DrinkingWaterCheck

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

DELANO, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 51,428 people get their water from it, across 10,295 connections.

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

DELANO, CITY OF has 47 violations on record in total, 42 of thems health-based - ranking it 358th of 12,903 systems by violation count, the 97th percentile nationally.

Against the CA average

DELANO, CITY OF's 42 health-based violations sit above the CA average of 5.8, across 803 systems statewide. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

DELANO, CITY OF's most recent violation on record is dated 2012-01-10, with the most recent health-based one dated 2012-01-10. Last reported to EPA: 06/22/2026.

The concern categories on record

DELANO, 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:

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 DELANO, CITY OF's record does not cover

This is what DELANO, CITY OF 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 47 logged violations can see. The guide to what this data misses covers that gap.