Water Hardness and Quality in Wycombe Northwest
Supplied by Thames Water · Wycombe Northwest (SWA29)
Wycombe Northwest has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Wycombe Northwest
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
285mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.3pH units
UK Average: 7.43 pH unitsBelow Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.5mg/l
UK Average: 0.45 mg/lAbove Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
24mg/l
UK Average: 16.9 mg/lAbove Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
1µg/l
UK Average: 1.08 µg/lAbove Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.07mg/l
UK Average: 0.19 mg/lWell Below Average
LowAverageHigh
Water Hardness in Wycombe Northwest
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
285mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Wycombe Northwest has hard water at 285 mg/l. You will likely experience significant limescale buildup in kettles, boilers, and on bathroom surfaces. Many residents in your area use water softeners or anti-limescale products.
Water Source Information
- Water Company
- Thames Water
- Supply Zone
- Wycombe Northwest (SWA29)
- Source Type
- Groundwater
- Treatment Works
- Wycombe Northwest Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Thames Water
Frequently Asked Questions
Is the water hard in Wycombe Northwest?▾
Yes, Wycombe Northwest has hard water at 285 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Wycombe Northwest tap water safe to drink?▾
Yes, tap water in Wycombe Northwest 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 Wycombe Northwest?▾
The water hardness in Wycombe Northwest is 285 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Wycombe Northwest?▾
Water in Wycombe Northwest is supplied by Thames Water, which serves the London and Thames Valley region. The water comes from underground aquifers and is treated at Wycombe Northwest Treatment Works.