Tap water in HU10, East Riding of YorkshireSafe to drink.Very hard.
Supplied by Yorkshire Water. 854 samples, 25 substances, latest on 24 September 2026. Everything is inside the legal limit. One result, nitrate, sits close to the line.
8.9 / 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 366 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.
Waterdrop G3P600 Reverse Osmosis
£550typical price
Removes nitrate, the result that stood out in HU10.
Osmio PRO-III Ultimate Whole House
£499typical price
Removes nitrate, the result that stood out in HU10.
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What's in a glass of HU10 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 85% of it. 19 of 20 substances used under a quarter of theirs.
- Nitrate85%
- Colour15%
- Lead11%
- Nickel9%
- Trihalomethanes8%
- Fluoride7%
- Aluminium6%
- Boron5%
- Mercury4%
- Iron3%
- Turbidity3%
- Manganese2%
- Bromate2%
- Arsenic2%
- Nitrite2%
- Antimony1%
- Selenium1%
- Cadmium<1%
- Copper<1%
- Chromium<1%
- Coliform Bacteria none found
- E. coli none found
- Phosphate 0.807 mg/L
- Conductivity 685 µS/cm
All 25 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Nitrate | 42.4 mg/L | 50 mg/L | 85% |
| Coliform Bacteria | 0 count/100ml | Must be zero | None found |
| E. coli | 0 count/100ml | Must be zero | None found |
| Phosphate | 0.807 mg/L | No legal limit | – |
| Conductivity | 685 µS/cm | No legal limit | – |
| Turbidity | 0.11 NTU | 4 NTU | 3% |
| Colour | 3 mg/L Pt/Co | 20 mg/L Pt/Co | 15% |
| Iron | 0.00629 mg/L | 0.2 mg/L | 3% |
| Manganese | 0.00101 mg/L | 0.05 mg/L | 2% |
| Aluminium | 0.0111 mg/L | 0.2 mg/L | 6% |
| Mercury | 0.00004 mg/L | 0.001 mg/L | 4% |
| Trihalomethanes | 0.00822 mg/L | 0.1 mg/L | 8% |
| Fluoride | 0.1 mg/L | 1.5 mg/L | 7% |
| Copper | 0.0122 mg/L | 2 mg/L | <1% |
| Nickel | 0.00185 mg/L | 0.02 mg/L | 9% |
| Chromium | 0.00019 mg/L | 0.05 mg/L | <1% |
| Nitrite | 0.008 mg/L | 0.5 mg/L | 2% |
| Selenium | 0.00043 mg/L | 0.04 mg/L | 1% |
| Arsenic | 0.00018 mg/L | 0.01 mg/L | 2% |
| Antimony | 0.000056 mg/L | 0.005 mg/L | 1% |
| Cadmium | 0.000031 mg/L | 0.005 mg/L | <1% |
| Boron | 0.045 mg/L | 1 mg/L | 5% |
| Lead | 0.0011 mg/L | 0.01 mg/L | 11% |
| Bromate | 0.0002 mg/L | 0.01 mg/L | 2% |
| Hardness (as CaCO3) | 370 mg/L | No legal limit | – |
366mg 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 HU10
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Your river is the Fleet Drain, rated moderate
The Environment Agency rated the Fleet Drain 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 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.
None of this is a test of your tap water. Environment Agency record · River health across England
103
forever-chemical detections in nearby rivers and groundwater
At 3 sites. The highest was 6:2 FTSA at 0.053 µg/L, at Poplar Nurseries 2/26/32/343, 5.4 km away, in November 2023. These are river and borehole samples, not tests of your tap water.
Every PFAS sample around Hull · Which filters remove PFAS · PFAS explained
HU10 in short
Tap water in HU10 (East Riding of Yorkshire) is supplied by Yorkshire Water in the East Riding of Yorkshire Central zone and scores 8.9 out of 10, against an England and Wales average of 9.0. 1 of 25 tested substances was close to or over a limit. The latest sample is from 24 September 2026.
- Nitrate is within its legal limit but flagged, at 85% 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
- Among the hardest water in the country at 366 mg/LVery hard starts at 250 mg/L. At this level kettles scale up within weeks and a softener is a normal purchase in HU10. How hardness is measured
- 12th cleanest of 18 areas tested in HullSquarely mid-table for Hull, between DN14 on 9.2 and HU16 on 8.5. Every area in Hull
Questions about HU10 water
Is HU10 tap water safe to drink?
Based on the latest tests, HU10 (East Riding of Yorkshire) water scores 8.9/10, which is safe. 1 of 25 tested contaminants exceeded recommended levels. Water is supplied by Yorkshire Water.
What contaminants are in HU10 water?
We tested 25 contaminants in HU10 water. 1 were flagged, including Nitrate. PFAS (forever chemicals) were also measured in rivers and groundwater within 10 km, though not in the tap-water tests themselves.
Who supplies water in HU10?
HU10 (East Riding of Yorkshire) is supplied by Yorkshire Water. You can view their full profile and compliance data on our supplier page.
Is HU10 water hard or soft?
Water in HU10 (East Riding of Yorkshire) has a hardness of 366 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 HU10?
With 1 contaminant above recommended levels in HU10, a water filter could help. A reverse osmosis or activated carbon filter is recommended for PFAS removal. See our filter recommendations for your area.
Are there PFAS forever chemicals in HU10 water?
The tap-water tests we hold for HU10 do not include a PFAS result. Environment Agency monitoring found PFAS in 103 river and groundwater samples from 3 sites within 10 km of HU10, the highest being 6:2 FTSA at 0.053 µg/L about 5.4 km away. These are environmental samples, not tests of tap water. The UK currently has no legal limit for PFAS in drinking water; the Drinking Water Inspectorate uses a 0.1 µg/L guideline for individual compounds. Reverse osmosis filters can reduce PFAS levels.
How clean is the river near HU10?
The Environment Agency rated the Fleet Drain 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 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. This is a rating of the river, not of tap water in HU10, which is treated before it reaches homes.
Keep reading
- Best Filter for PFAS RemovalThe filters with independent certification to remove forever chemicals
- PFAS Forever ChemicalsWhat PFAS are and how to reduce your exposure at home
- 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?
- Best Water Filters UKEvery filter type compared on what it actually removes
- 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
PFAS explainedNitrate levelsHow to test your waterBest water filtersFilter shower headsWater testing kitsAll of HullUK water rankingsWater hardness checkerWater hardness map
River and groundwater readings near HU10
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.
| Substance | Reading | Drinking water limit |
|---|---|---|
| Manganese | 2.24 mg/L | 0.05 mg/L |
| Iron | 6.94 mg/L | 0.2 mg/L |
| Aluminium | 0.176 mg/L | 0.2 mg/L |
| pH | 7.48 pH | None |
| Temperature | 8.7 °C | None |
| Conductivity | 808 µS/cm | None |
| Ammonia | 0.036 mg/L | 0.5 mg/L |
| Nitrate | 9.6 mg/L | 50 mg/L |
| Nitrite | 0.011 mg/L | 0.5 mg/L |
| Phosphate | 0.045 mg/L | None |
| Dissolved Oxygen | 11 mg/L | None |
| Lead | 0.00399 mg/L | 0.01 mg/L |
| Hardness (as CaCO3) | 288 mg/L | None |
| Chromium | 0.000698 mg/L | 0.05 mg/L |
| Copper | 0.0992 mg/L | 2 mg/L |
| Zinc | 0.0665 mg/L | None |
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