Title
Resolution to Amend Project Scope with TSP Environmental for Work at Argo Dam Headrace
Memorandum
Attached for your consideration is a resolution to amend the project scope of the contract with TSP Environmental to design and construct a by-pass channel in the Argo Dam headrace and install two whitewater features in the Huron River.
City Council approved a contract with TSP Environmental on November 15, 2010 to perform work in the Argo Dam headrace that addressed deficiencies with the headrace embankment as detailed in the Consent Agreement between the City and the Michigan Department of Natural Resources and Environment, improved the Border-to-Border trail connection, and added two whitewater features in the Huron River.
Since the contract was approved in November 2010, the City learned that DTE has performed sediment sampling at numerous locations adjacent to its property on the south side of the Huron River, between the Allen Creek Drain and the Broadway Bridge. Initial test results indicate the need for a remediation plan to be formulated between DTE and the Michigan Department Environmental Quality. DTE has indicated they are pursuing an aggressive timeline for remediation and would like to perform the work in 2012.
Construction plans for the whitewater features of the Argo reconstruction necessitate work be performed in the river bank on the south side of the Huron River that borders the DTE property. As such, at this time it is not prudent to build the whitewater features in an area that will, as part of remediation, likely require the removal and rebuilding of the features.
It is important to note that the remediation work DTE needs to perform will not impact work in the headrace as required by the Consent Agreement as separate permits were submitted for construction in the river and construction in the headrace and embankment. We are pleased to report that the headrace improvements are on schedule.
DTE recognizes that the whitewater featu...
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