Identifikasi Keberadaan Intrusi Air Laut pada Kawasan Pemukiman di Sekitar Pesisir Pantai Daerah Desa Sukajaya Lempasing Kecamatan Teluk Pandan

Abstract

Sukajaya Lempasing is one of the villages located in Teluk Pandan District, Pesawaran Regency, Lampung Province. Sukajaya Lempasing Village was chosen as a place for research because of its position on the east coast which is directly adjacent to Lampung Bay, of which its groundwater is suspected to be contaminated by seawater, causing the water to be brackish. Field observation, data collection, as well as lithology and air control are needed to see the geological and hydrogeological conditions of this area. Based on the physical and chemical parameters, the well of Hamlet 7 has groundwater and there is no indication of sea water intrusion because the area is very close to hills which may become a catchment area so that groundwater flows out to sea with high pressure. Based on the salinity, TDS, and conductivity values ​​obtained, the well that experienced seawater intrusion was the AJR3 well because it is located closest to the coastline and is supported by an alluvial sediment aquifer that has moderate to high aquifer productivity. The quality of water based on physical parameter data from wells in Hamlet 1, Hamlet 7 and sample AJR4 Hamlet 3 is classified as clean and suitable for daily use. The lithology in the form of alluvial deposits allows seawater intrusion, especially in areas close to the shoreline such as the AJR3 well.

Kondisi Eksisting Intrusi Air Laut Di Pesisir Latuhalat, Pulau Ambon

“…Selain itu, topografi yang relatif landai didukung endapan aluvial dengan permeabilitas yang rendah meningkatkan resiko intrusi air laut (Joesidawati, 2017). Radityo et al (2020) juga menemukan intrusi air laut terjadi pada daerah yang berdekatan dengan garis pantai didukung dengan akuifer endapan aluvial yang memiliki produktivitas akuifer sedang hingga tinggi.…”

Kajian Intrusi Air Laut Di Pesisir Latuhalat, Kecamatan Nusaniwe, Kota Ambon

“…Selain itu, Joesidawati (2017) menemukan bahwa topografi suatu daerah yang relatif landai didukung endapan aluvial dengan permeabilitas yang umumnya rendah meningkatkan resiko intrusi air laut [5]. Radityo dkk (2020) juga menemukan intrusi air laut terjadi pada daerah yang berdekatan dengan garis pantai didukung dengan akuifer endapan aluvial yang memiliki produktivitas akuifer sedang hingga tinggi [6].…”

Study on the Influence of Salinity, TDS, GWL and Land Use in the Coastal Region of Kebumen Regency with a Statistical Approach

“…The definition of seawater intrusion is the infiltration or entry of seawater into the pores of rock and/or soil, thereby contaminating the groundwater conditions contained within it. Seawater intrusion occurs when seawater enters the empty rock pores as a result of extensive groundwater usage [1].…”