Lake Oroville reached the lowest levels since September 1977, measuring 643.5 feet above sea level at 10 a.m. Tuesday. For comparison, when Lake Oroville is full, the surface water level is 900 feet above sea level.

Increasing issues are arising from the low levels being seen at Lake Oroville. Water operations manager for the Department of Water Resources State Water Project Molly White said last week in an email that due to the falling lake levels, the Edward Hyatt Power Plant may be forced to close down for the first time in its history due to low lake elevation.