We read 18 results from Carrollton Pws’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 3,300 people · Water system ID MO2010140 · 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 |
|---|---|---|---|---|
| pHhighest measured · range 8.65 to 8.65 · sampled 2023 · 2025 report, page 3 | 8.65 | — | — | Outside the normal rangeAlkaline water can leave scale |
| Bariumhighest measured · range 0.12 to 0.12 · sampled 2023 · 2025 report, page 2 | 0.12 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 14.8 to 14.8 · sampled 2023 · 2025 report, page 3 | 14.8 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 0.01 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 13.2 to 13.2 · DBPDUAL-01 · 2025 report, page 2 | 13 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 51.7 to 51.7 · DBPDUAL-01 · 2025 report, page 2 | 52 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.64 to 0.64 · sampled 2023 · 2025 report, page 2 | 0.64 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range 0.07 to 0.07 · 2025 report, page 2 | 0.07 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfatehighest measured · range 35 to 35 · sampled 2023 · 2025 report, page 3 | 35 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 151 to 151 · sampled 2023 · 2025 report, page 3 | 151 ppm | — | 500 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 111 to 111 · sampled 2023 · 2025 report, page 3 | 111 ppm | None set | None | No health limit |
| Calciumhighest measured · range 19 to 19 · sampled 2023 · 2025 report, page 3 | 19 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 4.77 to 4.77 · sampled 2023 · 2025 report, page 3 | 4.77 gpg (81.6 ppm) | — | — | Moderately hard |
| Lithiumhighest measured · range 12 to 16 · sampled 2024 · highest of 2 sources · 2025 report, page 3 | 16 ppb | None set | None | No health limit |
| Magnesiumhighest measured · range 8.3 to 8.3 · sampled 2023 · 2025 report, page 3 | 8.3 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 3.75 to 3.75 · sampled 2023 · 2025 report, page 3 | 3.75 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 9.85 to 9.85 · sampled 2023 · 2025 report, page 3 | 9.85 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Carrollton Pws’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.
- Lithium16 ppbFound in 2 of 2 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 in this report is above a health goal or legal limit. If you’re bothered by taste, smell, hardness or spots, or your home has older pipes, the filter catalog and buyer questions can help you pick, and a test of your own tap shows what your plumbing adds.
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