C50/100
LAKE CITY WATER SUPPLY — Water Quality Report 2026
Serving 1,731 people · Iowa
Water Source
Groundwater
County
—
System ID
IA1345043
Violations
47
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (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: October 1, 2023 – December 31, 2023Enforcement: Resolving — corrective action underway
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: October 1, 2023 – December 31, 2023Enforcement: 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 LAKE CITY WATER SUPPLY
Is LAKE CITY WATER SUPPLY water safe to drink?
LAKE CITY WATER SUPPLY water receives a grade of C (50/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 47 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LAKE CITY WATER SUPPLY detected?
1 contaminants were tested in LAKE CITY WATER SUPPLY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LAKE CITY WATER SUPPLY have any EPA violations?
Yes, LAKE CITY WATER SUPPLY has 47 EPA violation(s) on record, with the most recent in 2023. Violation types include MR.
How many people does LAKE CITY WATER SUPPLY serve?
LAKE CITY WATER SUPPLY serves approximately 1,731 people, Iowa. The system provides water to 1 community: Lake City.
What type of water does LAKE CITY WATER SUPPLY provide?
LAKE CITY WATER SUPPLY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA1345043.
How does LAKE CITY WATER SUPPLY compare to other utilities in Iowa?
LAKE CITY WATER SUPPLY scores 50/100 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.