Skip to main content
💧 TapWaterData

How hard is South Staffordshire Water's water, zone by zone?

South Staffordshire Water's published supply-zone record runs 136.3–351.8 mg/L as CaCO₃, varying by supply zone, which spans DWI's Slightly hard to Very hard bands, per South Staffordshire Water — supply-zone water quality reports (31 December 2025, read 20 September 2026).

Source: South Staffordshire Water — supply-zone water quality reports — dated 31 December 2025, read 20 September 2026

Drinking Water Inspectorate (DWI) enforces the UK drinking water quality regulations in England and Wales. Figures it classifies or regulates on this page cover England and Wales only.

What this record covers

Every row below is a total hardness figure for one area South Staffordshire Water supplies, read from a list its publisher publishes in full. 35 supply zones, read from the company's own annual zone reports.

South Staffordshire Water publishes these reports under Cambridge Water and South Staffs Water, so the name on a report is not always the name on your bill. Each row below is sourced to the report it came from.

This supply’s total hardness, in every unit used here

UnitThis supply
mg/L as CaCO₃136.3–351.8 mg/L as CaCO₃
°Clark9.6–24.7 °Clark

This supply runs 136.3–351.8 mg/L as CaCO₃, varying by supply zone. That spans DWI’s Slightly hard (100–150) to Very hard (more than 300) bands, so no single band describes it.

Every total hardness figure in this record

What South Staffordshire Water publishes and this page will not

  • South Staffordshire Water publishes a figure for Bluntisham and we will not print it: its own report contradicts itself, with the column the headline figure comes from disagreeing with the other cells on the same row, re-read on 20 September 2026. Neither reading is publishable, so we would rather tell you that than pick one.

Where these numbers come from

136.3–351.8 mg/L as CaCO₃ across 35 areas, published by Cambridge Water and South Staffs Water.

Source: South Staffordshire Water — supply-zone water quality reports — dated 31 December 2025, read 20 September 2026

More on hard water here

By TapWaterData Editorial