What's in Rock County Rural Water System's water?

Rock County Rural Water System's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. It serves 2,919 people through 821 service connections.

How this compares nationally

5 total violations and 0 health-based ones put Rock County Rural Water System at the 13th percentile nationally for violation burden, rank 11,239 of 12,903.

How Rock County Rural Water System compares within MN

MN's 254 covered systems average 0.8 health-based violations each; Rock County Rural Water System carries 0, not 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 Rock County Rural Water System is from 2015-01-11. Last reported to EPA: 05/28/2026.

What this data is and is not

This is what Rock County Rural Water System 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 5 logged violations can see. The guide to what this data misses covers that gap.