Groundwater
Mapping in Nairobi

Yes, absolutely. SkyTEM technology is completely safe. It uses low-frequency electromagnetic waves similar to ordinary radio waves. There is no radiation, no drilling, no chemicals, and no environmental disturbance whatsoever. The technology has been used safely in over 60 countries for more than 20 years with a perfect safety record — including in densely populated urban areas.

The survey covers the Nairobi–Kajiado aquifer system including Ngong, Kiserian, Isinya, and Kajiado Town. Helicopters operate at safe altitudes following strict aviation guidelines set by the Kenya Civil Aviation Authority. Flight paths are carefully planned to maintain mandatory safety buffers around high-voltage electricity lines, particularly near Athi River and Ngong. You may see or hear helicopters carrying the distinctive circular SkyTEM sensor frame during March 2026.

The groundwater maps will identify sustainable water sources, dramatically improve borehole siting accuracy, enable smart water infrastructure planning, reduce the cost of failed drilling attempts, and ensure long-term water security for Nairobi's growing population. This is science in the public interest — the data belongs to Kenya.

The GROWANA project is committed to full transparency. Results will be shared with communities, government agencies, water utilities, academic institutions, and the public. The goal is to make this vital information accessible to support sustainable water management decisions that benefit all Nairobi residents.

We welcome all questions. Contact RCGW — Regional Centre on Groundwater Resources Education, Training and Research — through our social media channels. Community engagement workshops will be held during the survey period where you can speak directly with project scientists and experts. Your voice matters to this project.