Public water system · MO1010118
ActiveButler Pws
At a glance
Butler Pws (PWSID MO1010118) is an active community water system in Bates County, Missouri. It reports serving 4,219 people through 2,119 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, one is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,219
Service connections
2,119
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Butler Pws compare with other water systems in Bates County?
By EPA's size categories, Butler Pws is a medium system (3,301 to 10,000 people). Bates County has 15 active public water systems, and Butler Pws is the largest of them by population served. Its population served is about 3.5 times the county average of 1,194 people per system, and accounts for 24% 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 Butler Pws is about 37% 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 Butler Pws?
EPA lists Butler 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 Butler Pws have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2025. The violations listed here began between January 1994 and October 2025. By type: 10 monitoring and reporting, 1 reporting and 1 required treatment not met. The contaminants or rules involved are Lead and Copper Rule, Lead and Copper Rule Revisions, Surface Water Treatment Rule and Chlorobenzene. EPA lists 10 as resolved and 2 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 |
|---|---|---|---|---|
| 2025-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 1998-09-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | 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.
Butler Pws: frequently asked questions
Who runs Butler Pws?
Butler Pws (PWSID MO1010118) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Butler Pws serve?
Butler Pws reports serving 4,219 people through 2,119 service connections in Bates County, Missouri.
Where does Butler 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 Butler Pws have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 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 Butler 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, one is health-based, and the most recent began in October 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 Butler Pws' water quality report?
As a community water system, Butler 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 |
|---|---|---|---|---|
| Bates County Pwsd 5 | Bates | 2,690 | Community | Purchased surface water |
| Bates County Pwsd 4 | Bates + 1 more | 2,348 | Community | Purchased surface water |
| Adrian Pws | Bates | 1,635 | Community | 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, “Butler Pws, PWSID MO1010118, Missouri”, https://aquacensus.com/water-systems/missouri/butler-pws-mo1010118 (data as of October 1, 2026).