Skip to content
AquaCensus

Public water system · IL3000901

Active

Tall Oaks Country Club

At a glance

Tall Oaks Country Club (PWSID IL3000901) is an active transient non-community water system in Marshall County, Illinois. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2019.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

25

Service connections

1

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDIL3000901
System typeTransient non-community water system
Activity statusActive
Population served25
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyIL state drinking water program
City served—
StateIllinois
ZIP—
CountyMarshall County

How does Tall Oaks Country Club compare with other water systems in Marshall County?

By EPA's size categories, Tall Oaks Country Club is a very small system (500 people or fewer). Marshall County has 20 active public water systems. Its population served is well below the county average of 513 people per system, and accounts for 0.2% of the 10,259 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Tall Oaks Country Club is well below that figure.

What does “transient non-community water system” mean?

A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Illinois has 1,703 active transient non-community water systems, 44% 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 Tall Oaks Country Club?

EPA lists Tall Oaks Country Club 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. 11 of the 20 active systems in Marshall County (55%) are also privately owned.

Does Tall Oaks Country Club have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2019. The violations listed here began between January 1984 and January 2019. By type: 10 monitoring and reporting, 1 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (9 of them). EPA lists 9 as archived and 3 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.

BeganViolationContaminant or ruleHealth-basedStatus
2019-01-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved
2010-01-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2008-01-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved
1989-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesArchived
1988-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived
1988-04-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived
1987-10-01Public notice, recordkeeping or otherOperations Report · code 10Not reportedNoArchived
1987-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived
1985-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived
1984-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived
1984-07-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived
1984-01-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoArchived

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.

Tall Oaks Country Club: frequently asked questions

Who runs Tall Oaks Country Club?

Tall Oaks Country Club (PWSID IL3000901) is a transient non-community water system privately owned. It is regulated by the IL state drinking water program.

How many people does Tall Oaks Country Club serve?

Tall Oaks Country Club reports serving 25 people through 1 service connection in Marshall County, Illinois.

Where does Tall Oaks Country Club 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 Tall Oaks Country Club have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2019. 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 Tall Oaks Country Club'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, one is health-based, and the most recent began in January 2019. For current results, consult EPA ECHO, or the IL state drinking water program.

Where can I find Tall Oaks Country Club's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Tall Oaks Country Club is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Marshall County

Water systemCountyPopulation servedTypeSource
HenryMarshall2,230CommunityGroundwater
LaconMarshall1,878CommunityGroundwater
TolucaMarshall1,348CommunityGroundwater
Prairie Path Water Company-Lake WildwoodMarshall1,295CommunityGroundwater
WenonaMarshall974CommunityGroundwater
HopewellMarshall420CommunityGroundwater

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, “Tall Oaks Country Club, PWSID IL3000901, Illinois”, https://aquacensus.com/water-systems/illinois/tall-oaks-country-club-il3000901 (data as of October 1, 2026).