We read 15 results from Town of Apex’s 2024 water quality report. No results over a legal limit or above a health goal.
Serves about 76,818 people · Water system ID NC0392045 · Read the district’s 2024 report (opens in a new tab)
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Results from the 2024 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 |
|---|---|---|---|---|
| Bromatehighest running annual average · range ND to 1.8 · listed as a violation in the report · Cary/Apex plant · 2024 report, page 10 | Not detected | 0.1 ppb | 10 ppb | Not detected |
| Chloraminehighest running annual average · range 1.04 to 3.98 · listed as a violation in the report · Distribution system · 2024 report, page 9 | 3.23 ppm | None set | 4 ppm | Below the legal limit |
| Chlorinehighest running annual average · range 0.8 to 3.6 · listed as a violation in the report · Distribution system · 2024 report, page 9 | 2.2 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2022 · Customer taps · 2024 report, page 9 | 0.11 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 8 to 19 · listed as a violation in the report · Distribution system · 2024 report, page 9 | 19 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 20 to 53 · listed as a violation in the report · Distribution system · 2024 report, page 9 | 41 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridesingle sample · listed as a violation in the report · Cary/Apex plant · 2024 report, page 10 | 0.84 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2022 · Customer taps · 2024 report, page 9 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| pHaverage · range 7.15 to 8.93 · Cary/Apex plant · 2024 report, page 11 | 7.97 | — | — | Normal range |
| Sulfatesingle sample · Cary/Apex plant · 2024 report, page 11 | 35 ppm | — | 250 ppm guideline | Within the guideline |
| Turbidity (cloudiness)highest measured · listed as a violation in the report · Cary/Apex plant · 2024 report, page 11 | 0.1 NTU | None set | 1 NTU | Below the legal limit |
| PFBA (a PFAS)average · range ND to 7.6 · Cary/Apex plant · 2024 report, page 10 | 3.8 ppt | None set | None | No health limit |
| PFHxA (a PFAS)average · range 3.3 to 4 · Cary/Apex plant · 2024 report, page 10 | 3.65 ppt | None set | None | No health limit |
| PFPeA (a PFAS)average · range 3 to 4.9 · Cary/Apex plant · 2024 report, page 10 | 3.95 ppt | None set | None | No health limit |
| Sodiumsingle sample · Cary/Apex plant · 2024 report, page 11 | 26 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 Town of Apex’s water between Aug 2023 and May 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFBS4 pptFound in 1 of 4 samples · highest resultNo federal limit in force for this one
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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