Public water system · MO1024033
ActiveBates County Pwsd 4
At a glance
Bates County Pwsd 4 (PWSID MO1024033) is an active community water system serving Bates and Vernon counties, Missouri. It reports serving 2,348 people through 947 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,348
Service connections
947
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Bates County Pwsd 4 compare with other water systems in Missouri?
By EPA's size categories, Bates County Pwsd 4 is a small system (501 to 3,300 people). 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 Bates County Pwsd 4 is about 65% 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 179 Missouri systems (6.1%) list purchased surface water as their primary source.
Who owns and regulates Bates County Pwsd 4?
EPA lists Bates County Pwsd 4 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.
Does Bates County Pwsd 4 have drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in July 2025. The violations listed here began between May 1991 and July 2025. By type: 4 contaminant level above the legal limit, 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2025-07-03 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2009-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1991-11-07 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1991-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 7 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.
Bates County Pwsd 4: frequently asked questions
Who runs Bates County Pwsd 4?
Bates County Pwsd 4 (PWSID MO1024033) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Bates County Pwsd 4 serve?
Bates County Pwsd 4 reports serving 2,348 people through 947 service connections in Bates and Vernon counties, Missouri.
Where does Bates County Pwsd 4 get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Bates County Pwsd 4 have any drinking water violations?
EPA's records list 7 violations for this system; 4 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 Bates County Pwsd 4'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. EPA's records list 7 violations for this system; 4 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 Bates County Pwsd 4's water quality report?
As a community water system, Bates County Pwsd 4 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(the first county EPA lists for this system)
| 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 |
| 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, “Bates County Pwsd 4, PWSID MO1024033, Missouri”, https://aquacensus.com/water-systems/missouri/bates-county-pwsd-4-mo1024033 (data as of October 1, 2026).