London Tap Water
Water provider: Thames Water (London and Thames Valley)
Filter guidance
We do not have enough dated, utility-specific measurements to select a filter for this address. Check the current utility report or test your tap, then choose a model certified for the measured contaminant.
What the reviewed source lists
Trihalomethanes (THMs)
Listed for context, not verified as a local measurement
Source wording: ~30 ug/L
Stated limit: 100 ug/L
Chlorine
Listed for context, not verified as a local measurement
Source wording: ~0.5 mg/L
Lead
Listed for context, not verified as a local measurement
Source wording: below PCV; pre-1970 homes at risk
Nitrates
Listed for context, not verified as a local measurement
Source wording: ~30 mg/L
Stated limit: 50 mg/L
Source and date
Thames Water Quality Report (2023). Last reviewed 2024-11-01.
This reflects the most recent public water quality report available when we last reviewed this utility. Verify current conditions with the utility.