Public water system · MO4021311
ActiveWayne & Butler County Pwsd 4
At a glance
Wayne & Butler County Pwsd 4 (PWSID MO4021311) is an active community water system in Wayne County, Missouri. It reports serving 1,400 people through 674 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in May 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,400
Service connections
674
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Wayne & Butler County Pwsd 4 compare with other water systems in Wayne County?
By EPA's size categories, Wayne & Butler County Pwsd 4 is a small system (501 to 3,300 people). Wayne County has 31 active public water systems, and Wayne & Butler County Pwsd 4 is the 2nd-largest of them by population served. Its population served is about 4.8 times the county average of 293 people per system, and accounts for 15% of the 9,096 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 Wayne & Butler County Pwsd 4 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 Wayne & Butler County Pwsd 4?
EPA lists Wayne & Butler County Pwsd 4 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. 7 of the 31 active systems in Wayne County (23%) are also owned by a local government.
Does Wayne & Butler County Pwsd 4 have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in May 2014. The violations listed here began between November 2004 and May 2014. By type: 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 4 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2014-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2004-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 4 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.
Wayne & Butler County Pwsd 4: frequently asked questions
Who runs Wayne & Butler County Pwsd 4?
Wayne & Butler County Pwsd 4 (PWSID MO4021311) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Wayne & Butler County Pwsd 4 serve?
Wayne & Butler County Pwsd 4 reports serving 1,400 people through 674 service connections in Wayne County, Missouri.
Where does Wayne & Butler County Pwsd 4 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 Wayne & Butler County Pwsd 4 have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in May 2014. 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 Wayne & Butler County Pwsd 4'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 4 violations for this system; none is health-based, and the most recent began in May 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Wayne & Butler County Pwsd 4's water quality report?
As a community water system, Wayne & Butler County Pwsd 4 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 Wayne County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Piedmont Pws | Wayne | 1,987 | Community | Surface water |
| Wayne County Pwsd 2 | Wayne | 950 | Community | Groundwater |
| Otahki Lake Cabins and Campground | Wayne | 500 | Transient non-community | Groundwater |
| Greenville Pws | Wayne | 497 | Community | Groundwater |
| Usace Camp Semo Wappapello | Wayne | 400 | Transient non-community | Groundwater |
| Community Water System | Wayne | 378 | 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, “Wayne & Butler County Pwsd 4, PWSID MO4021311, Missouri”, https://aquacensus.com/water-systems/missouri/wayne-butler-county-pwsd-4-mo4021311 (data as of October 1, 2026).