Bedadung River is one of the most strategicrivers located in the Bedadung Watershed in Jember. This river crosses Jember with a length of 46,875 meters and it is used as a source of raw water and irrigation as well as a source for PDAM in Jember. Along with many activities of the community, the water pollution load increases significantly. In general, the source of pollution comes from anthropogenic activities in the form of exposure to domestic waste, industrialization, population growth, pesticides and fertilizers, organic and inorganic waste, urban development and weak management systems. This study aims to analyze the environmental risks in the bedadung watershed based on water quality data using DPSIR method. The DPSIR (Driver-Pressure-State-Impact-Response) framework has been used as one of the tools in environmental risk analysis that shows the existence of linear interactions between human activities-pressure and impact. In general, human activities are part of the drivers and human needs that can cause pressure on the environment. This pressure has the potential to cause certain negative impacts that need handling to reduce it. The DPSIR framework which being used is Driver (industry, garbage); Pressure (changes in the chemical composition of water); State (physical and chemical characters); Impact (changes in water quality); and Response (limiting waste disposal to rivers).
Bedadung River is used as sources of raw water by The Drinking Water Company (PERUMDAM) and also for agricultural irrigation. The urban segment of Bedadung River flows through Patrang, Sumbersari and Kaliwates Districts. The burden of pollution in the Bedadung River is increasing along with community activities. Apart from anthropogenic activities originating from domestic waste, sources of pollution in the Bedadung River are also come from agricultural activities (fertilizer and pesticides), industrial activities, population growth, organic and inorganic waste, urban development and weak management systems. The research objectives were to identify the behavior and perception of the urban segment communities on water pollution at Bedadung River. This study used primary data from survey using 400 respondents and secondary data from some institutions. Survey showed that majority of the respondents through away garbage to channel and river, however for feces disposal, 75% of the communities already had toilets. Based on community perceptions the current status of the Bedadung River is 58% polluted, 7% unknown, and 36% is good. This perception is based on Bedadung River water conditions such as the presence of garbage, water clarity and water odor. In order to maintain the environmental quality of the Bedadung River, the community and related stakeholders have carried out river cleaning activities on a sustainable basis. This preliminary study is expected to provide preliminary information on managing community-based river water quality in a sustainable manner.
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