Laserfiche WebLink
Mr. Amir Houriani <br />Project No. 32-6235-00 <br />1601-1607N. Bristol Street <br />August 29, 2022 <br />MAXIMUM DENSITY/OPTIMUM MOISTURE (ASTM:D-1557) <br />CITY OF SANTA ANA <br />Planning and Building Agency <br />PageApproved <br />FOR PERMIT ISSUANCE <br />Master ID: <br />Date: <br />The maximum density/optimum moisture content relationship was determined for a typical sample of the <br />upper soils. The test was conducted in accordance with the ASTM:D-1557 standard. A graphic summary <br />of the test result is included in this report. <br />EXPANSION TEST (ASTM:D-4829) <br />An expansion test was performed on a representative sample of the on -site soils in accordance with <br />ASTM:D-4829 to evaluate its volume change with increasing moisture conditions. The surficial materials <br />exhibited medium expansion potential. The result is provided in the table below: <br />Location <br />Depth (ft.) <br />Soil <br />Expansion Index <br />Expansion Potential <br />Description <br />B-1 <br />0-5 <br />Sandy Lean <br />52 <br />Medium <br />CLAY (CL) <br />CONCLUSIONS AND RECOMMENDATIONS <br />GENERAL <br />Based on the results of subsurface exploration, laboratory testing, and engineering analyses, the <br />proposed development is considered feasible from a geotechnical engineering standpoint, provided the <br />conclusions and recommendations contained in this report are implemented during design and <br />construction. <br />The subsurface materials underlying the site consist of native alluvial soils. The alluvium comprises firm <br />to very stiff lean clays with varying amounts of sands and loose to dense clayey sands. The moisture <br />condition of the soils ranged from slightly moist to wet. No fill materials were identified in the borings. <br />Perched water was encountered during exploration in Boring B-1 at a depth of about 50 feet below <br />existing grade. The surficial on -site soils were measured to have medium expansion potential. <br />SITE PREPARATION / GRADING <br />Prior to the start of construction, areas which will be supporting new structures or improvements shall <br />have all existing fill materials, vegetation, and soils disturbed during demolition removed until firm, <br />competent native soils have been exposed. The on -site materials should be excavatable with <br />conventional earth moving equipment. Site preparation for the proposed development will require <br />removal of certain existing structures. Deleterious materials, organics, and all debris generated during <br />preparation should be exported from the site. <br />n �n_ A.G.I. Geotechnical, Inc. • 16555 Sherman Way, Suite A • Van Nuys, CA 91406 <br />Lz1 Office: (818)785-5244 • Facsimile: (818)785-6251 <br />