Is ADELANTO, CITY OF's water safe to drink?
ADELANTO, 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: 39,930, over 8,318 connections.
How this compares nationally
ADELANTO, CITY OF has 21 violations on record in total, 12 of thems health-based - ranking it 1,627th of 12,903 systems by violation count, the 87th percentile nationally.
How ADELANTO, CITY OF compares within CA
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - ADELANTO, CITY OF's 12 is above that. 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 ADELANTO, CITY OF is from 2024-01-01 (health-based: 2011-01-04). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
ADELANTO, 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)
- Other regulated metals - flagged from: Arsenic; Fluoride
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 this data is and is not
Everything on this page is ADELANTO, CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 21 logged violations can see. The guide to what this data misses covers that gap.