Now, procedures of design for the earthquake resistance of buildings and non-building structures SNI 1726: 2012 has been approved the procedures for seismic design for buildings SNI 1726-2002. SNI 1726: 2012 refers to the development of modern seismic regulations are due to changes in tectonic plates located on the active track on the path of circum-Pacific and the Indian track - the Himalayas. With the enactment of the new SNI earthquake, namely SNI 1726: 2012, then all existing buildings and designed with old SNI earthquake, that is SNI - 1726-2002 should be evaluated against for the new regulations. Handling scheme for existing buildings should be made to determine and improve safety. Analysis and solutions are required to improve the safety of buildings. Retrofitting Seismic Isolation is one of the effective and practical methode to increase safety of buildings against earthquakes, because this methode can reduce the earthquake acceleration response. Retrofitting seismic isolation can not only improve the safety and functionality seismic, but also to maintain the original design. Without the need to demolish and rebuild the building, the building will remain intact. So that historic buildings and cultural heritage can still be preserved. The concept of base isolation is to decouple the upper structure from its foundation and inserting isolator which has a small horizontal stiffness. This techniques can reducing the seismic impact from the soil vibration which could be from seismic motion. This study will compare the ratio building safety for old structural design that uses SNI-1726-2002 (old) vs SNI 1726: 2012 (new). The results shows that retrofitting seismic isolation building have better performance in terms of ductility demand, natural period, and lower internal forces due to earthquake.

Delta Brantas Irrigation Area with total covering irrigated area 21,984 Ha, located entirely in Sidoarjo. Irrigation system performance in Delta Brantas Irrigation Area especially in Porong Kanal Primary Network tended to decline. So improvement strategy required in order to provide better irrigation services that fit the needs of the farming community. This problem can be studied by analyzing the existing condition, determining priority handling factors and a strategy for improving the irrigation network performance. From research results indicated that the degradation of the irrigation system performance in Delta Brantas Irrigation Area from 2012 to 2014 amounted to 3.66%. The priority handling factors that influencing the performance of Delta Brantas irrigation network are the condition of regulator structures, conditions of complementary structures, sewer condition, the completeness of operation and maintenance equipment, total personnel of operation and maintenance, personnel assignment of the operation and maintenance, legal status GP3A/P3A, institutional conditions of P3A, and P3A actively in search of irrigation networks, and P3A contribution to repair the irrigation networks. From SWOT analysis resulted a strategy position used to improve the performance of Porong Kanal Irrigation Network Delta Brantas Irrigation Area is turn-around strategy which minimizing the weaknesses to take advantage of opportunities.