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P <br />, a <br />3.11 PLACEMENT OF EQUIP <br />E <br />A. Move equipment through openings; disassemble and reassemble and perform other work necessary to <br />accomplish installation of work. <br />B. Alterations: Obtain approval before cutting: <br />1. Perform cutting, patching and repairing of existing construction to permit installation, relocation or <br />removal of work. <br />2. Match existing materials and surfaces. Duplicate undisturbed adjacent finishes, colors, textures, and <br />profiles. Where there is dispute as to whether duplication is successful or has been achieved to a <br />reasonable degree, the State's judgement shall be final. <br />3. Make parts fit properly. <br />4. Cut existing (old) construction with special care to prevent damage to structural members and existing <br />work. <br />5. Drill or core holes in concrete walls or floors. <br />6. Sawcut existing asphalt concrete or portland cement concrete. Sawcut edges of existing concrete before <br />repair. <br />7. Sawcut edges of existing concrete before repair. <br />8. After covering the work inspect conditions affecting installation of new work. <br />9. If uncovered conditions are not as anticipated, immediately notify the State and obtain direction. <br />10. Do not proceed in areas of discrepancy until such discrepancies have been resolved. <br />n C. Materials: Comply with specifications and standards for each specific product involved. Where <br />µ specifications are not included for items requiring patching, provide materials of equal or better quality than <br />existing materials, as determined by the State. <br />D. Patching: Achieve security, strength, and weather protection, as applicable. Preserve continuity of existing <br />fire ratings. <br />E. Temporary Support: Provide adequate temporary structural support as necessary to assure structural <br />integrity of affected portion of work. <br />3.12 EXCAVATING AND BACKFILLING <br />A. General: Excavate and backfill for installation (or removal) of Mechanical Work, including piping and <br />structures. <br />1. Code Compliance: California Administrative Code, Title 24. <br />2. Anchor Slabs: Existing underground tanks are anchored to reinforced concrete slabs. <br />3. Groundwater: Groundwater level is approximately three feet (3' - 0 ") below existing finish grade. <br />Contractor shall provide adequate de -watering and drain device during UST tank removal and <br />installation. <br />B. Excavation: <br />1. General: Vertical construction, 6 inches clear between pipes in same trench, width of trench not to <br />exceed pipe dimensions by 9 inches on each side. If no elevations shown, excavate to provide minimum <br />2 feet - 6 inches of cover from top of pipe, conduit or tank to finished grade. Encase pipe below <br />roadway with less than 2 feet - 6 inches of cover in 4 inches of concrete. <br />2. Machine Excavation: Excavate 6 inches minimum below grade line. Place bed of sand or 1/2 inch max <br />size gravel and compact to grade, with firm support and uniform bearing for bottom 90 degrees of pipe <br />circumference; use sand only for wrapped or coated pipe. <br />UNDERGROUND FUEL STORAGE TANK <br />070601:HTL:lc:cw 13215-25 CH 107517 / 107518 <br />