Definition
The types of irrigation facilities are enumerated at the bottom of the questionnaire as follows:
Code 01 - NIS (National Irrigation System) - A government irrigation system built or constructed and managed by the National Irrigation Administration (NIA) to provide continuous supply of water for agricultural purposes to farmers in exchange for a fee.
Code 02 - CIS - NIA assisted
Code 03 - CIS - LGU (Local Government Unit) assisted
Code 04 - CIS - Private
CIS (Communal Irrigation System) - Irrigation facilities constructed by the NIA and turned over to Irrigators Associations (IA) upon completion. Operation and maintenance become the responsibility of the IAs which in turn collects direct operating cost of the project from farmer members.
Code 05 - SWIP/SFR (Non-NIA )
Code 06 - SWIP/SFR (NIA)
SWIP (Small Water Impounding Project) - A structure constructed across a narrow depression or valley developed as a reservoir that holds-back water and that store rainfall and run-off during the rainy season. Its structural height does not exceed 30 meters and has a volume storage not exceeding 50 million cubic meters. The average service area of SWIP is about 60 hectares (25-150 hectares).
SFR (Small Farm Reservoir) - A small version of SWIP and is designed to collect and store rainfall and run-off for use in a single farm. It has a reservoir area of about 300-5,000 square meters and can serve 0.50 - 1.00 hectare. The embankment height above ground level is 4 meters and below. It can easily be constructed by usual manual digging or through a bulldozer. Irrigation is done with the use of a PVC siphon pipes or pumps.
Code 07 - Pump (Non-NIA)
Code 08 - Pump (NIA)
Pumps (STW or Shallow Tube Well, open source pump) - An irrigation device provided personally by the operator for his/her farm's irrigation needs. It could be rented, borrowed or owned by him or any other member of his/her household
Code 09 - SDD (Small Diversion Dam) - A channel and supporting ridge constructed across the slope to collect and divert run-off. The purpose of this practice is to divert excess surface water from one area for use or safe disposal.
Code 10 - Others (specify) - Includes those not previously classified.
