Skip to main content
tapwater
England and Wales average 9.0

Tap water in LS27, LeedsSafe to drink.Moderately soft.

Supplied by Yorkshire Water. 1,635 samples, 25 substances, latest on 15 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

ZeroWater 12-Cup Ready-Pour

ZeroWater 12-Cup Ready-Pour

£40typical price

Households concerned about PFAS and heavy metals

Check price at Amazon (opens in new tab)
Waterdrop 10UA Under Sink

Waterdrop 10UA Under Sink

£70typical price

High-volume under-sink filtration without RO complexity

Check price at Waterdrop (opens in new tab)
BRITA Marella XL + MAXTRA PRO

BRITA Marella XL + MAXTRA PRO

£25typical price

Basic chlorine and taste improvement on a budget

Check price at Amazon (opens in new tab)

We earn a commission if you buy through these links, at no extra cost to you. It never changes which product we put first. How we make money

What's in a glass of LS27 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 53% of it. 19 of 20 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitNitrite: 0 mg/L, 0% of the 0.5 mg/L limitNitrite0%Copper: 0.00641 mg/L, <1% of the 2 mg/L limitCopper<1%Chromium: 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%Boron: 0.0092 mg/L, <1% of the 1 mg/L limitBoron<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%Manganese: 0.00101 mg/L, 2% of the 0.05 mg/L limitManganese2%Antimony: 0.000125 mg/L, 3% of the 0.005 mg/L limitAntimony3%Turbidity: 0.11 NTU, 3% of the 4 NTU limitTurbidity3%Nickel: 0.00059 mg/L, 3% of the 0.02 mg/L limitNickel3%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%Fluoride: 0.09 mg/L, 6% of the 1.5 mg/L limitFluoride6%Lead: 0.00064 mg/L, 6% of the 0.01 mg/L limitLead6%Bromate: 0.0007 mg/L, 7% of the 0.01 mg/L limitBromate7%Nitrate: 3.73 mg/L, 7% of the 50 mg/L limitNitrate7%Aluminium: 0.0161 mg/L, 8% of the 0.2 mg/L limitAluminium8%Colour: 3 mg/L Pt/Co, 15% of the 20 mg/L Pt/Co limitColour15%Trihalomethanes: 0.0534 mg/L, 53% of the 0.1 mg/L limitTrihalomethanes53%
  1. Trihalomethanes53%
  2. Colour15%
  3. Aluminium8%
  4. Nitrate7%
  5. Bromate7%
  6. Lead6%
  7. Fluoride6%
  8. Mercury4%
  9. Iron3%
  10. Nickel3%
  11. Turbidity3%
  12. Antimony3%
  13. Manganese2%
  14. Arsenic1%
  15. Selenium1%
  16. Boron<1%
  17. Cadmium<1%
  18. Chromium<1%
  19. Copper<1%
  20. Nitrite0%
  • Conductivity 178 µS/cm
  • Coliform Bacteria none found
  • E. coli none found
  • Phosphate 1.09 mg/L
All 25 results as a table
SubstanceResultLegal limitShare of limit
Aluminium0.0161 mg/L0.2 mg/L
8%
Iron0.00629 mg/L0.2 mg/L
3%
Manganese0.00101 mg/L0.05 mg/L
2%
Turbidity0.11 NTU4 NTU
3%
Conductivity178 µS/cmNo legal limit–
Colour3 mg/L Pt/Co20 mg/L Pt/Co
15%
Coliform Bacteria0 count/100mlMust be zeroNone found
E. coli0 count/100mlMust be zeroNone found
Phosphate1.09 mg/LNo legal limit–
Bromate0.0007 mg/L0.01 mg/L
7%
Antimony0.000125 mg/L0.005 mg/L
3%
Trihalomethanes0.0534 mg/L0.1 mg/L
53%
Nitrite0 mg/L0.5 mg/L
<1%
Nitrate3.73 mg/L50 mg/L
7%
Copper0.00641 mg/L2 mg/L
<1%
Fluoride0.09 mg/L1.5 mg/L
6%
Boron0.0092 mg/L1 mg/L
<1%
Nickel0.00059 mg/L0.02 mg/L
3%
Chromium0.00019 mg/L0.05 mg/L
<1%
Lead0.00064 mg/L0.01 mg/L
6%
Cadmium0.000031 mg/L0.005 mg/L
<1%
Selenium0.00043 mg/L0.04 mg/L
1%
Arsenic0.00015 mg/L0.01 mg/L
1%
Mercury0.00004 mg/L0.001 mg/L
4%
Hardness (as CaCO3)71.7 mg/LNo legal limit–

81mg 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 Milshaw Beck from Source to Low/Wortley/Pudsey Bks, rated moderate

The Environment Agency rated the Milshaw Beck from Source to Low/Wortley/Pudsey Bks as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by ammonia and insects and other small river life. 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

70

forever-chemical detections in nearby rivers and groundwater

At 4 sites. The highest was PFBS at 0.047 µg/L, at SSN1573 Ossett Dike Trib of Lupset Beck, 9.6 km away, in December 2025. These are river and borehole samples, not tests of your tap water.

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

LS27 in short

Tap water in LS27 (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 15 September 2026.

  • Trihalomethanes is the reading closest to its limit, at 53% of the 0.1 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 13th cleanest of 28 areas tested in LeedsSquarely mid-table for Leeds, between LS21 on 9.7 and LS25 on 9.1. Every area in Leeds
  • PFAS found at 4 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFBS about 9.6 km away. What was measured

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/LLS169.6 out of 10 · 140 mg/L

Questions about LS27 water

Is LS27 tap water safe to drink?

Based on the latest tests, LS27 (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 LS27 water?

We tested 25 contaminants in LS27 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 LS27?

LS27 (Leeds) is supplied by Yorkshire Water. You can view their full profile and compliance data on our supplier page.

Is LS27 water hard or soft?

Water in LS27 (Leeds) has a hardness of 81 mg/L CaCO3, which is classified as moderately soft. This is a moderate hardness level.

Should I use a water filter in LS27?

LS27 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 LS27 water?

The tap-water tests we hold for LS27 do not include a PFAS result. Environment Agency monitoring found PFAS in 70 river and groundwater samples from 4 sites within 10 km of LS27, the highest being PFBS at 0.047 µg/L about 9.6 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 LS27?

The Environment Agency rated the Milshaw Beck from Source to Low/Wortley/Pudsey Bks as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by ammonia and insects and other small river life. 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 LS27, 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 LS27

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
Manganese0.287 mg/L0.05 mg/L
Iron0.908 mg/L0.2 mg/L
pH7.98 pHNone
Temperature13.9 °CNone
Conductivity1000 µS/cmNone
Nitrate5.4 mg/L50 mg/L
Nitrite0.03 mg/L0.5 mg/L
Phosphate0.081 mg/LNone
Dissolved Oxygen9.16 mg/LNone
Ammonia0.044 mg/L0.5 mg/L
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 LS27.

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