We read 2 results from City of Mont Belvieu’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 12,864 people · Water system ID TX0360017 · 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 |
|---|---|---|---|---|
| Arsenichighest measured · range ND to 5.2 · 2025 report, page 10 | 5.2 ppb | 0.004 ppb | 10 ppb | Above the health goal1,300x the health goal |
| Fluoridehighest measured · 2025 report, page 10 | 2.48 ppm | 1 ppm | 4 ppm | Above the 2 ppm secondary standard1.2x the 2 ppm secondary standard (EPA's level to prevent tooth discoloration, also used as health guidance); below the 4 ppm legal 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 Mont Belvieu’s water between Apr 2025 and Oct 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium26.7 ppbFound in 6 of 6 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.
Fluoride
Found: Fluoride
What removes it: Reverse osmosis.
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