MOUNT PLEASANT: EPA violation history, explained
MOUNT PLEASANT had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 21,688 people get their water from it, across 5,618 connections.
How this compares nationally
MOUNT PLEASANT has 5 violations on record in total, 1 of them health-based - ranking it 8,685th of 12,903 systems by violation count, the 33th percentile nationally.
How MOUNT PLEASANT compares within MI
Among the 390 MI systems in this dataset, the average is 1.3 health-based violations - MOUNT PLEASANT's 1 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for MOUNT PLEASANT is from 2023-01-10 (health-based: 2022-01-09). Last reported to EPA: 06/23/2026.
What kind of problem, specifically
MOUNT PLEASANT's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Interim Enhanced Surface Water Treatment Rule
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
Everything on this page is MOUNT PLEASANT's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 1 health-based violation on file for MOUNT PLEASANT - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.