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tapwater
England and Wales average 9.0

Tap water in SY23, CeredigionSafe to drink.Soft.

Supplied by Dŵr Cymru Welsh Water. 1,424 samples, 23 substances, latest on 27 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 SY23 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 limitChromium: 0.000092 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%Antimony: 0.000028 mg/L, <1% of the 0.005 mg/L limitAntimony<1%Selenium: 0.00023 mg/L, <1% of the 0.04 mg/L limitSelenium<1%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%Aluminium: 0.005 mg/L, 3% of the 0.2 mg/L limitAluminium3%Nitrite: 0.013 mg/L, 3% of the 0.5 mg/L limitNitrite3%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: 0.00035 mg/L, 3% of the 0.01 mg/L limitArsenic3%Bromate: 0.00041 mg/L, 4% of the 0.01 mg/L limitBromate4%Mercury: 0.000042 mg/L, 4% of the 0.001 mg/L limitMercury4%Trihalomethanes: 0.0054 mg/L, 5% of the 0.1 mg/L limitTrihalomethanes5%Turbidity: 0.27 NTU, 7% of the 4 NTU limitTurbidity7%Fluoride: 0.11 mg/L, 7% of the 1.5 mg/L limitFluoride7%Manganese: 0.0043 mg/L, 9% of the 0.05 mg/L limitManganese9%Nitrate: 10.8 mg/L, 22% of the 50 mg/L limitNitrate22%Colour: 4.6 mg/L Pt/Co, 23% of the 20 mg/L Pt/Co limitColour23%
  1. Colour23%
  2. Nitrate22%
  3. Manganese9%
  4. Fluoride7%
  5. Turbidity7%
  6. Trihalomethanes5%
  7. Mercury4%
  8. Bromate4%
  9. Arsenic3%
  10. Nickel3%
  11. Copper3%
  12. Boron3%
  13. Nitrite3%
  14. Aluminium3%
  15. Iron2%
  16. Lead2%
  17. Selenium<1%
  18. Antimony<1%
  19. Cadmium<1%
  20. Chromium<1%
  • Coliform Bacteria none found
  • Conductivity 240 µS/cm
  • E. coli none found
All 23 results as a table
SubstanceResultLegal limitShare of limit
Coliform Bacteria0 count/100mlMust be zeroNone found
Manganese0.0043 mg/L0.05 mg/L
9%
Conductivity240 µS/cmNo legal limit–
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%
E. coli0 count/100mlMust be zeroNone found
Turbidity0.27 NTU4 NTU
7%
Iron0.004 mg/L0.2 mg/L
2%
Trihalomethanes0.0054 mg/L0.1 mg/L
5%
Selenium0.00023 mg/L0.04 mg/L
<1%
Antimony0.000028 mg/L0.005 mg/L
<1%
Mercury0.000042 mg/L0.001 mg/L
4%
Chromium0.000092 mg/L0.05 mg/L
<1%
Nickel0.00059 mg/L0.02 mg/L
3%
Aluminium0.005 mg/L0.2 mg/L
3%
Lead0.00016 mg/L0.01 mg/L
2%
Boron0.028 mg/L1 mg/L
3%
Fluoride0.11 mg/L1.5 mg/L
7%
Arsenic0.00035 mg/L0.01 mg/L
3%
Cadmium0.000025 mg/L0.005 mg/L
<1%
Bromate0.00041 mg/L0.01 mg/L
4%
Copper0.058 mg/L2 mg/L
3%
Nitrite0.013 mg/L0.5 mg/L
3%
Nitrate10.8 mg/L50 mg/L
22%

16mg of limescale minerals in every litre, typical for the SY area. SY23 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

SY23 in short

Tap water in SY23 (Ceredigion) is supplied by Dŵr Cymru Welsh Water in the Ceredigion 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 27 December 2024.

  • 3rd cleanest of 10 areas tested in CeredigionOnly 2 areas in Ceredigion scored higher. The best is SA43 on 9.6.
  • 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

SA409.5 out of 10SA439.6 out of 10SA469.5 out of 10SA449.4 out of 10SA479.5 out of 10SA459.5 out of 10SA489.6 out of 10SY259.5 out of 10 · 16 mg/LSY249.4 out of 10 · 16 mg/L

Questions about SY23 water

Is SY23 tap water safe to drink?

Based on the latest tests, SY23 (Ceredigion) 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 SY23 water?

We tested 23 contaminants in SY23 water. None exceeded recommended safe levels.

Who supplies water in SY23?

SY23 (Ceredigion) is supplied by Dŵr Cymru Welsh Water. You can view their full profile and compliance data on our supplier page.

Is SY23 water hard or soft?

No hardness reading has been published for SY23 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 SY23?

SY23 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 SY23 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for SY23, 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