In this video, we look at a horizontal well that is located in an area containing several lead mines. The horizontal well provides water for a large house in the area and had, in the past fed a whole village.

In addition to the horizontal well, we also test the water from a newly drilled borehole. The test results indicate that the horizontal well contains around 300 ug/l of lead, whilst the borehole contains around 3 ug/l. The maximum permissible concentration for lead in drinking water is 10 ug/l. 

These results confirm that the horizontal well water requires treatment to make it fit for the purpose of drinking/cooking. The borehole water would not need treatment for lead.