Water Hardness and Quality in Ash Brake
Supplied by Thames Water · Swindon North (S22)
Ash Brake has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Ash Brake
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
275mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.6pH units
UK Average: 7.43 pH unitsWell Above Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.33mg/l
UK Average: 0.45 mg/lBelow Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
21mg/l
UK Average: 16.9 mg/lAbove 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
0.14mg/l
UK Average: 0.19 mg/lAbove Average
LowAverageHigh
Water Hardness in Ash Brake
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
275mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Ash Brake has hard water at 275 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
- Swindon North (S22)
- Source Type
- Groundwater
- Treatment Works
- Swindon North Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Thames Water
Frequently Asked Questions
Is the water hard in Ash Brake?▾
Yes, Ash Brake has hard water at 275 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Ash Brake tap water safe to drink?▾
Yes, tap water in Ash Brake 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 Ash Brake?▾
The water hardness in Ash Brake is 275 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Ash Brake?▾
Water in Ash Brake is supplied by Thames Water, which serves the London and Thames Valley region. The water comes from underground aquifers and is treated at Swindon North Treatment Works.