Feasibility Testing of Rainwater Quality for Application of Rainwater Harvesting Eka Adhitya Kurniawan (a*), Rully Nurhasan Ramadani (a), Andrieanto Nurrochman (a), Indra Karna Wicaksana (a), Muhammad Khalifman (a), Akmal Fawwaz (a)
a) Mining Engineering Department, Universitas Islam Bandung
Jalan Tamansari 24, Bandung 40116, Indonesia
*ekaadhityak[at]gmail.com
Abstract
Indonesia has a large potential for rainfall to be used as an alternative source of raw water. In Law No. 17 of 2019 concerning Water Resources Article 29 states that the utilization of water resources does not only include surface water, groundwater, or seawater, but also rainwater. Uncontrolled use of groundwater can cause adverse impacts, including groundwater crises, land subsidence, or seawater intrusion. Therefore, alternative use of other water sources is needed, namely rainwater. The challenge faced in utilizing rainwater as a source of raw water is the existence of rainwater that is not continuous and is strongly influenced by the seasons, so an effort is needed to harvest rainwater that can be used also when there is no rain. This research is focused on analyzing the chemical quality of the results of mixing between groundwater and rainwater at the research site. The samples used were 2 samples from rainwater and 2 samples from groundwater. Based on the chemical quality test of the sample, it shows that if a mixture of 10%-90% ratio of rainwater and groundwater is carried out, the water quality criteria fall into the Class II category. Based on Government Regulation (PP) Number 22 of 2021 for the Implementation of Environmental Protection and Management, this category is intended for freshwater fish cultivation, livestock, and water for irrigating plants or other uses that require the same water quality as these uses.
