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tapwater
England and Wales average 9.0

Tap water in TF10, Telford and WrekinSafe to drink.

Supplied by Severn Trent. 1,485 samples, 22 substances, latest on 23 December 2025. Everything is inside the legal limit. One result, nitrate, sits close to the line.

See the filter we recommendSee everything that was tested

8.4 / 10

The tank is as full as the score.

What to do about it

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What's in a glass of TF10 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 75% of it. 16 of 19 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCadmium: 0.00001 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%Selenium: 0.00035 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Antimony: 0.000059 mg/L, 1% of the 0.005 mg/L limitAntimony1%Manganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Mercury: 0.000022 mg/L, 2% of the 0.001 mg/L limitMercury2%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Boron: 0.03 mg/L, 3% of the 1 mg/L limitBoron3%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%Fluoride: 0.1 mg/L, 7% of the 1.5 mg/L limitFluoride7%Trihalomethanes: 0.00717 mg/L, 7% of the 0.1 mg/L limitTrihalomethanes7%Copper: 0.147 mg/L, 7% of the 2 mg/L limitCopper7%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Lead: 0.0013 mg/L, 13% of the 0.01 mg/L limitLead13%Nickel: 0.0063 mg/L, 32% of the 0.02 mg/L limitNickel32%Arsenic: 0.00681 mg/L, 68% of the 0.01 mg/L limitArsenic68%Nitrate: 37.5 mg/L, 75% of the 50 mg/L limitNitrate75%
  1. Nitrate75%
  2. Arsenic68%
  3. Nickel32%
  4. Lead13%
  5. Aluminium11%
  6. Copper7%
  7. Trihalomethanes7%
  8. Fluoride7%
  9. Colour4%
  10. Iron3%
  11. Turbidity3%
  12. Boron3%
  13. Mercury2%
  14. Manganese1%
  15. Antimony1%
  16. Selenium<1%
  17. Chromium<1%
  18. Nitrite<1%
  19. Cadmium<1%
  • Conductivity 570 µS/cm
  • pH 7.62 pH
  • Phosphate 1.03 mg/L
All 22 results as a table
SubstanceResultLegal limitShare of limit
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Turbidity0.12 NTU4 NTU
3%
Conductivity570 µS/cmNo legal limit–
pH7.62 pHNo legal limit–
Boron0.03 mg/L1 mg/L
3%
Chromium0.00042 mg/L0.05 mg/L
<1%
Mercury0.000022 mg/L0.001 mg/L
2%
Nitrate37.5 mg/L50 mg/L
75%
Nitrite0.003 mg/L0.5 mg/L
<1%
Trihalomethanes0.00717 mg/L0.1 mg/L
7%
Nickel0.0063 mg/L0.02 mg/L
32%
Lead0.0013 mg/L0.01 mg/L
13%
Antimony0.000059 mg/L0.005 mg/L
1%
Selenium0.00035 mg/L0.04 mg/L
<1%
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.007 mg/L0.2 mg/L
3%
Manganese0.00073 mg/L0.05 mg/L
1%
Copper0.147 mg/L2 mg/L
7%
Fluoride0.1 mg/L1.5 mg/L
7%
Arsenic0.00681 mg/L0.01 mg/L
68%
Cadmium0.00001 mg/L0.005 mg/L
<1%
Phosphate1.03 mg/LNo legal limit–
Outside your tap

Your river is the Strine Bk - source to conf Wall Bk, rated moderate

The Environment Agency rated the Strine Bk - source to conf Wall Bk as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by 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

TF10 in short

Tap water in TF10 (Telford and Wrekin) is supplied by Severn Trent in the Telford and Wrekin Central zone and scores 8.4 out of 10, against an England and Wales average of 9.0. None of the 22 tested substances came close to a limit. The latest sample is from 23 December 2025.

  • The lowest score of the 9 areas tested in Telford and WrekinTF10 scores 8.4 out of 10. The best in Telford and Wrekin, TF6, scores 9.7.
  • Nitrate is the reading closest to its limit, at 75% of the 50 mg/L maximumIt passed, but with less headroom than anything else tested here. Worth watching in the next round of results. See every reading
  • Every one of the 8 neighbouring districts scores higherTF6 next door scores 9.7, against 8.4 here. Supply zones, not distance, explain the gap. See TF6

Next door

TF19.3 out of 10TF39.1 out of 10TF29.2 out of 10TF59.3 out of 10TF89.1 out of 10TF49.3 out of 10TF69.7 out of 10TF79.0 out of 10

Questions about TF10 water

Is TF10 tap water safe to drink?

Based on the latest tests, TF10 (Telford and Wrekin) water scores 8.4/10, which is safe. 0 of 22 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in TF10 water?

We tested 22 contaminants in TF10 water. None exceeded recommended safe levels.

Who supplies water in TF10?

TF10 (Telford and Wrekin) 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 TF10?

TF10 water scored 8.4/10 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 TF10 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for TF10, 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 TF10?

The Environment Agency rated the Strine Bk - source to conf Wall Bk as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by 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 TF10, which is treated before it reaches homes.

Keep reading

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

River and groundwater readings near TF10

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
Turbidity8.4 NTU4 NTU
pH7.91 pHNone
Temperature16.3 °CNone
Conductivity167 µS/cmNone
Nitrate8.8 mg/L50 mg/L
Nitrite0.025 mg/L0.5 mg/L
Phosphate0.095 mg/LNone
Dissolved Oxygen7.97 mg/LNone
Ammonia0.044 mg/L0.5 mg/L
Lead0.00149 mg/L0.01 mg/L
Cadmium0.000146 mg/L0.005 mg/L
Hardness (as CaCO3)333 mg/LNone
Chromium0.000546 mg/L0.05 mg/L
Zinc0.0153 mg/LNone
Copper0.00503 mg/L2 mg/L

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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