Public water system · AR0000427
ActiveHeafer-Black Oak Water Assoc
At a glance
Heafer-Black Oak Water Assoc (PWSID AR0000427) is an active community water system in Poinsett County, Arkansas. It reports serving 436 people through 175 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
436
Service connections
175
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Heafer-Black Oak Water Assoc compare with other water systems in Poinsett County?
By EPA's size categories, Heafer-Black Oak Water Assoc is a very small system (500 people or fewer). Poinsett County has 12 active public water systems. Its population served is well below the county average of 9,786 people per system, and accounts for 0.4% of the 117,437 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 Heafer-Black Oak Water Assoc 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 69 Arkansas systems (8.1%) list purchased groundwater as their primary source.
Who owns and regulates Heafer-Black Oak Water Assoc?
EPA lists Heafer-Black Oak Water Assoc 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. 12 of the 12 active systems in Poinsett County (100%) are also owned by a local government.
Does Heafer-Black Oak Water Assoc have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2020. The violations listed here began between October 2017 and July 2020. By type: 6 reporting, 5 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (7 of them). EPA lists 12 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2020-07-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-10-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-05-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-04-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-03-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2018-03-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-02-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-01-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-11-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The 12 most recent 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.
Heafer-Black Oak Water Assoc: frequently asked questions
Who runs Heafer-Black Oak Water Assoc?
Heafer-Black Oak Water Assoc (PWSID AR0000427) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Heafer-Black Oak Water Assoc serve?
Heafer-Black Oak Water Assoc reports serving 436 people through 175 service connections in Poinsett County, Arkansas.
Where does Heafer-Black Oak Water Assoc get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Heafer-Black Oak Water Assoc have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2020. 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 Heafer-Black Oak Water Assoc'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Heafer-Black Oak Water Assoc's water quality report?
As a community water system, Heafer-Black Oak Water Assoc 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 Poinsett County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Jonesboro Water System | Poinsett + 2 more | 81,888 | Community | Groundwater |
| Trumann Waterworks | Poinsett | 10,000 | Community | Groundwater |
| Cross County Rural Water Sys | Poinsett + 5 more | 8,750 | Community | Groundwater |
| Crowleys Ridge Water Assoc | Poinsett | 3,873 | Community | Groundwater |
| Harrisburg Waterworks | Poinsett | 2,824 | Community | Groundwater |
| Marked Tree Waterworks | Poinsett | 2,610 | 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, “Heafer-Black Oak Water Assoc, PWSID AR0000427, Arkansas”, https://aquacensus.com/water-systems/arkansas/heafer-black-oak-water-assoc-ar0000427 (data as of October 1, 2026).