Water Hardness and Quality in Coventry Zone 27
Supplied by Severn Trent Water · Coventry Zone 27
Coventry Zone 27 has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Coventry Zone 27
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
278.7mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.39pH units
UK Average: 7.43 pH unitsAverage
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
22.93mg/l
UK Average: 16.9 mg/lAbove Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.38µg/l
UK Average: 1.08 µg/lBelow Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
1mg/l
UK Average: 0.19 mg/lWell Above Average
LowAverageHigh
Water Hardness in Coventry Zone 27
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
278.7mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Coventry Zone 27 has hard water at 278.7 mg/l. You will likely experience significant limescale buildup in kettles, boilers, and on bathroom surfaces. Many residents in your area use water softeners or anti-limescale products.
Water Source Information
- Water Company
- Severn Trent Water
- Supply Zone
- Coventry Zone 27
- Source Type
- Groundwater
- Treatment Works
- Warwickshire Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Severn Trent Water
Frequently Asked Questions
Is the water hard in Coventry Zone 27?▾
Yes, Coventry Zone 27 has hard water at 278.7 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Coventry Zone 27 tap water safe to drink?▾
Yes, tap water in Coventry Zone 27 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 Coventry Zone 27?▾
The water hardness in Coventry Zone 27 is 278.7 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Coventry Zone 27?▾
Water in Coventry Zone 27 is supplied by Severn Trent Water, which serves the West Midlands region. The water comes from underground aquifers and is treated at Warwickshire Treatment Works.