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England and Wales average 9.0

Tap water in NP22, Blaenau GwentSafe to drink.

Supplied by Dŵr Cymru Welsh Water. 719 samples, 23 substances, latest on 20 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 NP22 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 36% 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: 0.00012 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%Manganese: 0.00068 mg/L, 1% of the 0.05 mg/L limitManganese1%Lead: 0.00016 mg/L, 2% of the 0.01 mg/L limitLead2%Iron: 0.004 mg/L, 2% of the 0.2 mg/L limitIron2%Antimony: 0.00011 mg/L, 2% of the 0.005 mg/L limitAntimony2%Arsenic: 0.00025 mg/L, 3% of the 0.01 mg/L limitArsenic3%Boron: 0.028 mg/L, 3% of the 1 mg/L limitBoron3%Nickel: 0.00059 mg/L, 3% of the 0.02 mg/L limitNickel3%Aluminium: 0.0067 mg/L, 3% of the 0.2 mg/L limitAluminium3%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%Copper: 0.29 mg/L, 14% of the 2 mg/L limitCopper14%Colour: 4.6 mg/L Pt/Co, 23% of the 20 mg/L Pt/Co limitColour23%Trihalomethanes: 0.036 mg/L, 36% of the 0.1 mg/L limitTrihalomethanes36%
  1. Trihalomethanes36%
  2. Colour23%
  3. Copper14%
  4. Nitrite11%
  5. Fluoride7%
  6. Turbidity7%
  7. Nitrate5%
  8. Mercury4%
  9. Aluminium3%
  10. Nickel3%
  11. Boron3%
  12. Arsenic3%
  13. Antimony2%
  14. Iron2%
  15. Lead2%
  16. Manganese1%
  17. Selenium<1%
  18. Cadmium<1%
  19. Chromium<1%
  20. Bromate<1%
  • Conductivity 120 µS/cm
  • E. coli none found
  • Coliform Bacteria none found
All 23 results as a table
SubstanceResultLegal limitShare of limit
Trihalomethanes0.036 mg/L0.1 mg/L
36%
Bromate3.1e-7 mg/L0.01 mg/L
<1%
Conductivity120 µS/cmNo legal limit–
E. coli0 count/100mlMust be zeroNone found
Boron0.028 mg/L1 mg/L
3%
Coliform Bacteria0 count/100mlMust be zeroNone found
Manganese0.00068 mg/L0.05 mg/L
1%
Iron0.004 mg/L0.2 mg/L
2%
Lead0.00016 mg/L0.01 mg/L
2%
Antimony0.00011 mg/L0.005 mg/L
2%
Aluminium0.0067 mg/L0.2 mg/L
3%
Selenium0.00023 mg/L0.04 mg/L
<1%
Turbidity0.27 NTU4 NTU
7%
Fluoride0.11 mg/L1.5 mg/L
7%
Arsenic0.00025 mg/L0.01 mg/L
3%
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%
Cadmium0.000025 mg/L0.005 mg/L
<1%
Nickel0.00059 mg/L0.02 mg/L
3%
Mercury0.000042 mg/L0.001 mg/L
4%
Chromium0.00012 mg/L0.05 mg/L
<1%
Nitrite0.056 mg/L0.5 mg/L
11%
Copper0.29 mg/L2 mg/L
14%
Nitrate2.61 mg/L50 mg/L
5%

NP22 in short

Tap water in NP22 (Blaenau Gwent) is supplied by Dŵr Cymru Welsh Water in the Blaenau Gwent 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 20 December 2024.

  • 2nd cleanest of 3 areas tested in Blaenau GwentSquarely mid-table for Blaenau Gwent, between NP13 on 9.6 and NP23 on 9.5.
  • Nothing tested came within 40% of its legal limitThe highest was Trihalomethanes at 36% of the 0.1 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 NP22. Compare every area

Next door

NP139.6 out of 10NP239.5 out of 10

Questions about NP22 water

Is NP22 tap water safe to drink?

Based on the latest tests, NP22 (Blaenau Gwent) 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 NP22 water?

We tested 23 contaminants in NP22 water. None exceeded recommended safe levels.

Who supplies water in NP22?

NP22 (Blaenau Gwent) 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 NP22?

NP22 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 NP22 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for NP22, 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