ANALISIS KUALITAS AIR SUNGAI BRINGIN KOTA SEMARANG DENGAN METODE NSF – IKA (Studi Kasus Sungai Bringin Pada Tanggal 10 Juli 2014 )

Suryo Ari Wibowo, Winardi Dwi Nugraha, Endro Sutrisno

Abstract


Geographically DAS Bringin is located between 110o17 ' 30 "110o21 ' LS-LS 100" and 7o4 ' 00 "E-6o50 ' 00 BT. Bringin River is a river that flows in the region West of Semarang, ranging from Sub Mijen Subdistrict and Ngaliyan, and Tugu sub-district of 1,355 (flows continue to kea rah Java Sea). If seen from the topography of the area wide Bringin WATERSHED/catchment area of 32.8 km2 with a river length of 22,26 miles. the purpose of this research is to analyze the level of River water quality by using method Bringin National Sanitation Foundation's water quality Index (NSF-IKA) and also analyzes the influence of conditions of land use coverage River basin water quality against Bringin Bringin River. Results calculation of the NSF-IKA from upstream to downstream River Bringin obtained the following results for the upstream segment score of 71,15 with good quality category, segment 1 score of 61,35 with medium quality, segment 2 score 48,47 with a category of bad quality, segment 3 score of 51,99 with category medium quality, category 4 segment score of 48,78 category with bad quality, segment 5 score of 50,02 with bad quality category, 6 segments, specifically to segment 6 is divided into 2 segments again which is a tributary of the segment and the segment 6 itself was a meeting between the tributary of the segment with segment 5. The result of his score is a tributary of the segments 52,04 with a category of medium quality, segment 6 is scores of 51,51 with medium quality, category 7 segment score of 53,94 category with medium quality, segment 8 score of 50,03 category with bad quality, segment 9 score of 48,64 with a category of poor quality, and the last segment of the segment of 10 score of 47,84 with a category of worse quality.

Keywords


River National Sanitation methods, Bringin Foundation's water quality Index (NSF-IKA), water quality

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