Tap water in EX14, East DevonSafe to drink.Very hard.
Supplied by South West Water. 610 samples, 16 substances, latest on 17 December 2025. Everything is inside the legal limit, and nothing comes close to it.
9.0 / 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 236 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 EX14 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. 14 of 15 substances used under a quarter of theirs.
- Nitrate66%
- Nickel17%
- Aluminium13%
- Lead13%
- Colour10%
- Arsenic6%
- Iron4%
- Turbidity3%
- Copper3%
- Selenium3%
- Antimony2%
- Manganese2%
- Chromium2%
- Bromate1%
- Cadmium1%
- pH 7.9 pH
All 16 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Aluminium | 0.0257 mg/L | 0.2 mg/L | 13% |
| Colour | 2 mg/L Pt/Co | 20 mg/L Pt/Co | 10% |
| Iron | 0.0076 mg/L | 0.2 mg/L | 4% |
| Manganese | 0.000867 mg/L | 0.05 mg/L | 2% |
| pH | 7.9 pH | No legal limit | – |
| Turbidity | 0.13 NTU | 4 NTU | 3% |
| Copper | 0.062 mg/L | 2 mg/L | 3% |
| Lead | 0.00126 mg/L | 0.01 mg/L | 13% |
| Nickel | 0.0033 mg/L | 0.02 mg/L | 17% |
| Bromate | 0.000132 mg/L | 0.01 mg/L | 1% |
| Antimony | 0.0001 mg/L | 0.005 mg/L | 2% |
| Arsenic | 0.00062 mg/L | 0.01 mg/L | 6% |
| Cadmium | 0.00006 mg/L | 0.005 mg/L | 1% |
| Chromium | 0.0008 mg/L | 0.05 mg/L | 2% |
| Nitrate | 32.9 mg/L | 50 mg/L | 66% |
| Selenium | 0.0012 mg/L | 0.04 mg/L | 3% |
236mg of limescale minerals in every litre
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 EX14
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Your river is the Middle River Otter, rated moderate
The Environment Agency rated the Middle River Otter as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by water plants and algae and phosphate. 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. Its ecological rating has improved since the previous assessment.
None of this is a test of your tap water. Environment Agency record · River health across England
EX14 in short
Tap water in EX14 (East Devon) is supplied by South West Water in the East Devon Central zone and scores 9.0 out of 10, against an England and Wales average of 9.0. None of the 16 tested substances came close to a limit. The latest sample is from 17 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
- 7th cleanest of 9 areas tested in East Devon2 areas in East Devon scored lower. The best is EX11 on 9.5.
- Hard water at 236 mg/LHard starts at 180 mg/L, the point where a softener begins to pay for itself. Limescale will build up in EX14. How hardness is measured
Questions about EX14 water
Is EX14 tap water safe to drink?
Based on the latest tests, EX14 (East Devon) water scores 9/10, which is safe. 0 of 16 tested contaminants exceeded recommended levels. Water is supplied by South West Water.
What contaminants are in EX14 water?
We tested 16 contaminants in EX14 water. None exceeded recommended safe levels.
Who supplies water in EX14?
EX14 (East Devon) is supplied by South West Water. You can view their full profile and compliance data on our supplier page.
Is EX14 water hard or soft?
Water in EX14 (East Devon) has a hardness of 236 mg/L CaCO3, which is classified as hard. Hard water can cause limescale buildup. A water softener or filter jug may help.
Should I use a water filter in EX14?
EX14 water scored 9/10 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 EX14 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for EX14, 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 EX14?
The Environment Agency rated the Middle River Otter as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by water plants and algae and phosphate. 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. Its ecological rating has improved since the previous assessment. This is a rating of the river, not of tap water in EX14, 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
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- Best water softener UKHarvey, Kinetico, BWT, Monarch and Water2Buy compared
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- 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 EX14
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 EX14.