Physical description
State Rivers and Water Supply Commission of Victoria. Coliban System. Construction of Lake Eppalock. Chart titled 'Coliban System Critical Storage Curves'. Includes table headed ' Estimated requirements for various degrees of restricted consumption' related to the demand on the Coliban River. Figures on storages of Upper Coliban, Lauriston, Malmsbury, Barkers Creek, and Spring Gully. There are penciled notations added. The information appears to be for the years 1957/58/59.