R2010-89 AUTHORIZING AN AMENDMENT TO THE AGREEMENT WITH THE SANITARY DISTRICT OF DECATUR

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January 21, 2010—Council Approved Resolution R2010-OS authorizing Intergovernmental Cooperation Agreement Addendum No. 1 for an additional fee of$349,000 for a total amount of$487,000. Addendum No. 1 authorized the Sanitary District of Decatur to include the new force main construction and construction engineering services to the original pump station Intergovernmental Cooperation Agreement. BACKGROUND: Pump Station History The K-mart pump station was built by the developer of the K-Mart Plaza in 1974 to serve the development. The pumps were replaced in 1985 without expanding the capacity of the pump station. Due to recent growth of the area around the K-Mart Plaza and the potential future growth in the area, the existing pump station and force main will not handle the projected flow and the pump station needs to be expanded to serve the developing drainage area. The recommended solution to serve the drainage area for the K-Mart pump station is to replace the existing K-Mart pump station and the force main. The new station and force main will be increased in size to handle the projected flow from the drainage area. Enlarging the pump station capacity requires the existing force main to be replaced with a larger diameter pipe and the discharge location changed to an existing sewer with greater capacity. The existing force main is a 4"diameter pipe installed from the K-mart pump station to a sanitary sewer at the intersection of Airport Road and Baker Woods Lane. The proposed force main is a 6" diameter pipe that would be extended to the intersection of East Cantrell Street and Mount Vernon Place where it will discharge into an existing 12" gravity sewer. Intergovernmental Agreement � The City currently has an Intergovernmental Cooperation Agreement in place with the Sanitary ', District of Decatur to design and construct the K-Mart pump station and force main. Under this ! agreement the City is to reimburse the SDD for the actual costs for design and construction up to $487,000. The cost breakdown for the agreement is as shown below. (a) Design of the New K-Mart Pump Station $ 25,000 (b) Construction ofthe New Pump Station and Force Main $395,000** (c) Construction Engineering ofNew Pump Station and Force Main $ 64,000 (d) Legal Administration $ 3,000 Total Estimated Costs $487,000 **This is the original construction estimate, the City is responsible for actual costs; competitive bids were received by the Sanitary District of Decatur on Apri17, 2010,the low bid price is $423,598. Public Letting Results The K-Mart Pump Station and Force Main was advertized on March 10, 2010 by the Sanitary District of Decatur and bids were received on Apri17, 2010. The results of the letting are as follows: Page � 2