Public water system · MO3024163
ActiveCole County Pwsd 4
At a glance
Cole County Pwsd 4 (PWSID MO3024163) is an active community water system in Cole County, Missouri. It reports serving 7,568 people through 1,377 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,568
Service connections
1,377
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cole County Pwsd 4 compare with other water systems in Cole County?
By EPA's size categories, Cole County Pwsd 4 is a medium system (3,301 to 10,000 people). Cole County has 17 active public water systems, and Cole County Pwsd 4 is the 4th-largest of them by population served. Its population served is about 74% above the county average of 4,341 people per system, and accounts for 10% of the 73,799 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 Cole County Pwsd 4 is about 13% 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 Cole County Pwsd 4?
EPA lists Cole County Pwsd 4 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 17 active systems in Cole County (47%) are also owned by a local government.
Does Cole County Pwsd 4 have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in December 2025. The violations listed here began between August 2001 and December 2025. By type: 9 contaminant level above the legal limit, 1 monitoring, 1 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (10 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2025-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2005-11-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2005-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
The 12 most recent 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.
Cole County Pwsd 4: frequently asked questions
Who runs Cole County Pwsd 4?
Cole County Pwsd 4 (PWSID MO3024163) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Cole County Pwsd 4 serve?
Cole County Pwsd 4 reports serving 7,568 people through 1,377 service connections in Cole County, Missouri.
Where does Cole County Pwsd 4 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 Cole County Pwsd 4 have any drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in December 2025. 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 Cole County Pwsd 4'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. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in December 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Cole County Pwsd 4's water quality report?
As a community water system, Cole County Pwsd 4 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 Cole County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mo American Jefferson City District | Cole | 30,075 | Community | Surface water |
| Cole County Pwsd 1 | Cole | 16,548 | Community | Groundwater |
| Cole County Pwsd 2 | Cole | 13,107 | Community | Groundwater |
| Cole County Pwsd 3 | Cole | 2,000 | Community | Groundwater |
| Mo American Wardsville | Cole | 1,506 | Community | Groundwater |
| Russellville Pws | Cole | 800 | 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, “Cole County Pwsd 4, PWSID MO3024163, Missouri”, https://aquacensus.com/water-systems/missouri/cole-county-pwsd-4-mo3024163 (data as of October 1, 2026).