Public water system · IL0730050

Active

Alpha

At a glance

Alpha (PWSID IL0730050) is an active community water system in Henry County, Illinois. It reports serving 626 people through 354 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2023.

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

Population served

626

Service connections

354

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDIL0730050

System typeCommunity water system

Activity statusActive

Population served626

Service connections354

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyIL state drinking water program

City servedAlpha

StateIllinois

ZIP—

CountyHenry County

How does Alpha compare with other water systems in Henry County?

By EPA's size categories, Alpha is a small system (501 to 3,300 people). Henry County has 72 active public water systems. Its population served is roughly in line with the county average of 598 people per system, and accounts for 1.5% of the 43,076 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 Alpha 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.

Who owns and regulates Alpha?

EPA lists Alpha 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. 18 of the 72 active systems in Henry County (25%) are also owned by a local government.

Does Alpha have drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2023. The violations listed here began between April 1999 and April 2023. By type: 7 monitoring and reporting, 3 public notice, recordkeeping or other and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Public Notice (3 of them). EPA lists 12 as resolved. 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.

Began	Violation	Contaminant or rule	Health-based	Status
2023-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2023-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2008-06-18	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2007-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2007-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2006-10-05	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2006-10-05	Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76	Public Noticecode 7500	No	Resolved
2006-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2005-08-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2005-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2001-06-18	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Resolved
1999-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Gross alpha (excluding radon and uranium)code 4000	Yes	Resolved

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.

Alpha: frequently asked questions

Who runs Alpha?

Alpha (PWSID IL0730050) is a community water system owned by a local government. It is regulated by the IL state drinking water program.

How many people does Alpha serve?

Alpha reports serving 626 people through 354 service connections in Henry County, Illinois.

Where does Alpha get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Alpha have any drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2023. 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 Alpha'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, 2 are health-based, and the most recent began in April 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.

Where can I find Alpha's water quality report?

As a community water system, Alpha 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 Henry County

Water system	County	Population served	Type	Source
Kewanee	Henry	12,509	Community	Groundwater
Geneseo	Henry	6,539	Community	Groundwater
Colona West	Henry	2,640	Community	Groundwater
Colona East	Henry	2,501	Community	Groundwater
Galva	Henry	2,449	Community	Groundwater
Cambridge	Henry	2,086	Community	Groundwater

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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, “Alpha, PWSID IL0730050, Illinois”, https://aquacensus.com/water-systems/illinois/alpha-il0730050 (data as of October 1, 2026).