GRETNA WATERWORKS: EPA violation history, explained
GRETNA WATERWORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 17,026 people get their water from it, across 6,935 connections.
GRETNA WATERWORKS's record against the rest of the country
GRETNA WATERWORKS has 23 violations on record in total, 19 of thems health-based - ranking it 969th of 12,903 systems by violation count, the 92th percentile nationally.
How GRETNA WATERWORKS compares within LA
LA's 347 covered systems average 12.6 health-based violations each; GRETNA WATERWORKS carries 19, more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for GRETNA WATERWORKS is from 2022-01-07 (health-based: 2015-01-08). Last reported to EPA: 06/23/2026.
What kind of problem, specifically
GRETNA WATERWORKS'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); Surface Water Treatment Rule
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
- Disinfection byproducts - flagged from: TTHM
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
GRETNA WATERWORKS'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 23 logged violations can see. The guide to what this data misses covers that gap.