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All Journal Media Komunikasi Geografi Forum Geografi
Maryadi Budi Wiyono
Universitas Gadjah Mada
Earth & Planetary Sciences Education Social Sciences

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Analisis Ketersediaan Airtanah dengan Metode Statis di Pulau Pasaran Maryadi Budi Wiyono; Tjahyo Nugroho Adji; Langgeng Wahyu Santosa
Media Komunikasi Geografi Vol. 21 No. 2 (2020)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/mkg.v21i2.30259

Abstract

Pulau Pasaran adalah sistem daratan terpisah yang minim sumberdaya airtanah. Jumlah airtanah yang sedikit menjadi sangat rentan hilang akibat konsentrasi unsur cemaran yang tinggi di lingkungan dan pengaruh air laut. Tujuan penelitian ini yaitu: menganalisis ketersediaan airtanah dan kebutuhan air domestik di Pulau Pasaran. Investigasi ketersediaan airtanah dikaji dengan metode ketersediaa air statis. Investigasi kebutuhan air domestik dikaji dengan metode berbasis data sekunder memanfaatkan data hasil survei Ditjen Sumberdaya Air Kementerian Pekerjaan Umum dan Perumahan Rakyat Indonesia. Hasil penelitian menunjukkan bahwa ketersediaan airtanah di Pulau Pasaran sebesar 179359,74 liter per tahun, sementara hasil aman untuk airtanah yang dapat diambil per tahun adalah 14072,84 liter atau 38,5 liter per hari. Kebutuhan air domestik di Pulau Pasaran tahun 2020 berdasarkan hasil analisis ialah sebesar 74040 liter per hari, sehingga dapat disimpulkan bahwa potensi ketersediaan airtanah untuk mendukung kebutuhan air domestik di Pulau Pasaran ialah buruk. Upaya pengelolaan berbasis rainwater harvesting menjadi pilihan yang tepat dalam skala pulau kecil.
Analysis of Groundwater Quality for Clean Water Supply in Pasaran Island, Bandar Lampung City, Indonesia Maryadi Budi Wiyono; Tjahyo Nugroho Adji
Forum Geografi Vol 35, No 1 (2021): July 2021
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v35i1.12270

Abstract

Pasaran is the only productive small island functioning as the anchovy and green clam production center in Bandar Lampung. Its water use has, however, increased since its designation as an economically fishery-based development area or minapolitan in 2012. This is due to the fact that groundwater resources in small island ecosystems surrounded by seawaters with a narrow diameter are easily affected by the insistence of seawater. Moreover, population pressure and land-use change are also feared to be affecting groundwater quality. Therefore, this research was conducted to analyze and evaluate groundwater resource quality in Pasaran Island using five wells on the entire island as sampling points selected based on census. The samples were tested for physical, chemical, and biological parameters in the laboratory and compared with water quality standards (Minister of Health’s Regulation No. 32/2007). The results showed relatively low water quality because the samples contained up to 3900 μS/cm salinity, 3771.9 mg/l chlorides, 31.7–141.52 mg/l nitrates, and 6.8–170 MPN/100ml total coliform which exceed the standards for drinking water. Meanwhile, wells 1, 4, and 5 were found to be safe for sanitation-hygiene purposes and well 1 was suitable for public baths even though they are not of drinking quality. This means the groundwater quality generally met Class II-water requirements for clean water supplies.
Co-Authors Langgeng Wahyu Santosa Tjahyo Nugroho Adji