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All Journal Jurnal Lahan Suboptimal Jurnal Teknik ITS IPTEK Journal of Proceedings Series Geosfera Indonesia Sebatik ASEAN Journal on Science and Technology for Development
Mardyanto, Mas Agus
Departemen Teknik Lingkungan Institut Teknologi Sepuluh Nopember Surabaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Engineering Environmental Science Mathematics Social Sciences

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Journal : ASEAN Journal on Science and Technology for Development

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Hydrogeochemical Analysis of Unconfined Groundwater in the Surrounding Salt Farming Areas of Pademawu, Madura, Indonesia Wisnu Arya Gemilang; Ulung Jantama Wisha; Mas Agus Mardyanto
ASEAN Journal on Science and Technology for Development Vol. 39 No. 2 (2022): Green Economy
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29037/ajstd.793

Abstract

The Pademawu coast has rapidly transformed into salt ponds, causing seawater intrusion and pollution. This study aims to examine the quality of groundwater in the surrounding settlement area of Pademawu and assess its eligibility for daily use. The psychochemical parameters of groundwater are measured in situ. Groundwater samples from several stations are analyzed in the laboratory and used to collect several chemical compounds, including Ca2+, Mg2+, Na+, K+, HCO3-, Cl-, SO42-, Fe2+, Mn2+, F-, NO2-, NO3, and CaCO3. The detected concentrations are then used to calculate TH, sodium adsorption ratio (SAR), %Na, PI, KR, and MH. Hydrochemical calculation and interpretation are also performed. The groundwater characteristics are determined according to TDS, conductivity, and water quality index (WQI). Results showed that the groundwater facies are predominated by Ca-HCO3 (50%) in the northern and middle study areas and Na-Cl (37%) in the salt farming area. The groundwater is categorized as SAR (C2S1) in the north and SAR (C4S2) in the south. The primary groundwater consists of Na+ and Cl- (dominant cation and anion) originating from salt farming. The TDS in the salt farming area ranges from 1000 mg/L to 3000 mg/L (slightly saline). The WQI ranges from 39.0 to 735.4, which encompasses excellent water, good water, very poor water, and unsuitable for consumption. Salt farming infiltration toward unconfined aquifers is the primary factor causing groundwater pollution. Mitigation efforts to minimize scattered infiltration must be applied in the Pademawu Subdistrict by modifying the system between salt farming and settlement areas.
Co-Authors Adhi Yuniarto Ali Masduqi Fairuz Nadia Fauziah Raya Shinta Halif Akbar Ibadah Hermawan, Wirda Pratomo Bagus Irwan Bagyo Santoso Januar Catur Putranto Januar Catur Putranto Made Urmylla Lyyasintha Sunaya Meralda Rose Dewi Muhammad Ario Baskoro Neneng Amel Hizni’am Nieke Karnaningroem Pramudita Triatmojo Ulung Jantama Wisha Ulung Jantama Wisha Wisnu Arya Gemilang Wisnu Arya Gemilang