Water Hardness and Quality in Cannock
Supplied by Severn Trent Water · South Staffordshire Zone 9
Cannock has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Cannock
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
250.3mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.58pH units
UK Average: 7.43 pH unitsAbove Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.2mg/l
UK Average: 0.45 mg/lWell Below Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
33.93mg/l
UK Average: 16.9 mg/lWell Above Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.23µg/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 Cannock
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
250.3mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Cannock has hard water at 250.3 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
- South Staffordshire Zone 9
- 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 Cannock?▾
Yes, Cannock has hard water at 250.3 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Cannock tap water safe to drink?▾
Yes, tap water in Cannock 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 Cannock?▾
The water hardness in Cannock is 250.3 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Cannock?▾
Water in Cannock 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.