Water Hardness and Quality in St. Mary's
Supplied by United Utilities · St. Mary's
St. Mary's has moderately soft water with quality that meets all UK drinking water standards.
Check a specific postcode in St. Mary's
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
51.7mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Below Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.42pH units
UK Average: 7.43 pH unitsAverage
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.98mg/l
UK Average: 0.45 mg/lWell Above Average
LowAverageHigh
Water Hardness in St. Mary's
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
51.7mg/l CaCO₃Moderately Soft
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
St. Mary's 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
- St. Mary's
- Source Type
- Reservoir
- Treatment Works
- Bury Treatment Works
- Last Tested
- 2024-12-31
- Data Source
- United Utilities
Frequently Asked Questions
Is the water hard in St. Mary's?▾
No, St. Mary's has soft water at just 51.7 mg/l CaCO₃. You are unlikely to experience significant limescale issues.
Is St. Mary's tap water safe to drink?▾
Yes, tap water in St. Mary's 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 St. Mary's?▾
The water hardness in St. Mary's is 51.7 mg/l CaCO₃, which is classified as "Moderately Soft". This is below the UK national average of 170 mg/l.
Who supplies water to St. Mary's?▾
Water in St. Mary's is supplied by United Utilities, which serves the North West England region. The water comes from upland reservoirs and is treated at Bury Treatment Works.