ROCKFORD: EPA violation history, explained
ROCKFORD has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 7,160 people get their water from it, across 2,521 connections.
ROCKFORD's record against the rest of the country
3 total violations and 3 health-based ones put ROCKFORD at the 56th percentile nationally for violation burden, rank 5,619 of 12,903.
How ROCKFORD compares within MI
MI's 390 covered systems average 1.3 health-based violations each; ROCKFORD carries 3, more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for ROCKFORD is from 2013-01-09 (health-based: 2013-01-09). Last reported to EPA: 06/23/2026.
What kind of problem, specifically
ROCKFORD'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: Coliform (TCR)
- Disinfection byproducts - flagged from: TTHM
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
This is what ROCKFORD reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 3 health-based violations on file for ROCKFORD - 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.