Tap water in SA46, CeredigionSafe to drink.
Supplied by Dŵr Cymru Welsh Water. 313 samples, 23 substances, latest on 30 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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Households concerned about PFAS and heavy metals

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 SA46 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 40% of it. 19 of 20 substances used under a quarter of theirs.
- Trihalomethanes40%
- Colour23%
- Fluoride7%
- Turbidity7%
- Nitrate5%
- Mercury4%
- Iron3%
- Chromium3%
- Nickel3%
- Copper3%
- Arsenic3%
- Boron3%
- Nitrite3%
- Aluminium3%
- Lead2%
- Manganese1%
- Antimony<1%
- Selenium<1%
- Cadmium<1%
- Bromate<1%
- Coliform Bacteria none found
- E. coli none found
- Conductivity 160 µS/cm
All 23 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 | 160 µS/cm | No legal limit | – |
| Manganese | 0.00068 mg/L | 0.05 mg/L | 1% |
| Turbidity | 0.27 NTU | 4 NTU | 7% |
| Iron | 0.0068 mg/L | 0.2 mg/L | 3% |
| Colour | 4.6 mg/L Pt/Co | 20 mg/L Pt/Co | 23% |
| Aluminium | 0.005 mg/L | 0.2 mg/L | 3% |
| Trihalomethanes | 0.04 mg/L | 0.1 mg/L | 40% |
| Boron | 0.028 mg/L | 1 mg/L | 3% |
| Selenium | 0.00023 mg/L | 0.04 mg/L | <1% |
| Fluoride | 0.11 mg/L | 1.5 mg/L | 7% |
| Copper | 0.058 mg/L | 2 mg/L | 3% |
| Lead | 0.00016 mg/L | 0.01 mg/L | 2% |
| Cadmium | 0.000025 mg/L | 0.005 mg/L | <1% |
| Chromium | 0.0015 mg/L | 0.05 mg/L | 3% |
| Antimony | 0.000032 mg/L | 0.005 mg/L | <1% |
| Arsenic | 0.00028 mg/L | 0.01 mg/L | 3% |
| Mercury | 0.000042 mg/L | 0.001 mg/L | 4% |
| Nickel | 0.00059 mg/L | 0.02 mg/L | 3% |
| 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% |
SA46 in short
Tap water in SA46 (Ceredigion) is supplied by Dŵr Cymru Welsh Water in the Ceredigion 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 30 December 2024.
- Trihalomethanes is the reading closest to its limit, at 40% of the 0.1 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
- 6th cleanest of 10 areas tested in CeredigionSquarely mid-table for Ceredigion, between SA43 on 9.6 and SY24 on 9.4.
- 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 SA46 water
Is SA46 tap water safe to drink?
Based on the latest tests, SA46 (Ceredigion) 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 SA46 water?
We tested 23 contaminants in SA46 water. None exceeded recommended safe levels.
Who supplies water in SA46?
SA46 (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 SA46?
SA46 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 SA46 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for SA46, 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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