Public water system · AR0000005
ActiveSt Charles Waterworks
At a glance
St Charles Waterworks (PWSID AR0000005) is an active community water system in Arkansas County, Arkansas. It reports serving 326 people through 151 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; none is health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
326
Service connections
151
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does St Charles Waterworks compare with other water systems in Arkansas County?
By EPA's size categories, St Charles Waterworks is a very small system (500 people or fewer). Arkansas County has 10 active public water systems. Its population served is well below the county average of 2,873 people per system, and accounts for 1.1% of the 28,731 people reported by systems filed under the county. Across Arkansas, the 853 active systems average 3,592 people each. Nationally, the average active community water system reports serving 6,703 people, so St Charles Waterworks 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. Arkansas has 660 active community water systems, 77% of the state's 853 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 461 Arkansas systems (54%) list groundwater as their primary source.
Who owns and regulates St Charles Waterworks?
EPA lists St Charles Waterworks as owned by a local government. The AR state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 9 of the 10 active systems in Arkansas County (90%) are also owned by a local government.
Does St Charles Waterworks have drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in December 2025. The violations listed here began between December 2016 and December 2025. By type: 3 monitoring and reporting, 2 monitoring, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (4 of them). EPA lists 4 as resolved, 2 as archived 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. 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. 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 |
|---|---|---|---|---|
| 2025-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2025-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2025-11-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Unaddressed |
| 2018-08-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2017-05-01 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-12-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-12-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
All 7 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.
St Charles Waterworks: frequently asked questions
Who runs St Charles Waterworks?
St Charles Waterworks (PWSID AR0000005) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does St Charles Waterworks serve?
St Charles Waterworks reports serving 326 people through 151 service connections in Arkansas County, Arkansas.
Where does St Charles Waterworks 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 St Charles Waterworks have any drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in December 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 St Charles Waterworks' 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 7 violations for this system; none is health-based, and the most recent began in December 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find St Charles Waterworks' water quality report?
As a community water system, St Charles Waterworks 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 Arkansas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Grand Prairie Regional Water | Arkansas | 15,204 | Community | Groundwater |
| Stuttgart Waterworks | Arkansas | 7,393 | Community | Groundwater |
| Dewitt Waterworks | Arkansas | 3,208 | Community | Groundwater |
| Gillett Water Dept | Arkansas | 655 | Community | Groundwater |
| Northeast Dewitt Water Assoc | Arkansas | 610 | Community | Purchased groundwater |
| Humphrey Waterworks | Arkansas | 602 | 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, “St Charles Waterworks, PWSID AR0000005, Arkansas”, https://aquacensus.com/water-systems/arkansas/st-charles-waterworks-ar0000005 (data as of October 1, 2026).