Public water system · LA1055011
ActiveTown of Duson Water System
At a glance
Town of Duson Water System (PWSID LA1055011) is an active community water system in Lafayette Parish County, Louisiana. It reports serving 2,190 people through 730 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in February 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,190
Service connections
730
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Town of Duson Water System compare with other water systems in Lafayette Parish County?
By EPA's size categories, Town of Duson Water System is a small system (501 to 3,300 people). Lafayette Parish County has 38 active public water systems. Its population served is well below the county average of 7,780 people per system, and accounts for 0.7% of the 295,639 people reported by systems filed under the county. Across Louisiana, the 1,121 active systems average 4,685 people each. Nationally, the average active community water system reports serving 6,703 people, so Town of Duson Water System 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. Louisiana has 815 active community water systems, 73% of the state's 1,121 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 966 Louisiana systems (86%) list groundwater as their primary source.
Who owns and regulates Town of Duson Water System?
EPA lists Town of Duson Water System as owned by a local government. The LA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 23 of the 38 active systems in Lafayette Parish County (61%) are also owned by a local government.
Does Town of Duson Water System have drinking water violations?
EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in February 2026. The violations listed here began between October 1991 and February 2026. By type: 5 public notice, recordkeeping or other, 4 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (5 of them). EPA lists 7 as resolved, 2 as unaddressed and 2 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2026-02-12 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2022-10-26 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2014-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2014-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2013-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 1999-10-19 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1994-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1991-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 11 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.
Town of Duson Water System: frequently asked questions
Who runs Town of Duson Water System?
Town of Duson Water System (PWSID LA1055011) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does Town of Duson Water System serve?
Town of Duson Water System reports serving 2,190 people through 730 service connections in Lafayette Parish County, Louisiana.
Where does Town of Duson Water System 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 Town of Duson Water System have any drinking water violations?
EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in February 2026. 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 Town of Duson Water System'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. EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in February 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find Town of Duson Water System's water quality report?
As a community water system, Town of Duson Water System 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 Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lafayette Utilities Water System | Lafayette Parish | 169,389 | Community | Groundwater |
| Lpwdn North Region | Lafayette Parish | 16,833 | Community | Purchased groundwater |
| Lpwd South | Lafayette Parish | 15,132 | Community | Purchased groundwater |
| City of Carencro Water System | Lafayette Parish | 11,301 | Community | Groundwater |
| City of Youngsville Water System | Lafayette Parish | 10,614 | Community | Groundwater |
| City of Broussard Purchase Water System | Lafayette Parish | 10,242 | Community | Purchased 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, “Town of Duson Water System, PWSID LA1055011, Louisiana”, https://aquacensus.com/water-systems/louisiana/town-of-duson-water-system-la1055011 (data as of October 1, 2026).