Public water system · MO4036309
ActiveJohns Branch Water Co
At a glance
Johns Branch Water Co (PWSID MO4036309) is an active community water system in Wayne County, Missouri. It reports serving 75 people through 29 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; none is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
29
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Johns Branch Water Co compare with other water systems in Wayne County?
By EPA's size categories, Johns Branch Water Co is a very small system (500 people or fewer). Wayne County has 31 active public water systems. Its population served is well below the county average of 293 people per system, and accounts for 0.8% 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 Johns Branch Water Co 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 Johns Branch Water Co?
EPA lists Johns Branch Water Co 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. 16 of the 31 active systems in Wayne County (52%) are also privately owned.
Does Johns Branch Water Co have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in October 2024. The violations listed here began between January 2008 and October 2024. By type: 5 monitoring and reporting, 2 public notice, recordkeeping or other and 1 reporting. The contaminant or rule involved most often is Consumer Confidence Rule (2 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2021-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | 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 |
All 8 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.
Johns Branch Water Co: frequently asked questions
Who runs Johns Branch Water Co?
Johns Branch Water Co (PWSID MO4036309) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Johns Branch Water Co serve?
Johns Branch Water Co reports serving 75 people through 29 service connections in Wayne County, Missouri.
Where does Johns Branch Water Co 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 Johns Branch Water Co have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in October 2024. 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 Johns Branch Water Co'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 8 violations for this system; none is health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Johns Branch Water Co's water quality report?
As a community water system, Johns Branch Water Co 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 & Butler County Pwsd 4 | Wayne | 1,400 | Community | Groundwater |
| 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 |
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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, “Johns Branch Water Co, PWSID MO4036309, Missouri”, https://aquacensus.com/water-systems/missouri/johns-branch-water-co-mo4036309 (data as of October 1, 2026).