The Water Dictionary

Tap Water in NE15

Low Service to City Centre ZoneNorthumbrian Water

Tap water in Low Service to City Centre Zone, supplied by Northumbrian Water, has the character of a blended surface and groundwater supply, with no dominant mineral signature. It's moderately soft, in the lower end of the national range, with a total hardness of 139 mg/L as CaCO₃.


Mineral composition

mg/L
Calcium46
Magnesium6
Sodium19
Sulfate65
Chloride11
Bicarbonate107

Additional info

Hardness138.71 as CaCO₃
Alkalinity87.5 as CaCO₃
pHawaiting data
Conductivityawaiting data
SourceNorthumbrian Water
Data year2024

What this means

Kettle & appliances

Some light mineral residue may appear in kettles over time, but significant limescale buildup is unlikely. No treatment needed for most appliances.

Espresso

A good range for espresso. Enough mineral content to provide body and balance acidity without posing a real scale risk to the machine. Most specialty coffee water targets fall in or near this band.

Filter & pour-over

Excellent for filter brewing. The slight mineral content adds body and sweetness without masking acidity, giving a balanced cup across most roast levels. This is close to the SCA's recommended range for brewed coffee.

Drinking & cooking

Tastes clean with a slight mineral presence. Good all-round water for cooking; it won't interfere with delicate flavours or leave noticeable deposits.

Bicarbonate

The buffering starts to become assertive: darker beer styles (porters, milds, brown ales) benefit from this level as it supports higher mash pH, but espresso will begin losing some of its brighter acidity, producing a rounder, heavier cup that flatters darker roasts while muting lighter ones.


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Nearby areas


Data sourced from Northumbrian Water (2024). Looking for a specific address? Look up your full postcode for the most accurate result.