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tapwater
England and Wales average 9.0

Tap water in BD23, North YorkshireSafe to drink.Soft.

Supplied by Yorkshire Water. 630 samples, 22 substances, latest on 17 September 2026. Everything is inside the legal limit. One result, iron, sits close to the line.

See the filter we recommendSee everything that was tested

9.1 / 10

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

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What's in a glass of BD23 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.

Iron came closest to a limit, at 90% of it. 14 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCopper: 0.00117 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%Antimony: 0.00004 mg/L, <1% of the 0.005 mg/L limitAntimony<1%Lead: 0.00009 mg/L, <1% of the 0.01 mg/L limitLead<1%Selenium: 0.00043 mg/L, 1% of the 0.04 mg/L limitSelenium1%Arsenic: 0.00011 mg/L, 1% of the 0.01 mg/L limitArsenic1%Bromate: 0.0004 mg/L, 4% of the 0.01 mg/L limitBromate4%Turbidity: 0.21 NTU, 5% of the 4 NTU limitTurbidity5%Manganese: 0.00277 mg/L, 6% of the 0.05 mg/L limitManganese6%Aluminium: 0.0111 mg/L, 6% of the 0.2 mg/L limitAluminium6%Nickel: 0.00137 mg/L, 7% of the 0.02 mg/L limitNickel7%Nitrate: 3.73 mg/L, 7% of the 50 mg/L limitNitrate7%Colour: 3 mg/L Pt/Co, 15% of the 20 mg/L Pt/Co limitColour15%Trihalomethanes: 0.0342 mg/L, 34% of the 0.1 mg/L limitTrihalomethanes34%Nitrite: 0.279 mg/L, 56% of the 0.5 mg/L limitNitrite56%Iron: 0.18 mg/L, 90% of the 0.2 mg/L limitIron90%
  1. Iron90%
  2. Nitrite56%
  3. Trihalomethanes34%
  4. Colour15%
  5. Nitrate7%
  6. Nickel7%
  7. Aluminium6%
  8. Manganese6%
  9. Turbidity5%
  10. Bromate4%
  11. Arsenic1%
  12. Selenium1%
  13. Lead<1%
  14. Antimony<1%
  15. Cadmium<1%
  16. Chromium<1%
  17. Copper<1%
  • E. coli none found
  • Conductivity 131 µS/cm
  • Coliform Bacteria none found
  • Phosphate 1.04 mg/L
All 22 results as a table
SubstanceResultLegal limitShare of limit
Iron0.18 mg/L0.2 mg/L
90%
E. coli0 count/100mlMust be zeroNone found
Nitrite0.279 mg/L0.5 mg/L
56%
Nitrate3.73 mg/L50 mg/L
7%
Manganese0.00277 mg/L0.05 mg/L
6%
Colour3 mg/L Pt/Co20 mg/L Pt/Co
15%
Conductivity131 µS/cmNo legal limit–
Aluminium0.0111 mg/L0.2 mg/L
6%
Turbidity0.21 NTU4 NTU
5%
Coliform Bacteria0 count/100mlMust be zeroNone found
Phosphate1.04 mg/LNo legal limit–
Arsenic0.00011 mg/L0.01 mg/L
1%
Antimony0.00004 mg/L0.005 mg/L
<1%
Selenium0.00043 mg/L0.04 mg/L
1%
Cadmium0.000031 mg/L0.005 mg/L
<1%
Chromium0.00019 mg/L0.05 mg/L
<1%
Nickel0.00137 mg/L0.02 mg/L
7%
Copper0.00117 mg/L2 mg/L
<1%
Trihalomethanes0.0342 mg/L0.1 mg/L
34%
Bromate0.0004 mg/L0.01 mg/L
4%
Lead0.00009 mg/L0.01 mg/L
<1%
Hardness (as CaCO3)17.3 mg/LNo legal limit–

17mg 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 Eller Beck from Source to Haw Beck, rated good

The Environment Agency rated the Eller Beck from Source to Haw Beck as good for ecological health in its 2025 assessment, meaning the river is only slightly changed from its natural state. 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. Its ecological rating has improved since the previous assessment.

None of this is a test of your tap water. Environment Agency record · River health across England

BD23 in short

Tap water in BD23 (North Yorkshire) is supplied by Yorkshire Water in the North Yorkshire Central zone and scores 9.1 out of 10, against an England and Wales average of 9.0. 1 of 22 tested substances was close to or over a limit. The latest sample is from 17 September 2026.

  • Iron is within its legal limit but flagged, at 90% of the 0.2 mg/L maximumAnything over three quarters of a limit is flagged here as worth watching. It has not gone over. See every reading
  • 21st cleanest of 28 areas tested in North Yorkshire7 areas in North Yorkshire scored lower. The best is BD24 on 9.7.
  • Soft water at 17 mg/LLimescale is not a problem in BD23, so skip softeners and scale filters entirely. How hardness is measured

Next door

YO79.5 out of 10 · 250 mg/LHG19.5 out of 10 · 49 mg/LDL78.9 out of 10 · 258 mg/LDL68.9 out of 10 · 249 mg/LYO88.8 out of 10 · 277 mg/LYO119.4 out of 10 · 198 mg/LYO129.4 out of 10 · 199 mg/LYO139.2 out of 10 · 196 mg/LYO149.4 out of 10 · 238 mg/LDL89.6 out of 10 · 117 mg/L

Questions about BD23 water

Is BD23 tap water safe to drink?

Based on the latest tests, BD23 (North Yorkshire) water scores 9.1/10, which is safe. 1 of 22 tested contaminants exceeded recommended levels. Water is supplied by Yorkshire Water.

What contaminants are in BD23 water?

We tested 22 contaminants in BD23 water. 1 were flagged, including Iron.

Who supplies water in BD23?

BD23 (North Yorkshire) is supplied by Yorkshire Water. You can view their full profile and compliance data on our supplier page.

Is BD23 water hard or soft?

Water in BD23 (North Yorkshire) has a hardness of 17 mg/L CaCO3, which is classified as soft. Soft water is gentle on appliances and skin.

Should I use a water filter in BD23?

With 1 contaminant above recommended levels in BD23, a water filter could help. A filter jug or under-sink filter can reduce most common contaminants. See our filter recommendations for your area.

Are there PFAS forever chemicals in BD23 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for BD23, and the Environment Agency has no PFAS detections in rivers or groundwater within 10 km of it. That reflects where sampling has happened as much as the water itself.

How clean is the river near BD23?

The Environment Agency rated the Eller Beck from Source to Haw Beck as good for ecological health in its 2025 assessment, meaning the river is only slightly changed from its natural state. 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. Its ecological rating has improved since the previous assessment. This is a rating of the river, not of tap water in BD23, which is treated before it reaches homes.

Keep reading

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

River and groundwater readings near BD23

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
pH8.47 pHNone
Temperature9.4 °CNone
Conductivity461 µS/cmNone
Nitrate2 mg/L50 mg/L
Dissolved Oxygen11 mg/LNone
Ammonia0.031 mg/L0.5 mg/L
Phosphate0.028 mg/LNone
Nitrite0.0063 mg/L0.5 mg/L
Hardness (as CaCO3)170 mg/LNone
Copper0.0011 mg/L2 mg/L

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We'll email you when water quality data changes for BD23.

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