The name of Barangay Tumana refers to the Tagalog word for a wide level land just above water level. The area was considered ideal for vegetable farming due to the rich riversoil, and the annual inundation of the area by the Marikina River during rainy season, which prevented crawling insect pests from staying permanently. This area was eventually also used for riversoil quarrying and saw an influx of informal settlers which turned it into a residential area, eventually becoming a separate barangay from Concepcion, with Patay na Ilog forming part of the boundary.