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Phelan Development Holly Master Plan - Buildings H & 1 <br /> 15188.000.006 Geotechnical Exploration <br /> to 12 feet below existing grade; maximum extents of fill may be greater than those encountered <br /> in our explorations. Underlying the native clays, we encountered a medium dense to dense sand <br /> deposit with variable silt content to approximately 65 feet below existing grade. A layer of medium <br /> stiff silt with varying sand and clay content was encountered in CPT-07 between depths of 65 to <br /> 85 feet below existing grade underlain by dense sand to the total depth explored. <br /> EXHIBITS 2.4-1 and 2.4--2: Undocumented Fill Encountered in Test Pit Explorations <br /> Concrete debris ''" hJ" <br /> " ' <br /> Abandoned <br /> r; <br /> or <br /> pipe ' . <br /> f YY 1 y ' .1. yr <br /> tY <br /> I' <br /> Spent Lime <br /> All <br /> Consult the Site Plan and exploration logs for specific subsurface conditions at each location. We <br /> include our exploration logs in Appendix A. The logs contain the soil type, color, consistency, and <br /> visual classification in general accordance with the Unified Soil Classification System. The logs <br /> graphically depict the subsurface conditions encountered at the time of the exploration. <br /> 2.5 GROUNDWATER CONDITIONS <br /> We observed static groundwater in several of our subsurface explorations. We summarize our <br /> observations in the table below: <br /> TABLE 2.5-1: Groundwater Observations <br /> -• <br /> EXPLORATIONNDWATER -• <br /> • • ELEVATION <br /> 4-B01 12'/2 51/2 <br /> 4-B02 8 12 <br /> 4-TP 1 8 12 <br /> 4-TP5 11 9 <br /> 4-TP8 8 10 <br /> 4-TP11 8 10 <br /> 4-CPT1 7 10 <br /> 4-CPT2 7 11 <br /> ENGEO December 13, 2021 <br /> Expect Excellence- <br />