Water Hardness and Quality in Bath
Supplied by Wessex Water · Monkswood
Bath has very hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Bath
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
300.7mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Above 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
0.3mg/l
UK Average: 0.45 mg/lBelow Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
13.8mg/l
UK Average: 16.9 mg/lAverage
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.4µg/l
UK Average: 1.08 µg/lBelow Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.23mg/l
UK Average: 0.19 mg/lWell Above Average
LowAverageHigh
Water Hardness in Bath
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
300.7mg/l CaCO₃Very Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Bath has hard water at 300.7 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
- Wessex Water
- Supply Zone
- Monkswood
- Source Type
- Groundwater
- Treatment Works
- Monkswood Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Wessex Water
Frequently Asked Questions
Is the water hard in Bath?▾
Yes, Bath has hard water at 300.7 mg/l CaCO₃. This is classified as "Very Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Bath tap water safe to drink?▾
Yes, tap water in Bath is safe to drink. It is treated and tested by Wessex Water and meets all UK Drinking Water Inspectorate standards. All tested parameters are within regulatory limits.
What is the water hardness in Bath?▾
The water hardness in Bath is 300.7 mg/l CaCO₃, which is classified as "Very Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Bath?▾
Water in Bath is supplied by Wessex Water, which serves the South West England region. The water comes from underground aquifers and is treated at Monkswood Treatment Works.