Public water system · AL0000929
ActiveTwin Water Authority
At a glance
Twin Water Authority (PWSID AL0000929) is an active community water system in Marion County, Alabama. It reports serving 804 people through 268 service connections. Its primary water source is purchased surface water, 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 January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
804
Service connections
268
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Twin Water Authority compare with other water systems in Marion County?
By EPA's size categories, Twin Water Authority is a small system (501 to 3,300 people). Marion County has 9 active public water systems. Its population served is well below the county average of 3,919 people per system, and accounts for 2.3% of the 35,271 people reported by systems filed under the county. Across Alabama, the 576 active systems average 11,028 people each. Nationally, the average active community water system reports serving 6,703 people, so Twin Water Authority 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. Alabama has 505 active community water systems, 88% of the state's 576 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 152 Alabama systems (26%) list purchased surface water as their primary source.
Who owns and regulates Twin Water Authority?
EPA lists Twin Water Authority as owned by a local government. The AL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 9 of the 9 active systems in Marion County (100%) are also owned by a local government.
Does Twin Water Authority have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025. The violations listed here began between December 2019 and January 2025. By type: 11 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (5 of them). EPA lists 11 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-08-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Diquatcode 2032 | No | Resolved |
| 2019-12-03 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | 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.
Twin Water Authority: frequently asked questions
Who runs Twin Water Authority?
Twin Water Authority (PWSID AL0000929) is a community water system owned by a local government. It is regulated by the AL state drinking water program.
How many people does Twin Water Authority serve?
Twin Water Authority reports serving 804 people through 268 service connections in Marion County, Alabama.
Where does Twin Water Authority get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Twin Water Authority 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 January 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 Twin Water Authority'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 January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AL state drinking water program.
Where can I find Twin Water Authority's water quality report?
As a community water system, Twin Water Authority 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 Marion County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Hamilton Water & Wastewater Department | Marion | 10,500 | Community | Surface water |
| Winfield Water Works & Sewer Board | Marion | 8,631 | Community | Surface water |
| Guin Water & Sewer Board | Marion | 4,350 | Community | Surface water |
| Marion County Public Water Authority | Marion | 3,660 | Community | Purchased surface water |
| Bear Creek Water Works | Marion | 3,222 | Community | Purchased surface water |
| Hackleburg, Water & Sewer Board | Marion | 2,514 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Twin Water Authority, PWSID AL0000929, Alabama”, https://aquacensus.com/water-systems/alabama/twin-water-authority-al0000929 (data as of October 1, 2026).