Public water system · MO3182219
ActiveAmeren Missouri Callaway Energy Center
At a glance
Ameren Missouri Callaway Energy Center (PWSID MO3182219) is an active non-transient non-community water system in Callaway County, Missouri. It reports serving 750 people through 21 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
750
Service connections
21
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Ameren Missouri Callaway Energy Center compare with other water systems in Callaway County?
By EPA's size categories, Ameren Missouri Callaway Energy Center is a small system (501 to 3,300 people). Callaway County has 14 active public water systems, and Ameren Missouri Callaway Energy Center is the 6th-largest of them by population served. Its population served is well below the county average of 2,853 people per system, and accounts for 1.9% of the 39,944 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Ameren Missouri Callaway Energy Center is about 74% above that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Missouri has 228 active non-transient non-community water systems, 7.7% 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 Ameren Missouri Callaway Energy Center?
EPA lists Ameren Missouri Callaway Energy Center 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. 6 of the 14 active systems in Callaway County (43%) are also privately owned.
Does Ameren Missouri Callaway Energy Center have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2020. The violations listed here began between January 2016 and October 2020. By type: 3 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule, Total trihalomethanes (TTHM) and Haloacetic acids (HAA5). EPA lists 3 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 |
|---|---|---|---|---|
| 2020-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
All 3 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.
Ameren Missouri Callaway Energy Center: frequently asked questions
Who runs Ameren Missouri Callaway Energy Center?
Ameren Missouri Callaway Energy Center (PWSID MO3182219) is a non-transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Ameren Missouri Callaway Energy Center serve?
Ameren Missouri Callaway Energy Center reports serving 750 people through 21 service connections in Callaway County, Missouri.
Where does Ameren Missouri Callaway Energy Center 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 Ameren Missouri Callaway Energy Center have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2020. 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 Ameren Missouri Callaway Energy Center'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 3 violations for this system; none is health-based, and the most recent began in October 2020. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Ameren Missouri Callaway Energy Center's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ameren Missouri Callaway Energy Center is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Callaway County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Callaway 2 Water District | Callaway | 13,080 | Community | Groundwater |
| Fulton Pws | Callaway | 12,600 | Community | Groundwater |
| Callaway County Pwsd 1 | Callaway | 9,840 | Community | Groundwater |
| South Callaway County R Ii Schools | Callaway | 1,100 | Non-transient non-community | Groundwater |
| Auxvasse Pws | Callaway | 1,001 | Community | Groundwater |
| New Bloomfield Pws | Callaway | 669 | 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, “Ameren Missouri Callaway Energy Center, PWSID MO3182219, Missouri”, https://aquacensus.com/water-systems/missouri/ameren-missouri-callaway-energy-center-mo3182219 (data as of October 1, 2026).