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AquaCensus

Public water system · PA6430062

Active

Forrest Brooke MHP

At a glance

Forrest Brooke MHP (PWSID PA6430062) is an active community water system in Mercer County, Illinois. It reports serving 491 people through 280 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026.

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

Population served

491

Service connections

280

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDPA6430062
System typeCommunity water system
Activity statusActive
Population served491
Service connections280
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyPA state drinking water program
City served—
StateIllinois
ZIP—
CountyMercer County

How does Forrest Brooke MHP compare with other water systems in Mercer County?

By EPA's size categories, Forrest Brooke MHP is a very small system (500 people or fewer). Mercer County has 27 active public water systems. Its population served is about 15% above the county average of 426 people per system, and accounts for 4.3% of the 11,499 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 Forrest Brooke 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 Forrest Brooke MHP?

EPA lists Forrest Brooke MHP as privately owned. The PA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 17 of the 27 active systems in Mercer County (63%) are also privately owned.

Does Forrest Brooke MHP have drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026. The violations listed here began between October 2016 and February 2026. By type: 10 monitoring and reporting and 2 required treatment not met. The contaminant or rule involved most often is Groundwater Rule (6 of them). EPA lists 12 as resolved. 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
2026-02-01Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31Groundwater Rulecode 0700NoResolved
2023-05-01Required treatment not metTreatment Technique (SWTR and GWR) · code 41Groundwater Rulecode 0700YesResolved
2023-04-01Required treatment not metTreatment Technique (SWTR and GWR) · code 41Groundwater Rulecode 0700YesResolved
2022-08-01Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31Groundwater Rulecode 0700NoResolved
2022-06-01Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31Groundwater Rulecode 0700NoResolved
2021-07-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Total trihalomethanes (TTHM)code 2950NoResolved
2021-07-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Haloacetic acids (HAA5)code 2456NoResolved
2021-04-01Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31Groundwater Rulecode 0700NoResolved
2016-10-01Monitoring and reportingMonitoring, Regular · code 03Combined Uraniumcode 4006NoResolved
2016-10-01Monitoring and reportingMonitoring, Regular · code 03Radium-226code 4020NoResolved
2016-10-01Monitoring and reportingMonitoring, Regular · code 03Radium-228code 4030NoResolved
2016-10-01Monitoring and reportingMonitoring, Regular · code 03Gross alpha (excluding radon and uranium)code 4000NoResolved

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.

Forrest Brooke MHP: frequently asked questions

Who runs Forrest Brooke MHP?

Forrest Brooke MHP (PWSID PA6430062) is a community water system privately owned. It is regulated by the PA state drinking water program.

How many people does Forrest Brooke MHP serve?

Forrest Brooke MHP reports serving 491 people through 280 service connections in Mercer County, Illinois.

Where does Forrest Brooke 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 Forrest Brooke MHP have any drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026. 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 Forrest Brooke 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. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.

Where can I find Forrest Brooke MHP's water quality report?

As a community water system, Forrest Brooke 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 Mercer County

Water systemCountyPopulation servedTypeSource
AledoMercer3,470CommunityGroundwater
ViolaMercer970CommunityGroundwater
SherrardMercer785CommunityGroundwater
Fyre Lake Water CompanyMercer760CommunityGroundwater
KeithsburgMercer747CommunityGroundwater
New WindsorMercer740CommunityGroundwater

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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, “Forrest Brooke MHP, PWSID PA6430062, Illinois”, https://aquacensus.com/water-systems/illinois/forrest-brooke-mhp-pa6430062 (data as of October 1, 2026).