A90/100
POSTVILLE WATER DEPARTMENT — Water Quality Report 2026
Serving 2,513 people · Iowa
Water Source
Groundwater
County
—
System ID
IA0375053
Violations
7
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.010 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, 2023 – July 31, 2023Rule: 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 POSTVILLE WATER DEPARTMENT
Is POSTVILLE WATER DEPARTMENT water safe to drink?
POSTVILLE WATER DEPARTMENT water receives a grade of A (90/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has POSTVILLE WATER DEPARTMENT detected?
1 contaminants were tested in POSTVILLE WATER DEPARTMENT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does POSTVILLE WATER DEPARTMENT have any EPA violations?
Yes, POSTVILLE WATER DEPARTMENT has 7 EPA violation(s) on record, with the most recent in 2023. Violation types include MON, MR.
How many people does POSTVILLE WATER DEPARTMENT serve?
POSTVILLE WATER DEPARTMENT serves approximately 2,513 people, Iowa. The system provides water to 1 community: Postville.
What type of water does POSTVILLE WATER DEPARTMENT provide?
POSTVILLE WATER DEPARTMENT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA0375053.
How does POSTVILLE WATER DEPARTMENT compare to other utilities in Iowa?
POSTVILLE WATER DEPARTMENT scores 90/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Iowa state page for a full comparison of water systems.