Tap water · NC
Raleigh Water
EPA system ID NC0392010 · serves about 650,000 people. Every US utility must publish an annual water quality report — here’s the official one (2025), and below it, our plain-English translation.
Read the official report →What Raleigh Water found in 2025
12 detected analytes from the utility’s own annual report, hand-normalized — nothing was near or over a federal health-based limit.
| Detected | Level | Limit | % of limit | Status |
|---|---|---|---|---|
| Chloramines | 2.8 ppm | 4 ppm | 70% | Within limit |
| Chlorine | 2.26 ppm | 4 ppm | 57% | Within limit |
| Total Trihalomethanes [TTHMs] | 34.2 ppb | 80 ppb | 43% | Within limit |
| Haloacetic Acids [HAA5] | 22 ppb | 60 ppb | 37% | Within limit |
| Sulfate | 46.3 ppm | 250 ppm | 19% | Within limit |
| Fluoride | 0.71 ppm | 4 ppm | 18% | Within limit |
| Copper (90th percentile) | 0.04 ppm | 1.3 ppm | 3% | Within limit |
| Alkalinity | 29.8 ppm | — | — | No federal limit |
| Hardness, Total [as CaCO3] | 25.2 ppm | — | — | No federal limit |
| Sodium | 24.3 ppm | — | — | No federal limit |
| pH | 8.4 units | — | — | No federal limit |
| Turbidity (highest) | 0.08 NTU | — | — | No federal limit |
Levels and limits are as printed in the utility’s report (“limit” is the EPA MCL, action level, residual limit, or secondary guideline that applies to that row; “ND” = not detected). Utilities publish these reports annually — we re-check every covered utility each July, after the federal publication deadline. Detected doesn’t mean dangerous — most detections sit far below their limits. This is education, not medical advice.
Your tap, if it were a bottle
How Raleigh Water water stacks up against the bottled aisle
Same minerals, same units — the tap values below come from the utility’s report, placed next to the closest match in our bottled-water database.
| Mineral | Your tap | Closest bottled match |
|---|---|---|
| Sodium | 24.3 mg/L | Buxton at 24 mg/L |
| Sulfate | 46.3 mg/L | Vichy Catalan at 48 mg/L |
Tap values are the headline levels from the utility’s annual report (often a highest or average figure); bottled values are label- or report-derived. A closest match is a numeric comparison, not an equivalence or an endorsement.
Zip codes covered
27601 · 27603 · 27604 · 27605 · 27606 · 27607 · 27608 · 27609 · 27610 · 27612 · 27613 · 27614 · 27615 · 27616 · 27617
Boundary zips partially served by other systems are deliberately unlisted — check your exact zip.