C57/100
LISBON WATER SUPPLY — Water Quality Report 2026
Serving 2,233 people · Iowa
Water Source
Groundwater
County
—
System ID
IA5748086
Violations
16
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025 – July 31, 2025Rule: Total Coliform RuleEnforcement: 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 LISBON WATER SUPPLY
Is LISBON WATER SUPPLY water safe to drink?
LISBON WATER SUPPLY water receives a grade of C (57/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 16 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LISBON WATER SUPPLY detected?
1 contaminants were tested in LISBON WATER SUPPLY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LISBON WATER SUPPLY have any EPA violations?
Yes, LISBON WATER SUPPLY has 16 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MCL, MR. 6 are health-based violations.
How many people does LISBON WATER SUPPLY serve?
LISBON WATER SUPPLY serves approximately 2,233 people, Iowa. The system provides water to 1 community: Lisbon.
What type of water does LISBON WATER SUPPLY provide?
LISBON WATER SUPPLY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA5748086.
How does LISBON WATER SUPPLY compare to other utilities in Iowa?
LISBON WATER SUPPLY scores 57/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Iowa state page for a full comparison of water systems.