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tapwater
England and Wales average 9.0

Tap water in HX3, CalderdaleSafe to drink.Moderately soft.

Supplied by Yorkshire Water. 1,463 samples, 25 substances, latest on 23 September 2026. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.3 / 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 HX3 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 54% of it. 18 of 20 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCopper: 0.00099 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: 0.0088 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%Manganese: 0.00101 mg/L, 2% of the 0.05 mg/L limitManganese2%Nickel: 0.00042 mg/L, 2% of the 0.02 mg/L limitNickel2%Fluoride: 0.04 mg/L, 3% of the 1.5 mg/L limitFluoride3%Antimony: 0.000139 mg/L, 3% of the 0.005 mg/L limitAntimony3%Iron: 0.00677 mg/L, 3% of the 0.2 mg/L limitIron3%Mercury: 0.00004 mg/L, 4% of the 0.001 mg/L limitMercury4%Bromate: 0.0004 mg/L, 4% of the 0.01 mg/L limitBromate4%Aluminium: 0.0111 mg/L, 6% of the 0.2 mg/L limitAluminium6%Nitrate: 3.73 mg/L, 7% of the 50 mg/L limitNitrate7%Turbidity: 0.3 NTU, 8% of the 4 NTU limitTurbidity8%Colour: 3 mg/L Pt/Co, 15% of the 20 mg/L Pt/Co limitColour15%Lead: 0.0034 mg/L, 34% of the 0.01 mg/L limitLead34%Trihalomethanes: 0.0543 mg/L, 54% of the 0.1 mg/L limitTrihalomethanes54%
  1. Trihalomethanes54%
  2. Lead34%
  3. Colour15%
  4. Turbidity8%
  5. Nitrate7%
  6. Aluminium6%
  7. Mercury4%
  8. Bromate4%
  9. Iron3%
  10. Antimony3%
  11. Fluoride3%
  12. Nickel2%
  13. Manganese2%
  14. Arsenic2%
  15. Nitrite2%
  16. Selenium1%
  17. Boron<1%
  18. Cadmium<1%
  19. Chromium<1%
  20. Copper<1%
  • Coliform Bacteria none found
  • E. coli none found
  • Conductivity 125 µS/cm
  • Phosphate 0.692 mg/L
All 25 results as a table
SubstanceResultLegal limitShare of limit
Coliform Bacteria0 count/100mlMust be zeroNone found
E. coli0 count/100mlMust be zeroNone found
Aluminium0.0111 mg/L0.2 mg/L
6%
Iron0.00677 mg/L0.2 mg/L
3%
Manganese0.00101 mg/L0.05 mg/L
2%
Turbidity0.3 NTU4 NTU
8%
Conductivity125 µS/cmNo legal limit–
Colour3 mg/L Pt/Co20 mg/L Pt/Co
15%
Phosphate0.692 mg/LNo legal limit–
Lead0.0034 mg/L0.01 mg/L
34%
Selenium0.00043 mg/L0.04 mg/L
1%
Arsenic0.00017 mg/L0.01 mg/L
2%
Antimony0.000139 mg/L0.005 mg/L
3%
Fluoride0.04 mg/L1.5 mg/L
3%
Mercury0.00004 mg/L0.001 mg/L
4%
Nitrite0.008 mg/L0.5 mg/L
2%
Nitrate3.73 mg/L50 mg/L
7%
Trihalomethanes0.0543 mg/L0.1 mg/L
54%
Nickel0.00042 mg/L0.02 mg/L
2%
Chromium0.00019 mg/L0.05 mg/L
<1%
Cadmium0.000031 mg/L0.005 mg/L
<1%
Boron0.0088 mg/L1 mg/L
<1%
Bromate0.0004 mg/L0.01 mg/L
4%
Copper0.00099 mg/L2 mg/L
<1%
Hardness (as CaCO3)91.9 mg/LNo legal limit–

66mg 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 Red Beck, Source to Calder and Hebble Navigation, rated poor

The Environment Agency rated the Red Beck, Source to Calder and Hebble Navigation as poor for ecological health in its 2025 assessment, meaning the river is badly affected, with much of the expected wildlife missing. It is held back by fish. 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

123

forever-chemical detections in nearby rivers and groundwater

At 6 sites. The highest was PFPeA at 0.24 µg/L, at Bradford Rd, Bailiff Bridge 2/27/12/098, 4.5 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

HX3 in short

Tap water in HX3 (Calderdale) is supplied by Yorkshire Water in the Calderdale Central zone and scores 9.3 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 23 September 2026.

  • The lowest score of the 9 areas tested in CalderdaleHX3 scores 9.3 out of 10. The best in Calderdale, HX6, scores 9.6.
  • Trihalomethanes is the reading closest to its limit, at 54% of the 0.1 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • PFAS found at 6 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFPeA about 4.5 km away. What was measured

Next door

HX69.6 out of 10 · 33 mg/LHX79.6 out of 10 · 36 mg/LHX29.3 out of 10 · 61 mg/LHD69.5 out of 10 · 40 mg/LHX19.3 out of 10 · 51 mg/LHX49.5 out of 10 · 32 mg/LHX59.5 out of 10 · 42 mg/LOL149.6 out of 10 · 37 mg/L

Questions about HX3 water

Is HX3 tap water safe to drink?

Based on the latest tests, HX3 (Calderdale) water scores 9.3/10, which is safe. 0 of 25 tested contaminants exceeded recommended levels. Water is supplied by Yorkshire Water.

What contaminants are in HX3 water?

We tested 25 contaminants in HX3 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 HX3?

HX3 (Calderdale) is supplied by Yorkshire Water. You can view their full profile and compliance data on our supplier page.

Is HX3 water hard or soft?

Water in HX3 (Calderdale) has a hardness of 66 mg/L CaCO3, which is classified as moderately soft. This is a moderate hardness level.

Should I use a water filter in HX3?

HX3 water scored 9.3/10 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 HX3 water?

The tap-water tests we hold for HX3 do not include a PFAS result. Environment Agency monitoring found PFAS in 123 river and groundwater samples from 6 sites within 10 km of HX3, the highest being PFPeA at 0.24 µg/L about 4.5 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 HX3?

The Environment Agency rated the Red Beck, Source to Calder and Hebble Navigation as poor for ecological health in its 2025 assessment, meaning the river is badly affected, with much of the expected wildlife missing. It is held back by fish. 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 HX3, 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 HX3

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 HX3.

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