Clean water is the determining factor of a successful country. Water management is needed to protect our water ways from dissolved nitrates produced by fertilizing, heavy metals from road runoff and sewage effluent and grey water from households, factories and chemical plants. Water management include designs of bio swales, rain gardens, constructed wetlands and floating islands. They also beautify the landscape as well as provide a habitat for flora and fauna. Because it adds up the percentage of green area and protects the environment, there are a few renown projects, such as the ABC project in Singapore and the Cheonggyecheon Stream in Seoul, Korea, which employs this concept. Concrete canals were demolished and transformed into active streams. This not only injected life into the area but revitalized the entire city. Creating such water bodies definitely adds points to the Green Mark in Singapore and Green Building Index in Malaysia.