Public water system · LA1031029
ActiveSouth Desoto Water System
At a glance
South Desoto Water System (PWSID LA1031029) is an active community water system in De Soto Parish County, Louisiana. It reports serving 963 people through 321 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in February 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
963
Service connections
321
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does South Desoto Water System compare with other water systems in De Soto Parish County?
By EPA's size categories, South Desoto Water System is a small system (501 to 3,300 people). De Soto Parish County has 12 active public water systems. Its population served is well below the county average of 2,896 people per system, and accounts for 2.8% of the 34,752 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 South Desoto 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 South Desoto Water System?
EPA lists South Desoto Water System 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. 8 of the 12 active systems in De Soto Parish County (67%) are also privately owned.
Does South Desoto Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in February 2026. The violations listed here began between January 2024 and February 2026. By type: 9 contaminant level above the legal limit and 3 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (9 of them). EPA lists 9 as archived and 3 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 |
|---|---|---|---|---|
| 2026-02-18 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2026-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2024-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2024-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2024-05-23 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2024-02-24 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | 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.
South Desoto Water System: frequently asked questions
Who runs South Desoto Water System?
South Desoto Water System (PWSID LA1031029) is a community water system privately owned. It is regulated by the LA state drinking water program.
How many people does South Desoto Water System serve?
South Desoto Water System reports serving 963 people through 321 service connections in De Soto Parish County, Louisiana.
Where does South Desoto 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 South Desoto Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, 9 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 South Desoto 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. Of the 12 most recent violations in EPA's records, 9 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 South Desoto Water System's water quality report?
As a community water system, South Desoto 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 De Soto Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| North Desoto Water System | De Soto Parish | 7,608 | Community | Groundwater |
| City of Mansfield Water System | De Soto Parish | 7,512 | Community | Surface water |
| Desoto Parish Water Works District 1 | De Soto Parish | 7,173 | Community | Surface water |
| Keatchie Water System | De Soto Parish | 4,446 | Community | Groundwater |
| Town of Logansport Water System | De Soto Parish | 2,448 | Community | Surface water |
| East Desoto Water System | De Soto Parish | 1,455 | 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, “South Desoto Water System, PWSID LA1031029, Louisiana”, https://aquacensus.com/water-systems/louisiana/south-desoto-water-system-la1031029 (data as of October 1, 2026).