DrinkingWaterCheck

GRIMES WATER SUPPLY: EPA violation history, explained

GRIMES WATER SUPPLY has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 17,809 people through 6,245 service connections.

Ranked against every other system in this dataset

GRIMES WATER SUPPLY has 16 violations on record in total, 9 of thems health-based - ranking it 2,224th of 12,903 systems by violation count, the 83th percentile nationally.

Against the IA average

IA's 203 covered systems average 3.5 health-based violations each; GRIMES WATER SUPPLY carries 9, more than typical for the state. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

GRIMES WATER SUPPLY's most recent violation on record is dated 2021-01-01, with the most recent health-based one dated 2011-01-08. Last reported to EPA: 06/17/2026.

The concern categories on record

GRIMES WATER SUPPLY'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:

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 GRIMES WATER SUPPLY's record does not cover

This is what GRIMES WATER SUPPLY 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 16 logged violations can see. The guide to what this data misses covers that gap.