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San Mateo, Rizal, Calabarzon, 1850, Philippines (14.69545 121.11776)
The main source of the municipality's water supply are deep wells, pump wells (operated by Manila Water), open wells, springs and other ground water resources. Some of the elevated parts of the municipality are under watershed protected areas since the topography is characterized by rolling to mountainous terrain. From 0.65%, San Mateo's water sanitation reached 100% on 2006 through the operation of Manila Water.