<![CDATA[Abstrak Kabupaten Tulungagung merupakan wilayah yang banyak mendapatkan hujan. Pernyataan ini diperkuat dengan adanya data curah hujan tahun 2016 yang menunjukkan curah hujan rata-rata sebesar 256,87 mm/bulan. Namun demikan di wilayah Kabupaten Tulungagung terdapat beberapa wilayah yang berpotensi kekeringan. Hal ini sejalan dengan pernyataan Badan Nasional Penanggulangan Bencana menyatakan Wilayah Kabupaten Tulungangung memiliki tingkat resiko kekeringan yang tinggi, dengan adanya permasalahan tersebut penelitian ini dilakukan untuk mengetahui besar daya dukung air meteorik untuk pemenuhan kebutuhan air domestik pada masing- masing region morfologi di Kabupaten Tulungagung. Analisis daya dukung air didasarkan pada kemampuan wilayah tersebut dalam mendukung kebutuhan manusia. Daya dukung suatu wilayah dalam menyediakan air ditentukan dari asupan curah hujan, yang menentukan jumlah air permukaan maupun air bawah permukaan. Jumlah air yang tersedia ditentukan berdasarkan kebutuhan air domestik dan jumlah penduduk. Penelitian ini menggunakan metode penelitian survei. Teknik wawancara terstruktur digunakan untuk menggali data penggunaan air domestik masyarakat di daerah penelitian. Unit penelitian didasarkan pada region morfologi yaitu wilayah vulkan wilis, dataran aluvial, dan lipatan selatan. Hasil penelitian menunjukkan perhitungan neraca air dan diperoleh nilai ketersediaan air wilayah: Vulkan 446383,12 juta liter/tahun; Dataran aluvial 255675,82 juta liter/tahun; Lipatan 218914,51 juta liter. Potensi air meteorik Kabupaten Tulungagung jika dilihat dari hasil perhitungan daya dukung air masih mampu mencukupi kebutuhan air domestik penduduknyaa sampai 7x lipat dari jumlah penduduk yang ada sekarang. Terdapat wilayah yang masih mampu menyokong kebutuhan air domestik penduduknya sampai lebih dari 50x lipat dari jumlah penduduknya yang ada sekarang. Secara kuantitas ketersediaan air di daerah penelitian sangat melimpah, namun distribusi waktu hujan dipengaruhi oleh musim sedangkan kebutuhan air domestik yang cenderung tetap bahkan meningkat sehingga perbandingan keduanya tidak tepat. Perlu diwaspai pada bulan-bulan kering (Juli, Agustus, dan September) dapat terjadi kekurangan pasokan air meteorik. Kata kunci: air meteorik, ketersediaan air, kebutuhan air domestik, daya dukung air, Kabupaten Tulungagung Abstract Tulungagung district is an area with a high rainfall. This statement was supported by rainfall data in 2016 which showed the average rainfall data was about 256,87 mm/month. However, some areas in Tulungagung district had a potential drought. It was in line with the statement of National Disaster Management Agency (Badan Nasional Penanggulangan Bencana) that Tulungagung district had the high level of drought risk. Thus, from that problem, this research was conducted to know the carrying capacity of meteoric water to fulfill the domestic water requirements in each morphology region in Tulungagung district. The analysis of water carrying capacity was based on the ability of the region in supporting human needs. The carrying capacity of a region in providing water was determined by the rainfall intake, which determined the amount of surface water and subsurface water. The amount of water availability was determined based on the domestic water requirements and the total populations. This research used survey research method. The Structured interview technique was used to identify the data of domestic water used by the residents in the research area. The research unit was based on the morphology region such as volcano wilis area, alluvial area, and southern fold area. The result showed that the calculation of the water balance and was obtained the value of water availability area: volcano was 446383,12 million litre/year; alluvial was 255675,82 million litre/year; southern fold was 218914,51 million litre. From the calculation of water carrying capacity, it could be seen that Meteoric water potential of Tulungagung district was still able to fulfil domestic water requirements of its populations up to seven times from the total current population. Moreover, there were areas which still supported up to more than 50 times from the total current populations. Based on the quantity, the water availability in this research area was quite abundant, but because of the spreading of rain was influenced by the season, while the domestic water requirement which tended to be constant even increased made the comparison both of them is not exact.In the dry months (such as July, August and September), The decrease of meteoric water supply should be worried about. Key words: meteoric water, water availability, domestic water demand, water carrying capacity, Tulungagung Regency]]>
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