Public water system · MO1010001
ActiveAdrian Pws
At a glance
Adrian Pws (PWSID MO1010001) is an active community water system in Bates County, Missouri. It reports serving 1,635 people through 731 service connections. Its primary water source is surface water, 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 July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,635
Service connections
731
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Adrian Pws compare with other water systems in Bates County?
By EPA's size categories, Adrian Pws is a small system (501 to 3,300 people). Bates County has 15 active public water systems, and Adrian Pws is the 4th-largest of them by population served. Its population served is about 37% above the county average of 1,194 people per system, and accounts for 9.1% of the 17,912 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 Adrian Pws 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 60 Missouri systems (2%) list surface water as their primary source.
Who owns and regulates Adrian Pws?
EPA lists Adrian 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. 15 of the 15 active systems in Bates County (100%) are also owned by a local government.
Does Adrian Pws have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025. The violations listed here began between October 2023 and July 2025. By type: 10 monitoring and reporting, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (2 of them). EPA lists 11 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 |
| 2025-02-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2025-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2025-02-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Simazinecode 2037 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Atrazinecode 2050 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Alachlor (Lasso)code 2051 | No | Resolved |
| 2024-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | 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.
Adrian Pws: frequently asked questions
Who runs Adrian Pws?
Adrian Pws (PWSID MO1010001) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Adrian Pws serve?
Adrian Pws reports serving 1,635 people through 731 service connections in Bates County, Missouri.
Where does Adrian Pws get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Adrian Pws 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 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 Adrian 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, none is 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 Adrian Pws' water quality report?
As a community water system, Adrian 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 Bates County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Butler Pws | Bates | 4,219 | Community | Surface water |
| Bates County Pwsd 5 | Bates | 2,690 | Community | Purchased surface water |
| Bates County Pwsd 4 | Bates + 1 more | 2,348 | Community | Purchased surface water |
| Bates County Pwsd 6 | Bates | 1,613 | Community | Purchased surface water |
| Rich Hill Pws | Bates | 1,400 | Community | Surface water |
| Cass Bates County Pwsd 12 | Bates + 1 more | 1,335 | Community | Purchased 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, “Adrian Pws, PWSID MO1010001, Missouri”, https://aquacensus.com/water-systems/missouri/adrian-pws-mo1010001 (data as of October 1, 2026).