R2008-229 AUTHORIZING ADDENDUM TO PROFESSIONAL SERVICES AGREEMENT

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t In December 2003, Council authorized a$30,000 agreement with BGM to provide engineering services for a route study and project plan to extend a water distribution main from the SWTP to the elevated tanks. The water main improvements are recommended by the Water System Master Plan prepared by Strand in 2002. This project consists in the construction of a 30 inch diameter water main from the SWTP to Garfield Avenue on Martin Luther King Jr. Drive; a 16 inch diameter water main from the 30 inch water main to the Division Street Tank; and a 16 inch diameter water main from the 30 inch water main to the Garfield Avenue Tank. Benefits of the project consist in increasing the pumping capacity and efficiency of the high service pumps at the SWTP; reducing significant losses in hydraulic grade line within the water distribution system; and improving the system pressure in the eastern portion of the City. This Agreement covers engineering services for a preliminary study for evaluating alternative routes for the water mains, prepare budget cost estimates and select the best option. In addition, BGM will provide assistance in the preparation of an application for an IEPA loan. The amendment to the Agreement covers increase effort in the preparation of the application for the IEPA Low Interest Loan. In October 2004, Council authorized a$285,000 agreement with BGM to provide engineering services for the preparation of construction plans, specifications, and construction contract documents based on the best option from the Route Study and Project Plan. Over the course of the detailed design of the project the following modifications have been identified for incorporation into the project: • Redundant high service pump discharge This component includes connecting the existing high service discharge header located in the basement of the South Water Treatment Plant and creating a second discharge line to connect to the water distribution network on Marion Avenue thereby increasing the reliability of the system. • Alternate routing of the 16 inch water main at Oakland and Cushing Difficulty in acquiring easements along the original section of the water main alignment resulted in rerouting the water main • Addition of pressure transmitters for pressure zone monitoring This equipment will enable the water plant staffto monitor real time pressure of the system at the interface with the South Pressure Zone. • Fiber Optic Cable between the SWTP and the Garfield Avenue Water Tank A PVC conduit will be installed in a common trench during the water main construction. Eventually a fiber optic cable will be extended to interconnect all the major City facilities including but not limited to the SWTP, the Civic Center, Firehouse No. 1 and the Municipal Service Center. Installing the conduit in the same trench as the water main will provide considerable savings over installing it at a later date. Page � 2