Public water system · LA1099006
ActiveHenderson Nina Water System Inc.
At a glance
Henderson Nina Water System Inc. (PWSID LA1099006) is an active community water system in St. Martin Parish County, Louisiana. It reports serving 5,535 people through 1,845 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,535
Service connections
1,845
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Henderson Nina Water System Inc. compare with other water systems in St. Martin Parish County?
By EPA's size categories, Henderson Nina Water System Inc. is a medium system (3,301 to 10,000 people). St. Martin Parish County has 24 active public water systems, and Henderson Nina Water System Inc. is the 6th-largest of them by population served. Its population served is about 68% above the county average of 3,304 people per system, and accounts for 7% of the 79,285 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 Henderson Nina Water System Inc. is about 17% 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 Henderson Nina Water System Inc.?
EPA lists Henderson Nina Water System Inc. as privately owned. 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. 15 of the 24 active systems in St. Martin Parish County (63%) are also privately owned.
Does Henderson Nina Water System Inc. have drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in January 2026. The violations listed here began between December 2006 and January 2026. By type: 3 monitoring and reporting, 2 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (2 of them). EPA lists 4 as resolved 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. 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 |
|---|---|---|---|---|
| 2026-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2016-11-12 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2015-05-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2015-05-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2008-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 6 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.
Henderson Nina Water System Inc.: frequently asked questions
Who runs Henderson Nina Water System Inc.?
Henderson Nina Water System Inc. (PWSID LA1099006) is a community water system privately owned. It is regulated by the LA state drinking water program.
How many people does Henderson Nina Water System Inc. serve?
Henderson Nina Water System Inc. reports serving 5,535 people through 1,845 service connections in St. Martin Parish County, Louisiana.
Where does Henderson Nina Water System Inc. 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 Henderson Nina Water System Inc. have any drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in January 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 Henderson Nina Water System Inc.'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 6 violations for this system; 2 are health-based, and the most recent began in January 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 Henderson Nina Water System Inc.'s water quality report?
As a community water system, Henderson Nina Water System Inc. 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 St. Martin Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Village of Parks Water System | St. Martin Parish | 12,801 | Community | Groundwater |
| Cecilia Water Corporation | St. Martin Parish | 12,420 | Community | Groundwater |
| Bayou Teche Water Works | St. Martin Parish | 10,137 | Community | Groundwater |
| City of Breaux Bridge Water System | St. Martin Parish | 10,098 | Community | Groundwater |
| City of St Martinville Water System | St. Martin Parish | 7,263 | Community | Groundwater |
| United Water System | St. Martin Parish | 4,446 | 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, “Henderson Nina Water System Inc., PWSID LA1099006, Louisiana”, https://aquacensus.com/water-systems/louisiana/henderson-nina-water-system-inc-la1099006 (data as of October 1, 2026).