What's in ROLLA PWS's water?

ROLLA PWS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 20,800 people through 8,099 service connections.

Ranked against every other system in this dataset

ROLLA PWS has 4 violations on record in total, 1 of them health-based - ranking it 8,817th of 12,903 systems by violation count, the 32th percentile nationally.

Against the MO average

ROLLA PWS's 1 health-based violations sit within the MO average of 6.1, across 327 systems statewide. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

ROLLA PWS's most recent violation on record is dated 2025-02-07, with the most recent health-based one dated 2004-01-08. Last reported to EPA: 06/16/2026.

The concern categories on record

ROLLA PWS'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)

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 ROLLA PWS's record does not cover

ROLLA PWS's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. This record - 1 health-based violation on file for ROLLA PWS - 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.