Public water system · MO5010138
ActiveCarl Junction Pws
At a glance
Carl Junction Pws (PWSID MO5010138) is an active community water system in Jasper County, Missouri. It reports serving 8,142 people through 3,540 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,142
Service connections
3,540
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Carl Junction Pws compare with other water systems in Jasper County?
By EPA's size categories, Carl Junction Pws is a medium system (3,301 to 10,000 people). Jasper County has 39 active public water systems, and Carl Junction Pws is the 5th-largest of them by population served. Its population served is about 124% above the county average of 3,638 people per system, and accounts for 5.7% of the 141,893 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 Carl Junction Pws is about 21% 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 Carl Junction Pws?
EPA lists Carl Junction Pws 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. 16 of the 39 active systems in Jasper County (41%) are also owned by a local government.
Does Carl Junction Pws have drinking water violations?
EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in July 2025. The violations listed here began between April 1997 and July 2025. By type: 4 contaminant level above the legal limit, 1 reporting, 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) (5 of them). EPA lists 7 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2023-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1998-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1997-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Carl Junction Pws: frequently asked questions
Who runs Carl Junction Pws?
Carl Junction Pws (PWSID MO5010138) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Carl Junction Pws serve?
Carl Junction Pws reports serving 8,142 people through 3,540 service connections in Jasper County, Missouri.
Where does Carl Junction Pws 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 Carl Junction Pws have any drinking water violations?
EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in July 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 Carl Junction Pws' 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; 4 are health-based, and the most recent began in July 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 Carl Junction Pws' water quality report?
As a community water system, Carl Junction Pws 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 Jasper County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mo American Joplin | Jasper | 73,728 | Community | Surface water |
| Carthage Pws | Jasper | 14,600 | Community | Groundwater |
| Webb City Pws | Jasper | 13,404 | Community | Purchased surface water |
| Barton Dade Cedar Jasp Countycons Pwsd 1 | Jasper + 3 more | 9,523 | Community | Groundwater |
| Jasper County Pwsd 1 | Jasper | 5,500 | Community | Groundwater |
| Jasper County Pwsd 2 | Jasper | 3,383 | 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, “Carl Junction Pws, PWSID MO5010138, Missouri”, https://aquacensus.com/water-systems/missouri/carl-junction-pws-mo5010138 (data as of October 1, 2026).