Laserfiche WebLink
WWI <br /> 31 October 2007 <br /> AGE-NC Project No. 07-1524 <br /> Page 3 of 10 <br /> soil samples and ground water will be collected for analysis. The soil and ground water sample <br /> intervals will be based on the stratigraphic data provided from the CPT sounding. A minimum of <br /> three soil samples will be collected,while AGE estimates two deep,grab ground water samples will <br /> be collected and analyzed.Additionally three soil borings will be advanced and completedas shallow <br /> ground water monitoring,wells.The wells will be developed and samples collected for analysis. Data <br /> collected from the monitoring wells will be used to determine the ground water flow direction(s)and <br /> determine the requirements for additional site assessment, including the installation of additional <br /> ground water monitoring wells. <br /> Assessment will consist of the following tasks: <br /> • Permitting and pre-field work activities; <br /> • CPT drilling and sample collection; <br /> • Installation of monitoring wells; <br /> • Laboratory analysis of samples; <br /> • Preparation of a report of findings. <br /> 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the EHD. In addition, an updated health <br /> and safety plan will be prepared in accordance with Occupational Safety and Health Guidance <br /> Manual for Hazardous Waste Site Activities (National Institute for Occupational Safety and Health <br /> Administration, U.S. Coast Guard and U.S. Environmental Protection Agency). Prior to <br /> mobilization,the area of soil borings will be clearly marked and a utility clearance obtained through <br /> Underground Service Alert. <br /> 3.2. CPT DRILLING AND SAMPLE COLLECTION <br /> AGE proposes to advance one paired CPT soil boring at the site as part of site assessment activities. <br /> The proposed CPT soil boring location is illustrated in Figure 2. The CPT boring will be advanced <br /> to characterize lithology.model potential contaminant migration pathways and to assess the vertical <br /> extent of hydrocarbon-impacted ground water. AGE proposes to advance the CPT soil boring in the <br /> former UST area. <br /> The boring will be advanced to approximately 60feet bsg, or until grab ground water samples no <br /> longer demonstrate hydrocarbon impact. The total depth of the boring may vary according to <br /> Advanced GeoEnvironmental,Inc. <br />