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Project No. JB-569 20 June 2006 Revised 18 October 2006 Page 15 for subsurface saturation. It is important that all utility trenches be properly backfilled. If practicable, planters and/or landscaping should not be adjacent to or near the structures. If vegetation must be planted adjacent to or near structures, plants that require very little moisture with drip irrigation systems should be used. Sprinkler heads should not be placed where they could saturate foundation soil. 6.7 Miscellaneous Our exploration did not reveal the presence of buried items such as leaching fields, wells, storage tanks, etc other than previously discussed. We understand, however, that such items may be present. If such items are encountered during grading or during excavations of foundations, our firm should be notified immediately to provide recommendations for proper procedures. Also, this study i did not include investigations for toxic substances or groundwater contamination of any type. If such conditions are encountered during site development, additional studies will be required. 6.8 Plan Review Before submitting design drawings and construction documents to the appropriate local agency for approval, copies of the documents should be reviewed by our firm to ensure that the recommendations in this report have been effectively incorporated. 6.9 Construction Observations We recommend that our representative be present during grading and foundation excavation to observe that the work performed is in conformance with specifications and recommendations provided here. We will also perform testing as necessary to evaluate the quality of the materials and their relative compaction. Records will be maintained of our site visits and test results. At the completion of site grading and foundation excavation, we will submit a summary of our observation and test results along with any necessary supplemental recommendations. To assure that our personnel are at the site when needed, we require that you notify us at least 2 working days before the task begins. Korbmacher Engineering, Inc.