Public water system · IL1190150
ActiveBethalto
At a glance
Bethalto (PWSID IL1190150) is an active community water system in Madison County, Illinois. It reports serving 15,210 people through 6,705 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in August 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
15,210
Service connections
6,705
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Bethalto compare with other water systems in Madison County?
By EPA's size categories, Bethalto is a large system (10,001 to 100,000 people). Madison County has 54 active public water systems, and Bethalto is the 6th-largest of them by population served. Its population served is about 199% above the county average of 5,082 people per system, and accounts for 5.5% of the 274,409 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 Bethalto is about 127% above 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 Bethalto?
EPA lists Bethalto 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. 29 of the 54 active systems in Madison County (54%) are also owned by a local government.
Does Bethalto have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in August 2021. The violations listed here began between June 1977 and August 2021. By type: 5 monitoring and reporting. The contaminants or rules involved are Total trihalomethanes (TTHM), Haloacetic acids (HAA5), Chlorine and Total coliform bacteria (TCR). EPA lists 4 as resolved and 1 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 |
|---|---|---|---|---|
| 2021-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2021-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1977-06-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 5 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.
Bethalto: frequently asked questions
Who runs Bethalto?
Bethalto (PWSID IL1190150) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Bethalto serve?
Bethalto reports serving 15,210 people through 6,705 service connections in Madison County, Illinois.
Where does Bethalto 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 Bethalto have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in August 2021. 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 Bethalto'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. EPA's records list 5 violations for this system; none is health-based, and the most recent began in August 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Bethalto's water quality report?
As a community water system, Bethalto 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 Madison County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Il American-Alton | Madison | 46,127 | Community | Surface water |
| Il American-Granite City | Madison | 33,572 | Community | Surface water |
| Collinsville | Madison | 29,500 | Community | Groundwater |
| Edwardsville | Madison | 26,808 | Community | Groundwater |
| Troy | Madison | 16,962 | Community | Groundwater |
| Glen Carbon | Madison | 12,618 | 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, “Bethalto, PWSID IL1190150, Illinois”, https://aquacensus.com/water-systems/illinois/bethalto-il1190150 (data as of October 1, 2026).