F13/100
OSCEOLA WATER WORKS — Water Quality Report 2026
Serving 5,503 people · Iowa
Water Source
Surface Water
County
—
System ID
IA2038038
Violations
28
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.36 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
2
Health-Related
TIER 2Resolved
Failed treatment technique requirements
When: September 1, 2024 – September 30, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: March 1, 2024 – March 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About OSCEOLA WATER WORKS
Is OSCEOLA WATER WORKS water safe to drink?
OSCEOLA WATER WORKS water receives a grade of F (13/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 28 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has OSCEOLA WATER WORKS detected?
39 contaminants were tested in OSCEOLA WATER WORKS's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does OSCEOLA WATER WORKS have any EPA violations?
Yes, OSCEOLA WATER WORKS has 28 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, MR, Other. 12 are health-based violations.
How many people does OSCEOLA WATER WORKS serve?
OSCEOLA WATER WORKS serves approximately 5,503 people, Iowa. The system provides water to 1 community: Osceola.
What type of water does OSCEOLA WATER WORKS provide?
OSCEOLA WATER WORKS sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is IA2038038.
How does OSCEOLA WATER WORKS compare to other utilities in Iowa?
OSCEOLA WATER WORKS scores 13/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Iowa state page for a full comparison of water systems.