8937-17 Authorize Design-Build Contract for WWTP

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Specifications prepared in accordance with the most - current CSI MasterFormat which establish in detail the quality levels of all materials and systems required for the Project; All stipulations pertaining to the furnishing and installation of the Work as required for completion of the Project; and, QA/QC procedures for processes /equipment, materials and start- up /commissioning. 3. Digester Cleaning and Inspection Stage The Design Builder (DB) perform a turnkey project, which includes cleaning, removal and disposal of all fluid contents and solids including sludge, scum, grit, sand, and other materials deposited in the digester; structural inspection of each digester and returning the digesters back into service. Such removed materials shall be disposed of off -site by the DB at the DB's expense. The existing digester mixers shall be removed during the cleaning and inspection process, delivered to the Owner for maintenance, and then re- installed and placed into service by the Contractor. The scope of the Primary Digester Cleaning and Inspection includes: Remove materials from the digester and restore the digester to original capacity. Sludge and solids are to be removed from both Primary Digesters. Contractor shall perform a turnkey project, which includes mobilization cleaning, cleaning, removal and disposal of all fluid contents and solids including sludge, scum, grit, sand, and other materials deposited in the digester. Such removed materials shall be disposed of off site by the Contractor at the Contractor's expense. The materials which are not suitable for land application shall be disposed in an approved landfill. Costs related to disposal, inclusive of removal, transportation and land application, landfilling, or other methods, shall be included in the price bid. The Contractor shall supply to the City weight tickets for all sludge hauled from the site as the basis of payment. The scales used by the contractor to provide the weigh tickets shall be subject to acceptance by the City. The Contractor shall provide all labor, materials, tools, chemicals, equipment or process machinery as well as all trucks and suitable containers, supplies, personnel and all other requirements necessary for laboratory testing, processing, removing, hauling and disposal of liquid and solids removed from the digesters. There are no representations as to the condition, hardness, or type of material to be removed. It is believed that the digesters at Lakewood WWTP have not been cleaned in the past 20 years. After each digester is cleaned, the FOR shall conduct an internal and external structural inspection and analysis of the digester tank. The inspection shall determine the tanks' condition, identify and quantify needed repairs and analyze the tanks' suitability for 8 1 P a g e