Public water system · IL1615170
ActiveCedar Brook Estates Subdivision
At a glance
Cedar Brook Estates Subdivision (PWSID IL1615170) is an active community water system in Rock Island County, Illinois. It reports serving 450 people through 80 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
450
Service connections
80
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cedar Brook Estates Subdivision compare with other water systems in Rock Island County?
By EPA's size categories, Cedar Brook Estates 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 0.3% 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 Cedar Brook Estates 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 Cedar Brook Estates Subdivision?
EPA lists Cedar Brook Estates 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 Cedar Brook Estates Subdivision have drinking water violations?
EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in July 2025. The violations listed here began between June 1977 and July 2025. By type: 5 monitoring and reporting, 3 required treatment not met and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (7 of them). EPA lists 7 as resolved, 2 as unaddressed and 1 as archived. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-04-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2023-01-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-07-01 | Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2008-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-07-01 | Required treatment not metWQP Entry Point/Tap Treatment Technique Non-Compliance · code 59 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2000-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1995-08-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1995-01-12 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1977-06-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 10 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.
Cedar Brook Estates Subdivision: frequently asked questions
Who runs Cedar Brook Estates Subdivision?
Cedar Brook Estates Subdivision (PWSID IL1615170) is a community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Cedar Brook Estates Subdivision serve?
Cedar Brook Estates Subdivision reports serving 450 people through 80 service connections in Rock Island County, Illinois.
Where does Cedar Brook Estates 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 Cedar Brook Estates Subdivision have any drinking water violations?
EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in July 2025. 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 Cedar Brook Estates 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 records list 10 violations for this system; 3 are health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Cedar Brook Estates Subdivision's water quality report?
As a community water system, Cedar Brook Estates 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, “Cedar Brook Estates Subdivision, PWSID IL1615170, Illinois”, https://aquacensus.com/water-systems/illinois/cedar-brook-estates-subdivision-il1615170 (data as of October 1, 2026).