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RAYVILLE WATER SYSTEM

PWS ID: LA1083006 · RAYVILLE, Louisiana 71269

RAYVILLE WATER SYSTEM serves 4,842 people in RAYVILLE, Louisiana using Groundwater water sources. It has 409 recorded EPA violations, including 319 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: RAYVILLE WATER SYSTEM

RAYVILLE WATER SYSTEM is a local-owned community water system that delivers drinking water to 4,842 residents in RAYVILLE, Louisiana (Richland Parish County) through 1,614 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 409 total violations for this system , of which 319 (78%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 24 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is TTHM, recorded in 189 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 0.0034 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Louisiana, EPA tracks 1,234 public water systems serving 5,316,532 people, with 115,060 cumulative violations and 62,164 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 93.2 violations. RAYVILLE WATER SYSTEM's 409 violations sit above the Louisiana average. Statewide, 218 of 265 UCMR5-tested systems have reported PFAS detections (82.3%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
4,842
Total Violations
409
Health-Based Violations
319
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,614
County
Richland Parish
School/Daycare
No
MCL Violations
278
Monitoring Violations
24
Treatment Tech Violations
41

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 189 2019
Total Haloacetic Acids (HAA5) MCL 47 2019
Coliform (TCR) MCL 42 2015
Groundwater Rule TT 40 2022
Public Notice Other 29 2022
Consumer Confidence Rule Other 19 2015
TTHM MR 11 2017
Total Haloacetic Acids (HAA5) MR 8 2011
Lead and Copper Rule MR 3 2007
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 2008
LEAD AND COPPER RULE REVISIONS TT 1 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
ADONA 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 4/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 4/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 4/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 4/23/2024 0.0034 µg/L 0.003 µg/L Detected
PFHpA 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 4/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 4/23/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFOS 4/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 4/23/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 4/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/23/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 4/23/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 4/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 4/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 4/23/2024 <9 µg/L 9 µg/L Not Detected
PFPeA 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 4/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 4/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 4/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 4/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 4/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 10/15/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 10/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 10/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 10/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 10/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 10/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 10/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 10/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 10/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 10/15/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 10/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 10/15/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 10/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 10/15/2024 <9 µg/L 9 µg/L Not Detected
PFHpS 10/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 10/15/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFUnA 10/15/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFTrDA 10/15/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFPeS 10/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 10/15/2024 <0.02 µg/L 0.02 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for RAYVILLE WATER SYSTEM.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID LA1083006 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Louisiana Drinking Water Authority

Louisiana's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find LA regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / LA1083006 / 5200
2022 Groundwater Rule TT 40 SDWIS / LA1083006 / 0700
2022 Public Notice Other 29 SDWIS / LA1083006 / 7500
2019 TTHM MCL 189 SDWIS / LA1083006 / 2950
2019 Total Haloacetic Acids (HAA5) MCL 47 SDWIS / LA1083006 / 2456
2017 TTHM MR 11 SDWIS / LA1083006 / 2950
2015 Coliform (TCR) MCL 42 SDWIS / LA1083006 / 3100
2015 Consumer Confidence Rule Other 19 SDWIS / LA1083006 / 7000
2011 Total Haloacetic Acids (HAA5) MR 8 SDWIS / LA1083006 / 2456
2008 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 SDWIS / LA1083006 / 0600
2007 Lead and Copper Rule MR 3 SDWIS / LA1083006 / 5000

How RAYVILLE WATER SYSTEM Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric RAYVILLE WATER SYSTEM Louisiana avg Federal benchmark
Total violations 409 93.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 319 50.4 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 82.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,842 4,308 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,234 regulated public water systems in Louisiana.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is RAYVILLE WATER SYSTEM water safe to drink? ▼
RAYVILLE WATER SYSTEM (PWS ID: LA1083006) has 409 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 4,842 people using Groundwater sources.
How many people does RAYVILLE WATER SYSTEM serve? ▼
RAYVILLE WATER SYSTEM serves 4,842 people in RAYVILLE, Louisiana. It is a Local-owned system using Groundwater water sources with 1,614 service connections.
What type of violations does RAYVILLE WATER SYSTEM have? ▼
RAYVILLE WATER SYSTEM has 409 total violations: 319 health-based violations (MCL exceedances or treatment failures), 24 monitoring/reporting violations, and 41 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in RAYVILLE WATER SYSTEM water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in RAYVILLE WATER SYSTEM's water supply: PFHxS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does RAYVILLE WATER SYSTEM use? ▼
RAYVILLE WATER SYSTEM uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial