We read 9 results from Lihue-Kapaa’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 34,854 people · Water system ID HI0000400 · 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 |
|---|---|---|---|---|
| Bariumhighest measured · range ND to 0.02 · listed as a violation in the report · sampled 2024 · Wells · 2025 report, page 9 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chromium (total)highest measured · range ND to 7 · listed as a violation in the report · sampled 2024 · Wells · 2025 report, page 9 | 7 ppb | None set | 100 ppb | Below the legal limit |
| Copper90th percentile of 35 homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 10 | 0.17 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range ND to 8 · listed as a violation in the report · Distribution system · 2025 report, page 10 | 6 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 5 to 51 · listed as a violation in the report · Distribution system · 2025 report, page 10 | 34 ppb | None set | 80 ppb | Below the legal limit |
| Lead90th percentile of 35 homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 10 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range ND to 1.9 · listed as a violation in the report · Wells · 2025 report, page 9 | 1.9 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfatehighest measured · range ND to 36 · listed as a violation in the report · Wells · 2025 report, page 12 | 36 ppm | — | 250 ppm guideline | Within the guideline |
| Sodiumhighest measured · range 9 to 56 · listed as a violation in the report · sampled 2024 · Wells · 2025 report, page 12 | 56 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.
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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