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tapwater
England and Wales average 9.0

Tap water in LE17, HarboroughSafe to drink.

Supplied by Severn Trent. 1,090 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 LE17 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 45% of it. 17 of 19 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCopper: 0.0031 mg/L, <1% of the 2 mg/L limitCopper<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%Lead: 0.00014 mg/L, 1% of the 0.01 mg/L limitLead1%Selenium: 0.0006 mg/L, 1% of the 0.04 mg/L limitSelenium1%Arsenic: 0.00015 mg/L, 1% of the 0.01 mg/L limitArsenic1%Mercury: 0.000022 mg/L, 2% of the 0.001 mg/L limitMercury2%Cadmium: 0.00012 mg/L, 2% of the 0.005 mg/L limitCadmium2%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Antimony: 0.000231 mg/L, 5% of the 0.005 mg/L limitAntimony5%Manganese: 0.00248 mg/L, 5% of the 0.05 mg/L limitManganese5%Boron: 0.074 mg/L, 7% of the 1 mg/L limitBoron7%Nickel: 0.0019 mg/L, 10% of the 0.02 mg/L limitNickel10%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Colour: 2.2 mg/L Pt/Co, 11% of the 20 mg/L Pt/Co limitColour11%Fluoride: 0.21 mg/L, 14% of the 1.5 mg/L limitFluoride14%Iron: 0.0306 mg/L, 15% of the 0.2 mg/L limitIron15%Nitrate: 13.5 mg/L, 27% of the 50 mg/L limitNitrate27%Trihalomethanes: 0.045 mg/L, 45% of the 0.1 mg/L limitTrihalomethanes45%
  1. Trihalomethanes45%
  2. Nitrate27%
  3. Iron15%
  4. Fluoride14%
  5. Colour11%
  6. Aluminium11%
  7. Nickel10%
  8. Boron7%
  9. Manganese5%
  10. Antimony5%
  11. Turbidity3%
  12. Cadmium2%
  13. Mercury2%
  14. Selenium1%
  15. Arsenic1%
  16. Lead1%
  17. Chromium<1%
  18. Nitrite<1%
  19. Copper<1%
  • pH 7.29 pH
  • Conductivity 478 µS/cm
  • Phosphate 0.971 mg/L
All 22 results as a table
SubstanceResultLegal limitShare of limit
Selenium0.0006 mg/L0.04 mg/L
1%
Boron0.074 mg/L1 mg/L
7%
Copper0.0031 mg/L2 mg/L
<1%
Trihalomethanes0.045 mg/L0.1 mg/L
45%
Fluoride0.21 mg/L1.5 mg/L
14%
Arsenic0.00015 mg/L0.01 mg/L
1%
Cadmium0.00012 mg/L0.005 mg/L
2%
Chromium0.00042 mg/L0.05 mg/L
<1%
Mercury0.000022 mg/L0.001 mg/L
2%
Nickel0.0019 mg/L0.02 mg/L
10%
Lead0.00014 mg/L0.01 mg/L
1%
Antimony0.000231 mg/L0.005 mg/L
5%
Iron0.0306 mg/L0.2 mg/L
15%
Manganese0.00248 mg/L0.05 mg/L
5%
pH7.29 pHNo legal limit–
Aluminium0.021 mg/L0.2 mg/L
11%
Colour2.2 mg/L Pt/Co20 mg/L Pt/Co
11%
Turbidity0.12 NTU4 NTU
3%
Conductivity478 µS/cmNo legal limit–
Nitrate13.5 mg/L50 mg/L
27%
Nitrite0.003 mg/L0.5 mg/L
<1%
Phosphate0.971 mg/LNo legal limit–
Outside your tap

Your river is the Swift source to conf Avon, rated moderate

The Environment Agency rated the Swift source to conf Avon as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by dissolved oxygen, phosphate and water plants and algae. 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

LE17 in short

Tap water in LE17 (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.

  • Trihalomethanes is the reading closest to its limit, at 45% of the 0.1 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 LE17. Compare every area
  • 22 substances checked across 1,090 samplesResults were collected between January 2025 and December 2025 by Severn Trent.

Next door

LE169.2 out of 10

Questions about LE17 water

Is LE17 tap water safe to drink?

Based on the latest tests, LE17 (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 LE17 water?

We tested 22 contaminants in LE17 water. None exceeded recommended safe levels.

Who supplies water in LE17?

LE17 (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 LE17?

LE17 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 LE17 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for LE17, 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 LE17?

The Environment Agency rated the Swift source to conf Avon as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by dissolved oxygen, phosphate and water plants and algae. 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 LE17, 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 LE17

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
pH7.55 pHNone
Temperature8.5 °CNone
Conductivity658 µS/cmNone
Ammonia0.036 mg/L0.5 mg/L
Nitrate2.8 mg/L50 mg/L
Nitrite0.022 mg/L0.5 mg/L
Phosphate0.055 mg/LNone
Dissolved Oxygen11.4 mg/LNone
Iron0.057 mg/L0.2 mg/L

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We'll email you when water quality data changes for LE17.

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