One of the residential areas in Banda Aceh City that has problems with wastewater management is the Lembah Hijau housing. Lueng Bata District. In 2018. the government has built and operationalized 2 units of Local Domestic Wastewater Management Installation (WWTP) with a service capacity of 50 households per unit and a capacity of 72m3/day. https://foldlyers.shop/product-category/personal-alarms/