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-3 - <br /> activities <br /> 3 -activities because of the need to obtain the cooperation of off site property <br /> owners to permit drilling on their property. <br /> This report should incorporate the Preliminary Report information in summary and <br /> delineate the problem accurately by including: <br /> Pagination <br /> Tables summarizing raw data such as compound concentrations found <br /> Figures delineating horizontal and vertical extent of a plume <br /> Depth to first and second ground water <br /> Ground water gradient based upon recent data <br /> Soil stratigraphy based upon borings, wells, trenches and supporting logs <br /> Local wells, buildings or utilities impacted or potentially threatened <br /> Defined extent of soil and ground water contamination, the "ZERO LINE" <br /> Floating productfound--depthand extent <br /> Investigate and submit proposals and costs for at least: <br /> a. Excavation <br /> b. On-site soil aeration <br /> c. Off site soil treatment <br /> d. Landfilling <br /> e. Soil venting <br /> f. Ground water extraction and treatment by <br /> aeration,carbon filtration, pump to sewer, etc. <br /> g Biodegradation--soil and ground water <br /> fi. Physical containment <br /> 1. Chemical neutralization <br /> J. No action <br /> Some alternatives may be eliminated as simply not feasible for the site. For <br /> clayaso is where biodpis egradatitonal in or excavation may but e better consideration gilt <br /> In order for our review to proceed and the tank owner to be back in business as <br /> too interas pret pages ofossible, a rlr rd data complete <br /> attemptstoeexplain themdo not to the tank the <br /> owner. <br /> Note: if <br /> mfustlin a have assurances Sewer <br /> m the line, <br /> regulatingpagency that tetc are he activitthe <br /> y is <br /> acceptable. <br /> Site maps and soil data are to be reported as follows: <br /> I. All maps oriented with north up on the page, <br /> 2. A bar scale included, e.g. _S—I_S = 10 feet, <br />