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Geotek Water Solutions from Jos, Nigeria, has won The Water Council's fall Tech Challenge, claiming the $10,000 first prize. This marks the first victory for an African company in the challenge. Geotek utilizes low-enthalpy geothermal energy for water treatment, achieving up to 65% lower energy costs compared to conventional systems, and supports off-grid solutions to improve water access in emerging markets.

The runner-up, Service ID from Fitchburg, Wisconsin, received $5,000 for its AI-driven tool that helps water utilities identify lead pipes using homeowner-submitted photos, streamlining lead service line inventories and aiding compliance with lead and copper regulations. The initiative aims to tackle significant water challenges by promoting access to clean water and addressing lead contamination.