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North Yorkshire, England
North Yorkshire
Your water is mostly fine
We checked 14 things and found 3 worth knowing about
FairYour water is mostly fine
We checked 14 things and found 3 worth knowing about
FairUnknown
Your water company
Tap water in YO21 (North Yorkshire, North Yorkshire) is supplied by Unknown and scored 6.6 out of 10 for safety based on 14 tested parameters. 3 contaminants exceeded recommended safe levels: Ammonia, Lead, Nickel. Data is from samples last taken 2012-08-02, sourced from the Environment Agency Water Quality Archive.
Last sampled 2012-08-02 · Tap water tests not yet available for Unknown
This data is over 13 years old. The Environment Agency hasn't sampled near YO21 recently. Scores reflect the most recent available data.
Here’s what government tests found in water near you.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Ammonia | 0.479 mg/L | 0.5 mg/L | — | Watch |
| Lead | 0.0129 mg/L | 0.01 mg/L | 0.01 mg/L | Over limit |
| Nickel | 0.0164 mg/L | 0.02 mg/L | 0.07 mg/L | Watch |
Source: Environment Agency
3 contaminants flagged in YO21. These filters are matched to what was found in your water.

Our pick for YO21
Waterdrop G3P600 Reverse Osmosis
Reverse Osmosis · NSF/ANSI 58, NSF/ANSI 372
Removes both Lead and Nickel — the two contaminants flagged in YO21. Fits under your kitchen sink for filtered water on tap.
Removes from your water
£399
Recommendations matched to your area's water data, not sponsorship. We may earn a commission at no extra cost to you. Affiliate disclosure · Full filter guide
Shower filters
Remove chlorine for better skin and hair
Test your water
Confirm exactly what's in your pipes
Learn more about the water quality issues relevant to this area.
Rivers, groundwater and reservoirs near YO21. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Ammonia | 0.479 mg/L | 0.5 mg/L | — | Watch |
| Lead | 0.0129 mg/L | 0.01 mg/L | 0.01 mg/L | Over limit |
| Nickel | 0.0164 mg/L | 0.02 mg/L | 0.07 mg/L | Watch |
Source: Environment Agency
We'll email you when water quality data changes for YO21.
Your water supplier
Unknown