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KLEINFELDER the permit process. Our proposed schedule assumes that Crossroads Commerce Center will expedite the completion of these forms and their return to Meinfelder for submittal to PHS/EHD. Kleinfelder's drilling subcontractor will also contact Underground Service Alert 48 hours prior to conducting fieldwork to notify local utilities of our proposed subsurface work. Task 2 Soil Samule Collection Kleinfelder would collect soil samples from the five (5) borings advanced using a truck mounted drill rig equipped with 10-5/8 inch diameter hollow stem auger. Soil samples will be collected continuously using a continuous soil coring device until termination of the boring (approximately 30 feet below grade), as specified by Gary Litton. The borings will be drilled, logged, and sampled following the protocol described in Attachment B, Section B-2.3. During the advancement of the soil borings, soil samples will be collected for lithologic classification is based on the Unified Soil Classification System (USCS). Chemical analysis has not been requested for any of the soil samples. The borings will be advanced on parcel numbers 198-130-023, -025, and -031 and 198-220-001 and -005. Groundwater is currently estimated to be at a depth of 7'/2 feet in the area, but groundwater depth may be variable. Four-inch wells will be constructed in the borings, as described in Attachment B, Section B-3.1. The wells will be screened from 5 feet above to 10 feet below first encountered groundwater in an attempt to facilitate future groundwater level fluctuations. At this time, we believe a sand pack of No. 2 / No. 16 mesh will be required to be placed around the 0.10 inch well screen. The wells will be completed by installing a bentonite plug, grouting the annular space, and installing a locking cap and locking stovepipe. The wells will be developed as described in Attachment B. Water level measurements will be obtained as described in Attachment B, Section B-4.1. The wells will not be surveyed by others as described in Attachment B. Prior to obtaining water level measurements, the wells will be allowed to equilibrate for a period of approximately 1/2 to 1 hour. Task 3 Laboratory Analysis Currently, sampling and subsequent chemical analysis of the groundwater within the monitoring wells is not included in Kleinfelder's scope of work. However, sampling and analysis may be requested at a later date. It is unknown if the wall design will be conducive to sampling for later- identified constituents of concern. 20-4445-03.G01/2000P465 Page A-2 Copyright 2000,Kleinfelder,Inc. December 28,2000