Tap water in LN7, West LindseySafe to drink.Very hard.
Supplied by Anglian Water. 538 samples, 18 substances, latest on 11 December 2024. 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 310 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 LN7.
Osmio PRO-III Ultimate Whole House
£499typical price
Removes nitrate, the result that stood out in LN7.
We earn a commission if you buy through these links, at no extra cost to you. It never changes which product we put first. How we make money
What's in a glass of LN7 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 76% of it. 14 of 16 substances used under a quarter of theirs.
- Nitrate76%
- Fluoride66%
- Iron11%
- Trihalomethanes9%
- Nickel8%
- Nitrite6%
- Aluminium6%
- Manganese6%
- Turbidity5%
- Arsenic3%
- Selenium2%
- Lead2%
- Antimony2%
- Chromium2%
- Copper2%
- Cadmium<1%
- E. coli none found
- Coliform Bacteria none found
All 18 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Nitrate | 38 mg/L | 50 mg/L | 76% |
| E. coli | 0 count/100ml | Must be zero | None found |
| Coliform Bacteria | 0 count/100ml | Must be zero | None found |
| Cadmium | 0.00002 mg/L | 0.005 mg/L | <1% |
| Chromium | 0.00076 mg/L | 0.05 mg/L | 2% |
| Nickel | 0.00151 mg/L | 0.02 mg/L | 8% |
| Lead | 0.00016 mg/L | 0.01 mg/L | 2% |
| Antimony | 0.00008 mg/L | 0.005 mg/L | 2% |
| Selenium | 0.00072 mg/L | 0.04 mg/L | 2% |
| Trihalomethanes | 0.0095 mg/L | 0.1 mg/L | 9% |
| Turbidity | 0.21 NTU | 4 NTU | 5% |
| Nitrite | 0.03 mg/L | 0.5 mg/L | 6% |
| Aluminium | 0.012 mg/L | 0.2 mg/L | 6% |
| Iron | 0.021 mg/L | 0.2 mg/L | 11% |
| Manganese | 0.003 mg/L | 0.05 mg/L | 6% |
| Copper | 0.03 mg/L | 2 mg/L | 2% |
| Fluoride | 0.99 mg/L | 1.5 mg/L | 66% |
| Arsenic | 0.00026 mg/L | 0.01 mg/L | 3% |
310mg 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 LN7
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Your river is the Caistor Canal Catchment (trib of Ancholme), rated poor
The Environment Agency rated the Caistor Canal Catchment (trib of Ancholme) as poor for ecological health in its 2025 assessment, meaning the river is badly affected, with much of the expected wildlife missing. 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.
None of this is a test of your tap water. Environment Agency record · River health across England
LN7 in short
Tap water in LN7 (West Lindsey) is supplied by Anglian Water in the West Lindsey Central zone and scores 8.9 out of 10, against an England and Wales average of 9.0. 1 of 18 tested substances was close to or over a limit. The latest sample is from 11 December 2024.
- Nitrate is within its legal limit but flagged, at 76% 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
- The lowest score of the 5 areas tested in West LindseyLN7 scores 8.9 out of 10. The best in West Lindsey, LN3, scores 9.5.
- Among the hardest water in the country at 310 mg/LVery hard starts at 250 mg/L. At this level kettles scale up within weeks and a softener is a normal purchase in LN7. How hardness is measured
Questions about LN7 water
Is LN7 tap water safe to drink?
Based on the latest tests, LN7 (West Lindsey) water scores 8.9/10, which is safe. 1 of 18 tested contaminants exceeded recommended levels. Water is supplied by Anglian Water.
What contaminants are in LN7 water?
We tested 18 contaminants in LN7 water. 1 were flagged, including Nitrate.
Who supplies water in LN7?
LN7 (West Lindsey) is supplied by Anglian Water. You can view their full profile and compliance data on our supplier page.
Is LN7 water hard or soft?
Water in LN7 (West Lindsey) has a hardness of 310 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 LN7?
With 1 contaminant above recommended levels in LN7, a water filter could help. A filter jug or under-sink filter can reduce most common contaminants. See our filter recommendations for your area.
Are there PFAS forever chemicals in LN7 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for LN7, 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 LN7?
The Environment Agency rated the Caistor Canal Catchment (trib of Ancholme) as poor for ecological health in its 2025 assessment, meaning the river is badly affected, with much of the expected wildlife missing. 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. This is a rating of the river, not of tap water in LN7, 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?
- 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
Nitrate levelsHow to test your waterBest water filtersFilter shower headsWater testing kitsUK water rankingsWater hardness checkerWater hardness map
River and groundwater readings near LN7
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 LN7.