Water Hardness and Quality in Coundon
Supplied by Severn Trent Water · Coventry Zone 13
Coundon has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Coundon
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
281.7mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Above Average
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
0.29mg/l
UK Average: 0.45 mg/lBelow Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
20.38mg/l
UK Average: 16.9 mg/lAbove Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.13µg/l
UK Average: 1.08 µg/lWell Below Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.84mg/l
UK Average: 0.19 mg/lWell Above Average
LowAverageHigh
Water Hardness in Coundon
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
281.7mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Coundon has hard water at 281.7 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 13
- 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 Coundon?▾
Yes, Coundon has hard water at 281.7 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Coundon tap water safe to drink?▾
Yes, tap water in Coundon 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 Coundon?▾
The water hardness in Coundon is 281.7 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Coundon?▾
Water in Coundon 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.