Public water system · MO2024335
ActiveLewis County Pwsd 1
At a glance
Lewis County Pwsd 1 (PWSID MO2024335) is an active community water system in Lewis County, Missouri. It reports serving 1,700 people through 725 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; 1 is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,700
Service connections
725
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Lewis County Pwsd 1 compare with other water systems in Lewis County?
By EPA's size categories, Lewis County Pwsd 1 is a small system (501 to 3,300 people). Lewis County has 5 active public water systems, and Lewis County Pwsd 1 is the 2nd-largest of them by population served. Its population served is about 21% above the county average of 1,403 people per system, and accounts for 24% 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 Lewis County Pwsd 1 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 Lewis County Pwsd 1?
EPA lists Lewis County Pwsd 1 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 Lewis County Pwsd 1 have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in July 2025. The violations listed here began between July 1993 and July 2025. By type: 2 reporting, 1 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 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 |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2021-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1993-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | 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.
Lewis County Pwsd 1: frequently asked questions
Who runs Lewis County Pwsd 1?
Lewis County Pwsd 1 (PWSID MO2024335) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Lewis County Pwsd 1 serve?
Lewis County Pwsd 1 reports serving 1,700 people through 725 service connections in Lewis County, Missouri.
Where does Lewis County Pwsd 1 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 Lewis County Pwsd 1 have any drinking water violations?
EPA's records list 4 violations for this system; 1 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 Lewis County Pwsd 1'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 4 violations for this system; 1 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 Lewis County Pwsd 1's water quality report?
As a community water system, Lewis County Pwsd 1 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 |
| Lagrange Pws | Lewis | 875 | Community | Groundwater |
| La Belle Pws | Lewis | 660 | Community | Purchased surface water |
| Lewistown Pws | Lewis | 580 | 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, “Lewis County Pwsd 1, PWSID MO2024335, Missouri”, https://aquacensus.com/water-systems/missouri/lewis-county-pwsd-1-mo2024335 (data as of October 1, 2026).