B65/100
Mishawaka Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 49,675 residents · Indiana
What's In Mishawaka's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
2
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 290.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.009 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
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
MISHAWAKA UTILITIES
Population Served
49,675
Water Source
Groundwater
System ID
IN5271009
Frequently Asked Questions About Mishawaka Water
Is Mishawaka tap water safe to drink?
Mishawaka, Indiana tap water receives a grade of B (65/100), which is considered good. Out of 66 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 2 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 Mishawaka's water?
Of the 66 contaminants tested in Mishawaka's water supply, the most notable include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Mishawaka have any water quality violations?
Yes, Mishawaka has 9 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, TT, MR. 5 of these are health-based violations, which are the most serious category.
Do I need a water filter in Mishawaka?
Mishawaka 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. 2 contaminant(s) exceed these stricter goals.
Where does Mishawaka's tap water come from?
Mishawaka's drinking water is sourced from groundwater and supplied by MISHAWAKA UTILITIES. The system serves approximately 49,675 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Mishawaka'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. Mishawaka'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 Mishawaka's water compare to other cities in Indiana?
Mishawaka's water quality score of 65/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Indiana state page to see how all cities in the state compare.
What should I do if I'm concerned about Mishawaka's water quality?
If you have concerns about Mishawaka'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 (MISHAWAKA UTILITIES) 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.