Spokane, LA Tap Water Quality 2026

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

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

Main Utility: Lake St John Waterworks District 1 PWSID: LA1029006 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

Spokane earns a B for water quality

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

Lead: not detected

PFAS never sampled at this system

62 violations since 2015, 57 health-based

No violations currently open

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

0 ppb5 ppb10 ppb15 ppb

Lead level: Not detected — 0% of the federal action level

✓ Lower lead than % of Louisiana utilities

Population Served

~689 connections

Water Source

Groundwater

Drawn from wells — SDWIS source code GW

Active Violations

62 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

0% of EPA action level

Not detected

Action level: 15 ppb

Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

Contaminant	Type	Measured	Limit	Period	Status
TTHM	MCL EXCEEDANCE	0.081 MG/L	0.080 mg/L	2023	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.062 MG/L	0.060 mg/L	2023	Resolved
TTHM	MCL EXCEEDANCE	91 UG/L	0.080 mg/L	2023	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	65 UG/L	0.060 mg/L	2023	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.068 MG/L	0.060 mg/L	2023	Resolved
TTHM	MCL EXCEEDANCE	0.089 MG/L	0.080 mg/L	2023	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.063 MG/L	0.060 mg/L	2022	Resolved
TTHM	MCL EXCEEDANCE	0.082 MG/L	0.080 mg/L	2022	Resolved
TTHM	MCL EXCEEDANCE	0.083 MG/L	0.080 mg/L	2022	Resolved
Public Notice	OTHER	—	—	2022	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.066 MG/L	0.060 mg/L	2022	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.067 MG/L	0.060 mg/L	2022	Resolved
Public Notice	OTHER	—	—	2021	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.068 MG/L	0.060 mg/L	2021	Resolved
Groundwater Rule	TREATMENT TECHNIQUE	—	—	2021	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.068 MG/L	0.060 mg/L	2021	Resolved
TTHM	MCL EXCEEDANCE	0.081 MG/L	0.080 mg/L	2021	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.071 MG/L	0.060 mg/L	2021	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.069 MG/L	0.060 mg/L	2021	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.069 MG/L	0.060 mg/L	2020	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.074 MG/L	0.060 mg/L	2020	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.069 MG/L	0.060 mg/L	2020	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.07 MG/L	0.060 mg/L	2020	Resolved
TTHM	MCL EXCEEDANCE	0.081 MG/L	0.080 mg/L	2020	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.072 MG/L	0.060 mg/L	2019	Resolved
TTHM	MCL EXCEEDANCE	0.082 MG/L	0.080 mg/L	2019	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.062 MG/L	0.060 mg/L	2019	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.07 MG/L	0.060 mg/L	2019	Resolved
TTHM	MCL EXCEEDANCE	0.084 MG/L	0.080 mg/L	2019	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.069 MG/L	0.060 mg/L	2018	Resolved
TTHM	MCL EXCEEDANCE	0.085 MG/L	0.080 mg/L	2018	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	74 UG/L	0.060 mg/L	2018	Resolved
TTHM	MCL EXCEEDANCE	93 UG/L	0.080 mg/L	2018	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	74 UG/L	0.060 mg/L	2018	Resolved
TTHM	MCL EXCEEDANCE	94 UG/L	0.080 mg/L	2018	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	64 UG/L	0.060 mg/L	2018	Resolved
TTHM	MCL EXCEEDANCE	93 UG/L	0.080 mg/L	2018	Resolved
Consumer Confidence Rule	OTHER	—	—	2017	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	67 UG/L	0.060 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	98 UG/L	0.080 mg/L	2017	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	64 UG/L	0.060 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	100 UG/L	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	98 UG/L	0.080 mg/L	2017	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	61 UG/L	0.060 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	93 UG/L	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	92 UG/L	0.080 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	64 UG/L	0.060 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	92 UG/L	0.080 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	98 UG/L	0.080 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	69 UG/L	0.060 mg/L	2016	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	73 UG/L	0.060 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	102 UG/L	0.080 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	101 UG/L	0.080 mg/L	2015	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	75 UG/L	0.060 mg/L	2015	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	79 UG/L	0.060 mg/L	2015	Resolved
TTHM	MCL EXCEEDANCE	100 UG/L	0.080 mg/L	2015	Resolved
TTHM	MCL EXCEEDANCE	101 UG/L	0.080 mg/L	2015	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	75 UG/L	0.060 mg/L	2015	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2015	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2015	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	75 UG/L	0.060 mg/L	2015	Resolved
TTHM	MCL EXCEEDANCE	96 UG/L	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

62 violations are on record since 2015, of which 57 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Lake St John Waterworks District 1

PWSID LA1029006

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

Population served 96

Service connections 689

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Spokane tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open.

Does Spokane 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 Spokane? ▼

Lake St John Waterworks District 1 (PWSID LA1029006). Groundwater. Drawn from wells — SDWIS source code GW

When was this system last inspected? ▼

It was last inspected on 2025-08-20. No significant deficiencies were recorded.

What Should Spokane 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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