Public water system · IL0730410
ActiveWillow Haven MHP
At a glance
Willow Haven MHP (PWSID IL0730410) is an active community water system in Henry County, Illinois. It reports serving 270 people through 1 service connection. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
270
Service connections
1
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Willow Haven MHP compare with other water systems in Henry County?
By EPA's size categories, Willow Haven MHP is a very small system (500 people or fewer). Henry County has 72 active public water systems. Its population served is about half of the county average of 598 people per system, and accounts for 0.6% 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 Willow Haven 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 348 Illinois systems (9%) list purchased groundwater as their primary source.
Who owns and regulates Willow Haven MHP?
EPA lists Willow Haven MHP 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 Willow Haven MHP have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Willow Haven MHP. For the latest compliance status, check EPA ECHO for current compliance history.
Willow Haven MHP: frequently asked questions
Who runs Willow Haven MHP?
Willow Haven MHP (PWSID IL0730410) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Willow Haven MHP serve?
Willow Haven MHP reports serving 270 people through 1 service connection in Henry County, Illinois.
Where does Willow Haven MHP get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Willow Haven MHP have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Willow Haven 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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Willow Haven MHP's water quality report?
As a community water system, Willow Haven 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 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 |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Willow Haven MHP, PWSID IL0730410, Illinois”, https://aquacensus.com/water-systems/illinois/willow-haven-mhp-il0730410 (data as of October 1, 2026).