Water Hardness and Quality in Dunsfold
Supplied by Thames Water · Chiddingfold (G10)
Dunsfold has moderately hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Dunsfold
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
152mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Below Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.4pH units
UK Average: 7.43 pH unitsAverage
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
3mg/l
UK Average: 16.9 mg/lWell Below Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.9µg/l
UK Average: 1.08 µg/lAbove Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.13mg/l
UK Average: 0.19 mg/lAbove Average
LowAverageHigh
Water Hardness in Dunsfold
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
152mg/l CaCO₃Moderately Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Dunsfold 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
- Thames Water
- Supply Zone
- Chiddingfold (G10)
- Source Type
- Groundwater
- Treatment Works
- Chiddingfold Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Thames Water
Frequently Asked Questions
Is the water hard in Dunsfold?▾
Dunsfold has moderately hard water at 152 mg/l CaCO₃. Some limescale may occur but it is manageable with regular descaling.
Is Dunsfold tap water safe to drink?▾
Yes, tap water in Dunsfold is safe to drink. It is treated and tested by Thames Water and meets all UK Drinking Water Inspectorate standards. All tested parameters are within regulatory limits.
What is the water hardness in Dunsfold?▾
The water hardness in Dunsfold is 152 mg/l CaCO₃, which is classified as "Moderately Hard". This is below the UK national average of 170 mg/l.
Who supplies water to Dunsfold?▾
Water in Dunsfold is supplied by Thames Water, which serves the London and Thames Valley region. The water comes from underground aquifers and is treated at Chiddingfold Treatment Works.