You do not define borehole, so I am like Rose, thinking you may actually refer to hand-dug wells, which can be contaminated by runoff or nearby septic tanks or animals. I immediate solution would be chlorine (sodium hypochlorite tablets) or ceramic filters in the house. I the longer term, a well-protection scheme is needed to line wells and isolate them from coliform sources by fencing. This is a VERY serious public health concern, which should be brought to the attention to public health authorities in your vicinity. Infected people need to be kept hydrated until they recover. It needs a comprehensive approach to address your problem, and your government must be involved. David Boggs, PE (water engineer)
Published by David Boggs, Director of Environmental Services
You do not define borehole, so I am like Rose, thinking you may actually refer to hand-dug wells, which can be contaminated by runoff or nearby septic tanks or animals. I immediate solution would be chlorine (sodium hypochlorite tablets) or ceramic filters in the house. I the longer term, a well-protection scheme is needed to line wells and isolate them from coliform sources by fencing. This is a VERY serious public health concern, which should be brought to the attention to public health authorities in your vicinity. Infected people need to be kept hydrated until they recover. It needs a comprehensive approach to address your problem, and your government must be involved. David Boggs, PE (water engineer)