Assessment of Water Supply for the Eden Project:

From 1921 to 1959, flow measurements of the Big Sandy River indicated an average flow of 62,700 AF/yr. The average flow of Little Sandy Creek (measured above the Eden Reservoir Supply Canal) was 15,900 AF/yr.

From 1921 to 1959, flow measurements of the Big Sandy River indicated an average flow of 62,700 AF/yr. The average flow of Little Sandy Creek (measured above the Eden Reservoir Supply Canal) was 15,900 AF/yr.