ITEM 5 EXHIBITS A-H - Laserfiche WebLink

BLACK AVENUE RESIDENTIAL DEVELOPMENT 648-26-1 Page 3 The faults considered capable of generating significant earthquakes are generally associated with the well-defined areas of crustal movement, which trend northwesterly. The table below presents the State-considered active faults within 25 kilometers of the site. Table 1: Approximate Fault Distances Fault Name Distance (miles) (kilometers) Calaveras 2.2 3.5 Hayward (Total Length)8.3 13.4 Greenville 9.9 16.0 Hayward (Southeast Extension) 14.1 22.7 A regional fault map is presented as Figure 3, illustrating the relative distances of the site to significant fault zones. SECTION 3: SITE CONDITIONS 3.1 SITE BACKGROUND We reviewed historical aerial imagery provided online by Historical Aerials (http://www.historicaerials.com). From 1949 to 1968, the site was a vacant plot of land that appears to be used for agriculture. Between 1968 to 1979, the site was developed with the current building surrounded by parking and has remained relatively unchanged. 3.2 SURFACE DESCRIPTION The approximately 2½-acre site is located at 4400 Black Avenue and is currently designated as APN 946-3380-6. The site is bounded by Black Avenue to the north, Amador Valley High School to the south, The Quarry Lane School-West Campus to the west, and various commercial buildings and parking lots to the east. Based on Google Earth, the site is relatively flat with site grades ranging from approximately Elevation 344 feet from the northwest corner of the site to Elevation 346 feet along the southern portion of the site (datum unknown). Based on visual observations, the existing pavements are in fair condition within the parking lot area and in fair to poor condition with block and alligator cracking observed within drive aisles. 3.3 SUBSURFACE CONDITIONS Below the existing surface, our hand augers encountered undocumented fills of silty sands with gravel and sandy fat clay to a depth of 2 to 2½ feet underlain by native lean clays to the maximum depth explored of 4 feet. Based on interpretation of the Cone Penetration Test (CPT) soundings, CPT-1 and CPT-2 encountered clays to a depth of 22 to 23 feet underlain by gravelly sand and sands to the practical refusal depth of between 39½ to 44 feet. CPT-3 illustrating the relative distances of the site to illustrating the relative distances of the site to We reviewed historical aerial imagery provided online by Historical Aerials We reviewed historical aerial imagery provided online by Historical Aerials ). From 1949 to 1968, the site was a vacant plot of land that ). From 1949 to 1968, the site was a vacant plot of land that ppears to be used for agriculture. Between 1968 to 1979, ppears to be used for agriculture. Between 1968 to 1979, current building surrounded by parking and has remained relatively unchanged. current building surrounded by parking and has remained relatively unchanged. SURFACE DESCRIPTIONSURFACE DESCRIPTION The approximately 2½The approximately 2½--acre site is located at 4400 acre site is located at 4400 . The site is bounded by Black Ave. The site is bounded by Black Ave School to the south, The Quarry Lane SchoolSchool to the south, The Quarry Lane School commercial buildings and parking lots to the east. commercial buildings and parking lots to the east. site grades ranging from site grades ranging from