We read 6 results from The Cape Master System’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Water system ID NC0465199 · 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 |
|---|---|---|---|---|
| Radium (combined 226 + 228)as reported · range ND to 1.1 · 2025 report, page 4 | 1.1 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Chlorineas reported · range 0.5 to 2.9 · 2025 report, page 4 | 1.24 ppm | None set | 4 ppm | Below the legal limit |
| Dalapon (herbicide)as reported · range ND to 2.88 · 2025 report, page 4 | 2.88 ppb | 200 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)as reported · range 7 to 50 · 2025 report, page 4 | 43.3 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)as reported · range 16.6 to 58.8 · 2025 report, page 4 | 48.6 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideas reported · range ND to 0.27 · 2025 report, page 4 | 0.27 ppm | 1 ppm | 4 ppm | Below the health goal |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper. 3 numbers we weren’t sure about are held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in The Cape Master System’s water between Jan 2025 and Jul 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- HFPO-DA (GenX)8.4 pptFound in 2 of 24 samples · highest resultNo federal limit in force for this one
- PFBS4.6 pptFound in 5 of 24 samples · highest resultNo federal limit in force for this one
- Lithium17.5 ppbFound in 3 of 24 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.
Radium and uranium
Found: Radium (combined 226 + 228)
What removes it: Reverse osmosis.
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