In 1989 two reports were published on the Ci Durian Ugrading and Water Management Project.Japan International Cooperation Agency (JICA) undertook the Ci Ujung – Ci Durian Integrated Water Resources Study in 1992.
Pada tahun 1989 dua laporan diterbitkan pada Ci Durian Ugrading dan Proyek Manajeman Air.Japan International Cooperation Agency (JICA) melakukan Ci Ujung – Studi Sumber Daya Air Terpadu Ci Durian pada tahun 1992.