Tap water in CF61, Vale of GlamorganSafe to drink.
Supplied by Dŵr Cymru Welsh Water. 328 samples, 20 substances, latest on 20 December 2024. Everything is inside the legal limit, and nothing comes close to it.
9.5 / 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 CF61 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 35% of it. 16 of 17 substances used under a quarter of theirs.
- Trihalomethanes35%
- Colour23%
- Iron13%
- Turbidity7%
- Nitrate5%
- Bromate5%
- Nickel3%
- Copper3%
- Arsenic3%
- Nitrite3%
- Aluminium3%
- Lead2%
- Manganese1%
- Antimony<1%
- Selenium<1%
- Cadmium<1%
- Chromium<1%
- Coliform Bacteria none found
- E. coli none found
- Conductivity 220 µS/cm
All 20 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Coliform Bacteria | 0 count/100ml | Must be zero | None found |
| E. coli | 0 count/100ml | Must be zero | None found |
| Conductivity | 220 µS/cm | No legal limit | – |
| Iron | 0.025 mg/L | 0.2 mg/L | 13% |
| Aluminium | 0.005 mg/L | 0.2 mg/L | 3% |
| Manganese | 0.00068 mg/L | 0.05 mg/L | 1% |
| Colour | 4.6 mg/L Pt/Co | 20 mg/L Pt/Co | 23% |
| Turbidity | 0.27 NTU | 4 NTU | 7% |
| Trihalomethanes | 0.035 mg/L | 0.1 mg/L | 35% |
| Bromate | 0.00046 mg/L | 0.01 mg/L | 5% |
| Lead | 0.00016 mg/L | 0.01 mg/L | 2% |
| Nickel | 0.00059 mg/L | 0.02 mg/L | 3% |
| Cadmium | 0.000025 mg/L | 0.005 mg/L | <1% |
| Antimony | 0.000036 mg/L | 0.005 mg/L | <1% |
| Copper | 0.058 mg/L | 2 mg/L | 3% |
| Arsenic | 0.00026 mg/L | 0.01 mg/L | 3% |
| Chromium | 0.00012 mg/L | 0.05 mg/L | <1% |
| Selenium | 0.00023 mg/L | 0.04 mg/L | <1% |
| Nitrite | 0.013 mg/L | 0.5 mg/L | 3% |
| Nitrate | 2.61 mg/L | 50 mg/L | 5% |
CF61 in short
Tap water in CF61 (Vale of Glamorgan) is supplied by Dŵr Cymru Welsh Water in the Vale of Glamorgan Central zone and scores 9.5 out of 10, against an England and Wales average of 9.0. None of the 20 tested substances came close to a limit. The latest sample is from 20 December 2024.
- The cleanest tap water of the 5 areas tested in Vale of GlamorganCF61 scores 9.5 out of 10, ahead of CF71 in second place on 9.5.
- Nothing tested came within 40% of its legal limitThe highest was Trihalomethanes at 35% of the 0.1 mg/L maximum. See every reading
- Scores higher than 3 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 CF61 water
Is CF61 tap water safe to drink?
Based on the latest tests, CF61 (Vale of Glamorgan) water scores 9.5/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.
What contaminants are in CF61 water?
We tested 20 contaminants in CF61 water. None exceeded recommended safe levels.
Who supplies water in CF61?
CF61 (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 CF61?
CF61 water scored 9.5/10 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 CF61 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for CF61, 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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