RES 10340 - Laserfiche WebLink

design-level geotechnical investigation. (Mitigation Measure F-3-a of the FEIR) c. Site soils are to be tested and evaluated for corrosivity. If corrosive soil conditions are present, the report shall identify the appropriate measures to mitigate these conditions that shall be incorporated into the design of project improvements that may come into contact with site soils. Wherever corrosive soils are found in sufficient concentrations, recommendations shall be made to protect iron, steel, metal, and concrete from long-term deterioration caused by contact with corrosive onsite soils. (Mitigation Measure F-3-a of the FEIR) d. To ensure that buildings and other subdivision improvements are not damaged by differential settlement at the project site, the report shall include specific recommendations for mitigating potential settlement associated with native soil/fill boundaries and areas of different fill thickness, including recommendations for dealing with differential cut and fill that would affect building pads, streets, and utilities. (Mitigation Measure F-4-a of the FEIR) e. The design-level geotechnical report shall include a review of proposed storm water drainage improvements including outfalls and water quality features. A percolation test of each detention basin shall be provided to demonstrate drain-down in three days. The report shall be subject to the review and approval by the City Engineer and will require a review and approval by a geotechnical peer review consultant selected by the City. The recommendations specified in the report and by the peer review geotechnical consultant shall be incorporated into the development's grading and improvement plans for review and approval by the City Engineer before the City approves the first final subdivision map. 68. All investigative trenches and test pits not fully removed by excavation during the course of normal site grading and site preparation shall be specifically excavated and brought to grade with properly compacted fill to the satisfaction of the City Engineer. (Mitigation Measure F-4-b of the FEIR) 69. The project developer shall arrange and pay for a geotechnical engineer to inspect and approve all subdivision improvements including, but not limited to, retaining walls, drainage improvements, NPDES measures, geotechnical mitigations, etc., during construction to ensure that the recommendations have been properly incorporated into the development. The geotechnical engineer shall be on-site to monitor all grading and excavation operations. The results of the inspections and the as-built conditions of the project shall be inspected and certified in writing by the geotechnical engineer for conformance to the approved plans and geotechnical report and shall be submitted to the City Engineer for review and approval prior to the issuance of the first building permit for a home. (Mitigation Measure F-2-b of the FEIR) Exhibit 8 Page 28 of 39 Ordinance No. 1961 PUD-33, Oak Grove