Lake rises but needs more rain Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Lake Colac's water level has gone up 13 centimetres in two months. Contact the authorby Jennifer Chiu July 24, 2013 LAKE Colac’s water level has risen 13 centimetres in the past two months. Unlock full access to Colac Herald - Subscribe today! Subscribe Now Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Tags: Lake Colac, Water, Weather