PERHITUNGAN POTENSI AIR TANAH DI KECAMATAN GABUS WETAN, KABUPATEN INDRAMAYU, JAWA BARAT
ABSTRACT: Gabus Wetan
Subdistrict, Indramayu District in West Java Province known as one of rice
production center in Indonesia has common problem of surface irrigation water
that is unavailable in dry season. It necessary to find alternative water
source from groundwater to increase harvest productivity. The aims of this
study were to determine geoelectrical-hydrogeological profiles in form of
distribution characteristics of the aquifer indicated by the resistivity of
rocks, to determine hidraulic conductivity and to calculate the groundwater
potential in Gabus Wetan, Indramayu District. Resulted information can then be
used to exploit groundwater for alternative supply of irrigation water. The
result of this study shown that the rock resistivity in the area ranging
between 1-30 Ωm. The rock aquifers consist of sandy clay, clayey sand, and sand.
The shalllow groundwater (unconfined aquifer) are in the range of 3-30 meters
below the soil surface having tickness of aquifer in the range of 7-20 meters.
The deep groundwater (confined aquifer) can be estimated at the depth of more
than 60 meters below the soil surface having tickness more than 40 meters. The
hydraulic conductivity is estimated 20 m/day for unconfined aquifer and
confined aquifer. The predicted groundwater storage of unconfined aquifer was
about 31,687.2 m3/day or 0.37 m3/sec and confined aquifer 99,382.6 m3/day or
1.15 m3/sec.
Penulis: Septian Fauzi Dwi
Saputra, Roh Santoso Budi Waspodo, Budi Indra Setiawan
Kode Jurnal: jptsipildd160364
