- EPA's UCMR 5 testing looked for 30 contaminants here and found 2.
- Lithium: found in 1 of 4 samples, average 3.33 µg/L, highest 13.3 µg/L (EPA UCMR 5 testing, Jul 2023–Apr 2024)
Public EPA test results
What EPA records show for W Jefferson WW District 2
EPA system ID LA1051004 · serves Jefferson Parish County, LA · about 140,264 people (EPA records)
Here's what EPA has on file for this water system: its testing for newer contaminants like PFAS (UCMR 5), lead testing and violations. It's not a test of your tap, and there's no Water Score here.
Public EPA test results
W Jefferson WW District 2 (EPA LA1051004)
What EPA records show for W Jefferson WW District 2, as of October 14, 2026
Health-standard violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, Total Haloacetic Acids (HAA5), Apr 2022–Jun 2023 (EPA SDWIS).
Lead: 9 in 10 homes tested came in at or below 2.37 ppb, at or below EPA's 15 ppb action level (latest EPA result for a testing period that ran on or after July 1, 2021: Jan 1, 2023–Dec 31, 2025). This is one number for the whole water system, from homes the utility tested. It isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 2.
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does W Jefferson WW District 2 use chloramine?
We didn't find chloramine in W Jefferson WW District 2's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)