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tapwater
England and Wales average 9.0

Tap water in LS3, LeedsSafe to drink.Moderately soft.

Supplied by Yorkshire Water. 370 samples, 25 substances, latest on 20 August 2026. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.6 / 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 LS3 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 18% of it. 20 of 20 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitChromium: 0.00008 mg/L, <1% of the 0.05 mg/L limitChromium<1%Lead: 0.00002 mg/L, <1% of the 0.01 mg/L limitLead<1%Copper: 0.00723 mg/L, <1% of the 2 mg/L limitCopper<1%Cadmium: 0.000021 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Selenium: 0.00025 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Arsenic: 0.00011 mg/L, 1% of the 0.01 mg/L limitArsenic1%Nitrite: 0.008 mg/L, 2% of the 0.5 mg/L limitNitrite2%Boron: 0.0166 mg/L, 2% of the 1 mg/L limitBoron2%Antimony: 0.000095 mg/L, 2% of the 0.005 mg/L limitAntimony2%Manganese: 0.00101 mg/L, 2% of the 0.05 mg/L limitManganese2%Turbidity: 0.11 NTU, 3% of the 4 NTU limitTurbidity3%Iron: 0.00629 mg/L, 3% of the 0.2 mg/L limitIron3%Mercury: 0.00004 mg/L, 4% of the 0.001 mg/L limitMercury4%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%Nickel: 0.00154 mg/L, 8% of the 0.02 mg/L limitNickel8%Bromate: 0.0008 mg/L, 8% of the 0.01 mg/L limitBromate8%Trihalomethanes: 0.0119 mg/L, 12% of the 0.1 mg/L limitTrihalomethanes12%Colour: 3 mg/L Pt/Co, 15% of the 20 mg/L Pt/Co limitColour15%Nitrate: 8.88 mg/L, 18% of the 50 mg/L limitNitrate18%
  1. Nitrate18%
  2. Colour15%
  3. Trihalomethanes12%
  4. Bromate8%
  5. Nickel8%
  6. Fluoride6%
  7. Aluminium6%
  8. Mercury4%
  9. Iron3%
  10. Turbidity3%
  11. Manganese2%
  12. Antimony2%
  13. Boron2%
  14. Nitrite2%
  15. Arsenic1%
  16. Selenium<1%
  17. Cadmium<1%
  18. Copper<1%
  19. Lead<1%
  20. Chromium<1%
  • Conductivity 333 µS/cm
  • Coliform Bacteria none found
  • E. coli none found
  • Phosphate 1.13 mg/L
All 25 results as a table
SubstanceResultLegal limitShare of limit
Turbidity0.11 NTU4 NTU
3%
Conductivity333 µS/cmNo legal limit–
Colour3 mg/L Pt/Co20 mg/L Pt/Co
15%
Aluminium0.0111 mg/L0.2 mg/L
6%
Iron0.00629 mg/L0.2 mg/L
3%
Manganese0.00101 mg/L0.05 mg/L
2%
Coliform Bacteria0 count/100mlMust be zeroNone found
E. coli0 count/100mlMust be zeroNone found
Bromate0.0008 mg/L0.01 mg/L
8%
Lead0.00002 mg/L0.01 mg/L
<1%
Nickel0.00154 mg/L0.02 mg/L
8%
Mercury0.00004 mg/L0.001 mg/L
4%
Trihalomethanes0.0119 mg/L0.1 mg/L
12%
Fluoride0.09 mg/L1.5 mg/L
6%
Selenium0.00025 mg/L0.04 mg/L
<1%
Copper0.00723 mg/L2 mg/L
<1%
Arsenic0.00011 mg/L0.01 mg/L
1%
Nitrite0.008 mg/L0.5 mg/L
2%
Nitrate8.88 mg/L50 mg/L
18%
Chromium0.00008 mg/L0.05 mg/L
<1%
Cadmium0.000021 mg/L0.005 mg/L
<1%
Boron0.0166 mg/L1 mg/L
2%
Antimony0.000095 mg/L0.005 mg/L
2%
Phosphate1.13 mg/LNo legal limit–
Hardness (as CaCO3)115 mg/LNo legal limit–

115mg of limescale minerals in every litre

Soft water. Kind to kettles, boilers and skin

You will not need a softener here, and you will use less soap and detergent than most of England.

Soft400 mg/L
Outside your tap

Your river is the Aire from Gill Beck (Baildon) to Wyke Beck, rated moderate

The Environment Agency rated the Aire from Gill Beck (Baildon) to Wyke Beck 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, insects and other small river life and specific pollutants. 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

38

forever-chemical detections in nearby rivers and groundwater

At 4 sites. The highest was PFOA at 0.043 µg/L, at Adel Beck at Adel Mill Bridge, 6.8 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

LS3 in short

Tap water in LS3 (Leeds) is supplied by Yorkshire Water in the Leeds Central zone and scores 9.6 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 20 August 2026.

  • 5th cleanest of 28 areas tested in LeedsOnly 4 areas in Leeds scored higher. The best is LS21 on 9.7. Every area in Leeds
  • 0.6 points above the national average of 9Cleaner than the typical tested district in the UK. Compare every area
  • PFAS found at 4 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFOA about 6.8 km away. What was measured

Next door

LS89.5 out of 10 · 157 mg/LLS29.5 out of 10 · 116 mg/LLS59.5 out of 10 · 137 mg/LLS19.5 out of 10 · 104 mg/LLS79.4 out of 10 · 141 mg/LLS69.5 out of 10 · 135 mg/LLS49.5 out of 10 · 129 mg/LBD119.6 out of 10 · 93 mg/LLS149.4 out of 10 · 146 mg/LLS99.5 out of 10 · 141 mg/L

Questions about LS3 water

Is LS3 tap water safe to drink?

Based on the latest tests, LS3 (Leeds) water scores 9.6/10, which is safe. 0 of 25 tested contaminants exceeded recommended levels. Water is supplied by Yorkshire Water.

What contaminants are in LS3 water?

We tested 25 contaminants in LS3 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 LS3?

LS3 (Leeds) is supplied by Yorkshire Water. You can view their full profile and compliance data on our supplier page.

Is LS3 water hard or soft?

Water in LS3 (Leeds) has a hardness of 115 mg/L CaCO3, which is classified as moderately soft. This is a moderate hardness level.

Should I use a water filter in LS3?

LS3 water scored 9.6/10 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 LS3 water?

The tap-water tests we hold for LS3 do not include a PFAS result. Environment Agency monitoring found PFAS in 38 river and groundwater samples from 4 sites within 10 km of LS3, the highest being PFOA at 0.043 µg/L about 6.8 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 LS3?

The Environment Agency rated the Aire from Gill Beck (Baildon) to Wyke Beck 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, insects and other small river life and specific pollutants. 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 LS3, 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 LS3

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
Turbidity41.9 NTU4 NTU
Manganese0.287 mg/L0.05 mg/L
Iron0.908 mg/L0.2 mg/L
pH8.26 pHNone
Temperature5.3 °CNone
Conductivity903 µS/cmNone
Ammonia0.12 mg/L0.5 mg/L
Nitrate2.6 mg/L50 mg/L
Phosphate0.038 mg/LNone
Nitrite0.022 mg/L0.5 mg/L
Dissolved Oxygen12.1 mg/LNone
Hardness (as CaCO3)232 mg/LNone
Lead0.000946 mg/L0.01 mg/L
Copper0.00471 mg/L2 mg/L
Zinc0.0141 mg/LNone

Get alerts for your area

We'll email you when water quality data changes for LS3.

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