A91/100
HUMBOLDT MUNICIPAL WATER DEPT — Water Quality Report 2026
Serving 4,792 people · Iowa
Water Source
Groundwater Under Influence of Surface Water
County
—
System ID
IA4641064
Violations
2
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 HUMBOLDT MUNICIPAL WATER DEPT
Is HUMBOLDT MUNICIPAL WATER DEPT water safe to drink?
HUMBOLDT MUNICIPAL WATER DEPT water receives a grade of A (91/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has HUMBOLDT MUNICIPAL WATER DEPT detected?
31 contaminants were tested in HUMBOLDT MUNICIPAL WATER DEPT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does HUMBOLDT MUNICIPAL WATER DEPT have any EPA violations?
Yes, HUMBOLDT MUNICIPAL WATER DEPT has 2 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, MCL. 1 are health-based violations.
How many people does HUMBOLDT MUNICIPAL WATER DEPT serve?
HUMBOLDT MUNICIPAL WATER DEPT serves approximately 4,792 people, Iowa. The system provides water to 1 community: Humboldt.
What type of water does HUMBOLDT MUNICIPAL WATER DEPT provide?
HUMBOLDT MUNICIPAL WATER DEPT sources its water from groundwater under influence of surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is IA4641064.
How does HUMBOLDT MUNICIPAL WATER DEPT compare to other utilities in Iowa?
HUMBOLDT MUNICIPAL WATER DEPT scores 91/100 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.