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tapwater
England and Wales average 9.0

Tap water in LE16, HarboroughSafe to drink.

Supplied by Severn Trent. 2,037 samples, 22 substances, latest on 17 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.2 / 10

The tank is as full as the score.

What to do about it

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What's in a glass of LE16 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 46% of it. 18 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%Selenium: 0.00009 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Chromium: 0.00042 mg/L, <1% of the 0.05 mg/L limitChromium<1%Manganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Lead: 0.00019 mg/L, 2% of the 0.01 mg/L limitLead2%Mercury: 0.000022 mg/L, 2% of the 0.001 mg/L limitMercury2%Nitrite: 0.012 mg/L, 2% of the 0.5 mg/L limitNitrite2%Copper: 0.0551 mg/L, 3% of the 2 mg/L limitCopper3%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Arsenic: 0.00033 mg/L, 3% of the 0.01 mg/L limitArsenic3%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Antimony: 0.000328 mg/L, 7% of the 0.005 mg/L limitAntimony7%Boron: 0.077 mg/L, 8% of the 1 mg/L limitBoron8%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Nickel: 0.0024 mg/L, 12% of the 0.02 mg/L limitNickel12%Trihalomethanes: 0.0127 mg/L, 13% of the 0.1 mg/L limitTrihalomethanes13%Iron: 0.0306 mg/L, 15% of the 0.2 mg/L limitIron15%Fluoride: 0.27 mg/L, 18% of the 1.5 mg/L limitFluoride18%Nitrate: 22.8 mg/L, 46% of the 50 mg/L limitNitrate46%
  1. Nitrate46%
  2. Fluoride18%
  3. Iron15%
  4. Trihalomethanes13%
  5. Nickel12%
  6. Aluminium11%
  7. Boron8%
  8. Antimony7%
  9. Colour4%
  10. Arsenic3%
  11. Turbidity3%
  12. Copper3%
  13. Nitrite2%
  14. Mercury2%
  15. Lead2%
  16. Manganese1%
  17. Chromium<1%
  18. Selenium<1%
  19. Cadmium<1%
  • pH 7.37 pH
  • Conductivity 551 µS/cm
  • Phosphate 0.769 mg/L
All 22 results as a table
SubstanceResultLegal limitShare of limit
pH7.37 pHNo legal limit–
Nitrate22.8 mg/L50 mg/L
46%
Nitrite0.012 mg/L0.5 mg/L
2%
Aluminium0.021 mg/L0.2 mg/L
11%
Antimony0.000328 mg/L0.005 mg/L
7%
Selenium0.00009 mg/L0.04 mg/L
<1%
Iron0.0306 mg/L0.2 mg/L
15%
Manganese0.00073 mg/L0.05 mg/L
1%
Conductivity551 µS/cmNo legal limit–
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Copper0.0551 mg/L2 mg/L
3%
Boron0.077 mg/L1 mg/L
8%
Trihalomethanes0.0127 mg/L0.1 mg/L
13%
Fluoride0.27 mg/L1.5 mg/L
18%
Turbidity0.12 NTU4 NTU
3%
Arsenic0.00033 mg/L0.01 mg/L
3%
Cadmium0.00001 mg/L0.005 mg/L
<1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Mercury0.000022 mg/L0.001 mg/L
2%
Nickel0.0024 mg/L0.02 mg/L
12%
Lead0.00019 mg/L0.01 mg/L
2%
Phosphate0.769 mg/LNo legal limit–
Outside your tap

Your river is the Welland - conf Jordan to conf Langton Bk, rated moderate

The Environment Agency rated the Welland - conf Jordan to conf Langton 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 fish, water plants and algae 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. Its ecological rating has improved since the previous assessment.

None of this is a test of your tap water. Environment Agency record · River health across England

LE16 in short

Tap water in LE16 (Harborough) is supplied by Severn Trent in the Harborough Central zone and scores 9.2 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 17 December 2025.

  • Nitrate is the reading closest to its limit, at 46% of the 50 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • Right on the national average of 9 out of 10Most of the country's tested districts land within half a point of LE16. Compare every area
  • 22 substances checked across 2,037 samplesResults were collected between January 2025 and December 2025 by Severn Trent.

Next door

LE179.2 out of 10

Questions about LE16 water

Is LE16 tap water safe to drink?

Based on the latest tests, LE16 (Harborough) water scores 9.2/10, which is safe. 0 of 22 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in LE16 water?

We tested 22 contaminants in LE16 water. None exceeded recommended safe levels.

Who supplies water in LE16?

LE16 (Harborough) 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 LE16?

LE16 water scored 9.2/10 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 LE16 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for LE16, 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 LE16?

The Environment Agency rated the Welland - conf Jordan to conf Langton 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 fish, water plants and algae 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. Its ecological rating has improved since the previous assessment. This is a rating of the river, not of tap water in LE16, 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 LE16

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
pH7.56 pHNone
Temperature17.3 °CNone
Conductivity906 µS/cmNone
Ammonia0.12 mg/L0.5 mg/L
Nitrate0.6 mg/L50 mg/L
Nitrite0.037 mg/L0.5 mg/L
Phosphate0.29 mg/LNone
Dissolved Oxygen6.55 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