Retention pond as an alternative to mitigating runoff and sustainable water source at Jember University

Abstract

Surface runoff volume and groundwater consumption have increased because of development activities and increasing groundwater consumption at the University of Jember (UNEJ). Rainwater and runoff, on the other hand, can be used as alternative water sources to meet clean water needs and encourage sustainable campus growth. Retention ponds (RP) are excellent stormwater management solutions, which is part of the Low Impact Development (LID) practises. Low-lying areas or natural basins are suitable locations for RP, yet in some circumstances, like as flat topographic settings, RP placement is typically determined by available land. However, to efficiently capture and maintain rainfall, RPs should be strategically situated around peak runoff source areas, according to LID principles. As a result, this study examines the RP’s response as well as the possibility for rainwater harvesting depending on various capacities and locations. At terms of location, RPs at peak runoff sources are more successful than other locations in preventing inundation and storing water. Based on capacity, RP with 60% of maximum total intake performs better than the other. However, for optimal harvesting it is better to use RP with 80% of the maximum total intake.