Water Hardness and Quality in Bilston
Supplied by Severn Trent Water · South Staffordshire Zone 25
Bilston has very hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Bilston
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
321.3mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.07pH units
UK Average: 7.43 pH unitsWell Below Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.35mg/l
UK Average: 0.45 mg/lBelow Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
38.59mg/l
UK Average: 16.9 mg/lWell Above Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.41µg/l
UK Average: 1.08 µg/lBelow 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 Bilston
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
321.3mg/l CaCO₃Very Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Bilston has hard water at 321.3 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 25
- 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 Bilston?▾
Yes, Bilston has hard water at 321.3 mg/l CaCO₃. This is classified as "Very Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Bilston tap water safe to drink?▾
Yes, tap water in Bilston 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 Bilston?▾
The water hardness in Bilston is 321.3 mg/l CaCO₃, which is classified as "Very Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Bilston?▾
Water in Bilston 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.