Studi Penentuan Sumur Resapan Sebagai Upaya Pengendalian Banjir Di Kota Pekalongan Berbasis Sistem Informasi Geografis

Abstract

Population and socio-economic growth trigger changes in land use functions. Land use and 
 climate change in line with the increase in the rate of surface water and a decrease in the quality of 
 water infiltration into the soil. Decreasing water absorption triggers an abundance of water on the 
 surface which leads to hydrometeorological disasters, one of them is flooding. The research study
 is in Pekalongan City which has a very flat topography a nd the estuary area of several rivers from 
 the upstream area. The current condition of Pekalongan City has a huge potential for flood 
 disaster. The purposes of this study are to measure the depth of the groundwater level, to delineate 
 the flooding area, and to recommend the infiltration wells based on the Geographic Information 
 System. The methods were hydrogeological mapping, including the measurement of the water 
 table, collecting land use maps, delineating flooding zone, calculating impermeable zones, 
 collecting hydrological data such as precipitation . The results show that the groundwater level at 
 the research location is classified into 3 classes, namely 0 -1.5 meters, 1.5-3 meters, and > 3 
 meters. The need for infiltration wells in the flood-prone areas of Pekalongan City is 57,718 units. 
 The needs for rainwater infiltration wells in areas outside flood -prone areas and groundwater 
 depth> 1.5 meters are 227,416 units with a well's depth between 1.5 to 4 meters.
 Keywords: Infiltration well, hydrometeorological, disaster Pekalongan City

Zonation of critical water distribution based on meteorological water balance in Coastal Areas of Pekalongan City

“…This is because land use is dominated by residential areas, followed by ponds and swamps. In addition, the location of the area close to the coast causes groundwater to be classified as plain groundwater, with most of it being shallow groundwater with a depth of less than 1.5 m [31]. The tidal floods that often hit the coastal areas of Pekalongan City also impact the reduction of paddy fields.…”

Penerapan Konsep Water Sensitive Urban Design Untuk Mewujudkan Permukiman Pesisir Kota Pekalongan Yang Tangguh

“…Penyusun jenis akuifer ini adalah berupa formasi aluvial dengan material lempung, lanau, pasir, kerikil dan brangkal. Air tanah wilayah Kota Pekalongan tergolong air tanah dataran pantai sehingga sebagian besar kondisi air tanah merupakan air tanah dangkal dengan kedalaman kurang dari 1,5 meter (Putranto et al, 2020). Sumber air baku Kota Pekalongan untuk pemenuhan air bersih berasal dari Kota Pekalongan, Kabupaten Pekalongan, dan Kabupaten Batang.…”

Studi Penanganan Genangan Banjir Dan Rob Sungai Meduri-Bremi Kota Pekalongan

“…Hubungan antara luas permukaan, volume tampungan dan kedalaman air dapat dilihat pada Gambar 15. Menurut (Putranto, Hadiyanto, & Hati, 2020) kebutuhan sumur resapan untuk menampung limpasan dan genangan air hujan pada wilayah rawan banjir Kota Pekalongan yaitu 57.718 unit dan di luar area banjir sebanyak 227.416 unit. Apabila luas wilayah Kota Pekalongan 45,25 km 2 dibagi dengan kebutuhan sumur resapan akan diperoleh jarak rata-rata antar sumur resapan sebesar 12,6 m, yang sulit untuk dilaksanakan.…”