Water Quality Score: 20/100 (Grade F)
Water Quality Score
20/100
42.0 points below state average
Letter Grade
F
Poor quality
Performance Tier
poor
Based on EPA standards
15.8 ppb
EPA Action Level: 15 ppb
⚠ Exceeds action level
11.6 ppm
EPA MCL: 10 ppm
⚠ Exceeds MCL
Not Detected
Forever chemicals
✓ No PFAS detected
Yes
Health-based violations
⚠ Has violations
Mankato tap water received a Grade F (20/100) and is may have some concerns. Lead level: 15.8 ppb (exceeds EPA action level). Nitrate level: 11.6 ppm (exceeds EPA limit). No PFAS detected.
Mankato water has been tested for lead (15.8 ppb (exceeds EPA action level)), nitrate (11.6 ppm (exceeds EPA limit)), and PFAS (No PFAS detected). This system has EPA violations.
Mankato scored 20/100, which is 42 points below the Minnesota state average of 62. It ranks among the poor tier of water systems in the state.
Given Mankato's Grade F rating, you may want to consider a water filter, especially if you have concerns about lead.
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