Tap water in LD7, PowysSafe to drink.
Supplied by Dŵr Cymru Welsh Water. 416 samples, 22 substances, latest on 9 December 2024. Everything is inside the legal limit, and nothing comes close to it.
9.4 / 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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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 LD7 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 43% of it. 17 of 19 substances used under a quarter of theirs.
- Trihalomethanes43%
- Copper25%
- Colour23%
- Lead9%
- Fluoride7%
- Turbidity7%
- Nitrate5%
- Mercury4%
- Nickel3%
- Boron3%
- Nitrite3%
- Aluminium3%
- Iron2%
- Manganese2%
- Arsenic1%
- Selenium<1%
- Antimony<1%
- Cadmium<1%
- Chromium<1%
- Coliform Bacteria none found
- E. coli none found
- Conductivity 120 µS/cm
All 22 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Aluminium | 0.005 mg/L | 0.2 mg/L | 3% |
| Coliform Bacteria | 0 count/100ml | Must be zero | None found |
| Manganese | 0.00086 mg/L | 0.05 mg/L | 2% |
| Iron | 0.004 mg/L | 0.2 mg/L | 2% |
| E. coli | 0 count/100ml | Must be zero | None found |
| Conductivity | 120 µS/cm | No legal limit | – |
| Colour | 4.6 mg/L Pt/Co | 20 mg/L Pt/Co | 23% |
| Turbidity | 0.27 NTU | 4 NTU | 7% |
| Trihalomethanes | 0.043 mg/L | 0.1 mg/L | 43% |
| Boron | 0.028 mg/L | 1 mg/L | 3% |
| Antimony | 0.000028 mg/L | 0.005 mg/L | <1% |
| Selenium | 0.00023 mg/L | 0.04 mg/L | <1% |
| Arsenic | 0.00013 mg/L | 0.01 mg/L | 1% |
| Cadmium | 0.000025 mg/L | 0.005 mg/L | <1% |
| Chromium | 0.000092 mg/L | 0.05 mg/L | <1% |
| Lead | 0.00093 mg/L | 0.01 mg/L | 9% |
| Nickel | 0.00059 mg/L | 0.02 mg/L | 3% |
| Mercury | 0.000042 mg/L | 0.001 mg/L | 4% |
| Fluoride | 0.11 mg/L | 1.5 mg/L | 7% |
| Copper | 0.5 mg/L | 2 mg/L | 25% |
| Nitrite | 0.013 mg/L | 0.5 mg/L | 3% |
| Nitrate | 2.61 mg/L | 50 mg/L | 5% |
Your river is the Teme - source to conf Ffwdwen Bk to conf R Clun, rated good
The Environment Agency rated the Teme - source to conf Ffwdwen Bk to conf R Clun as good for ecological health in its 2025 assessment, meaning the river is only slightly changed from its natural state. It fails the chemical test, as every river, estuary and stretch of coast in England does, because of long-lasting pollutants such as mercury, PFOS (a forever chemical) and old flame retardants. Its ecological rating has improved since the previous assessment.
None of this is a test of your tap water. Environment Agency record · River health across England
LD7 in short
Tap water in LD7 (Powys) is supplied by Dŵr Cymru Welsh Water in the Powys Central zone and scores 9.4 out of 10, against an England and Wales average of 9.0. None of the 22 tested substances came close to a limit. The latest sample is from 9 December 2024.
- Trihalomethanes is the reading closest to its limit, at 43% of the 0.1 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
- 12th cleanest of 17 areas tested in Powys5 areas in Powys scored lower. The best is LD3 on 9.7.
- Scores higher than 3 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 LD7 water
Is LD7 tap water safe to drink?
Based on the latest tests, LD7 (Powys) water scores 9.4/10, which is safe. 0 of 22 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.
What contaminants are in LD7 water?
We tested 22 contaminants in LD7 water. None exceeded recommended safe levels.
Who supplies water in LD7?
LD7 (Powys) 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 LD7?
LD7 water scored 9.4/10 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 LD7 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for LD7, 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.
How clean is the river near LD7?
The Environment Agency rated the Teme - source to conf Ffwdwen Bk to conf R Clun as good for ecological health in its 2025 assessment, meaning the river is only slightly changed from its natural state. It fails the chemical test, as every river, estuary and stretch of coast in England does, because of long-lasting pollutants such as mercury, PFOS (a forever chemical) and old flame retardants. Its ecological rating has improved since the previous assessment. This is a rating of the river, not of tap water in LD7, which is treated before it reaches homes.
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River and groundwater readings near LD7
Environment Agency samples from rivers, groundwater and reservoirs nearby. Not your tap water. For scale they are shown against drinking water limits; rivers are judged against much stricter environmental standards, and on those every river in England fails for chemicals.
| Substance | Reading | Drinking water limit |
|---|---|---|
| pH | 7.92 pH | None |
| Temperature | 13.8 °C | None |
| Conductivity | 324 µS/cm | None |
| Nitrate | 2.3 mg/L | 50 mg/L |
| Nitrite | 0.0055 mg/L | 0.5 mg/L |
| Dissolved Oxygen | 11.8 mg/L | None |
| Phosphate | 0.024 mg/L | None |
| Ammonia | 0.0066 mg/L | 0.5 mg/L |
| Copper | 0.00006 mg/L | 2 mg/L |
| Zinc | 0.00091 mg/L | None |
| Aluminium | 0.064 mg/L | 0.2 mg/L |
| Iron | 0.12 mg/L | 0.2 mg/L |
Get alerts for your area
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