Public water system · AR0000110
ActiveMc Neil Waterworks
At a glance
Mc Neil Waterworks (PWSID AR0000110) is an active community water system in Columbia County, Arkansas. It reports serving 515 people through 215 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 5 are health-based, and the most recent began in February 2003.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
515
Service connections
215
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mc Neil Waterworks compare with other water systems in Columbia County?
By EPA's size categories, Mc Neil Waterworks is a small system (501 to 3,300 people). Columbia County has 14 active public water systems. Its population served is well below the county average of 1,671 people per system, and accounts for 2.2% of the 23,395 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 Mc Neil 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 Mc Neil Waterworks?
EPA lists Mc Neil 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. 8 of the 14 active systems in Columbia County (57%) are also owned by a local government.
Does Mc Neil Waterworks have drinking water violations?
EPA's records list 9 violations for this system; 5 are health-based, and the most recent began in February 2003. The violations listed here began between June 1997 and February 2003. By type: 5 contaminant level above the legal limit and 4 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 6 as resolved and 3 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 |
|---|---|---|---|---|
| 2003-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-12-31 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2002-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1997-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 9 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.
Mc Neil Waterworks: frequently asked questions
Who runs Mc Neil Waterworks?
Mc Neil Waterworks (PWSID AR0000110) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Mc Neil Waterworks serve?
Mc Neil Waterworks reports serving 515 people through 215 service connections in Columbia County, Arkansas.
Where does Mc Neil 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 Mc Neil Waterworks have any drinking water violations?
EPA's records list 9 violations for this system; 5 are health-based, and the most recent began in February 2003. 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 Mc Neil 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 9 violations for this system; 5 are health-based, and the most recent began in February 2003. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Mc Neil Waterworks' water quality report?
As a community water system, Mc Neil 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 Columbia County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Magnolia Waterworks | Columbia | 11,657 | Community | Surface water |
| Lakeside Water Association | Columbia | 1,876 | Community | Purchased surface water |
| Dorcheat Water Association | Columbia | 1,860 | Community | Groundwater |
| Waldo Waterworks | Columbia | 1,630 | Community | Groundwater |
| Walker Water Association | Columbia | 1,182 | Community | Purchased surface water |
| Emerson Waterworks | Columbia | 1,145 | 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, “Mc Neil Waterworks, PWSID AR0000110, Arkansas”, https://aquacensus.com/water-systems/arkansas/mc-neil-waterworks-ar0000110 (data as of October 1, 2026).