Designing catchment area for water resources management in ITS campus

¹ Rector of Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
² Department of Statistics, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
³ Department of Biology, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
⁴ Departement of Civil Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia

Abstract

Institut Teknologi Sepuluh Nopember (ITS) Campus, with the area of 167.4 Ha, is located within Surabaya coastal region in the eastern part of Java Island. It has initial characteristic with wetlands and swamps ecosystem. As a science and technological university, with the main acitivities in teaching, experimental laboratory works, and student activities, ITS is, currently, using ± 49% of its total vast area as building blocks for supporting academic facilities. Being a campus in a coastal zone, the commonly main problems are high porous soil, brackish surface water, high level of ground water, an obstructed drainage tendency because of delicate slant, and low catchment capability. This paper provides an action program on how ITS manage water resources within campus area in order to suppress environmental damage. Many steps had been taken into account for water catchment role, for instance: maintaining the catchment area on the main ITS master plan, planning catchment pond, surface water stabilization by preventing ground water usage, interrupting drainage water flow as being directly discharged into the city drainage system, rain water harvesting, and also designing floating floor for buildings.