Public water system · LA1055005
ActiveCity of Carencro Water System
At a glance
City of Carencro Water System (PWSID LA1055005) is an active community water system in Lafayette Parish County, Louisiana. It reports serving 11,301 people through 3,767 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in March 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
11,301
Service connections
3,767
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Carencro Water System compare with other water systems in Lafayette Parish County?
By EPA's size categories, City of Carencro Water System is a large system (10,001 to 100,000 people). Lafayette Parish County has 38 active public water systems, and City of Carencro Water System is the 4th-largest of them by population served. Its population served is about 45% above the county average of 7,780 people per system, and accounts for 3.8% 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 City of Carencro Water System is about 69% above 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 City of Carencro Water System?
EPA lists City of Carencro 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 City of Carencro Water System have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in March 2026. The violations listed here began between May 2009 and March 2026. By type: 2 monitoring and reporting, 1 required treatment not met, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2026-03-02 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-02-21 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 5 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.
City of Carencro Water System: frequently asked questions
Who runs City of Carencro Water System?
City of Carencro Water System (PWSID LA1055005) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does City of Carencro Water System serve?
City of Carencro Water System reports serving 11,301 people through 3,767 service connections in Lafayette Parish County, Louisiana.
Where does City of Carencro 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 City of Carencro Water System have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in March 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 City of Carencro 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 5 violations for this system; 2 are health-based, and the most recent began in March 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 City of Carencro Water System's water quality report?
As a community water system, City of Carencro 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 Youngsville Water System | Lafayette Parish | 10,614 | Community | Groundwater |
| City of Broussard Purchase Water System | Lafayette Parish | 10,242 | Community | Purchased groundwater |
| Milton Water System | Lafayette Parish | 10,200 | 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, “City of Carencro Water System, PWSID LA1055005, Louisiana”, https://aquacensus.com/water-systems/louisiana/city-of-carencro-water-system-la1055005 (data as of October 1, 2026).