Agmt17 AECOM Technical Services, Inc.

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transporter subcontractor and will oversee the pick-up of all the generated drums associated with the hazardous materials investigation. AECOM will develop a draft Project Hazardous Materials Report for the Field Investigation. The draft report will be internally peer reviewed by senior AECOM site investigation practitioners and their comments addressed. The draft report of our investigation findings for will be submitted for one round of review and approval by the City and Caltrans. The report will include the following sections: • Executive Summary • Introduction • Sampling • Analytical Results • Tabulated Data and Comparison to Regulatory and ADL variance criteria • Upper Confidence Limit statistical evaluation of the Site's ADL • Figures showing the Site, sampling points, areas included in the UCL calculations, grading recommendations • Conclusions and recommendations for soil and dewatered groundwater management AECOM will address the City's and Caltrans comments and issue the final report. The final report will be stamped by a California Professional Geologist or Professional Engineer. 8. Right of Way Hazardous Test Report AECOM will implement a soil and limited groundwater investigation that is focused on the contaminant issues identified in the ISA for each property or that may impact the property. These likely contaminants are as follows: • Metals including Aerially Deposited Lead (ADL) from the former combustion of leaded gasoline. • Petroleum hydrocarbons from leaking Underground Storage Tanks (USTs) as gasoline and diesel. Chlorinated hydrocarbons including solvents typically used as degreasers and dry cleaning chemicals. • Polychlorinated Biphenyls (PCBs). The purpose of the investigation will be to identify site contaminant concentrations that will require management and/or mitigation measures, as follows: • Investigate properties that will be completely or partially included into the Right - of -Way that may affect taking the parcels into the Caltrans Right -of -Way. The proposed affected parcels are as indicated in the table in Section 6.0 List of Potentially Affected Properties. Page 25 of 73 REV: 07-18-17 PR ATTY/AGR.2017.166/AECOM 101/84 PS&E