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SECTION 2 SOIL AND GROUND NATER INVESTIGATION WORK PLAN 1 This section outlines the proposed activities for further evaluation of soil and ground water conditions at the former underground storage tank site Scope of Work ERM-West proposes to construct and sample four ground water monitoring wells (Figure 1-2). The first well will be located at the approximate center of the former tank location. The direction of ground water flow at the subject site is inferred to be to the south, this is the same direction as that which has been determined during the investigation of the 1515 West Weber Avenue site which is located approximately 500 feet to the west of the subject site. Thus, the second well will be located in a hydrologically down-gradient direction from the former UST (to the south) The third well will be situated in a cross-gradient direction from the former UST (to the east), and the fourth well will be located in an up-gradient direction ' from the former UST, to the north Three of the wells will be located outside the building and the fourth may either be located inside the building or will be installed gust outside the building using an angle boring technique. Preparation for Drilling ERM-West will utilize the services of USA Alert and an underground utilities locator to ensure that well borings are placed in locations which are sufficiently removed from underground hazards (pipes, electric lines, etc ) The proposed drilling locations in this work plan are subject to slight modifications based on the findings of the subsurface utilities investigation All of the proposed monitoring wells are situated in areas which are covered with asphalt and/or concrete To gain access to the soils for drilling purposes, a concrete coring company will be retained to cut through the asphalt and concrete 2-1