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1 <br /> City of Everett 01 1100 - 5 <br /> ' 2022 Biosolids Removal and Disposal UT 3752-30 <br /> D. Centrate Return and Effects on Wastewater Treatment <br /> 1. Contractor shall return Biosolids centrate to the wastewater treatment <br /> process stream using the 10-inch centrate return line. This line runs from <br /> the Biosolids Pad to the north end of Aeration Cell #1. <br /> 2. Contractor is responsible for providing equipment to connect to connect <br /> with the 10-inch centrate return line. <br /> 3. Contractor shall monitor and minimize any scum mat, foaming or other <br /> effects from dewatering chemical side-streams. Scum mats that form at the <br /> Recirculation Pump Station or the Aeration Cells in excess of 100 square <br /> feet in surface area shall be the responsibility of Contractor to collect and <br /> dispose of in dumpster(s) provided by the City for this purpose. Any costs <br /> of controlling, adjusting, or remediating effects of dewatering side-streams <br /> ' shall be incidental to the costs of dredging and dewatering. <br /> 1.8 BIOSOLIDS WEIGHING AND TRANSPORTATION <br /> A. Transportation Equipment <br /> 1. The Contractor shall provide all labor, equipment, and appurtenances <br /> ' necessary to perform and support the loading, transportation, and disposal <br /> of the biosolids from the dewatering operations staging area to an <br /> approved solid waste facility. <br /> a. Any loading, transportation, and temporary staging work on the <br /> Biosolids Pad shall be incidental to the unit price bid for Dry Tons <br /> Biosolids Removed, Dewatering, and Placed on the Biosolids Pad. <br /> b. Any loading, transportation, and disposal work to an approved solids <br /> waste facility shall be incidental to the unit price bid for Dry Tons <br /> Biosolids Transported & Disposed of at Approved Site. <br /> 2. Trucks shall be thoroughly cleaned after dumping the material with minimal <br /> solids left in the truck from the previous load. It shall be the Contractor's <br /> responsibility to clean up any biosolids on a daily basis that are deposited <br /> ' on the Pad between the dewatering staging area, the storage area, and the <br /> scale. <br /> ' B. Safety & Spills <br /> 1. Drivers must have current licenses for the vehicles they operate and <br /> ' suitable for the material hauled. <br /> 2. Trailers shall be covered and covers maintained in good repair. <br /> 3. Truck and trailer tires must be washed at the City provided wash station <br /> ' prior to leaving the Biosolids Pad to minimize tracking or dropping biosolids <br /> onto the roadways. <br /> 4. Vehicles must contain a copy of the Hauling Handbook in Appendix B to <br /> ' support drivers responce to emergencies. <br /> 01 1100 - 5 SUMMARY OF WORK <br />