Water Hardness and Quality in Cambridge
Supplied by United Utilities · Cambridge
Cambridge has very hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Cambridge
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
300.8mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.8pH units
UK Average: 7.43 pH unitsWell Above Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.52mg/l
UK Average: 0.45 mg/lAbove Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
7.49mg/l
UK Average: 16.9 mg/lBelow Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
2.75µg/l
UK Average: 1.08 µg/lWell Above Average
LowAverageHigh
Water Hardness in Cambridge
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
300.8mg/l CaCO₃Very Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Cambridge has hard water at 300.8 mg/l. You will likely experience significant limescale buildup in kettles, boilers, and on bathroom surfaces. Many residents in your area use water softeners or anti-limescale products.
Water Source Information
- Water Company
- United Utilities
- Supply Zone
- Cambridge
- Source Type
- Groundwater
- Treatment Works
- Sefton Treatment Works
- Last Tested
- 2024-12-31
- Data Source
- United Utilities
Frequently Asked Questions
Is the water hard in Cambridge?▾
Yes, Cambridge has hard water at 300.8 mg/l CaCO₃. This is classified as "Very Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Cambridge tap water safe to drink?▾
Yes, tap water in Cambridge is safe to drink. It is treated and tested by United Utilities and meets all UK Drinking Water Inspectorate standards. All tested parameters are within regulatory limits.
What is the water hardness in Cambridge?▾
The water hardness in Cambridge is 300.8 mg/l CaCO₃, which is classified as "Very Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Cambridge?▾
Water in Cambridge is supplied by United Utilities, which serves the North West England region. The water comes from underground aquifers and is treated at Sefton Treatment Works.