Bimbingan Teknis tentang Identifikasi Air Tanah untuk Pasokan Air Berkelanjutan di PSDKU Lumajang, Jawa Timur, Indonesia
DOI:
https://doi.org/10.58812/jpws.v5i10.3990Kata Kunci:
Air Tanah, Identifikasi Akuifer, Pengabdian kepada Masyarakat, Pasokan Air Berkelanjutan, Jawa Timur, IndonesiaAbstrak
PSDKU Lumajang adalah kampus pendidikan seluas 5,3 hektare yang terletak di Desa Jogoyudan, Kabupaten Lumajang, Jawa Timur. Kampus ini mengandalkan lima sumur bor untuk pasokan airnya; namun, semua sumur bor mengalami kekeringan selama musim kemarau (April–Oktober), sehingga mahasiswa dan staf tidak memiliki air bersih yang memadai. Kegiatan pelayanan masyarakat ini bertujuan mengidentifikasi zona potensial air tanah menggunakan metode resistivitas geoelektrik (konfigurasi Schlumberger dan Wenner) di tujuh jalur survei (L1–L7) dengan kedalaman identifikasi hingga 200 meter. Hasil interpretasi tujuh penampang resistivitas menunjukkan zona akuifer prospektif dengan nilai resistivitas 25–60 Ωm, yang menunjukkan adanya lapisan breksi vulkanik yang terlapuk dan tufa pasir jenuh air. Zona dengan potensi air tanah tertinggi diidentifikasi pada Jalur L2 pada titik pengukuran 4–7, pada kedalaman sekitar 95–180 meter, dan pada Jalur L3 pada titik 3–6, pada kedalaman sekitar 100–160 meter. Zona-zona ini diinterpretasikan sebagai lapisan akuifer produktif utama. Hasil survei memberikan dasar ilmiah untuk merencanakan titik pengeboran sumur baru guna memastikan pasokan air bersih yang berkelanjutan di PSDKU Lumajang.
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Hak Cipta (c) 2026 Gregorius Aryoko Gautama, Dandung Novianto, Trias Rahardianto, Marjono Marjono, Diah Lydianingtias, Nabila Ayu Sabrina
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