Tap water in NG24, Newark and SherwoodSafe to drink.Very hard.
Supplied by Severn Trent. 826 samples, 20 substances, latest on 24 December 2025. Everything is inside the legal limit, and nothing comes close to it.
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
Hard water: compare softener quotes
At 341 mg/L a softener is the only thing that stops limescale. Filters do not soften water.
It pays for itself in most homes at this hardness, through a boiler that stays efficient and appliances that last.
ZeroWater 12-Cup Ready-Pour
£40typical price
Households concerned about PFAS and heavy metals
Waterdrop 10UA Under Sink
£70typical price
High-volume under-sink filtration without RO complexity
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What's in a glass of NG24 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.
Arsenic came closest to a limit, at 14% of it. 17 of 17 substances used under a quarter of theirs.
- Arsenic14%
- Nitrate12%
- Aluminium11%
- Iron10%
- Nickel5%
- Fluoride4%
- Colour4%
- Turbidity3%
- Manganese1%
- Lead1%
- Antimony1%
- Chromium<1%
- Nitrite<1%
- Copper<1%
- Selenium<1%
- Cadmium<1%
- Trihalomethanes0%
- Conductivity 393 µS/cm
- pH 7.97 pH
- Phosphate 0.713 mg/L
All 20 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Conductivity | 393 µS/cm | No legal limit | – |
| Manganese | 0.00073 mg/L | 0.05 mg/L | 1% |
| Copper | 0.0083 mg/L | 2 mg/L | <1% |
| Fluoride | 0.06 mg/L | 1.5 mg/L | 4% |
| Trihalomethanes | 0 mg/L | 0.1 mg/L | <1% |
| Arsenic | 0.00142 mg/L | 0.01 mg/L | 14% |
| Cadmium | 0.00001 mg/L | 0.005 mg/L | <1% |
| Chromium | 0.00042 mg/L | 0.05 mg/L | <1% |
| pH | 7.97 pH | No legal limit | – |
| Nickel | 0.001 mg/L | 0.02 mg/L | 5% |
| Colour | 0.8 mg/L Pt/Co | 20 mg/L Pt/Co | 4% |
| Lead | 0.00014 mg/L | 0.01 mg/L | 1% |
| Antimony | 0.000059 mg/L | 0.005 mg/L | 1% |
| Selenium | 0.00009 mg/L | 0.04 mg/L | <1% |
| Nitrate | 5.8 mg/L | 50 mg/L | 12% |
| Turbidity | 0.12 NTU | 4 NTU | 3% |
| Nitrite | 0.003 mg/L | 0.5 mg/L | <1% |
| Aluminium | 0.021 mg/L | 0.2 mg/L | 11% |
| Iron | 0.0203 mg/L | 0.2 mg/L | 10% |
| Phosphate | 0.713 mg/L | No legal limit | – |
341mg of limescale minerals in every litre, typical for the NG area. NG24 has no reading of its own.
This is the water that furs up kettles
Very hard on the UK scale. It is fine to drink. It is hard on boilers, showers, skin and anything that heats water, and a jug or tap filter will not change that.
Softener quotes for NG24
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Your river is the Slough Dyke Catchment (trib of Trent), rated moderate
The Environment Agency rated the Slough Dyke Catchment (trib of Trent) as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by insects and other small river life, dissolved oxygen and ammonia. 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
NG24 in short
Tap water in NG24 (Newark and Sherwood) is supplied by Severn Trent in the Newark and Sherwood Central zone and scores 9.6 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 24 December 2025.
- The cleanest tap water of the 5 areas tested in Newark and SherwoodNG24 scores 9.6 out of 10, ahead of NG23 in second place on 9.3.
- Among the hardest water in the country at 341 mg/LVery hard starts at 250 mg/L. At this level kettles scale up within weeks and a softener is a normal purchase across the NG postcode area. How hardness is measured
- Scores higher than all 4 neighbouring districtsThe nearest rival is NG23 on 9.3, against 9.6 here. Compare with NG23
Questions about NG24 water
Is NG24 tap water safe to drink?
Based on the latest tests, NG24 (Newark and Sherwood) water scores 9.6/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.
What contaminants are in NG24 water?
We tested 20 contaminants in NG24 water. None exceeded recommended safe levels.
Who supplies water in NG24?
NG24 (Newark and Sherwood) is supplied by Severn Trent. You can view their full profile and compliance data on our supplier page.
Is NG24 water hard or soft?
No hardness reading has been published for NG24 itself. Across the NG postcode area the typical value is 341 mg/L CaCO3, which is classified as very hard. Hard water can cause limescale buildup. A water softener or filter jug may help.
Should I use a water filter in NG24?
NG24 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 NG24 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for NG24, 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 NG24?
The Environment Agency rated the Slough Dyke Catchment (trib of Trent) as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by insects and other small river life, dissolved oxygen and ammonia. 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 NG24, which is treated before it reaches homes.
Keep reading
- Best Water Softener UKHarvey, Kinetico, BWT, Monarch and Water2Buy compared, with real costs
- Do I Need a Water Softener?The hardness bands, the symptoms, and a postcode check
- UK Water Hardness MapIs your water hard or soft, and does it matter?
- Is UK Tap Water Safe?Everything you need to know about tap water safety in the UK
- Do I need a water softener?The hardness bands, the symptoms, and when the answer is no
- Best water softener UKHarvey, Kinetico, BWT, Monarch and Water2Buy compared
- Water softener costUnit, fitting and salt, and how long the payback takes
- Installation explainedWhere it goes, the bypass tap, the drain, DIY or plumber
- Harvey vs KineticoThe two premium twin-cylinder brands, side by side
- Softener salt guideTablet, block or granular, and how much you get through
- Salt-free softenersConditioners and electronic descalers, honestly assessed
How to test your waterBest water filtersFilter shower headsWater testing kitsUK water rankingsWater hardness checkerWater hardness map
River and groundwater readings near NG24
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.
Get alerts for your area
We'll email you when water quality data changes for NG24.