Public water system · MO5021168
ActiveMc Donald County Pwsd 3
At a glance
Mc Donald County Pwsd 3 (PWSID MO5021168) is an active community water system in McDonald County, Missouri. It reports serving 600 people through 358 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
600
Service connections
358
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mc Donald County Pwsd 3 compare with other water systems in McDonald County?
By EPA's size categories, Mc Donald County Pwsd 3 is a small system (501 to 3,300 people). McDonald County has 26 active public water systems. Its population served is about 12% above the county average of 535 people per system, and accounts for 4.3% of the 13,921 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 Mc Donald County Pwsd 3 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 Mc Donald County Pwsd 3?
EPA lists Mc Donald County Pwsd 3 as owned by a local government. 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. 8 of the 26 active systems in McDonald County (31%) are also owned by a local government.
Does Mc Donald County Pwsd 3 have drinking water violations?
Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in July 2025. The violations listed here began between October 2010 and July 2025. By type: 8 contaminant level above the legal limit, 2 monitoring and reporting, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Combined Radium (-226 and -228) (4 of them). EPA lists 11 as resolved and 1 as unaddressed. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2013-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2012-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2012-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 2011-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2011-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 2011-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 2011-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2010-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-11-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2010-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 2010-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | 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.
Mc Donald County Pwsd 3: frequently asked questions
Who runs Mc Donald County Pwsd 3?
Mc Donald County Pwsd 3 (PWSID MO5021168) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Mc Donald County Pwsd 3 serve?
Mc Donald County Pwsd 3 reports serving 600 people through 358 service connections in McDonald County, Missouri.
Where does Mc Donald County Pwsd 3 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 Mc Donald County Pwsd 3 have any drinking water violations?
Of the 12 most recent violations in EPA's records, 8 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 Mc Donald County Pwsd 3'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, 8 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 MO state drinking water program.
Where can I find Mc Donald County Pwsd 3's water quality report?
As a community water system, Mc Donald County Pwsd 3 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 McDonald County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mc Donald County Pwsd 1 | McDonald | 2,481 | Community | Groundwater |
| Anderson Pws | McDonald | 1,961 | Community | Groundwater |
| Liberty Water Noel | McDonald | 1,832 | Community | Groundwater |
| Mc Donald County Pwsd 2 | McDonald | 1,500 | Community | Groundwater |
| Goodman Pws | McDonald | 1,250 | Community | Groundwater |
| Simmons Foods Inc. | McDonald | 1,100 | Non-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, “Mc Donald County Pwsd 3, PWSID MO5021168, Missouri”, https://aquacensus.com/water-systems/missouri/mc-donald-county-pwsd-3-mo5021168 (data as of October 1, 2026).