Water Hardness and Quality in Charlton
Supplied by Wessex Water · Shaftesbury
Charlton has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Charlton
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
288.5mg/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
38.6mg/l
UK Average: 16.9 mg/lWell Above Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
1.1µg/l
UK Average: 1.08 µg/lWell Above 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 Charlton
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
288.5mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Charlton has hard water at 288.5 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
- Shaftesbury
- Source Type
- Groundwater
- Treatment Works
- Shaftesbury Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Wessex Water
Frequently Asked Questions
Is the water hard in Charlton?▾
Yes, Charlton has hard water at 288.5 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Charlton tap water safe to drink?▾
Yes, tap water in Charlton 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 Charlton?▾
The water hardness in Charlton is 288.5 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Charlton?▾
Water in Charlton is supplied by Wessex Water, which serves the South West England region. The water comes from underground aquifers and is treated at Shaftesbury Treatment Works.