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Henderson, LA Tap Water Quality 2026

Water quality report for Henderson, LA — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Henderson's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Henderson Nina Water System Inc PWSID: LA1099006 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 4.60 ppb, 31% of the action level and no violations are open. No PFAS was detected.

C

Henderson earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 4.60 ppb — 31% of the federal action level
PFAS tested, none detected
4 violations since 2015, 1 health-based
No violations currently open
Henderson's lead level vs. all Louisiana community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 4.60 ppb — 31% of the federal action level
✓ Lower lead than 10% of Louisiana utilities
Population Served
1577
~1845 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
4 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
31% of EPA action level
4.60 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
115.4% of EPA action level
1,500 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 4.60 ppb, 31% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
TTHM MCL EXCEEDANCE 0.098 MG/L 0.080 mg/L 2026 Archived
Public Notice OTHER — — 2016 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015–2016 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015–2016 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

4 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Henderson Nina Water System Inc
PWSID LA1099006
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 1,577
Service connections 1,845
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Henderson tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 4.60 ppb, 31% of the action level.
Does Henderson water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Henderson? ▼
Henderson Nina Water System Inc (PWSID LA1099006). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-08-30. Inspectors recorded 1 significant deficiency.

What Should Henderson Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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