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M A S T E R P L A N F O R L W D P MASTER PLAN RECOMMENDATIONS The Master Plan for Lions Wayside and Delucchi Parks proposes installation of a culvert under the length of Lions Wayside Park, and leaves the stretch within Delucchi Park much the same as it appears at present, though cleaned up and improved, both esthetically and hydrologically. These changes also fulfill community-based goals to make the parks safer and more usable. The proposed design is based on a variety of factors.The parks are downtown sites of many civic activities and special events, and they are located at major intersections of pedestrian and auto traffic. Outside of the parks on both sides (upstream and downstream), the creek is currently in culverts. Creek flows within Lions Wayside Park are minimal and intermittent, and visibility into its channel is limited by depth and location. Creek flows within Delucchi Park are year-round, creating standing water in a location that is difficult to observe.The parks are located in an area of intensive use by citizens of all ages, with events and commercial activities occurring throughout the year, during the daytime and after dark, thus making this an area of concern for public health, safety, and liability. Though located on the City of Pleasanton's land, Kottinger Creek is a tributary to navigable waters, and is subject to the jurisdiction of various public agencies (including the U.S. Army Corps of Engineers, the California Department of Fish and Wildlife, and the Regional Water Quality Control Board). Proposed changes in and around the creek will require reviews, agreements, and approvals from these agencies, and it is likely that the relevant agencies will require compensatory mitigation for impacts to the creek. This may include requirements such as replacing or installing new habitat areas, modifying streambanks, or creating or enhancing wetlands (on another site), and fees to compensate for the process and the proposed changes. AUTHORITY Vegetation communities on-site consist primarily of landscaped lands; however, both the native and non-native trees and shrubs associated with the above-ground portion of Kottinger Creek may be considered riparian vegetation by regulatory agencies. Riparian vegetation falls under the jurisdiction of the California Department of Fish and Wildlife (CDFW) and the Regional Water Quality Control Board (RWQCB). Kottinger Creek is a tributary of Arroyo de la Laguna, part of the Alameda Creek watershed, which flows into San Francisco Bay. It is the only aquatic feature on site and would fall under the jurisdiction of the U.S. Army Corps of Engineers (limited to the ordinary high water mark and/or extent of freshwater marsh), CDFW (top of bank andlor extending to the outer limits of the riparian canopy) and RWQCB (not defined but typically equivalent to CDFW). APPENDIX A A-2