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tapwater
England and Wales average 9.0

Tap water in SY19, PowysSafe to drink.Soft.

Supplied by Dŵr Cymru Welsh Water. 306 samples, 22 substances, latest on 19 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.3 / 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 SY19 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.

Nitrate came closest to a limit, at 50% of it. 18 of 19 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCadmium: 0.00002 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Selenium: 0.0002 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Antimony: 0.000059 mg/L, 1% of the 0.005 mg/L limitAntimony1%Copper: 0.0251 mg/L, 1% of the 2 mg/L limitCopper1%Chromium: 0.00064 mg/L, 1% of the 0.05 mg/L limitChromium1%Lead: 0.00014 mg/L, 1% of the 0.01 mg/L limitLead1%Manganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Mercury: 0.000022 mg/L, 2% of the 0.001 mg/L limitMercury2%Nitrite: 0.013 mg/L, 3% of the 0.5 mg/L limitNitrite3%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Boron: 0.03 mg/L, 3% of the 1 mg/L limitBoron3%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Nickel: 0.001 mg/L, 5% of the 0.02 mg/L limitNickel5%Iron: 0.0119 mg/L, 6% of the 0.2 mg/L limitIron6%Fluoride: 0.09 mg/L, 6% of the 1.5 mg/L limitFluoride6%Arsenic: 0.0009 mg/L, 9% of the 0.01 mg/L limitArsenic9%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Trihalomethanes: 0.0108 mg/L, 11% of the 0.1 mg/L limitTrihalomethanes11%Nitrate: 24.9 mg/L, 50% of the 50 mg/L limitNitrate50%
  1. Nitrate50%
  2. Trihalomethanes11%
  3. Aluminium11%
  4. Arsenic9%
  5. Fluoride6%
  6. Iron6%
  7. Nickel5%
  8. Colour4%
  9. Turbidity3%
  10. Boron3%
  11. Nitrite3%
  12. Mercury2%
  13. Manganese1%
  14. Lead1%
  15. Chromium1%
  16. Copper1%
  17. Antimony1%
  18. Selenium<1%
  19. Cadmium<1%
  • pH 7.64 pH
  • Conductivity 447 µS/cm
  • Phosphate 0.71 mg/L
All 22 results as a table
SubstanceResultLegal limitShare of limit
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Turbidity0.12 NTU4 NTU
3%
pH7.64 pHNo legal limit–
Arsenic0.0009 mg/L0.01 mg/L
9%
Cadmium0.00002 mg/L0.005 mg/L
<1%
Selenium0.0002 mg/L0.04 mg/L
<1%
Nitrate24.9 mg/L50 mg/L
50%
Chromium0.00064 mg/L0.05 mg/L
1%
Nickel0.001 mg/L0.02 mg/L
5%
Lead0.00014 mg/L0.01 mg/L
1%
Antimony0.000059 mg/L0.005 mg/L
1%
Aluminium0.021 mg/L0.2 mg/L
11%
Nitrite0.013 mg/L0.5 mg/L
3%
Iron0.0119 mg/L0.2 mg/L
6%
Manganese0.00073 mg/L0.05 mg/L
1%
Copper0.0251 mg/L2 mg/L
1%
Trihalomethanes0.0108 mg/L0.1 mg/L
11%
Conductivity447 µS/cmNo legal limit–
Mercury0.000022 mg/L0.001 mg/L
2%
Fluoride0.09 mg/L1.5 mg/L
6%
Boron0.03 mg/L1 mg/L
3%
Phosphate0.71 mg/LNo legal limit–

16mg of limescale minerals in every litre, typical for the SY area. SY19 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

SY19 in short

Tap water in SY19 (Powys) is supplied by Dŵr Cymru Welsh Water in the Powys Central zone and scores 9.3 out of 10, against an England and Wales average of 9.0. None of the 22 tested substances came close to a limit. The latest sample is from 19 December 2025.

  • 15th cleanest of 17 areas tested in Powys2 areas in Powys scored lower. The best is LD3 on 9.7.
  • Nitrate is the reading closest to its limit, at 50% of the 50 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 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

Next door

SY209.6 out of 10 · 16 mg/LSY179.5 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 10

Questions about SY19 water

Is SY19 tap water safe to drink?

Based on the latest tests, SY19 (Powys) water scores 9.3/10, which is safe. 0 of 22 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.

What contaminants are in SY19 water?

We tested 22 contaminants in SY19 water. None exceeded recommended safe levels.

Who supplies water in SY19?

SY19 (Powys) is supplied by Dŵr Cymru Welsh Water. You can view their full profile and compliance data on our supplier page.

Is SY19 water hard or soft?

No hardness reading has been published for SY19 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 SY19?

SY19 water scored 9.3/10 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 SY19 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for SY19, 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