Is AWA, TANNER's water safe to drink?
AWA, TANNER has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 4,940 people get their water from it, across 1,758 connections.
AWA, TANNER's record against the rest of the country
AWA, TANNER has 8 violations on record in total, 3 of thems health-based - ranking it 5,389th of 12,903 systems by violation count, the 58th percentile nationally.
How AWA, TANNER compares within CA
CA's 803 covered systems average 5.8 health-based violations each; AWA, TANNER carries 3, not more than typical for the state. 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 AWA, TANNER is from 2024-01-12 (health-based: 2003-01-11). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
AWA, TANNER'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: Surface Water Treatment Rule
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
AWA, TANNER'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 8 logged violations can see. The guide to what this data misses covers that gap.