR 5 testing found 5 PFAS compounds in Abingdon's water supply. PFAS are synthetic chemicals that persist indefinitely in the environment and the human body.

Compound Level EPA MCL Status
PFBA 0.0500 µg/L 0.004 µg/L Within Limit
PFPeA 0.0100 µg/L 0.004 µg/L Within Limit
PFOA 0.0094 µg/L 0.004 µg/L Over MCL
PFOS 0.0048 µg/L 0.004 µg/L Over MCL

Violation history

Abingdon's water system has 17 total violations on record, including 10 health-based violations. 6 remain unresolved. 2 violations were issued in the last 5 years.

OtherMCLMR
Most recent violations:
Jul 2025 Consumer Confidence Rule Open
Jul 2022 Consumer Confidence Rule Open
Jan 2019 TTHM Resolved
Dec 2018 Public Notice Open
Oct 2018 TTHM Resolved

Flood & environmental risk

Warren County has experienced 3 federally declared disasters since 1993. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-4116
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3230
SEVERE STORMS & FLOODING
Flood FEMA DR-997

Where does Abingdon's water come from?

Abingdon's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 3,275 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Abingdon residents can do

Install a water filter

Recommended: Reverse osmosis system. This addresses the specific contaminants found in Abingdon'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

Abingdon'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
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
PFBA
PFAS / Forever Chemical
Near MCL
0.0500 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Detected
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
5
Detected
2
Exceed EPA MCL
3.55
Hazard Index
PFOS max: 0.0048 µg/L PFOA max: 0.0094 µg/L
Compliance Record

Violation summary

17
Total violations
10
Health-based
6
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

17 Total
6 Active
10 Health-based
11 Resolved
2 SNC
Violations by category
Radionuclides and Revised Rad Rule
7
Consumer Confidence Rule
4
Stage 2 Disinfectants and Disinfection Byproducts Rule
2
Inorganic Chemicals
2
Public Notice Rule and Revised PN Rule
1
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2022 Active
Consumer Confidence Rule
Other Violation 0
Dec 2018 Active
Public Notice
Other Violation 0
Oct 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jan 2019 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Mar 2019
Oct 2018 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Dec 2018
Jun 1992 Resolved
Combined Radium (-226 and -228)
Max Contaminant Level
Health-Based Health Resolved Jun 1996
Oct 1989 Resolved
Combined Radium (-226 and -228)
Max Contaminant Level
Health-Based Health Resolved Sep 1993
Feb 1989 Resolved
Gross Alpha, Excl. Radon and U
Max Contaminant Level
Health-Based Health Resolved Jan 1993
Oct 1985 Resolved
Combined Radium (-226 and -228)
Max Contaminant Level
Health-Based Health Resolved Oct 1989
May 1985 Resolved
Fluoride
Max Contaminant Level
Health-Based Health Resolved Apr 1988
Feb 1985 Resolved
Gross Alpha, Excl. Radon and U
Max Contaminant Level
Health-Based Health Resolved Jan 1989
May 1982 Resolved
Fluoride
Max Contaminant Level
Health-Based Health Resolved Apr 1985
Feb 1981 Resolved
Gross Alpha, Excl. Radon and U
Max Contaminant Level
Health-Based Health Resolved Feb 1985
Jun 1977 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 1981
Industrial pollution

Top industrial polluters within 10 miles of Abingdon

Industrial polluters nearby

Reported releases to surface water by facilities near Abingdon, ranked by pounds discharged annually.

Total reported releases to surface water: 1 lbs

FacilityTop chemicalTo surface water (lbs/yr)Distance
GATES CORP
Plastics and Rubber · GATES CORP
GALESBURG, IL61401
Zinc compounds19.3 mi
HEAT & CONTROL INC
Machinery · HEAT & CONTROL INC
GALESBURG, IL61401
10.0 mi
KOPPERS INC. (GALESBURG IL)
Wood Products · KOPPERS INC
GALESBURG, IL61401
8.9 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Site context

Superfund sites within 10 miles of Abingdon

Superfund sites nearby

Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

Source: EPA Superfund National Priorities List

Environmental Risk

Flood & disaster history

3
Declared disasters
May 2013
Most recent
Flood
Most common type

Warren County has experienced 3 federally declared disasters since 1993. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

May 2013
SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #4116
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3230
Jul 1993
SEVERE STORMS & FLOODING
Flood FEMA #997

Recommended water filters

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

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
PFAS compounds exceed EPA maximum contaminant levels

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium ND HI µg/L PFAS Not Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA 0.050 HI µg/L PFAS Detected
PFBS 0.004 HI µg/L PFAS Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA 0.009 0.004 µg/L PFAS Over MCL
PFOS 0.005 0.004 µg/L PFAS Over MCL
PFPeA 0.010 HI µg/L PFAS Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 0.0 ppb from 1992 (0.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Groundwater
Operator
Local Government
Population Served
3,275
Water Systems
1
Water Source

Where Abingdon's water comes from

Purchased Groundwater

Abingdon purchases its water supply from a regional wholesale provider rather than treating raw water directly.

Water quality depends on both the wholesaler's treatment standards and the condition of Abingdon's local distribution pipes and storage facilities.

Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.

The system is operated by local government ownership and serves approximately 3,275 people through 1 water system.

Infrastructure

Water systems serving Abingdon

System Name PWSID Population Source
ABINGDON IL0950050 3,275 GWP
Regional Comparison

How Abingdon compares

Full Illinois rankings →

Abingdon's score of 82.4/100 is above the average of 56/100 among major Illinois cities. It outscores 8 of 10 nearby cities.

Abingdon (this city)
82.4
Chicago
35.2
Aurora
45.5
Joliet
38.5
Naperville
81.2
Champaign
91.9
Illinois avg
56
City Profile

About Abingdon, IL

Wikipedia →

Monmouth is a city in and the county seat of Warren County, Illinois, United States. The population was 8,902 at the 2020 census, down from 9,444 in 2010. It is the home of Monmouth College.

Economic Profile
$55,313
Median Income
$77,894
Median Home Value
$764/mo
Median Rent
7.6%
Unemployment
Community
39.7
Median Age
921
People / sq mi
15.6%
College Educated
75.9%
Homeownership
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Frequently asked questions

Is Abingdon, IL tap water safe to drink?

Abingdon's water quality earned a grade of B+ (82.4/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #485 out of 891 cities tested in Illinois.

What contaminants are in Abingdon's water?

Lead was measured at 0.0 ppb (90th percentile). 5 PFAS compounds were detected. 17 violations are on record.

How is Abingdon'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 Abingdon?

PFAS compounds exceed EPA limits — a reverse osmosis or activated carbon filter is recommended.

Where does Abingdon's water come from?

Abingdon's water is sourced from Purchased ground water. The city has 1 water system serving approximately 3,275 residents.

What health violations has Abingdon's water system had?

Abingdon has 10 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 6 violations remain unresolved.

Is Abingdon's groundwater at risk of contamination?

Abingdon 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 17 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.

Why does Abingdon have so many PFAS compounds in its water?

5 different PFAS "forever chemical" compounds were detected in Abingdon's water supply during UCMR 5 testing. PFAS contamination often originates from proximity to military installations (AFFF firefighting foam), airports, industrial manufacturing sites, or wastewater treatment facilities. Some levels exceed the 2024 EPA maximum contaminant levels — a reverse osmosis or NSF-certified activated carbon filter is strongly recommended.

How does Abingdon's water compare to other cities?

Abingdon ranks #485 out of 891 cities in Illinois (better than 46% of state cities) and #6980 out of 15744 cities nationally (56th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Abingdon's small water system affect quality?

Abingdon's system serves approximately 3,275 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 17 violations on record.