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tapwater
England and Wales average 9.0

Tap water in NP18, NewportSafe to drink.

Supplied by Dŵr Cymru Welsh Water. 677 samples, 23 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 NP18 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 43% of it. 17 of 20 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitChromium: 0.000092 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%Selenium: 0.00023 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Antimony: 0.000037 mg/L, <1% of the 0.005 mg/L limitAntimony<1%Arsenic: 0.00011 mg/L, 1% of the 0.01 mg/L limitArsenic1%Lead: 0.00016 mg/L, 2% of the 0.01 mg/L limitLead2%Aluminium: 0.005 mg/L, 3% of the 0.2 mg/L limitAluminium3%Manganese: 0.0013 mg/L, 3% of the 0.05 mg/L limitManganese3%Boron: 0.028 mg/L, 3% of the 1 mg/L limitBoron3%Mercury: 0.000042 mg/L, 4% of the 0.001 mg/L limitMercury4%Bromate: 0.00052 mg/L, 5% of the 0.01 mg/L limitBromate5%Turbidity: 0.27 NTU, 7% of the 4 NTU limitTurbidity7%Copper: 0.14 mg/L, 7% of the 2 mg/L limitCopper7%Fluoride: 0.11 mg/L, 7% of the 1.5 mg/L limitFluoride7%Nickel: 0.0018 mg/L, 9% of the 0.02 mg/L limitNickel9%Nitrate: 10.4 mg/L, 21% of the 50 mg/L limitNitrate21%Colour: 4.6 mg/L Pt/Co, 23% of the 20 mg/L Pt/Co limitColour23%Iron: 0.059 mg/L, 30% of the 0.2 mg/L limitIron30%Nitrite: 0.21 mg/L, 42% of the 0.5 mg/L limitNitrite42%Trihalomethanes: 0.043 mg/L, 43% of the 0.1 mg/L limitTrihalomethanes43%
  1. Trihalomethanes43%
  2. Nitrite42%
  3. Iron30%
  4. Colour23%
  5. Nitrate21%
  6. Nickel9%
  7. Fluoride7%
  8. Copper7%
  9. Turbidity7%
  10. Bromate5%
  11. Mercury4%
  12. Boron3%
  13. Manganese3%
  14. Aluminium3%
  15. Lead2%
  16. Arsenic1%
  17. Antimony<1%
  18. Selenium<1%
  19. Cadmium<1%
  20. Chromium<1%
  • E. coli none found
  • Coliform Bacteria none found
  • Conductivity 250 µS/cm
All 23 results as a table
SubstanceResultLegal limitShare of limit
Turbidity0.27 NTU4 NTU
7%
Aluminium0.005 mg/L0.2 mg/L
3%
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%
E. coli0 count/100mlMust be zeroNone found
Coliform Bacteria0 count/100mlMust be zeroNone found
Conductivity250 µS/cmNo legal limit–
Iron0.059 mg/L0.2 mg/L
30%
Manganese0.0013 mg/L0.05 mg/L
3%
Bromate0.00052 mg/L0.01 mg/L
5%
Boron0.028 mg/L1 mg/L
3%
Trihalomethanes0.043 mg/L0.1 mg/L
43%
Antimony0.000037 mg/L0.005 mg/L
<1%
Lead0.00016 mg/L0.01 mg/L
2%
Nickel0.0018 mg/L0.02 mg/L
9%
Selenium0.00023 mg/L0.04 mg/L
<1%
Mercury0.000042 mg/L0.001 mg/L
4%
Chromium0.000092 mg/L0.05 mg/L
<1%
Cadmium0.000025 mg/L0.005 mg/L
<1%
Arsenic0.00011 mg/L0.01 mg/L
1%
Fluoride0.11 mg/L1.5 mg/L
7%
Copper0.14 mg/L2 mg/L
7%
Nitrite0.21 mg/L0.5 mg/L
42%
Nitrate10.4 mg/L50 mg/L
21%

NP18 in short

Tap water in NP18 (Newport) is supplied by Dŵr Cymru Welsh Water in the Newport Central zone and scores 9.2 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 18 December 2024.

  • Trihalomethanes is the reading closest to its limit, at 43% of the 0.1 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 3rd cleanest of 4 areas tested in Newport1 area in Newport scored lower. The best is NP10 on 9.4.
  • Scores higher than 1 of 3 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.

Next door

NP209.3 out of 10NP109.4 out of 10NP198.6 out of 10

Questions about NP18 water

Is NP18 tap water safe to drink?

Based on the latest tests, NP18 (Newport) water scores 9.2/10, which is safe. 0 of 23 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.

What contaminants are in NP18 water?

We tested 23 contaminants in NP18 water. None exceeded recommended safe levels.

Who supplies water in NP18?

NP18 (Newport) 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 NP18?

NP18 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 NP18 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for NP18, 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