Common Causes of Dry Boreholes and How to Avoid Them

Dry boreholes are one of the most frustrating outcomes of groundwater development projects in Kenya. Many of these failures can be avoided with proper planning and professional input.

Major Causes of Dry Boreholes

1. Poor Borehole Siting

Drilling without a hydrogeological survey often leads to poor site selection, especially in hard rock terrains where groundwater occurs in fractures.

2. Inadequate Geological Understanding

Ignoring subsurface geology can result in drilling outside productive aquifers or missing fracture zones.

3. Insufficient Drilling Depth

Some aquifers occur at greater depths. Stopping drilling too early may lead to failure even when groundwater exists deeper.

4. Loss of Circulation During Drilling

Unmanaged loss of drilling fluids can mask water strikes or lead to poor borehole development.

5. Seasonal Water Tables

Shallow aquifers may dry up during dry seasons, especially in semi-arid regions.

How to Avoid Dry Boreholes

• Conduct professional hydrogeological and geophysical surveys

• Engage qualified drilling supervisors

• Drill to recommended depths

• Carry out proper borehole development and pumping tests

Conclusion

Dry boreholes are not just bad luck—they are often the result of avoidable technical errors. Working with experienced consultants like Everblue Water Services Limited greatly improves success rates.