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Wandsworth, England
Your water in SW4
Wandsworth
Your water is safe
We checked 22 things and found 2 worth knowing about
GoodYour water is safe
We checked 22 things and found 2 worth knowing about
GoodTap water in SW4 (Wandsworth, Wandsworth) is supplied by Thames Water and scored 8.1 out of 10 for safety based on 22 tested parameters. 2 contaminants exceeded recommended safe levels: Nitrite, Lead. Data is from 4,831 samples collected up to 2025-12-31, sourced from Thames Water via the Stream Water Data Portal.
Drinking water testsHow we score
Last sampled 2025-12-31 · 4,831 samples
What’s in your tap water
Results from drinking water tests in Wandsworth.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Nitrite | 0.59 mg/L | 0.5 mg/L | 3 mg/L | Over limit |
| Lead | 0.0105 mg/L | 0.01 mg/L | 0.01 mg/L | Over limit |
Source: Stream Water Data Portal
What removes these from your water
2 contaminants flagged in SW4. These filters are matched to what was found in your water.
Our pick for SW4
Doulton HIP Ultracarb
Under-Sink Filter · NSF/ANSI 42, NSF/ANSI 53
The Doulton HIP Ultracarb is certified to remove Lead, which was flagged in SW4. Fits under your kitchen sink for filtered water on tap.
Removes from your water
Lead
Check price & reviews
£120
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
Shower filters
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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 SW4. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Iron | 3.9 mg/L | 0.2 mg/L | 0.3 mg/L | Over limit |
Source: Environment Agency
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