Tap water in WR4, WorcesterSafe to drink.
Supplied by Severn Trent. 926 samples, 20 substances, latest on 19 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 WR4 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.
Nitrate came closest to a limit, at 37% of it. 16 of 17 substances used under a quarter of theirs.
- Nitrate37%
- Trihalomethanes22%
- Arsenic11%
- Aluminium11%
- Nickel5%
- Colour4%
- Fluoride4%
- Iron3%
- Turbidity3%
- Antimony2%
- Manganese1%
- Lead1%
- Chromium<1%
- Copper<1%
- Nitrite<1%
- Selenium<1%
- Cadmium<1%
- pH 7.48 pH
- Conductivity 337 µS/cm
- Phosphate 0.861 mg/L
All 20 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Colour | 0.8 mg/L Pt/Co | 20 mg/L Pt/Co | 4% |
| Turbidity | 0.12 NTU | 4 NTU | 3% |
| pH | 7.48 pH | No legal limit | – |
| Iron | 0.007 mg/L | 0.2 mg/L | 3% |
| Manganese | 0.00073 mg/L | 0.05 mg/L | 1% |
| Conductivity | 337 µS/cm | No legal limit | – |
| Aluminium | 0.021 mg/L | 0.2 mg/L | 11% |
| Nitrate | 18.4 mg/L | 50 mg/L | 37% |
| Nitrite | 0.003 mg/L | 0.5 mg/L | <1% |
| Chromium | 0.00042 mg/L | 0.05 mg/L | <1% |
| Trihalomethanes | 0.0217 mg/L | 0.1 mg/L | 22% |
| Nickel | 0.001 mg/L | 0.02 mg/L | 5% |
| Lead | 0.00014 mg/L | 0.01 mg/L | 1% |
| Antimony | 0.0001 mg/L | 0.005 mg/L | 2% |
| Selenium | 0.00017 mg/L | 0.04 mg/L | <1% |
| Copper | 0.0164 mg/L | 2 mg/L | <1% |
| Fluoride | 0.06 mg/L | 1.5 mg/L | 4% |
| Arsenic | 0.00109 mg/L | 0.01 mg/L | 11% |
| Cadmium | 0.00002 mg/L | 0.005 mg/L | <1% |
| Phosphate | 0.861 mg/L | No legal limit | – |
Your river is the Barbourne Bk - source to R Severn, rated moderate
The Environment Agency rated the Barbourne Bk - source to R Severn as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by ammonia 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
WR4 in short
Tap water in WR4 (Worcester) is supplied by Severn Trent in the Worcester 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 19 December 2025.
- The cleanest tap water of the 5 areas tested in WorcesterWR4 scores 9.3 out of 10, ahead of WR2 in second place on 9.2.
- Scores higher than all 4 neighbouring districtsThe nearest rival is WR2 on 9.2, against 9.3 here. Compare with WR2
- Nothing tested came within 40% of its legal limitThe highest was Nitrate at 37% of the 50 mg/L maximum. See every reading
Questions about WR4 water
Is WR4 tap water safe to drink?
Based on the latest tests, WR4 (Worcester) 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 WR4 water?
We tested 20 contaminants in WR4 water. None exceeded recommended safe levels.
Who supplies water in WR4?
WR4 (Worcester) 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 WR4?
WR4 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 WR4 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for WR4, 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 WR4?
The Environment Agency rated the Barbourne Bk - source to R Severn as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by ammonia 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 WR4, which is treated before it reaches homes.
Keep reading
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River and groundwater readings near WR4
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.
Get alerts for your area
We'll email you when water quality data changes for WR4.