Status Mutu Sungai dengan Metode SingScore di Daerah Aliran Sungai Percut Provinsi Sumatera Utara

Abstract

The Percut River Basin is a River Basin located in Medan, North Sumatra which flows from the upstream area, namely Sibolangit District in Karo Regency, crossing Medan City and heading to the downstream area in Percut Sei Tuan District, Deli Serdang Regency. This study aims to determine the structure of the macroinvertebrate community in the Percut River Basin, to determine the spatial distribution of macroinvertebrates in the Percut River Basin, to determine the quality of waters with the SingScore method in the Percut River Basin. The method used in determining the research station is Purposive Sampling, namely Sampling is carried out at 21 stations, namely the upstream, middle and downstream parts. Sampling is carried out once at each station. Sampling was carried out at 2 points at each station, namely on the edge and middle of the river body. The results of the study obtained the structure of the macroinvertebrate community along the Percut River Basin found 41 species and 30 families. The spatial distribution of macroinvertebrates found in the Percut River Basin in the upstream section is 23 families with 31 macroinvertebrate species. The water quality status in the Percut River flow based on the SingScore method in the upstream section has a very good category and the middle to downstream parts of the Percut River have a bad category.