EN 
IN
Journal article
Aquifer Hydraulics Parameters Determination regarding One Well Base on Geolistric Data (A Case Study in Bugbug Karangasem Bali)
I NENGAH SIMPEN I NYOMAN SUTARPA SUTAMA I WAYAN REDANA Dr. Siti Zulaikah, M.Si
Volume : 3 Nomor : 4 Published : 2017, July
International Research Journal of Engineering, IT and Scientific Research (IRJEIS)
Abstrak
Aquifer parameters knowledge was necessary for interpreting the aquifer state. It included porosity (?), hydraulic conductivity (K), specific storativity (Ss), storativity (S) and transmissivity (T). There were some methods for knowing the aquifer hydraulics parameters was Chow Method, Jacob Method, and Theis Method. These methods employed two wells i.e. one as test wells and another one monitored well for monitoring the water depth. The one assumption in this method was the aquifer equal thickness to the infinite width. What if the aquifer has an unequal thickness and limited width as well as on aquifer with buried veins or trenches? A research has been conducted to determinethe aquifer hydraulic parameters with a single geoelectric on data-based wells. The steps that were taken i.e. firstly was measured by geoelectric method currently place to know the magnitude of aquifer resistivity/conductivity. Secondly, drilling was carried out in the place of the suspected aquifer. Thirdly, it was the water conductivitymeasurement obtained from the aquifer. After the measurement of aquifer resistivity with the geoelectric method, it was found that the aquifer conductivity was 0.0325 S/m, the water conductivity was 0.02 S/m. The step draw-down test was done in five levels of discharge. The hydraulics parameter was calculated using a single well. The results of the analysis was obtained aquifer porosity (?) 36,90%, hydraulic conductivity (K) 0,00368 m/s transmissivity (T) 0,05792 m2/s, specific storage (Ss) 9,7358 10-4 / m, storativity (S) 0,0055883. Keywords: Aquifer; Single Well; Hydraulics Parameter;