6807 EVERGREEN WAY 2016-01-01 MF Import

GEOTECHNICAL ENGlNEFRINv STUDY J�!D Architecture �pril 19, 1999 E-8689 I'a�e 4 This report has been prepared far specific application to this project only and in a manner consistent with that level of care and skill ordinarily exercised by other members of the profession currently practicing under similar conditiors in this area for the exclusive use of JMD ArcF�itecture and their representatives. No warranty, expressed or implied, is made. This report, in its entirety, should be included in the project contract documents for the information of the contractor. Site Preaaration and General Earthwork Buiiding and pavement areas should be stripped and cleared of existing pavemant, structures, foundations, surface vegetation and any other c7eleterious material. Existing utility pipes to be abandoned should be plugged or removed so they do not provide a conduit for waYer and cause soil saturaticn and stability problems. We esrimate 2 stripping depth of two to three inches will be required to remove the existing pavement. The existing pavement and foundations may be crushed for use as structural fill. Material reclaimed by crushing and used as fill should have a maximum particle size of three inches and should be adequately mixed with soil to provide a well-graded material. Following the stripping operation, the ground surface where structural fill, foundations, or slabs are to be placed should be observed by a representative of ECI. Proofrolling may be necessary in order to identify soit or unstable areas. Proofrolling should be perforned under the observation oT a representative of ECI. Soil in loose or soft areas, if recompacted and still excessively yielding, should be overexcavated and be replaced with structural fill to a depth geot xtile fabrac placed Idirectly onnthe ove excavated surfacelmaly he p t Pbndge unstable areas. Structural fill is defined as compacted fill placed under buildings, roadways, slabs, pavements, or other I�ad-beari:�g areas. Structural fill under floor slabs and footings should be placed in horizontal lifts not exceeding t�velve f121 inches in loose thickness and compacted to � minimum of �0 percent of its laboratory maximum dry density determined in accordance with ASTM Test Designation D-1557-91 (Modified Proctor). The fill materials should be placed 2t or near their optimum moisture content. Fill under pavements and walks should also he piaced in horizontal lifts and compacted to 90 percent of maximum density except for the top twelve (12) inches which should be compacted to 95 percent of maximum density. Eenh Contultants. Inc.