U.S. Rep. Doug Collins, R-Gainesville, has created a congressional caucus to focus on local and national water issues, including lake levels, drinking water supplies and U.S. Army Corps of Engineers regulations. One of the key issues for the Corps of Engineers Reform Caucus will be lake levels and keeping them as high as possible, Collins’ office said. The 9th District congressman will start to recruit members to the caucus when Congress comes back into session next week.