Public water system · IL0015545
ActiveExpressway MHP
At a glance
Expressway MHP (PWSID IL0015545) is an active community water system in Adams County, Illinois. It reports serving 98 people through 56 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in July 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
98
Service connections
56
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Expressway MHP compare with other water systems in Adams County?
By EPA's size categories, Expressway MHP is a very small system (500 people or fewer). Adams County has 22 active public water systems. Its population served is well below the county average of 3,086 people per system, and accounts for 0.1% of the 67,881 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 Expressway MHP 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 Expressway MHP?
EPA lists Expressway MHP as privately owned. 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. 5 of the 22 active systems in Adams County (23%) are also privately owned.
Does Expressway MHP have drinking water violations?
EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in July 2009. The violations listed here began between June 1998 and July 2009. By type: 5 monitoring and reporting and 3 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 6 as archived and 2 as resolved. 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. 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 |
|---|---|---|---|---|
| 2009-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1999-06-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1999-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1998-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1998-06-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 8 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.
Expressway MHP: frequently asked questions
Who runs Expressway MHP?
Expressway MHP (PWSID IL0015545) is a community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Expressway MHP serve?
Expressway MHP reports serving 98 people through 56 service connections in Adams County, Illinois.
Where does Expressway MHP 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 Expressway MHP have any drinking water violations?
EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in July 2009. 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 Expressway MHP'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 8 violations for this system; 3 are health-based, and the most recent began in July 2009. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Expressway MHP's water quality report?
As a community water system, Expressway MHP 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 Adams County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Quincy | Adams | 42,000 | Community | Surface water |
| Abs Water Coop | Adams | 6,858 | Community | Purchased groundwater |
| Mill Creek PWD | Adams | 5,755 | Community | Groundwater |
| Clayton-Camp Point Water Commission | Adams | 2,470 | Community | Groundwater |
| Blessing Hospital | Adams | 2,460 | Non-transient non-community | Purchased surface water |
| Payson | Adams | 1,386 | 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, “Expressway MHP, PWSID IL0015545, Illinois”, https://aquacensus.com/water-systems/illinois/expressway-mhp-il0015545 (data as of October 1, 2026).