F0/100
LEON WATER SUPPLY — Water Quality Report 2026
Serving 1,830 people · Iowa
Water Source
Surface Water
County
—
System ID
IA2742076
Violations
26
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
5
Violations (last 5yr)
0
Unresolved
3
Health-Related
TIER 2Resolved
Failed treatment technique requirements
When: July 1, 2023 – July 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: September 1, 2022 – September 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: August 1, 2022 – August 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 1, 2022 – February 28, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 1, 2022 – February 28, 2022Rule: Stage 2 DBPREnforcement: 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 LEON WATER SUPPLY
Is LEON WATER SUPPLY water safe to drink?
LEON WATER SUPPLY water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 26 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LEON WATER SUPPLY detected?
1 contaminants were tested in LEON WATER SUPPLY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LEON WATER SUPPLY have any EPA violations?
Yes, LEON WATER SUPPLY has 26 EPA violation(s) on record, with the most recent in 2023. Violation types include TT, MR, MCL. 20 are health-based violations.
How many people does LEON WATER SUPPLY serve?
LEON WATER SUPPLY serves approximately 1,830 people, Iowa. The system provides water to 1 community: Leon.
What type of water does LEON WATER SUPPLY provide?
LEON WATER SUPPLY 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 IA2742076.
How does LEON WATER SUPPLY compare to other utilities in Iowa?
LEON WATER SUPPLY 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.