DETERMINING THE STATUS OF THE SETIAMANAH RESERVOIR ECOSYSTEM IN CIMAHI CITY OF WEST JAVA PROVINCE

Abstract

Water availability in Cimahi City is increasingly threatened, so efforts are needed to increase the number of water sources to meet the increasing needs of the population. One of the efforts is to find a reservoir that can be used as a water source. Setiamanah Reservoir is one of the reservoirs that will be utilized. This research aims to evaluate the reservoir ecosystem according to the assessment guidelines issued by the Ministry of Environment of the Republic of Indonesia. The assessment uses parameters grouped into aquatic, border, and terrestrial ecosystems. Based on the research results, Setiamanah Reservoir Ecosystem has been damaged. Aquatic ecosystems categorized as damaged are trophic status, biodiversity, and food web. The bordering ecosystem is categorized as damaged, especially for land use conditions at the border and waste disposal. Terrestrial ecosystems are categorized as threatened for vegetation cover on catchment area land and are included in the damaged category for the impact of the siltation of reservoirs and dumps. The cause of the damage is mainly the settlements in the riparian areas and water catchment areas, which continue to experience an increase. In 2022, 68.19% of the reservoir boundaries will be residential. The settlement is not equipped with a domestic wastewater management system, so the accumulated wastewater enters the reservoir. This causes the aquatic ecosystem to be disrupted. Improvements are made in managing domestic wastewater, especially in the riparian and water catchment areas.