Public water system · MO5031481
ActiveOak Brook Estates
At a glance
Oak Brook Estates (PWSID MO5031481) is an active community water system in Taney County, Missouri. It reports serving 40 people through 16 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, none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40
Service connections
16
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Oak Brook Estates compare with other water systems in Taney County?
By EPA's size categories, Oak Brook Estates is a very small system (500 people or fewer). Taney County has 112 active public water systems. Its population served is well below the county average of 668 people per system, and accounts for less than 0.1% of the 74,822 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active community water system reports serving 6,703 people, so Oak Brook Estates 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. Missouri has 1,612 active community water systems, 55% of the state's 2,943 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,521 Missouri systems (86%) list groundwater as their primary source.
Who owns and regulates Oak Brook Estates?
EPA lists Oak Brook Estates as privately owned. The MO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 97 of the 112 active systems in Taney County (87%) are also privately owned.
Does Oak Brook Estates have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025. The violations listed here began between July 2021 and July 2025. By type: 5 public notice, recordkeeping or other, 3 monitoring, 3 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 9 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 | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-10-01 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600 | No | Resolved |
| 2021-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2021-08-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2021-08-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
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.
Oak Brook Estates: frequently asked questions
Who runs Oak Brook Estates?
Oak Brook Estates (PWSID MO5031481) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Oak Brook Estates serve?
Oak Brook Estates reports serving 40 people through 16 service connections in Taney County, Missouri.
Where does Oak Brook Estates 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 Oak Brook Estates have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is 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 Oak Brook Estates' 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, none is 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 MO state drinking water program.
Where can I find Oak Brook Estates' water quality report?
As a community water system, Oak Brook Estates 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 Taney County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Branson Pws | Taney | 12,640 | Community | Surface water |
| Mo American Tri State | Taney | 8,680 | Community | Groundwater |
| Taney County Pwsd 2 | Taney | 6,250 | Community | Groundwater |
| Big Cedar Lodge Resort | Taney | 6,067 | Non-transient non-community | Groundwater |
| Taney County Pwsd 3 | Taney | 6,000 | Community | Groundwater |
| Hollister Pws | Taney | 4,426 | 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, “Oak Brook Estates, PWSID MO5031481, Missouri”, https://aquacensus.com/water-systems/missouri/oak-brook-estates-mo5031481 (data as of October 1, 2026).