Public water system · LA1019119
ActiveHouston River Waterworks District 11
At a glance
Houston River Waterworks District 11 (PWSID LA1019119) is an active community water system in Calcasieu Parish County, Louisiana. It reports serving 6,915 people through 2,305 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,915
Service connections
2,305
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Houston River Waterworks District 11 compare with other water systems in Calcasieu Parish County?
By EPA's size categories, Houston River Waterworks District 11 is a medium system (3,301 to 10,000 people). Calcasieu Parish County has 72 active public water systems, and Houston River Waterworks District 11 is the 5th-largest of them by population served. Its population served is about 133% above the county average of 2,962 people per system, and accounts for 3.2% of the 213,234 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 Houston River Waterworks District 11 is roughly in line with 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 Houston River Waterworks District 11?
EPA lists Houston River Waterworks District 11 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. 19 of the 72 active systems in Calcasieu Parish County (26%) are also owned by a local government.
Does Houston River Waterworks District 11 have drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2023. The violations listed here began between March 1995 and October 2023. By type: 9 contaminant level above the legal limit and 3 required treatment not met. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (4 of them). EPA lists 7 as archived and 5 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 |
|---|---|---|---|---|
| 2023-10-05 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2005-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2005-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2005-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2005-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2001-12-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 2001-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1995-03-15 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
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.
Houston River Waterworks District 11: frequently asked questions
Who runs Houston River Waterworks District 11?
Houston River Waterworks District 11 (PWSID LA1019119) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does Houston River Waterworks District 11 serve?
Houston River Waterworks District 11 reports serving 6,915 people through 2,305 service connections in Calcasieu Parish County, Louisiana.
Where does Houston River Waterworks District 11 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 Houston River Waterworks District 11 have any drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2023. 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 Houston River Waterworks District 11'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, 12 are health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find Houston River Waterworks District 11's water quality report?
As a community water system, Houston River Waterworks District 11 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 Calcasieu Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Lake Charles Water System | Calcasieu Parish | 79,500 | Community | Groundwater |
| Sulphur City of Water System | Calcasieu Parish | 24,489 | Community | Groundwater |
| Calcasieu Parish Ww District No 1 | Calcasieu Parish | 20,837 | Community | Groundwater |
| Calcasieu Parish Ww Dist 9 Carlyss | Calcasieu Parish | 14,502 | Community | Groundwater |
| Calcasieu Parish Ww District 8 | Calcasieu Parish | 6,834 | Community | Groundwater |
| Lawco - Dequincy Water System | Calcasieu Parish | 5,370 | 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, “Houston River Waterworks District 11, PWSID LA1019119, Louisiana”, https://aquacensus.com/water-systems/louisiana/houston-river-waterworks-district-11-la1019119 (data as of October 1, 2026).