Water Hardness and Quality in Reading Central
Supplied by Thames Water · Reading Central (R31)
Reading Central has very hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Reading Central
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
313mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.3pH units
UK Average: 7.43 pH unitsBelow Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.4mg/l
UK Average: 0.45 mg/lAverage
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
29mg/l
UK Average: 16.9 mg/lWell Above Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
2.2µg/l
UK Average: 1.08 µg/lWell Above Average
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.14mg/l
UK Average: 0.19 mg/lAbove Average
LowAverageHigh
Water Hardness in Reading Central
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
313mg/l CaCO₃Very Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Reading Central has hard water at 313 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
- Reading Central (R31)
- Source Type
- Mixed
- Treatment Works
- Reading Central Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Thames Water
Frequently Asked Questions
Is the water hard in Reading Central?▾
Yes, Reading Central has hard water at 313 mg/l CaCO₃. This is classified as "Very Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Reading Central tap water safe to drink?▾
Yes, tap water in Reading Central 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 Reading Central?▾
The water hardness in Reading Central is 313 mg/l CaCO₃, which is classified as "Very Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Reading Central?▾
Water in Reading Central is supplied by Thames Water, which serves the London and Thames Valley region. The water comes from mixed sources and is treated at Reading Central Treatment Works.