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tapwater
England and Wales average 9.0

Tap water in HX5, CalderdaleSafe to drink.Soft.

Supplied by Yorkshire Water. 797 samples, 25 substances, latest on 18 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 HX5 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 50% of it. 19 of 20 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCopper: 0.00266 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%Lead: 0.00009 mg/L, <1% of the 0.01 mg/L limitLead<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%Nitrite: 0.008 mg/L, 2% of the 0.5 mg/L limitNitrite2%Arsenic: 0.00017 mg/L, 2% of the 0.01 mg/L limitArsenic2%Antimony: 0.000087 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%Fluoride: 0.05 mg/L, 3% of the 1.5 mg/L limitFluoride3%Mercury: 0.00004 mg/L, 4% of the 0.001 mg/L limitMercury4%Nickel: 0.00096 mg/L, 5% of the 0.02 mg/L limitNickel5%Aluminium: 0.0111 mg/L, 6% of the 0.2 mg/L limitAluminium6%Bromate: 0.0006 mg/L, 6% of the 0.01 mg/L limitBromate6%Nitrate: 3.73 mg/L, 7% of the 50 mg/L limitNitrate7%Iron: 0.0184 mg/L, 9% of the 0.2 mg/L limitIron9%Colour: 3 mg/L Pt/Co, 15% of the 20 mg/L Pt/Co limitColour15%Trihalomethanes: 0.0501 mg/L, 50% of the 0.1 mg/L limitTrihalomethanes50%
  1. Trihalomethanes50%
  2. Colour15%
  3. Iron9%
  4. Nitrate7%
  5. Bromate6%
  6. Aluminium6%
  7. Nickel5%
  8. Mercury4%
  9. Fluoride3%
  10. Turbidity3%
  11. Manganese2%
  12. Antimony2%
  13. Arsenic2%
  14. Nitrite2%
  15. Selenium1%
  16. Boron<1%
  17. Lead<1%
  18. Cadmium<1%
  19. Chromium<1%
  20. Copper<1%
  • E. coli none found
  • Coliform Bacteria none found
  • Conductivity 163 µS/cm
  • Phosphate 1.01 mg/L
All 25 results as a table
SubstanceResultLegal limitShare of limit
E. coli0 count/100mlMust be zeroNone found
Coliform Bacteria0 count/100mlMust be zeroNone found
Boron0.0092 mg/L1 mg/L
<1%
Cadmium0.000031 mg/L0.005 mg/L
<1%
Nickel0.00096 mg/L0.02 mg/L
5%
Chromium0.00019 mg/L0.05 mg/L
<1%
Selenium0.00043 mg/L0.04 mg/L
1%
Copper0.00266 mg/L2 mg/L
<1%
Arsenic0.00017 mg/L0.01 mg/L
2%
Antimony0.000087 mg/L0.005 mg/L
2%
Bromate0.0006 mg/L0.01 mg/L
6%
Colour3 mg/L Pt/Co20 mg/L Pt/Co
15%
Turbidity0.11 NTU4 NTU
3%
Conductivity163 µS/cmNo legal limit–
Fluoride0.05 mg/L1.5 mg/L
3%
Mercury0.00004 mg/L0.001 mg/L
4%
Aluminium0.0111 mg/L0.2 mg/L
6%
Iron0.0184 mg/L0.2 mg/L
9%
Manganese0.00101 mg/L0.05 mg/L
2%
Trihalomethanes0.0501 mg/L0.1 mg/L
50%
Nitrite0.008 mg/L0.5 mg/L
2%
Nitrate3.73 mg/L50 mg/L
7%
Lead0.00009 mg/L0.01 mg/L
<1%
Phosphate1.01 mg/LNo legal limit–
Hardness (as CaCO3)39.7 mg/LNo legal limit–

42mg 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 Calder from Ryburn Confluence to River Colne, rated moderate

The Environment Agency rated the Calder from Ryburn Confluence to River Colne as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by insects and other small river life, water plants and algae and ammonia. 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

84

forever-chemical detections in nearby rivers and groundwater

At 5 sites. The highest was PFPeA at 0.24 µg/L, at Bradford Rd, Bailiff Bridge 2/27/12/098, 5.4 km away, in June 2025. These are river and borehole samples, not tests of your tap water.

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

HX5 in short

Tap water in HX5 (Calderdale) is supplied by Yorkshire Water in the Calderdale 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 18 September 2026.

  • Trihalomethanes is the reading closest to its limit, at 50% of the 0.1 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 6th cleanest of 9 areas tested in CalderdaleSquarely mid-table for Calderdale, between HX6 on 9.6 and HX3 on 9.3.
  • Soft water at 42 mg/LLimescale is not a problem in HX5, so skip softeners and scale filters entirely. How hardness is measured

Next door

HX69.6 out of 10 · 33 mg/LHX79.6 out of 10 · 36 mg/LHX29.3 out of 10 · 61 mg/LHX39.3 out of 10 · 66 mg/LHX19.3 out of 10 · 51 mg/LHX49.5 out of 10 · 32 mg/LHD69.5 out of 10 · 40 mg/LOL149.6 out of 10 · 37 mg/LHD19.6 out of 10 · 44 mg/L

Questions about HX5 water

Is HX5 tap water safe to drink?

Based on the latest tests, HX5 (Calderdale) 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 HX5 water?

We tested 25 contaminants in HX5 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 HX5?

HX5 (Calderdale) is supplied by Yorkshire Water. You can view their full profile and compliance data on our supplier page.

Is HX5 water hard or soft?

Water in HX5 (Calderdale) has a hardness of 42 mg/L CaCO3, which is classified as soft. Soft water is gentle on appliances and skin.

Should I use a water filter in HX5?

HX5 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 HX5 water?

The tap-water tests we hold for HX5 do not include a PFAS result. Environment Agency monitoring found PFAS in 84 river and groundwater samples from 5 sites within 10 km of HX5, the highest being PFPeA at 0.24 µg/L about 5.4 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 HX5?

The Environment Agency rated the Calder from Ryburn Confluence to River Colne as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by insects and other small river life, water plants and algae and ammonia. 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 HX5, which is treated before it reaches homes.

Keep reading

PFAS explainedHow to test your waterBest water filtersFilter shower headsWater testing kitsUK water rankingsWater hardness checkerWater hardness map

River and groundwater readings near HX5

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
pH8.18 pHNone
Temperature9.1 °CNone
Conductivity358 µS/cmNone
Nitrate1.4 mg/L50 mg/L
Nitrite0.0067 mg/L0.5 mg/L
Dissolved Oxygen12.1 mg/LNone
Ammonia0.32 mg/L0.5 mg/L
Phosphate0.42 mg/LNone

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We'll email you when water quality data changes for HX5.

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