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- -- -�-- k" KLEINFELDER <br /> 7 ASSUMPTIONS AND LIMITATIONS <br /> 7.1 ASSUMPTIONS <br /> This workplan is based on the following assumptions: <br /> • Lodi Vintners will supply Kleinfelder with written authorization to obtain access to <br /> the site to install and sample the wells. <br /> • Adequate work space and access will be provided. <br /> • Drilling/sampling derived wastes will be generated during the proposed <br /> investigation. Excess drilling returns will not be contained and spread on the <br /> ground surface at the site. Water generated during well <br /> development/purging/sampling and water derived from equipment <br /> decontamination also will not be contained and will be discharged to the ground <br /> surface. <br /> • Lodi Vintners, Inc should be aware that penetrating the site's surface is <br /> inherently risky. It is impossible to determine with certainty the precise location <br /> of all structures (such as septic system tanks or leach fields) which may be <br /> buried in the ground. Kleinfelder's fee is not adequate to compensate for both <br /> the performance of the services and the assumption of risk of damage to such <br /> structures. If the active septic system or utilities on site are damaged by our field <br /> activities, repairs will be necessary in order to provide continued service. <br /> Repairs are not included in Kleinfelder's fees. <br /> • Underground Services Alert (USA) at 1-800-642-2444 provides a partial location <br /> service free of charge for major utility lines. It is important that the client <br /> understand that subsurface structures (such as the septic systems, irrigation <br /> lines, leach fields, et cetera) buried under private property will not be marked by <br /> the public utility companies contacted by USA. Kleinfelder will require the drilling <br /> subcontractor to contact USA. <br /> 7.2 LIMITATIONS <br /> Kleinfelder has prepared this workplan in accordance with the generally accepted <br /> standards of care, which exist in San Joaquin County at the time of writing. It should be <br /> recognized that definition and evaluation of geologic and chemical subsurface <br /> conditions are difficult. Judgments leading to conclusions and recommendations are <br /> generally made with an incomplete knowledge of the subsurface and/or historic <br /> 67451.WP1/ST06R295/FB:ly Page 12 of 14 <br /> ©2006 Kleinfelder, Inc. March 31,2006 <br />