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Osceola, IA Tap Water Quality 2026

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

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

Main Utility: Osceola Water Works PWSID: IA2038038 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 6.00 ppb, 40% of the action level and no violations are open. No PFAS was detected.

C

Osceola earns a C for water quality

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

Lead: 6.00 ppb — 40% of the federal action level
PFAS tested, none detected
8 violations since 2015, 6 health-based
No violations currently open
Osceola's lead level vs. all Iowa community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 6.00 ppb — 40% of the federal action level
✓ Lower lead than 12% of Iowa utilities
Population Served
5335
~2288 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
8 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
40% of EPA action level
6.00 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.
104.6% of EPA action level
1,360 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 6.00 ppb, 40% 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
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Archived
Public Notice OTHER — — 2020 Unaddressed
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 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

8 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 Osceola Water Works
PWSID IA2038038
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 5,335
Service connections 2,288
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Osceola tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 6.00 ppb, 40% of the action level.
Does Osceola water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Osceola? ▼
Osceola Water Works (PWSID IA2038038), one of 2 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2023-11-20. No significant deficiencies were recorded.

What Should Osceola Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
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.

Nearby Cities in Iowa

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