Mole Valley, England
Mole Valley
Your water is safe
We checked 10 things and found nothing to worry about
ExcellentYour water is safe
We checked 10 things and found nothing to worry about
ExcellentBased on environmental water monitoring, your water in KT21 (Mole Valley) is supplied by Thames Water. Based on the latest data (last sampled 2025-01-22), 10 things were tested with 0 exceeding recommended levels. The overall water quality score for KT21 is 9.8/10.
Last sampled 2025-01-22 · Tap water tests not yet available for Thames Water
This data is 14 months old. The Environment Agency hasn't sampled near KT21 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 |
|---|---|---|---|---|
| pH | 7.78 pH | — | — | Safe |
| Temperature | 6.9 °C | — | — | Safe |
| Conductivity | 540 µS/cm | — | — | Safe |
| Ammonia | 0.032 mg/L | 0.5 mg/L | — | Safe |
| Nitrate | 1.2 mg/L | 50 mg/L | 50 mg/L | Safe |
| Nitrite | 0.0043 mg/L | 0.5 mg/L | 3 mg/L | Safe |
Source: Environment Agency
General-purpose filters for common UK tap water concerns.

Our pick for KT21
BRITA Marella XL + MAXTRA PRO
Jug Filter · TUV SUD
A solid all-round filter for KT21. Removes Chlorine, Lead, Copper and more. No installation needed.
£25
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
Rivers, groundwater and reservoirs near KT21. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| pH | 7.78 pH | — | — | Safe |
| Temperature | 6.9 °C | — | — | Safe |
| Conductivity | 540 µS/cm | — | — | Safe |
| Ammonia | 0.032 mg/L | 0.5 mg/L | — | Safe |
| Nitrate | 1.2 mg/L | 50 mg/L | 50 mg/L | Safe |
| Nitrite | 0.0043 mg/L | 0.5 mg/L | 3 mg/L | Safe |
Source: Environment Agency
We'll email you when water quality data changes for KT21.