Livingston Water Hardness & Quality Report (2026)

Scottish Water supplies Livingston, West Lothian, Scotland, drawing from the Glencorse Reservoir and Harlaw Reservoir. These reservoirs are situated within the Pentland Hills, a region whose upland reservoir system captures water from ancient Silurian greywacke catchments. This geological makeup results in water that is exceptionally soft, registering at just 0.6°Clark, making it among the softest domestic supplies found across the United Kingdom. The specific treatment plants and detailed water source information are not readily available.

The water originates from the Pentland Hills, an area characterized by its ancient Silurian greywacke rock formations. This type of bedrock in the catchment area means the water picks up very few dissolved minerals as it flows into the reservoirs. Consequently, the water is exceptionally soft, containing minimal calcium and magnesium, which are the primary contributors to water hardness. This geological background is the key reason behind Livingston's remarkably soft water supply.

Because Livingston's water is so soft, you'll likely notice that soap and detergents lather up very easily, and you may need to use less than you would in other areas. While it's generally good for appliances as it reduces scale buildup, some people find the taste different or less appealing than harder water. If you're used to harder water, you might find you need to adjust your cleaning routines. The Scottish Water Consumer Confidence Report, available on their website, provides the most up-to-date details on water quality and compliance with regulations like the Water Supply (Water Quality) (Scotland) Regulations 2010.