B70/100
MONTICELLO WATER SUPPLY — Water Quality Report 2026
Serving 4,040 people · Iowa
Water Source
Groundwater
County
—
System ID
IA5343098
Violations
11
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
No violations in the past 5 years
Full EPA compliance since 2013.
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 MONTICELLO WATER SUPPLY
Is MONTICELLO WATER SUPPLY water safe to drink?
MONTICELLO WATER SUPPLY water receives a grade of B (70/100), which is considered good. 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 MONTICELLO WATER SUPPLY detected?
31 contaminants were tested in MONTICELLO WATER SUPPLY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MONTICELLO WATER SUPPLY have any EPA violations?
Yes, MONTICELLO WATER SUPPLY has 11 EPA violation(s) on record, with the most recent in 2013. Violation types include Other, MCL, MR. 4 are health-based violations.
How many people does MONTICELLO WATER SUPPLY serve?
MONTICELLO WATER SUPPLY serves approximately 4,040 people, Iowa. The system provides water to 1 community: Monticello.
What type of water does MONTICELLO WATER SUPPLY provide?
MONTICELLO WATER SUPPLY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA5343098.
How does MONTICELLO WATER SUPPLY compare to other utilities in Iowa?
MONTICELLO WATER SUPPLY scores 70/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Iowa state page for a full comparison of water systems.