Agmt17 AECOM Technical Services, Inc.

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indicate that the soil cuttings cannot be disposed of at a nearby Class 2 landfill, further testing and analysis may be required to dispose of the container of soil at an appropriate facility. This would be beyond the scope of work for this Project. AECOM assumes that Caltrans will provide an EPA ID number and sign any hazardous waste manifests for off-site soil disposal of hazardous soils in a hazardous waste landfill, if the soils are characterized as hazardous. Off -Site disposal of the investigation wastes and disposal loading oversight are included in the scope of work as outlined in Task 2.6.7. AECOM will use a licensed hazardous waste transporter subcontractor and will oversee the pick-up of all the generated drums associated with the hazardous materials investigation. Field personnel will be OSHA 40 -hour trained for work at hazardous sites (HAZWOPER training). AECOM does not anticipate that potentially hazardous levels of contamination will be detected in the field. If contamination is detected with the PID or is observed in the soil or groundwater, work will be suspended; the boring backfilled and the CITY and Caltrans will be contacted for direction. All borings will be backfilled with neat cement grout as per County requirements at the completion of each drilling and sampling location. Geotechnical laboratory tests will be completed to evaluate the index and strength properties of the recovered samples and will include moisture content/dry density, Atterberg limits, sieve analysis, hydrometer analysis, unconfined compressive strength, swell potential, consolidated undrained triaxial compression, consolidation on compressible clays and "R" value for pavement design. Because of potential hazardous materials presence in the soil samples, all geotechnical testing rates are based on tests conducted at hazardous materials certified laboratory. Task 2.5 Utility Identification and Verification AECOM will verify that all known utility information shown on plans and other documents prepared by AECOM are current and have been coordinated with the utility companies, the City, Caltrans' Right -of -Way Utility Coordinator and Right -of -Way Project Coordinator. Existing utilities will be located using the latest as-builts, visual inspection of surface features, and other available data. Where required, potholing will be conducted to positively identify utilities, including the high risk utilities. AECOM will locate and map existing utilities that potentially conflict with the proposed improvements, and develop proposed relocation alignment. A preliminary utility relocation cost estimate will be prepared. These relocation plans will be submitted to affected utility owners for coordination, input, and to obtain their design for the facilities that they are responsible for required relocation. AECOM will not prepare utility relocation design plans. Utilities that are required to be positively located will be potholed, reference surveyed and plotted. Approximately 70 potholes and 80 electronic probings are planned. AECOM will perform the following activities: • Pothole and verify utility locations, and provide horizontal and vertical surveying. • Coordinate utility impacts and relocations caused by the proposed construction. • Prepare input to the City for preparing utility agreements, including utility relocation claim letters, and Notice to Owners. • Develop utility plans (U- drawings) that indicate utilities to be relocated and utility envelope plans. Page 19 of 73 REV: 07-18-17 PR ATTY/AGR.2017.166/AECOM 101/84 PS&E