Tap water in CF63, Vale of GlamorganSafe to drink.
Supplied by Dŵr Cymru Welsh Water. 881 samples, 23 substances, latest on 19 December 2024. Everything is inside the legal limit, and nothing comes close to it.
9.4 / 10
The tank is as full as the score.
What to do about it

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BRITA Marella XL + MAXTRA PRO
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Basic chlorine and taste improvement on a budget
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What's in a glass of CF63 water
Every bubble is a substance the lab measured. The higher it floats, the closer it came to its legal limit, the dashed line at the top.
Trihalomethanes came closest to a limit, at 47% of it. 19 of 20 substances used under a quarter of theirs.
- Trihalomethanes47%
- Colour23%
- Nitrite14%
- Bromate9%
- Iron9%
- Fluoride7%
- Nitrate7%
- Turbidity7%
- Mercury4%
- Aluminium4%
- Copper4%
- Nickel3%
- Boron3%
- Lead2%
- Arsenic1%
- Manganese1%
- Antimony<1%
- Selenium<1%
- Cadmium<1%
- Chromium<1%
- Conductivity 220 µS/cm
- Coliform Bacteria none found
- E. coli none found
All 23 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Conductivity | 220 µS/cm | No legal limit | – |
| Coliform Bacteria | 0 count/100ml | Must be zero | None found |
| Iron | 0.017 mg/L | 0.2 mg/L | 9% |
| Aluminium | 0.0081 mg/L | 0.2 mg/L | 4% |
| E. coli | 0 count/100ml | Must be zero | None found |
| Manganese | 0.00068 mg/L | 0.05 mg/L | 1% |
| Turbidity | 0.27 NTU | 4 NTU | 7% |
| Colour | 4.6 mg/L Pt/Co | 20 mg/L Pt/Co | 23% |
| Bromate | 0.00089 mg/L | 0.01 mg/L | 9% |
| Trihalomethanes | 0.047 mg/L | 0.1 mg/L | 47% |
| Boron | 0.028 mg/L | 1 mg/L | 3% |
| Nickel | 0.00059 mg/L | 0.02 mg/L | 3% |
| Antimony | 0.000047 mg/L | 0.005 mg/L | <1% |
| Mercury | 0.000042 mg/L | 0.001 mg/L | 4% |
| Chromium | 0.000092 mg/L | 0.05 mg/L | <1% |
| Lead | 0.00016 mg/L | 0.01 mg/L | 2% |
| Selenium | 0.00023 mg/L | 0.04 mg/L | <1% |
| Copper | 0.08 mg/L | 2 mg/L | 4% |
| Cadmium | 0.000025 mg/L | 0.005 mg/L | <1% |
| Arsenic | 0.00015 mg/L | 0.01 mg/L | 1% |
| Fluoride | 0.11 mg/L | 1.5 mg/L | 7% |
| Nitrite | 0.072 mg/L | 0.5 mg/L | 14% |
| Nitrate | 3.39 mg/L | 50 mg/L | 7% |
CF63 in short
Tap water in CF63 (Vale of Glamorgan) is supplied by Dŵr Cymru Welsh Water in the Vale of Glamorgan Central zone and scores 9.4 out of 10, against an England and Wales average of 9.0. None of the 23 tested substances came close to a limit. The latest sample is from 19 December 2024.
- 4th cleanest of 5 areas tested in Vale of Glamorgan1 area in Vale of Glamorgan scored lower. The best is CF61 on 9.5.
- Trihalomethanes is the reading closest to its limit, at 47% of the 0.1 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
- Scores higher than 0 of 4 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.
Questions about CF63 water
Is CF63 tap water safe to drink?
Based on the latest tests, CF63 (Vale of Glamorgan) water scores 9.4/10, which is safe. 0 of 23 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.
What contaminants are in CF63 water?
We tested 23 contaminants in CF63 water. None exceeded recommended safe levels.
Who supplies water in CF63?
CF63 (Vale of Glamorgan) is supplied by Dŵr Cymru Welsh Water. You can view their full profile and compliance data on our supplier page.
Should I use a water filter in CF63?
CF63 water scored 9.4/10 with no contaminants above recommended levels. A filter is optional but can improve taste, especially if you notice a chlorine flavour. See our filter recommendations for your area.
Are there PFAS forever chemicals in CF63 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for CF63, and the Environment Agency has no PFAS detections in rivers or groundwater within 10 km of it. That reflects where sampling has happened as much as the water itself.
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