14 ATTACHMENT 6 - Appendix A - E

City of Pleasanton–Spotorno Ranch Reduced Development Project Initial Study/Consistency Checklist Environmental Checklist FirstCarbon Solutions 81 https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480021/Consistency Checklist/21480021 Spotorno Ranch Consistency Checklist ScreenCheck.docx c) Federally Protected Wetlands Would the project: Have a substantial adverse effect on State or federally protected wetlands (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? The 1998 HVSP FEIR determined that development has the potential to impact jurisdictional wetlands, and included MM J6 and J10 to reduce potential impacts to less than signifciant. Subsequent to the certification of the 1998 HVSP FEIR, two wetland delineations have been conducted on the project site, one by Olberding in 2008 which was verified by the United States Army Corps of Engineers (USACE), and one by LOA in January and April 2015, which was verified by the USACE on December 1, 2017 (Appendix C). Four seasonal wetlands occur on the project site, totaling approximately 1.30 acres. Three of the four wetlands (totaling 0.85 acres) occur on slopes within the open space areas of the site (Parcel C), and would not be affected by construction. As stated in Checklist Question 4.4(b), four intermittent drainages also occur within the preserved open space area of the project site and would not be impacted by project construction. All wetlands on the project site, whether isolated or not, are considered jurisdictional by the Regional Water Quality Control Board (RWQCB). Proposed slope stabilization activities that would occur within the open space area would impact one of the four seasonal wetlands (0.02 acre). Trenching that would be required for a stormwater conveyance pipeline and the construction of an emergency vehicle access road would result in temporary and permanent impacts to one additional wetland (0.02 acre temporary and 0.01 acre of permanent impacts). Total impacts would amount to 0.03 acre of permanent impacts and 0.02 acre of temporary impacts. In accordance with the 1998 HVSP FEIR, mitigation for these wetlands impacts would be satisfied through implementation of MM J6 and MM J10, which require the project applicant to obtain fill permits and provide additional mitigation of wetland impacts as may be required by regulatory agencies (USACE, CDFW, and RWQCB) upon review of applications for fill permits. With the implementation of these measures, impacts to the on-site protected wetlands would be reduced to less than significant levels. Therefore, the proposed project would not result in any new or more severe impacts to State or federally protected wetlands beyond what was previously analyzed in the 1998 HVSP FEIR. d) Fish or Wildlife Movement Would the project: Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of wildlife nursery sites? The 1998 HVSP FEIR did not directly evaluate whether the development of the HVSP would interfere with the movement of wildlife. The project site contains agricultural/rangeland, and the surrounding area consists of residential, light commercial, and agricultural uses. As noted in the discussion under Checklist Question 4.4(a), special-status wildlife species and bird species protected under the Fish