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Task 2.3 Noise Analysis (Update) The draft noise analysis was completed in November 2007 however was not submitted to Caltrans for review because the project was put on hold. The current noise report will require minor revision due to changes in the requirements for noise reports and updated traffic. However, if a new traffic report is required then the noise analysis will require wholesale revision using the new traffic numbers for new modeling. In addition, the noise analysis will be revised to reflect the latest requirements for the noise impacts assessment posted on the SER. LSA will revise the Noise Impact Analysis that assesses the project's potential effects on existing and future noise conditions based on the new alignment. LSA will review applicable noise and land use compatibility criteria for the project area. The noise study revisions include the following tasks: 1) the Noise Analysis (noise modeling) will be updated to reflect updated traffic data; 2) the report will need to follow the current Caltrans Protocol and the new report format provided on the SER website; and 3) the reasonable allowance per benefited residence has been reduced from $36,000 to $31,000 and the report will reflect this change. Update Noise Study to Reflect Revised Traffic Data (Optional task) If Caltrans requires new traffic information under either optional Approach No. 1 or No. 2 described above under the Traffic Study, then this will require additional revisions to the noise modeling that are not included in the above scope of services for the update of the noise analysis. New Task 2.3.1: Noise Abatement Decision Report (New study) A Noise Abatement Decision Report (NADR) will be required to be consistent with the most recent Caltrans Traffic Noise Analysis Protocol, which was not included in the original scope of work. LSA will work with DMJM/AECOM to obtain the engineer's cost estimate for the evaluated abatement, the engineer's evaluation of nonacoustical feasibility issues, and necessary technical reports to assess secondary effects of abatement. The project engineer (DMJM/AECOM) will need to sign the NADR. If feasible sound barriers are identified in the Noise Study Report (NSR), LSA will prepare a NADR. The report will summarize the preliminary reasonableness determination from the noise study report, present the engineer's cost estimate for the evaluated abatement, evaluation of non- acoustical factors related to feasibility, preliminary noise abatement decision, and secondary effects of abatement (impacts on cultural resources, scenic views, hazardous materials, and biology). LSA will prepare the NADR consistent with the Caltrans report guidelines with the best information available. Task 2.4 Cultural Studies (Updates) The draft Archeological Survey Report (ASR) and Historical Properties Survey Report (HPSR) were completed in September and October 2007, respectively. However, these reports were not submitted to Caltrans because the project was put on hold. The ASR and HPSR reports will require significant revisions due to the new ASR form requirements, and updates to the HPSR. The reports will require updated records search and literature search, minor updates to the APE map and additional Native American consultation. Furthermore, the Historical Resources Evaluation Report (HRER) was determined to be required by Caltrans in the PES form. The scope of work for the HRER is described below: 25B-7