Pemanfaatatan air hujan untuk mengatasi kekeringan
Generally, Central Java Province is quite prone to drought. Based on the balance sheet need’s water in 2020, Java will have a fairly large deficit in water demand. This study aims to overcome its conditions appropriate technology-based countermeasures. The method that used in this research is a literature review, secondary data collection, field observations and round table discussion. The result of this study is an analysis of construction that solving deficit water conditions in districts of Karangmoncol , Purbalingga regency. The concept of construction proposed is implementation efforts are made especially for treatment with the technology of production ponds, ABSAH (Artificial Aquifer of rain water Deposit, Akuifer Buatan Simpanan Air Hujan ) model . Karangmoncol District have problems in the availability of raw water, because well is very deep in the dry season. As an alternative can be taken the second highest value of ABSAH. In Indonesian, the schemes attributed to the so called ABSAH (Akuifer Buatan dan Simpanan Air Hujan), which stands for Artificial Aquifer and Rainfall Storage (AARS). AARS is a result of modification of the well known rainfall harvesting storage tank (PAH) schemes. A guideline for designing this AARS has been accepted for solving water shortage problems elsewhere in Indonesia. This paper discusses the concepts and philosophy of design and modification view points behind these new schemes. Based on population data 2350 person in 535 household we taken 5 person every household. Everyday water demand calculated ais 125 liter/man/day , so we should provide 625 liter/day every household. We have taken rainfall data in Karangmoncong district and it required 70 m2 roof area of the house for providing everyday needed by every household. By the calculation of the dimensions as needed every day obtained the valid dimension is 12m in length , 5m in width and 2.5m in depth.