Public water system · MO4024432
ActiveOregon County Pwsd 1
At a glance
Oregon County Pwsd 1 (PWSID MO4024432) is an active community water system in Oregon County, Missouri. It reports serving 900 people through 320 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, none is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
900
Service connections
320
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Oregon County Pwsd 1 compare with other water systems in Oregon County?
By EPA's size categories, Oregon County Pwsd 1 is a small system (501 to 3,300 people). Oregon County has 7 active public water systems, and Oregon County Pwsd 1 is the 3rd-largest of them by population served. Its population served is about 33% above the county average of 678 people per system, and accounts for 19% of the 4,746 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 Oregon County Pwsd 1 is well 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 Oregon County Pwsd 1?
EPA lists Oregon County Pwsd 1 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. 6 of the 7 active systems in Oregon County (86%) are also owned by a local government.
Does Oregon County Pwsd 1 have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024. The violations listed here began between January 2020 and October 2024. By type: 10 monitoring and reporting, 1 reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Lead and Copper Rule Revisions, Total trihalomethanes (TTHM), Haloacetic acids (HAA5) and Consumer Confidence Rule. EPA lists 8 as archived and 4 as resolved. 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. 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 |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Archived |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Archived |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Archived |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Archived |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Archived |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Archived |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Archived |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Archived |
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.
Oregon County Pwsd 1: frequently asked questions
Who runs Oregon County Pwsd 1?
Oregon County Pwsd 1 (PWSID MO4024432) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Oregon County Pwsd 1 serve?
Oregon County Pwsd 1 reports serving 900 people through 320 service connections in Oregon County, Missouri.
Where does Oregon County Pwsd 1 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 Oregon County Pwsd 1 have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024. 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 Oregon County Pwsd 1'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, none is health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Oregon County Pwsd 1's water quality report?
As a community water system, Oregon County Pwsd 1 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 Oregon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Thayer Pws | Oregon | 2,200 | Community | Groundwater |
| Alton Pws | Oregon | 1,000 | Community | Groundwater |
| Couch R 1 School | Oregon | 264 | Non-transient non-community | Groundwater |
| Koshkonong Pws | Oregon | 212 | Community | Groundwater |
| Oregon County Pwsd 2 | Oregon | 120 | Community | Groundwater |
| Usfs Greer Crossing | Oregon | 50 | Transient non-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, “Oregon County Pwsd 1, PWSID MO4024432, Missouri”, https://aquacensus.com/water-systems/missouri/oregon-county-pwsd-1-mo4024432 (data as of October 1, 2026).