Tap water in SA33, CarmarthenshireSafe to drink.
Supplied by Dŵr Cymru Welsh Water. 659 samples, 20 substances, latest on 18 December 2024. Everything is inside the legal limit, and nothing comes close to it.
9.3 / 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 SA33 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.
Nitrite came closest to a limit, at 44% of it. 15 of 17 substances used under a quarter of theirs.
- Nitrite44%
- Trihalomethanes34%
- Colour23%
- Nitrate22%
- Turbidity7%
- Chromium3%
- Iron3%
- Nickel3%
- Copper3%
- Aluminium3%
- Lead2%
- Manganese1%
- Arsenic1%
- Antimony<1%
- Selenium<1%
- Cadmium<1%
- Bromate<1%
- E. coli none found
- Coliform Bacteria none found
- Conductivity 160 µS/cm
All 20 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| E. coli | 0 count/100ml | Must be zero | None found |
| Coliform Bacteria | 0 count/100ml | Must be zero | None found |
| Bromate | 3.1e-7 mg/L | 0.01 mg/L | <1% |
| Trihalomethanes | 0.034 mg/L | 0.1 mg/L | 34% |
| Conductivity | 160 µS/cm | No legal limit | – |
| Selenium | 0.00023 mg/L | 0.04 mg/L | <1% |
| Lead | 0.00016 mg/L | 0.01 mg/L | 2% |
| Chromium | 0.0015 mg/L | 0.05 mg/L | 3% |
| Copper | 0.058 mg/L | 2 mg/L | 3% |
| Antimony | 0.000037 mg/L | 0.005 mg/L | <1% |
| Nickel | 0.00059 mg/L | 0.02 mg/L | 3% |
| Cadmium | 0.000025 mg/L | 0.005 mg/L | <1% |
| Arsenic | 0.00011 mg/L | 0.01 mg/L | 1% |
| Aluminium | 0.005 mg/L | 0.2 mg/L | 3% |
| Nitrite | 0.22 mg/L | 0.5 mg/L | 44% |
| Nitrate | 10.9 mg/L | 50 mg/L | 22% |
| Manganese | 0.00068 mg/L | 0.05 mg/L | 1% |
| Iron | 0.006 mg/L | 0.2 mg/L | 3% |
| Turbidity | 0.27 NTU | 4 NTU | 7% |
| Colour | 4.6 mg/L Pt/Co | 20 mg/L Pt/Co | 23% |
SA33 in short
Tap water in SA33 (Carmarthenshire) is supplied by Dŵr Cymru Welsh Water in the Carmarthenshire Central zone and scores 9.3 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 18 December 2024.
- 12th cleanest of 13 areas tested in Carmarthenshire1 area in Carmarthenshire scored lower. The best is SA14 on 9.6.
- Nitrite is the reading closest to its limit, at 44% of the 0.5 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
- Scores higher than 0 of 10 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.
Questions about SA33 water
Is SA33 tap water safe to drink?
Based on the latest tests, SA33 (Carmarthenshire) water scores 9.3/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.
What contaminants are in SA33 water?
We tested 20 contaminants in SA33 water. None exceeded recommended safe levels.
Who supplies water in SA33?
SA33 (Carmarthenshire) 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 SA33?
SA33 water scored 9.3/10 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 SA33 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for SA33, 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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