Water Quality Status of Omang Pond in Gunungsewu Karst Area, Gunungkidul, Indonesia

The Gunungsewu Karst Area has a unique hydrological system with limited surface water resources, especially in dry seasons. Karst ponds, thereby, play an essential role in meeting the local water needs. Omang is a karst pond used intensively for bathing and washing, which is thought to decrease wate...

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Main Authors: Kusumawati S., Widyastuti M.
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/105/e3sconf_icstugm2023_08009.pdf
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author Kusumawati S.
Widyastuti M.
author_facet Kusumawati S.
Widyastuti M.
author_sort Kusumawati S.
collection DOAJ
description The Gunungsewu Karst Area has a unique hydrological system with limited surface water resources, especially in dry seasons. Karst ponds, thereby, play an essential role in meeting the local water needs. Omang is a karst pond used intensively for bathing and washing, which is thought to decrease water quality. The research objectives were (1) to determine the characteristics of the pond, (2) to analyze the pond water quality, and (3) to assess the water quality status. Water quality analysis was conducted at several points selected by purposive random sampling. Temperature, pH, DO, and TDS were measured directly in the field, while nitrate, phosphate, turbidity, BOD, and fecal coliform were tested in the laboratory. Also, the National Sanitation Foundation-Water Quality Index (NSF-WQI) was employed to assess the water quality status. Results showed that the pond has a shallow depth, making the bottom sediment prone to mixing, and a volume of 4,706.09 m3. Per Governor Regulation Number 20 of 2008, DO, BOD, nitrate, phosphate, and pH exceeded their respective upper limits for class II purposes. In contrast, temperature, turbidity, TDS, and fecal coliform met the recommended standards. Based on the NSF-WQI values, the status of the pond water quality was moderately polluted.
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spelling doaj.art-4fd2367259e74b04b8cfbea0bf3b37192024-01-26T10:44:49ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014680800910.1051/e3sconf/202346808009e3sconf_icstugm2023_08009Water Quality Status of Omang Pond in Gunungsewu Karst Area, Gunungkidul, IndonesiaKusumawati S.0Widyastuti M.1Department of Environmental Geography, Faculty of Geography, Universitas Gadjah MadaDepartment of Environmental Geography, Faculty of Geography, Universitas Gadjah MadaThe Gunungsewu Karst Area has a unique hydrological system with limited surface water resources, especially in dry seasons. Karst ponds, thereby, play an essential role in meeting the local water needs. Omang is a karst pond used intensively for bathing and washing, which is thought to decrease water quality. The research objectives were (1) to determine the characteristics of the pond, (2) to analyze the pond water quality, and (3) to assess the water quality status. Water quality analysis was conducted at several points selected by purposive random sampling. Temperature, pH, DO, and TDS were measured directly in the field, while nitrate, phosphate, turbidity, BOD, and fecal coliform were tested in the laboratory. Also, the National Sanitation Foundation-Water Quality Index (NSF-WQI) was employed to assess the water quality status. Results showed that the pond has a shallow depth, making the bottom sediment prone to mixing, and a volume of 4,706.09 m3. Per Governor Regulation Number 20 of 2008, DO, BOD, nitrate, phosphate, and pH exceeded their respective upper limits for class II purposes. In contrast, temperature, turbidity, TDS, and fecal coliform met the recommended standards. Based on the NSF-WQI values, the status of the pond water quality was moderately polluted.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/105/e3sconf_icstugm2023_08009.pdf
spellingShingle Kusumawati S.
Widyastuti M.
Water Quality Status of Omang Pond in Gunungsewu Karst Area, Gunungkidul, Indonesia
E3S Web of Conferences
title Water Quality Status of Omang Pond in Gunungsewu Karst Area, Gunungkidul, Indonesia
title_full Water Quality Status of Omang Pond in Gunungsewu Karst Area, Gunungkidul, Indonesia
title_fullStr Water Quality Status of Omang Pond in Gunungsewu Karst Area, Gunungkidul, Indonesia
title_full_unstemmed Water Quality Status of Omang Pond in Gunungsewu Karst Area, Gunungkidul, Indonesia
title_short Water Quality Status of Omang Pond in Gunungsewu Karst Area, Gunungkidul, Indonesia
title_sort water quality status of omang pond in gunungsewu karst area gunungkidul indonesia
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/105/e3sconf_icstugm2023_08009.pdf
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