Public water system · AR0000406
ActiveLouann Waterworks
At a glance
Louann Waterworks (PWSID AR0000406) is an active community water system in Ouachita County, Arkansas. It reports serving 170 people through 79 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in May 1999.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
170
Service connections
79
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Louann Waterworks compare with other water systems in Ouachita County?
By EPA's size categories, Louann Waterworks is a very small system (500 people or fewer). Ouachita County has 10 active public water systems. Its population served is well below the county average of 2,473 people per system, and accounts for 0.7% of the 24,726 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 Louann 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 Louann Waterworks?
EPA lists Louann 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. 5 of the 10 active systems in Ouachita County (50%) are also owned by a local government.
Does Louann Waterworks have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in May 1999. The violations listed here began between March 1994 and May 1999. By type: 1 contaminant level above the legal limit and 1 monitoring and reporting. The contaminants or rules involved are Total coliform bacteria (TCR) and Lead and Copper Rule. EPA lists 1 as archived and 1 as resolved. 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. 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 |
|---|---|---|---|---|
| 1999-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-03-02 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 2 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.
Louann Waterworks: frequently asked questions
Who runs Louann Waterworks?
Louann Waterworks (PWSID AR0000406) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Louann Waterworks serve?
Louann Waterworks reports serving 170 people through 79 service connections in Ouachita County, Arkansas.
Where does Louann 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 Louann Waterworks have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in May 1999. 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 Louann 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 2 violations for this system; 1 is health-based, and the most recent began in May 1999. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Louann Waterworks' water quality report?
As a community water system, Louann 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 Ouachita County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Camden Waterworks | Ouachita | 13,275 | Community | Surface water |
| Bearden Waterworks | Ouachita | 2,511 | Community | Groundwater |
| Harmony Grove Water Assoc | Ouachita | 2,192 | Community | Purchased surface water |
| Hwy 4 24 Water Association | Ouachita | 2,135 | Community | Purchased surface water |
| Frenchport Water Association | Ouachita | 1,793 | Community | Purchased surface water |
| Stephens Waterworks | Ouachita | 1,100 | 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, “Louann Waterworks, PWSID AR0000406, Arkansas”, https://aquacensus.com/water-systems/arkansas/louann-waterworks-ar0000406 (data as of October 1, 2026).