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tapwater
England and Wales average 9.0

Tap water in LE18, Oadby and WigstonSafe to drink.

Supplied by Severn Trent. 847 samples, 20 substances, latest on 19 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.1 / 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 LE18 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.

Trihalomethanes came closest to a limit, at 49% of it. 15 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitChromium: 0.00042 mg/L, <1% of the 0.05 mg/L limitChromium<1%Selenium: 0.00058 mg/L, 1% of the 0.04 mg/L limitSelenium1%Manganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Copper: 0.0309 mg/L, 2% of the 2 mg/L limitCopper2%Arsenic: 0.00016 mg/L, 2% of the 0.01 mg/L limitArsenic2%Cadmium: 0.0001 mg/L, 2% of the 0.005 mg/L limitCadmium2%Lead: 0.00022 mg/L, 2% of the 0.01 mg/L limitLead2%Nitrite: 0.013 mg/L, 3% of the 0.5 mg/L limitNitrite3%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Iron: 0.0084 mg/L, 4% of the 0.2 mg/L limitIron4%Antimony: 0.000242 mg/L, 5% of the 0.005 mg/L limitAntimony5%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Fluoride: 0.18 mg/L, 12% of the 1.5 mg/L limitFluoride12%Colour: 2.8 mg/L Pt/Co, 14% of the 20 mg/L Pt/Co limitColour14%Nickel: 0.0037 mg/L, 19% of the 0.02 mg/L limitNickel19%Nitrate: 14.6 mg/L, 29% of the 50 mg/L limitNitrate29%Trihalomethanes: 0.0487 mg/L, 49% of the 0.1 mg/L limitTrihalomethanes49%
  1. Trihalomethanes49%
  2. Nitrate29%
  3. Nickel19%
  4. Colour14%
  5. Fluoride12%
  6. Aluminium11%
  7. Antimony5%
  8. Iron4%
  9. Turbidity3%
  10. Nitrite3%
  11. Lead2%
  12. Cadmium2%
  13. Arsenic2%
  14. Copper2%
  15. Manganese1%
  16. Selenium1%
  17. Chromium<1%
  • pH 7.19 pH
  • Conductivity 467 µS/cm
  • Phosphate 1.01 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Colour2.8 mg/L Pt/Co20 mg/L Pt/Co
14%
Turbidity0.12 NTU4 NTU
3%
pH7.19 pHNo legal limit–
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.0084 mg/L0.2 mg/L
4%
Manganese0.00073 mg/L0.05 mg/L
1%
Conductivity467 µS/cmNo legal limit–
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.0037 mg/L0.02 mg/L
19%
Lead0.00022 mg/L0.01 mg/L
2%
Antimony0.000242 mg/L0.005 mg/L
5%
Selenium0.00058 mg/L0.04 mg/L
1%
Copper0.0309 mg/L2 mg/L
2%
Fluoride0.18 mg/L1.5 mg/L
12%
Arsenic0.00016 mg/L0.01 mg/L
2%
Cadmium0.0001 mg/L0.005 mg/L
2%
Nitrate14.6 mg/L50 mg/L
29%
Nitrite0.013 mg/L0.5 mg/L
3%
Trihalomethanes0.0487 mg/L0.1 mg/L
49%
Phosphate1.01 mg/LNo legal limit–
Outside your tap

Your river is the Sence from Countesthorpe Brook to Soar, rated poor

The Environment Agency rated the Sence from Countesthorpe Brook to Soar 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, dissolved oxygen 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

30

forever-chemical detections in nearby rivers and groundwater

At 1 site. The highest was PFBA at 0.0077 µg/L, at RSN0526 Littlehorpe, 7.1 km away, in June 2026. These are river and borehole samples, not tests of your tap water.

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

LE18 in short

Tap water in LE18 (Oadby and Wigston) is supplied by Severn Trent in the Oadby and Wigston Central zone and scores 9.1 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.

  • Trihalomethanes is the reading closest to its limit, at 49% of the 0.1 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • PFAS found at 1 monitoring site within 10 kmThose are river and groundwater samples, not tap water. The highest was PFBA about 7.1 km away. What was measured
  • Scores higher than 2 of 3 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.

Next door

LE29.0 out of 10LE219.0 out of 10LE89.1 out of 10

Questions about LE18 water

Is LE18 tap water safe to drink?

Based on the latest tests, LE18 (Oadby and Wigston) water scores 9.1/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in LE18 water?

We tested 20 contaminants in LE18 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 LE18?

LE18 (Oadby and Wigston) 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 LE18?

LE18 water scored 9.1/10 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 LE18 water?

The tap-water tests we hold for LE18 do not include a PFAS result. Environment Agency monitoring found PFAS in 30 river and groundwater samples from 1 sites within 10 km of LE18, the highest being PFBA at 0.0077 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 LE18?

The Environment Agency rated the Sence from Countesthorpe Brook to Soar 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, dissolved oxygen 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 LE18, 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 LE18

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
pH7.99 pHNone
Temperature18.7 °CNone
Ammonia0.039 mg/L0.5 mg/L
Nitrate16 mg/L50 mg/L
Nitrite0.042 mg/L0.5 mg/L
Phosphate0.17 mg/LNone
Dissolved Oxygen8.95 mg/LNone

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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