Water Hardness and Quality in Southill
Supplied by Wessex Water · Weymouth
Southill has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Southill
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
284.5mg/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
38.8mg/l
UK Average: 16.9 mg/lWell Above Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.6µg/l
UK Average: 1.08 µg/lAverage
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.06mg/l
UK Average: 0.19 mg/lWell Below Average
LowAverageHigh
Water Hardness in Southill
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
284.5mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Southill has hard water at 284.5 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
- Weymouth
- Source Type
- Groundwater
- Treatment Works
- Weymouth Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Wessex Water
Frequently Asked Questions
Is the water hard in Southill?▾
Yes, Southill has hard water at 284.5 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Southill tap water safe to drink?▾
Yes, tap water in Southill 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 Southill?▾
The water hardness in Southill is 284.5 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Southill?▾
Water in Southill is supplied by Wessex Water, which serves the South West England region. The water comes from underground aquifers and is treated at Weymouth Treatment Works.