San Juan River (Calamba)

San Juan River
Calamba River
San Juan River as seen from Bañadero Bridge
San Juan River (Calamba) is located in Luzon
San Juan River (Calamba)
San Juan River (Calamba) is located in Philippines
San Juan River (Calamba)
Location
CountryPhilippines
RegionCalabarzon
ProvinceLaguna
CityCalamba
Physical characteristics
Source 
 • locationMalvar, Batangas
 • elevation10 meters (33 ft) (deepest)
Mouthsouthern part of Laguna de Bay
 • coordinates
14°13′24″N 121°11′15″E / 14.22343°N 121.18761°E / 14.22343; 121.18761
 • elevation
less than 2 meters (6.6 ft) above sea level
Lengthoverall: 177.80 kilometers (110.48 mi) from Laguna de Bay to Mount Malepunyo (Lipa, Batangas)
Basin size25.50 m (83.7 ft)
Discharge 
 • average1,000 cubic meters per second (35,000 cu ft/s)

The San Juan River (Tagalog: Ilog ng San Juan), also known as the Calamba River, is a river system in Calamba, Laguna, Philippines. It is one of 21 major tributaries of Laguna de Bay and is regularly monitored by the Laguna Lake Development Authority (LLDA) through one of its 15 river monitoring stations.

Along with the San Cristobal River, it is one of the two major rivers of Calamba that drains into Laguna de Bay.[1] Its watershed area covers Calamba in Laguna and the municipalities of Santo Tomas, Tanauan, and Malvar in Batangas.[2]

  1. ^ World Bank Environmental Assessment Report: Calamba, Laguna, August 1997, retrieved September 30, 2007
  2. ^ Final List of Watersheds Supporting 140 River Irrigation System of the NIA (PDF), 2006, retrieved September 30, 2007