Public water system · AR0000343

Active

Lonoke Waterworks

At a glance

Lonoke Waterworks (PWSID AR0000343) is an active community water system in Lonoke County, Arkansas. It reports serving 4,277 people through 1,707 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; 6 are health-based, and the most recent began in March 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

4,277

Service connections

1,707

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDAR0000343

System typeCommunity water system

Activity statusActive

Population served4,277

Service connections1,707

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyAR state drinking water program

City served—

StateArkansas

ZIP—

CountyLonoke County

How does Lonoke Waterworks compare with other water systems in Lonoke County?

By EPA's size categories, Lonoke Waterworks is a medium system (3,301 to 10,000 people). Lonoke County has 12 active public water systems, and Lonoke Waterworks is the 3rd-largest of them by population served. Its population served is roughly in line with the county average of 3,944 people per system, and accounts for 9% of the 47,326 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 Lonoke Waterworks is about 36% 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 Lonoke Waterworks?

EPA lists Lonoke 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. 11 of the 12 active systems in Lonoke County (92%) are also owned by a local government.

Does Lonoke Waterworks have drinking water violations?

EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in March 2025. The violations listed here began between October 1999 and March 2025. By type: 5 required treatment not met, 2 monitoring and reporting, 2 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Stage 1 Disinfectants and Disinfection Byproducts Rule (5 of them). EPA lists 10 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
2025-03-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2025-02-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2025-01-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2024-12-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2024-11-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2019-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2012-03-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2001-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1999-10-19	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
1999-10-19	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.

Lonoke Waterworks: frequently asked questions

Who runs Lonoke Waterworks?

Lonoke Waterworks (PWSID AR0000343) is a community water system owned by a local government. It is regulated by the AR state drinking water program.

How many people does Lonoke Waterworks serve?

Lonoke Waterworks reports serving 4,277 people through 1,707 service connections in Lonoke County, Arkansas.

Where does Lonoke 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 Lonoke Waterworks have any drinking water violations?

EPA's records list 10 violations for this system; 6 are health-based, and the most recent began in March 2025. 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 Lonoke 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; 6 are health-based, and the most recent began in March 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.

Where can I find Lonoke Waterworks' water quality report?

As a community water system, Lonoke 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 Lonoke County

Water system	County	Population served	Type	Source
Grand Prairie Bayou 2 Pwa	Lonoke	13,519	Community	Purchased surface water
Ward Waterworks	Lonoke	12,579	Community	Purchased surface water
Des Arc Waterworks	Lonoke + 1 more	4,245	Community	Groundwater
Austin Waterworks	Lonoke	3,600	Community	Purchased surface water
Furlow Public Water Authority	Lonoke	3,073	Community	Purchased surface water
England Waterworks	Lonoke	2,477	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, “Lonoke Waterworks, PWSID AR0000343, Arkansas”, https://aquacensus.com/water-systems/arkansas/lonoke-waterworks-ar0000343 (data as of October 1, 2026).