Winchester, England
Your water in PO15
Winchester
Your water is safe
We checked 6 things and found nothing to worry about
ExcellentYour water is safe
We checked 6 things and found nothing to worry about
ExcellentBased on drinking water tests, your water in PO15 (Winchester) is supplied by Southern Water. Based on the latest data (last sampled 2025-10-04), 6 things were tested with 0 exceeding recommended levels. The overall water quality score for PO15 is 9.5/10.
Drinking water testsHow we score
Last sampled 2025-10-04 · 231 samples
What’s in your tap water
Results from drinking water tests in Winchester.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Colour | 3 mg/L Pt/Co | 20 mg/L Pt/Co | — | Safe |
| Turbidity | 0.11 NTU | 4 NTU | 4 NTU | Safe |
| pH | 7.45 pH | — | — | Safe |
| Aluminium | 0.00837 mg/L | 0.2 mg/L | — | Safe |
| Iron | 0.0117 mg/L | 0.2 mg/L | 0.3 mg/L | Safe |
| Manganese | 0.00154 mg/L | 0.05 mg/L | 0.08 mg/L | Safe |
Source: Stream Water Data Portal
Filters for PO15
General-purpose filters for common UK tap water concerns.
Our pick for PO15
BRITA Marella XL + MAXTRA PRO
Jug Filter · TUV SUD
A solid all-round filter for PO15. Removes Chlorine, Lead, Copper and more. No installation needed.
Check price & reviews
£25
4.5/5
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
Environmental water nearby
Rivers, groundwater and reservoirs near PO15. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| pH | 8.13 pH | — | — | Safe |
| Conductivity | 660 µS/cm | — | — | Safe |
| Ammonia | 0.12 mg/L | 0.5 mg/L | — | Safe |
| Phosphate | 0.04 mg/L | — | — | Safe |
| Temperature | 4.5 °C | — | — | Safe |
| Nitrate | 6.96 mg/L | 50 mg/L | 50 mg/L | Safe |
Source: Environment Agency
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