The County also faces significant challenges in managing liquid waste, with the issue of wastewater and nutrient pollution being among the key issues to address. The urbanization trend in the last decades, occasioned by unprecedented rise in the number of anthropogenic activities has led to an increase in the amount of wastewater produced. The previous urban plan, developed by the department of Lands and Physical Planning, did not envisage a proper sewerage system, and now, most of the wastewater and the sludge produced in and around the County are transported to an open modified unregistered lagoon situated at Kaimosi. Hence, there is a clear potential to implement nature-based solutions such as constructed wetlands to treat wastewater. Also, wastewater could be reused and used for other purposes, such as energy production, using biogas, while the sludge collected could be applied in agriculture as fertilizer. These good practices would not only reduce the amount of wastewater discharged into the environment, but also provide alternative sources of clean green energy, and fertilizers.