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Test Valley, England
Your water in SO20
Test Valley
Your water is safe
We checked 18 things and found 1 worth knowing about
ExcellentYour water is safe
We checked 18 things and found 1 worth knowing about
ExcellentTap water in SO20 (Test Valley, Test Valley) is supplied by Southern Water and scored 9.1 out of 10 for safety based on 18 tested parameters. 1 contaminant exceeded recommended safe levels: Nitrate. Data is from 126 samples collected up to 2025-12-02, sourced from Southern Water via the Stream Water Data Portal.
Drinking water testsHow we score
Last sampled 2025-12-02 · 126 samples
What’s in your tap water
Results from drinking water tests in Test Valley.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Nitrate | 41 mg/L | 50 mg/L | 50 mg/L | Watch |
Source: Stream Water Data Portal
What removes these from your water
1 contaminant flagged in SO20. These filters are matched to what was found in your water.
Our pick for SO20
Waterdrop G3P600 Reverse Osmosis
Reverse Osmosis · NSF/ANSI 58, NSF/ANSI 372
The Waterdrop G3P600 Reverse Osmosis is certified to remove Nitrate, which was flagged in SO20. Fits under your kitchen sink for filtered water on tap.
Removes from your water
Nitrate
Check price & reviews
£399
4.6/5
2 more options
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
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Related guides
Learn more about the water quality issues relevant to this area.
Environmental water nearby
Rivers, groundwater and reservoirs near SO20. This is environmental monitoring — not your tap water.
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