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Geology and Soils There are several active faults near the project area: Calaveras, Concord Green Valley, Green Valley, Greenville, Hayward, Mt. Diablo Thrust Fault, and San Andreas Fault. The Calaveras Fault, which is a designated Alquist-Priolo fault zone, runs along the eastern edge of the Augustin Bernal Community Park, with the staging area and parking lot partially within the fault zone. The Hayward Fault, located approximately eight miles west of the park, is also a designated Alquist-Priolo fault zone. As described in the General Plan, the city is considered to have a moderate seismic risk in terms of fault hazard, seismic ground shaking, and liquefaction. Additionally, the General Plan identifies that the project site is located within an area of substantial landslide susceptibility. • Mitigation Measure GEO-1 — Erosion Control • Mitigation Measure GEO-2 — Treatment of Unanticipated Paleontological Resources Hazards and Hazardous Materials Hazardous materials stored and used in the area surrounding the project would likely be associated with common materials used in commercial and recreational activities, such as paints, cleaning solvents, bonding agents, and small quantity petroleum fuels and lubricants, as well as herbicides and pesticides used for common weed and pest control applications. A search of the State Geotracker and EnviroStor databases determined that no active hazardous materials cleanup sites are located in the proximity of the project site. • Mitigation Measure HAZ-1 — Management of Hazardous Materials During Construction Hydrology and Water Quality There are no streams or natural drainage courses within or adjacent to the project site. There is one primary drainage slightly north of the project site, within the Augustin Bernal Community Park. This drainage flows eastward as a tributary to Arroyo de la Laguna, east of Foothill Road. Arroyo de la Laguna continues south and then west into the city of Fremont, generally along the same alignment as State Route 84, until it enters Alameda Creek and ultimately the San Francisco Bay. Public Services The project would create a local-serving recreational facility to meet the identified needs of existing city residents by constructing an appropriately designed mountain bike trail to replace several existing unofficial user-created trails. The project would not result in any population growth because it would not construct new residences or new commercial land uses that could create new employment opportunities and would not extend infrastructure into unserved areas. Further, the project would not substantially increase use of the Augustin Bernal Community Park or the Pleasanton Ridge Regional Park. Thus, the project would not increase demand for or require construction of new facilities for most public services, and therefore would have no impact associated with fire protection, police protection, schools, or other public facilities. Page 5 of 7