The aim of this project is to reduce and then in the long term eliminate the threats to people’s health and environment, created by the waste water of Karakoçan, a subprovince of Elazığ, flowing into Ohu stream. For this purpose, old sewer lines flowing into the Ohu stream at 12 different locations have been collected and moved out 3 km by laying this new network and collectors under this project and discharged to Ohu stream at a point that is close to the waste water treatment plant which is planned to be constructed in the near future.