Water Hardness and Quality in Desborough
Supplied by Severn Trent Water · Harborough Zone 16
Desborough has very hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Desborough
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
306mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.32pH units
UK Average: 7.43 pH unitsBelow Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.1mg/l
UK Average: 0.45 mg/lWell Below Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
17.4mg/l
UK Average: 16.9 mg/lAverage
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.89µg/l
UK Average: 1.08 µg/lAbove Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.27mg/l
UK Average: 0.19 mg/lWell Above Average
LowAverageHigh
Water Hardness in Desborough
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
306mg/l CaCO₃Very Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Desborough has hard water at 306 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
- Severn Trent Water
- Supply Zone
- Harborough Zone 16
- Source Type
- Groundwater
- Treatment Works
- Leicestershire Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Severn Trent Water
Frequently Asked Questions
Is the water hard in Desborough?▾
Yes, Desborough has hard water at 306 mg/l CaCO₃. This is classified as "Very Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Desborough tap water safe to drink?▾
Yes, tap water in Desborough is safe to drink. It is treated and tested by Severn Trent Water and meets all UK Drinking Water Inspectorate standards. All tested parameters are within regulatory limits.
What is the water hardness in Desborough?▾
The water hardness in Desborough is 306 mg/l CaCO₃, which is classified as "Very Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Desborough?▾
Water in Desborough is supplied by Severn Trent Water, which serves the West Midlands region. The water comes from underground aquifers and is treated at Leicestershire Treatment Works.