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tapwater
England and Wales average 9.0

Tap water in NP4, TorfaenSafe to drink.

Supplied by Dŵr Cymru Welsh Water. 679 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

9.5 / 10

The tank is as full as the score.

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What's in a glass of NP4 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 30% 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%Chromium: 0.000096 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: 0.000046 mg/L, <1% of the 0.005 mg/L limitAntimony<1%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%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: 0.00039 mg/L, 4% of the 0.01 mg/L limitArsenic4%Mercury: 0.000042 mg/L, 4% of the 0.001 mg/L limitMercury4%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%Nitrite: 0.056 mg/L, 11% of the 0.5 mg/L limitNitrite11%Trihalomethanes: 0.017 mg/L, 17% of the 0.1 mg/L limitTrihalomethanes17%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%
  1. Iron30%
  2. Colour23%
  3. Trihalomethanes17%
  4. Nitrite11%
  5. Fluoride7%
  6. Turbidity7%
  7. Nitrate5%
  8. Mercury4%
  9. Arsenic4%
  10. Nickel3%
  11. Copper3%
  12. Boron3%
  13. Manganese3%
  14. Aluminium3%
  15. Lead2%
  16. Antimony<1%
  17. Selenium<1%
  18. Cadmium<1%
  19. Chromium<1%
  20. Bromate<1%
  • E. coli none found
  • Coliform Bacteria none found
  • Conductivity 250 µS/cm
All 23 results as a table
SubstanceResultLegal limitShare of limit
Antimony0.000046 mg/L0.005 mg/L
<1%
Aluminium0.005 mg/L0.2 mg/L
3%
E. coli0 count/100mlMust be zeroNone found
Coliform Bacteria0 count/100mlMust be zeroNone found
Selenium0.00023 mg/L0.04 mg/L
<1%
Iron0.059 mg/L0.2 mg/L
30%
Lead0.00016 mg/L0.01 mg/L
2%
Manganese0.0013 mg/L0.05 mg/L
3%
Nickel0.00059 mg/L0.02 mg/L
3%
Chromium0.000096 mg/L0.05 mg/L
<1%
Turbidity0.27 NTU4 NTU
7%
Arsenic0.00039 mg/L0.01 mg/L
4%
Fluoride0.11 mg/L1.5 mg/L
7%
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%
Cadmium0.000025 mg/L0.005 mg/L
<1%
Mercury0.000042 mg/L0.001 mg/L
4%
Copper0.058 mg/L2 mg/L
3%
Nitrite0.056 mg/L0.5 mg/L
11%
Nitrate2.61 mg/L50 mg/L
5%
Conductivity250 µS/cmNo legal limit–
Bromate3.1e-7 mg/L0.01 mg/L
<1%
Trihalomethanes0.017 mg/L0.1 mg/L
17%
Boron0.028 mg/L1 mg/L
3%

NP4 in short

Tap water in NP4 (Torfaen) is supplied by Dŵr Cymru Welsh Water in the Torfaen Central zone and scores 9.5 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.

  • Nothing tested came within 40% of its legal limitThe highest was Iron at 30% of the 0.2 mg/L maximum. See every reading
  • Right on the national average of 9 out of 10Most of the country's tested districts land within half a point of NP4. Compare every area
  • 23 substances checked across 679 samplesResults were collected between January 2024 and December 2024 by Dŵr Cymru Welsh Water.

Next door

NP449.3 out of 10

Questions about NP4 water

Is NP4 tap water safe to drink?

Based on the latest tests, NP4 (Torfaen) water scores 9.5/10, which is safe. 0 of 23 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.

What contaminants are in NP4 water?

We tested 23 contaminants in NP4 water. None exceeded recommended safe levels.

Who supplies water in NP4?

NP4 (Torfaen) 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 NP4?

NP4 water scored 9.5/10 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 NP4 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for NP4, 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.

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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