Water Hardness and Quality in Worcester
Supplied by Severn Trent Water · Worcester Zone 22
Worcester has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Worcester
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
241.5mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.34pH units
UK Average: 7.43 pH unitsBelow Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.46mg/l
UK Average: 0.45 mg/lAverage
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
26.94mg/l
UK Average: 16.9 mg/lWell Above Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.11µg/l
UK Average: 1.08 µg/lWell Below Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.09mg/l
UK Average: 0.19 mg/lBelow Average
LowAverageHigh
Water Hardness in Worcester
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
241.5mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Worcester has hard water at 241.5 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
- Worcester Zone 22
- Source Type
- Mixed
- Treatment Works
- Worcestershire Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Severn Trent Water
Frequently Asked Questions
Is the water hard in Worcester?▾
Yes, Worcester has hard water at 241.5 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Worcester tap water safe to drink?▾
Yes, tap water in Worcester 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 Worcester?▾
The water hardness in Worcester is 241.5 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Worcester?▾
Water in Worcester is supplied by Severn Trent Water, which serves the West Midlands region. The water comes from mixed sources and is treated at Worcestershire Treatment Works.