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England and Wales average 9.0

Tap water in B40, SolihullSafe to drink.

Supplied by Severn Trent. 124 samples, 20 substances, latest on 29 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.2 / 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 B40 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 54% 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%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%Copper: 0.0164 mg/L, <1% of the 2 mg/L limitCopper<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%Lead: 0.00014 mg/L, 1% of the 0.01 mg/L limitLead1%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%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: 0.0367 mg/L, 37% of the 0.1 mg/L limitTrihalomethanes37%Fluoride: 0.81 mg/L, 54% of the 1.5 mg/L limitFluoride54%
  1. Fluoride54%
  2. Trihalomethanes37%
  3. Nitrate12%
  4. Aluminium11%
  5. Nickel6%
  6. Colour4%
  7. Iron3%
  8. Turbidity3%
  9. Manganese1%
  10. Arsenic1%
  11. Lead1%
  12. Antimony1%
  13. Chromium<1%
  14. Copper<1%
  15. Nitrite<1%
  16. Cadmium<1%
  17. Selenium<1%
  • pH 7.98 pH
  • Conductivity 155 µS/cm
  • Phosphate 0.567 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Manganese0.00073 mg/L0.05 mg/L
1%
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.007 mg/L0.2 mg/L
3%
pH7.98 pHNo legal limit–
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Turbidity0.12 NTU4 NTU
3%
Conductivity155 µS/cmNo legal limit–
Copper0.0164 mg/L2 mg/L
<1%
Fluoride0.81 mg/L1.5 mg/L
54%
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%
Lead0.00014 mg/L0.01 mg/L
1%
Antimony0.000059 mg/L0.005 mg/L
1%
Selenium0.00007 mg/L0.04 mg/L
<1%
Nitrate5.8 mg/L50 mg/L
12%
Nitrite0.003 mg/L0.5 mg/L
<1%
Trihalomethanes0.0367 mg/L0.1 mg/L
37%
Phosphate0.567 mg/LNo legal limit–
Outside your tap

Your river is the Blythe from Patrick Bridge to R Tame, rated poor

The Environment Agency rated the Blythe from Patrick Bridge to R Tame 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

230

forever-chemical detections in nearby rivers and groundwater

At 13 sites. The highest was 6:2 FTSA at 0.043 µg/L, at Brailes Farm Borehole, Fillongley Road, Meriden, 6.1 km away, in March 2024. These are river and borehole samples, not tests of your tap water.

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

B40 in short

Tap water in B40 (Solihull) is supplied by Severn Trent in the Solihull Central zone and scores 9.2 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.

  • Fluoride is the reading closest to its limit, at 54% of the 1.5 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 4th cleanest of 7 areas tested in SolihullSquarely mid-table for Solihull, between B37 on 9.3 and B36 on 8.8.
  • PFAS found at 13 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was 6:2 FTSA about 6.1 km away. What was measured

Next door

B368.8 out of 10B939.0 out of 10B919.1 out of 10B379.3 out of 10B909.3 out of 10B929.3 out of 10

Questions about B40 water

Is B40 tap water safe to drink?

Based on the latest tests, B40 (Solihull) water scores 9.2/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in B40 water?

We tested 20 contaminants in B40 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 B40?

B40 (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 B40?

B40 water scored 9.2/10 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 B40 water?

The tap-water tests we hold for B40 do not include a PFAS result. Environment Agency monitoring found PFAS in 230 river and groundwater samples from 13 sites within 10 km of B40, the highest being 6:2 FTSA at 0.043 µg/L about 6.1 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 B40?

The Environment Agency rated the Blythe from Patrick Bridge to R Tame 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 B40, 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 B40

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
Turbidity4.9 NTU4 NTU
pH7.91 pHNone
Temperature16.5 °CNone
Conductivity618 µS/cmNone
Nitrate0.77 mg/L50 mg/L
Nitrite0.021 mg/L0.5 mg/L
Phosphate0.34 mg/LNone
Dissolved Oxygen7.35 mg/LNone
Ammonia0.031 mg/L0.5 mg/L
Lead0.00139 mg/L0.01 mg/L
Zinc0.00543 mg/LNone
Copper0.00453 mg/L2 mg/L

Get alerts for your area

We'll email you when water quality data changes for B40.

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