EVALUATION OF THE VOLUME OF INFILTRATED WATER IN THE UPSTREAM OF THE CEMPAKA RETENTION BASIN IN BANJARBARU CITY

Muhammad Zakaria Anshari, Novitasari Novitasari

Abstract


Cempaka Subdistrict experienced severe floods in 2021, resulting from the worst impact on the surrounding area. The Cempaka Retention Basin (a.k.a “Embung”) in Banjarbaru City is an artificial pond that is used to protect an upstream area of Cempaka Subdistrict in Banjarbaru City from flooding and inundation. This study aims to analyze the volume of infiltrated water that penetrates the pond and analyze the area of infiltrated water based on the infiltrated water rate in the pond area.

In this research, the collection of data includes land elevation, photos and location coordinates, and data from infiltration rate measurements. The infiltration rate measurement was conducted using a double-ring infiltrometer (turf tec infiltrometer). The analytical methods used in this study were the Horton Method. The test was carried out three times at the same time and on different dates at two points located in the inflow and outflow of The Cempaka Retention Basin.

Based on the analysis of this study, it can be concluded that the first test and the third test have the same infiltration rate classification, while the second test has a different infiltration rate classification. This is influenced by differences in land conditions when testing in the field.

 

Keywords: Infiltration Rate, Horton Method, Flood, The Cempaka Retention Basin

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References


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DOI: https://doi.org/10.20527/crc.v8i4.13403

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