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<br />60. (MM 9.A.8) The "stock ponds" must be removed or graded to a <br />natural surface so that rainfall is not allowed to pond. <br /> <br />61. (MM 9.A.9) Due to the clayey nature of in-situ soils, grading <br />should be performed during the dry months of the year to <br />minimize potential compaction and erosion problems. <br /> <br />62. (MM 9.A.l0) Areas possessing soil creep characteristics should <br />be over-excavated and the soil replaced and compacted with <br />engineered fill. <br /> <br />63. (M 9.A.11) Filling of hillside lots along the northern property <br />line should be kept to a minimum and not extend within 50 feet <br />of the northern site boundary. <br /> <br />64. (MM 9.B.1) A final storm drain plan shall be provided to the <br />City Engineer for his review and approval prior to the tentative <br />map approval. <br /> <br />65. (MM 9.B.2) An on- and off-site hydrology and hydraulics study <br />should be performed by a qualified civil engineer. Use standard <br />engineering techniques to resolve deficiency of existing storm <br />drain systems, if any. <br /> <br />66. (MM 9.C.l) The developer's engineering staff and consultants <br />should prepare recommendations and plans for preventing erosion <br />and scour of natural creeks and existing drainageways. The <br />method of creek protection should be chosen in consultation with <br />the Alameda Flood Control District. Plans and recommendations <br />should be provided for construction of concrete "v" ditches on <br />all cut and fill slopes within the subdivision. The City should <br />determine who should own and maintain the project site's creeks <br />and drainage ways. They should not be owned or maintained by <br />any individual homeowner. <br /> <br />67. (MM 9. C. 2) The approved erosion control plans and <br />recommendations prepared by the developer's staff and <br />consultants should be installed as shown on the approved <br />drawings. The developer's engineers should provide continuous <br />inspection during construction in order to ensure that the <br />construction work is performed properly. <br /> <br />68. (MM 9.C.3) Planting and hydro seeding should be done to prevent <br />surface (sheet) erosion. Effective erosion control provision <br />should be installed as detailed by the Association of Bay Area <br />Governments. In addition, good construction practices should be <br />followed during grading operations to control wind and water <br />erosion of excavated and exposed surfaces. <br /> <br />69. (MM 9.D.1) All fill placed for subdivision roadways and <br />infrastructure should be placed in such a manner so as to <br />minimize differential settlement. The developer's geotechnical <br />and civil engineers should provide detailed recommendations and <br />plans for acceptable cut and fill slope gradients, stripping, <br />