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Site Street Address 3810 Bradley Road City Colorado Springs. Colorado <br />b) Was all decontamination performed during this investigation in accordance with the <br />QA/QC as described in Owner/Operator guidance document? Yes. <br />c) If the answer to both of the above is no, complete the following table. <br />E ui ment Decontamination Method <br />NA <br />2. Provide all information regarding sample handling and shipping as instructed in <br />Appendix D. <br />G. GEOLOGY AND HYDROGEOLOGY <br />1. What is the lithology and stratigraphy of the unsaturated and uppermost saturated <br />intervals? The excavation and proximal surrounding area is comprised of moderately to <br />poorly sorted, fine to medium-grained silty sand. <br />2. Regional Hydrogeology (within'/Z mile) (This information is required if groundwater <br />was not encountered during the site characterization. If groundwater was encountered, <br />regional data should only be obtained, as necessary, to supplement site specific data). <br />a) What is the average depth to groundwater? Groundwater is approximately 50' BGS. <br />b) What is the average thickness of the uppermost saturated interval? Unknown <br />c) What is the regional groundwater flow direction? Estimated to be to the South or <br />Southeast, trending toward the Arkansas River valley. Immediate local topography all slopes <br />to the pump location. <br />d) What is the source of the information? Field data, observations and site owner <br />information. <br />3. Site Hydrogeology (Answer the following questions only if groundwater was <br />encountered during site activities). <br />a) What is the average depth to groundwater? ~1] NA <br />b) What is the average thickness of the uppermost saturated interval? [1] NA <br />c) What is the groundwater flow direction (if known)? [1] NA <br />SCR - 02/Ol/99 <br />