Water Hardness and Quality in Oldbury
Supplied by Severn Trent Water · Dudley Zone 28
Oldbury has moderately hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Oldbury
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
199.4mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.96pH units
UK Average: 7.43 pH unitsWell Above Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.53mg/l
UK Average: 0.45 mg/lAbove Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
22mg/l
UK Average: 16.9 mg/lAbove 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
0.95mg/l
UK Average: 0.19 mg/lWell Above Average
LowAverageHigh
Water Hardness in Oldbury
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
199.4mg/l CaCO₃Moderately Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Oldbury has moderately hard water. You may notice some limescale buildup in your kettle and on taps over time. A regular descaling routine should be sufficient for most households.
Water Source Information
- Water Company
- Severn Trent Water
- Supply Zone
- Dudley Zone 28
- 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 Oldbury?▾
Oldbury has moderately hard water at 199.4 mg/l CaCO₃. Some limescale may occur but it is manageable with regular descaling.
Is Oldbury tap water safe to drink?▾
Yes, tap water in Oldbury 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 Oldbury?▾
The water hardness in Oldbury is 199.4 mg/l CaCO₃, which is classified as "Moderately Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Oldbury?▾
Water in Oldbury 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.