St Tammany Water District 3, LA Water Quality
What's in St Tammany Water District 3's water?
St Tammany Water District 3 has at least one health-based violation EPA's own compliance-tracking system still lists as unaddressed - the required fix has not been reported complete. Population served: 2,920, over 800 connections.
How this compares nationally
Out of 12,903 systems in this dataset, St Tammany Water District 3 ranks 1,340th by violation burden (90th percentile) - 43 violations total, 14 health-based.
Against the LA average
LA's 347 covered systems average 12.6 health-based violations each; St Tammany Water District 3 carries 14, more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
St Tammany Water District 3's most recent violation on record is dated 2026-04-02, with the most recent health-based one dated 2015-07-08. Last reported to EPA: 06/23/2026.
The concern categories on record
St Tammany Water District 3'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); Groundwater 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 St Tammany Water District 3's record does not cover
This is what St Tammany Water District 3 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. This record - 14 health-based violations on file for St Tammany Water District 3 - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.