Tap water in SA45, CeredigionSafe to drink.
Supplied by Dŵr Cymru Welsh Water. 158 samples, 20 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

ZeroWater 12-Cup Ready-Pour
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Households concerned about PFAS and heavy metals

Waterdrop 10UA Under Sink
£70typical price
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 SA45 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%
- Nitrate14%
- Turbidity7%
- Iron3%
- Chromium3%
- Nickel3%
- Copper3%
- Nitrite3%
- Aluminium3%
- Lead2%
- Manganese1%
- Arsenic1%
- Selenium<1%
- Antimony<1%
- Cadmium<1%
- Bromate<1%
- Coliform Bacteria none found
- E. coli none found
- Conductivity 160 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 | 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% |
| Bromate | 3.1e-7 mg/L | 0.01 mg/L | <1% |
| Trihalomethanes | 0.035 mg/L | 0.1 mg/L | 35% |
| Antimony | 0.000028 mg/L | 0.005 mg/L | <1% |
| Copper | 0.058 mg/L | 2 mg/L | 3% |
| Cadmium | 0.000025 mg/L | 0.005 mg/L | <1% |
| Arsenic | 0.00011 mg/L | 0.01 mg/L | 1% |
| Nitrite | 0.013 mg/L | 0.5 mg/L | 3% |
| Nickel | 0.00059 mg/L | 0.02 mg/L | 3% |
| Nitrate | 6.77 mg/L | 50 mg/L | 14% |
| Selenium | 0.00023 mg/L | 0.04 mg/L | <1% |
| Chromium | 0.0015 mg/L | 0.05 mg/L | 3% |
| Lead | 0.00016 mg/L | 0.01 mg/L | 2% |
SA45 in short
Tap water in SA45 (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 20 tested substances came close to a limit. The latest sample is from 30 December 2024.
- 5th cleanest of 10 areas tested in CeredigionSquarely mid-table for Ceredigion, between SA43 on 9.6 and SY24 on 9.4.
- 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 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 SA45 water
Is SA45 tap water safe to drink?
Based on the latest tests, SA45 (Ceredigion) 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 SA45 water?
We tested 20 contaminants in SA45 water. None exceeded recommended safe levels.
Who supplies water in SA45?
SA45 (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 SA45?
SA45 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 SA45 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for SA45, 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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