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tapwater
England and Wales average 9.0

Tap water in LS9, LeedsSafe to drink.Slightly hard.

Supplied by Yorkshire Water. 1,629 samples, 25 substances, latest on 29 September 2026. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.5 / 10

The tank is as full as the score. The specks are the minerals that make water hard.

What to do about it

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What's in a glass of LS9 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 30% of it. 19 of 20 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitChromium: 0.00019 mg/L, <1% of the 0.05 mg/L limitChromium<1%Cadmium: 0.000031 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Selenium: 0.00043 mg/L, 1% of the 0.04 mg/L limitSelenium1%Arsenic: 0.00015 mg/L, 1% of the 0.01 mg/L limitArsenic1%Nitrite: 0.008 mg/L, 2% of the 0.5 mg/L limitNitrite2%Boron: 0.0199 mg/L, 2% of the 1 mg/L limitBoron2%Manganese: 0.00101 mg/L, 2% of the 0.05 mg/L limitManganese2%Copper: 0.041 mg/L, 2% of the 2 mg/L limitCopper2%Turbidity: 0.11 NTU, 3% of the 4 NTU limitTurbidity3%Antimony: 0.000148 mg/L, 3% of the 0.005 mg/L limitAntimony3%Iron: 0.00758 mg/L, 4% of the 0.2 mg/L limitIron4%Mercury: 0.00004 mg/L, 4% of the 0.001 mg/L limitMercury4%Nickel: 0.00082 mg/L, 4% of the 0.02 mg/L limitNickel4%Aluminium: 0.0111 mg/L, 6% of the 0.2 mg/L limitAluminium6%Fluoride: 0.09 mg/L, 6% of the 1.5 mg/L limitFluoride6%Nitrate: 6.28 mg/L, 13% of the 50 mg/L limitNitrate13%Lead: 0.00143 mg/L, 14% of the 0.01 mg/L limitLead14%Colour: 3 mg/L Pt/Co, 15% of the 20 mg/L Pt/Co limitColour15%Bromate: 0.0015 mg/L, 15% of the 0.01 mg/L limitBromate15%Trihalomethanes: 0.0295 mg/L, 30% of the 0.1 mg/L limitTrihalomethanes30%
  1. Trihalomethanes30%
  2. Colour15%
  3. Bromate15%
  4. Lead14%
  5. Nitrate13%
  6. Fluoride6%
  7. Aluminium6%
  8. Nickel4%
  9. Mercury4%
  10. Iron4%
  11. Antimony3%
  12. Turbidity3%
  13. Copper2%
  14. Manganese2%
  15. Boron2%
  16. Nitrite2%
  17. Arsenic1%
  18. Selenium1%
  19. Cadmium<1%
  20. Chromium<1%
  • Coliform Bacteria none found
  • Conductivity 342 µS/cm
  • E. coli none found
  • Phosphate 0 mg/L
All 25 results as a table
SubstanceResultLegal limitShare of limit
Aluminium0.0111 mg/L0.2 mg/L
6%
Coliform Bacteria0 count/100mlMust be zeroNone found
Iron0.00758 mg/L0.2 mg/L
4%
Manganese0.00101 mg/L0.05 mg/L
2%
Colour3 mg/L Pt/Co20 mg/L Pt/Co
15%
Conductivity342 µS/cmNo legal limit–
Turbidity0.11 NTU4 NTU
3%
E. coli0 count/100mlMust be zeroNone found
Phosphate0 mg/LNo legal limit–
Nickel0.00082 mg/L0.02 mg/L
4%
Mercury0.00004 mg/L0.001 mg/L
4%
Copper0.041 mg/L2 mg/L
2%
Lead0.00143 mg/L0.01 mg/L
14%
Selenium0.00043 mg/L0.04 mg/L
1%
Bromate0.0015 mg/L0.01 mg/L
15%
Fluoride0.09 mg/L1.5 mg/L
6%
Nitrite0.008 mg/L0.5 mg/L
2%
Nitrate6.28 mg/L50 mg/L
13%
Chromium0.00019 mg/L0.05 mg/L
<1%
Cadmium0.000031 mg/L0.005 mg/L
<1%
Arsenic0.00015 mg/L0.01 mg/L
1%
Antimony0.000148 mg/L0.005 mg/L
3%
Boron0.0199 mg/L1 mg/L
2%
Trihalomethanes0.0295 mg/L0.1 mg/L
30%
Hardness (as CaCO3)137 mg/LNo legal limit–

141mg of limescale minerals in every litre

Middling hardness. Some scale, slowly

Below the point where a softener pays for itself. Descaling the kettle now and then is all most homes need.

Soft400 mg/L
Outside your tap

Your river is the Meanwood Beck from Source to River Aire, rated moderate

The Environment Agency rated the Meanwood Beck from Source to River Aire as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. 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

48

forever-chemical detections in nearby rivers and groundwater

At 5 sites. The highest was PFOA at 0.043 µg/L, at Adel Beck at Adel Mill Bridge, 8.5 km away, in May 2024. These are river and borehole samples, not tests of your tap water.

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

LS9 in short

Tap water in LS9 (Leeds) is supplied by Yorkshire Water in the Leeds Central zone and scores 9.5 out of 10, against an England and Wales average of 9.0. None of the 25 tested substances came close to a limit. The latest sample is from 29 September 2026.

  • 19th cleanest of 28 areas tested in Leeds9 areas in Leeds scored lower. The best is LS21 on 9.7. Every area in Leeds
  • PFAS found at 5 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFOA about 8.5 km away. What was measured
  • Nothing tested came within 40% of its legal limitThe highest was Trihalomethanes at 30% of the 0.1 mg/L maximum. See every reading

Next door

LS39.6 out of 10 · 115 mg/LLS79.4 out of 10 · 141 mg/LLS19.5 out of 10 · 104 mg/LLS49.5 out of 10 · 129 mg/LLS59.5 out of 10 · 137 mg/LLS29.5 out of 10 · 116 mg/LLS89.5 out of 10 · 157 mg/LLS69.5 out of 10 · 135 mg/LBD119.6 out of 10 · 93 mg/LLS159.5 out of 10 · 179 mg/L

Questions about LS9 water

Is LS9 tap water safe to drink?

Based on the latest tests, LS9 (Leeds) water scores 9.5/10, which is safe. 0 of 25 tested contaminants exceeded recommended levels. Water is supplied by Yorkshire Water.

What contaminants are in LS9 water?

We tested 25 contaminants in LS9 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 LS9?

LS9 (Leeds) is supplied by Yorkshire Water. You can view their full profile and compliance data on our supplier page.

Is LS9 water hard or soft?

Water in LS9 (Leeds) has a hardness of 141 mg/L CaCO3, which is classified as moderately hard. This is a moderate hardness level.

Should I use a water filter in LS9?

LS9 water scored 9.5/10 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 LS9 water?

The tap-water tests we hold for LS9 do not include a PFAS result. Environment Agency monitoring found PFAS in 48 river and groundwater samples from 5 sites within 10 km of LS9, the highest being PFOA at 0.043 µg/L about 8.5 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 LS9?

The Environment Agency rated the Meanwood Beck from Source to River Aire as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. 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 LS9, which is treated before it reaches homes.

Keep reading

PFAS explainedHow to test your waterBest water filtersFilter shower headsWater testing kitsAll of LeedsUK water rankingsWater hardness checkerWater hardness map

River and groundwater readings near LS9

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
Ammonia3.88 mg/L0.5 mg/L
pH8.49 pHNone
Temperature8.4 °CNone
Conductivity493 µS/cmNone
Nitrate2.8 mg/L50 mg/L
Nitrite0.0045 mg/L0.5 mg/L
Phosphate0.031 mg/LNone
Dissolved Oxygen12.8 mg/LNone
Copper0.00426 mg/L2 mg/L
Zinc0.0212 mg/LNone
Hardness (as CaCO3)126 mg/LNone

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We'll email you when water quality data changes for LS9.

Source: Yorkshire Water 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