Public water system · LA1019116
ActiveCalcasieu Parish Ww Dist 9 Carlyss
At a glance
Calcasieu Parish Ww Dist 9 Carlyss (PWSID LA1019116) is an active community water system in Calcasieu Parish County, Louisiana. It reports serving 14,502 people through 4,834 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; 3 are health-based, and the most recent began in October 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
14,502
Service connections
4,834
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Calcasieu Parish Ww Dist 9 Carlyss compare with other water systems in Calcasieu Parish County?
By EPA's size categories, Calcasieu Parish Ww Dist 9 Carlyss is a large system (10,001 to 100,000 people). Calcasieu Parish County has 72 active public water systems, and Calcasieu Parish Ww Dist 9 Carlyss is the 4th-largest of them by population served. Its population served is about 4.9 times the county average of 2,962 people per system, and accounts for 6.8% 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 Calcasieu Parish Ww Dist 9 Carlyss is about twice 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 Calcasieu Parish Ww Dist 9 Carlyss?
EPA lists Calcasieu Parish Ww Dist 9 Carlyss 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 Calcasieu Parish Ww Dist 9 Carlyss have drinking water violations?
EPA's records list 11 violations for this system; 3 are health-based, and the most recent began in October 2013. The violations listed here began between October 1999 and October 2013. By type: 7 monitoring and reporting, 2 contaminant level above the legal limit, 1 required treatment not met and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (3 of them). EPA lists 11 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 |
|---|---|---|---|---|
| 2013-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2013-01-15 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2009-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2009-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | 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 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.
Calcasieu Parish Ww Dist 9 Carlyss: frequently asked questions
Who runs Calcasieu Parish Ww Dist 9 Carlyss?
Calcasieu Parish Ww Dist 9 Carlyss (PWSID LA1019116) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does Calcasieu Parish Ww Dist 9 Carlyss serve?
Calcasieu Parish Ww Dist 9 Carlyss reports serving 14,502 people through 4,834 service connections in Calcasieu Parish County, Louisiana.
Where does Calcasieu Parish Ww Dist 9 Carlyss 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 Calcasieu Parish Ww Dist 9 Carlyss have any drinking water violations?
EPA's records list 11 violations for this system; 3 are health-based, and the most recent began in October 2013. 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 Calcasieu Parish Ww Dist 9 Carlyss' 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; 3 are health-based, and the most recent began in October 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find Calcasieu Parish Ww Dist 9 Carlyss' water quality report?
As a community water system, Calcasieu Parish Ww Dist 9 Carlyss 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 |
| Houston River Waterworks District 11 | Calcasieu Parish | 6,915 | 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, “Calcasieu Parish Ww Dist 9 Carlyss, PWSID LA1019116, Louisiana”, https://aquacensus.com/water-systems/louisiana/calcasieu-parish-ww-dist-9-carlyss-la1019116 (data as of October 1, 2026).