Water Hardness and Quality in Earlsdon
Supplied by Severn Trent Water · Coventry Zone 35
Earlsdon has moderately hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Earlsdon
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
182.5mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.33pH units
UK Average: 7.43 pH unitsBelow Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.31mg/l
UK Average: 0.45 mg/lBelow Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
16.54mg/l
UK Average: 16.9 mg/lAverage
LowAverageHigh
Lead
UK Standard: max 10 µg/l
1.89µg/l
UK Average: 1.08 µg/lWell Above Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.77mg/l
UK Average: 0.19 mg/lWell Above Average
LowAverageHigh
Water Hardness in Earlsdon
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
182.5mg/l CaCO₃Moderately Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Earlsdon 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
- Coventry Zone 35
- Source Type
- Mixed
- Treatment Works
- Warwickshire Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Severn Trent Water
Frequently Asked Questions
Is the water hard in Earlsdon?▾
Earlsdon has moderately hard water at 182.5 mg/l CaCO₃. Some limescale may occur but it is manageable with regular descaling.
Is Earlsdon tap water safe to drink?▾
Yes, tap water in Earlsdon 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 Earlsdon?▾
The water hardness in Earlsdon is 182.5 mg/l CaCO₃, which is classified as "Moderately Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Earlsdon?▾
Water in Earlsdon is supplied by Severn Trent Water, which serves the West Midlands region. The water comes from mixed sources and is treated at Warwickshire Treatment Works.