We read 6 results from City of Hattiesburg’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 43,449 people · Water system ID MS0180008 · Read the district’s 2025 report (opens in a new tab)
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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 |
|---|---|---|---|---|
| Fluorideas reported · range 0.1 to 1.19 · listed as a violation in the report · Wells · 2025 report, page 6 | 1.19 ppm | 1 ppm | 4 ppm | Above the health goal1.2x the health goal |
| Bariumas reported · range 0.04 to 0.07 · listed as a violation in the report · Wells · 2025 report, page 6 | 0.05 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorineas reported · range 1.62 to 2.2 · listed as a violation in the report · Distribution system · 2025 report, page 6 | 1.62 ppm | None set | 4 ppm | Below the legal limit |
| Disinfection byproducts (TTHM)as reported · range 2.59 to 2.69 · listed as a violation in the report · Distribution system · 2025 report, page 6 | 2.69 ppb | None set | 80 ppb | Below the legal limit |
| Nitrite (as N)as reported · range 0.02 to 0.22 · listed as a violation in the report · Wells · 2025 report, page 6 | 0.22 ppm | 1 ppm | 1 ppm | Below the health goal |
| Lithiumhighest measured · printed as 0.0092 mg/L · Wells · 2025 report, page 7 | 9.2 ppb | 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in City of Hattiesburg’s water between Feb 2024 and Aug 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium9.2 ppbFound in 1 of 12 samples · highest resultBelow EPA’s health reference level of 10 ppb
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.
Fluoride
Found: Fluoride
What removes it: Reverse osmosis.
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