Tap water in B11, BirminghamSafe to drink.
Supplied by Severn Trent. 1,026 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 B11 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 47% of it. 15 of 17 substances used under a quarter of theirs.
- Fluoride47%
- Trihalomethanes26%
- Nitrate15%
- Aluminium11%
- Nickel6%
- Iron5%
- Colour4%
- Turbidity3%
- Nitrite3%
- Manganese2%
- Arsenic1%
- Lead1%
- Antimony1%
- Copper<1%
- Chromium<1%
- Cadmium<1%
- Selenium<1%
- pH 8.06 pH
- Conductivity 123 µS/cm
- Phosphate 0.52 mg/L
All 20 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Manganese | 0.00084 mg/L | 0.05 mg/L | 2% |
| Colour | 0.8 mg/L Pt/Co | 20 mg/L Pt/Co | 4% |
| Copper | 0.019 mg/L | 2 mg/L | <1% |
| Fluoride | 0.71 mg/L | 1.5 mg/L | 47% |
| Arsenic | 0.00014 mg/L | 0.01 mg/L | 1% |
| Cadmium | 0.00002 mg/L | 0.005 mg/L | <1% |
| Chromium | 0.00042 mg/L | 0.05 mg/L | <1% |
| Nickel | 0.0011 mg/L | 0.02 mg/L | 6% |
| Lead | 0.00014 mg/L | 0.01 mg/L | 1% |
| Antimony | 0.000059 mg/L | 0.005 mg/L | 1% |
| Selenium | 0.00007 mg/L | 0.04 mg/L | <1% |
| Turbidity | 0.12 NTU | 4 NTU | 3% |
| pH | 8.06 pH | No legal limit | – |
| Nitrate | 7.3 mg/L | 50 mg/L | 15% |
| Nitrite | 0.013 mg/L | 0.5 mg/L | 3% |
| Aluminium | 0.021 mg/L | 0.2 mg/L | 11% |
| Iron | 0.0102 mg/L | 0.2 mg/L | 5% |
| Conductivity | 123 µS/cm | No legal limit | – |
| Trihalomethanes | 0.0257 mg/L | 0.1 mg/L | 26% |
| Phosphate | 0.52 mg/L | No legal limit | – |
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
44
forever-chemical detections in nearby rivers and groundwater
At 4 sites. The highest was PFOS (linear) at 0.0093 µg/L, at RSN1442 Hatchford-Kingshurst Brook at Holly Lane, 7.1 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
B11 in short
Tap water in B11 (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.
- 5th cleanest of 42 areas tested in BirminghamOnly 4 areas in Birmingham scored higher. The best is B2 on 9.6. Every area in Birmingham
- Fluoride is the reading closest to its limit, at 47% of the 1.5 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
- PFAS found at 4 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFOS (linear) about 7.1 km away. What was measured
Questions about B11 water
Is B11 tap water safe to drink?
Based on the latest tests, B11 (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 B11 water?
We tested 20 contaminants in B11 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 B11?
B11 (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 B11?
B11 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 B11 water?
The tap-water tests we hold for B11 do not include a PFAS result. Environment Agency monitoring found PFAS in 44 river and groundwater samples from 4 sites within 10 km of B11, the highest being PFOS (linear) at 0.0093 µg/L about 7.1 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 B11?
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 B11, which is treated before it reaches homes.
Keep reading
- Best Filter for PFAS RemovalThe filters with independent certification to remove forever chemicals
- PFAS Forever ChemicalsWhat PFAS are and how to reduce your exposure at home
- Is UK Tap Water Safe?Everything you need to know about tap water safety in the UK
- Best Water Filters UKEvery filter type compared on what it actually removes
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 B11
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.
| Substance | Reading | Drinking water limit |
|---|---|---|
| Cadmium | 0.02 mg/L | 0.005 mg/L |
| pH | 8 pH | None |
| Temperature | 7 °C | None |
| Conductivity | 534 µS/cm | None |
| Ammonia | 0.12 mg/L | 0.5 mg/L |
| Nitrate | 2.6 mg/L | 50 mg/L |
| Nitrite | 0.022 mg/L | 0.5 mg/L |
| Phosphate | 0.093 mg/L | None |
| Dissolved Oxygen | 11.4 mg/L | None |
| Mercury | 0.0000116 mg/L | 0.001 mg/L |
| Chromium | 0.00118 mg/L | 0.05 mg/L |
| Zinc | 0.013 mg/L | None |
| Nickel | 0.00328 mg/L | 0.02 mg/L |
| Aluminium | 0.0128 mg/L | 0.2 mg/L |
| Copper | 0.0048 mg/L | 2 mg/L |
| PFAS (total) | 0.0193 µg/L | None |
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