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800K DO PAGEDi b) Additional Architectural Services: Additional architectural services were needed to investigate a foundation slab for a water plant structure. The foundation for an existing structure had undermined during the contractor's placement of electrical conduit. The architect was instructed to investigate the cause of the undermining and determine if improvements were warranted to prevent potential damage to the structure. The additional architectural fee incurred by the County is to be deducted from monies due the contractor. (See Exhibit A, Item No. 22) c) Additional County Services: The County has incurred additional expenses to administer the engineering and construction contracts. The additional fee incurred by the County is to be deducted from monies due the contractor. (See Exhibit B, page 1) d) Additional Water Treatment Plant Improvements Services: During construction, several needed improvements were identified which were not included in the original scope of construction. These needed improvements included as a minimum, computer upgrades for the South County Water Treatment Plant, additional electrical work, air valves and additional instrumentation. The construction costs for the additional improvements amounted to $33,512.25. This amount, in total with Change Order Nos. 1 and 2 equates to a total contract overage of less than one percent. (See Exhibit A, pages A-2 to A-5). Description of Previous and Proposed Change Orders: Change Order No. 1 was approved by the Board September 16, 1997 and incorporated a credit of $1,859.00 for omission of select backfill and substitution of alternative treatment equipment. Change Order No. 2 was approved by the Board on April 7, 1998 and included costs of $26,280.00 for the installation of a seamless cementious flooring coating in selected water treatment plant rooms. Proposed Change Order No. 3 (Final) Change Order No. 3 provides for final contract closure for work performed at the water treatment plant. Change Order No.3 provides reconciliation to the County for the additional expenses incurred. The additional expenses incurred by the Department, as a direct result of the extension of the contract time will be deducted from monies due the contractor for work performed. Monetary damages have been imposed on the contractor pursuant to Change Order No. 3 for failure to achieve substantial completion of the project as stipulated in the contract. The water treatment plant is complete and has been in operation since June 25, 1998. Board action is requested for approval of payment to the engineering and architectural firms as well as authorize final release of payment to the Contractor. Final release of payment to the contractor will be contingent upon satisfactory completion of remaining punch list items. The details for proposed Change Order No. 3 are listed on Exhibit "A". The breakdown for final payment distribution to the Contractor (Wharton -Smith Inc.) is as follows: The original contract amount was $6,612,000.00; the final contract total after execution of all change orders is $6,669,933.25, which equates to a project overage of less than one -percent. APRIL 27, 1999 34