The river is part of the Pacific watershed and has a length of 160 km. The river begins in the highlands of the Huarochirí Province in the Lima Region and its mouth is located in Callao, near Jorge Chávez International Airport.
The consequences of contamination in the Rimac River are very worrisome and there are now many diseases. One of these is cholera, this disease is caused by a bacteria called Vibrio cholorea. Another disease is typhoid this disease is caused by a bacteria called Salmonella typhi. This illness is detected through faeces and is also transmitted through the water.