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tapwater
England and Wales average 9.0

Tap water in LL70, Isle of AngleseySafe to drink.

Supplied by Dŵr Cymru Welsh Water. 379 samples, 23 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.

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What's in a glass of LL70 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 limitBromate: 3.1e-7 mg/L, <1% of the 0.01 mg/L limitBromate<1%Cadmium: 0.000025 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Selenium: 0.00023 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Antimony: 0.000059 mg/L, 1% of the 0.005 mg/L limitAntimony1%Lead: 0.00016 mg/L, 2% of the 0.01 mg/L limitLead2%Manganese: 0.00089 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%Chromium: 0.0015 mg/L, 3% of the 0.05 mg/L limitChromium3%Mercury: 0.000042 mg/L, 4% of the 0.001 mg/L limitMercury4%Arsenic: 0.00044 mg/L, 4% of the 0.01 mg/L limitArsenic4%Iron: 0.0088 mg/L, 4% of the 0.2 mg/L limitIron4%Nitrate: 2.61 mg/L, 5% of the 50 mg/L limitNitrate5%Turbidity: 0.27 NTU, 7% of the 4 NTU limitTurbidity7%Fluoride: 0.11 mg/L, 7% of the 1.5 mg/L limitFluoride7%Aluminium: 0.015 mg/L, 8% of the 0.2 mg/L limitAluminium8%Nitrite: 0.056 mg/L, 11% of the 0.5 mg/L limitNitrite11%Colour: 4.6 mg/L Pt/Co, 23% of the 20 mg/L Pt/Co limitColour23%Trihalomethanes: 0.05 mg/L, 50% of the 0.1 mg/L limitTrihalomethanes50%
  1. Trihalomethanes50%
  2. Colour23%
  3. Nitrite11%
  4. Aluminium8%
  5. Fluoride7%
  6. Turbidity7%
  7. Nitrate5%
  8. Arsenic4%
  9. Iron4%
  10. Mercury4%
  11. Chromium3%
  12. Nickel3%
  13. Copper3%
  14. Boron3%
  15. Manganese2%
  16. Lead2%
  17. Antimony1%
  18. Selenium<1%
  19. Cadmium<1%
  20. Bromate<1%
  • Conductivity 290 µS/cm
  • E. coli none found
  • Coliform Bacteria none found
All 23 results as a table
SubstanceResultLegal limitShare of limit
Bromate3.1e-7 mg/L0.01 mg/L
<1%
Trihalomethanes0.05 mg/L0.1 mg/L
50%
Boron0.028 mg/L1 mg/L
3%
Conductivity290 µS/cmNo legal limit–
E. coli0 count/100mlMust be zeroNone found
Coliform Bacteria0 count/100mlMust be zeroNone found
Antimony0.000059 mg/L0.005 mg/L
1%
Lead0.00016 mg/L0.01 mg/L
2%
Selenium0.00023 mg/L0.04 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%
Arsenic0.00044 mg/L0.01 mg/L
4%
Copper0.058 mg/L2 mg/L
3%
Manganese0.00089 mg/L0.05 mg/L
2%
Chromium0.0015 mg/L0.05 mg/L
3%
Fluoride0.11 mg/L1.5 mg/L
7%
Nitrite0.056 mg/L0.5 mg/L
11%
Aluminium0.015 mg/L0.2 mg/L
8%
Iron0.0088 mg/L0.2 mg/L
4%
Nitrate2.61 mg/L50 mg/L
5%
Turbidity0.27 NTU4 NTU
7%
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%

LL70 in short

Tap water in LL70 (Isle of Anglesey) is supplied by Dŵr Cymru Welsh Water in the Isle of Anglesey Central zone and scores 9.4 out of 10, against an England and Wales average of 9.0. None of the 23 tested substances came close to a limit. The latest sample is from 12 December 2024.

  • 17th cleanest of 21 areas tested in Isle of Anglesey4 areas in Isle of Anglesey scored lower. The best is LL58 on 9.6.
  • 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
  • Scores higher than 1 of 10 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.

Next door

LL749.6 out of 10LL589.6 out of 10LL619.6 out of 10LL679.3 out of 10LL769.4 out of 10LL649.6 out of 10LL789.4 out of 10LL729.6 out of 10LL659.4 out of 10LL689.4 out of 10

Questions about LL70 water

Is LL70 tap water safe to drink?

Based on the latest tests, LL70 (Isle of Anglesey) water scores 9.4/10, which is safe. 0 of 23 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.

What contaminants are in LL70 water?

We tested 23 contaminants in LL70 water. None exceeded recommended safe levels.

Who supplies water in LL70?

LL70 (Isle of Anglesey) 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 LL70?

LL70 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 LL70 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for LL70, 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