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Task 1 . 1: <br /> Necessary Permita <br /> Collect and review available information and <br /> reports related to any past or ongoing subsurface <br /> investigation at the nearby service stations, to <br /> evaluate the potential relationships of the <br /> sources and nature of hydrocarbons detected at the <br /> site. Prior to commencing with the supplemental <br /> investigation, all required permits will be <br /> obtained and field activities will be coordinated <br /> with the appropriate agencies . This will include <br /> locating underground utilities and interferences <br /> that may be encountered during drilling or field <br /> activities. <br /> Task 1 . 2 : Q_gnduct Qualitative Shallow Water Survey <br /> A qualitative sampling and analysis of the shallow <br /> ground water will be conducted to assist in <br /> defining the lateral extent of hydrocarbons in <br /> ground water downgradient of and in the vicinity <br /> of the site. The qualitative survey is <br /> essentially a screening process to assist in <br /> determining the most appropriate locations of the <br /> additional monitoring wells necessary to fully <br /> define the nature and extent of hydrocarbons . The <br /> procedure to be used will be based on the soil <br /> boring technique in combination with ground water <br /> sampling (such as the Hydropunch) . All samples <br /> collected will be analyzed for the specified <br /> constituents, either onsite using field <br /> instruments or a mobile laboratory or at an <br /> offsite laboratory. <br /> Proposed sampling locations are shown on Figure 2 . <br /> The actual location of the sampling points will be <br /> determined in the field, using results of previous <br /> investigations and onsite sample analysis and <br /> after survey of underground interferences . <br /> Samples will be analyzed for total volatile <br /> hydrocarbons or TPH, and for BTEX components . <br /> During the qualitative ground water survey, soil <br /> samples will also be collected for laboratory <br /> analysis to assess the extent of adsorbed-phase <br /> hydrocarbons in the subsurface soil offsite, if <br /> any. The procedures for soil sampling shall be in <br /> accordance with the guidelines and requirements of <br /> the regulatory agencies and as described in <br /> Task 1. 3 . <br />