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tapwater
England and Wales average 9.0

Tap water in SY20, PowysSafe to drink.Soft.

Supplied by Dŵr Cymru Welsh Water. 694 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

9.6 / 10

The tank is as full as the score. The specks are the minerals that make water hard.

What to do about it

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Basic chlorine and taste improvement on a budget

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What's in a glass of SY20 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.

Colour came closest to a limit, at 23% of it. 20 of 20 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%Selenium: 0.00023 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Arsenic: 0.00012 mg/L, 1% of the 0.01 mg/L limitArsenic1%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%Bromate: 0.00027 mg/L, 3% of the 0.01 mg/L limitBromate3%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%Antimony: 0.00015 mg/L, 3% of the 0.005 mg/L limitAntimony3%Aluminium: 0.0071 mg/L, 4% of the 0.2 mg/L limitAluminium4%Trihalomethanes: 0.0037 mg/L, 4% of the 0.1 mg/L limitTrihalomethanes4%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%Iron: 0.015 mg/L, 8% of the 0.2 mg/L limitIron8%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%
  1. Colour23%
  2. Nitrite11%
  3. Iron8%
  4. Fluoride7%
  5. Turbidity7%
  6. Nitrate5%
  7. Mercury4%
  8. Trihalomethanes4%
  9. Aluminium4%
  10. Chromium3%
  11. Antimony3%
  12. Nickel3%
  13. Copper3%
  14. Boron3%
  15. Bromate3%
  16. Lead2%
  17. Manganese1%
  18. Arsenic1%
  19. Selenium<1%
  20. Cadmium<1%
  • E. coli none found
  • Coliform Bacteria none found
  • Conductivity 48 µS/cm
All 23 results as a table
SubstanceResultLegal limitShare of limit
E. coli0 count/100mlMust be zeroNone found
Bromate0.00027 mg/L0.01 mg/L
3%
Coliform Bacteria0 count/100mlMust be zeroNone found
Trihalomethanes0.0037 mg/L0.1 mg/L
4%
Conductivity48 µS/cmNo legal limit–
Arsenic0.00012 mg/L0.01 mg/L
1%
Selenium0.00023 mg/L0.04 mg/L
<1%
Cadmium0.000025 mg/L0.005 mg/L
<1%
Nickel0.00059 mg/L0.02 mg/L
3%
Lead0.00016 mg/L0.01 mg/L
2%
Antimony0.00015 mg/L0.005 mg/L
3%
Copper0.058 mg/L2 mg/L
3%
Chromium0.0015 mg/L0.05 mg/L
3%
Nitrite0.056 mg/L0.5 mg/L
11%
Iron0.015 mg/L0.2 mg/L
8%
Aluminium0.0071 mg/L0.2 mg/L
4%
Nitrate2.61 mg/L50 mg/L
5%
Manganese0.00068 mg/L0.05 mg/L
1%
Turbidity0.27 NTU4 NTU
7%
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%
Fluoride0.11 mg/L1.5 mg/L
7%
Mercury0.000042 mg/L0.001 mg/L
4%
Boron0.028 mg/L1 mg/L
3%

16mg of limescale minerals in every litre, typical for the SY area. SY20 has no reading of its own.

Soft water. Kind to kettles, boilers and skin

You will not need a softener here, and you will use less soap and detergent than most of England.

Soft400 mg/L

SY20 in short

Tap water in SY20 (Powys) is supplied by Dŵr Cymru Welsh Water in the Powys Central zone and scores 9.6 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.

  • 4th cleanest of 17 areas tested in PowysOnly 3 areas in Powys scored higher. The best is LD3 on 9.7.
  • Soft water at 16 mg/LLimescale is not a problem across the SY postcode area, so skip softeners and scale filters entirely. How hardness is measured
  • 0.6 points above the national average of 9Cleaner than the typical tested district in the UK. Compare every area

Next door

SY179.5 out of 10 · 16 mg/LSY159.3 out of 10 · 16 mg/LSY189.3 out of 10 · 16 mg/LSY219.5 out of 10 · 16 mg/LLD29.4 out of 10LD39.7 out of 10SY169.1 out of 10 · 16 mg/LLD49.4 out of 10LD59.4 out of 10LD69.4 out of 10

Questions about SY20 water

Is SY20 tap water safe to drink?

Based on the latest tests, SY20 (Powys) water scores 9.6/10, which is safe. 0 of 23 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.

What contaminants are in SY20 water?

We tested 23 contaminants in SY20 water. None exceeded recommended safe levels.

Who supplies water in SY20?

SY20 (Powys) is supplied by Dŵr Cymru Welsh Water. You can view their full profile and compliance data on our supplier page.

Is SY20 water hard or soft?

No hardness reading has been published for SY20 itself. Across the SY postcode area the typical value is 16 mg/L CaCO3, which is classified as soft. Soft water is gentle on appliances and skin.

Should I use a water filter in SY20?

SY20 water scored 9.6/10 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 SY20 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for SY20, 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

How to test your waterBest water filtersFilter shower headsWater testing kitsUK water rankingsWater hardness checkerWater hardness map

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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