Public water system · MO2010463
ActiveLewistown Pws
At a glance
Lewistown Pws (PWSID MO2010463) is an active community water system in Lewis County, Missouri. It reports serving 580 people through 292 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
580
Service connections
292
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Lewistown Pws compare with other water systems in Lewis County?
By EPA's size categories, Lewistown Pws is a small system (501 to 3,300 people). Lewis County has 5 active public water systems, and Lewistown Pws is the 5th-largest of them by population served. Its population served is about 59% below the county average of 1,403 people per system, and accounts for 8.3% of the 7,015 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 Lewistown 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 Lewistown Pws?
EPA lists Lewistown 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. 5 of the 5 active systems in Lewis County (100%) are also owned by a local government.
Does Lewistown Pws have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between December 2002 and July 2025. By type: 3 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 3 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 |
| 2015-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 4 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.
Lewistown Pws: frequently asked questions
Who runs Lewistown Pws?
Lewistown Pws (PWSID MO2010463) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Lewistown Pws serve?
Lewistown Pws reports serving 580 people through 292 service connections in Lewis County, Missouri.
Where does Lewistown 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 Lewistown Pws have any drinking water violations?
EPA's records list 4 violations for this system; 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 Lewistown 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 4 violations for this system; 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 Lewistown Pws' water quality report?
As a community water system, Lewistown 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 Lewis County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Canton Pws | Lewis | 3,200 | Community | Groundwater |
| Lewis County Pwsd 1 | Lewis | 1,700 | Community | Purchased surface water |
| Lagrange Pws | Lewis | 875 | Community | Groundwater |
| La Belle Pws | Lewis | 660 | Community | Purchased surface water |
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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, “Lewistown Pws, PWSID MO2010463, Missouri”, https://aquacensus.com/water-systems/missouri/lewistown-pws-mo2010463 (data as of October 1, 2026).