Public water system · MO4010710
ActiveSte Genevieve Pws
At a glance
Ste Genevieve Pws (PWSID MO4010710) is an active community water system in Ste. Genevieve County, Missouri. It reports serving 4,999 people through 1,967 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, 2 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,999
Service connections
1,967
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ste Genevieve Pws compare with other water systems in Ste. Genevieve County?
By EPA's size categories, Ste Genevieve Pws is a medium system (3,301 to 10,000 people). Ste. Genevieve County has 17 active public water systems, and Ste Genevieve Pws is the largest of them by population served. Its population served is about 6.2 times the county average of 812 people per system, and accounts for 36% of the 13,798 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 Ste Genevieve Pws is about 25% 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 Ste Genevieve Pws?
EPA lists Ste Genevieve 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. 5 of the 17 active systems in Ste. Genevieve County (29%) are also owned by a local government.
Does Ste Genevieve Pws have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025. The violations listed here began between July 2009 and July 2025. By type: 5 public notice, recordkeeping or other, 4 monitoring and reporting, 1 monitoring, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (4 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 |
|---|---|---|---|---|
| 2025-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2024-11-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-02-29 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2009-07-01 | 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.
Ste Genevieve Pws: frequently asked questions
Who runs Ste Genevieve Pws?
Ste Genevieve Pws (PWSID MO4010710) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Ste Genevieve Pws serve?
Ste Genevieve Pws reports serving 4,999 people through 1,967 service connections in Ste. Genevieve County, Missouri.
Where does Ste Genevieve 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 Ste Genevieve Pws have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 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 Ste Genevieve 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. Of the 12 most recent violations in EPA's records, 2 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 Ste Genevieve Pws' water quality report?
As a community water system, Ste Genevieve 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 Ste. Genevieve County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ste Genevieve County Pwsd 1 Sc | Ste. Genevieve | 3,718 | Community | Groundwater |
| Ste Genevieve County Pwsd 1 North | Ste. Genevieve | 1,287 | Community | Groundwater |
| Grayhawk Water | Ste. Genevieve | 750 | Community | Groundwater |
| Lake Forest Estates | Ste. Genevieve | 650 | Community | Groundwater |
| Bloomsdale Pws | Ste. Genevieve | 639 | Community | Groundwater |
| Lake Seven Falls Assn Inc. | Ste. Genevieve | 475 | 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, “Ste Genevieve Pws, PWSID MO4010710, Missouri”, https://aquacensus.com/water-systems/missouri/ste-genevieve-pws-mo4010710 (data as of October 1, 2026).