Public water system · MO1010833
ActiveMo American Warrensburg
At a glance
Mo American Warrensburg (PWSID MO1010833) is an active community water system in Johnson County, Missouri. It reports serving 18,500 people through 8,144 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in May 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
18,500
Service connections
8,144
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mo American Warrensburg compare with other water systems in Johnson County?
By EPA's size categories, Mo American Warrensburg is a large system (10,001 to 100,000 people). Johnson County has 15 active public water systems, and Mo American Warrensburg is the largest of them by population served. Its population served is about 4.8 times the county average of 3,883 people per system, and accounts for 32% of the 58,237 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 Mo American Warrensburg is about 176% above 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 Mo American Warrensburg?
EPA lists Mo American Warrensburg 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. 4 of the 15 active systems in Johnson County (27%) are also privately owned.
Does Mo American Warrensburg have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in May 2017. By type: 1 public notice, recordkeeping or other. The contaminant or rule involved is Groundwater Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2017-05-20 | Public notice, recordkeeping or otherFailure to Consult with State · code 20 | Groundwater Rulecode 0700 | No | Resolved |
The one violation in EPA's records.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.
Mo American Warrensburg: frequently asked questions
Who runs Mo American Warrensburg?
Mo American Warrensburg (PWSID MO1010833) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Mo American Warrensburg serve?
Mo American Warrensburg reports serving 18,500 people through 8,144 service connections in Johnson County, Missouri.
Where does Mo American Warrensburg 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 Mo American Warrensburg have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in May 2017. 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 Mo American Warrensburg'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 one violation for this system; it is not health-based, and the most recent began in May 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Mo American Warrensburg's water quality report?
As a community water system, Mo American Warrensburg 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 Johnson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Johnson County Pwsd 2 | Johnson | 12,490 | Community | Groundwater |
| Whiteman Air Base | Johnson | 10,106 | Community | Groundwater |
| Johnson County Pwsd 3 | Johnson | 4,700 | Community | Groundwater |
| Johnson County Pwsd 1 | Johnson | 3,730 | Community | Groundwater |
| Knob Noster Pws | Johnson | 2,863 | Community | Groundwater |
| Holden Pws | Johnson | 2,683 | Community | Surface water |
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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, “Mo American Warrensburg, PWSID MO1010833, Missouri”, https://aquacensus.com/water-systems/missouri/mo-american-warrensburg-mo1010833 (data as of October 1, 2026).