Due to geogenically conditioned high concentrations of fluoride, the main local drinking water source Lake Baringo in Kenya is contaminated. Fluoride causes dental and skeletal fluorisis being ingested in high concentrations over a long period of time. In 2020 a new plant for the production of synthetic hydroxyl apatite (HAPaqua) as filter material for fluoride removal was installed by Harbauer GmbH, in cooperation with Dr. Ecker GmbH in Nukuru. Fully solar-powered systems equipped with HAPaqua filters and UV disinfection units (will) ensure hygiene drinking water for the population of Baringo County.