Public water system · MO6010638
ActivePevely Pws
At a glance
Pevely Pws (PWSID MO6010638) is an active community water system in Jefferson County, Missouri. It reports serving 5,600 people through 1,950 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; none is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,600
Service connections
1,950
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Pevely Pws compare with other water systems in Jefferson County?
By EPA's size categories, Pevely Pws is a medium system (3,301 to 10,000 people). Jefferson County has 92 active public water systems. Its population served is about 175% above the county average of 2,034 people per system, and accounts for 3% of the 187,106 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 Pevely Pws is about 16% below 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 Pevely Pws?
EPA lists Pevely 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. 26 of the 92 active systems in Jefferson County (28%) are also owned by a local government.
Does Pevely Pws have drinking water violations?
EPA's records list 10 violations for this system; none is health-based, and the most recent began in January 2025. The violations listed here began between May 2004 and January 2025. By type: 5 monitoring and reporting, 4 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (4 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2025-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2022-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-08-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2009-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 10 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.
Pevely Pws: frequently asked questions
Who runs Pevely Pws?
Pevely Pws (PWSID MO6010638) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Pevely Pws serve?
Pevely Pws reports serving 5,600 people through 1,950 service connections in Jefferson County, Missouri.
Where does Pevely 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 Pevely Pws have any drinking water violations?
EPA's records list 10 violations for this system; none is health-based, and the most recent began in January 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 Pevely 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 10 violations for this system; none is health-based, and the most recent began in January 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 Pevely Pws' water quality report?
As a community water system, Pevely 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 Jefferson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Jefferson Co Cons Pwsd C 1 | Jefferson | 37,000 | Community | Purchased surface water |
| Jefferson County Pwsd 1 | Jefferson | 21,113 | Community | Purchased surface water |
| Jefferson County Pwsd 3 | Jefferson | 17,000 | Community | Purchased surface water |
| Jefferson County Pwsd 2 | Jefferson | 16,548 | Community | Surface water |
| Festus Pws | Jefferson | 13,000 | Community | Purchased groundwater under influence |
| Jefferson County Pwsd 10 | Jefferson | 10,000 | Community | Purchased 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, “Pevely Pws, PWSID MO6010638, Missouri”, https://aquacensus.com/water-systems/missouri/pevely-pws-mo6010638 (data as of October 1, 2026).