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All Journal Jurnal Teknik Pengairan: Journal of Water Resources Engineering
Lily Montarcih
Jurusan Teknik Pengairan Fakultas Teknik Universitas Brawijaya
Engineering

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Studi Penentuan Skala Prioritas Berdasarkan Kinerja Jaringan Irigasi Pada Jaringan Irigasi Batujai, Gde Bongoh, Dan Sidemen Di Kabupaten Lombok Tengah Supriyono, Supriyono; Rispiningtati, Rispiningtati; Montarcih, Lily; Sayekti, Rini Wahyu
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

West Nusa Tenggara Province is a national food barn, and it is not surprising because of most people in this province are working in agriculture sector. The Ministry of Public Work, through its Public Work Official at West Nusa Tenggara Province and also River Region Bureau of West Nusa Tenggara I, has allocated the budget to finance the irrigation network every year in order to improve agriculture production. This research is a case study of the performance of the irrigation network. The performance is measured to help the determination of the priority scale of the management of irrigation network. The study area is located at irrigation regions of Batujai, Gde Bongoh and Sidemen. These three regions are under the work region of Water Official of Central Lombok District. Batujai irrigation network has 3,315 ha wide with water sufficiency rate (Factor K) of 58.33 %. Gde Bongoh irrigation network has 2,644 ha wide with water sufficiency rate of 66.67 %. Sidemen irrigation network has 3,315 ha wide with water sufficiency rate of 95.83 %. The assessment methods are based on The Decree of The Minister of Public Work No.32/PRT/M/2007. Result of the assessment indicates that Batujai and Gde Bongoh irrigation network are in low performance category with the point 65,67% and 67,60% respectively.Therefore that need improvement on the area of increase the field of personnel management and organizational management of Farmer Water User Association (P3A). Whereas Sidemen irrigation network is in good performance category with the point of 73.68 %.Keywords: Priority Scale, Factor K, Water Sufficiency, Irrigation Performance
Analisa Kuantitas Dan Kualitas Airtanah Di Kabupaten Mojokerto Pranowo, Harri; Sholichin, Moh.; Montarcih, Lily
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Groundwater is one of the many alternative sources of water that has a large quantity and good quality. In the research area at Mojokerto regency, groundwater utilizing for irrigation but the use is limited, so it doesn’t cause environmental damage. This study aims to determine the quantity and quality of groundwater within the aquifer test, well test, and groundwater chemical test. For the aquifer test, this study use Long Period Test method to determine the type of flow between the steady state flow or unsteady state flow with the characteristics of confined aquifer, for well test in this research use step test method or step drawdown test method to determine the ability of wells production and the water quality test to determine the groundwater chemical characteristics with wilcox diagram and trilinier piper method with Aquachem 2011.1 demo version software. The results on the Mojokerto deep well (SDMJ) with an average depth of 100m - 120m including confined aquifer type, the existing discharge between 1.00 ltr / sec to 14.00 liters / sec, discharge potential between 2.33 ltr / sec to 33.07 liters / sec, optimum discharge between 3.90 ltr / sec to 19.80 liters / sec, for transmissivity values between 132.489 m 2 /day to 2047.140 m 2 /day, for the value of sea water intrusion (R) between 0.0727 meq / liter - 0.26027 meq / liter, on wilcox diagram the quality of water is in the (C2-S1) groups – with classification "Good" for agriculture. From the research result, the average quantity and the quality of groundwater wells pump is very good for agriculture.Keyword : Groundwater quality and quantity, aquifers, wells discharge, groundwater chemical, Aquachem version 2011.1 (demo version).
Co-Authors Harri Pranowo Jamhari Jamhari Moh. Sholichin Rini Wahyu Sayekti Rispiningtati Rispiningtati