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tapwater
England and Wales average 9.0

Tap water in LL17, DenbighshireSafe to drink.

Supplied by Dŵr Cymru Welsh Water. 333 samples, 22 substances, latest on 12 December 2024. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.4 / 10

The tank is as full as the score.

What to do about it

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What's in a glass of LL17 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.

Nitrite came closest to a limit, at 34% of it. 18 of 19 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitChromium: 0.00014 mg/L, <1% of the 0.05 mg/L limitChromium<1%Cadmium: 0.000025 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Antimony: 0.000028 mg/L, <1% of the 0.005 mg/L limitAntimony<1%Selenium: 0.00023 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Lead: 0.00016 mg/L, 2% of the 0.01 mg/L limitLead2%Manganese: 0.0011 mg/L, 2% of the 0.05 mg/L limitManganese2%Boron: 0.028 mg/L, 3% of the 1 mg/L limitBoron3%Copper: 0.058 mg/L, 3% of the 2 mg/L limitCopper3%Nickel: 0.00059 mg/L, 3% of the 0.02 mg/L limitNickel3%Arsenic: 0.00031 mg/L, 3% of the 0.01 mg/L limitArsenic3%Mercury: 0.000042 mg/L, 4% of the 0.001 mg/L limitMercury4%Turbidity: 0.27 NTU, 7% of the 4 NTU limitTurbidity7%Fluoride: 0.11 mg/L, 7% of the 1.5 mg/L limitFluoride7%Iron: 0.015 mg/L, 8% of the 0.2 mg/L limitIron8%Nitrate: 8.19 mg/L, 16% of the 50 mg/L limitNitrate16%Aluminium: 0.039 mg/L, 19% of the 0.2 mg/L limitAluminium19%Trihalomethanes: 0.02 mg/L, 20% of the 0.1 mg/L limitTrihalomethanes20%Colour: 4.6 mg/L Pt/Co, 23% of the 20 mg/L Pt/Co limitColour23%Nitrite: 0.17 mg/L, 34% of the 0.5 mg/L limitNitrite34%
  1. Nitrite34%
  2. Colour23%
  3. Trihalomethanes20%
  4. Aluminium19%
  5. Nitrate16%
  6. Iron8%
  7. Fluoride7%
  8. Turbidity7%
  9. Mercury4%
  10. Arsenic3%
  11. Nickel3%
  12. Copper3%
  13. Boron3%
  14. Manganese2%
  15. Lead2%
  16. Selenium<1%
  17. Antimony<1%
  18. Cadmium<1%
  19. Chromium<1%
  • E. coli none found
  • Coliform Bacteria none found
  • Conductivity 170 µS/cm
All 22 results as a table
SubstanceResultLegal limitShare of limit
E. coli0 count/100mlMust be zeroNone found
Coliform Bacteria0 count/100mlMust be zeroNone found
Conductivity170 µS/cmNo legal limit–
Iron0.015 mg/L0.2 mg/L
8%
Aluminium0.039 mg/L0.2 mg/L
19%
Manganese0.0011 mg/L0.05 mg/L
2%
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%
Turbidity0.27 NTU4 NTU
7%
Trihalomethanes0.02 mg/L0.1 mg/L
20%
Boron0.028 mg/L1 mg/L
3%
Antimony0.000028 mg/L0.005 mg/L
<1%
Nickel0.00059 mg/L0.02 mg/L
3%
Mercury0.000042 mg/L0.001 mg/L
4%
Cadmium0.000025 mg/L0.005 mg/L
<1%
Selenium0.00023 mg/L0.04 mg/L
<1%
Lead0.00016 mg/L0.01 mg/L
2%
Chromium0.00014 mg/L0.05 mg/L
<1%
Fluoride0.11 mg/L1.5 mg/L
7%
Arsenic0.00031 mg/L0.01 mg/L
3%
Copper0.058 mg/L2 mg/L
3%
Nitrite0.17 mg/L0.5 mg/L
34%
Nitrate8.19 mg/L50 mg/L
16%

LL17 in short

Tap water in LL17 (Denbighshire) is supplied by Dŵr Cymru Welsh Water in the Denbighshire Central zone and scores 9.4 out of 10, against an England and Wales average of 9.0. None of the 22 tested substances came close to a limit. The latest sample is from 12 December 2024.

  • 3rd cleanest of 7 areas tested in DenbighshireOnly 2 areas in Denbighshire scored higher. The best is LL19 on 9.5.
  • Nothing tested came within 40% of its legal limitThe highest was Nitrite at 34% of the 0.5 mg/L maximum. See every reading
  • Scores higher than 3 of 6 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.

Next door

LL159.3 out of 10LL169.1 out of 10LL189.0 out of 10LL199.5 out of 10LL209.5 out of 10LL219.4 out of 10

Questions about LL17 water

Is LL17 tap water safe to drink?

Based on the latest tests, LL17 (Denbighshire) water scores 9.4/10, which is safe. 0 of 22 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.

What contaminants are in LL17 water?

We tested 22 contaminants in LL17 water. None exceeded recommended safe levels.

Who supplies water in LL17?

LL17 (Denbighshire) is supplied by Dŵr Cymru Welsh Water. You can view their full profile and compliance data on our supplier page.

Should I use a water filter in LL17?

LL17 water scored 9.4/10 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 LL17 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for LL17, 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.

Keep reading

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Source: Dŵr Cymru Welsh 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