WaterVerge

Is Ashley, IL Tap Water Safe to Drink?

Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

565 residents served 1 water system PWSID: IL1890100
Overall Score
91.4 / 100
Violations
3 active
Last Updated
May 2026
Source
Purchased surface water
#103 of 891 in Illinois Top 11% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
91.4/100
waterverge.com
A 91.4/100

Ashley, IL — Water Quality Report

Ashley's drinking water received a grade of A (91.4 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 565 residents using purchased surface water.

Lead levels were measured at 1.9 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 18 violations on record, including 7 health-based violations. 3 remain unresolved.

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

What to know about Ashley's water

Ashley ranks #103 out of 891 cities in Illinois for water quality, placing it above average in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

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

Quality Breakdown

Water quality score

See methodology →
91.4 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
42.4/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.9 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Ashley, IL water safe to drink?

Concerns Identified

Ashley's drinking water has significant quality concerns based on EPA testing data. With a grade of A (91.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 565 residents using surface water (rivers, lakes, or reservoirs).

3
Active Violations
1.9 ppb
Lead (90th %ile)
2 events
Disaster History

Recent water quality updates for Ashley

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Ashley's water quality assessment. Grade: A (91.4/100).

Violation
1 drinking water violation recorded

Contaminants: Total Haloacetic Acids (HAA5).

Disaster
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODNG

Federal disaster declaration (FEMA DR-4819). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Total Haloacetic Acids (HAA5).

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3230). Hurricane event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Key contaminant findings

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

Lead Within Limits
Detected: 1.9 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Ashley's water system has 18 total violations on record, including 7 health-based violations. 3 remain unresolved. 1 violation was issued in the last 5 years.

MRMCLTT
Most recent violations:
Oct 2024 Total Haloacetic Acids (HAA5) Resolved
Oct 2006 Total Haloacetic Acids (HAA5) Resolved
Jul 2002 Coliform (TCR) Resolved
Dec 2000 Coliform (TCR) Resolved
Jan 2000 Lead and Copper Rule Open

Flood & environmental risk

Washington County has experienced 2 federally declared disasters since 2005. 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, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODNG
Flood FEMA DR-4819
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3230

Where does Ashley's water come from?

Ashley's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 565 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.

What Ashley residents can do

Install a water filter

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

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
1.9 ppb
EPA Action Level: 15 ppb · 13% of limit
Safe Level
Compliance Record

Violation summary

18
Total violations
7
Health-based
3
Active / unresolved
Oct 2024
Most recent violation
Compliance Record

Violations & advisories

18 Total
3 Active
7 Health-based
15 Resolved
Violations by category
Total Coliform Rule
6
Synthetic Organic Chemicals
3
Surface Water Treatment Rule
3
Lead and Copper Rule
2
Stage 2 Disinfectants and Disinfection Byproducts Rule
1
Jan 2000 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 1999 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Oct 2024 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2024
Oct 2006 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2006
Jul 2002 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jul 2002
Dec 2000 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2000
Jul 1996 Resolved
Atrazine
Max Contaminant Level
Health-Based Health Resolved Sep 1996
Apr 1996 Resolved
Atrazine
Max Contaminant Level
Health-Based Health Resolved Jun 1996
Jan 1996 Resolved
Atrazine
Max Contaminant Level
Health-Based Health Resolved Mar 1996
Jul 1994 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Jul 1994
May 1994 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved May 1994
May 1994 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved May 1994
Aug 1993 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 1993
Aug 1993 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Aug 1993
Jul 1993 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Jul 1993
Jan 1993 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 1993
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 Ashley

Industrial polluters nearby

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

FacilityTop chemicalTo surface water (lbs/yr)Distance
ANTOLIN NASHVILLE
Transportation Equipment · GRUPO ANTOLIN NORTH AMERICA INC
NASHVILLE, IL62263
9.8 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

2
Declared disasters
Sep 2024
Most recent
Flood
Most common type

Washington County has experienced 2 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2024
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODNG
Flood FEMA #4819
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3230

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.9 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has increased by 1.9 ppb from 1993 (0.0 ppb) to 2025 (1.9 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
565
Water Systems
1
Water Source

Where Ashley's water comes from

Purchased Surface Water

Ashley's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 565 people through 1 water system.

Infrastructure

Water systems serving Ashley

System Name PWSID Population Source
ASHLEY IL1890100 565 SWP
Regional Comparison

How Ashley compares

Full Illinois rankings →

Ashley's score of 91.4/100 is above the average of 56/100 among major Illinois cities. It outscores 9 of 10 nearby cities.

Ashley (this city)
91.4
Chicago
35.2
Aurora
45.5
Joliet
38.5
Naperville
81.2
Champaign
91.9
Illinois avg
56
City Profile

About Ashley, IL

Wikipedia →

Ashley is a city in Washington County, Illinois, United States. The population was 462 at the 2020 census.

Economic Profile
$45,000
Median Income
$70,344
Median Home Value
$605/mo
Median Rent
5.9%
Unemployment
Community
32.3
Median Age
141
People / sq mi
1.5%
College Educated
71.2%
Homeownership
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Frequently asked questions

Is Ashley, IL tap water safe to drink?

Ashley's water quality earned a grade of A (91.4/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #103 out of 891 cities tested in Illinois.

What contaminants are in Ashley's water?

Lead was measured at 1.9 ppb (90th percentile). 18 violations are on record.

How is Ashley'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 Ashley?

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

Where does Ashley's water come from?

Ashley's water is sourced from Purchased surface water. The city has 1 water system serving approximately 565 residents.

What health violations has Ashley's water system had?

Ashley has 7 health-based violations on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.

How does Ashley's water compare to other cities?

Ashley ranks #103 out of 891 cities in Illinois (better than 88% of state cities) and #1737 out of 15744 cities nationally (89th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Ashley's small water system affect quality?

Ashley's system serves approximately 565 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 18 violations on record.