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Sioux Rapids, IA Tap Water Quality 2026

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

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

Main Utility: Sioux Rapids Water Department PWSID: IA1175056 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 6.50 ppb, 43% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Sioux Rapids earns a B for water quality

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

Lead: 6.50 ppb — 43% of the federal action level
PFAS never sampled at this system
5 violations since 2015, 0 health-based
No violations currently open
Sioux Rapids's lead level vs. all Iowa community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 6.50 ppb — 43% of the federal action level
✓ Lower lead than 9% of Iowa utilities
Population Served
739
~373 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
5 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
43% of EPA action level
6.50 ppb
Action level: 15 ppb
The 90th-percentile lead result is 6.50 ppb, 43% 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)

ContaminantTypeMeasuredLimitPeriodStatus
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Unaddressed
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Consumer Confidence Rule OTHER — — 2024 Unaddressed
Consumer Confidence Rule OTHER — — 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 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

5 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Sioux Rapids Water Department
PWSID IA1175056
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 739
Service connections 373
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Sioux Rapids tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 6.50 ppb, 43% of the action level.
Does Sioux Rapids 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 Sioux Rapids? ▼
Sioux Rapids Water Department (PWSID IA1175056). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-05-09. Inspectors recorded 1 significant deficiency.

What Should Sioux Rapids 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.

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