Public water system · IL1890100

Active

Ashley

At a glance

Ashley (PWSID IL1890100) is an active community water system in Washington County, Illinois. It reports serving 565 people through 266 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in October 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

565

Service connections

266

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDIL1890100

System typeCommunity water system

Activity statusActive

Population served565

Service connections266

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyIL state drinking water program

City servedAshley

StateIllinois

ZIP—

CountyWashington County

How does Ashley compare with other water systems in Washington County?

By EPA's size categories, Ashley is a small system (501 to 3,300 people). Washington County has 15 active public water systems. Its population served is about 59% below the county average of 1,367 people per system, and accounts for 2.8% of the 20,507 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active community water system reports serving 6,703 people, so Ashley is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Illinois has 1,773 active community water systems, 46% of the state's 3,872 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 619 Illinois systems (16%) list purchased surface water as their primary source.

Who owns and regulates Ashley?

EPA lists Ashley as owned by a local government. The IL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 9 of the 15 active systems in Washington County (60%) are also owned by a local government.

Does Ashley have drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in October 2024. The violations listed here began between May 1994 and October 2024. By type: 7 monitoring and reporting, 4 contaminant level above the legal limit and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 7 as resolved and 5 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.

Began	Violation	Contaminant or rule	Health-based	Status
2024-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2006-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2002-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
2000-12-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
2000-01-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved
1999-07-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved
1996-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Atrazinecode 2050	Yes	Resolved
1996-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Atrazinecode 2050	Yes	Resolved
1996-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Atrazinecode 2050	Yes	Resolved
1994-07-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	Archived
1994-05-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Archived
1994-05-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Ashley: frequently asked questions

Who runs Ashley?

Ashley (PWSID IL1890100) is a community water system owned by a local government. It is regulated by the IL state drinking water program.

How many people does Ashley serve?

Ashley reports serving 565 people through 266 service connections in Washington County, Illinois.

Where does Ashley get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does Ashley have any drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in October 2024. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Ashley's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.

Where can I find Ashley's water quality report?

As a community water system, Ashley must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Washington County

Water system	County	Population served	Type	Source
Washington County Water Company	Washington	11,374	Community	Purchased surface water
Nashville	Washington	3,230	Community	Surface water
Okawville	Washington	1,457	Community	Purchased surface water
Irvington	Washington	1,081	Community	Purchased surface water
Hoyleton Rwc	Washington	1,020	Community	Purchased surface water
Hoyleton	Washington	658	Community	Purchased surface water

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Ashley, PWSID IL1890100, Illinois”, https://aquacensus.com/water-systems/illinois/ashley-il1890100 (data as of October 1, 2026).