Water Hardness in Farnham
Farnham has moderately hard water at 197 mg/l CaCO₃. This is close to the UK national average of 197.72 mg/l. Some limescale may occur but it is usually manageable.
197
mg/l CaCO₃
Moderately HardUK average: 197.72 mg/l
197
0 (Soft)200 (Hard)400+ (Very Hard)
What Does Moderately Hard Water Mean?
At 197 mg/l, Farnham has moderately hard water. This is a moderate level that may cause some limescale in high-use areas like kettles and showerheads.
Regular descaling of kettles and appliances should be sufficient to manage any buildup. A whole-house water softener is optional at this level but may still be beneficial.
Water Supplier
- Water Company
- Thames Water
- Supply Zone
- Guildford District West (G7)
- Source Type
- Groundwater
- Treatment Works
- Guildford District West Treatment Works
Full Water Quality Report for Farnham
See all 8 water quality parameters including pH, chlorine, lead, nitrate, fluoride and more.
Frequently Asked Questions
Is water hard in Farnham?▾
Farnham has moderately hard water at 197 mg/l CaCO₃, classified as "Moderately Hard". Some limescale may occur but it is usually manageable with regular cleaning.
What is the hardness of water in Farnham?▾
The water hardness in Farnham is 197 mg/l CaCO₃ (milligrams per litre of calcium carbonate). This is classified as "Moderately Hard" on the standard UK scale and is close to the national average of 197.72 mg/l. Water is supplied by Thames Water from underground aquifer sources.
Who supplies water to Farnham?▾
Water in Farnham is supplied by Thames Water, which covers the London and Thames Valley region. The water is sourced from underground aquifers (boreholes) and treated at Guildford District West Treatment Works before distribution.