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-`^^_~_ ------ <br /> 6.2.28.1.Subtract <br /> _'�.28.1.Subtract Measurement#4 from Measurement#1 and record 5.3-8.Proceed with POINTS 5.2./� through��23. of the dry- <br /> it untheDefl*mion[Woaourementonth*l8nk|nstal|ation Checklist. hole installation instructions. <br /> 52.29. Install n,in/ono*d concrete or asphalt, if used,at this 5.3.9. Ballast the tank once the haoKji|| is even with the top of <br /> time.See SECTION Z4 the tank.See SECTION 12. <br /> 52.281.The cover depth must meet the appropriate minimum 5.3.18.Proceed with POINTS J�.25. through 5.2.81. ofthe <br /> specified in SECTION 74. dry-hole installation instructions. <br /> 5%2S2.All backfill that imtobacompacted must bocompacted ( <br /> with ahend-guidad.vibnat|ng-plate.mechanical compactor. 6^ BACKFILL MATERIAL <br /> 5.2,30.|fthe tank hos umondsystem,ng system,after backfilling is ^1^ GENERAL <br /> completed and after top slab|nlnplace(if uoad). perform nec- 6.1.1.Xerxes tanks shall buinstalled using select rounded <br /> osnarymonitoring checks.See SECTION 15. stones orcrushed stones omprimary backfill material.See <br /> SECTION 82.for definition ofprimary backfill material. <br /> 5.2.31. Complete the Tank Installation Checklist, <br /> 0.1.2.Alternatively,Xerxes tanks shall beinstalled using pri- � <br /> 5'3' WET-HOLE INSTALLATION mambackfill vertically uptoatleast 7spercent orthe tank di- � <br /> 5.3.1.Fh0ow,thaoM+hole installation instructions(SECTION ameterand secondary backfill above the primary backfiU.See <br /> 5.2Jwith the modifications listed below. SECTION 6.J.for definition ufsecondary backfill and Xerxes <br /> Split Oock�//nxm/ h�nx APPENDIX C, for more information5�3�2.Pex�nnP0/NT�5�2�t through 5.2.4.4. ofthe�ry'ho|o Instructions, <br /> �ge�ing����m��� <br /> Installation instructions. <br /> 6.1.3.Uoin8 backfill material other than that specified in <br /> b13.B�/hmpv/�nn�AP0/�T5�2��� oYtk*d/y'ho|oina\�|e, ' <br /> POINTS 6.1. �� and�/2 without prior written authorization <br /> tioninmmcUvnu.pum�w��r8nmth�axouvat|onhu|oxnd ' <br /> �omXerxes wiUvoid Xon*m'obligations under the limited <br /> cpntinuepumpin8tomaiota|om|n|mumwat�r|�vo|dur|og <br /> tank installation. warranty. <br /> o.o.o.1.Attempt tomaintain the water level below the top of I NOTICE <br /> the bedding materials until the tank can be fully backfilled and Using other than cifiad backfill material may cause tank <br /> ballasted. failure,ormay result|ndamage tothe tank and/or ovnnund' <br /> 5.3.4.Proceed with POINTS 5.2.5.through 5.2.9.1. ofthe dry' |ngpmperty. <br /> hole installation instructions. 6.2. PRIMARY BACKFILL <br /> 5.3.4.1. |nhigh-water conditions,when Xerxes' preferred Man- 6.2.1.Primary backfill material must meet the following speci- <br /> Out-of-Hole(MOH)anchoring method is not available or pos- ficotiuna: <br /> aib|o.see SECTION o.8. for pnalternate method. 621.1. Material ium buclean,frea-flmw[nq.and free of dirt, <br /> 5.8.b.Proceed with POINTS 5.2./0. through 5.2.12.8.2. ufthe sand,large rocks,roots,organic materials,debris, ice and <br />� <br /> dry-hole installation instructions. snow.Backfill material shall not be frozen or contain lumps of <br />� fm�uomomrio|atony�moduhngp|anym��� <br />� 5.3.O.|nhigh-w�erconddinny,where kionmpossible m <br /> maintain the water level below the top of the bedding material 0.2.1.2.An important characteristic of good backfill material is <br /> during the entire ins/o||s/ion, partially ballast the tank tvfirmly hardness orstability when exposed to water or loads. Most <br /> seat the tank into the bedding msdoriui and to keep it from matmie|n have no problem meeting the hardness requirement. <br /> floating-See SECTION 12 for instructions. K4e1orialo like soft limestone,aandstmna, sea shells or shale <br /> should not haused mvhmckfUbecause they may break down <br /> 537 Thebo||oot|evo|inthe�onkmumteitherbe|omer�han <br /> . . � overtime. <br /> thobookf ill material orless than 10inches above the water <br /> level inthe hole.See FIGURE 5-2. O.2].8.When using select rounded stones,they must con- <br /> form to the specifications of ASTM cna. size numbers 6.67 <br />� Liquid in tank must not exceed or7.See FIGURE 6-1 and Xerxes Primary Backfill Require- <br /> I T11 I water in hole by more than 12" <br /> ' <br /> ments'APPENDIX[\for additional information onbackfill ma- <br /> terial opooifioationv.Fill 1.1. <br /> | <br /> Rounded Stone Crushed Stone <br />� <br /> FIGURE � <br /> FIGURE 6-1 � <br />� <br /> 10 <br />' <br />, � <br />