Tap water in B49, Stratford-on-AvonSafe to drink.
Supplied by Severn Trent. 704 samples, 20 substances, latest on 29 December 2025. 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
ZeroWater 12-Cup Ready-Pour
£40typical price
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 B49 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.
Nitrate came closest to a limit, at 36% of it. 16 of 17 substances used under a quarter of theirs.
- Nitrate36%
- Trihalomethanes24%
- Fluoride15%
- Manganese11%
- Aluminium11%
- Nickel7%
- Iron4%
- Copper4%
- Colour4%
- Turbidity3%
- Antimony3%
- Arsenic2%
- Lead1%
- Chromium<1%
- Nitrite<1%
- Selenium<1%
- Cadmium<1%
- pH 7.66 pH
- Conductivity 690 µS/cm
- Phosphate 0.846 mg/L
All 20 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Aluminium | 0.021 mg/L | 0.2 mg/L | 11% |
| Iron | 0.0089 mg/L | 0.2 mg/L | 4% |
| Manganese | 0.00572 mg/L | 0.05 mg/L | 11% |
| pH | 7.66 pH | No legal limit | – |
| Nitrate | 17.8 mg/L | 50 mg/L | 36% |
| Nitrite | 0.003 mg/L | 0.5 mg/L | <1% |
| Copper | 0.0839 mg/L | 2 mg/L | 4% |
| Fluoride | 0.22 mg/L | 1.5 mg/L | 15% |
| Arsenic | 0.00017 mg/L | 0.01 mg/L | 2% |
| Cadmium | 0.00001 mg/L | 0.005 mg/L | <1% |
| Chromium | 0.00042 mg/L | 0.05 mg/L | <1% |
| Nickel | 0.0013 mg/L | 0.02 mg/L | 7% |
| Lead | 0.00014 mg/L | 0.01 mg/L | 1% |
| Colour | 0.8 mg/L Pt/Co | 20 mg/L Pt/Co | 4% |
| Antimony | 0.000142 mg/L | 0.005 mg/L | 3% |
| Selenium | 0.0001 mg/L | 0.04 mg/L | <1% |
| Turbidity | 0.12 NTU | 4 NTU | 3% |
| Conductivity | 690 µS/cm | No legal limit | – |
| Trihalomethanes | 0.0238 mg/L | 0.1 mg/L | 24% |
| Phosphate | 0.846 mg/L | No legal limit | – |
Your river is the Arrow - Spernall Hall Fm, Studley to conf R Alne, rated moderate
The Environment Agency rated the Arrow - Spernall Hall Fm, Studley to conf R Alne as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by phosphate and water plants and algae. 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
B49 in short
Tap water in B49 (Stratford-on-Avon) is supplied by Severn Trent in the Stratford-on-Avon 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 29 December 2025.
- The cleanest tap water of the 8 areas tested in Stratford-on-AvonB49 scores 9.3 out of 10, ahead of B95 in second place on 9.3.
- Nothing tested came within 40% of its legal limitThe highest was Nitrate at 36% of the 50 mg/L maximum. See every reading
- Scores higher than 5 of 7 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.
Questions about B49 water
Is B49 tap water safe to drink?
Based on the latest tests, B49 (Stratford-on-Avon) water scores 9.3/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.
What contaminants are in B49 water?
We tested 20 contaminants in B49 water. None exceeded recommended safe levels.
Who supplies water in B49?
B49 (Stratford-on-Avon) is supplied by Severn Trent. You can view their full profile and compliance data on our supplier page.
Should I use a water filter in B49?
B49 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 B49 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for B49, 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 B49?
The Environment Agency rated the Arrow - Spernall Hall Fm, Studley to conf R Alne as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by phosphate and water plants and algae. 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 B49, which is treated before it reaches homes.
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River and groundwater readings near B49
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.
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We'll email you when water quality data changes for B49.