Public water system · AR0000375
ActiveOsceola Waterworks
At a glance
Osceola Waterworks (PWSID AR0000375) is an active community water system in Mississippi County, Arkansas. It reports serving 6,053 people through 2,779 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in April 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,053
Service connections
2,779
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Osceola Waterworks compare with other water systems in Mississippi County?
By EPA's size categories, Osceola Waterworks is a medium system (3,301 to 10,000 people). Mississippi County has 21 active public water systems, and Osceola Waterworks is the 2nd-largest of them by population served. Its population served is about 3.1 times the county average of 1,982 people per system, and accounts for 15% of the 41,629 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 Osceola Waterworks is roughly in line with 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 Osceola Waterworks?
EPA lists Osceola 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. 21 of the 21 active systems in Mississippi County (100%) are also owned by a local government.
Does Osceola Waterworks have drinking water violations?
EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in April 2026. The violations listed here began between July 2021 and April 2026. By type: 4 public notice, recordkeeping or other, 2 required treatment not met, 2 reporting, 1 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 6 as resolved and 4 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 |
|---|---|---|---|---|
| 2026-04-30 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Unaddressed |
| 2026-04-30 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2025-12-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2024-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-10-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2022-10-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-07-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
All 10 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.
Osceola Waterworks: frequently asked questions
Who runs Osceola Waterworks?
Osceola Waterworks (PWSID AR0000375) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Osceola Waterworks serve?
Osceola Waterworks reports serving 6,053 people through 2,779 service connections in Mississippi County, Arkansas.
Where does Osceola 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 Osceola Waterworks have any drinking water violations?
EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in April 2026. 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 Osceola 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 10 violations for this system; 2 are health-based, and the most recent began in April 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Osceola Waterworks' water quality report?
As a community water system, Osceola 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 Mississippi County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Blytheville Waterworks | Mississippi | 12,981 | Community | Groundwater |
| Manila Waterworks | Mississippi | 4,165 | Community | Groundwater |
| Gosnell Water Association | Mississippi | 3,083 | Community | Groundwater |
| Buffalo Island Reg Water Dist | Mississippi + 2 more | 3,055 | Community | Purchased surface water |
| Leachville Waterworks | Mississippi | 2,030 | Community | Groundwater |
| Dogwood Water Association | Mississippi | 1,345 | 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, “Osceola Waterworks, PWSID AR0000375, Arkansas”, https://aquacensus.com/water-systems/arkansas/osceola-waterworks-ar0000375 (data as of October 1, 2026).