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261 <br /> <br /> Mr. Roush replied that indemnification agreements are <br />included in the conditions of approval, which are then <br />incorporated in the CC&Rs. The Council has also accepted certain <br />public improvements in hillside areas and treated them in the same <br />manner as other subdivisions within the City. <br /> <br /> Mr. Mercer requested Mr. Swift to explain the geotechnical <br />studies done on the project and the staff's position on the <br />matter. <br /> <br /> Ms. Mohr requested that Mr. Swift include an explanation on <br />how a sandy gravel layer and hydrostatic pressure caused by rain <br />water can be corrected to prevent another slope failure. <br /> <br /> Mr. Swift stated that with respect to the geologic studies, <br />he indicated that a study was done with the first plan and an <br />updated study was done with the second plan. These were reviewed <br />separately by two City-hired reviewing geologists. These <br />geologists concluded that if the recommendations of the report <br />were followed, the site would be acceptable for this type of <br />development. <br /> <br /> Mr. Toman inquired if the entire hillside was addressed with <br />respect to what happens to the old slope's stability when tons of <br />earth is removed at the bottom of the hill for the excavation for <br />the foundation and what the overall slope stability would be after <br />that is done. <br /> <br /> Mr. Swift replied that the geological reports indicate that <br />the design of putting the house back and building the retaining <br />wall replaces the tons of dirt that are removed. The geologists <br />stated that if the house is built correctly, the hill will be more <br />stable than before the dirt was removed. The study also <br />recommends that drain systems be included to take the water off <br />the hill. <br /> <br /> Mr. Mercer inquired if water still continued to drain off the <br />hill. <br /> <br /> Mr. Toman said that it occasionally did during the heavy <br />rainy season. He added that the gravel level was way below the <br />twelve feet excavation done for his house's foundation and that it <br />would be difficult to tell if there were any other such strata in <br />the hill. <br /> <br /> Mr. Tarver stated that if the City specifies in the <br />conditions that its independent consultants agree with the <br />geotechnical studies that the hillside is safe for development, <br />then the City should be responsible for any slope bank failure <br />that may occur in the future. <br /> <br /> - 7 - <br /> 6-5-90 <br /> <br /> <br />