Sutton in Ashfield Water Hardness & Quality Report (2026)
Water Hardness
7.5°Clark10.7°fH6°dH
Source
mixed
pH Level
7.4
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
235.4 mg/L
Est. Daily Cost
£0.24
energy & soap waste
Source: DWI Data Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Sutton in Ashfield, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In Sutton in Ashfield | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.1 yrs | 8.5 yrs | -28% |
| Washing Machine | 9.7 yrs | 12 yrs | -19% |
| Water Heater | 11.3 yrs | 15 yrs | -25% |
Regional Water Comparison
How Sutton in Ashfield compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Sutton in Ashfield, East Midlands | 106.5 mg/L | 7.5° | 🟡 Moderately Hard | mixed |
| Kirkby in Ashfield, East Midlands | 167.5 mg/L | 11.8° | 🟠 Hard | mixed |
| Mansfield, East Midlands | 188 mg/L | 13.2° | 🔴 Very Hard | mixed |
| Pinxton, East Midlands | 172.5 mg/L | 12.1° | 🟠 Hard | mixed |
| Mansfield Woodhouse, East Midlands | 187.5 mg/L | 13.2° | 🔴 Very Hard | mixed |
National Benchmark
How Sutton in Ashfield compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Sutton in Ashfield | 106.5 mg/L | 🟡 Low |
| United Kingdom National Avg | 183 mg/L | 🔴 High |
| Livingston Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Sutton in Ashfield's Water Unique?
Local geology and source profile
Sutton in Ashfield, in the Ashfield district of Nottinghamshire west of Mansfield in the Sherwood Forest country, is supplied by Severn Trent Water from the Triassic Sherwood Sandstone aquifer — the same formation that takes its name from the Sherwood/Notts area. Severn Trent draws from licensed boreholes in the Triassic Sherwood Sandstone beneath the Nottinghamshire plain west of the Magnesian Limestone scarp, and from the Trent catchment in the general supply blend for this zone. The Sherwood Sandstone is a productive Triassic sandstone aquifer of relatively moderate mineralisation compared to the Magnesian Limestone to the east — it contributes moderate calcium and sulphate from sandstone cement dissolution. Sutton in Ashfield is therefore considerably softer than Arnold (251 mg/L) and Worksop (228.5 mg/L) east of the Magnesian Limestone scarp.
Sutton in Ashfield's hardness of 106.5 mg/L (7.5°Clark) reflects the Triassic Sherwood Sandstone supply in the Ashfield district west of the Magnesian Limestone scarp — a very different hardness from the limestone-dominated east Nottinghamshire supply zones. The Drinking Water Inspectorate (DWI) classifies this supply as moderately soft.
Limescale is a moderate concern in Sutton in Ashfield. At 106.5 mg/L, limescale forms gradually — kettles need descaling every one to two months. Combi-boiler heat exchangers accumulate modest deposits; annual servicing is sensible. Showerheads and taps develop light deposits. Washing-up liquid lathers reasonably well. A monthly Calgon tablet in the washing machine and a regular kettle descale is adequate limescale management for most Sutton in Ashfield households.
Geology & Source: Supplied by Severn Trent Water from the Triassic Sherwood Sandstone aquifer of west Nottinghamshire — Sutton in Ashfield's Sherwood country position west of Mansfield draws on Severn Trent's Triassic sandstone groundwater supply from the Sherwood Sandstone aquifer, producing moderately soft water at 106.5 mg/L (7.5°Clark) — much softer than the Magnesian Limestone zones to the east.