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tapwater
England and Wales average 9.0

Tap water in B25, BirminghamSafe to drink.

Supplied by Severn Trent. 587 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

9.3 / 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

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High-volume under-sink filtration without RO complexity

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Basic chlorine and taste improvement on a budget

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What's in a glass of B25 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 48% of it. 15 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCopper: 0.0016 mg/L, <1% of the 2 mg/L limitCopper<1%Selenium: 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%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: 0.00084 mg/L, 2% of the 0.05 mg/L limitManganese2%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Nickel: 0.001 mg/L, 5% of the 0.02 mg/L limitNickel5%Iron: 0.0102 mg/L, 5% of the 0.2 mg/L limitIron5%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Nitrate: 6.8 mg/L, 14% of the 50 mg/L limitNitrate14%Trihalomethanes: 0.0288 mg/L, 29% of the 0.1 mg/L limitTrihalomethanes29%Fluoride: 0.72 mg/L, 48% of the 1.5 mg/L limitFluoride48%
  1. Fluoride48%
  2. Trihalomethanes29%
  3. Nitrate14%
  4. Aluminium11%
  5. Iron5%
  6. Nickel5%
  7. Colour4%
  8. Turbidity3%
  9. Manganese2%
  10. Arsenic1%
  11. Lead1%
  12. Antimony1%
  13. Chromium<1%
  14. Nitrite<1%
  15. Cadmium<1%
  16. Selenium<1%
  17. Copper<1%
  • pH 8.06 pH
  • Conductivity 123 µS/cm
  • Phosphate 0.52 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Manganese0.00084 mg/L0.05 mg/L
2%
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Copper0.0016 mg/L2 mg/L
<1%
Fluoride0.72 mg/L1.5 mg/L
48%
Arsenic0.00014 mg/L0.01 mg/L
1%
Cadmium0.00002 mg/L0.005 mg/L
<1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.001 mg/L0.02 mg/L
5%
Lead0.00014 mg/L0.01 mg/L
1%
Antimony0.000059 mg/L0.005 mg/L
1%
Selenium0.00007 mg/L0.04 mg/L
<1%
Turbidity0.12 NTU4 NTU
3%
pH8.06 pHNo legal limit–
Nitrate6.8 mg/L50 mg/L
14%
Nitrite0.003 mg/L0.5 mg/L
<1%
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.0102 mg/L0.2 mg/L
5%
Conductivity123 µS/cmNo legal limit–
Trihalomethanes0.0288 mg/L0.1 mg/L
29%
Phosphate0.52 mg/LNo legal limit–
Outside your tap

Your river is the Cole from Springfield to Hatchford-Kingshurst Brook, rated poor

The Environment Agency rated the Cole from Springfield to Hatchford-Kingshurst 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 insects and other small river life, phosphate and dissolved oxygen. 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

157

forever-chemical detections in nearby rivers and groundwater

At 8 sites. The highest was PFOS at 0.016 µg/L, at RSN0918 River Blythe at Castle Farm, 9.8 km away, in August 2023. These are river and borehole samples, not tests of your tap water.

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

B25 in short

Tap water in B25 (Birmingham) is supplied by Severn Trent in the Birmingham 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.

  • Fluoride is the reading closest to its limit, at 48% of the 1.5 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 10th cleanest of 42 areas tested in BirminghamOnly 9 areas in Birmingham scored higher. The best is B2 on 9.6. Every area in Birmingham
  • PFAS found at 8 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFOS about 9.8 km away. What was measured

Next door

B39.3 out of 10B48.9 out of 10B58.9 out of 10B99.1 out of 10B109.3 out of 10B89.3 out of 10B119.3 out of 10B139.1 out of 10B159.2 out of 10B29.6 out of 10

Questions about B25 water

Is B25 tap water safe to drink?

Based on the latest tests, B25 (Birmingham) 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 B25 water?

We tested 20 contaminants in B25 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 B25?

B25 (Birmingham) 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 B25?

B25 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 B25 water?

The tap-water tests we hold for B25 do not include a PFAS result. Environment Agency monitoring found PFAS in 157 river and groundwater samples from 8 sites within 10 km of B25, the highest being PFOS at 0.016 µg/L about 9.8 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 B25?

The Environment Agency rated the Cole from Springfield to Hatchford-Kingshurst 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 insects and other small river life, phosphate and dissolved oxygen. 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 B25, which is treated before it reaches homes.

Keep reading

PFAS explainedHow to test your waterBest water filtersFilter shower headsWater testing kitsAll of BirminghamUK water rankingsWater hardness checkerWater hardness map

River and groundwater readings near B25

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
Cadmium0.02 mg/L0.005 mg/L
pH8 pHNone
Temperature7 °CNone
Conductivity534 µS/cmNone
Ammonia0.12 mg/L0.5 mg/L
Nitrate2.6 mg/L50 mg/L
Nitrite0.022 mg/L0.5 mg/L
Phosphate0.093 mg/LNone
Dissolved Oxygen11.4 mg/LNone
Chromium0.00118 mg/L0.05 mg/L
Zinc0.013 mg/LNone
Nickel0.00328 mg/L0.02 mg/L
Aluminium0.0128 mg/L0.2 mg/L
Copper0.0048 mg/L2 mg/L

Get alerts for your area

We'll email you when water quality data changes for B25.

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