Water Hardness and Quality in Oldham
Supplied by United Utilities · Alexandra
Oldham has soft water with quality that meets all UK drinking water standards.
Check a specific postcode in Oldham
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
46mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Below Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.21pH units
UK Average: 7.43 pH unitsWell Below Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.95mg/l
UK Average: 0.45 mg/lWell Above Average
LowAverageHigh
Water Hardness in Oldham
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
46mg/l CaCO₃Soft
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Oldham has soft water. This means less limescale buildup in your appliances, less soap needed for cleaning, and generally fewer issues with mineral deposits. You are unlikely to need a water softener.
Water Source Information
- Water Company
- United Utilities
- Supply Zone
- Alexandra
- Source Type
- Reservoir
- Treatment Works
- Oldham Treatment Works
- Last Tested
- 2024-12-31
- Data Source
- United Utilities
Frequently Asked Questions
Is the water hard in Oldham?▾
No, Oldham has soft water at just 46 mg/l CaCO₃. You are unlikely to experience significant limescale issues.
Is Oldham tap water safe to drink?▾
Yes, tap water in Oldham is safe to drink. It is treated and tested by United Utilities and meets all UK Drinking Water Inspectorate standards. All tested parameters are within regulatory limits.
What is the water hardness in Oldham?▾
The water hardness in Oldham is 46 mg/l CaCO₃, which is classified as "Soft". This is below the UK national average of 170 mg/l.
Who supplies water to Oldham?▾
Water in Oldham is supplied by United Utilities, which serves the North West England region. The water comes from upland reservoirs and is treated at Oldham Treatment Works.