Public water system · MO4036026
ActiveLiberty Utilities Oakbrier Estates
At a glance
Liberty Utilities Oakbrier Estates (PWSID MO4036026) is an active community water system in Butler County, Missouri. It reports serving 143 people through 58 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in July 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
143
Service connections
58
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Liberty Utilities Oakbrier Estates compare with other water systems in Butler County?
By EPA's size categories, Liberty Utilities Oakbrier Estates is a very small system (500 people or fewer). Butler County has 14 active public water systems. Its population served is well below the county average of 2,566 people per system, and accounts for 0.4% of the 35,928 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 Liberty Utilities Oakbrier 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 Liberty Utilities Oakbrier Estates?
EPA lists Liberty Utilities Oakbrier 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. 5 of the 14 active systems in Butler County (36%) are also privately owned.
Does Liberty Utilities Oakbrier Estates have drinking water violations?
EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in July 2019. The violations listed here began between April 1993 and July 2019. By type: 6 contaminant level above the legal limit, 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 8 as resolved and 2 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. 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 |
|---|---|---|---|---|
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Archived |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Archived |
| 1995-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
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.
Liberty Utilities Oakbrier Estates: frequently asked questions
Who runs Liberty Utilities Oakbrier Estates?
Liberty Utilities Oakbrier Estates (PWSID MO4036026) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Liberty Utilities Oakbrier Estates serve?
Liberty Utilities Oakbrier Estates reports serving 143 people through 58 service connections in Butler County, Missouri.
Where does Liberty Utilities Oakbrier 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 Liberty Utilities Oakbrier Estates have any drinking water violations?
EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in July 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 Liberty Utilities Oakbrier 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. EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in July 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Liberty Utilities Oakbrier Estates' water quality report?
As a community water system, Liberty Utilities Oakbrier 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 Butler County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Poplar Bluff Pws | Butler | 17,043 | Community | Surface water |
| Butler County Pwsd 1 | Butler | 12,000 | Community | Groundwater |
| Butler County Pwsd 3 | Butler | 2,600 | Community | Groundwater |
| Butler County Pwsd 2 | Butler | 1,625 | Community | Groundwater |
| Neelyville Pws | Butler | 485 | Community | Purchased groundwater |
| Butler County Pwsd 104 | Butler | 475 | Community | Purchased groundwater |
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, “Liberty Utilities Oakbrier Estates, PWSID MO4036026, Missouri”, https://aquacensus.com/water-systems/missouri/liberty-utilities-oakbrier-estates-mo4036026 (data as of October 1, 2026).