How Priorities are
Early on in CSO Task Force meetings held in 1998, it was noted that some of the 40 existing City of Wilmington CSOs may not pose any environmental or health problems. Though it would be ideal to eliminate all 40, this would also be the most expensive solution. The Task Force decided that when prioritizing they should consider the:
In addition, the City asked their consultant, Tetra Tech, to quantify overflows at each CSO outfall.
Though jurisdictional responsibility for maintaining CSO 27, 28 and 29 was initially unclear, the City committed to maintenance of all three. The Task Force adopted a modified EPA ranking system to analyze the following characteristics for each of the Citys 40 confirmed CSO: