Public water system · MO5010144
ActiveCassville Pws
At a glance
Cassville Pws (PWSID MO5010144) is an active community water system in Barry County, Missouri. It reports serving 3,290 people through 1,604 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,290
Service connections
1,604
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cassville Pws compare with other water systems in Barry County?
By EPA's size categories, Cassville Pws is a small system (501 to 3,300 people). Barry County has 88 active public water systems, and Cassville Pws is the 2nd-largest of them by population served. Its population served is about 9.6 times the county average of 341 people per system, and accounts for 11% of the 30,034 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 Cassville Pws is about half of 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 Cassville Pws?
EPA lists Cassville 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. 13 of the 88 active systems in Barry County (15%) are also owned by a local government.
Does Cassville Pws have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2014. By type: 1 public notice, recordkeeping or other. The contaminant or rule involved is Consumer Confidence Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2014-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
The one violation in EPA's records.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.
Cassville Pws: frequently asked questions
Who runs Cassville Pws?
Cassville Pws (PWSID MO5010144) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Cassville Pws serve?
Cassville Pws reports serving 3,290 people through 1,604 service connections in Barry County, Missouri.
Where does Cassville 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 Cassville Pws have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2014. 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 Cassville 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. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Cassville Pws' water quality report?
As a community water system, Cassville 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 Barry County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Monett Pws | Barry | 9,789 | Community | Groundwater |
| Southwest Rural Water District 1 | Barry | 2,700 | Community | Groundwater |
| Purdy Pws | Barry | 1,100 | Community | Groundwater |
| Georges Processing Inc. | Barry | 1,000 | Non-transient non-community | Groundwater |
| Harter House of Shell Knob | Barry | 900 | Transient non-community | Groundwater |
| Seligman Pws | Barry | 890 | 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, “Cassville Pws, PWSID MO5010144, Missouri”, https://aquacensus.com/water-systems/missouri/cassville-pws-mo5010144 (data as of October 1, 2026).