Title
Resolution to Approve a Construction Contract with American Process Group LLC in the amount of $3,919,401.97 for the WTP Lime Residual Removal Contract No. 2 - Dredging and Hauling (RFP 25-18)
Memorandum
This memorandum and resolution requests approval of a construction contract with American Process Group LLC in the amount of $3,919,401.97 for the WTP Lime Residual Removal Contract No. 2 - Dredging and Hauling (RFP 25-18).
The Water Treatment Plant (WTP) generates lime residuals as a byproduct of the lime softening process. The residuals are dewatered on-site using filter presses and hauled away for disposal. During times when the filter presses are not operational, or other related process upsets at the WTP, the lime residuals are pumped directly to the lime residuals lagoon located directly south of M-14 and west of Wines Elementary School. Discharges from the lagoon are regulated through the Michigan Department of Environment, Great Lakes and Energy (EGLE) National Pollutant Discharge Elimination System (NPDES) permit.
Managing this material as well as the lagoon is critical for operating the WTP. The lagoon is nearly full, and removal efforts are needed to provide storage capacity. In 2018, the WTP had prepared bid documents for this project, as well as Contract No. 1, to remove significant material from the lagoon. However, due to budget constraints the project was delayed and reprogrammed in the CIP for fiscal years (FY) 2026 and 2027.
This project will occur in two phases. The first phase (Contract No. 1) approved under resolution R-25-194, will consist of the site modifications needed at the lagoon site and at the WTP site to facilitate the second phase of work (Contract No. 2). Contract No. 2 work will consist of dredging lime residuals from the lagoon, pumping to the WTP to be dewatered and hauled away. The lime residual removal volume included in the base bid is 10,000 dry tons, which is roughly equivalent to 10 years of storage capacity. ...
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