Water Hardness and Quality in Cold Aston
Supplied by Severn Trent Water · Cotswold Zone 8
Cold Aston has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Cold Aston
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
281.3mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.5pH units
UK Average: 7.43 pH unitsAbove Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.26mg/l
UK Average: 0.45 mg/lWell Below Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
21.44mg/l
UK Average: 16.9 mg/lAbove Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.13µg/l
UK Average: 1.08 µg/lWell Below Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.09mg/l
UK Average: 0.19 mg/lBelow Average
LowAverageHigh
Water Hardness in Cold Aston
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
281.3mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Cold Aston has hard water at 281.3 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
- Severn Trent Water
- Supply Zone
- Cotswold Zone 8
- Source Type
- Mixed
- Treatment Works
- Gloucestershire Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Severn Trent Water
Frequently Asked Questions
Is the water hard in Cold Aston?▾
Yes, Cold Aston has hard water at 281.3 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Cold Aston tap water safe to drink?▾
Yes, tap water in Cold Aston is safe to drink. It is treated and tested by Severn Trent Water and meets all UK Drinking Water Inspectorate standards. All tested parameters are within regulatory limits.
What is the water hardness in Cold Aston?▾
The water hardness in Cold Aston is 281.3 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Cold Aston?▾
Water in Cold Aston is supplied by Severn Trent Water, which serves the West Midlands region. The water comes from mixed sources and is treated at Gloucestershire Treatment Works.