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i 3.0 'REVISED WORK PLAN <br /> 4 <br /> The objectives of the proposed scope of work are to further define the lateral extent of impacted soil <br /> and groundwater, and to define the vertical extent of impacted groundwater beneath the former <br /> UST. To achieve these objectives, three soil,borings•,willWbe,drilled.to_first wgroundwater and one <br /> cone penetration test soil boring will be drilled to a deeper groundwater-bearing interval for soil <br /> and/or groundwater sampling. <br /> x 3.1 Project Planning and Permitting <br /> i Prior to initiating fieldwork, a site-specific health and safety plan will be prepared according to 29 <br /> I i CFR 1910.120. The health and safety plan will.include safety procedures for work to be performed, <br /> chemical hazard information, site safety officers, and.a medical emergency location. <br /> i . To perform the proposed scope of work, drilling permits will oe obtained from EHD. Since all of the <br /> drilling will be conducted on-site, neither off-site access agreements nor encroachment permits will <br /> � •i <br /> be required. At least two working days prior to field work, Ramage.,Environmental will notify EHD <br /> i <br /> and Underground Service Alert so that regulatory and utility inspections can be scheduled. <br /> l . 3.2 Three Soil Borings to First Groundwater <br /> { To further assess the lateral extent of impacted soil and groundwater, soil and gro ,dwater <br /> samples will be collected from three on-site soil borings drilled tofirst groundwat r!(The proposed <br /> 1 soil borings will be located in the southwest corner of the sub`-grade parking area, in the southeast <br /> I ;' A <br /> t corner of the street grade asphalt parking area, and in the sub-grade parking area approximately.Per <br /> feet north of monitoring well MW-1. These proposed boring locations are shown on Figure 3. <br /> A C-57 licensed drilling contractor will drill the soil borings with 8-in8h diameter hollow-stem augers. <br /> The proposed soil borings will be drilled to further evaluate a':silty d interval previously- <br /> encountered at approximately 30 to 35 feet below street grade. Since the sub-grade parking area <br /> is approximately 11 feet below_street grade, the soil borings pro osed for the sub-grade parking <br /> area should only be drilled to a depth of approximately 25 feet The ultimate depths of the soil <br /> € borings will depend ona ithdogic and by geologic conditions observed during drilling. <br /> 9 <br /> i 9 <br /> I <br /> I � . <br />