Tap water in CF44, Rhondda Cynon TafSafe to drink.
Supplied by Dŵr Cymru Welsh Water. 1,310 samples, 23 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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What's in a glass of CF44 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 37% of it. 19 of 20 substances used under a quarter of theirs.
- Trihalomethanes37%
- Colour23%
- Nitrite11%
- Fluoride7%
- Turbidity7%
- Bromate6%
- Nitrate5%
- Aluminium4%
- Mercury4%
- Chromium3%
- Nickel3%
- Copper3%
- Boron3%
- Arsenic2%
- Iron2%
- Lead2%
- Manganese1%
- Antimony1%
- Selenium<1%
- Cadmium<1%
- Conductivity 92 µS/cm
- Coliform Bacteria none found
- E. coli none found
All 23 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Chromium | 0.0015 mg/L | 0.05 mg/L | 3% |
| Selenium | 0.00023 mg/L | 0.04 mg/L | <1% |
| Nickel | 0.00059 mg/L | 0.02 mg/L | 3% |
| Cadmium | 0.000025 mg/L | 0.005 mg/L | <1% |
| Antimony | 0.000058 mg/L | 0.005 mg/L | 1% |
| Lead | 0.00016 mg/L | 0.01 mg/L | 2% |
| Arsenic | 0.00022 mg/L | 0.01 mg/L | 2% |
| Copper | 0.058 mg/L | 2 mg/L | 3% |
| Manganese | 0.00072 mg/L | 0.05 mg/L | 1% |
| Nitrite | 0.056 mg/L | 0.5 mg/L | 11% |
| Aluminium | 0.0084 mg/L | 0.2 mg/L | 4% |
| Iron | 0.004 mg/L | 0.2 mg/L | 2% |
| Nitrate | 2.61 mg/L | 50 mg/L | 5% |
| Turbidity | 0.27 NTU | 4 NTU | 7% |
| Colour | 4.6 mg/L Pt/Co | 20 mg/L Pt/Co | 23% |
| Bromate | 0.00058 mg/L | 0.01 mg/L | 6% |
| Conductivity | 92 µS/cm | No legal limit | – |
| Trihalomethanes | 0.037 mg/L | 0.1 mg/L | 37% |
| Coliform Bacteria | 0 count/100ml | Must be zero | None found |
| E. coli | 0 count/100ml | Must be zero | None found |
| Boron | 0.028 mg/L | 1 mg/L | 3% |
| Fluoride | 0.11 mg/L | 1.5 mg/L | 7% |
| Mercury | 0.000042 mg/L | 0.001 mg/L | 4% |
CF44 in short
Tap water in CF44 (Rhondda Cynon Taf) is supplied by Dŵr Cymru Welsh Water in the Rhondda Cynon Taf Central zone and scores 9.5 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 20 December 2024.
- 7th cleanest of 10 areas tested in Rhondda Cynon Taf3 areas in Rhondda Cynon Taf scored lower. The best is CF43 on 9.7.
- Nothing tested came within 40% of its legal limitThe highest was Trihalomethanes at 37% of the 0.1 mg/L maximum. See every reading
- Scores higher than 2 of 9 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.
Questions about CF44 water
Is CF44 tap water safe to drink?
Based on the latest tests, CF44 (Rhondda Cynon Taf) water scores 9.5/10, which is safe. 0 of 23 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.
What contaminants are in CF44 water?
We tested 23 contaminants in CF44 water. None exceeded recommended safe levels.
Who supplies water in CF44?
CF44 (Rhondda Cynon Taf) 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 CF44?
CF44 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 CF44 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for CF44, 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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