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Indianola, OK Tap Water Quality 2026

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

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

Main Utility: Indianola Rwd #18 PWSID: OK3006110 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.

B

Indianola 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
11 violations since 2015, 6 health-based
No violations currently open
Indianola's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Oklahoma utilities
Population Served
148
~650 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
11 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)

ContaminantTypeMeasuredLimitPeriodStatus
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2026 Archived
TTHM MCL EXCEEDANCE 0.088 MG/L 0.080 mg/L 2026 Archived
TTHM MCL EXCEEDANCE 0.088 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2025 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 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

11 violations are on record since 2015, of which 6 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Indianola Rwd #18
PWSID OK3006110
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 148
Service connections 650
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Indianola tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Indianola 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 Indianola? ▼
Indianola Rwd #18 (PWSID OK3006110). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2026-03-04. No significant deficiencies were recorded.

What Should Indianola 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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