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New Task 2.4.1 HRER (Optional New Study) It is unlikely that a Historic Resources Evaluation Report (HRER) is necessary for the project because there does not appear to be the need to evaluate properties adjacent to the APE. However, it is included here in the event that Caltrans requires one. The HRER will document identification, recordation, and evaluation efforts for the built environment and historical archaeological resources. The preparers) of the HRER will meet the Architectural Historian Qualifications Standards in Attachment 1 of the 2004 Programmatic Agreement (PA). The HRER will follow the format in Exhibit 6.2 of Caltrans Environmental Handbook Volume 2. The HRER will contain documentation of the research and field methods, a historical overview, the description and significance of identified historic archaeological and built environment cultural resources (if applicable), and findings and conclusions. The HRER will also contain a bibliography, preparers' qualifications, maps, Department of Parks and Recreation (DPR) 523 forms for properties not exempted under Attachment 4 of the PA, and other appropriate documents such as maps, figures, previously prepared resource records, and historical archaeological site records. Determinations of Eligibility will be made for properties within the area of potential effect (APE). It is anticipated that the project will not have any effects on historical resources and that a Finding of Effect will not be required. Task 2.5 Natural Environment Study Minimal Impacts (NESMI) (update) The draft NESMI was completed in November 2007; however, it was not submitted to Caltrans for review because the project was placed on hold. The current NESMI will require update to the report, an additional follow-up site visit, including a daytime visit to inspect the bridge for the bat presence, and a new CNDDB and CNPS literature search to update the occurrence potential for special status species. Task 2.7 Initial Site Assessment (ISA) (update) The draft ISA was completed in September 2007 and was submitted to Caltrans for the first round of review. The comments to the report were received however they were not incorporated to the report, because the project went on hold. The ISA will be revised to provide answers to Caltrans comments, incorporate new records search results and Caltrans comments to provide Asbestos Containing Materials (ACM) survey results findings. These new records search results and ACM survey finding will be reported in the updated ISA. In addition, based on LSA's experience that these studies are typically required by Caltrans, we recommend that the ADL surveys for aerially deposited lead and lead-based paint be conducted by Kleinfelder under their existing contract with AECOM. The ISA report will be revised per findings of these survey results. Task 4.1 Jurisdictional Delineation (update) The jurisdictional delineation report will require revisions regarding changes to U.S Army Corps of Engineers (Corps) guidelines as a result of recent Rapanos Supreme Court decision. The report will be updated to reflect these Corps changes. The Santa Ana River is also subject to review by California Department of Fish and Game (CDFG) under Section 1602 of the Fish and Game Code. 25B-8