Skip to main content
WaterSafeCheck

Monticello, MN Tap Water Quality

Water safety reports for all 16 ZIP codes in Monticello, Minnesota

Average Score

65/100

Health Violations

16

ZIP Codes

16

High Lead Risk

0

of 16 ZIP codes

C

About Tap Water in Monticello, MN

Water quality in Monticello, MN is currently rated with a moderate C grade (average score: 65/100 across 16 ZIP codes). This rating indicates that while the water provided by Monticello is treated and regulated, there have been notable compliance issues or contaminant detections recently. Residents should stay informed about the specific challenges affecting their local supply.

The accumulation of 16 health-based violations over the past 5 years highlights systemic challenges within Monticello's water infrastructure. When violations occur, it means that drinking water tests revealed contaminant levels exceeding safe limits, triggering mandatory corrective actions by Minnesota Department of Health. The city relies on ground water, which may require significant treatment upgrades to address these recurring issues.

Fortunately, the modeled risk for widespread lead exposure in Monticello's municipal water is relatively low compared to national averages. However, because lead typically enters drinking water through the corrosion of older, individual home plumbing rather than the main supply lines, residents in homes built before 1986 should still exercise caution by running the tap before use.

Health-Based Contaminant Violations in Monticello

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Monticello water systems over the past 5 years.

Lead

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Monticello, MN

Click any ZIP code for the full water quality report

C
55362

Monticello, MN

Score: 69/1001 violation
C
55365

Monticello, MN

Score: 65/1001 violation
C
55561

Monticello, MN

Score: 65/1001 violation
C
55563

Monticello, MN

Score: 65/1001 violation
C
55565

Monticello, MN

Score: 65/1001 violation
C
55580

Monticello, MN

Score: 65/1001 violation
C
55581

Monticello, MN

Score: 65/1001 violation
C
55582

Monticello, MN

Score: 65/1001 violation
C
55584

Monticello, MN

Score: 65/1001 violation
C
55585

Monticello, MN

Score: 65/1001 violation
C
55586

Monticello, MN

Score: 65/1001 violation
C
55587

Monticello, MN

Score: 65/1001 violation
C
55588

Monticello, MN

Score: 65/1001 violation
C
55589

Monticello, MN

Score: 65/1001 violation
C
55590

Monticello, MN

Score: 65/1001 violation
C
55591

Monticello, MN

Score: 65/1001 violation

Frequently Asked Questions — Monticello Water Quality

Is tap water safe to drink in Monticello, MN?+
Tap water in Monticello has a grade of C, indicating compliance concerns in recent years. Families with young children or pregnant women should consider using a certified NSF/ANSI 53 water filter for drinking and cooking.
What is the water quality score for Monticello?+
The average water quality score across 16 ZIP codes in Monticello, MN is 65/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Monticello have lead in its tap water?+
Lead risk ratings in Monticello are relatively low based on EPA monitoring data. However, lead in home plumbing is a separate concern — if your home was built before 1986, individual tap testing is recommended.
How do I get the water quality report for Monticello?+
Each ZIP code in Monticello has a full water quality report on this site — click any ZIP code below. You can also get the annual Consumer Confidence Report (CCR) from your local water utility. The CCR is required to be published every year by July 1 and contains actual contaminant measurements and violation history.
Where does Monticello's tap water come from?+
Tap water in Monticello, MN primarily comes from ground water. Groundwater systems pump water from underground aquifers, which is naturally filtered through soil and rock but can still contain naturally occurring contaminants.

Looking for water quality in other cities in Minnesota?

View All Cities in Minnesota →