Water Hardness and Quality in Matlock
Supplied by Severn Trent Water · North East Derbyshire Zone 22
Matlock has moderately hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Matlock
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
192.5mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.63pH units
UK Average: 7.43 pH unitsWell Above 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
11.08mg/l
UK Average: 16.9 mg/lBelow Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.44µg/l
UK Average: 1.08 µg/lBelow Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.55mg/l
UK Average: 0.19 mg/lWell Above Average
LowAverageHigh
Water Hardness in Matlock
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
192.5mg/l CaCO₃Moderately Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Matlock has moderately hard water. You may notice some limescale buildup in your kettle and on taps over time. A regular descaling routine should be sufficient for most households.
Water Source Information
- Water Company
- Severn Trent Water
- Supply Zone
- North East Derbyshire Zone 22
- Source Type
- Mixed
- Treatment Works
- Derby Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Severn Trent Water
Frequently Asked Questions
Is the water hard in Matlock?▾
Matlock has moderately hard water at 192.5 mg/l CaCO₃. Some limescale may occur but it is manageable with regular descaling.
Is Matlock tap water safe to drink?▾
Yes, tap water in Matlock 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 Matlock?▾
The water hardness in Matlock is 192.5 mg/l CaCO₃, which is classified as "Moderately Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Matlock?▾
Water in Matlock is supplied by Severn Trent Water, which serves the West Midlands region. The water comes from mixed sources and is treated at Derby Treatment Works.