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tapwater
England and Wales average 9.0

Tap water in SY22, PowysSafe to drink.Soft.

Supplied by Dŵr Cymru Welsh Water. 294 samples, 20 substances, latest on 20 December 2025. Everything is inside the legal limit. One result, nitrate, sits close to the line.

See the filter we recommendSee everything that was tested

9.2 / 10

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

What to do about it

Waterdrop G3P600 Reverse Osmosis

Waterdrop G3P600 Reverse Osmosis

£550typical price

Removes nitrate, the result that stood out in SY22.

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Osmio PRO-III Ultimate Whole House

£499typical price

Removes nitrate, the result that stood out in SY22.

Check price at Osmio (opens in new tab)
ZeroWater 12-Cup Ready-Pour

ZeroWater 12-Cup Ready-Pour

£40typical price

Removes nitrate, the result that stood out in SY22.

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What's in a glass of SY22 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 83% of it. 16 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCopper: 0.0078 mg/L, <1% of the 2 mg/L limitCopper<1%Cadmium: 0.00002 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Selenium: 0.00021 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Nitrite: 0.003 mg/L, <1% of the 0.5 mg/L limitNitrite<1%Chromium: 0.00042 mg/L, <1% of the 0.05 mg/L limitChromium<1%Manganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Antimony: 0.000098 mg/L, 2% of the 0.005 mg/L limitAntimony2%Lead: 0.00022 mg/L, 2% of the 0.01 mg/L limitLead2%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Iron: 0.007 mg/L, 3% of the 0.2 mg/L limitIron3%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Fluoride: 0.06 mg/L, 4% of the 1.5 mg/L limitFluoride4%Nickel: 0.001 mg/L, 5% of the 0.02 mg/L limitNickel5%Arsenic: 0.00071 mg/L, 7% of the 0.01 mg/L limitArsenic7%Trihalomethanes: 0.0091 mg/L, 9% of the 0.1 mg/L limitTrihalomethanes9%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Nitrate: 41.6 mg/L, 83% of the 50 mg/L limitNitrate83%
  1. Nitrate83%
  2. Aluminium11%
  3. Trihalomethanes9%
  4. Arsenic7%
  5. Nickel5%
  6. Colour4%
  7. Fluoride4%
  8. Iron3%
  9. Turbidity3%
  10. Lead2%
  11. Antimony2%
  12. Manganese1%
  13. Chromium<1%
  14. Nitrite<1%
  15. Selenium<1%
  16. Cadmium<1%
  17. Copper<1%
  • Conductivity 477 µS/cm
  • pH 8.05 pH
  • Phosphate 0.012 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Nitrate41.6 mg/L50 mg/L
83%
Conductivity477 µS/cmNo legal limit–
Trihalomethanes0.0091 mg/L0.1 mg/L
9%
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Turbidity0.12 NTU4 NTU
3%
pH8.05 pHNo legal limit–
Nitrite0.003 mg/L0.5 mg/L
<1%
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.007 mg/L0.2 mg/L
3%
Manganese0.00073 mg/L0.05 mg/L
1%
Copper0.0078 mg/L2 mg/L
<1%
Fluoride0.06 mg/L1.5 mg/L
4%
Arsenic0.00071 mg/L0.01 mg/L
7%
Cadmium0.00002 mg/L0.005 mg/L
<1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.001 mg/L0.02 mg/L
5%
Lead0.00022 mg/L0.01 mg/L
2%
Antimony0.000098 mg/L0.005 mg/L
2%
Selenium0.00021 mg/L0.04 mg/L
<1%
Phosphate0.012 mg/LNo legal limit–

16mg of limescale minerals in every litre, typical for the SY area. SY22 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

SY22 in short

Tap water in SY22 (Powys) is supplied by Dŵr Cymru Welsh Water in the Powys Central zone and scores 9.2 out of 10, against an England and Wales average of 9.0. 1 of 20 tested substances was close to or over a limit. The latest sample is from 20 December 2025.

  • Nitrate is within its legal limit but flagged, at 83% of the 50 mg/L maximumAnything over three quarters of a limit is flagged here as worth watching. It has not gone over. See every reading
  • 16th cleanest of 17 areas tested in Powys1 area in Powys scored lower. 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

Next door

SY209.6 out of 10 · 16 mg/LSY179.5 out of 10 · 16 mg/LSY159.3 out of 10 · 16 mg/LSY219.5 out of 10 · 16 mg/LSY189.3 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 SY22 water

Is SY22 tap water safe to drink?

Based on the latest tests, SY22 (Powys) water scores 9.2/10, which is safe. 1 of 20 tested contaminants exceeded recommended levels. Water is supplied by Dŵr Cymru Welsh Water.

What contaminants are in SY22 water?

We tested 20 contaminants in SY22 water. 1 were flagged, including Nitrate.

Who supplies water in SY22?

SY22 (Powys) is supplied by Dŵr Cymru Welsh Water. You can view their full profile and compliance data on our supplier page.

Is SY22 water hard or soft?

No hardness reading has been published for SY22 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 SY22?

With 1 contaminant above recommended levels in SY22, a water filter could help. A filter jug or under-sink filter can reduce most common contaminants. See our filter recommendations for your area.

Are there PFAS forever chemicals in SY22 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for SY22, 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

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

River and groundwater readings near SY22

Environment Agency samples from rivers, groundwater and reservoirs nearby. Not your tap water. For scale they are shown against drinking water limits; rivers are judged against much stricter environmental standards, and on those every river in England fails for chemicals.

SubstanceReadingDrinking water limit
Manganese0.1 mg/L0.05 mg/L
Iron1.07 mg/L0.2 mg/L
Aluminium0.539 mg/L0.2 mg/L
pH8.02 pHNone
Temperature17.7 °CNone
Conductivity602 µS/cmNone
Nitrate7.2 mg/L50 mg/L
Nitrite0.021 mg/L0.5 mg/L
Phosphate0.062 mg/LNone
Dissolved Oxygen9.11 mg/LNone
Turbidity1.5 NTU4 NTU
Ammonia0.035 mg/L0.5 mg/L
Hardness (as CaCO3)207 mg/LNone
Chromium0.000945 mg/L0.05 mg/L
Copper0.00167 mg/L2 mg/L

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We'll email you when water quality data changes for SY22.

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