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7.0 GENERAL <br /> 7.1 Subsurface Variations <br /> The analyses and recommendations presented in this report are based on data obtained from <br /> a limited number of soil borings. Variations can occur away from the borings, the nature of <br /> which may not become apparent until additional exploration work is completed or <br /> construction is conducted. A reevaluation of the recommendations in this report should be <br /> made after performing on-site observations during construction to note the characteristics of <br /> any variations. The variations may result in additional foundation costs and it is suggested <br /> that a contingency be provided for this purpose. <br /> It is recommended that we be retained to perform the observation and testing program during <br /> construction to evaluate whether the design is as expected,if any design changes have affected <br /> the validity of our recommendations, and if our recommendations have been correctly <br /> interpreted and implemented in the designs, specifications and construction methods. This <br /> will allow correlation of the soil conditions encountered during construction to the soil borings <br /> and will provide continuity of professional responsibility. <br /> 7.2 Review of Design <br /> This report is based on the design of the proposed structure as related to us for preparation of <br /> this report. It is recommended that we be retained to review the geotechnical aspects of the <br /> design and specifications. With the review we will evaluate whether any changes have <br /> affected the validity of the recommendations and whether our recommendations have been <br /> correctly interpreted and implemented in the design and specifications. <br /> 7.3 Groundwater Fluctuations <br /> We made water level measurements in the borings at the times and under the conditions stated <br /> on the boring logs. The data was interpreted in the text of this report. The period of <br /> observation was relatively short and fluctuations in the groundwater level may occur due to <br /> rainfall,flooding,irrigation,spring thaw,drainage,and other seasonal and annual factors not <br /> evident at the time the observations were made. Design drawings and specifications and <br /> construction planning should recognize the possibility of fluctuations. <br /> 7.4 Use of Report <br /> This report is for the exclusive use of Welch Forsman Associates and their design team to use <br /> to design the proposed structure and prepare construction documents. In the absence of our <br /> written approval, we make no representation and assume no responsibility to other parties <br /> regarding this report. The data, analysis and recommendations may not be appropriate for <br /> other structures or purposes. We recommend that parties contemplating other structures or <br /> purposes contact us. <br /> 8 <br />