EWG Tap Water Database
Raleigh water quality
- Source
- Neuse River / Falls Lake
- Hardness
- 7–10 GPG
- Disinfected with
- chlorine
What's in Raleigh tap water
| Contaminant | Detected | Health guideline | Legal limit | Over guideline |
|---|---|---|---|---|
| Haloacetic Acids (HAA9) Disinfection ByproductChlorination byproducts linked to cancer and reproductive harm. | 19.9 ppb | 0.06 ppb | No legal limit | 332× |
| Total Trihalomethanes Disinfection ByproductForm when chlorine treats surface water; linked to bladder cancer and pregnancy complications. | 21.7 ppb | 0.15 ppb | 80 ppb | 145× |
| Bromodichloromethane Disinfection ByproductCarcinogenic trihalomethane byproduct; linked to liver, kidney, and reproductive harm. | 5.23 ppb | 0.06 ppb | No legal limit | 87× |
| PFOS (Forever Chemical) PFASAccumulates permanently in the body; linked to cardiovascular disease and fetal development harm. | 1.50 ppt | 0.3 ppt | 4 ppt (proposed) | 5× |
| Chromium-6 Heavy MetalThe Erin Brockovich carcinogen — no federal legal limit exists for its hexavalent form. | 0.056 ppb | 0.02 ppb | No legal limit | 2.8× |
Figures from the EWG Tap Water Database.
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Raleigh water questions
- Is Raleigh water hard?
- Raleigh water runs about 7–10 GPG. That is hard enough to leave scale on fixtures, spot glassware, and shorten the life of water heaters and dishwashers.
- What is Raleigh water treated with?
- Raleigh's supply comes from Neuse River / Falls Lake and is disinfected with chlorine. Free chlorine is comparatively easy to remove with quality carbon filtration.
- Where do these Raleigh water figures come from?
- The EWG Tap Water Database, which compiles the utility's own state-reported testing results.
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