Public water system · IL1090100
ActiveBlandinsville
At a glance
Blandinsville (PWSID IL1090100) is an active community water system in McDonough County, Illinois. It reports serving 569 people through 340 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in February 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
569
Service connections
340
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Blandinsville compare with other water systems in McDonough County?
By EPA's size categories, Blandinsville is a small system (501 to 3,300 people). McDonough County has 21 active public water systems, and Blandinsville is the 6th-largest of them by population served. Its population served is about 64% below the county average of 1,588 people per system, and accounts for 1.7% of the 33,349 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 Blandinsville 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 89 Illinois systems (2.3%) list surface water as their primary source.
Who owns and regulates Blandinsville?
EPA lists Blandinsville 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. 12 of the 21 active systems in McDonough County (57%) are also owned by a local government.
Does Blandinsville have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in February 2008. The violations listed here began between June 1979 and February 2008. By type: 6 required treatment not met and 6 monitoring and reporting. The contaminant or rule involved most often is Carbon, total (5 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 |
|---|---|---|---|---|
| 2008-02-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2008-01-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2007-10-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2007-07-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2007-04-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2007-01-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloraminecode 1006 | No | Resolved |
| 1979-06-25 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Archived |
| 1979-06-25 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Archived |
| 1979-06-25 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1979-06-25 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Archived |
| 1979-06-25 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | 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.
Blandinsville: frequently asked questions
Who runs Blandinsville?
Blandinsville (PWSID IL1090100) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Blandinsville serve?
Blandinsville reports serving 569 people through 340 service connections in McDonough County, Illinois.
Where does Blandinsville get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Blandinsville have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in February 2008. 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 Blandinsville'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, 6 are health-based, and the most recent began in February 2008. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Blandinsville's water quality report?
As a community water system, Blandinsville 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 McDonough County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Macomb | McDonough | 15,051 | Community | Surface water |
| Western Illinois University | McDonough | 8,000 | Community | Purchased surface water |
| Bushnell | McDonough | 2,972 | Community | Groundwater |
| West Prairie Water Co-Op | McDonough | 2,395 | Community | Purchased groundwater |
| Colchester | McDonough | 1,395 | Community | Purchased surface water |
| Good Hope | McDonough | 536 | 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, “Blandinsville, PWSID IL1090100, Illinois”, https://aquacensus.com/water-systems/illinois/blandinsville-il1090100 (data as of October 1, 2026).