DOWNSVILLE WATER SYSTEM

Compiled by PlainEnviro Editorial, Environmental Data Editorial Team · July 13, 2026

PWSID: LA1111004 · Downsville, LA · Serves 216 people

Health Violations

DOWNSVILLE WATER SYSTEM has 115 health-based violations out of 115 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served

216

Total Violations

115

Health Violations

115

Source Type

Groundwater

DOWNSVILLE WATER SYSTEM (PWSID LA1111004) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 216 people in Downsville, LA, and is subject to primacy enforcement by the Louisiana drinking-water program.

The system's federal compliance record contains 115 total violations, with 115 classified as health-based (MCL exceedances or treatment-technique failures). 3 distinct contaminants have been cited, including Total Trihalomethanes (TTHM), Haloacetic Acids (HAA5), Fluoride. Recorded violations span 2012–2025.

A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Louisiana state drinking-water program's public portal.

System Details

EPA ID (PWSID): LA1111004
System Type: CWS
Water Source: Groundwater
Location: Downsville, LA
Population Served: 216
Health Violations: Yes (115)

What contaminants are in this water system?

Contaminant	Violations	Health-Based
Total Trihalomethanes (TTHM)	95	95
Haloacetic Acids (HAA5)	18	18
Fluoride	2	2

Violation History (115)

Contaminant	Type	Health	Date	Enforcement
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2025	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2025	9800456
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2025	9800659
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	9800657
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2025	-
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	9800456
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2024	9800654
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9800651
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	9800651
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2024	-
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9800645
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9800646
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2024	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9800456
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9800643
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2024	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9800456
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9800640
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2023	9800640
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9800637
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9800637
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2023	9800637
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9800634
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	9800634
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2023	-
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9800631
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9800631
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9800456
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2023	9800631
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	9800628
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	9800628
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2022	9800628
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	9800625
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	9800625
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2022	9800625
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9800622
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9800622
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2022	9800622
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9800619
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9800619
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2022	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	9800616
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2021	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	9800611
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2021	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2021	9800606
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2021	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2021	9800602
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2021	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2021	9800602
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2021	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2020	9800599
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2020	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2020	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2020	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2020	9800599
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2020	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2020	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2020	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2020	9800599
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2020	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2020	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2020	9800599
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2020	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2020	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2020	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2019	9800599
Haloacetic Acids (HAA5)	MCL	Yes	Oct 1, 2019	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2019	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2019	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2019	9800599
Haloacetic Acids (HAA5)	MCL	Yes	Jul 1, 2019	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2019	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2019	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2019	9800599
Haloacetic Acids (HAA5)	MCL	Yes	Apr 1, 2019	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2019	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2019	9800650
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2019	9800599
Haloacetic Acids (HAA5)	MCL	Yes	Jan 1, 2019	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2019	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Jan 1, 2019	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2018	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Oct 1, 2018	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2018	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Jul 1, 2018	9800650
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2018	9800599
Total Trihalomethanes (TTHM)	MCL	Yes	Apr 1, 2018	9800650
Fluoride	TT	Yes	Mar 2, 2018	9800528

Showing 100 of 115 violations.

Frequently Asked Questions

Is DOWNSVILLE WATER SYSTEM water safe to drink?

DOWNSVILLE WATER SYSTEM has 115 health-based violations out of 115 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed. The system uses groundwater water as its source.

How many people does DOWNSVILLE WATER SYSTEM serve?

DOWNSVILLE WATER SYSTEM serves 216 people in Downsville, LA. It is classified as a CWS water system.

What violations does DOWNSVILLE WATER SYSTEM have?

DOWNSVILLE WATER SYSTEM has 115 total violations on record spanning 2012–2025. 115 are health-based violations involving contaminants exceeding EPA limits.

What contaminants have been found in DOWNSVILLE WATER SYSTEM water?

Violations have been recorded for 3 contaminants. The most frequent: Total Trihalomethanes (TTHM), Haloacetic Acids (HAA5), Fluoride.

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About This Data

Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

Read our methodology - how this data is sourced, computed, and verified.

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