Public water system · MO3024085
ActiveCallaway 2 Water District
At a glance
Callaway 2 Water District (PWSID MO3024085) is an active community water system in Callaway County, Missouri. It reports serving 13,080 people through 5,745 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in October 2003.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
13,080
Service connections
5,745
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Callaway 2 Water District compare with other water systems in Callaway County?
By EPA's size categories, Callaway 2 Water District is a large system (10,001 to 100,000 people). Callaway County has 14 active public water systems, and Callaway 2 Water District is the largest of them by population served. Its population served is about 4.6 times the county average of 2,853 people per system, and accounts for 33% 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 community water system reports serving 6,703 people, so Callaway 2 Water District is about twice 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 Callaway 2 Water District?
EPA lists Callaway 2 Water District 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. 8 of the 14 active systems in Callaway County (57%) are also owned by a local government.
Does Callaway 2 Water District have drinking water violations?
EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in October 2003. The violations listed here began between July 1992 and October 2003. By type: 9 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (10 of them). EPA lists 10 as resolved and 1 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 |
|---|---|---|---|---|
| 2003-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 1993-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1992-07-20 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 11 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.
Callaway 2 Water District: frequently asked questions
Who runs Callaway 2 Water District?
Callaway 2 Water District (PWSID MO3024085) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Callaway 2 Water District serve?
Callaway 2 Water District reports serving 13,080 people through 5,745 service connections in Callaway County, Missouri.
Where does Callaway 2 Water District 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 Callaway 2 Water District have any drinking water violations?
EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in October 2003. 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 Callaway 2 Water District'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 11 violations for this system; 9 are health-based, and the most recent began in October 2003. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Callaway 2 Water District's water quality report?
As a community water system, Callaway 2 Water District 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 Callaway County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| 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 |
| Ameren Missouri Callaway Energy Center | Callaway | 750 | Non-transient non-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, “Callaway 2 Water District, PWSID MO3024085, Missouri”, https://aquacensus.com/water-systems/missouri/callaway-2-water-district-mo3024085 (data as of October 1, 2026).