Water Hardness and Quality in Holmes
Supplied by Yorkshire Water · Thurcroft & Wickersley South (Rotherham)
Holmes has moderately hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Holmes
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
176.31mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.24pH units
UK Average: 7.43 pH unitsWell Below Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.25mg/l
UK Average: 0.45 mg/lWell Below Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
13.1mg/l
UK Average: 16.9 mg/lAverage
LowAverageHigh
Lead
UK Standard: max 10 µg/l
1.11µg/l
UK Average: 1.08 µg/lWell Above Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.08mg/l
UK Average: 0.19 mg/lBelow Average
LowAverageHigh
Water Hardness in Holmes
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
176.31mg/l CaCO₃Moderately Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Holmes 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
- Yorkshire Water
- Supply Zone
- Thurcroft & Wickersley South (Rotherham)
- Source Type
- Mixed
- Treatment Works
- Rotherham Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Yorkshire Water
Frequently Asked Questions
Is the water hard in Holmes?▾
Holmes has moderately hard water at 176.31 mg/l CaCO₃. Some limescale may occur but it is manageable with regular descaling.
Is Holmes tap water safe to drink?▾
Yes, tap water in Holmes is safe to drink. It is treated and tested by Yorkshire Water and meets all UK Drinking Water Inspectorate standards. All tested parameters are within regulatory limits.
What is the water hardness in Holmes?▾
The water hardness in Holmes is 176.31 mg/l CaCO₃, which is classified as "Moderately Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Holmes?▾
Water in Holmes is supplied by Yorkshire Water, which serves the Yorkshire and the Humber region. The water comes from mixed sources and is treated at Rotherham Treatment Works.