Tap water in SA48, CeredigionSafe to drink.
Supplied by Dŵr Cymru Welsh Water. 767 samples, 23 substances, latest on 30 December 2024. Everything is inside the legal limit, and nothing comes close to it.
9.6 / 10
The tank is as full as the score.
What to do about it

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Waterdrop 10UA Under Sink
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High-volume under-sink filtration without RO complexity

BRITA Marella XL + MAXTRA PRO
£25typical price
Basic chlorine and taste improvement on a budget
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What's in a glass of SA48 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 33% of it. 19 of 20 substances used under a quarter of theirs.
- Trihalomethanes33%
- Colour23%
- Fluoride7%
- Turbidity7%
- Nitrate5%
- Mercury4%
- Iron3%
- Chromium3%
- Nickel3%
- Copper3%
- Boron3%
- Nitrite3%
- Arsenic3%
- Aluminium3%
- Lead2%
- Manganese1%
- Antimony<1%
- Selenium<1%
- Cadmium<1%
- Bromate<1%
- Conductivity 160 µS/cm
- Coliform Bacteria none found
- E. coli none found
All 23 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Conductivity | 160 µS/cm | No legal limit | – |
| Coliform Bacteria | 0 count/100ml | Must be zero | None found |
| E. coli | 0 count/100ml | Must be zero | None found |
| Manganese | 0.00068 mg/L | 0.05 mg/L | 1% |
| Iron | 0.0068 mg/L | 0.2 mg/L | 3% |
| Turbidity | 0.27 NTU | 4 NTU | 7% |
| Aluminium | 0.005 mg/L | 0.2 mg/L | 3% |
| Colour | 4.6 mg/L Pt/Co | 20 mg/L Pt/Co | 23% |
| Trihalomethanes | 0.033 mg/L | 0.1 mg/L | 33% |
| Boron | 0.028 mg/L | 1 mg/L | 3% |
| Nickel | 0.00059 mg/L | 0.02 mg/L | 3% |
| Selenium | 0.00023 mg/L | 0.04 mg/L | <1% |
| Antimony | 0.000031 mg/L | 0.005 mg/L | <1% |
| Lead | 0.00016 mg/L | 0.01 mg/L | 2% |
| Copper | 0.058 mg/L | 2 mg/L | 3% |
| Arsenic | 0.00025 mg/L | 0.01 mg/L | 3% |
| Chromium | 0.0015 mg/L | 0.05 mg/L | 3% |
| Fluoride | 0.11 mg/L | 1.5 mg/L | 7% |
| Mercury | 0.000042 mg/L | 0.001 mg/L | 4% |
| Cadmium | 0.000025 mg/L | 0.005 mg/L | <1% |
| Nitrite | 0.013 mg/L | 0.5 mg/L | 3% |
| Nitrate | 2.61 mg/L | 50 mg/L | 5% |
| Bromate | 3.1e-7 mg/L | 0.01 mg/L | <1% |
SA48 in short
Tap water in SA48 (Ceredigion) is supplied by Dŵr Cymru Welsh Water in the Ceredigion Central zone and scores 9.6 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 30 December 2024.
- 2nd cleanest of 10 areas tested in CeredigionOnly 1 area in Ceredigion scored higher. The best is SA43 on 9.6.
- 0.6 points above the national average of 9Cleaner than the typical tested district in the UK. Compare every area
- Nothing tested came within 40% of its legal limitThe highest was Trihalomethanes at 33% of the 0.1 mg/L maximum. See every reading
Questions about SA48 water
Is SA48 tap water safe to drink?
Based on the latest tests, SA48 (Ceredigion) water scores 9.6/10, which is safe. 0 of 23 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.
What contaminants are in SA48 water?
We tested 23 contaminants in SA48 water. None exceeded recommended safe levels.
Who supplies water in SA48?
SA48 (Ceredigion) 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 SA48?
SA48 water scored 9.6/10 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 SA48 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for SA48, 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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