| Summary: | Symptoms of urban development in South Sulawesi has a trend to minimize the
open green spaces and converted into shops, shopping centers, residential, hotel,
recreational areas and industrial. While the potential water availability has
decreased with the increasing population growth and industrial sectors. This study
aims to know the potential water availability of Bili-Bili dam for water supply
served by constructing reservoir operation pattern.
Operation pattern Bili-Bili dam using simulation with Standard Operating Rule to
get the best supply capacity and optimal release. The availability of water in the
Jeneberang watershed were analyzed using model in HEC-HMS and Thomas-
Fiering method to get the amount of water availability in future projections. Water
demand calculated based on the standard from the Center for Irrigation Department
of Public Works.
The results showed on simulations with Standard Operating Rule, the optimal
supply happens at the first planting schedule with target release scenario irrigated
rice-rice-maize. At existing condition the irrigation water needs is 61,35 percent
with target release of raw water 100 percent. On the 10-year and 20-year
projections, the best results is 53.7 percent and 44.5 percent of irrigation water
needs with target release raw water 100 percent.
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