Water Hardness in Darwen
Darwen has moderately soft water at 73.7 mg/l CaCO₃. This is below the UK national average of 197.72 mg/l. You are unlikely to experience significant limescale issues.
73.7
mg/l CaCO₃
Moderately SoftUK average: 197.72 mg/l
73.7
0 (Soft)200 (Hard)400+ (Very Hard)
What Does Moderately Soft Water Mean?
At just 73.7 mg/l, Darwen has moderately soft water. This means very little dissolved calcium and magnesium, so limescale buildup is minimal.
Soft water lathers easily with soap, is gentler on skin and hair, and causes less wear on appliances. A water softener is not needed at this hardness level.
Water Supplier
- Water Company
- United Utilities
- Supply Zone
- Audley & Queen's Park
- Source Type
- Mixed
- Treatment Works
- Blackburn with Darwen Treatment Works
Full Water Quality Report for Darwen
See all 5 water quality parameters including pH, chlorine, lead, nitrate, fluoride and more.
Frequently Asked Questions
Is water hard in Darwen?▾
No, Darwen has soft water at 73.7 mg/l CaCO₃, classified as "Moderately Soft". You are unlikely to experience limescale issues.
What is the hardness of water in Darwen?▾
The water hardness in Darwen is 73.7 mg/l CaCO₃ (milligrams per litre of calcium carbonate). This is classified as "Moderately Soft" on the standard UK scale and is below the national average of 197.72 mg/l. Water is supplied by United Utilities from mixed sources.
Who supplies water to Darwen?▾
Water in Darwen is supplied by United Utilities, which covers the North West England region. The water is sourced from mixed sources and treated at Blackburn with Darwen Treatment Works before distribution.