Southwark, England
Southwark
Your water is safe
We checked 22 things and found 1 worth knowing about
GoodYour water is safe
We checked 22 things and found 1 worth knowing about
GoodBased on drinking water tests, your water in SE22 (Southwark) is supplied by Thames Water. Based on the latest data (last sampled 2025-12-31), 22 things were tested with 1 exceeding recommended levels. The overall water quality score for SE22 is 8.7/10.
Last sampled 2025-12-31 · 4,528 samples
Results from drinking water tests in Southwark.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Nitrite | 0.6 mg/L | 0.5 mg/L | 3 mg/L | Over limit |
Source: Stream Water Data Portal
Rivers, groundwater and reservoirs near SE22. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| pH | 8.2 pH | — | — | Safe |
| Temperature | 9.1 °C | — | — | Safe |
| Ammonia | 0.001 mg/L | 0.5 mg/L | — | Safe |
| Nitrate | 5.1 mg/L | 50 mg/L | 50 mg/L | Safe |
| Phosphate | 0.239 mg/L | — | — | Safe |
| Dissolved Oxygen | 11 mg/L | — | — | Safe |
Source: Environment Agency
We'll email you when water quality data changes for SE22.