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tapwater
England and Wales average 9.0

Tap water in B50, Stratford-on-AvonSafe to drink.

Supplied by Severn Trent. 351 samples, 20 substances, latest on 19 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

8.9 / 10

The tank is as full as the score.

What to do about it

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What's in a glass of B50 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.

Fluoride came closest to a limit, at 65% of it. 14 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCopper: 0.0028 mg/L, <1% of the 2 mg/L limitCopper<1%Selenium: 0.00011 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Cadmium: 0.00002 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Nitrite: 0.003 mg/L, <1% of the 0.5 mg/L limitNitrite<1%Chromium: 0.00042 mg/L, <1% of the 0.05 mg/L limitChromium<1%Lead: 0.00025 mg/L, 3% of the 0.01 mg/L limitLead3%Arsenic: 0.00028 mg/L, 3% of the 0.01 mg/L limitArsenic3%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Antimony: 0.000182 mg/L, 4% of the 0.005 mg/L limitAntimony4%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Iron: 0.0089 mg/L, 4% of the 0.2 mg/L limitIron4%Nickel: 0.001 mg/L, 5% of the 0.02 mg/L limitNickel5%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Manganese: 0.00572 mg/L, 11% of the 0.05 mg/L limitManganese11%Nitrate: 17.7 mg/L, 35% of the 50 mg/L limitNitrate35%Trihalomethanes: 0.0381 mg/L, 38% of the 0.1 mg/L limitTrihalomethanes38%Fluoride: 0.97 mg/L, 65% of the 1.5 mg/L limitFluoride65%
  1. Fluoride65%
  2. Trihalomethanes38%
  3. Nitrate35%
  4. Manganese11%
  5. Aluminium11%
  6. Nickel5%
  7. Iron4%
  8. Colour4%
  9. Antimony4%
  10. Turbidity3%
  11. Arsenic3%
  12. Lead3%
  13. Chromium<1%
  14. Nitrite<1%
  15. Cadmium<1%
  16. Selenium<1%
  17. Copper<1%
  • pH 7.66 pH
  • Conductivity 690 µS/cm
  • Phosphate 0.846 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.0089 mg/L0.2 mg/L
4%
Manganese0.00572 mg/L0.05 mg/L
11%
pH7.66 pHNo legal limit–
Nitrate17.7 mg/L50 mg/L
35%
Nitrite0.003 mg/L0.5 mg/L
<1%
Copper0.0028 mg/L2 mg/L
<1%
Fluoride0.97 mg/L1.5 mg/L
65%
Arsenic0.00028 mg/L0.01 mg/L
3%
Cadmium0.00002 mg/L0.005 mg/L
<1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.001 mg/L0.02 mg/L
5%
Lead0.00025 mg/L0.01 mg/L
3%
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Antimony0.000182 mg/L0.005 mg/L
4%
Selenium0.00011 mg/L0.04 mg/L
<1%
Turbidity0.12 NTU4 NTU
3%
Conductivity690 µS/cmNo legal limit–
Trihalomethanes0.0381 mg/L0.1 mg/L
38%
Phosphate0.846 mg/LNo legal limit–
Outside your tap

Your river is the Avon- Tramway Br Stratford to Workman Br Evesham, rated moderate

The Environment Agency rated the Avon- Tramway Br Stratford to Workman Br Evesham 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. 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

B50 in short

Tap water in B50 (Stratford-on-Avon) is supplied by Severn Trent in the Stratford-on-Avon Central zone and scores 8.9 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 19 December 2025.

  • Fluoride is the reading closest to its limit, at 65% of the 1.5 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 6th cleanest of 8 areas tested in Stratford-on-Avon2 areas in Stratford-on-Avon scored lower. The best is B49 on 9.3.
  • Scores higher than 0 of 7 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.

Next door

B949.2 out of 10B959.3 out of 10B808.9 out of 10B499.3 out of 10CV369.0 out of 10CV478.9 out of 10CV379.3 out of 10

Questions about B50 water

Is B50 tap water safe to drink?

Based on the latest tests, B50 (Stratford-on-Avon) water scores 8.9/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in B50 water?

We tested 20 contaminants in B50 water. None exceeded recommended safe levels.

Who supplies water in B50?

B50 (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 B50?

B50 water scored 8.9/10 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 B50 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for B50, 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 B50?

The Environment Agency rated the Avon- Tramway Br Stratford to Workman Br Evesham 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. 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 B50, which is treated before it reaches homes.

Keep reading

How to test your waterBest water filtersFilter shower headsWater testing kitsUK water rankingsWater hardness checkerWater hardness map

River and groundwater readings near B50

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.

SubstanceReadingDrinking water limit
pH7.76 pHNone
Temperature15.1 °CNone
Conductivity1222 µS/cmNone
Nitrate9.7 mg/L50 mg/L
Nitrite0.034 mg/L0.5 mg/L
Phosphate0.22 mg/LNone
Dissolved Oxygen9.01 mg/LNone
Ammonia0.038 mg/L0.5 mg/L
Iron0.05 mg/L0.2 mg/L

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We'll email you when water quality data changes for B50.

Source: Severn Trent test results, published through the Stream Water Data Portal; rivers and PFAS from the Environment Agency. Page updated . How we score · Where the data comes from