Public water system · MO4010160
ActiveCharleston Pws
At a glance
Charleston Pws (PWSID MO4010160) is an active community water system in Mississippi County, Missouri. It reports serving 5,900 people through 1,450 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,900
Service connections
1,450
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Charleston Pws compare with other water systems in Mississippi County?
By EPA's size categories, Charleston Pws is a medium system (3,301 to 10,000 people). Mississippi County has 6 active public water systems, and Charleston Pws is the largest of them by population served. Its population served is about 170% above the county average of 2,182 people per system, and accounts for 45% of the 13,091 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 Charleston Pws is about 12% 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. 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 Charleston Pws?
EPA lists Charleston 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. 6 of the 6 active systems in Mississippi County (100%) are also owned by a local government.
Does Charleston Pws have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2021. The violations listed here began between September 1999 and July 2021. By type: 2 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (2 of them). EPA lists 2 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1999-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 3 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.
Charleston Pws: frequently asked questions
Who runs Charleston Pws?
Charleston Pws (PWSID MO4010160) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Charleston Pws serve?
Charleston Pws reports serving 5,900 people through 1,450 service connections in Mississippi County, Missouri.
Where does Charleston 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 Charleston Pws have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2021. 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 Charleston 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 3 violations for this system; 1 is health-based, and the most recent began in July 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Charleston Pws' water quality report?
As a community water system, Charleston 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 Mississippi County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mississippi County Pwsd 1 | Mississippi | 3,000 | Community | Purchased groundwater |
| East Prairie Pws | Mississippi | 2,964 | Community | Groundwater |
| Bertrand Pws | Mississippi | 733 | Community | Groundwater |
| Wyatt Pws | Mississippi | 319 | Community | Groundwater |
| Anniston Pws | Mississippi | 175 | 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, “Charleston Pws, PWSID MO4010160, Missouri”, https://aquacensus.com/water-systems/missouri/charleston-pws-mo4010160 (data as of October 1, 2026).