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COMMERCIAL TANK <br /> EXCAVATION AND SITE PREPARATION <br /> U U I <br /> I oil <br /> 0 <br /> I <br /> I n n I <br /> L — J L — — J L— <br /> 2 MINIMUM (NOTE 1) <br /> PLAN VIEW <br /> (COVERS & RISERS REMOVED) EXCAVATION <br /> (NOTES 1 AND 2) <br /> FINISHED <br /> GRADE <br /> r <br /> BASE <br /> (NOTES <br /> �< 3 AND 4) <br /> r r � <br /> SUB BASE <br /> SIDE ELEVATION END ELEVATION <br /> NOTES: SECTION SECTION <br /> 1, AREA MUST BE PREPARED AND CLEARED TO 2 FEET MINIMUM SURROUNDING ENTIRE TANK. <br /> 2. THE EXCAVATION'S SLOPE, BENCHING OR SHORING SHALL COMPLY WITH THE REQUIREMENTS OF <br /> OSHA 29 CFR 1926 SUBPART P. JENSEN PRECAST WILL NOT VIOLATE THIS OSHA STANDARD IN THE <br /> COURSE OF SETTING AND SEALING THE TANK. <br /> 3. BASE MUST BE LEVEL AND EVEN IN ALL DIRECTIONS. <br /> 4. THE EXCAVATION SHALL BE BEDDED WITH SUITABLE GRANULAR MATERIAL AND SHALL BE <br /> COMPACTED TO 90% OF IT'S MAXIMUM DRY DENSITY OR TO THE REQUIREMENTS OF THE PROJECT <br /> GEOTECHNICAL ENGINEER. <br /> DRAWING NOT TO SCALE <br /> Jensen Precast reserves the right to make changes to product design JrEff#ffil. <br /> and/or dimensions without notice. Please contact Jensen Precast whenever12/31/2009 necessary for confirmation or advice on product design. ST <br /> COMMERCIAL TANK SITE PREP_A.DWG <br /> 92009 <br />