A Level III Water Works System operated and maintained by the Pandan Water District supplies 20 barangays in the municipality. The system was built through a joint undertaking of the Japan Asian Friendship Society and the Local Government of Pandan. The system basically draws water from a spring located in Malumpati and pumps it to a reservoir located in Santo Rosario. It then distributes water by gravity to its concessionaires. It is currently capable of supplying 540,000 liters per day, mainly for domestic consumption (currently involving 1,132 users).