With the activity theme "River Flow Conservation", alternative plans are being implemented to reduce the impact of flooding. This alternative is realized in the form of community service in RW-01, Kasin Village, Klojen District, Malang City. This activity ran for 6 months, making RW-01 a cool, beautiful, green and environmentally friendly area. The activities carried out are river dredging, reforestation in the form of urban farming and construction of fish cages to reduce flooding and improve community welfare. RW-01 administrators and local residents are generally quite appreciative of the idea of implementing "River Flow Conservation" to reduce flooding, improve environmental quality and utilize water resources in RW-01, Kasin Village, Klojen District, Malang City, thereby providing a positive impact, namely clean, comfortable and sustainable environment.