Water Hardness and Quality in Wirksworth
Supplied by Severn Trent Water · Amber Valley Zone 21
Wirksworth has slightly hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Wirksworth
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
149.9mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Below Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.47pH units
UK Average: 7.43 pH unitsAverage
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.45mg/l
UK Average: 0.45 mg/lAverage
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
7.48mg/l
UK Average: 16.9 mg/lBelow Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
1.85µg/l
UK Average: 1.08 µg/lWell Above Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.28mg/l
UK Average: 0.19 mg/lWell Above Average
LowAverageHigh
Water Hardness in Wirksworth
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
149.9mg/l CaCO₃Slightly Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Wirksworth 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
- Amber Valley Zone 21
- Source Type
- Reservoir
- Treatment Works
- Derby Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Severn Trent Water
Frequently Asked Questions
Is the water hard in Wirksworth?▾
Wirksworth has moderately hard water at 149.9 mg/l CaCO₃. Some limescale may occur but it is manageable with regular descaling.
Is Wirksworth tap water safe to drink?▾
Yes, tap water in Wirksworth 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 Wirksworth?▾
The water hardness in Wirksworth is 149.9 mg/l CaCO₃, which is classified as "Slightly Hard". This is below the UK national average of 170 mg/l.
Who supplies water to Wirksworth?▾
Water in Wirksworth is supplied by Severn Trent Water, which serves the West Midlands region. The water comes from upland reservoirs and is treated at Derby Treatment Works.