Towards an Information System of Modeling and Monitoring of Cikapundung River, Bandung, Indonesia

Growing recognition of the need for water safety makes river water quality monitoring information and modelling usage more important to be accessed by many stakeholders. Cikapundung River which is located in the heart of Bandung City has its water for many purposes. In the other hand, the water of this river suffers as a result of wastes disposal from existing activities on its banks. Several agencies conduct regular monitoring, both discharge and water quality of this river. However, the monitoring results are not published openly. The data can only be obtained by visiting the monitoring agency. This procedure may result a non-optimal usage of the data, and can even be harmful when unsafe water is used for consumption need. An information system of monitoring data and modelling of Cikapundung River water quality is proposed to improve the method of data publication. Modelling of Cikapundung River water quality is also developed to have simple software for DO and BOD calculation simulation. The modelling is using Streeter-Phelps equation for DO calculation and first-order reaction of Phelps law for BOD calculation. The deoxygenation rates used in the software were obtained from the laboratory experiments, i.e. 0.01-0.37 per day.