Water Hardness and Quality in Leek
Supplied by Severn Trent Water · Staffordshire Moorlands Zone 6
Leek has moderately hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Leek
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
175.5mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
8.18pH units
UK Average: 7.43 pH unitsWell Above Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.36mg/l
UK Average: 0.45 mg/lBelow Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
9.7mg/l
UK Average: 16.9 mg/lBelow Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.1µg/l
UK Average: 1.08 µg/lWell Below Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.08mg/l
UK Average: 0.19 mg/lBelow Average
LowAverageHigh
Water Hardness in Leek
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
175.5mg/l CaCO₃Moderately Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Leek 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
- Staffordshire Moorlands Zone 6
- Source Type
- Mixed
- Treatment Works
- Staffordshire Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Severn Trent Water
Frequently Asked Questions
Is the water hard in Leek?▾
Leek has moderately hard water at 175.5 mg/l CaCO₃. Some limescale may occur but it is manageable with regular descaling.
Is Leek tap water safe to drink?▾
Yes, tap water in Leek 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 Leek?▾
The water hardness in Leek is 175.5 mg/l CaCO₃, which is classified as "Moderately Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Leek?▾
Water in Leek is supplied by Severn Trent Water, which serves the West Midlands region. The water comes from mixed sources and is treated at Staffordshire Treatment Works.