Geologi dans tudi kualitasair tanah daerah Sidokumpul dan sekitarnya Kecamatan Patean,Kabupaten Kendal Provinsi Jawa Tengah

Khotimah 410016122, Khusnul (2023) Geologi dans tudi kualitasair tanah daerah Sidokumpul dan sekitarnya Kecamatan Patean,Kabupaten Kendal Provinsi Jawa Tengah. Other thesis, Institut Teknologi Nasional Yogyakarta.

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Abstract

The research area is included in the Geological Map Sheet of Magelang and Semarang, sheet numbers 1409-2 and 1408-5 with a map scale of 1: 100,000 (Thanden et al, 1996), while on the Topographic Map of Indonesia Scale 1: 25,000 it is included in the Sukorejo sheet with sheet number 1408-533 and Kaliwesi sheet with sheet number 1408-534 (National Survey and Mapping Coordinating Agency, 1998). Geographically, based on the UTM (Univeral Transfer Mercator) WGS 84 Zone 49S coordinates, the study area is at coordinates401575mT–407575mT,9215600mU–9224600mU.
The geomorphological aspects of the study area are divided based on slope gradient and height difference (Van Zuidam and Van Zuidam - Cancelado, 1979) and morphogenesis (Van Zuidam, 1983) into: Floodplain geomorphological unit (F3), Fluvial plain topographic geomorphological unit (F1), Floodplain geomorphological unit (F1), Fluvial plain topographic geomorphological unit (F1), denudational topographical geomorphology of weak-medium wavy hills (D1), volcanic geomorphological unit of weak-medium wavy hills (V1),geomorphologicalunitofstrongcorrugatedhills-structuraltopography(S1).
Stratigraphically the study area was divided based on the unofficial SSI lithostratigraphy (Martodjojo, S. and Djuhaeni, 1996) lithological variations from old to young were found including: Kerek claystone-carbonate units, Kaligetas breccia-andesite units,Damarandesiteconglomerateunits,andcobble-stonedeposits-clay.
The geological structure that develops in the research area is the Sojometro anticline fold structure. The case study conducted in the research area was regarding the quality of groundwaterin theresearcharea which refers toPermenkes 2017 No.37 concerninghygienic water when viewed from physical, chemical and biological parameters obtained from both water samples in the Kaligetas breccia-andesite unit and the Damar conglomerate-andesite unitwhichdeclaredtomeetthefeasibilitystandard,whiletheclaystone-carbonateKerekunit did not meet the biological standard because sample 3 had been contaminated by biological bacteria, biological bacterial contamination was caused by land already used for farming or existingactivehumanactivitiessothatbacteriacontaminategroundwateraroundtheland.

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