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tapwater
England and Wales average 9.0

Tap water in S80, BassetlawSafe to drink.Moderately soft.

Supplied by Severn Trent. 1,120 samples, 20 substances, latest on 18 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

8.8 / 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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Households concerned about PFAS and heavy metals

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High-volume under-sink filtration without RO complexity

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Basic chlorine and taste improvement on a budget

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What's in a glass of S80 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 66% of it. 15 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCadmium: 0.00001 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Selenium: 0.00014 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Copper: 0.0112 mg/L, <1% of the 2 mg/L limitCopper<1%Chromium: 0.00042 mg/L, <1% of the 0.05 mg/L limitChromium<1%Antimony: 0.000059 mg/L, 1% of the 0.005 mg/L limitAntimony1%Lead: 0.00014 mg/L, 1% of the 0.01 mg/L limitLead1%Nitrite: 0.013 mg/L, 3% of the 0.5 mg/L limitNitrite3%Manganese: 0.00136 mg/L, 3% of the 0.05 mg/L limitManganese3%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%Turbidity: 0.23 NTU, 6% of the 4 NTU limitTurbidity6%Trihalomethanes: 0.0059 mg/L, 6% of the 0.1 mg/L limitTrihalomethanes6%Iron: 0.0142 mg/L, 7% of the 0.2 mg/L limitIron7%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Arsenic: 0.0019 mg/L, 19% of the 0.01 mg/L limitArsenic19%Fluoride: 0.97 mg/L, 65% of the 1.5 mg/L limitFluoride65%Nitrate: 32.9 mg/L, 66% of the 50 mg/L limitNitrate66%
  1. Nitrate66%
  2. Fluoride65%
  3. Arsenic19%
  4. Aluminium11%
  5. Iron7%
  6. Trihalomethanes6%
  7. Turbidity6%
  8. Nickel5%
  9. Colour4%
  10. Manganese3%
  11. Nitrite3%
  12. Lead1%
  13. Antimony1%
  14. Chromium<1%
  15. Copper<1%
  16. Selenium<1%
  17. Cadmium<1%
  • Conductivity 573 µS/cm
  • pH 7.61 pH
  • Phosphate 0.896 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Turbidity0.23 NTU4 NTU
6%
Conductivity573 µS/cmNo legal limit–
pH7.61 pHNo legal limit–
Nitrate32.9 mg/L50 mg/L
66%
Nitrite0.013 mg/L0.5 mg/L
3%
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.0142 mg/L0.2 mg/L
7%
Trihalomethanes0.0059 mg/L0.1 mg/L
6%
Manganese0.00136 mg/L0.05 mg/L
3%
Copper0.0112 mg/L2 mg/L
<1%
Fluoride0.97 mg/L1.5 mg/L
65%
Arsenic0.0019 mg/L0.01 mg/L
19%
Cadmium0.00001 mg/L0.005 mg/L
<1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.001 mg/L0.02 mg/L
5%
Lead0.00014 mg/L0.01 mg/L
1%
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Antimony0.000059 mg/L0.005 mg/L
1%
Selenium0.00014 mg/L0.04 mg/L
<1%
Phosphate0.896 mg/LNo legal limit–

88mg of limescale minerals in every litre, typical for the S area. S80 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
Outside your tap

Your river is the Ryton from Anston Brook to Idle, rated moderate

The Environment Agency rated the Ryton from Anston Brook to Idle as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by phosphate, fish and water plants and algae. It fails the chemical test, as every river, estuary and stretch of coast in England does, because of long-lasting pollutants such as mercury, PFOS (a forever chemical) and old flame retardants.

None of this is a test of your tap water. Environment Agency record · River health across England

S80 in short

Tap water in S80 (Bassetlaw) is supplied by Severn Trent in the Bassetlaw Central zone and scores 8.8 out of 10, against an England and Wales average of 9.0. None of the 20 tested substances came close to a limit. The latest sample is from 18 December 2025.

  • Nitrate is the reading closest to its limit, at 66% of the 50 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 2nd cleanest of 4 areas tested in BassetlawOnly 1 area in Bassetlaw scored higher. The best is DN10 on 8.8.
  • Moderately soft water at 88 mg/LLittle limescale to speak of across the S postcode area. A softener would be money wasted. How hardness is measured

Next door

DN108.8 out of 10 · 293 mg/LDN228.7 out of 10 · 293 mg/LS818.7 out of 10 · 88 mg/L

Questions about S80 water

Is S80 tap water safe to drink?

Based on the latest tests, S80 (Bassetlaw) water scores 8.8/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in S80 water?

We tested 20 contaminants in S80 water. None exceeded recommended safe levels.

Who supplies water in S80?

S80 (Bassetlaw) is supplied by Severn Trent. You can view their full profile and compliance data on our supplier page.

Is S80 water hard or soft?

No hardness reading has been published for S80 itself. Across the S postcode area the typical value is 88 mg/L CaCO3, which is classified as moderately soft. This is a moderate hardness level.

Should I use a water filter in S80?

S80 water scored 8.8/10 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 S80 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for S80, 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.

How clean is the river near S80?

The Environment Agency rated the Ryton from Anston Brook to Idle as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by phosphate, fish and water plants and algae. It fails the chemical test, as every river, estuary and stretch of coast in England does, because of long-lasting pollutants such as mercury, PFOS (a forever chemical) and old flame retardants. This is a rating of the river, not of tap water in S80, which is treated before it reaches homes.

Keep reading

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

River and groundwater readings near S80

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
pH8.27 pHNone
Temperature12 °CNone
Conductivity869 µS/cmNone
Nitrate11 mg/L50 mg/L
Nitrite0.031 mg/L0.5 mg/L
Phosphate0.048 mg/LNone
Dissolved Oxygen9.85 mg/LNone
Ammonia0.071 mg/L0.5 mg/L
Lead0.00084 mg/L0.01 mg/L
Cadmium0.00011 mg/L0.005 mg/L
Nickel0.0037 mg/L0.02 mg/L
Hardness (as CaCO3)361 mg/LNone
Zinc0.054 mg/LNone
Chromium0.00071 mg/L0.05 mg/L
Copper0.00045 mg/L2 mg/L
Arsenic0.003 mg/L0.01 mg/L

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Source: Severn Trent 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