Official Supplier Data: South Staffordshire Water • DWI & BS 7593 Standards
Water Hardness in ST19
Official water quality verdict for outcode ST19: classified as Hard Water (230 PPM), supplied and treated by South Staffordshire Water across 2 sectors.
Rating: Hard Water230 PPM • 16.1° ClarkSupplier: South Staffordshire Water+15% above UK average
Outcode Mean Hardness230 PPM16.1° Clark • Hard Water23.0°fH • 12.9°dH
Outcode ST19 Household Water Quality Verdict & Practical Advice
Domestic tap water in outcode ST19 is officially classified as hard water, averaging 230 PPM (mg/L CaCO₃) or 16.1° Clark, supplied and treated by South Staffordshire Water across all 2 postcode sectors (457 postcodes). Readings range from 160 PPM (ST19 9) to 300 PPM (ST19 5), showing a local disparity of 140 PPM.
☕ Kettle & Tea Quality:
Rapid limescale buildup in kettles with floating scum on your cuppa. Descale monthly using white vinegar or food-grade citric acid.
🚿 Skin & Bathing:
High calcium levels can aggravate dry skin & eczema sensitivity. Soap lathers less easily, often leaving a tight feeling after hot showers.
🍽️ Appliances & Salt:
Keep water softener salt topped up and calibrate dishwashers to H04 – H05. Protect combi boiler heat exchangers under BS 7593.
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vs. UK Benchmark+15% Hardervs 200 PPM national average
Serving 457 homes and businesses across outcode ST19, mains tap water supplied by South Staffordshire Water registers an average mineral density of 230 PPM (23.0°fH / 12.9°dH). Rated as hard water, local water hardness determines how well laundry detergents lather, the rate of scale accumulation in combi boilers, and whether sensitive skin or eczema flares up after showers.
Water hardness isn't identical across every street in ST19—there is a 140 PPM variance between neighborhoods. Residents in sector ST19 9 enjoy the softest water at 160 PPM, whereas taps in sector ST19 5 register the highest mineral load at 300 PPM. This localized disparity occurs because South Staffordshire Water blends supplies from different boreholes, rivers, and storage reservoirs depending on elevation and seasonal demand.
Treated in strict compliance with Drinking Water Inspectorate (DWI) standards, tap water in ST19 maintains an average mineral density of 230 PPM, ensuring consistent municipal distribution and wholesome tap drinking water from South Staffordshire Water.
With tap water averaging 230 PPM in outcode ST19, proactive limescale prevention is essential. Expect rapid limescale buildup in kettles—monthly descaling with white vinegar or food-grade citric acid crystals keeps the heating base efficient and stops chalky flakes falling into your tea. Combi boiler heat exchangers are also susceptible to scale encrustation, which can increase annual gas heating bills by 10% – 15% without inline scale protection under British Standard BS 7593.
Estimated Annual Household Financial Impact
Limescale & Appliance Operating Costs in Outcode ST19
Based on 230 PPM mineral saturation (Hard Water), operating heating appliances across ST19's 457 households carries distinct annual economic consequences:
Extra Combi Boiler Gas Cost£130 – £190
Thermal heating transfer resistance caused by 1mm–1.5mm calcium carbonate build-up on heat exchangers.
Dishwasher Salt Requirement10 – 14 kg
Essential ion-exchange resin bed regeneration salt required to avoid glass clouding and element burnout.
Q: What is the average water hardness in outcode ST19?
Tap water across outcode ST19 averages 230 PPM (mg/L), which equals 16.1° Clark, 23.0°fH, or 12.9°dH. It is officially classified as hard water water supplied by South Staffordshire Water.
Q: Is water in ST19 harder than the UK national average?
The UK baseline average is approximately 200 PPM. At 230 PPM, water in outcode ST19 is 15% harder than the national benchmark.
Q: What dishwasher salt setting is recommended for ST19?
For Bosch, Siemens, and Neff dishwashers in outcode ST19 (230 PPM), the recommended softener setting is H04 – H05.
Q: Who manages the municipal water supply in outcode ST19?
Public tap water infrastructure across all 2 sectors in outcode ST19 is distributed and monitored by South Staffordshire Water.
All Postcode Sectors in ST19
Select a postcode sector below to view exact water softener salt settings, limescale protection guides, and appliance recommendations.