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Arah dan Kecepatan Aliran Air Tanah Calon Tapak Disposal Demo di Kawasan Nuklir Serpong
DOI: http://dx.doi.org/10.55981/eksplorium.2016.3073
Abstract
ABSTRAK
Rencana pembangunan dan pengoperasian fasilitas disposal demo di Kawasan Nuklir Serpong memerlukan pengkajian keselamatan untuk memberikan bukti ilmiah bahwa fasilitas tersebut aman bagi keselamatan manusia dan lingkungan. Hasil dari pengkajian keselamatan tersebut digunakan sebagai dasar pemberian izin lingkungan untuk pembangunan dan pengoperasian fasilitas tersebut. Salah satu data tapak yang diperlukan dalam pengkajian keselamatan adalah arah dan kecepatan aliran air tanah. Oleh karena itu dilakukan penelitian untuk mengetahui arah dan kecepatan aliran air tanah pada zona akuifer bawah calon tapak disposal demo di Kawasan Nuklir Serpong. Penelitian dilakukan dengan menggunakan perunut (tracer) Rhodamin WT. Perunut dilepas pada sumur bor utama (SBU) dan dipantau pada lubang bor (sumur bor pantau) SBP-1 (A), SBP-2 (B), dan SBP-3 (C). Dari hasil analisis contoh air dan analisis keruangan diperoleh data arah aliran air tanah pada kedalaman 16 m ke arah N 240º E (barat-barat daya) dengan kecepatan antara 0,35 m/hari sampai dengan 0,48 m/hari.
ABSTRACT
Plan for construction and operation of demo disposal facility in Serpong Nuclear Area requires safety assessments to provide scientific evidence that the facility is safe for human and the environment. The result of the safety assessment is used also as a basis for granting environmental permits for the construction and operation of the facility. One of the site data requirements on the safety assessment is the direction and velocity of groundwater flow. Therefore, a study to determine the direction and velocity of groundwater flow at lower zone aquifer of demo disposal site candidate in Serpong Nuclear Area conducted. The research was carried out by using Rhodamin WT tracer. The tracer released in the main well (SBU) and monitored in SBP-1 (A), SBP-2 (B), and SBP-3 (C) boreholes. Based on the water samples and spatial analysis, groundwater data flow direction at a depth of 16 m towards N 240º E (west-southwest) with a velocity of 0.35 m/day up to 0.48 m/day obtained.
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