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2. Any loose areas of soil material evident in the footing excavations should be compacted to 90 percent of ASTM-D-1 557A prior to concrete placement. L IATIONS The materials encountered on the project site and utilized in our laboratory investigation are believed repremitative of the total area, however, soils vary in characteristics between test borings. This in no way constitutes certification of the subsurface soils. Since our investigation is basad on the site materials observed and selective laboratory testing and engineering analysis,the conclusions and recommendations are professional opinions. These opinions have been derived in accordance with current standards of practice and no warranty is either expressed or implied. It is recommended that North American Technical Services,be retained to provide continuous spoil engineering services during the construction operation. This is to observe compliance with the design concepts,specifications or recommendations and to allow design changes in the event that subsurface conditions differ from those anticipated prior to start of construction. The findings of this report are valid as of this date. Changes in the condition of a property can, however, occur with the passage of time,whether they be due to natural processes or the work of man on this or adjacent properties. In addition,changes in the state-of-art and/or Government Code may occur. Due to such changes,the findings of this report may be —/ invalidated wholly or in pan by changes beyond our control. It is the responsibility of the owners,or their representatives to ensure that the information and recommendations contained herein are brought to the attention of the appropriate parties and incorporated into the project's plans and specifications. It is further their responsibility to take the necessary measures to ensure that the contractor and his subcontract recommendations during construction. Abel R. Soares Registered Geotechnical Fogineer ROE#958 /t;.•r L�. 5�,r � ti� �,••7 Th J i NO.�Jg cr v •� �nT��GQ.`y�P a\ •. JF