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England and Wales average 9.0

Tap water in B91, SolihullSafe to drink.

Supplied by Severn Trent. 1,079 samples, 20 substances, latest on 23 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.1 / 10

The tank is as full as the score.

What to do about it

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Basic chlorine and taste improvement on a budget

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What's in a glass of B91 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 52% of it. 15 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitSelenium: 0.00007 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Copper: 0.0041 mg/L, <1% of the 2 mg/L limitCopper<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%Antimony: 0.000059 mg/L, 1% of the 0.005 mg/L limitAntimony1%Arsenic: 0.00014 mg/L, 1% of the 0.01 mg/L limitArsenic1%Manganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Iron: 0.007 mg/L, 3% of the 0.2 mg/L limitIron3%Lead: 0.00037 mg/L, 4% of the 0.01 mg/L limitLead4%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Nickel: 0.0011 mg/L, 6% of the 0.02 mg/L limitNickel6%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Nitrate: 5.8 mg/L, 12% of the 50 mg/L limitNitrate12%Trihalomethanes: 0.0456 mg/L, 46% of the 0.1 mg/L limitTrihalomethanes46%Fluoride: 0.78 mg/L, 52% of the 1.5 mg/L limitFluoride52%
  1. Fluoride52%
  2. Trihalomethanes46%
  3. Nitrate12%
  4. Aluminium11%
  5. Nickel6%
  6. Colour4%
  7. Lead4%
  8. Iron3%
  9. Turbidity3%
  10. Manganese1%
  11. Arsenic1%
  12. Antimony1%
  13. Chromium<1%
  14. Nitrite<1%
  15. Cadmium<1%
  16. Copper<1%
  17. Selenium<1%
  • pH 7.66 pH
  • Conductivity 130 µS/cm
  • Phosphate 0.584 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
pH7.66 pHNo legal limit–
Conductivity130 µS/cmNo legal limit–
Trihalomethanes0.0456 mg/L0.1 mg/L
46%
Nitrate5.8 mg/L50 mg/L
12%
Nitrite0.003 mg/L0.5 mg/L
<1%
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Turbidity0.12 NTU4 NTU
3%
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.007 mg/L0.2 mg/L
3%
Manganese0.00073 mg/L0.05 mg/L
1%
Copper0.0041 mg/L2 mg/L
<1%
Fluoride0.78 mg/L1.5 mg/L
52%
Arsenic0.00014 mg/L0.01 mg/L
1%
Cadmium0.00002 mg/L0.005 mg/L
<1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.0011 mg/L0.02 mg/L
6%
Lead0.00037 mg/L0.01 mg/L
4%
Antimony0.000059 mg/L0.005 mg/L
1%
Selenium0.00007 mg/L0.04 mg/L
<1%
Phosphate0.584 mg/LNo legal limit–
Outside your tap

Your river is the Blythe from Source to Cuttle Brook, rated poor

The Environment Agency rated the Blythe from Source to Cuttle Brook as poor for ecological health in its 2025 assessment, meaning the river is badly affected, with much of the expected wildlife missing. It is held back by water plants and algae 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

Within 10 km

116

forever-chemical detections in nearby rivers and groundwater

At 5 sites. The highest was PFOS (linear) at 0.0093 µg/L, at RSN1442 Hatchford-Kingshurst Brook at Holly Lane, 6.6 km away, in September 2025. These are river and borehole samples, not tests of your tap water.

Every PFAS sample around Birmingham · Which filters remove PFAS · PFAS explained

B91 in short

Tap water in B91 (Solihull) is supplied by Severn Trent in the Solihull Central zone and scores 9.1 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 23 December 2025.

  • Fluoride is the reading closest to its limit, at 52% of the 1.5 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 5th cleanest of 7 areas tested in Solihull2 areas in Solihull scored lower. The best is B37 on 9.3.
  • PFAS found at 5 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFOS (linear) about 6.6 km away. What was measured

Next door

B939.0 out of 10B929.3 out of 10B368.8 out of 10B379.3 out of 10B909.3 out of 10B409.2 out of 10B279.3 out of 10B269.3 out of 10

Questions about B91 water

Is B91 tap water safe to drink?

Based on the latest tests, B91 (Solihull) water scores 9.1/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in B91 water?

We tested 20 contaminants in B91 water. None exceeded recommended safe levels. PFAS (forever chemicals) were also measured in rivers and groundwater within 10 km, though not in the tap-water tests themselves.

Who supplies water in B91?

B91 (Solihull) 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 B91?

B91 water scored 9.1/10 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 B91 water?

The tap-water tests we hold for B91 do not include a PFAS result. Environment Agency monitoring found PFAS in 116 river and groundwater samples from 5 sites within 10 km of B91, the highest being PFOS (linear) at 0.0093 µg/L about 6.6 km away. These are environmental samples, not tests of tap water. The UK currently has no legal limit for PFAS in drinking water; the Drinking Water Inspectorate uses a 0.1 µg/L guideline for individual compounds. Reverse osmosis filters can reduce PFAS levels.

How clean is the river near B91?

The Environment Agency rated the Blythe from Source to Cuttle Brook as poor for ecological health in its 2025 assessment, meaning the river is badly affected, with much of the expected wildlife missing. It is held back by water plants and algae 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 B91, which is treated before it reaches homes.

Keep reading

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

River and groundwater readings near B91

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
pH7.3 pHNone
Temperature17.3 °CNone
Conductivity366 µS/cmNone
Ammonia0.14 mg/L0.5 mg/L
Nitrate2.5 mg/L50 mg/L
Nitrite0.084 mg/L0.5 mg/L
Phosphate0.19 mg/LNone
Dissolved Oxygen6.75 mg/LNone
Hardness (as CaCO3)248 mg/LNone
Copper0.00275 mg/L2 mg/L
Zinc0.0114 mg/LNone

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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