Why is the proposed restored fish habitat a cold-water habitat?
The main reason why the proposed restoration will incorporate a cold-water fish habitat is due to the flow constraints of the project area. The restored effluent channel receives flow from the East Chicago Sanitary Districts sewage treatment plant along with runoff from a CSO discharge basin and near site drainage. The flow rates experienced in the effluent channel are large enough that a slow warm-water system comprised of sands found similar to the Grand Cal system would wash out during high flow events. A system of pools and riffles are proposed in order to stabilize the channel and create fish habitat. 15.
