A90/100
North Mankato Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 14,448 residents · Minnesota
What's In North Mankato's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
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 2019.
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
Water Utility Details
North Mankato
Population Served
14,448
Water Source
Groundwater
System ID
MN1520005
Frequently Asked Questions About North Mankato Water
Is North Mankato tap water safe to drink?
North Mankato, Minnesota tap water receives a grade of A (90/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in North Mankato's water?
Of the 66 contaminants tested in North Mankato's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does North Mankato have any water quality violations?
Yes, North Mankato has 3 EPA violation(s) on record, with the most recent in 2019. Violation types include MR, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in North Mankato?
North Mankato water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does North Mankato's tap water come from?
North Mankato's drinking water is sourced from groundwater and supplied by North Mankato. The system serves approximately 14,448 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is North Mankato's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. North Mankato's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does North Mankato's water compare to other cities in Minnesota?
North Mankato's water quality score of 90/100 earns a grade of A, which is considered excellent. This places North Mankato among the better-performing water systems in Minnesota. Visit our Minnesota state page to see how all cities in the state compare.
What should I do if I'm concerned about North Mankato's water quality?
If you have concerns about North Mankato's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (North Mankato) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.