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Report of Soils Investigation <br />2215 South Standard Ave., Proposed Addition <br />Santa Ana- California <br />Page 25 of 27 <br />Job No. 40-0613 <br />April 5. 1999 <br />-t <br />l <br />10.6 Exterior Flatwork <br />To reduce the potential for distress to exterior flatwork caused by minor settlement of <br />foundation soils, we recommend that such flatwork be installed with crack-control joints <br />at appropriate spacing as designed by the structural engineer. Flatwork that should be <br />installed with crack control joints includes driveways, sidewalks, and architectural <br />features. AII subgrades should be prepared in accordance with the earthwork <br />recommendations previously given prior to placing concrete. Positive drainage should be <br />established and maintained adjacent to all flatwork. <br />10.7 Drainage <br />Surface runoff should be collected and directed oflsite by means of appropriate erosion <br />reducing devices. Roof gutters and downspouts should be installed on completed <br />structures and positive drainage should be established. Positive drainage is defined as <br />drainage away from structures at a gradient ofat least 2 percent for the distance ola least <br />5 feet. The project civil engineer should thoroughly evaluate the on-site drainage and <br />make provisions as necessary to keep surface water from entering the structure area. <br />.-.,| <br />I