Since 1932, Limboto Lake has been experiencing siltation, in 2006 it was measured that about 4.000 hectare of lake was covered. It was predicted by many that in 2031 Lake Limboto would disappear. The ‘Lake Limboto Revitalization’ has been conducted since 2017 by conducting many activities, including sabo plan implementation (also known as sabo technology). This study was originally conducted to review sabo plan in Limboto Lake, however this particular report was conducted to measure potential of erosion and sedimentation using WaTEM/SEDEM Model. Among 12 upstream rivers/Sub-DAS flowing into Limboto Lake, here were rivers with most potential to bring erosion and sedimentation into the lake to the least: Batulayar 193.662 m3, Biyonga Boluta 123.095 m3, Alo1 120.273m3, Alo 115.204 m3, Molamahu 73.058 m3, Marisa 57.075 m3, Pulubala 53.445 m3, Pone 40.254 m3, Molamahu1 39.585 m3, Pilolalenga 32.306 m3, Talumelito 32.247 m3, Pulubala2 31.267 m3, Tuladengi 28.908 m3, Pone1 27.306 m3, Payunga 26.746 m3, Biyonga Boluta1 25.895 m3, Pilolalenga1 21.841 m3, Tabongo 20.151 m3, Pulubala1 17.741 m3, and Tabongo1 11.031 m3. Considering the river dynamics as well as absence of secondary data about rivers, it was crucial to review sabo plan and to measure sedimentation potential per year.
This IM upload includes three documents that are part of the Site 300 EWTF Soil Sample Workplan. All other parts of the Workplan have been assigned IM numbers. Three docs are: 1. Comment Response spreadsheet. 2. EWTF Soil Sample Workplan. 3. Soil Sample Plan Implementation.
