Public water system · MO2010635
ActivePerry Pws
At a glance
Perry Pws (PWSID MO2010635) is an active community water system in Ralls County, Missouri. It reports serving 694 people through 406 service connections. Its primary water source is purchased surface water, 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 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
694
Service connections
406
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Perry Pws compare with other water systems in Ralls County?
By EPA's size categories, Perry Pws is a small system (501 to 3,300 people). Ralls County has 4 active public water systems, and Perry Pws is the 4th-largest of them by population served. Its population served is well below the county average of 3,953 people per system, and accounts for 4.4% of the 15,813 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 Perry 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. 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 Perry Pws?
EPA lists Perry 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. 4 of the 4 active systems in Ralls County (100%) are also owned by a local government.
Does Perry 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 2025. By type: 1 reporting. The contaminant or rule involved is Lead and Copper Rule Revisions. EPA lists 1 as unaddressed. 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 |
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.
Perry Pws: frequently asked questions
Who runs Perry Pws?
Perry Pws (PWSID MO2010635) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Perry Pws serve?
Perry Pws reports serving 694 people through 406 service connections in Ralls County, Missouri.
Where does Perry Pws 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 Perry 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 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 Perry 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 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 Perry Pws' water quality report?
As a community water system, Perry 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 Ralls County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ralls County Pwsd 1 | Ralls | 7,662 | Community | Groundwater |
| Cannon Pwsd 1 | Ralls | 6,482 | Community | Purchased surface water |
| New London Pws | Ralls | 975 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Perry Pws, PWSID MO2010635, Missouri”, https://aquacensus.com/water-systems/missouri/perry-pws-mo2010635 (data as of October 1, 2026).