The Committee will reach conclusions of whether the receiving water downstream from each individual RTB is achieving the Phase II criteria for success, if not, to what extent the RTB discharge is contributing to the water quality problem. Finally, the CSO Workgroup, composed of MDEQ staff and representatives of the RTB communities, will compile the information on success of the individual RTBs in meeting the Phase II and Phase III criteria for success and propose what level of treatment should be considered adequate. It is very important to note that MDEQ has concluded that the CSO treatment facilities are currently meeting the Phase II criteria. Inkster CSO Retention Treatment Basin, Dearborn Heights CSO Retention Treatment Basin, Redford Township CSO Retention Treatment Basin. The elimination of raw sewage at the Rouge CSO facilities includes screening, skimming and settling of the flow.
Screens contribute to the removal of larger debris from the flow.
Baffle walls installed in each facility help facilitate removal of floating materials, capturing these materials I the basin for removal during dewatering. The facilities were designed to allow for sedimentation to occur for the removal of heavy solids. The ability of the facilities to achieve removal of solids is typically related to the surface overflow rate and weir loading rate. Elimination of raw sewage is determined by the elimination of sanitary trash from the facility effluent as measured by visual observation of what is captured in 6 mm mesh nets in the facility outfalls. The operation of the CSO control facilities is critical to their overall success.