Public water system · IL1615540
ActiveTennants Shady Oaks Subdivision
At a glance
Tennants Shady Oaks Subdivision (PWSID IL1615540) is an active community water system in Rock Island County, Illinois. It reports serving 44 people through 18 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
44
Service connections
18
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Tennants Shady Oaks Subdivision compare with other water systems in Rock Island County?
By EPA's size categories, Tennants Shady Oaks Subdivision is a very small system (500 people or fewer). Rock Island County has 102 active public water systems. Its population served is well below the county average of 1,592 people per system, and accounts for less than 0.1% of the 162,391 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 Tennants Shady Oaks Subdivision 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 Tennants Shady Oaks Subdivision?
EPA lists Tennants Shady Oaks Subdivision 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. 67 of the 102 active systems in Rock Island County (66%) are also privately owned.
Does Tennants Shady Oaks Subdivision 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 Tennants Shady Oaks Subdivision. For the latest compliance status, check EPA ECHO for current compliance history.
Tennants Shady Oaks Subdivision: frequently asked questions
Who runs Tennants Shady Oaks Subdivision?
Tennants Shady Oaks Subdivision (PWSID IL1615540) is a community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Tennants Shady Oaks Subdivision serve?
Tennants Shady Oaks Subdivision reports serving 44 people through 18 service connections in Rock Island County, Illinois.
Where does Tennants Shady Oaks Subdivision 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 Tennants Shady Oaks Subdivision have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Tennants Shady Oaks Subdivision'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 Tennants Shady Oaks Subdivision's water quality report?
As a community water system, Tennants Shady Oaks Subdivision 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 Rock Island County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Moline | Rock Island | 44,500 | Community | Surface water |
| Rock Island | Rock Island | 39,018 | Community | Surface water |
| East Moline | Rock Island | 21,374 | Community | Surface water |
| Rock Island Arsenal, Us Army | Rock Island | 7,800 | Community | Surface water |
| Silvis | Rock Island | 7,473 | Community | Purchased surface water |
| Niabi Zoo | Rock Island | 5,000 | Transient non-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, “Tennants Shady Oaks Subdivision, PWSID IL1615540, Illinois”, https://aquacensus.com/water-systems/illinois/tennants-shady-oaks-subdivision-il1615540 (data as of October 1, 2026).