Private water supplies provide ~3% of the Scottish population with their main source of drinking water. Many more people encounter private supplies when they stay in holiday accommodation and visit the more remote parts of Scotland, although PWS can be found in urban areas. The quality of these supplies is variable; many have adequate treatment and are well managed, but others present a risk to health due to the quality of the raw water and inadequate, or absent, treatment. For many communities relying on water supplies outwith the public distribution network it may be difficult to afford the capital costs required for improvement.
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