1041 S Dennis St - Soils Report - Laserfiche WebLink

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1,2 GROIINDWATERCONDITIONS Fluctuations of the groundwater level, localized zones of perched water, and soil moisture content should be anticipated during and tbllowing the rainy season. Irrigation of landscaped areas on or adjacent to the site can also cause a fluctuation of soil moisture content and local groundwater levels. 4.3 SOIL EN(;INEERINC PROPERTIES Physical tests were performed on the relatively undisturbed samples to characterize the engineering properties ofthe native soils. Moisture content and dry unit weight determinations were performed on the samples to evaluate the in-situ unit weights of the different materials. Moisture content and dry unit weight results are shown on the boring logs in Appendix A. 5.0 STRONG GROUND MOTION POTENTIAL The project site is located in a seismically active area typical of Southem California and likely to be subjected to a strong ground shaking due to earthquakes on nearby faults. 5,I CBC DESIGN PARAMETERS The project site is located in a seismically active area typical of Southem Califomia and likely to be subjected to a strong ground shaking due to earthquakes on nearby faults. To accommodate effects of ground shaking produced by regional seismic events, seismic design can, at the discretion of the designing Structural Engineer. be performed in accordance with the 2019 edition of the California Building Code (CBC). Table below, 2019 CBC Seismic Parameters, lists (next) seismic design parameters based on the 201 9 CBC methodology, which is based on ASCE/SEI 7- I 6: Dennis- l -0'l Groundwater was encountered within our exploratory boring B-l at an approximate depth of l0 feet bgs. Based on information from the Califomia Geological Survey (Califomia Division of Mines and Geology, 1997). the historic high ground water level in the site vicinity is at a depth of approximately 5 feet beneath the existing ground surface. 3