Water Hardness and Quality in Cock Alley
Supplied by Severn Trent Water · Chesterfield Zone 5
Cock Alley has moderately soft water with quality that meets all UK drinking water standards.
Check a specific postcode in Cock Alley
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
68.3mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Below Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
8.02pH units
UK Average: 7.43 pH unitsWell Above Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.32mg/l
UK Average: 0.45 mg/lBelow Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
5.99mg/l
UK Average: 16.9 mg/lWell Below Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.28µg/l
UK Average: 1.08 µg/lBelow Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.08mg/l
UK Average: 0.19 mg/lBelow Average
LowAverageHigh
Water Hardness in Cock Alley
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
68.3mg/l CaCO₃Moderately Soft
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Cock Alley has soft water. This means less limescale buildup in your appliances, less soap needed for cleaning, and generally fewer issues with mineral deposits. You are unlikely to need a water softener.
Water Source Information
- Water Company
- Severn Trent Water
- Supply Zone
- Chesterfield Zone 5
- 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 Cock Alley?▾
No, Cock Alley has soft water at just 68.3 mg/l CaCO₃. You are unlikely to experience significant limescale issues.
Is Cock Alley tap water safe to drink?▾
Yes, tap water in Cock Alley 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 Cock Alley?▾
The water hardness in Cock Alley is 68.3 mg/l CaCO₃, which is classified as "Moderately Soft". This is below the UK national average of 170 mg/l.
Who supplies water to Cock Alley?▾
Water in Cock Alley 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.