PC-92-16 - Laserfiche WebLink

f. Landscaping and walks should be installed such that the lot drainage system designed by the civil engineer is not disrupted. Water should not be allowed to pond on the lot. g. conditions, covenants and restrictions for the subdivision should include the lot drainage requirements. Specific reference to drainage requirements should be included in the deed for each lot in order to prevent homeowners from altering drainage on the lot. 73. (MM 9.E.3) The recommendations and plans provided by the lot owner's geotechnical and civil engineers should be carried out completely and correctly by the owner's contractor. The geotechnical and civil engineers should provide continuous inspection during construction in order to ensure that their recommendations and plans are being properly implemented. 74. (MM 9.F.l) Prior to tentative map approval, the potential for seismically induced landslides and liquefaction must be investigated in detail. Detailed investigations are required for evaluation and preparation of slope stabilization plans. This investigation must include an evaluation of the potential for activation of landslides during an earthquake. If a high potential for activation exists then the slope stabilization plans must include measures for reducing the likelihood of earthquake caused landslides. In addition, the liquefaction potential of the soil must be evaluated. If a high liquefaction potential exists then recommendations for minimizing future damage must be incorporated into the subdivision design. 75. (MM 9.F.2) All buildings should be designed and constructed in accordance with the city of Pleasanton building codes, particularly those sections of the codes regarding earthquake resistant- design. The geotechnical investigation report for each lot should include earthquake design recommendations including recommendations for site period or soil profile coefficient as well as a discussion of seismically induced landslides. 76. (MM 9.G.1) The surface drainage system for the development as a whole should be evaluated by the geotechnical engineer and engineering geologist in order to determine the effects of the surface drainage system on springs and the groundwater regime at the site. 77. (MM 9.G.2) The recommendations of the geotechnical engineer and engineering geologist should be implemented by the developer's contractor during subdivision grading. All cut and fill slopes should be inspected by the engineering geologist during grading in order to locate and evaluate any new springs which may be found during grading operations. The location of all subsurface drains should be shown on as-built drawings. II . I