Trenton City Administrator Dean Creech speaks about the city’s agreement with DTE for the maintenance of the storm water management system for the property at 4780 W. Jefferson, the site of the former power plant, which is being used as a battery storage facility.
By SUE SUCHYTA
Sunday Times Newspapers
TRENTON – The City Council approved an agreement Dec. 2 with DTE Energy requiring it to maintain the storm water management system at the former power plant site at 4780 Jefferson Ave.
The agreement is required as part of DTE’s site plan approval process to use the property for battery storage.
DTE agrees to monitor, operate, maintain and repair the storm water system in perpetuity for the system to function properly. If it defaults, the city reserves the right to enter the site to undertake remedial actions needed.
Documents included with the agreement state that the stormwater control system subject to the long-term maintenance plan includes the underdrain pipes, cleanouts, manholes and interconnecting piping on the collection side of the system, the flow restrictor, and the manholes and interconnecting piping to the outlet structure that discharges water into the existing drainage system along West Jefferson Avenue.
The agreement also states that the stormwater management system includes two upstream stormwater collection manhole inlets that collect site runoff and process stormwater runoff through a Contech Cascade Separator inlet that discharges to the stormwater detention basin.
The detention basin is designed to hold and slowly release “100- year flood volume” through a Wayne County standard outlet structure.
The Cascade Separator will remove solids and act as a mechanical separator to remove total suspended solids, trash and other debris prior to entering the detention system.
The detention basin and outlet structure collect storm runoff.
The Wayne County Flow Restrictor is designed and sized to regulate the allowable discharge from the system to the existing drainage along West Jefferson Avenue in accordance with the limiting conditions specified by Wayne County and the city.
City Administrator Dean Creech said a lengthy document package is included with the Dec. 2 council agenda packet, adding that it is a formality to get the storm water management agreement in place.