Lisbon, LA Tap Water Quality 2026

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

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

Main Utility: Hico Water System PWSID: LA1061008 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead is 3.00 ppb, 20% of the action level and no violations are open. PFAS has never been sampled at this system.

Lisbon earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 3.00 ppb — 20% of the federal action level

PFAS never sampled at this system

64 violations since 2015, 39 health-based

No violations currently open

Lisbon's lead level vs. all Louisiana community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 3.00 ppb — 20% of the federal action level

✓ Lower lead than 20% of Louisiana utilities

Population Served

~510 connections

Water Source

Groundwater

Drawn from wells — SDWIS source code GW

Active Violations

64 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

20% of EPA action level

3.00 ppb

Action level: 15 ppb

The 90th-percentile lead result is 3.00 ppb, 20% 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.

Contaminant Violations (2015–Present)

Contaminant	Type	Measured	Limit	Period	Status
TTHM	MCL EXCEEDANCE	0.095 MG/L	0.080 mg/L	2026	Archived
TTHM	MCL EXCEEDANCE	0.105 MG/L	0.080 mg/L	2025	Archived
Public Notice	OTHER	—	—	2025	Unaddressed
TTHM	MCL EXCEEDANCE	0.112 MG/L	0.080 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.116 MG/L	0.080 mg/L	2025	Archived
Public Notice	OTHER	—	—	2025	Unaddressed
Public Notice	OTHER	—	—	2025	Unaddressed
TTHM	MCL EXCEEDANCE	0.114 MG/L	0.080 mg/L	2025	Archived
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2024	Addressed
Public Notice	OTHER	—	—	2024	Unaddressed
TTHM	MCL EXCEEDANCE	0.113 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.115 MG/L	0.080 mg/L	2024	Archived
Consumer Confidence Rule	OTHER	—	—	2024	Resolved
Public Notice	OTHER	—	—	2024	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.089 MG/L	0.060 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.109 MG/L	0.080 mg/L	2024	Archived
Public Notice	OTHER	—	—	2024	Unaddressed
Public Notice	OTHER	—	—	2024	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.089 MG/L	0.060 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.111 MG/L	0.080 mg/L	2024	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.088 MG/L	0.060 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.111 MG/L	0.080 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.089 MG/L	0.060 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.109 MG/L	0.080 mg/L	2023	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2023	Resolved
TTHM	MCL EXCEEDANCE	0.117 MG/L	0.080 mg/L	2023	Archived
Public Notice	OTHER	—	—	2023	Resolved
TTHM	MCL EXCEEDANCE	0.114 MG/L	0.080 mg/L	2023	Archived
Public Notice	OTHER	—	—	2022	Unaddressed
TTHM	MCL EXCEEDANCE	0.102 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.106 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.099 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.099 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.112 MG/L	0.080 mg/L	2021	Archived
TTHM	MCL EXCEEDANCE	0.108 MG/L	0.080 mg/L	2021	Archived
TTHM	MCL EXCEEDANCE	0.111 MG/L	0.080 mg/L	2021	Archived
TTHM	MCL EXCEEDANCE	0.113 MG/L	0.080 mg/L	2021	Archived
TTHM	MCL EXCEEDANCE	0.115 MG/L	0.080 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.116 MG/L	0.080 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.113 MG/L	0.080 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.117 MG/L	0.080 mg/L	2020	Archived
Public Notice	OTHER	—	—	2019	Unaddressed
TTHM	MCL EXCEEDANCE	0.112 MG/L	0.080 mg/L	2019	Archived
Public Notice	OTHER	—	—	2019	Unaddressed
TTHM	MCL EXCEEDANCE	0.111 MG/L	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	0.111 MG/L	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	0.114 MG/L	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	117 UG/L	0.080 mg/L	2018	Archived
TTHM	MCL EXCEEDANCE	115 UG/L	0.080 mg/L	2018	Archived
TTHM	MCL EXCEEDANCE	128 UG/L	0.080 mg/L	2018	Archived
TTHM	MCL EXCEEDANCE	124 UG/L	0.080 mg/L	2018	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2017	Resolved
Public Notice	OTHER	—	—	2017	Resolved
Consumer Confidence Rule	OTHER	—	—	2017	Resolved
TTHM	MCL EXCEEDANCE	125 UG/L	0.080 mg/L	2017	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	130 UG/L	0.080 mg/L	2017	Archived
Consumer Confidence Rule	OTHER	—	—	2017	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2016	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2016	Resolved
Coliform (TCR)	MONITORING AND REPORTING	—	5% of samples	2015	Resolved
Chlorine	MONITORING AND REPORTING	—	4.0 mg/L	2015	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2015	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

64 violations are on record since 2015, of which 39 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Hico Water System

PWSID LA1061008

Water source Groundwater — Drawn from wells — SDWIS source code GW

Population served

Service connections 510

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Lisbon tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 3.00 ppb, 20% of the action level.

Does Lisbon water have PFAS? ▼

This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.

Who supplies water to Lisbon? ▼

Hico Water System (PWSID LA1061008). Groundwater. Drawn from wells — SDWIS source code GW

When was this system last inspected? ▼

It was last inspected on 2025-10-29. No significant deficiencies were recorded.

What Should Lisbon Residents Do?

Read your annual water report

Your supplier publishes a Consumer Confidence Report each July covering the prior year.

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.

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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