Public water system · MO3031338
ActiveJohnson Bay Subdivision
At a glance
Johnson Bay Subdivision (PWSID MO3031338) is an active community water system in Morgan County, Missouri. It reports serving 126 people through 60 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
126
Service connections
60
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Johnson Bay Subdivision compare with other water systems in Morgan County?
By EPA's size categories, Johnson Bay Subdivision is a very small system (500 people or fewer). Morgan County has 68 active public water systems. Its population served is about 34% below the county average of 190 people per system, and accounts for 1% of the 12,946 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 Johnson Bay Subdivision 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 Johnson Bay Subdivision?
EPA lists Johnson Bay Subdivision 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. 60 of the 68 active systems in Morgan County (88%) are also privately owned.
Does Johnson Bay Subdivision have drinking water violations?
EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in October 2024. The violations listed here began between January 2003 and October 2024. By type: 4 monitoring and reporting, 3 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-10-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2014-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-06-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
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.
Johnson Bay Subdivision: frequently asked questions
Who runs Johnson Bay Subdivision?
Johnson Bay Subdivision (PWSID MO3031338) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Johnson Bay Subdivision serve?
Johnson Bay Subdivision reports serving 126 people through 60 service connections in Morgan County, Missouri.
Where does Johnson Bay Subdivision 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 Johnson Bay Subdivision have any drinking water violations?
EPA's records list 8 violations for this system; 3 are 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 Johnson Bay Subdivision'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; 3 are 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 Johnson Bay Subdivision's water quality report?
As a community water system, Johnson Bay Subdivision 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 Morgan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Versailles Pws | Morgan | 2,539 | Community | Groundwater |
| Morgan County Pwsd # 2 | Morgan | 1,298 | Community | Groundwater |
| Stover Pws | Morgan | 1,094 | Community | Groundwater |
| Laurie Pws | Morgan | 990 | Community | Groundwater |
| Cross Pointe Camp and Retreat Center | Morgan | 950 | Non-transient non-community | Groundwater |
| Camp Sabra | Morgan | 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, “Johnson Bay Subdivision, PWSID MO3031338, Missouri”, https://aquacensus.com/water-systems/missouri/johnson-bay-subdivision-mo3031338 (data as of October 1, 2026).