The Water Dictionary

Tap Water in NR22

FakenhamAnglian Water

Tap water in Fakenham, supplied by Anglian Water, has the character of a chalk aquifer source, typical of southern and eastern England. It's hard water, well above the national average, with a total hardness of 372 mg/L as CaCO₃. This is notably hard water, among the highest-mineral tap water in England.


Mineral composition

mg/L
Calcium142
Magnesium4
Sodium19
Sulfate60
Chloride55
Bicarbonate~335
~ Estimated from hardness and ion balance — not directly measured by the water company.

Additional info

Hardness371.81 as CaCO₃
Alkalinity274.5 as CaCO₃
pH7.81
Conductivity693 µS/cm
SourceAnglian Water
Data year2025

What this means

Kettle & appliances

Limescale is a persistent issue. Kettles fur up quickly, and boilers, dishwashers, and washing machines all accumulate scale that reduces efficiency and shortens lifespan. Water treatment (a softener, inhibitor, or filter) is strongly recommended.

Espresso

Scale is a serious concern at this level: machines need regular descaling and filtration is strongly recommended. In the cup, the water has strong opinions. Light roasts lose their acidity and origin character almost entirely. But dark-roasted, milk-based espresso can work well here. London's coffee culture developed around exactly this kind of water: strong, dark-roasted coffee served with milk, where the density and body that hard water produces become a virtue rather than a flaw.

Filter & pour-over

Hard water hits filter coffee harder than espresso because the brewing ratio gives it more influence. Lighter roasts will taste flat and indistinct; the buffering neutralises the acidity that carries fruit and floral notes. Darker roasts produce a drinkable but heavy cup. If you're brewing pour-over with water this hard, the water is the first thing to address.

Drinking & cooking

Noticeably mineral-heavy on the palate. Soap and shampoo lather poorly. Tea may develop a film on the surface (that's the calcium reacting with tannins). Cooking water may leave a chalky residue on pans.

Bicarbonate

Heavily buffered water that resists pH change substantially: suited only to the darkest, most roast-forward beer styles (and even then may need dilution), while espresso at this level will taste dull, chalky, and lacking definition, with almost all origin character neutralised by the alkalinity.


Closest water profiles


Nearby areas


Data sourced from Anglian Water (2025). Looking for a specific address? Look up your full postcode for the most accurate result.