The Pasig River used to be an important transport route in Spanish Manila. However, due to negligence and industrial development, the river has become very polluted and is considered dead (not able to sustain life) by ecologists.
The Pasig River Rehabilitation Commission(PRRC) was estalished to oversee rehabilitation efforts for the river. Supporting the PRRC are private sector organizations i.e. Clean and Green Foundation, Inc. who implemented the Piso Para sa Pasig campaign.