We read 24 results from E Jefferson Ww District 1’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 275,163 people · Water system ID LA1051001 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Aluminumhighest measured · range 0.01 to 0.23 · printed as 230 ppb · East Bank · 2025 report, page 6 | 0.23 ppm | — | 0.2 ppm guideline | Above the guideline1.2x the guideline (taste, odor or stains; not a health limit) |
| Arsenichighest measured · range 1.1 to 3.83 · East Bank · 2025 report, page 5 | 2.12 ppb | 0.004 ppb | 10 ppb | Above the health goal530x the health goal |
| Atrazineaverage · range ND to 0.51 · East Bank · 2025 report, page 5 | 0.2 ppb | 0.15 ppb | 3 ppb | Above the health goal1.3x the health goal |
| Copper90th percentile of 50 homes tested, 0 over the action level · Customer taps (East Bank, 50 sites) · 2025 report, page 5 | 0.44 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal1.5x the health goal |
| Gross beta (radioactivity)highest measured · range 1.97 to 2.78 · East Bank · 2025 report, page 5 | 2.78 pCi/L | 0 pCi/L | 50 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of 50 homes tested, 0 over the action level · Customer taps (East Bank, 50 sites) · 2025 report, page 5 | 2.65 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal13x the health goal |
| Bariumaverage · range 0.06 to 0.1 · East Bank · 2025 report, page 5 | 0.08 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloraminehighest running annual average · range 0.5 to 3.74 · Distribution system (East Bank) · 2025 report, page 5 | 1.9 ppm | None set | 4 ppm | Below the legal limit |
| Chloridehighest measured · range 21.2 to 62.3 · East Bank · 2025 report, page 6 | 62.3 ppm | — | 250 ppm guideline | Within the guideline |
| Chromium (total)average · range 0.26 to 0.34 · East Bank · 2025 report, page 5 | 0.29 ppb | None set | 100 ppb | Below the legal limit |
| Dalapon (herbicide)highest measured · range ND to 0.89 · East Bank · 2025 report, page 5 | 0.89 ppb | 200 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 1.79 to 82.7 · Distribution system (East Bank) · 2025 report, page 5 | 52 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 14.8 to 122 · Distribution system (East Bank) · 2025 report, page 5 | 71 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.52 to 0.95 · East Bank · 2025 report, page 5 | 0.7 ppm | 1 ppm | 4 ppm | Below the health goal |
| Mercuryhighest measured · range ND to 0.08 · East Bank · 2025 report, page 5 | 0.08 ppb | 1.2 ppb | 2 ppb | Below the health goal |
| Nitrate (as N)average · range 0.11 to 0.3 · East Bank · 2025 report, page 5 | 0.26 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 7.08 to 7.79 · East Bank · 2025 report, page 6 | 7.79 | — | — | Normal range |
| Simazineaverage · range 0.44 to 2.65 · East Bank · 2025 report, page 5 | 1.19 ppb | 4 ppb | 4 ppb | Below the health goal |
| Sulfatehighest measured · range 29 to 76.9 · East Bank · 2025 report, page 6 | 76.9 ppm | — | 250 ppm guideline | Within the guideline |
| Turbidity (cloudiness)highest measured · East Bank · 2025 report, page 5 | 0.38 NTU | None set | 1 NTU | Below the legal limit |
| Bromidehighest measured · range ND to 40 · printed as 0.04 ppm · East Bank · 2025 report, page 6 | 40 ppb | None set | None | No health limit |
| Hardnesshighest measured · range 4.43 to 11.1 · East Bank · 2025 report, page 6 | 11.1 gpg (190 ppm) | — | — | Very hard |
| Potassiumhighest measured · range 2.74 to 11.6 · East Bank · 2025 report, page 6 | 11.6 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 15.3 to 102 · East Bank · 2025 report, page 6 | 102 ppm | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper. 1 number we weren’t sure about is held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in E Jefferson Ww District 1’s water between Jul 2023 and Apr 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium12.4 ppbFound in 3 of 12 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Industrial chemicals and pesticides
Found: Atrazine
What removes it: Carbon block or RO.
Lead
Found: Copper, Lead
What removes it: Reverse osmosis or Certified carbon block or RO.
Radium and uranium
Found: Gross beta (radioactivity)
What removes it: Reverse osmosis.
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