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tapwater
England and Wales average 9.0

Tap water in LL27, ConwySafe to drink.

Supplied by Dŵr Cymru Welsh Water. 180 samples, 20 substances, latest on 18 December 2024. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.2 / 10

The tank is as full as the score.

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What's in a glass of LL27 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 56% of it. 16 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCadmium: 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%Arsenic: 0.00019 mg/L, 2% of the 0.01 mg/L limitArsenic2%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%Nitrate: 2.61 mg/L, 5% of the 50 mg/L limitNitrate5%Lead: 0.00062 mg/L, 6% of the 0.01 mg/L limitLead6%Turbidity: 0.27 NTU, 7% of the 4 NTU limitTurbidity7%Bromate: 0.00074 mg/L, 7% of the 0.01 mg/L limitBromate7%Nitrite: 0.056 mg/L, 11% of the 0.5 mg/L limitNitrite11%Copper: 0.25 mg/L, 13% of the 2 mg/L limitCopper13%Manganese: 0.0076 mg/L, 15% of the 0.05 mg/L limitManganese15%Iron: 0.034 mg/L, 17% of the 0.2 mg/L limitIron17%Aluminium: 0.044 mg/L, 22% of the 0.2 mg/L limitAluminium22%Colour: 4.6 mg/L Pt/Co, 23% of the 20 mg/L Pt/Co limitColour23%Trihalomethanes: 0.056 mg/L, 56% of the 0.1 mg/L limitTrihalomethanes56%
  1. Trihalomethanes56%
  2. Colour23%
  3. Aluminium22%
  4. Iron17%
  5. Manganese15%
  6. Copper13%
  7. Nitrite11%
  8. Bromate7%
  9. Turbidity7%
  10. Lead6%
  11. Nitrate5%
  12. Chromium3%
  13. Nickel3%
  14. Arsenic2%
  15. Selenium<1%
  16. Antimony<1%
  17. Cadmium<1%
  • Coliform Bacteria none found
  • E. coli none found
  • Conductivity 48 µS/cm
All 20 results as a table
SubstanceResultLegal limitShare of limit
Coliform Bacteria0 count/100mlMust be zeroNone found
E. coli0 count/100mlMust be zeroNone found
Bromate0.00074 mg/L0.01 mg/L
7%
Conductivity48 µS/cmNo legal limit–
Trihalomethanes0.056 mg/L0.1 mg/L
56%
Copper0.25 mg/L2 mg/L
13%
Cadmium0.000025 mg/L0.005 mg/L
<1%
Manganese0.0076 mg/L0.05 mg/L
15%
Chromium0.0015 mg/L0.05 mg/L
3%
Nickel0.00059 mg/L0.02 mg/L
3%
Arsenic0.00019 mg/L0.01 mg/L
2%
Iron0.034 mg/L0.2 mg/L
17%
Antimony0.000028 mg/L0.005 mg/L
<1%
Selenium0.00023 mg/L0.04 mg/L
<1%
Lead0.00062 mg/L0.01 mg/L
6%
Nitrite0.056 mg/L0.5 mg/L
11%
Turbidity0.27 NTU4 NTU
7%
Aluminium0.044 mg/L0.2 mg/L
22%
Nitrate2.61 mg/L50 mg/L
5%
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%

LL27 in short

Tap water in LL27 (Conwy) is supplied by Dŵr Cymru Welsh Water in the Conwy Central zone and scores 9.2 out of 10, against an England and Wales average of 9.0. None of the 20 tested substances came close to a limit. The latest sample is from 18 December 2024.

  • 10th cleanest of 12 areas tested in Conwy2 areas in Conwy scored lower. The best is LL32 on 9.7.
  • Trihalomethanes is the reading closest to its limit, at 56% 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 2 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

LL229.6 out of 10LL249.2 out of 10LL339.6 out of 10LL289.5 out of 10LL319.1 out of 10LL349.6 out of 10LL299.5 out of 10LL329.7 out of 10LL269.6 out of 10LL309.1 out of 10

Questions about LL27 water

Is LL27 tap water safe to drink?

Based on the latest tests, LL27 (Conwy) water scores 9.2/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.

What contaminants are in LL27 water?

We tested 20 contaminants in LL27 water. None exceeded recommended safe levels.

Who supplies water in LL27?

LL27 (Conwy) 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 LL27?

LL27 water scored 9.2/10 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 LL27 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for LL27, 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