The National Assembly Legislative Research Service questioned whether dams designated by the government can reliably provide 650,000 tons of industrial water (water used in manufacturing) daily to the Honam semiconductor complex. Its September 18 report, titled "Fact Check: Review of the Feasibility of Water Supply Plans for the Honam Semiconductor Cluster," examined inflows and outflows at the Jangheung, Boseonggang, Naju and Juam dams from 2021 to 2025. It found major rainfall-related volatility: Boseonggang’s 2024 inflow was 84% above the five-year average, while Jangheung’s 2022 inflow was 72.2% below average during drought. The proposed allocation consists of 300,000 tons a day from Dongbok Dam, 100,000 tons each from Jangheung, Boseonggang and Naju, and 50,000 tons from Juam. The report also highlighted the drought vulnerability of the Yeongsan and Seomjin river watersheds (land areas draining into rivers), which cover 3,455 square kilometers and 4,911 square kilometers, respectively, compared with 26,219 square kilometers for the Han River and 23,384 square kilometers for the Nakdong River. It criticized the Ministry of Climate for offering only broad target volumes for dam water and recycled wastewater (treated water reused for industrial needs), despite earlier forecasts of water shortages in Honam and concerns raised by academia and the media. The report said the government should thoroughly review and disclose the sustainability of the supply plans before proceeding with the large-scale national project.