Abstract:
Population growth and development activities make the need for clean water sourced from groundwater in Kotabaru regency increases. The purpose of this research is to find out the condition of water discharge and water level, analyze the relationship between water discharge and water level, analyze the amount of suspension charge in the Watershed Sebelimbingan Kotabaru Regency. Water discharge measurement is done by measuring river currents in three observation points, namely upstream, central and downstream. The method used is using buoys and accompanied by measurements of Water Level using Piscal tools. The data taken there are two primary and secondary data. The results showed that the higher the water level, the higher river water discharge. The average value of upstream water discharge is 3.28 m3/s, the middle value is 1.75 m3/s and the downstream value is 6.70 m3/s. The results of the data analysis showed the relationship of water discharge with high water level in the upstream, middle and downstream respectively 0.8929, 0.9005, 0.9663 which means it has a very strong correlation. The average value of the upstream solids is 0.40 tons/ha/day and the sediment charge is 0.01 tons/ha/day with a score of 0.50, in the middle the average solid charge is 0.23 tons/ha/day and the sediment charge is 0.01 tons/ha/day with a score of 0.50, and Downstream the average solid charge value is 1.08 tons/ha/day and the average value of sediment charge is 0.06 tons/ha/day with a score of 0.50, all of which indicate a very low recovery qualification
