Tap water in BS29, North SomersetToo few tap tests to call it.
Supplied by Bristol Water. 15 substances, latest on 3 July 2026. These are river and groundwater samples near BS29, not tests of treated tap water, so treat the score as a rough guide.
8.3 / 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
£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 BS29 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.
Lead came closest to a limit, at 41% of it. 7 of 8 substances used under a quarter of theirs.
- Lead41%
- Iron18%
- Nickel8%
- Ammonia7%
- Nitrate5%
- Nitrite4%
- Cadmium2%
- Copper<1%
- pH 7.84 pH
- Temperature 14.5 °C
- Conductivity 678 µS/cm
- Phosphate 0.032 mg/L
- Dissolved Oxygen 13.4 mg/L
- Zinc 0.026 mg/L
All 15 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| pH | 7.84 pH | No legal limit | – |
| Temperature | 14.5 °C | No legal limit | – |
| Conductivity | 678 µS/cm | No legal limit | – |
| Nitrate | 2.7 mg/L | 50 mg/L | 5% |
| Nitrite | 0.019 mg/L | 0.5 mg/L | 4% |
| Phosphate | 0.032 mg/L | No legal limit | – |
| Dissolved Oxygen | 13.4 mg/L | No legal limit | – |
| Ammonia | 0.036 mg/L | 0.5 mg/L | 7% |
| Iron | 0.035 mg/L | 0.2 mg/L | 18% |
| Lead | 0.0041 mg/L | 0.01 mg/L | 41% |
| Hardness (as CaCO3) | 301 mg/L | No legal limit | – |
| Zinc | 0.026 mg/L | No legal limit | – |
| Nickel | 0.0015 mg/L | 0.02 mg/L | 8% |
| Copper | 0.0011 mg/L | 2 mg/L | <1% |
| Cadmium | 0.00012 mg/L | 0.005 mg/L | 2% |
Your river is the Banwell - source to conf R Banwell Estuary, rated moderate
The Environment Agency rated the Banwell - source to conf R Banwell Estuary as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by fish, dissolved oxygen and phosphate. 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.
None of this is a test of your tap water. Environment Agency record · River health across England
BS29 in short
Tap water in BS29 (North Somerset) is supplied by Bristol Water in the North Somerset Central zone and scores 8.3 out of 10, against an England and Wales average of 9.0. None of the 15 tested substances came close to a limit. The latest sample is from 3 July 2026.
- 9th cleanest of 10 areas tested in Bristol1 area in Bristol scored lower. The best is BS40 on 9.6. Every area in Bristol
- Lead is the reading closest to its limit, at 41% of the 0.01 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
- 0.7 points below the national average of 9Below the typical tested district in the UK, which is worth knowing before you choose a filter. Compare every area
Questions about BS29 water
Is BS29 tap water safe to drink?
Based on the latest tests, BS29 (North Somerset) water scores 8.3/10, which is safe. 0 of 15 tested contaminants exceeded recommended levels. Water is supplied by Bristol Water.
What contaminants are in BS29 water?
We tested 15 contaminants in BS29 water. None exceeded recommended safe levels.
Who supplies water in BS29?
BS29 (North Somerset) is supplied by Bristol Water. You can view their full profile and compliance data on our supplier page.
Should I use a water filter in BS29?
BS29 water scored 8.3/10 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 BS29 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for BS29, 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 BS29?
The Environment Agency rated the Banwell - source to conf R Banwell Estuary as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by fish, dissolved oxygen and phosphate. 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. This is a rating of the river, not of tap water in BS29, which is treated before it reaches homes.
Keep reading
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- How to Test Your Tap WaterFrom DIY strips to professional lab analysis
- Best Water Filter Jug UKBRITA vs ZeroWater vs the rest, tested against real data
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