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30 August 2006 <br /> AGE-NC Project No. 06-1467 <br /> Page 2 of 4 <br /> The Modesto, Riverbank and Turlock Lake Formations and overlying Recent alluvium are the <br /> principal sources of domestic ground water in the 13,500-square mile San Joaquin Valley Ground <br /> Water Basin(Basin 5-22).The estimated depth to ground water at the site is approximately 10 to 20 <br /> feet below surface grade(bsg)based on information from Lines of Equal Depth of Water Wells Fall <br /> 1999, published by the San Joaquin County Flood Control District and Water Conservation District- <br /> FCD&WCD. <br /> French Camp Slough is the closest water feature to the site, located east of the site and abutting the <br /> site near the northeast corner. The general ground water flow generally toward the east/northeast. <br /> However, this may be greatly modified by local recharge and discharge patterns. <br /> 4.0. SCOPE OF WORK <br /> AGE proposes to advance 9 shallow soil borings for the collection of soil samples. Samples will be <br /> collected to determine if any adverse impact to the subsurface has occurred as the result of the <br /> historical importation of fill dirt to raise the overall grade at the site. The limited phase II site <br /> assessment will include the following tasks: <br /> • Permitting and pre-field work activities; <br /> • Soil and grab ground water sample collection and analysis; <br /> • Report preparation <br /> The site assessment tasks are discussed below. <br /> 4.1. PRE-FIELD WORK TASKS <br /> A health and safety plan will be prepared in accordance with Occupational Safety and Health <br /> Guidance Manual for Hazardous Waste Site Activities(National Institute for Occupational Safety <br /> and Health Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, 1985). <br /> Prior to mobilization,the area of excavation will be clearly marked and a utility clearance obtained <br /> through Underground Service Alert. <br /> 4.2. SOIL SAMPLE COLLECTION AND ANALYSIS <br /> AGE proposes to advance a total of nine soil borings using direct push technology. Borings will be <br /> advanced in various areas throughout the property to depths of approximately 5 feet below surface <br /> Advanced GeoEnvironmental,Inc. <br />