Public water system · AR0000298
ActiveWalnut Hill Water Association
At a glance
Walnut Hill Water Association (PWSID AR0000298) is an active community water system in Lafayette County, Arkansas. It reports serving 275 people through 110 service connections. Its primary water source is purchased groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
275
Service connections
110
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Walnut Hill Water Association compare with other water systems in Lafayette County?
By EPA's size categories, Walnut Hill Water Association is a very small system (500 people or fewer). Lafayette County has 8 active public water systems, and Walnut Hill Water Association is the 6th-largest of them by population served. Its population served is about 64% below the county average of 768 people per system, and accounts for 4.5% of the 6,146 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 Walnut Hill Water Association 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 Walnut Hill Water Association?
EPA lists Walnut Hill Water Association as privately owned. 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. 3 of the 8 active systems in Lafayette County (38%) are also privately owned.
Does Walnut Hill Water Association have drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2023. The violations listed here began between June 2015 and October 2023. By type: 12 contaminant level above the legal limit. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (11 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 |
|---|---|---|---|---|
| 2023-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2018-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2017-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2015-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Walnut Hill Water Association: frequently asked questions
Who runs Walnut Hill Water Association?
Walnut Hill Water Association (PWSID AR0000298) is a community water system privately owned. It is regulated by the AR state drinking water program.
How many people does Walnut Hill Water Association serve?
Walnut Hill Water Association reports serving 275 people through 110 service connections in Lafayette County, Arkansas.
Where does Walnut Hill Water Association 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 Walnut Hill Water Association have any drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2023. 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 Walnut Hill Water Association'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, 12 are health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Walnut Hill Water Association's water quality report?
As a community water system, Walnut Hill Water Association 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 Lafayette County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lewisville Waterworks | Lafayette | 1,951 | Community | Groundwater |
| Stamps Waterworks | Lafayette | 1,633 | Community | Groundwater |
| Walker Creek Stateline Rwa | Lafayette | 1,340 | Community | Groundwater |
| Bradley Waterworks | Lafayette | 567 | Community | Groundwater |
| Buckner Waterworks | Lafayette | 290 | Community | Groundwater |
| Sw Region Wilderness Camp | Lafayette | 65 | Non-transient non-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, “Walnut Hill Water Association, PWSID AR0000298, Arkansas”, https://aquacensus.com/water-systems/arkansas/walnut-hill-water-association-ar0000298 (data as of October 1, 2026).