What's in RIALTO, CITY OF's water?

RIALTO, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 54,453, over 11,996 connections.

RIALTO, CITY OF's record against the rest of the country

3 total violations and 2 health-based ones put RIALTO, CITY OF at the 46th percentile nationally for violation burden, rank 6,989 of 12,903.

Against the CA average

Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - RIALTO, CITY OF's 2 is at or below that. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

RIALTO, CITY OF's most recent violation on record is dated 2013-01-01, with the most recent health-based one dated 1993-01-08. Last reported to EPA: 06/22/2026.

The concern categories on record

RIALTO, CITY OF'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 RIALTO, CITY OF's record does not cover

RIALTO, CITY OF'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 3 logged violations can see. The guide to what this data misses covers that gap.