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City of Santa Ana <br />September 25, 1992 <br />; 2 - ./ <br />Job No: 01-3058-002-01-00 <br />Log No: 2-2662 <br />Page 11 <br />7.2.3 Preparation of On-Site Soils <br />3-4. <br />a. ,Reworking of the :existing on-site , soils <br />will not be required within building <br />areas:subject . to review during <br />construction and to the recommendations <br />in b and c below, and in Subsection 7.4b <br />(Notes). <br />b.There should be at least 1 foot of <br />compacted fill material under slabs and <br />under footings, extending at least 1 foot <br />beyond the perimeter of footings.The <br />intent of the above recommendation is to <br />provide uniform bearing characteristics <br />within the building area.It is <br />anticipated that this requirement will be <br />met by the existing in-place fill. <br />C.In the proposed parking area,we <br />recommend that the upper 12 to 18 inches <br />of the subgrade soil should be compacted <br />to at least 90 percent relative <br />compaction. <br />d.Any loosening of reworked or native <br />material, consequent to the passage of <br />construction traffic, weathering, etc., <br />should be made good prior to further <br />construction. <br />e.The depths of reworking should be <br />/----m2 -v-/0-- -r- .....1- ·----Il --I-*-I.- ---I-.Il ---- ----). t <br />4