F0/100
CORNING MUNI WATER DEPARTMENT — Water Quality Report 2026
Serving 1,735 people · Iowa
Water Source
Surface Water
County
—
System ID
IA0220075
Violations
128
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – June 30, 2025Enforcement: Resolving — corrective action underway
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 CORNING MUNI WATER DEPARTMENT
Is CORNING MUNI WATER DEPARTMENT water safe to drink?
CORNING MUNI WATER DEPARTMENT water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 128 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CORNING MUNI WATER DEPARTMENT detected?
1 contaminants were tested in CORNING MUNI WATER DEPARTMENT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CORNING MUNI WATER DEPARTMENT have any EPA violations?
Yes, CORNING MUNI WATER DEPARTMENT has 128 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL, Other. 2 are health-based violations.
How many people does CORNING MUNI WATER DEPARTMENT serve?
CORNING MUNI WATER DEPARTMENT serves approximately 1,735 people, Iowa. The system provides water to 1 community: Corning.
What type of water does CORNING MUNI WATER DEPARTMENT provide?
CORNING MUNI WATER DEPARTMENT 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 IA0220075.
How does CORNING MUNI WATER DEPARTMENT compare to other utilities in Iowa?
CORNING MUNI WATER DEPARTMENT scores 0/100 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.