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City of Pleasanton P6621.002.000 Storm Damaged Repair Sites March 7, 2024 PROPOSAL FOR ENGINEERING DESIGN SERVICES Latest Revision March 25, 2024 Page 3 If wetlands, streams, or ponds are observed, they will also be reported at the assessment level in the BRTR; detailed jurisdictional status information will be included in separate Wetland Delineation Reports. Any riparian areas or other sensitive habitat areas will also be described and mapped. Based on the Appendix G CEQA Checklist questions regarding biological resources and the findings described above, an analysis of potential impacts and mitigation measures will be prepared to address those issues. As such, a high-level Project Description will be required for each BRTR. The BRTR analysis will be in sufficient detail to provide information suitable for CEQA and will be supported by mapping exhibits to facilitate clarity among the disparate sites. Furthermore, the BRTR will outline additional biological survey needs by site, including recommendations. Phase 005 – Aquatic Resources Evaluation Based on our review of the RFP materials, personal familiarity with many of the identified storm damage repair locations, and that the nature of the repairs are typically associated with streams or drainages, regulatory agencies will require a jurisdictional wetland delineation of each Project site. In some cases, features may be determined to be non-jurisdictional based on their status, use, and maintenance as stormwater control features. In addition, the 2023 Conforming rule may affect the Corps-jurisdictional nature of wetlands and/or waterways. Documentation for each project site will need to be provided to show that a thorough analysis has been completed. WRA biologists will visit the sites to assess and document the presence of wetlands, jurisdictional boundaries of streams and drainages, and other aquatic resources potentially subject to state and/or federal jurisdiction. The fieldwork will be conducted in conformance with the routine methods described in the 1987 Corps of Engineers Wetlands Delineation Manual and 2008 Arid West Regional Supplement Fieldwork will consist of site inspections to each of the project sites determine the presence of hydrologic, soil, and vegetation indicators. For non-wetland aquatic features (i.e., streams), WRA will determine the location of the ordinary high water mark (OHWM). All wetland and non-wetland aquatic feature boundaries will be mapped using handheld GPS equipment with sub-meter accuracy. Should wetlands be present within the analysis area, sample points will be taken; the number of sample points will be determined by the extent and number of wetland areas. Paired sample points (one wetland and one upland) will be taken at the selected locations sufficient to document the extent of the wetlands on the site. Soil inspections will consist of digging shallow (12- to 16-inch-deep) pits at a number of locations at the site to inspect for hydric soil characteristics. Vegetation and hydrology indicators will be observed on the surface of the soil. WRA will prepare a report for the CS Project and for the Bernal Project describing the methods and results of the fieldwork, as well as the associated regulatory context. WRA will provide the GIS ShapeFiles associated with the delineation. Phase 006 – Biological Assessment Based on previous work WRA completed for the City SMP, we anticipate storm repair project sites may have potential to support federally-protected species such as California red-legged frog (CRLF), California tiger salamander (CTS), and Alameda whipsnake (AWS). A Section 7 Biological Assessments may be required to enable Corps Section 404 permitting. The subsequent consultations would be required for Section 7 consultation with the U.S. Fish and Wildlife Survey (USFWS) and National Marine Fisheries Service (NMFS) under the ESA. The process requires DocuSign Envelope ID: 9D598DAC-5F24-41FA-B827-97D013A47ECADocuSign Envelope ID: CEB20404-63F8-4DC5-AE6A-C5FC89DB6F87